CN105946605B - A kind of electric vehicle, power battery electric quantity managing method and management system - Google Patents
A kind of electric vehicle, power battery electric quantity managing method and management system Download PDFInfo
- Publication number
- CN105946605B CN105946605B CN201610288892.9A CN201610288892A CN105946605B CN 105946605 B CN105946605 B CN 105946605B CN 201610288892 A CN201610288892 A CN 201610288892A CN 105946605 B CN105946605 B CN 105946605B
- Authority
- CN
- China
- Prior art keywords
- power battery
- remaining capacity
- electric vehicle
- ratio
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000005611 electricity Effects 0.000 claims abstract description 47
- 230000007812 deficiency Effects 0.000 abstract description 5
- 238000007726 management method Methods 0.000 description 18
- 238000004378 air conditioning Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
- B60L2260/50—Control modes by future state prediction
- B60L2260/54—Energy consumption estimation
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
This application discloses a kind of electric vehicle, power battery electric quantity managing method and management system, wherein, the power battery electric quantity managing method includes：Obtain the remaining capacity of power battery；Calculate remaining capacity and the first ratio of the power battery total electricity；Judge whether the first ratio is more than default ratio, if it is, control power battery works in the normal mode, and return to the remaining capacity for obtaining power battery；If it is not, then control power battery is stopped and judges whether electric vehicle receives emergent instruction, if it is, control power battery is started to work in the emergency mode；The default ratio is more than zero；After electric vehicle restarts, the power battery is controlled to work in the normal mode.The power battery electric quantity managing method, which can be realized, to be avoided not noticing power battery remaining capacity deficiency due to driver, and causes the electric vehicle that can not drive to home fallback or can not drive to the purpose that charging station charges.
Description
Technical field
The present invention relates to electric vehicle field, more specifically to a kind of electric vehicle, power battery managing electric quantity side
Method and management system.
Background technology
In recent years, with the popularization of motor vehicles, the exhaust emissions of motor vehicles causes environment very big influence, haze
Become the common weather phenomenon in many cities, and haze can generate very detrimental effect to the physical condition of people.
Therefore the motor vehicles of exploitation more energy-saving and environmental protection have become the common recognition of various circles of society.Under this trend, electric vehicle with
Relatively low disposal of pollutants becomes the selection of substitution orthodox car.
The power battery of electric vehicle is its power resources, and the electric vehicle of mainstream can all set display to fill on instrument board
It puts, for showing the remaining capacity of the power battery, the electric vehicle when the remaining capacity that the display device is shown is zero
It can not travel.When electric vehicle driver does not notice power battery remaining capacity deficiency, it is possible to be present with because dynamic
The situation that power battery dump energy causes electric vehicle for zero and can not travel occurs, and if power battery remaining capacity is zero
When electric vehicle cast anchor on business district or highway, can cause the electric vehicle can not drive to home fallback or
Charging station is driven to charge, and electric vehicle is rested on business district or highway it is possible that can cause traffic congestion or
It knocks into the back and waits traffic accidents, jeopardize driver's personal and property safety.
Therefore, there is an urgent need for a kind of power battery electric quantity managing method, power battery is not noticed to avoid due to driver
Remaining capacity deficiency, and cause the electric vehicle that can not drive to home fallback or charging station progress can not be driven to
The situation of charging occurs.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of electric vehicle, power battery electric quantity managing method and pipes
Reason system, the power battery electric quantity managing method, which can be realized, to be avoided not noticing the remaining electricity of power battery due to driver
Amount deficiency, and cause the electric vehicle that can not drive to home fallback or can not drive to what charging station charged
Purpose.
To realize above-mentioned technical purpose, an embodiment of the present invention provides following technical solutions：
A kind of power battery electric quantity managing method, applied to electric vehicle, the electric vehicle includes power battery；It is described
Power battery electric quantity managing method includes：
Obtain the remaining capacity of the power battery；
Calculate the first ratio of the remaining capacity and the power battery total electricity；
Judge whether first ratio is more than default ratio, if it is, controlling the power battery in normal mode
Lower work, and return to the remaining capacity for obtaining the power battery；If it is not, then the power battery is controlled to be stopped and is sentenced
Whether the electric vehicle that breaks receives emergent instruction, if it is, the power battery is controlled to start work in the emergency mode
Make；The default ratio is more than zero；
After the electric vehicle restarts, the power battery is controlled to work in the normal mode.
Preferably, control the power battery work in the normal mode including：
The maximum of the power battery can be arranged to the peak power output of the power battery with output power；
Show the first remaining capacity ratio of the power battery；The first remaining capacity ratio is：
Wherein, n represents the first remaining capacity ratio；Q1Represent the remaining capacity；A represents the default ratio；Q
Represent the power battery total electricity.
Preferably, control the power battery start to work in the emergency mode including：
The maximum of the power battery can be arranged to limitation output power with output power；
Show the second remaining capacity ratio of the power battery；
Wherein, the second remaining capacity ratio is equal to first ratio；The limitation output power is the power
The product of battery peak power output and limit coefficient.
Preferably, the value range of the limit coefficient is 0.01-1, including endpoint value.
A kind of power battery power management system, applied to electric vehicle, the electric vehicle includes power battery；It is described
Power battery power management system includes：
Electricity acquiring unit, for obtaining the remaining capacity of the power battery；
Computing unit, for calculating the first ratio that the remaining capacity accounts for the power battery total electricity；
Judging unit, for judging whether first ratio is more than default ratio, if it is, by the first control unit
The power battery is controlled to work in the normal mode, and returns to the electricity acquiring unit；It is if it is not, then single by the second control
Member controls the power battery to be stopped and judge whether the electric vehicle receives emergent instruction, if it is, by the
Three control units control the power battery to start to work in the emergency mode；The default ratio is more than zero；
Reset cell after working as the electric vehicle restarting, controls power battery work in the normal mode
Make.
Preferably, first control unit is used to the maximum of the power battery can be arranged to described with output power
The peak power output of power battery；
And show the first remaining capacity ratio of the power battery；The first remaining capacity ratio is：
Wherein, n represents the first remaining capacity ratio；Q1Represent the remaining capacity；A represents the default ratio；Q
Represent the power battery total electricity.
Preferably, the 3rd control unit is used to the maximum of the power battery can be arranged to limit with output power
Output power；
And show the second remaining capacity ratio of the power battery；
Wherein, the second remaining capacity ratio is equal to first ratio；The limitation output power is the power
The product of battery peak power output and limit coefficient.
Preferably, the value range of the limit coefficient is 0.01-1, including endpoint value.
A kind of electric vehicle, including the power battery power management system described in any of the above-described embodiment.
It can be seen from the above technical proposal that an embodiment of the present invention provides a kind of electric vehicle, power battery electricity pipes
Reason method and management system；Wherein, the power battery electric quantity managing method is in the remaining capacity when the power battery and institute
When stating the first ratio of power battery total electricity less than or equal to the default ratio, the power battery is controlled to be stopped,
The electric vehicle can not travel at this time；If electric vehicle is in the danger zones such as business district highway or highway at this time
When, driver can send emergent instruction, after the electric vehicle receives the emergent instruction, control to the electric vehicle
The power battery start to work the electric automobile during traveling to home fallback in the emergency mode so as to driver or
Charging station is driven to charge.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow diagram for power battery electric quantity managing method that one embodiment of the present of invention provides；
Fig. 2 is a kind of structure diagram for power battery power management system that one embodiment of the present of invention provides.
Specific embodiment
As described in background, cause described electronic when driver does not notice power battery remaining capacity deficiency
When automobile can not drive to home fallback or drive to charging station and be charged, it is likely to result in traffic congestion or chases after
The traffic accidents such as tail jeopardize driver's personal and property safety.
In view of this, an embodiment of the present invention provides a kind of power battery electric quantity managing method, applied to electric vehicle, institute
Stating electric vehicle includes power battery；The power battery electric quantity managing method includes：
Obtain the remaining capacity of the power battery；
Judge whether first ratio is more than default ratio, if it is, controlling the power battery in normal mode
Lower work, and return to the remaining capacity for obtaining the power battery；If it is not, then the power battery is controlled to be stopped and is sentenced
Whether the electric vehicle that breaks receives emergent instruction, if it is, the power battery is controlled to start work in the emergency mode
Make；The default ratio is more than zero；
After the electric vehicle restarts, the power battery is controlled to work in the normal mode.
Correspondingly, the embodiment of the present invention additionally provides a kind of power battery power management system, applied to electric vehicle, institute
Stating electric vehicle includes power battery；The power battery power management system includes：
Electricity acquiring unit, for obtaining the remaining capacity of the power battery；
Computing unit, for calculating the first ratio that the remaining capacity accounts for the power battery total electricity；
Judging unit, for judging whether first ratio is more than default ratio, if it is, by the first control unit
The power battery is controlled to work in the normal mode, and returns to electricity acquiring unit；If it is not, then by the second control unit control
It makes the power battery to be stopped and judge whether the electric vehicle receives emergent instruction, if it is, by the 3rd control
Unit processed controls the power battery to start to work in the emergency mode；The default ratio is more than zero；
Reset cell after working as the electric vehicle restarting, controls power battery work in the normal mode
Make.
Correspondingly, the embodiment of the present invention additionally provides a kind of electric vehicle, the electric vehicle include it is at least one as above
State the power battery power management system described in embodiment.
It can be seen from the above technical proposal that an embodiment of the present invention provides a kind of electric vehicle, power battery electricity pipes
Reason method and management system；Wherein, the power battery electric quantity managing method is in the remaining capacity when the power battery and institute
When stating the first ratio of power battery total electricity less than or equal to the default ratio, the power battery is controlled to be stopped,
The electric vehicle can not travel at this time；If electric vehicle is in the danger zones such as business district highway or highway at this time
When, driver can send emergent instruction, after the electric vehicle receives the emergent instruction, control to the electric vehicle
The power battery start to work in the emergency mode so as to driver by the electric automobile during traveling fallback at home
Or it drives to charging station and charges.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
An embodiment of the present invention provides a kind of power battery electric quantity managing methods, applied to electric vehicle, the electronic vapour
Vehicle includes power battery；As shown in Figure 1, the power battery electric quantity managing method includes：
S101：Obtain the remaining capacity of the power battery.
It should be noted that it in one embodiment of the invention, is obtained by the battery management unit of the electric vehicle
Take the remaining capacity of the power battery；In another embodiment of the present invention, the whole of the electric vehicle can also be passed through
Vehicle controller obtains the remaining capacity of the power battery；It in yet another embodiment of the present invention, can also be by being built in
Processing chip in electric vehicle obtains the remaining capacity of the power battery.The present invention is to the residue of the acquisition power battery
The specific method of electricity does not limit, specifically depending on actual conditions.
S102：Calculate the first ratio of the remaining capacity and the power battery total electricity.
It should be noted that in one embodiment of the invention, pass through the battery management unit meter of the electric vehicle
Calculate the first ratio of the remaining capacity and the power battery total electricity；It in another embodiment of the present invention, can be with
The remaining capacity and the first ratio of the power battery total electricity are calculated by the entire car controller of the electric vehicle；
In another embodiment of the present invention, the remaining capacity and institute can also be calculated by being built in processing chip in electric vehicle
State the first ratio of power battery total electricity；The present invention is to calculating the first of the remaining capacity and the power battery total electricity
The specific method of ratio does not limit, specifically depending on actual conditions.
S103：Judge whether first ratio is more than default ratio, if it is, S104 is performed, if it is not, then performing
S105；
S104：The power battery is controlled to work in the normal mode, and returns to S101；
S105：The power battery is controlled to be stopped and judges whether the electric vehicle receives emergent instruction, such as
Fruit is that the power battery is then controlled to start to work in the emergency mode；The default ratio is more than zero.
It should be noted that in one embodiment of the invention, step S103, S104 and S105 is in the electric vehicle
Entire car controller in carry out；In another embodiment of the present invention, step S103, S104 and S105 is being built in the electricity
It is carried out in other processing chips in electrical automobile.The present invention does not limit this, specifically depending on actual conditions.
S106：After the electric vehicle restarts, the power battery is controlled to work in the normal mode.
It should be noted that before electric vehicle restarting, no matter the power battery works in normal mode
Or contingency mode, the working condition of the power battery is all reset into normal mode after electric vehicle restarting
Formula.
On the basis of above-described embodiment, in one embodiment of the invention, the power battery is controlled in normal mode
Work under formula including：
The maximum of the power battery can be arranged to the peak power output of the power battery with output power；
Show the first remaining capacity ratio of the power battery；The first remaining capacity ratio is：
Wherein, n represents the first remaining capacity ratio；Q1Represent the remaining capacity；A represents the default ratio；Q
Represent the power battery total electricity.
It should be noted that when the power battery works in the normal mode, first ratio is more than described default
Ratio, at this time it is considered that the remaining capacity of the power battery is more sufficient, therefore can be by the maximum of the power battery
The peak power output of the power battery can be arranged to output power, ensures that the normal of the electric vehicle various functions makes
With.
In one embodiment of the invention, the first of the power battery is shown by the instrument board of the electric vehicle
Remaining capacity ratio.It in another embodiment of the present invention, can also be by being arranged on the electric vehicle console
Display module shows the first remaining capacity ratio of the power battery.The present invention does not limit this, specifically regards actual feelings
Depending on condition.
It should also be noted that, in the present embodiment, the electric vehicle available power battery in the normal mode
Electricity is Q × (1-A), and when first ratio is equal to the default ratio, the first remaining capacity ratio is zero, is both existed
Available power under normal mode is zero, if electric vehicle is in the danger zones such as business district highway or highway at this time
When, driver can be by sending emergent instruction to the electric vehicle, and the electric vehicle is receiving the emergent instruction
After the power battery is controlled to start to work in the emergency mode, so that the electric vehicle is moved to safety zone by driver
Fallback is moved to charging station and charges.In the emergency mode, the electricity of the available power battery of the electric vehicle for Q ×
A, wherein A are more than zero.In one embodiment of the invention, the value range of the default ratio is 0.01-0.5, including end
Point value.In another embodiment of the present invention, the value of the default ratio is 0.1, in another embodiment of the present invention
In, the value of the default ratio is 0.2.The present invention does not limit the specific value and value range of the default ratio
It is fixed, specifically depending on actual conditions.
The specific embodiment of the present invention provides the tool that a kind of driver sends emergent instruction to the electric vehicle
Body method, including：
(1)：It pulls the hand brake；
(2)：The gear of electric vehicle is placed in neutral gear；
(3)：Braking is stepped on, while key is placed in Start grades of T1 times；
(4)：In the T2 moment, repeat and perform step (1), (2), (3) n times.
It should be noted that the present embodiment provides only a kind of feasible driver sends emergent refer to the electric vehicle
The method of order, in another embodiment of the present invention, the method that driver sends emergent instruction to the electric vehicle may be used also
Think：
(1)：It pulls the hand brake；
(2)：The gear of electric vehicle is placed in neutral gear；
(3)：Braking is stepped on, while key is placed in Start grades of T1 times.
In a preferred embodiment of the invention, can also be driven by setting triggering button in the electric vehicle
The person of sailing instructs after pressing triggering button to electric vehicle transmission is emergent.The present invention sends driver to the electric vehicle
The specific method of emergent instruction does not limit, specifically depending on actual conditions.
On the basis of above-described embodiment, in another embodiment of the present invention, the power battery is controlled in emergent mould
Starting to work under formula includes：
The maximum of the power battery can be arranged to limitation output power with output power；
Show the second remaining capacity ratio of the power battery.
On the basis of above-described embodiment, in yet another embodiment of the present invention, described second remaining capacity ratio etc.
In first ratio.In the present embodiment, when the power battery of the electric vehicle is worked under contingency mode, institute is passed through
The instrument board for stating electric vehicle shows the second remaining capacity ratio；In another embodiment of the present invention, setting is passed through
The second remaining capacity ratio is shown in the display module of the electric vehicle console.The present invention is to showing that described second is surplus
The specific device of remaining electricity ratio does not limit, specifically depending on actual conditions.
It should be noted that in the present embodiment, when first ratio is equal to the default ratio, described first is surplus
Remaining electricity ratio is zero, when both the electric vehicle works in the normal mode, is shown by instrument board or other display modules
The power battery normal mode under available power be zero, if driver sends emergent refer to the electric vehicle at this time
Order, then the power battery can start to work in the emergency mode, be shown at this time by instrument board or other display modules
Available power under the power battery contingency mode is the first ratio.
On the basis of above-described embodiment, in a preferred embodiment of the invention, the limitation output power is institute
State the product of power battery peak power output and limit coefficient.
On the basis of above-described embodiment, in yet another embodiment of the present invention, the value range of the limit coefficient
For 0.01-1, including endpoint value.
It should be noted that the purpose for introducing the limit coefficient is to work in the emergency mode when the power battery
When, it is the limitation output power that can use the maximum of the power battery output power limit, in such a mode, described in control
The maximum of power battery can be that the drive manner that driver is avoided to take some consumption electricity larger will with the purpose of output power
The remaining capacity of the power battery is quickly exhausted, so that the electric vehicle can drive to safety zone or charging
It stands.In one embodiment of the invention, the value of the limit coefficient is 0.1；In another embodiment of the present invention, institute
The value for stating limit coefficient is 0.2.The present invention does not limit the specific value of the limit coefficient, specifically regarding actual conditions
Depending on.
It should also be noted that, in a preferred embodiment of the invention, when the power battery in the emergency mode
During work, the air-conditioning system of the electric vehicle will be used by limitation, avoid the quick consumption of the power battery remaining capacity.
In another preferred embodiment of the invention, when the power battery works in the emergency mode, the electric vehicle
Air-conditioning system and audio frequency and video play system will all be used by limitation, avoid the quick consumption of the power battery remaining capacity,
Ensure that the remaining capacity of the power battery is mostly used for driving the electric automobile during traveling in the emergency mode.The present invention is right
This is not limited, specifically depending on actual conditions.
In conclusion an embodiment of the present invention provides a kind of power battery electric quantity managing method, the power battery electricity
Management method is less than or equal to institute in the remaining capacity when the power battery and the first ratio of the power battery total electricity
When stating default ratio, the power battery is controlled to be stopped, the electric vehicle can not travel at this time；If electronic vapour at this time
Vehicle is in business district highway or highway when danger zones, and driver can send emergent instruction to the electric vehicle,
After the electric vehicle receives the emergent instruction, the power battery is controlled to start to work to drive in the emergency mode
Member is by the electric automobile during traveling to home fallback or drives to charging station and charges.
Correspondingly, the embodiment of the present invention additionally provides a kind of power battery power management system, applied to electric vehicle, institute
Stating electric vehicle includes power battery；As shown in Fig. 2, the power battery power management system includes：
Electricity acquiring unit A01, for obtaining the remaining capacity of the power battery；
Computing unit A02, for calculating the first ratio that the remaining capacity accounts for the power battery total electricity；
Judging unit A03, for judging whether first ratio is more than default ratio, if it is, by the first control
Unit (not shown in attached drawing 2) controls the power battery to work in the normal mode, and returns to the electricity acquiring unit
A01；If it is not, then the power battery is controlled to be stopped by the second control unit (not shown in attached drawing 2) and judged described
Whether electric vehicle receives emergent instruction, if it is, controlling the power by the 3rd control unit (not shown in attached drawing 2)
Battery is started to work in the emergency mode；The default ratio is more than zero；
Reset cell A04 after working as the electric vehicle restarting, controls the power battery in the normal mode
Work.
On the basis of above-described embodiment, in one embodiment of the invention, first control unit is used for institute
The peak power output of the power battery can be arranged to output power by stating the maximum of power battery；
And show the first remaining capacity ratio of the power battery；The first remaining capacity ratio is：
Wherein, n represents the first remaining capacity ratio；Q1Represent the remaining capacity；A represents the default ratio；Q
Represent the power battery total electricity.
It should be noted that when the power battery works in the normal mode, first ratio is more than described default
Ratio, at this time it is considered that the remaining capacity of the power battery is more sufficient, therefore can be by the maximum of the power battery
The peak power output of the power battery can be arranged to output power, ensures that the normal of the electric vehicle various functions makes
With.
In one embodiment of the invention, the first of the power battery is shown by the instrument board of the electric vehicle
Remaining capacity ratio.It in another embodiment of the present invention, can also be by being arranged on the electric vehicle console
Display module shows the first remaining capacity ratio of the power battery.The present invention does not limit this, specifically regards actual feelings
Depending on condition.
It should also be noted that, by above-mentioned formula it can be found that in the present embodiment, the electric vehicle is in normal mode
The electricity of available power battery is Q × (1-A) under formula, when first ratio is equal to the default ratio, described first
Remaining capacity ratio is zero, and both available power in the normal mode was zero, if at this time electric vehicle be in business district highway or
For person's highway when danger zones, driver can be by sending emergent instruction, the electric vehicle to the electric vehicle
After the emergent instruction is received the power battery is controlled to start to work in the emergency mode, so that driver is by the electricity
Electrical automobile is moved to safety zone fallback or is moved to charging station and charges.In the emergency mode, the electric vehicle can use
Power battery electricity for Q × A, wherein A is more than zero.In one embodiment of the invention, the value of the default ratio
Scope is 0.01-0.5, including endpoint value.In another embodiment of the present invention, the value of the default ratio is 0.1,
In another embodiment of the present invention, the value of the default ratio is 0.2.The present invention is to the specific value of the default ratio
It is not limited with value range, specifically depending on actual conditions.
The specific embodiment of the present invention provides the tool that a kind of driver sends emergent instruction to the electric vehicle
Body method, including：
(1)：It pulls the hand brake；
(2)：The gear of electric vehicle is placed in neutral gear；
(3)：Braking is stepped on, while key is placed in Start grades of T1 times；
(4)：In the T2 moment, repeat and perform step (1), (2), (3) n times.
It should be noted that the present embodiment provides only a kind of feasible driver sends emergent refer to the electric vehicle
The method of order, in another embodiment of the present invention, the method that driver sends emergent instruction to the electric vehicle may be used also
Think：
(1)：It pulls the hand brake；
(2)：The gear of electric vehicle is placed in neutral gear；
(3)：Braking is stepped on, while key is placed in Start grades of T1 times.
In a preferred embodiment of the invention, can also be driven by setting triggering button in the electric vehicle
The person of sailing instructs after pressing triggering button to electric vehicle transmission is emergent.The present invention sends driver to the electric vehicle
The specific method of emergent instruction does not limit, specifically depending on actual conditions.
On the basis of above-described embodiment, in another embodiment of the present invention, the 3rd control unit is used for institute
Limitation output power can be arranged to output power by stating the maximum of power battery；
And show the second remaining capacity ratio of the power battery；
Wherein, the second remaining capacity ratio is equal to first ratio；The limitation output power is the power
The product of battery peak power output and limit coefficient.
It should be noted that in the present embodiment, when the power battery of the electric vehicle is worked under contingency mode,
The second remaining capacity ratio is shown by the instrument board of the electric vehicle；In another embodiment of the present invention, lead to
It crosses and is arranged at the display module of the electric vehicle console and shows the second remaining capacity ratio.The present invention is to described in display
The specific device of second remaining capacity ratio does not limit, specifically depending on actual conditions.
In the present embodiment, when first ratio is equal to the default ratio, the first remaining capacity ratio is
Zero, when both the electric vehicle works in the normal mode, the power electric that is shown by instrument board or other display modules
Available power under the normal mode of pond is zero, described dynamic if driver sends emergent instruction to the electric vehicle at this time
Power battery can start to work in the emergency mode, the power battery shown at this time by instrument board or other display modules
Available power under contingency mode is the first ratio.
On the basis of above-described embodiment, in yet another embodiment of the present invention, the value range of the limit coefficient
For 0.01-1, including endpoint value.
It should be noted that the purpose for introducing the limit coefficient is to work in the emergency mode when the power battery
When, it is the limitation output power that can use the maximum of the power battery output power limit, in such a mode, described in control
The maximum of power battery can be that the drive manner that driver is avoided to take some consumption electricity larger will with the purpose of output power
The remaining capacity of the power battery is quickly exhausted, so that the electric vehicle can drive to safety zone or charging
It stands.In one embodiment of the invention, the value of the limit coefficient is 0.1；In another embodiment of the present invention, institute
The value for stating limit coefficient is 0.2.The present invention does not limit the specific value of the limit coefficient, specifically regarding actual conditions
Depending on.
It should also be noted that, in a preferred embodiment of the invention, when the power battery in the emergency mode
During work, the air-conditioning system of the electric vehicle will be used by limitation, avoid the quick consumption of the power battery remaining capacity.
In another preferred embodiment of the invention, when the power battery works in the emergency mode, the electric vehicle
Air-conditioning system and audio frequency and video play system will all be used by limitation, avoid the quick consumption of the power battery remaining capacity,
Ensure that the remaining capacity of the power battery is mostly used for driving the electric automobile during traveling in the emergency mode.The present invention is right
This is not limited, specifically depending on actual conditions.
On the basis of above-described embodiment, in one embodiment of the invention, the electricity acquiring unit A01, calculate
Unit A02, judging unit A03, reset cell A04, the first control unit, the second control unit and the 3rd control unit are integrated in
In the entire car controller of the electric vehicle；In another embodiment of the present invention, the electricity acquiring unit A01, calculating
Unit A02, judging unit A03, reset cell A04, the first control unit, the second control unit and the 3rd control unit can be with
It is separately set in inside the electric vehicle；In yet another embodiment of the present invention, the electricity acquiring unit A01, calculating
Unit A02, judging unit A03, reset cell A04, the first control unit, the second control unit and the 3rd control unit can be with
It is integrated in the processing chip being built in above-mentioned electric vehicle.The present invention does not limit this, specifically regard actual conditions and
It is fixed.
Correspondingly, the embodiment of the present invention additionally provides a kind of electric vehicle, the electric vehicle include it is at least one as above
State the power battery power management system described in any embodiment.
In conclusion an embodiment of the present invention provides a kind of electric vehicle, power battery electric quantity managing method and management systems
System；Wherein, the power battery electric quantity managing method is always electric in the remaining capacity when the power battery and the power battery
When first ratio of amount is less than or equal to the default ratio, the power battery is controlled to be stopped, electronic vapour described at this time
Vehicle can not travel；If electric vehicle is in business district highway or highway when danger zones at this time, driver can be to
The electric vehicle sends emergent instruction, after the electric vehicle receives the emergent instruction, the power battery is controlled to exist
Under contingency mode start to work so as to driver by the electric automobile during traveling to home fallback or drive to charging station into
Row charges.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (7)
1. a kind of power battery electric quantity managing method, applied to electric vehicle, the electric vehicle includes power battery；Its feature
It is, the power battery electric quantity managing method includes：
Obtain the remaining capacity of the power battery；
Calculate the first ratio of the remaining capacity and the power battery total electricity；
Judge whether first ratio is more than default ratio, if it is, controlling power battery work in the normal mode
Make, and return to the remaining capacity for obtaining the power battery；If it is not, then the power battery is controlled to be stopped and judges institute
State whether electric vehicle receives emergent instruction, if it is, the power battery is controlled to start to work in the emergency mode；Institute
Default ratio is stated more than zero；
After the electric vehicle restarts, the power battery is controlled to work in the normal mode；
Control the power battery start to work in the emergency mode including：
The maximum of the power battery can be arranged to limitation output power with output power；
Show the second remaining capacity ratio of the power battery；
Wherein, the second remaining capacity ratio is equal to first ratio；The limitation output power is the power battery
The product of peak power output and limit coefficient.
2. power battery electric quantity managing method according to claim 1, which is characterized in that control the power battery just
Work under norm formula including：
The maximum of the power battery can be arranged to the peak power output of the power battery with output power；
Show the first remaining capacity ratio of the power battery；The first remaining capacity ratio is：
<mrow>
<mi>n</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>Q</mi>
<mn>1</mn>
</msub>
<mo>-</mo>
<mi>A</mi>
<mo>&times;</mo>
<mi>Q</mi>
</mrow>
<mrow>
<mi>Q</mi>
<mo>&times;</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>-</mo>
<mi>A</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>;</mo>
</mrow>
Wherein, n represents the first remaining capacity ratio；Q1Represent the remaining capacity；A represents the default ratio；Q is represented
The power battery total electricity.
3. power battery electric quantity managing method according to claim 1, which is characterized in that the value model of the limit coefficient
It encloses for 0.01-1, including endpoint value.
4. a kind of power battery power management system, applied to electric vehicle, the electric vehicle includes power battery；Its feature
It is, the power battery power management system includes：
Electricity acquiring unit, for obtaining the remaining capacity of the power battery；
Computing unit, for calculating the first ratio that the remaining capacity accounts for the power battery total electricity；
Judging unit, for judging whether first ratio is more than default ratio, if it is, being controlled by the first control unit
The power battery works in the normal mode, and returns to the electricity acquiring unit；If it is not, then by the second control unit control
It makes the power battery to be stopped and judge whether the electric vehicle receives emergent instruction, if it is, by the 3rd control
Unit processed controls the power battery to start to work in the emergency mode；The default ratio is more than zero；
Reset cell after working as the electric vehicle restarting, controls the power battery to work in the normal mode；
3rd control unit is used to the maximum of the power battery can be arranged to limitation output power with output power；
And show the second remaining capacity ratio of the power battery；
Wherein, the second remaining capacity ratio is equal to first ratio；The limitation output power is the power battery
The product of peak power output and limit coefficient.
5. power battery power management system according to claim 4, which is characterized in that first control unit is used for
The maximum of the power battery can be arranged to the peak power output of the power battery with output power；
And show the first remaining capacity ratio of the power battery；The first remaining capacity ratio is：
<mrow>
<mi>n</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>Q</mi>
<mn>1</mn>
</msub>
<mo>-</mo>
<mi>A</mi>
<mo>&times;</mo>
<mi>Q</mi>
</mrow>
<mrow>
<mi>Q</mi>
<mo>&times;</mo>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>-</mo>
<mi>A</mi>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>;</mo>
</mrow>
Wherein, n represents the first remaining capacity ratio；Q1Represent the remaining capacity；A represents the default ratio；Q is represented
The power battery total electricity.
6. power battery power management system according to claim 4, which is characterized in that the value model of the limit coefficient
It encloses for 0.01-1, including endpoint value.
7. a kind of electric vehicle, which is characterized in that the electric vehicle includes at least one as described in claim any one of 4-6
Power battery power management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288892.9A CN105946605B (en) | 2016-05-04 | 2016-05-04 | A kind of electric vehicle, power battery electric quantity managing method and management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610288892.9A CN105946605B (en) | 2016-05-04 | 2016-05-04 | A kind of electric vehicle, power battery electric quantity managing method and management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105946605A CN105946605A (en) | 2016-09-21 |
| CN105946605B true CN105946605B (en) | 2018-05-25 |
Family
ID=56913847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610288892.9A Active CN105946605B (en) | 2016-05-04 | 2016-05-04 | A kind of electric vehicle, power battery electric quantity managing method and management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105946605B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597302A (en) * | 2016-11-30 | 2017-04-26 | 北京国网普瑞特高压输电技术有限公司 | Electric quantity metering method for vehicle-mounted power battery of electromobile |
| CN107037370B (en) * | 2017-04-18 | 2020-08-21 | 知豆电动汽车有限公司 | Electric vehicle remaining power calculation method based on monitoring data |
| CN107745646A (en) * | 2017-09-28 | 2018-03-02 | 北京新能源汽车股份有限公司 | Pure electric vehicle, working method and battery management system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306714A (en) * | 2011-09-06 | 2012-01-04 | 力帆实业(集团)股份有限公司 | Range-extended battery pack of pure electromobile |
| CN102303538A (en) * | 2011-05-26 | 2012-01-04 | 奇瑞汽车股份有限公司 | Method and device for displaying residual driving range of electromobile |
| CN102806858A (en) * | 2011-05-31 | 2012-12-05 | 瑞萨电子株式会社 | Voltage monitoring system and voltage monitoring module |
| CN103754132A (en) * | 2014-01-27 | 2014-04-30 | 国家电网公司 | Emergency shutdown system and method for electric car |
-
2016
- 2016-05-04 CN CN201610288892.9A patent/CN105946605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303538A (en) * | 2011-05-26 | 2012-01-04 | 奇瑞汽车股份有限公司 | Method and device for displaying residual driving range of electromobile |
| CN102806858A (en) * | 2011-05-31 | 2012-12-05 | 瑞萨电子株式会社 | Voltage monitoring system and voltage monitoring module |
| CN102306714A (en) * | 2011-09-06 | 2012-01-04 | 力帆实业(集团)股份有限公司 | Range-extended battery pack of pure electromobile |
| CN103754132A (en) * | 2014-01-27 | 2014-04-30 | 国家电网公司 | Emergency shutdown system and method for electric car |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105946605A (en) | 2016-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105946605B (en) | A kind of electric vehicle, power battery electric quantity managing method and management system | |
| EP2661387B1 (en) | Regenerative braking feedback display system and method | |
| Ahluwalia et al. | Fuel economy of hybrid fuel-cell vehicles | |
| CN103770776B (en) | Motor vehicle driven by mixed power is set to postpone pure electric operating | |
| CN103373233B (en) | Vehicle preferential treatment system, battery-driven car, vehicle preferential treatment system server and vehicle preferential treatment method | |
| US8831808B2 (en) | Controlled shutdown of an electric vehicle | |
| CN106364349A (en) | Charging control method and device for electric automobile and electric automobile | |
| US20140172214A1 (en) | Method and system for setting motor torque for hybrid vehicle | |
| US20100010697A1 (en) | Vehicular display device, method of controlling the same, program, and storage medium having program stored therein | |
| CN106218551A (en) | The scaling method of automobile, demarcation terminal and calibration system | |
| CN103419616B (en) | Four-drive hybrid electric vehicle and control method thereof | |
| CN107134820B (en) | Method and system for wireless mutual charging between electric vehicles | |
| CN102582447A (en) | Method capable of adjusting recovery proportion of braking force of electric vehicle | |
| CN101559769A (en) | Safe control method for electric automobile torque | |
| CN104960429B (en) | The power distribution means and energy distributing method of a kind of city electric bus compound energy | |
| WO2022126356A1 (en) | Brake control method, brake control device and electric vehicle | |
| CN109130898A (en) | Control method, device and equipment of integrated vehicle-mounted charger and automobile | |
| CN110641485B (en) | Power control method, device and system and hybrid power internal combustion motor train unit | |
| CN1900504B (en) | Vehicle and method for controlling an engine in a ve | |
| CN106218421A (en) | Control the method and system of vehicle regenerative braking | |
| CN106971615A (en) | Parking charge method and device | |
| EP2590847A1 (en) | Energy control system and method for a hybrid vehicle | |
| CN104960431B (en) | A kind of power distribution means and energy distributing method based on lithium-rich manganese-based lithium battery motor-car | |
| CN106740815A (en) | Mixed electrical automobile dynamical system, motor discharge capability evaluation method and estimation control device | |
| CN109532560A (en) | Control method, equipment, storage medium and the device of hybrid vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160921 Assignee: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Assignor: Chongqing Changan Automobile Co.,Ltd.|CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Contract record no.: 2018500000022 Denomination of invention: Electric automobile, power battery electric quantity management method and management system Granted publication date: 20180525 License type: Exclusive License Record date: 20181130 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190108 Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Co-patentee before: CHONGQING CHANG'AN NEW ENERGY AUTOMOBILE Co.,Ltd. Patentee before: Chongqing Changan Automobile Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee after: Deep Blue Automotive Technology Co.,Ltd. Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |