CN106976399A - Control circuit, residual capacity of battery display unit, vehicle and computer program - Google Patents
Control circuit, residual capacity of battery display unit, vehicle and computer program Download PDFInfo
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- CN106976399A CN106976399A CN201710033033.XA CN201710033033A CN106976399A CN 106976399 A CN106976399 A CN 106976399A CN 201710033033 A CN201710033033 A CN 201710033033A CN 106976399 A CN106976399 A CN 106976399A
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- 238000004590 computer program Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 112
- 230000008569 process Effects 0.000 claims abstract description 96
- 230000005611 electricity Effects 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000002045 lasting effect Effects 0.000 claims description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 2
- 230000006870 function Effects 0.000 description 48
- 238000009825 accumulation Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002547 anomalous effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000005039 memory span Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Tests Of Electric Status Of Batteries (AREA)
- Instrument Panels (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to control circuit, residual capacity of battery display unit, vehicle and computer program.Control circuit, which may be mounted at, to be indicated the surplus information of the surplus for the electric energy accumulated in the battery with acquisition on the vehicle including battery and exports the pointer continuous moving that the surplus information of acquisition is set in residual capacity of battery display unit to drive.The control circuit includes interface, and it receives the information of the actual voltage value on the battery；And process circuit, it is in each of three or more regions defined according to the amount for the electric energy accumulated in the battery, set the higher limit for voltage, and, in the case where the actual voltage value of reception is the higher limit or greater value, the higher limit is set as pointer magnitude of voltage and using the pointer magnitude of voltage to obtain the surplus information.
Description
Technical field
The present invention relates to for showing remaining battery in pointer (pointer type) residual capacity of battery display unit
The technology of amount.
Background technology
Recently, electric vehicle is progressively promoted.Electric vehicle by the electric energy accumulated in the battery be converted to driving force with
Obtain propulsive force.
A type of electric vehicle is included in the pointer residual capacity of battery display unit in instrument pack.Pointer electricity
Pond surplus display unit shows residual capacity of battery by using the pointer of continuous moving.Personnel in vehicle are by the position of pointer
Understanding residual capacity of battery is put, in other words, the operating time of electric vehicle.
For showing that the simplest method of residual capacity of battery is the measured value that shows voltmeter.However, using this method,
Even if residual capacity of battery does not change, the position of the pointer of residual capacity of battery instrument may also significantly be moved.For example, according to
Battery temperature is high or low, with the presence or absence of road load etc., even if residual capacity of battery is identical, and the position of pointer is also likely to be
It is significantly different.Accordingly, it would be desirable to further improve the display precision of surplus.
Japanese Laid-Open Patent Publication No.2012-239290 discloses pointer residual capacity of battery display unit.Japanese special
Open in patent gazette No.2012-239290, based on virtual voltage, (the presumption current value is by discharge current figure with presumption current value
Calculated with residual capacitance figure) to obtain presumption level of power, also, subtract presumption level of power to obtain electricity from full level of power
Pond surplus.When residual capacity of battery is 80% or greater value, control pointer is with region-wide middle indicating positions；Also, when electricity
When pond surplus is 20% or smaller value, pointer indicating positions in red area is controlled.
Technology described in Japanese Laid-Open Patent Publication No.2012-239290 is firstly the need of obtaining presumption current value simultaneously
And carry out calculation level of power using the presumption current value afterwards.In addition, it is necessary to various types of information (discharge current amounts
Deng) determine residual capacity of battery.That is, the technology in Japanese Laid-Open Patent Publication No.2012-239290 needs complicated process
To obtain residual capacity of battery.
It is an object of the invention to provide the method for showing residual capacity of battery, this method has relatively small processing load
Higher precision.
The content of the invention
According to the present invention illustrative embodiment in control circuit be can be arranged on include on the vehicle of battery with
Obtain the surplus information of the surplus for the electric energy for indicating to accumulate in the battery and export the surplus information of acquisition to drive
Pointer continuous moving, pointer is arranged in residual capacity of battery display unit, and control circuit includes：Interface, it is received on battery
Actual voltage value information；And process circuit, it is in three or more defined according to the amount for the electric energy accumulated in the battery
In each of region, the higher limit for voltage is set, also, is higher limit or greater value in the actual voltage value of reception
In the case of, higher limit is set as pointer magnitude of voltage and surplus information is obtained by using pointer magnitude of voltage.
In one embodiment, process circuit can carry out regulation current region by using the actual voltage value of battery, and
And, in the case where the actual voltage value of reception is less than the higher limit set in current region, actual voltage value is set as
Pointer magnitude of voltage.
In one embodiment, process circuit can be set in each of three or more regions for according to reality
The higher limit of the voltage of border electric current value changes.
In one embodiment, when actual current value is relatively large, process circuit can be in three or more regions
Each in set relatively small higher limit for voltage.
In one embodiment, by using being set for each of three or more regions and show in reality
Border current value and form or function for relation between the higher limit of voltage, process circuit can be set for according to actual electricity
The higher limit of the voltage of flow valuve change.
In one embodiment, process circuit carrys out regulation current region by using actual voltage value, also, for advising
In the case of not described in form in fixed current region with actual current value identical value, using describe in the table to
Few two relations between current value and actual current value are by least two for voltage corresponding with least two current values
Higher limit is calculated for the higher limit with present current value relevant voltage
In one embodiment, interface can also receive temperature value corresponding with the Current Temperatures of battery；And processing electricity
Road is set in each of three or more regions for the upper limit according to temperature value and the voltage of actual current value changes
Value.
In one embodiment, when temperature value is relatively low, process circuit can be every in three or more regions
The relatively small higher limit for voltage is set in one.
In one embodiment, by using being set for each of three or more regions and show in reality
Border current value and current temperature value and form or function for relation between the higher limit of voltage, process circuit can be set
For the higher limit of voltage, higher limit is obtained by present current value and current temperature value.
In one embodiment, process circuit can carry out regulation current region by using actual voltage value, also, with
Do not described in form in defined current region with current temperature value identical value and with actual current value identical value
In the case of, expression corresponding with least two temperature values described in the table is calculated in present current value and for voltage
The interpolation information of relation between higher limit, and use from interpolation information acquisition at least two current values and present current value
Between relation by least two higher limits of voltage corresponding with least two current values enter row interpolation obtain be used for it is current
The higher limit of the corresponding voltage of current value.
In one embodiment, interface can receive the actual voltage value on battery for the second time after predetermined lasting time
With the information of actual current value；And the actual voltage value that process circuit can be received by using second works as proparea to update
Domain, also, in the case of Zone switched, set the higher limit of voltage corresponding with switching rear region.
In one embodiment, when the consumption of the electric energy of battery exceedes pre-determined reference value, process circuit can be by
Higher limit of the step reduction for voltage.
In one embodiment, the consumption of electric energy can by using the range ability of vehicle, vehicle run time
Determined with the accumulated value of any one of the current consumption of battery.
In one embodiment, in the case of Zone switched, unless met predetermined condition, otherwise forbid being switched to
Previous region.
In one embodiment, as long as predetermined condition is probably the main switch for closing vehicle.
Residual capacity of battery display unit in the illustrative embodiment of the present invention includes the control according to any of the above-described
Circuit processed；Pointer；And drive mechanism, it receives surplus information from control circuit, also, makes pointer based on surplus information
Continuous moving.
Vehicle in the illustrative embodiment of the present invention includes the control circuit according to any of the above-described；It is surplus with battery
Surplus display unit, it includes pointer and drive mechanism.Drive mechanism receives surplus information from control circuit, also, is based on
Surplus information makes pointer continuous moving.
Vehicle in the illustrative embodiment of the present invention includes above-mentioned residual capacity of battery display unit；Battery；With
Motor, its can by battery supplied driven by power.
In one embodiment, battery can be lead accumulator.
In one embodiment, battery can include multiple battery blocks, and each battery block can accumulate electric energy.
Computer program in the illustrative embodiment of the present invention can be electric by the processing being included in control circuit
Road is performed, and control circuit may be mounted on the vehicle including battery to obtain the surplus for the electric energy for indicating to accumulate in the battery
Surplus information and the surplus information of acquisition is exported to drive pointer continuous moving, pointer is arranged on residual capacity of battery and shown
Show in unit, the computer program with process circuit performs procedure below：Receive the information of the actual voltage value on battery
Process；Set in each of three or more regions defined according to the amount for the electric energy accumulated in the battery for electricity
The process of the higher limit of pressure；In the case where the actual voltage value of reception is higher limit or greater value, higher limit is set as to refer to
The process of pin magnitude of voltage；And the process of surplus information is obtained by using pointer magnitude of voltage.
In an illustrative embodiment according to the present invention, in three defined according to the amount for the electric energy accumulated in battery
Or more set higher limit for voltage in each of region, also, reception actual voltage value for higher limit or
In the case of greater value, higher limit is set as current voltage value.Using current voltage value to obtain the surplus information of battery.
, will be upper in the case where the actual voltage value of the battery of reception indicates to be more than or equal to the value of the amount for the electric energy accumulated in the battery
Limit value rather than actual voltage value are set as current voltage value and for obtaining surplus information.Therefore, it is to avoid pointer with up to
The state of surplus is pointed to or more than the mode of the hunting range of the amount of electric energy accumulated in the battery.Need at three or more
Higher limit is set in each of multizone.Therefore, the display of surplus is with relatively small processing load and high accuracy.
Brief description of the drawings
Fig. 1 is the side view for the outward appearance for showing the Straddle riding type electric bicycle 1 in the illustrative embodiment according to the present invention
Figure.
Fig. 2 schematically shows circuit included in electric bicycle 1.
Fig. 3 schematically shows the outward appearance of instrument pack 55.
Fig. 4 schematically shows main from battery 30 to the information flow of instrument pack 55.
Fig. 5 shows the hardware configuration of instrument pack 55.
Fig. 6 shown in traditional pointer control operation, the relation between the surplus of battery and the magnitude of voltage of battery.
Fig. 7 schematically shows the hunting range of the pointer 82 when surplus is L1, L2 and L3.
Fig. 8 show for surplus set six regions and in each in region set higher limit in the case of,
Relation between the surplus and pointer magnitude of voltage of battery.
Fig. 9 is schematically shown when surplus is L1, L2 and L3, the hunting range of pointer 82.
Figure 10 A show form 101, and it is set in the condition of six regions determined when starting vehicle and delimited area.
Figure 10 B are shown schematically in the relation between region and surplus.
Figure 11 A show form 101-1, and it can be used for region hand-off process when vehicle is run.
Figure 11 B show form 101-2, in another example, and it can be used for region hand-off process when vehicle is run.
Figure 12 shows group of functions 102, and it can be used for region hand-off process when vehicle is run.
Figure 13 is the flow chart for showing the step of residual capacity of battery shows process.
Figure 14 is the flow chart for the detailed step for showing pointer magnitude of voltage determination process.
Figure 15 is shown in the case of Zone switched, the flow chart of the detailed step of pointer magnitude of voltage Vm determination process.
Figure 16 shows in example 2, the relation between the position of residual capacity of battery and pointer 82.
Figure 17 is the zoomed-in view of Figure 16 part surrounded by double dot dash line.
Figure 18 is to show in example 2, the flow chart of the detailed step of pointer magnitude of voltage Vm determination process.
Figure 19 shows pointer magnitude of voltage Vm shown in figure 16 another example.
Figure 20 shows the voltage curve of the temperature change according to battery 30.
Figure 21 A show group of functions 202A, and when the temperature of battery 30 is 0 DEG C, it can be used for region switching.
Figure 21 B show group of functions 202B, and when the temperature of battery 30 is 25 DEG C, it can be used for region switching.
Figure 22 shows the concept of the method for producing the function for arbitrary temp by the function for two temperature.
Figure 23 is shown in first variation, and the example of the structure of process is shown for residual capacity of battery.
Figure 24 is shown in second variation, and the example of the structure of process is shown for residual capacity of battery.
Embodiment
Hereinafter, the technology for showing the residual capacity of battery for electric vehicle will be described with reference to the drawings.
In this manual, Straddle riding type electric bicycle is described as the embodiment of electric vehicle.This is only to show
Example.Electric vehicle can be other electric bicycles in addition to Straddle riding type electric bicycle, or including three or more
The vehicle of many wheels, such as electro-tricycle.Following examples are only example, also, are implemented the invention is not restricted to following
Example in any one.
In this manual, multiple embodiments will be described.All embodiments are used to Straddle riding type electric bicycle.Therefore,
Before embodiment is provided, the structure of electric bicycle will be described.Then, will be every as the certain content of each embodiment
Residual capacity of battery is described in detail in individual embodiment and shows process.
Fig. 1 is to show in an illustrative embodiment of the invention, the side view of the outward appearance of Straddle riding type electric bicycle 1.
In the following description, unless specified otherwise herein, term " preceding " and " rear " refer to what is seen from the rider of electric bicycle
Front and rear.Alphabetical F and Re in the accompanying drawings represents " preceding " and " rear " respectively.In the description to embodiment, identical element will
With identical reference, also, repetitive description will be omitted.
As shown in FIG. 1, electric bicycle 1 includes car body 10, steering tiller 12, front-wheel 14, trailing wheel 16, motor 20
With vehicle seat 26.
Car body 10 includes vehicle body frame and body cover.Car body 10 supports front fork 22.Steering tiller 12 is installed to front fork 22
Top.Front-wheel 14 is supported by the bottom of front fork 22.
Trailing wheel 16 and motor 20 are supported with swingable relative to car body 10 by swing arm 24.In this example, trailing wheel 16
It is driving wheel, also, front-wheel 14 is driven pulley.The rotation of motor 20 is passed to trailing wheel 16, therefore, and electric bicycle 1 is transported
OK.
In the bottom being located between front-wheel 14 and trailing wheel 16 of car body 10, being provided with makes rider put his/her pin
In pedal 28 thereon.In the lower section of pedal 28, battery 30 is installed.For example, battery 30 is lead accumulator.Battery 30 has
For example, 60V output voltage.The output voltage of battery 30 is example, and can be other values.For example, battery 30 is defeated
It can be 36V, 48V, 72V etc. to go out voltage.The output voltage of battery 30 can be (each for example, by being connected in series multiple battery blocks
The individual output voltage for being respectively provided with 12V) adjust.Motor 20 is driven according to the electric power supplied by battery 30.
In the vicinity of steering tiller 12, head lamp 53, electronic throttle 54 and instrument pack 55 are set as electric part.Head lamp
53 provide the light of the front region of illumination electric bicycle 1.Rider operates electronic throttle 54 to adjust turning for motor 20
Speed.Instrument pack 55 shows various types of information, the speed of service, residual capacity of battery, drive pattern etc..Taillight 56 is located at
The rear portion of car body 10 is to inform that the vehicle run after electric bicycle 1 has electric bicycle 1.
The electric power supplied by battery 30 is fed to via wire harness 32 and terminal board 41, for example, motor control unit is (hereinafter referred to as
For " MCU ") 42, breaker 43, DC/DC converters 44 and alarm 46.Battery 30 by charge connector by being connected to charging
Groove 45 charges.
Now, with reference to Fig. 1 and Fig. 2, description is set in the circuit in electric bicycle 1.Fig. 2 schematically shows electronic
Included circuit in bicycle 1.In order to more fully understand, the not shown terminal boards 41 of Fig. 2.
The operation that main switch 49 is made according to rider is being switched on or switched off the electric power of electric bicycle 1.Supplied by battery 30
The electric power answered is fed to MCU 42 via breaker 43.Abnormal overload electric current is in circuit caused by excessive load, short circuit etc.
During flowing, breaker 43 blocks the supply of electric power from battery 30.Breaker 43 includes the switch that can be operated by rider.When
When electric bicycle 1 is not used for a long time, it can cause to close the supply of electric power from battery 30 with closing switch.
The operation of each of the part for operating and also controlling electric bicycle 1 of the control motor 20 of MCU 42.MCU
42 include microcomputer, the memory for storing computer program etc., wherein, computer program defines control electric bicycle 1
Each part operation the step of.MCU 42 also includes electronic unit, and it controls the behaviour of each part of electric bicycle 1
Make.
MCU 42 includes the terminal group 40 from external reception information.Terminal group 40 can be referred to as " interface ".MCU 42 is passed through
Obtained respectively on magnitude of voltage, current value and temperature from voltmeter 60, ammeter 61 and temperature sensor 62 by terminal group 40
Information.Voltmeter 60 measures the value (magnitude of voltage) of the voltage at the two ends of battery 30.Ammeter 61 is measured to flow out from battery 30
Electric current value (current value).Temperature sensor 62 measures the temperature of battery 30.
DC/DC converters 44, which are located at, reduces the output electricity of battery 30 on the circuit between battery 30 and above-mentioned electric part
Press and export produced voltage.For example, the 60V of battery 30 output voltage reduction is arrived 12V by DC/DC converters 44, and
And by 12V voltage output to electric part.The output voltage of the monitoring DC/DC of MCU 42 converters 44.When DC/DC converters 44
Output voltage has caused by failure of DC/DC converters 44 etc. during exceptional value, and MCU 42 closes relay switch 48 so that
The output voltage of battery 30 is not fed to DC/DC converters 44.When DC/DC converters 44 break down, block to electric part
Supply of electric power so that prevent with high-tension electric current flowing to the electric part operated under low-voltage (for example, 12V).
Battery 30 is charged using charging slot 45.The connector of external charger is connected to charging slot 45, thus will
Electric power is fed to battery 30 and battery 30 is charged.Charging slot 45 can be provided with what is prevented rainwater or dust entrance or leak electricity
Cover.In this example embodiment, the charging of battery 30 is controlled by MCU 42.Diode 47 is set between battery 30 and charging slot 45, and
And prevent charging when electric current backflow or prevent from charging slot 45 to outside leak electricity.
Alarm 46 is burglar alarm, and is started when electric bicycle 1 is parked.It is (all when detecting anomalous event
Such as vibrate) when, alarm 46 exports sound and/or light this anomalous event is informed to the region around electric bicycle 1.
Fig. 3 schematically shows the outward appearance of instrument pack 55.Instrument pack 55 can be broadly divided into two parts.That is,
Instrument pack 55 includes speed display unit 70 and residual capacity of battery display unit 80.
Speed display unit 70 receives velocity information and pointer 72 is moved to and as the speed indicated by velocity information
Corresponding position, thus shows the present speed of vehicle.
Residual capacity of battery display unit 80 receive the surplus information that is produced by MCU 42 and by pointer 82 be moved to
As the corresponding position of the amount indicated by surplus information, the amount or ratio for the electric energy accumulated in battery 30 are thus shown in.Typically
Ground, when pointer 82 points to " H ", surplus is 100%；And when pointer 82 points to " L ", surplus is 0%.When pointer 82 refers to
When arriving the position in the middle of " L " to " H " on quadrant, surplus is 50%.
Fig. 4 schematically shows main from battery 30 to the information flow of instrument pack 55.MCU 42 includes interface 40, processing
Device circuit 68 and memory 69.
MCU 42 obtains magnitude of voltage, current value and the temperature of battery 30 via interface 40.MCU 42 by following processes by
The value of acquisition produces surplus information.Following all processes (being generally a series of processes shown in flow charts) can be retouched
State as computer program.This computer program is stored in memory 69 and performed by processor circuit 68.MCU 42 is passed through
By another interface pulse signal proportional to the rotating speed of front-wheel 14, and velocity information is produced by pulse signal.
Fig. 5 shows the hardware configuration of instrument pack 55.Instrument pack 55 includes above-mentioned speed display unit 70 and battery is surplus
Surplus display unit 80, in addition to electromotor control circuit 84, motor drive circuit 86 and motor 78 and 88.
Electromotor control circuit 84 receives surplus information and velocity information from MCU 42, and will be with each type of letter
Cease corresponding pulse signal and be delivered to motor drive circuit 86.Motor drive circuit 86 controls the big of the electric current that will be flowed through
Small, phase etc. is with drive motor 78 and 88.Speed display unit 70 and residual capacity of battery display unit 80 are based respectively on from electricity
The electric current that motivation drive circuit 86 is supplied drives pointer 72 and 82.
In this embodiment, electromotor control circuit 84 and motor drive circuit 86 are used for common actuating speed display list
The motor 78 and the motor 88 of residual capacity of battery display unit 80 of member 70.This is example.Electromotor control circuit and electronic
Drive circuit can independently be set as motor 78 and residual capacity of battery display unit 80 for speed display unit 70
Each of electrical motors 88.It it is not absolutely necessary to use motor, and any other method can be used.
Now, the pointer control operation of the residual capacity of battery display unit 80 by description in this embodiment.
First, the general pointer control operation that description can be obtained traditionally, afterwards, will be described in this embodiment
Pointer control operation.Pointer control operation is typically MCU 42 operation.For the ease of explaining, by with reference to shown in figure 3
The pointer 82 of residual capacity of battery display unit 80.
Fig. 6 shows the pass between residual capacity of battery and battery voltage value in the pointer control operation that can traditionally obtain
System.Transversal line represents surplus, and longitudinal axis represents battery voltage value.
On residual capacity of battery, " 1.0 " indicate charging complete (battery is filled), and " 0.0 " indicates to have run out to be filled
State (dead battery) during electric energy.Digital each between " 1.0 " and " 0.0 " indicates that current power level is relative
In the ratio of the power level when battery is filled.Surplus is by obtaining, for example, the current voltage value of battery is true with working as
The ratio for determining the magnitude of voltage of battery when battery is filled is calculated.The computational methods are examples, and it is possible to be counted using other
Calculation method.
On the relation between the position of pointer 82 and Fig. 6, " 1.0 " and " 0.0 " in Fig. 6 respectively with residual capacity of battery
" H " and " L " (Fig. 3) of display unit 80 is corresponding.Numeral in figure 6 between " 1.0 " and " 0.0 " is aobvious with residual capacity of battery respectively
Show that the position that " H " on the quadrant of unit 80 is arrived between " L " is corresponding.
From fig. 6, it can be seen that even if surplus is reduced, pointer 82 also can significantly be swung.Such case be because
For battery magnitude of voltage because the temperature of battery, electric bicycle 1 are run when road load etc. and fluctuate.
Now, for example, the swing that the pointer 82 when surplus is L1, L2 and L3 will be discussed.As shown in FIG. 6, approximately
Ground, L1=0.48, L2=0.3, L3=0.08.
Fig. 7 schematically shows the hunting range of the pointer 82 when surplus is L1, L2 and L3.
When surplus is L1, pointer 82 is swung about between 0.5 and 1.0.When surplus is L2, pointer 82 is about
Swung between 0.26 and 1.0.Although in L1=0.48 and L2=0.3, pointer 82 in both cases still may be even
You indicate that battery has been filled.That is, even if surplus is half or less, pointer 82 still may indicate that battery is filled once in a while
It is full.
When surplus is L3, pointer 82 is swung about between 0.0 to 0.7.Due to L3=0.08, when sensing 0.7
During position, pointer 82 indicates the amount bigger than real surplus amount.
Using traditional structure, pointer is swung according to the actual voltage value of battery.Therefore, electricity is shown using simple structure
Pond surplus.However, as seen from above-mentioned example, the hunting range of pointer is very big.Therefore, rider needs to run necessarily
Duration is to grasp the center of beat of pointer scope, so as to understand surplus substantially.Further, since the hunting range of pointer
It is very big, so rider feels that the surplus of battery 30 quickly changes.For those reasons, there is the operation for improving pointer
The space of precision.
(embodiment 1)
Controlled using pointer in this embodiment, be that surplus sets multiple regions, also, be each of region
Set the higher limit for magnitude of voltage.It is equal to or less than the situation of higher limit in the current voltage value (actual voltage value) of battery 30
Under, electromotor control circuit 84 controls motor drive circuit 86 using actual voltage value.Compare, in the current of battery 30
In the case that magnitude of voltage (actual voltage value) is higher than higher limit, electromotor control circuit 84 SC service ceiling value controls motor to drive
Dynamic circuit 86.That is, actual voltage value for some reason exceed higher limit in the case of, electromotor control circuit 84 without using
Actual voltage value and SC service ceiling value control motor drive circuit 86.Therefore, motor drive circuit 86 does not drive pointer
82 cause pointer 82 to point to the value equal to or higher than higher limit.
Fig. 8 is shown in the case where setting six regions for surplus and being each region setting higher limit, in electricity
The figure of relation between pond surplus and pointer magnitude of voltage.Border between zones is illustrated by the broken lines, also, is shown on the diagram
Regional number.
" pointer magnitude of voltage " is the position directly corresponding magnitude of voltage with pointer 82 and obtained by following processes." pointer
Magnitude of voltage " is not only the actual voltage value of battery 30 as shown in FIG. 6, but also is in the actual voltage value in region etc.
In or higher than the value that is restricted by higher limit in the case of higher limit.Therefore, pointer 82 is not directed to be higher than position corresponding with higher limit
The position put.As surplus is reduced, switch by the signified region of pointer 82, and set the upper limit for switching rear region
Value.
As the situation in Fig. 6, the swing of the pointer 82 when surplus is L1, L2 and L3 will be discussed.Fig. 9 is schematic
Ground shows the hunting range of the pointer 82 when surplus is L1, L2 and L3.Different from Fig. 7, the hunting range of pointer 82 is pre-
Determine in scope.For example, when surplus is L2, hunting range in fig .9 is less than hunting range in the figure 7.Therefore, it is to avoid
Although surplus is reduced to about half, and pointer 82 nevertheless indicates that situation of the surplus close to 100%.
Now, for example, with reference to Fig. 8, the border between region 5 and region 4 will be noted.Waveform in region 5 is more
The magnitude of voltage less than higher limit is more often shown at close to the position on the border in region 4.Therefore, the swing of pointer 82 is removed
Restricted by higher limit, pointer 82 more often points to the position for representing lower surplus.The access areas 4 in region 5
Section pointer 82 is shown in position corresponding with higher limit and indicates to swing between the position of lower surplus.
Now, it will be described in the embodiment.
In this embodiment, three or more regions are defined according to the charging ratio of battery 30.In example below, there is six
Individual region.
When vehicle starts running, it is first determined region.At this point, further defining current region.Afterwards, with
The electric energy accumulated in battery 30 is consumed, and switches current region.Usually, as vehicle is run, can by current region from
Low area corresponding with low charging ratio is switched to compared with the corresponding high region of high charge ratio.
In example below, the region that is determined when vehicle starts running will be described and how to be cut with the consumption of electric energy
Change current region.
Figure 10 A show form 100, and it provides six regions determined when vehicle starts running and defines each area
The condition in domain.Defined by residual capacity of battery in each region.Surplus can be determined by open-circuit voltage." open-circuit voltage " is not negative
The voltage of load, i.e. the voltage when being in poised state in the inside of battery 30.In this embodiment, as starting vehicle
The virtual voltage of the battery 30 measured immediately afterwards, obtains open-circuit voltage.Figure 10 B are shown schematically between region and surplus
Relation.
In Figure 10 A and Figure 10 B, in two boundary values in each region, relatively low boundary value is not included in the region
In.For example, in the case where surplus is 70% or less and greater than 45%, i.e. in open-circuit voltage be V5 or smaller and to be more than
In the case of V4, surplus is categorized as region 4.In the case where surplus is 45%, surplus is categorized as region 3.
Now, the region handoff procedure when vehicle is run will be described.
Figure 11 A show the form 101-1 for region handoff procedure when vehicle is run.
Figure 101-1 shows to be used to determine whether Zone switched region switching magnitude of voltage Vch.In form 101-1
Left column, i.e. region (X+1) → (X) (X：0 to 5 integer) indicating area (X+1) be switched to region (X).When battery 30
Actual voltage value becomes the region switching magnitude of voltage Vch of current region or more hour, Zone switched.In such a way, can be with base
Determine whether in current region and actual voltage value Zone switched.
Above-mentioned actual voltage value is influenceed by actual current value level used in battery 30.And hence it is also possible to by examining
Current value is considered Zone switched to determine whether, so as to improve the performance accuracy of pointer 82.
Figure 11 B show the form 101-2 for region handoff procedure when vehicle is run.
In this embodiment, current region is determined by using magnitude of voltage and current value.Form 101-2 shows to work as electric current
When being worth for A1, A2, A3 and A4, Zone switched residing magnitude of voltage (region switching magnitude of voltage).
It is now assumed that for example, current region is 5, current value is A1, also, magnitude of voltage is V.In this case, it is based on
The value V51 of current region and current value reference block 101a.As V ＞ V51, not Zone switched 5.As V≤V51, region 5 is cut
Change to region 4.In another example, it is assumed that current region is 2, current value is A3, also, magnitude of voltage is V.In such case
Under, the value V23 based on current region and current value reference block 101b.As V ＞ V23, not Zone switched 2., will as V≤V23
Region 2 is switched to region 1.
In such a way, it can be determined whether based on current region, current value and magnitude of voltage Zone switched.
It should be noted that current value consecutive variations and it is possible thereby to be except specific shown in the table 101-2 in Figure 11 B
Value beyond value.Hereinafter, by describe pair can consecutive variations current value measurement.
One in measurement, in the case of not describing actual voltage value in form 101-2, using in form 101-
The relation between at least two current values and actual current value described in 2.More specifically, by for at least two current values
At least two higher limits of corresponding voltage calculate the higher limit for voltage corresponding with actual current value.Reference table
101-2, provides two current values At1 and At2 closest to actual current value Ar.It is assumed that At1 ＜ Ar ＜ At2.By using with
Current value At1 corresponding magnitude of voltage Vt1 and magnitude of voltage Vt2 corresponding with current value At2, can be by having selected expression formula to obtain requirement
Magnitude of voltage Vr：
(At2-Ar)：(Ar-At1)=(Vt2-Vr)：(Vr-Vr1)
According to another measurement, group of functions is obtained by expanding form 101-2 in advance.
Figure 12 shows group of functions 102, and it can be used for region handoff procedure when vehicle is run.Figure 12 shows 5 lines.Root
According to Figure 11 B description, from the top to the bottom, 5 lines define with " 5 → region of region 4 ", " 4 → region of region 3 ", " region 3 →
Region 2 ", " 2 → region of region 1 " and " the corresponding region switching magnitude of voltage Vch in 1 → region of region 0 ".Specifically, 5 lines refer to
Show lower array function.
Solid line：It is used to determine whether that the region that region 5 has been switched into region 4 switches magnitude of voltage Vch function
Fine dotted line：It is used to determine whether that the region that region 4 has been switched into region 3 switches magnitude of voltage Vch function
Thick dashed line：It is used to determine whether that the region that region 3 has been switched into region 2 switches magnitude of voltage Vch function
Single dotted broken line：It is used to determine whether that the region that region 2 has been switched into region 1 switches magnitude of voltage Vch function
Double dot dash line：It is used to determine whether that the region that region 1 has been switched into region 0 switches magnitude of voltage Vch function
In group of functions 102 corresponding with current value A1 to A4, black circles ("●") are shown.These black circles are with scheming
Value in 11B form 101-2 is corresponding.In order to which form 101-2 is expanded into function, obtained by interpolation in form 101-2
Value between value.Now, it should be noted that four black circles on uppermost solid line in fig. 12.Current value A1 and A2 it
Between region switching magnitude of voltage by switching magnitude of voltage V51 to the region for current value A1 and region for current value A2 is cut
Magnitude of voltage V52 linear interpolations are changed to obtain.In this example embodiment, it is contemplated that the coordinate system for current value A and magnitude of voltage V.Even
The straight line for connecing coordinate pair (A1, V51) and coordinate pair (A2, V52) is the region switching voltage being defined between current value A1 and A2
Value Vch function.The region obtained by roughly the same mode between current value A2 and A3 switches magnitude of voltage Vch and in electricity
Region switching magnitude of voltage Vch between flow valuve A3 and A4.Uppermost line in fig. 12 is obtained by this interpolation.With substantially phase
Same mode obtains remaining four lines.
In this embodiment, for following reasons, it is flat line setting to be turned between current value A3 and A4.In electricity
Relatively large electric current is consumed between flow valuve A3 and A4, also, the consumption of this high current is temporary transient and will not continuously used
Make actual Free Region.
The profile for indicating the function that region in fig. 12 switches magnitude of voltage is example, and any other can be used bent
Line.For example, linear interpolation is example.Alternately, curve interpolation can be carried out, and the wheel partly or entirely bent can be used
It is wide.The scope of current value can be defined based on the current drain of the electric installation on vehicle.Function may be considered association
The numerical expression or form of corresponding with the accuracy of detection of ammeter 61 current value and magnitude of voltage.In this manual, can be with
Each of form 101-2 and group of functions 102 are referred to as " current/voltage figure ".As described above, in this manual, mainly
Describe the embodiment using group of functions 102.Therefore, hereinafter, expression " current/voltage Figure 102 ", and the expression will be used
Refer in group of functions 102 function part or all.
In this embodiment it is possible to make current/voltage figure as shown in Figure 12 so that based on it is assumed that in scope
Any current value and current region setting regions switching magnitude of voltage Vch.
It will now be described and process is shown by the residual capacity of battery carried out of MCU 42.In example below, MCU 42 is retouched
State into the critical piece for carrying out the process.More specifically, as shown in FIG. 4, the critical piece for carrying out the process is to perform to deposit
Store up the processor circuit 68 of the computer program on memory 69.
Figure 13 is the flow chart for showing the step of residual capacity of battery shows process.
In step sl, MCU 42 obtains the magnitude of voltage measured when opening main switch from voltmeter 60 (Fig. 2).As above institute
State, the magnitude of voltage is open-circuit voltage values.
In step s 2, form of the references of MCU 42 shown in Figure 10 A is with according to acquired actual voltage value determination
The region of the surplus of battery 30.In view of the fluctuation of acquired actual voltage value, if every time only with reference to actual voltage value,
Display precision may then be reduced.Therefore, actual voltage value was continuously acquired in 30 to 40 seconds, also, in actual voltage value and phase
With region it is corresponding in the case of, the region may be used as the region of the surplus of battery 30.
In step s3, MCU 42 enters line pointer magnitude of voltage determination process according to the region of surplus.In following Figure 14 and
The process is shown in Figure 15.After line pointer magnitude of voltage determination process is entered, when vehicle is run acquired magnitude of voltage by with
In being carried out continuously step S2 and S3.That is, magnitude of voltage when being run in step s 2 according to vehicle determines region, also, in step
Line pointer magnitude of voltage determination process is entered based on the region in rapid S3.
Figure 14 is the flow chart for the detailed step for showing pointer magnitude of voltage determination process.Figure 14 is shown not Zone switched
In the case of particular step, i.e. particular step in a particular area.
Before the description as described in Figure 14 is provided, the term and symbol explained below used.
" actual voltage value V "：The current voltage value obtained from voltmeter 60 (Fig. 2).
" actual current value I "：The present current value obtained from ammeter 61 (Fig. 2).
" benchmark magnitude of voltage Vref "：Obtained when carrying out the process by replacing region switching magnitude of voltage Vch
Variable.Correspondingly setting regions switches magnitude of voltage Vch with the region of the surplus of defined battery 30 when carrying out the process.
" pointer magnitude of voltage Vm "：As battery 30 current residual amount be used for drive residual capacity of battery display unit 80
The magnitude of voltage of the pointer 82 of (Fig. 3).
“←”：Represent the symbol substituted into.For example, " A ← B " represents B value substituting into A.
In step s 11, MCU 42 determines whether current region is region 0.When current region is region 0, i.e. work as electricity
When pond 30 is in electric discharge halted state, the process proceeds to step S12.When current region is the region in addition to region 0,
The process proceeds to step S13.
In step s 12, steady state value Vconst is substituted into pointer magnitude of voltage Vm by MCU 42.Steady state value Vconst is, for example,
Magnitude of voltage corresponding with " L " in Fig. 3, it is corresponding to for 0 surplus.
In step s 13, MCU 42 is according to region setting electric current/voltage pattern 102 of surplus.Term " setting " refers to MCU
Function corresponding with the region of current residual amount in group of functions 102 shown in fig. 12 is read memory (not shown) by 42
In.For example, when current region is region 5, MCU 42 reads function (numerical expression at uppermost position in fig. 12
Or form).
In step S14, MCU 42 obtains actual voltage value V and actual current value I.
In step S15,42 reference currents of MCU/voltage pattern 102 is with regulation region switching electricity corresponding with current region
Pressure value Vch and actual current value I.
In step s 16, the region at this point is switched magnitude of voltage Vch substitution benchmark magnitudes of voltage by MCU 42
In Vref.
In step S17, MCU 42 determines whether benchmark magnitude of voltage Vref is actual voltage value V or smaller value.
In the case that benchmark magnitude of voltage Vref is not actual voltage value or smaller value, the process proceeds to step S18.In relatively base
In the case that quasi- magnitude of voltage Vref is actual voltage value or smaller value, the process proceeds to step S19.
In step S18, actual voltage value V is substituted into pointer magnitude of voltage Vm by MCU 42.
In step S19, benchmark magnitude of voltage Vref is substituted into pointer magnitude of voltage Vm by MCU 42.
In step S20, the output pointer magnitude of voltage Vm of MCU 42 are used as surplus information.The surplus information transmission is arrived
Instrument pack 55 and the pointer 82 for driving residual capacity of battery display unit 80.
A series of procedural representations in step S17, S19 and 20 are used for the higher limit of the hunting range of pointer 82 not by reality
Border magnitude of voltage V limitation, but limited by the benchmark magnitude of voltage Vref lower than actual voltage value V.Actual voltage value V
It may be influenceed by road load etc. and be therefore probably bigger than magnitude of voltage corresponding with the real surplus amount of battery 30
Value.Therefore, magnitude of voltage Vch (=benchmark electricity is switched using the region determined by region corresponding with current residual amount
Pressure value Vref) rather than actual voltage value V, also, set it to pointer magnitude of voltage Vm.Therefore, it is to avoid as shown in FIG. 7
The pointer 82 although surplus is L2 (about 30%) indicate the state that has been filled of battery 30.The hunting range quilt of pointer 82
It is limited to the scope of L2 as shown in FIG. 9.
Now, it will describe in the case of Zone switched, pointer magnitude of voltage Vm determination process.
Figure 15 is shown in the case of Zone switched, the flow chart of the detailed step of pointer magnitude of voltage Vm determination process.
Figure 15 shows the detailed process of step S3 in fig. 13, and it is possible to for replacing the flow chart in Figure 14.With in fig. 14
Flow chart it is different, the flow chart in Figure 15 includes step S21.
In the step s 21, MCU 42 determines whether Zone switched.In the case of Zone switched, the process
Proceed to step S13, also, when not Zone switched, the process proceeds to step S17.
Step S21 process will be described in further detail.It is assumed for convenience of explanation that there are two or more regions.
In step S1 and S2 in fig. 13, MCU 42 determines prime area.When it is determined that during prime area, without region
Switching.Therefore, MCU 42 carries out step S17 after Figure 15 step S21.Then, the progress of MCU 42 step S18 or S19 go forward side by side
Row step S20.Therefore, the step of circulation is completed, and the step S2 that the process is returned in Figure 13.
When carrying out step S2 in second circulation, MCU 42 obtains actual voltage value V and set according to actual voltage value V
The region of the surplus of battery 30.Currently assume and region is switched to the region of smaller one.
When carrying out step S21 in second circulation, MCU 42 carries out step S13 to S16.In such as step S13,
MCU 42 sets current/voltage Figure 102 corresponding with switching rear region.In step s 16, MCU 42 is by benchmark magnitude of voltage
Vref, which updates, arrives region switching magnitude of voltage Vch corresponding with switching rear region.Region switching magnitude of voltage Vch after switching is less than it
Preceding region switching magnitude of voltage Vch.When Zone switched every time, benchmark magnitude of voltage Vref is set as more low value.Therefore, such as
It is shown in fig. 8, with region to be switched to lower region, higher limit is reduced step by step.By this way, limit pointer 82
Hunting range.
In this embodiment, actual current value and actual voltage value are used for setting for pointer 82 by simple process
Hunting range higher limit.Therefore, the display of residual capacity of battery is with relatively small processing load and higher precision.
(embodiment 2)
In embodiment 1, when Zone switched, change region corresponding with higher limit immediately and switch magnitude of voltage Vch, because
This, hunting range is restricted to shape shown in fig. 8.This control is by the way that the region after switching is switched into magnitude of voltage
Vch is set as benchmark magnitude of voltage Vref and switches magnitude of voltage Vch as higher limit to realize using the region after switching
's.
In this embodiment, benchmark magnitude of voltage Vref does not update to the region switching magnitude of voltage after switching immediately
Vch.On the contrary, gradually reducing benchmark magnitude of voltage Vref in the same area.
Figure 16 shows in this embodiment, the relation between the position of residual capacity of battery and pointer 82.As can be seen that
In one region, the higher limit for hunting range is reduced step by step.
Figure 17 is the zoomed-in view of Figure 16 part surrounded by double dot dash line.
As can be seen that higher limit from region 6 region switch magnitude of voltage Vch in the way of reducing predetermined value α every time by
Step it is reduced to the region switching magnitude of voltage Vch in region 5.In this embodiment, predetermined value α can be defined in such as 0.5 and arrive
In 1V scope.
The variable quantity of the surplus when higher limit reduces predetermined value α is indicated by " B "." B " is pre- with following electric energy
Determine consumption β corresponding.
As seen from the example in Figure 17, the accumulated current value (consumption of electric energy) per primary cell 30 exceedes predetermined ginseng
When examining value, MCU 42 gradually reduces the region worked as higher limit and switches magnitude of voltage.
Hereinafter, with reference to Figure 18, it will be described in the process of the operation for realizing Figure 17.
Figure 18 is the flow chart for the detailed step for showing pointer magnitude of voltage Vm determination process in this embodiment.Figure 18 shows
Go out the alternative steps for a part for shown step in fig .15 (by the part of dotted line).For another part, step
Suddenly it is identical with shown in Figure 15.In example below, step S31 to S39 will be described.Herein, will not describe with Figure 15
Those processes of process identical.It may be referred to the description to Figure 15.
Before the description as described in Figure 18 is provided, the following new term used will be described.
Accumulated current value Aacc：The accumulated value of the magnitude of current flowed out from battery 30.In this embodiment, the object of accumulation is
The magnitude of current.This is example.The object of accumulation is not limited to the magnitude of current, and can be the consumption for the electric energy that instruction is accumulated in battery 30
Any physical quantity of amount.For example, the object of accumulation can be the variable quantity of range ability, run time or actual voltage value.
Flag F：Indicate whether the mark of accumulated current amount.In this embodiment, when the value of flag F is 1, accumulated current
Amount, also, when the value of flag F is 0, not accumulated current amount.
("Yes" in step S21) carries out step S31 and S32 when Zone switched.In step S31, MCU 42 is by 1 generation
Enter flag F, also, also substitute into accumulated current value Aacc by 0.Therefore, the accumulation of current value is started.Afterwards, step S13 is carried out extremely
S15 and S32.
In step s 32, MCU 42 will be set as newly by subtracting the value that α obtains from current benchmark magnitude of voltage Vref
Benchmark magnitude of voltage Vref.The process is corresponding to the procedure below in such as Figure 17：Region switching magnitude of voltage in region 6
Vch is switched to low α magnitude of voltage by a step.Afterwards, the process proceeds to step S34.
By contrast, in the case of MCU 42 determines that region is unchanged, the process proceeds to step S33.
In step S33, MCU 42 determines whether the value of flag F is 1.In the case where the value of flag F is 1, the process
Proceed to step S34.In the case where the value of flag F is not 1, the process proceeds to step S17 (Figure 15).
In step S34, MCU 42 updates the current value Aacc of accumulation.More specifically, MCU 42 increases existing accumulation
Current value Aacc and difference current amount, and the increase result is substituted into accumulated current value Aacc.Obtain " difference current amount "
To be used as the magnitude of current for updating after accumulated current value Aacc and being consumed before carrying out step S34 in last time.
In step s 35, MCU 42 determines whether the current value Aacc of accumulation has reached scheduled current amount β or bigger
Value.In the case where the current value Aacc of accumulation has reached scheduled current amount β or greater value, the process proceeds to step S36.
Otherwise, the process proceeds to step S17 (Figure 15).In this embodiment, predetermined magnitude of current β is for example, 0.5 to 1.0Ah.Such as
Shown in fig. 17, the width that magnitude of current β is respectively provided with each of height α small stair to each is proportional.
Reach that the accumulated current amount Aacc of scheduled current amount β or greater value represents to reduce a step in fig. 17.
Accordingly, it would be desirable to accumulated current amount again.
Therefore, in step S36, the current value Aacc that MCU 42 substitutes into accumulation by 0.That is, MCU 42 is by the electric current of accumulation
Value Aacc is reset.In step S37, MCU 42 from current benchmark magnitude of voltage Vref by by subtracting the value setting that α is obtained
For new benchmark magnitude of voltage Vref.
In step S38, MCU 42 determines whether new benchmark magnitude of voltage Vref is region for current region
Switch magnitude of voltage Vch or smaller value.The process is carried out to ensure that new benchmark magnitude of voltage Vref will not become region switching
Magnitude of voltage Vch subtracts the smaller value after α.It is the region switching electricity for current region in new benchmark magnitude of voltage Vref
In the case of pressure value Vch or smaller value, the process proceeds to step S39.Otherwise, the process proceeds to step S17 (Figure 15).
In step S39, region switching magnitude of voltage Vch is set as benchmark magnitude of voltage Vref by MCU 42, and will mark
Note F is set as 0.In example in fig. 17, benchmark magnitude of voltage Vref is set as the " Vch " in region 5 by the procedural representation.
After step S39, the process proceeds to step S17 (Figure 15).
When the current value Aacc accumulated every time reaches scheduled current amount β, benchmark magnitude of voltage Vref is reduced α to reduce
Higher limit.Compared with the example in embodiment 1, rider preferably recognizes the surplus of battery 30 gradually by pointer 82
Reduction, and the display of the surplus of battery 30 has higher precision.
Figure 19 shows pointer magnitude of voltage Vm shown in figure 16 another example.In figure 16, in region 6, electricity
The actual voltage value in pond 30 is consistently maximum pointer magnitude of voltage Vm.This shows that pointer 82 consistently points to " H " in figure 3.
In region 5, pointer magnitude of voltage Vm remains identical also relative to region switching magnitude of voltage Vch.Therefore, pointer 82 points to identical
Position.
However, this state is only example.As shown in Figure 19, all pointer magnitude of voltage Vm may be in all regions
It is middle to fluctuate.Example in Figure 19 represents that the fluctuation of actual voltage value is relatively large.For example it is assumed that can select will be preferential
Consider that the drive pattern (being referred to as this pattern " power mode ") of output (electric power) is used as vehicle driving patterns.In power mode
In, by the state used, the change of power consumption is relatively large.In the case where vehicle is run with power mode, actual electricity
Pressure value V is less than benchmark magnitude of voltage Vref and is used as pointer magnitude of voltage Vm.Consequently, it can happen shown in Figure 19
State.
By contrast, the pattern (is referred to as by " ecological mould with the drive pattern for reducing power consumption in suppression output (electric power)
Formula ") in, actual voltage value V is benchmark magnitude of voltage Vref or the duration of much higher value is very long.Therefore, more often will
Benchmark magnitude of voltage Vref is used as pointer magnitude of voltage Vm.In this case, pointer 82 can be moved only when Zone switched
And may not in a region or cross two or more regions swing.
It should be noted that under any circumstance, when in all regions actual voltage value V be benchmark magnitude of voltage Vref or
During greater value, benchmark magnitude of voltage Vref is used as pointer magnitude of voltage Vm and higher limit is thus set.
It is in the same manner as in Example 1, in this embodiment, actual current value and actual voltage value are used by simple process
To set the higher limit of the hunting range for pointer 82.Therefore, there is relatively small processing to bear for the display of residual capacity of battery
Carry and higher precision.
(embodiment 3)
In Examples 1 and 2, by using form 101-1 (Figure 11 A), form 101-2 (Figure 11 B) and group of functions 102
(Figure 12) carrys out setting regions switching magnitude of voltage Vch.Wherein, form 101-2 and group of functions 102 are expressed as and current value and voltage
Value associated form or numerical expression.In this embodiment, in addition to current value and magnitude of voltage, determined always according to temperature
Region switching magnitude of voltage Vch.That is, the higher limit for voltage is changed according to temperature.
Figure 20 shows the voltage curve of the temperature change according to battery 30.In fig. 20, temperature is set as 0 DEG C and 20
DEG C, also, voltage change when vehicle is run at these tem-peratures represents by envelope curve.It can be observed from fig. 20 that when temperature
When spending relatively low, the pressure drop when vehicle is run is larger.This species diversity is the battery changed by the temperature according to battery 30
Caused by 30 internal resistance.
Figure 21 A show group of functions 202A, and when the temperature of battery 30 is 0 DEG C, it can be used for region handoff procedure.Figure 21 B
Group of functions 202B is shown, it can be used for region handoff procedure when the temperature of battery 30 is 25 DEG C.Two group of functions and Figure 12
Accordingly.
Figure 21 A and Figure 21 B show two kinds of group of functions at a certain temperature.Therefore, it is possible to use both classes
The group of functions of type produces group of functions at ambient temperature.In embodiment 1, row interpolation is entered for any current value.At this
In embodiment, the example for arbitrary temp will be described.As simplest example, the method for usage rate will be described.
Figure 22 shows the concept of the method for producing the function for arbitrary temp by the function for two temperature.It is existing
, it is intended to obtain the group of functions for Q DEG C.In example below, it will describe to be used for method of the generation for the function in region 5.
Use the group of functions 202A come from Figure 21 A function 202A-5 and the group of functions 202B come from Figure 21 B letter
Number 202B-5 is used as the function at Q DEG C.
Now, it is intended to obtain the region switching magnitude of voltage Vch_C for Q DEG C and current value A0.By using ratio under
Row expression formula obtains region switching magnitude of voltage Vch_C：
Vch_C=(Vch_A)+Q { (Vch_B)-(Vch_A) }/25.
In the expression formula, (Vch_A) represents that the region for electric current A0 at function 202-A switches magnitude of voltage.(Vch_
B) represent that the region for electric current A0 at function 202-B switches magnitude of voltage.
According to above-mentioned expression formula, MCU 42 can obtain the temperature value of battery 30 from temperature sensor 62, and from electric current
Table 61 obtains actual current value, so as to be obtained by the group of functions of at least two types prepared for the temperature and actual current
The region switching magnitude of voltage of value.It can be obtained and storage region switching voltage for all temperature and all current values in advance
Value.Or, switching magnitude of voltage in region can be obtained by calculating based on temperature and actual current value every time.In latter event
Under, it is only necessary to ensure memory span to store the group of functions of at least two types.Above-mentioned calculating is relatively easy, and calculates negative
Carry and little.It is therefore prevented that the cost increase for calculator resource.It should be noted that in both cases, can be by function
Group is referred to as " current/voltage/hygrogram ", as in Examples 1 and 2.
After the region switching magnitude of voltage for arbitrary temp and current value is obtained, MCU 42 can be carried out in embodiment 1
Or the process in 2 is to show the surplus of battery 30.This process will not be described herein.
In this embodiment, it is used for by simple process using actual current value, actual voltage value and temperature to set
The higher limit of the hunting range of pointer 82.Therefore, the display of residual capacity of battery is loaded and higher with relatively small processing
Precision.
Have been described above embodiment 1,2 and 3.Variation explained below.
(variation)
Figure 23 is shown in first variation, and the example of the structure of process is shown for residual capacity of battery.In order to more preferable
Ground understands, those elements for having identical function with the element in Fig. 4 are presented with like reference characters.
In Figure 23 example, control the processor circuit in circuit 120 (being located in instrument pack 55) (micro- by instrument
Controller or microcomputer) 68 come replace MCU 42 carry out residual capacity of battery show process.As long as this shows in Examples 1 and 2
Middle acquisition current value and magnitude of voltage, as long as and further obtain temperature value in embodiment 3, then carry out the process afterwards
Main element is just not limited to MCU 42.
In fig 23, current value, magnitude of voltage and temperature value are delivered in instrument controls circuit 120 via MCU 42
Interface 40.It it is not absolutely necessary to carry out the transmission using MCU 42.
Using Figure 23 structure, instrument pack 55 (it can be distributed as commodity) can be only used only to realize according to this
The residual capacity of battery of invention shows process.
Figure 24 is shown in second variation, and the example of the structure of process is shown for residual capacity of battery.In the deformation
In example, instrument pack 55 includes image generation circuit 130 and display device 140.
In above-described embodiment and example, pointer 82 is the part of physical configuration.Shown instrument pack 55 in fig. 24
In, pointer 82 is included in display device 140 to be used as the image object produced by image generation circuit 130.For example, Fig. 3
It is displayed as the image of instrument pack 55.Pointer 72 and 82 is the image object according to speed and the movement of the surplus of battery 30.
Display device 140 is, for example, using the display device of liquid crystal, organic EL or electronic paper display panel.
In the 3rd variation, it can be provided for lower region being switched to the condition of upper zone." from relatively low area
Domain switches to upper zone " refer to, for example, being switched to region 5 from region 4.
As embodiment 1 start to briefly describe, when being carried out for example by regeneration or to battery 30 using charging slot 45
During charging, actual voltage value can be recovered.The example of this recovery is different from caused by temperature, road load of battery 30 etc.
Fluctuation.However, if MCU 42 determines each of such case, processing load will increase.
Therefore, MCU 42 can be limited from lower region and is switched to upper zone, unless met predetermined condition.Predetermined condition
It is probably, as long as example, closing main switch 49 (Fig. 2).Close main switch 49 in the case of, MCU 42 can will currently
Region is switched to upper zone.
The present invention is displayed for the residual capacity of battery in such as pointer type residual capacity of battery display unit.In this hair
In bright illustrative example, it can transmit the command value for residual capacity of battery to drive from the outside of residual capacity of battery display unit
Dynamic pointer, or residual capacity of battery can be obtained by residual capacity of battery display unit to drive pointer.
Although describing the present invention by reference to the preferred embodiments of the present invention, for those skilled in the art
For it is evident that can change in many ways disclosed invention and can use except it is described in detail above with
Outer many embodiments.Fallen into accordingly, it is intended to be covered by appended claims in the real spirit and scope of the present invention
All variations of the invention.
The application is based on the Japanese patent application No. No.2016-007077 submitted on January 18th, 2016, its whole
Content is incorporated herein by reference.
Claims (21)
1. one kind control circuit, it, which can be arranged on, includes on the vehicle of battery obtaining the electricity for indicating to accumulate in the battery
Can surplus surplus information and the surplus information of acquisition is exported to drive pointer continuous moving, the pointer
It is arranged in residual capacity of battery display unit, the control circuit includes：
Interface, it receives the information of the actual voltage value on the battery；With
Process circuit, it is every in three or more regions defined according to the amount for the electric energy accumulated in the battery
In one, the higher limit for voltage is set, also, is the higher limit or greater value in the actual voltage value of reception
In the case of, the higher limit is set as pointer magnitude of voltage and the surplus is obtained by using the pointer magnitude of voltage
Information.
2. control circuit according to claim 1, wherein, the process circuit by using the battery the reality
Magnitude of voltage carrys out regulation current region, also, is less than the institute that is set in the current region in the actual voltage value of reception
In the case of stating higher limit, the actual voltage value is set as the pointer magnitude of voltage.
3. control circuit according to claim 1 or 2, wherein, the process circuit is in three or more described regions
Each in set higher limit for the voltage according to actual current value changes.
4. control circuit according to claim 3, wherein, when the actual current value is relatively large, the processing electricity
Road sets the relatively small higher limit for the voltage in each of three or more described regions.
5. the control circuit according to claim 3 or 4, wherein, by using to be every in three or more described regions
One setting and the form or letter of relation between higher limit in the actual current value and for the voltage be shown
Number, the process circuit sets the higher limit for the voltage according to the actual current value changes.
6. control circuit according to claim 5, wherein, the process circuit is advised by using the actual voltage value
The fixed current region, also, do not described and the actual current in the form for the defined current region
In the case of being worth identical value, using between at least two current values and the actual current value described in the table
Relation, calculated by least two higher limits for the voltage corresponding with least two current value for it is current
The higher limit of the corresponding voltage of current value.
7. the control circuit according to any one of claim 3 to 6, wherein：
The interface also receives temperature value corresponding with the Current Temperatures of the battery；And
The process circuit is set in each of three or more described regions for according to the temperature value and described
The higher limit of the voltage of actual current value changes.
8. control circuit according to claim 7, wherein, when the temperature value is relatively low, the process circuit exists
The relatively small higher limit for the voltage is set in each of three or more described regions.
9. the control circuit according to claim 7 or 8, wherein, by using to be every in three or more described regions
One setting and show the actual current value and the current temperature value and for the voltage higher limit it
Between relation form or function, the process circuit sets the higher limit for the voltage, and the higher limit is worked as by described
What preceding current value and the current temperature value were obtained.
10. control circuit according to claim 9, wherein, the process circuit is come by using the actual voltage value
Provide the current region, also, do not describe in the form in for the defined current region with it is described current
Temperature value identical value and with the actual current value identical value in the case of, calculate with describe in the table at least
Two temperature values are corresponding, represent higher limit in the present current value and for the voltage between relation interpolation letter
Breath, and using from the relation between at least two current values and the present current value of the interpolation information acquisition by with
At least two higher limits of the corresponding voltage of at least two current value enter row interpolation and obtain being used for and the current electricity
The higher limit of the corresponding voltage of flow valuve.
11. the control circuit according to any one of claim 1 to 10, wherein：
The interface second receives actual voltage value and actual current value on the battery after predetermined lasting time
Information；And
The process circuit updates the current region by using the actual voltage value of second of reception, and
And, in the case where having switched the region, set the higher limit of the voltage corresponding with switching rear region.
12. control circuit according to claim 11, wherein, whenever the consumption of the electric energy of the battery exceedes predetermined base
During quasi- value, the process circuit gradually reduces the higher limit for the voltage.
13. control circuit according to claim 12, wherein, the consumption of the electric energy is by using the car
Range ability, the accumulated value of any one of the current consumption of the run time of the vehicle and the battery determines
's.
14. the control circuit according to any of claim 11 to 13, wherein, switching the situation in the region
Under, unless met predetermined condition, otherwise forbid being switched to the previous region.
15. control circuit according to claim 14, wherein, opened as long as the predetermined condition is the master for closing the vehicle
Pass.
16. a kind of residual capacity of battery display unit, it includes：
Control circuit according to any one of claim 1 to 15；
Pointer；With
Drive mechanism, it receives surplus information from the control circuit, also, makes the pointer based on the surplus information
Continuous moving.
17. a kind of vehicle, it includes：
Control circuit according to any one of claim 1 to 15；With
Residual capacity of battery display unit, it includes pointer and drive mechanism；
Wherein, the drive mechanism receives surplus information from the control circuit, also, makes institute based on the surplus information
State pointer continuous moving.
18. a kind of vehicle, it includes：
Residual capacity of battery display unit according to claim 16；
Battery；With
Motor, its can by the battery supplied driven by power.
19. vehicle according to claim 18, wherein, the battery is lead accumulator.
20. vehicle according to claim 19, wherein, the battery includes multiple battery blocks, each battery block energy
Enough accumulate electric energy.
21. the computer program that a kind of process circuit that can be included in control circuit is performed, the control circuit can
The surplus information of the surplus for the electric energy accumulated on the vehicle including battery with acquisition instruction in the battery is simultaneously
And the surplus information that output is obtained, to drive pointer continuous moving, the pointer is arranged on residual capacity of battery display unit
In, the computer program with the process circuit performs procedure below：
Process of the reception on the information of the actual voltage value of the battery；
Set in each of three or more regions defined according to the amount for the electric energy accumulated in the battery
Process for the higher limit of voltage；
In the case where the actual voltage value of reception is the higher limit or greater value, the higher limit is set as pointer
The process of magnitude of voltage；And
The process of the surplus information is obtained by using the pointer magnitude of voltage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-007077 | 2016-01-18 | ||
| JP2016007077A JP2017130993A (en) | 2016-01-18 | 2016-01-18 | Control circuit, battery residual amount display unit and vehicle having the control circuit, and computer program |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106976399A true CN106976399A (en) | 2017-07-25 |
Family
ID=59340785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033033.XA Withdrawn CN106976399A (en) | 2016-01-18 | 2017-01-17 | Control circuit, residual capacity of battery display unit, vehicle and computer program |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017130993A (en) |
| CN (1) | CN106976399A (en) |
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|---|---|---|---|---|
| JP2006275549A (en) * | 2005-03-28 | 2006-10-12 | Seiko Epson Corp | Information terminal and battery level calculation method |
| CN1979207A (en) * | 2005-11-02 | 2007-06-13 | 美国凹凸微系有限公司 | Battery fuel gauge circuit |
| CN101793946A (en) * | 2010-04-12 | 2010-08-04 | 无敌科技(西安)有限公司 | Method for realizing monotone change of battery power |
| CN102680897A (en) * | 2011-03-15 | 2012-09-19 | 联芯科技有限公司 | Battery capacity management method and device |
| CN204020589U (en) * | 2014-08-21 | 2014-12-17 | 河北御捷车业有限公司 | A kind of automobile cluster gauge |
| CN104535933A (en) * | 2014-12-26 | 2015-04-22 | 湖南森泰能源科技股份有限公司 | Battery remaining capacity measuring method and system |
-
2016
- 2016-01-18 JP JP2016007077A patent/JP2017130993A/en active Pending
-
2017
- 2017-01-17 CN CN201710033033.XA patent/CN106976399A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275549A (en) * | 2005-03-28 | 2006-10-12 | Seiko Epson Corp | Information terminal and battery level calculation method |
| CN1979207A (en) * | 2005-11-02 | 2007-06-13 | 美国凹凸微系有限公司 | Battery fuel gauge circuit |
| CN101793946A (en) * | 2010-04-12 | 2010-08-04 | 无敌科技(西安)有限公司 | Method for realizing monotone change of battery power |
| CN102680897A (en) * | 2011-03-15 | 2012-09-19 | 联芯科技有限公司 | Battery capacity management method and device |
| CN204020589U (en) * | 2014-08-21 | 2014-12-17 | 河北御捷车业有限公司 | A kind of automobile cluster gauge |
| CN104535933A (en) * | 2014-12-26 | 2015-04-22 | 湖南森泰能源科技股份有限公司 | Battery remaining capacity measuring method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017130993A (en) | 2017-07-27 |
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Application publication date: 20170725 |