CN103855748B - The charging system and its charging method of a kind of vehicle - Google Patents
The charging system and its charging method of a kind of vehicle Download PDFInfo
- Publication number
- CN103855748B CN103855748B CN201210518504.3A CN201210518504A CN103855748B CN 103855748 B CN103855748 B CN 103855748B CN 201210518504 A CN201210518504 A CN 201210518504A CN 103855748 B CN103855748 B CN 103855748B
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- 230000005611 electricity Effects 0.000 claims description 29
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- 238000006243 chemical reaction Methods 0.000 claims description 4
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- 101001006387 Homo sapiens Abasic site processing protein HMCES Proteins 0.000 description 20
- 230000008859 change Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of charging system of vehicle, including electrokinetic cell, first battery manager, direct current transducer, entire car controller and accumulator cell assembly, the break-make of the vehicle control unit controls direct current transducer make electrokinetic cell start or stop charging to accumulator cell assembly, the accumulator cell assembly includes battery pack, charge DC/DC and the second battery manager, during electrokinetic cell is to accumulator cell assembly charging, the battery status information that entire car controller is uploaded according to the first battery manager and the second battery manager, control the break-make of direct current transducer to start or stop electrokinetic cell and give accumulator cell assembly charging, and the second battery manager monitors battery state, the control charging DC/DC charges to battery pack, therefore the charging system of above-mentioned vehicle, accumulator cell assembly state can be monitored in real time, effective management can be implemented to the charging of accumulator cell assembly.
Description
Technical field
The present invention relates to the charging system and its charging method in new energy vehicle field, more particularly to a kind of vehicle.
Background technology
Battery is a kind of critically important parts in vehicular field, and can battery directly influence vehicle and normally open
Move and to power supply for electrical equipment, vehicle in the process of moving, can consume the electricity of a part of battery, if battery is excessively put
Electricity can cause discharged or defective battery, and the dump energy of battery is less than electricity is started, and directly resulting in vehicle can not start next time, therefore
Need to charge to vehicle-mounted battery.
In the prior art, battery does not possess the function of battery management, the process charged a battery in external power source
In, it can cause to overcharge battery, or even damage battery.
The content of the invention
The technical problems to be solved by the invention are that the battery for being directed to prior art can not monitor battery in real time in itself
State, accumulator cell assembly state can be monitored in real time there is provided one kind by easily causing the problem of overcharging, can be to batteries
The charging system and its charging method of the vehicle effectively managed are implemented in the charging of part.
The above-mentioned technical problem of the present invention is achieved by the following technical programs:A kind of charging system of vehicle, including
Electrokinetic cell, the first battery manager, direct current transducer, entire car controller and accumulator cell assembly；First battery management
Device connects electrokinetic cell and entire car controller respectively, the state for monitoring electrokinetic cell, and status information is uploaded to described
Entire car controller；The direct current transducer is connected between electrokinetic cell and accumulator cell assembly, in electrokinetic cell and electric power storage
Voltage conversion is carried out between the component of pond；The entire car controller is connected with direct current transducer and accumulator cell assembly respectively, for controlling
The break-make of direct current transducer processed make electrokinetic cell start or stop charging to accumulator cell assembly；The accumulator cell assembly includes battery
Group, charging DC/DC and the second battery manager, second battery manager are used to monitor battery state, and control institute
Charging DC/DC is stated to charge to battery pack.
Further, the entire car controller is connected with second battery manager, and second battery manager is used
In the status information of battery pack is uploaded into entire car controller.
Further, the entire car controller is used for when the dump energy of the battery pack is less than SOC is started, it is allowed to control
Direct current transducer conducting processed, makes electrokinetic cell start to accumulator cell assembly and charges；And the entire car controller is used for described
When the dump energy of battery pack is 100%, it is allowed to control direct current transducer to disconnect, electrokinetic cell is set to stop filling to accumulator cell assembly
Electricity.
Further, the entire car controller is used for the temperature in the battery pack in minimum temperature threshold to maximum temperature
When between threshold value, it is allowed to control direct current transducer to turn on, electrokinetic cell is started to accumulator cell assembly and charge；And the vehicle
Controller is used for when the temperature of the battery pack is less than minimum temperature threshold or higher than maximum temperature threshold value, it is allowed to which control is straight
Stream transformer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly.
Further, the charging DC/DC includes DC relays, and second battery manager is used to trigger DC relays
It is turned on or off, and then controls charging DC/DC to export different charging currents to battery pack.
Further, the first electrode of the battery pack connects the positive pole of electrokinetic cell, the second electrode connection of battery pack
The negative pole of electrokinetic cell；The first input end of the charging DC/DC connects the positive pole of electrokinetic cell, the first output end connection power
The negative pole of battery, the second input is connected with the second battery manager, and the second output end is connected with battery pack；Second battery
Manager connects the positive pole and negative pole of electrokinetic cell respectively；Set between the first electrode of the battery pack and the positive pole of electrokinetic cell
It is equipped with counnter attack diode.
Further, the vehicle is pure electric vehicle or hybrid electric vehicle.
Invention further provides a kind of charging method of the charging system of above-mentioned car two, comprise the following steps：Institute
State the second battery manager and monitor the state of temperature and state of charge of battery pack, and status information is uploaded to entire car controller；
The entire car controller the battery pack temperature in minimum temperature threshold between maximum temperature threshold value when, it is and described whole
Vehicle controller is when the dump energy of the battery pack is less than SOC is started, and control direct current transducer conducting makes electrokinetic cell to storage
Battery component starts charging；Second battery manager is used to monitor battery state, and controls the charging DC/DC to electricity
Pond group charging；The entire car controller is when the dump energy of the battery pack is 100%, and control direct current transducer disconnects, and makes
Power battery stops charging to accumulator cell assembly, charging complete.
Further, the charging system of the vehicle carries out fault self-checking, and fail result is uploaded into entire car controller,
And when the charging system of the vehicle breaks down, the vehicle control unit controls direct current transducer disconnects, complete charge.
Further, including：The entire car controller is less than minimum temperature threshold or height in the temperature of the battery pack
When maximum temperature threshold value, control direct current transducer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly.
Further, it is further comprising the steps of before the S101 steps when detecting vehicle for OFF grades of electricity, it is described
Entire car controller detect car door, boot or front hatch cover be in be not turned off state when, control direct current transducer disconnect, do not permit
Perhaps electrokinetic cell charges to accumulator cell assembly.
Further, it is further comprising the steps of after the S103 steps when detecting vehicle for OFF grades of electricity, it is described
Entire car controller detects car door, boot or front hatch cover in when being not turned off state, and control direct current transducer disconnects, and makes power
Battery stops charging to accumulator cell assembly.
Further, second battery manager is according to the difference of battery pack temperature, and DC/DC is to battery pack for control charging
The different charging current of output.
Further, the second battery manager control charging DC/DC is charged with the charging modes of constant pressure to battery pack.
A kind of charging system of the vehicle provided according to the present invention, including：Electrokinetic cell, the first battery manager, direct current
Converter, entire car controller and accumulator cell assembly；First battery manager connects electrokinetic cell and full-vehicle control respectively
Device, the state for monitoring electrokinetic cell, and status information is uploaded to the entire car controller；The direct current transducer connection
Between electrokinetic cell and accumulator cell assembly, for carrying out voltage conversion between electrokinetic cell and accumulator cell assembly；It is described whole
Vehicle controller is connected with direct current transducer and accumulator cell assembly respectively, for controlling the break-make of direct current transducer to open electrokinetic cell
Move or stop charging to accumulator cell assembly；The accumulator cell assembly includes battery pack, charging DC/DC and the second battery management
Device, second battery manager is used to monitor battery state, and controls the charging DC/DC to be charged to battery pack.It is above-mentioned
In the charging system of vehicle, accumulator cell assembly is matched as low-tension supply, the second battery manager with low-tension supply, in real time monitoring
The state of battery pack, electrokinetic cell is matched as high voltage power supply, the first battery manager with high voltage power supply, and power electric is monitored in real time
The state in pond, therefore accumulator cell assembly and electrokinetic cell have independent battery management function respectively, in electrokinetic cell to electric power storage
During the component charging of pond, the battery status that entire car controller is uploaded according to the first battery manager and the second battery manager
Information, controls the break-make of direct current transducer to start or stop electrokinetic cell and gives accumulator cell assembly charging, and the second cell tube
Device monitoring battery state is managed, controls the charging DC/DC to be charged to battery pack, therefore the charging system of above-mentioned vehicle, energy
Enough monitoring accumulator cell assembly states in real time, can implement effective management to the charging of accumulator cell assembly.
In addition, a kind of charging method of the charging system of the above-mentioned vehicle provided according to invention, comprises the following steps：It is described
Second battery manager monitors the state of temperature and state of charge of battery pack, and status information is uploaded into entire car controller；Institute
State temperature of the entire car controller in the battery pack in minimum temperature threshold between maximum temperature threshold value when, and the vehicle
Controller is when the dump energy of the battery pack is less than SOC is started, and control direct current transducer conducting makes electrokinetic cell to electric power storage
Pond component starts charging；Second battery manager is used to monitor battery state, and controls the charging DC/DC to battery
Group charging；The entire car controller is when the dump energy of the battery pack is 100%, and control direct current transducer disconnects, and makes power
Battery stops charging to accumulator cell assembly.According to above-mentioned charging method, entire car controller is according to the first battery manager and
The information that two battery managers are uploaded, controls the break-make of direct current transducer to start or stop electrokinetic cell and is filled to accumulator cell assembly
Electricity, the second battery manager monitoring battery state, and control the charging DC/DC to be charged to battery pack, it can monitor in real time
Accumulator cell assembly state, can implement effective management to the charging of accumulator cell assembly.
Brief description of the drawings
Fig. 1 is the charging system block diagram of vehicle in an embodiment of the present invention.
Fig. 2 is the electrical connection graph of accumulator cell assembly in an embodiment of the present invention.
Fig. 3 is the flow chart of the charging method of the charging system of vehicle in an embodiment of the present invention.
Fig. 4 be in an embodiment of the present invention on vehicle during ON grades of electricity the charging method of the charging system of vehicle flow
Figure.
Fig. 5 be in an embodiment of the present invention on vehicle during OFF grades of electricity the charging method of the charging system of vehicle flow
Figure.
Embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail, it will be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
In the description of the invention, it is to be understood that term " on ", " under ", "left", "right", " vertical ", " level ",
The orientation or position relationship of the instruction such as "front", "rear", " interior ", " outer " for based on accompanying drawing orientation or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection or the connection of two element internals, can
, for a person skilled in the art, can be according to tool to be to be joined directly together or be indirectly connected to by intermediary
Body situation understands the concrete meaning of above-mentioned term.
The charging system block diagram of vehicle in an embodiment of the present invention as shown in Figure 1, a kind of charging system of vehicle, bag
Include electrokinetic cell 20, the first battery manager 40, direct current transducer 60, entire car controller 50 and accumulator cell assembly 10.It is described
Electrokinetic cell 20 is used as the traveling offer energy of the high voltage power supply, predominantly vehicle of vehicle, 40 points of first battery manager
Not Lian Jie electrokinetic cell 20 and entire car controller 50, further, first manager 40 passes through line and the electrokinetic cell of sampling
20 connections, gather the information, the state for monitoring electrokinetic cell 20 such as electricity, voltage, the temperature of electrokinetic cell 20；Described first
Battery manager 40 is connected by CAN lines with entire car controller 50, and above-mentioned status information is uploaded into the full-vehicle control
Device 50.
The direct current transducer 60 is connected between electrokinetic cell 20 and accumulator cell assembly 10, in the He of electrokinetic cell 20
Voltage conversion is carried out between accumulator cell assembly 10, because electrokinetic cell 20 is as high voltage power supply, accumulator cell assembly 10 is used as low pressure
Power supply, in the embodiment that the present invention is provided, when the accumulator cell assembly 10 charges, input voltage is 13.6V.The direct current turns
Parallel operation 60 includes DC relays, by the break-make of DC relays, to control the break-make of direct current transducer 60 to start electrokinetic cell
Or stop charging to accumulator cell assembly 10.
The entire car controller 50 is connected with direct current transducer 60 and accumulator cell assembly 10 respectively, the entire car controller 50
Connected by CAN lines, according to the state of accumulator cell assembly 10, the break-make for controlling direct current transducer 60 opens electrokinetic cell 20
Move or stop charging to accumulator cell assembly 10.
The electrical connection graph of accumulator cell assembly in an embodiment of the present invention as shown in Figure 2.The accumulator cell assembly 10 is wrapped
Battery pack 11, charging DC/DC12 and the second battery manager 13 are included, second battery manager 13 is used to monitor battery pack
11 states, and control the charging DC/DC12 to be charged to battery pack 11.Accumulator cell assembly 10 is used as low-tension supply, the second battery
Manager 13 is matched with low-tension supply, in real time the state of monitoring battery pack 11, and electrokinetic cell 20 is used as high voltage power supply, the first battery
Manager 40 is matched with high voltage power supply, the state of monitoring electrokinetic cell 20, therefore accumulator cell assembly 10 and electrokinetic cell 20 in real time
There is independent battery management function respectively, a total battery manager is integrated in compared to by two above-mentioned battery managers
In, the charging system for the vehicle that the present invention is provided, by for the module and program of low-tension supply and the module for high voltage power supply
Separated with program, simplify programming and the structure design of battery manager, make the work of the charging system of vehicle more steady
It is fixed reliable；During electrokinetic cell 20 charges to accumulator cell assembly 10, entire car controller 50 is according to the first battery manager
40 and second battery manager 13 upload battery status information, control direct current transducer 50 break-make start electrokinetic cell 20
Or stop charging to accumulator cell assembly 10, and the second battery manager 13 monitoring state of battery pack 11, control the charging DC/
DC12 is charged to battery pack 11, therefore the charging system of above-mentioned vehicle, and the state of accumulator cell assembly 10 can be monitored in real time, can be with
Effective management, the problem of can not only avoiding the occurrence of overcharged are implemented in charging to accumulator cell assembly 10, and can be used
Different charging modes are implemented to charge to accumulator cell assembly 10.
In the embodiment that the present invention is provided, the entire car controller 50 is connected with the second battery manager 13, vehicle control
The battery manager 13 of device 50 and second processed is connected by CAN lines, and the second battery manager 13 is used to believe the state of battery pack 11
Breath is uploaded to entire car controller 50, and then entire car controller 50 is according to this status information, and the break-make of control direct current transducer 60 makes
Electrokinetic cell 20 is started or stoped to charge to accumulator cell assembly 10.
In the embodiment that the present invention is provided, the entire car controller 50 is connected with the first battery manager 40, works as detection
When being less than the electricity of battery pack 11 to the electricity of electrokinetic cell 20, entire car controller 50 is according to this status information, and control direct current turns
Parallel operation 60 disconnects, and does not allow electrokinetic cell 20 to be charged to accumulator cell assembly 10.
Because when the dump energy of battery pack 11 is less than SOC is started, it is impossible to normally start vehicle, so being carried in the present invention
In the embodiment of confession, the entire car controller 50 is used for when the dump energy of the battery pack 11 is less than SOC is started, it is allowed to control
Direct current transducer 60 processed is turned on, and electrokinetic cell 20 is started charging to accumulator cell assembly 10, the startup SOC is with battery pack 11
The change of temperature and change, be not a fixed value；And the entire car controller 50 is used in the battery pack 11
When dump energy is 100%, it is allowed to control direct current transducer 60 to disconnect, electrokinetic cell 20 is set to stop charging to accumulator cell assembly 10.
In the embodiment that the present invention is provided, the entire car controller 50 is used for the temperature in the battery pack 11 minimum
When temperature threshold is between maximum temperature threshold value, it is allowed to control direct current transducer 60 to turn on, make electrokinetic cell 20 to batteries
Part 10 starts charging；And the entire car controller 50 be used for temperature in the battery pack 11 less than minimum temperature threshold or
During higher than maximum temperature threshold value, it is allowed to control direct current transducer 60 to disconnect, electrokinetic cell 20 is set to stop filling to accumulator cell assembly 10
Electricity.Further, the minimum temperature threshold is -40 degrees Celsius, and maximum temperature threshold value is 85 degrees Celsius.
The charging DC/DC includes DC relays 125, and second battery manager 13 is used to trigger DC relays 125
It is turned on or off, and then controls charging DC/DC12 to export different charging currents to battery pack 11, further, the second battery
The ON time of the control DC of manager 13 relays 125 and the proportionate relationship of turn-off time, change charging DC/DC12 output currents
Dutycycle, so as to change the size of charging current.
Second battery manager 13 is connected with charging DC/DC12 and battery pack 11 respectively, second battery management
Device 13 monitors the state of battery pack 11, controls the DC/DC12 to be charged to battery pack 11, and controls the battery pack 11 to discharge.Enter
One step, the second battery manager 13 is connected by CAN lines with charging DC/DC12, while also passing through line and the battery pack 11 of sampling
It is connected, to carry out battery temperature sampling, voltage sample, current sample and electric power detection etc. to battery pack 11.
The battery pack 11, charging DC/DC12 and the second battery manager 13 are integrated in accumulator cell assembly 10.At this
In one embodiment of invention, the first electrode 111 of the battery pack 11 connects the positive pole 21 of electrokinetic cell 20, battery pack 11
Second electrode 112 connects the negative pole 22 of electrokinetic cell 20；The connection electrokinetic cell of first input end 122 of the charging DC/DC12
Positive pole 21, the first output end 123 connects the negative pole 22 of electrokinetic cell, the second input 124 of the charging DC/DC12 and the
Two battery managers 13 are connected, and the second output end 121 of the charging DC/DC12 is connected with battery pack 11.Accumulator cell assembly shape
Into following charge circuit：Electric current is sent from the positive pole of electrokinetic cell 20, by the positive pole of accumulator cell assembly, passes through the DC/DC12 that charges
First input end 122 enter charging DC/DC12, then second output end 121 of the electric current through overcharge DC/DC enter battery pack
11, pass through from the second electrode 112 of battery pack 11, it is final to import the negative pole 22 of electrokinetic cell, returned so as to form complete charging
Road.Preferably, counnter attack diode 14 is provided between the first electrode 111 of the battery pack and the positive pole 21 of electrokinetic cell,
Electric current realizes one-way conduction between the first electrode 111 of battery pack and the positive pole 21 of electrokinetic cell, so that accumulator cell assembly
10 charge circuit and discharge loop is relatively independent, does not interfere with each other.
Second battery manager 13 connects the positive pole 21 and negative pole 22 of electrokinetic cell respectively.
The battery pack 11 is ferric phosphate lithium cell, is composed in series by 4 batteries monomers.
The vehicle is pure electric vehicle or hybrid electric vehicle.
The flow chart of the charging method of the charging system of vehicle in an embodiment of the present invention as shown in Figure 3.A kind of car
Charging system charging method, comprise the following steps：
S101：Second battery manager 13 monitors the state of temperature and state of charge of battery pack 11, and by status information
Reach entire car controller 50.
When detecting vehicle for OFF grades of electricity, further comprising the steps of before the S101 steps, the full-vehicle control
Device 50 detect car door, boot or front hatch cover be in be not turned off state when, control direct current transducer 60 disconnect, can not allow
Power battery 20 charges to accumulator cell assembly 10.
S102：Entire car controller 50 the battery pack 11 temperature in minimum temperature threshold between maximum temperature threshold value
When, and the entire car controller 50 controls direct current transducer 60 when the dump energy of the battery pack 11 is less than SOC is started
Conducting, makes electrokinetic cell 20 start charging to accumulator cell assembly 10；Preferably, further comprising：The entire car controller 50
When the temperature of the battery pack is less than minimum temperature threshold or higher than maximum temperature threshold value, control direct current transducer 60 breaks
Open, electrokinetic cell 20 is stopped charging to accumulator cell assembly 10.
S103：Second battery manager 13 is used to monitor the state of battery pack 11, and controls the charging DC/DC12 to electricity
Pond group 11 charges.The charging DC/DC12 includes DC relays 125, the triggering DC of the second battery manager 13 relays 125
It is turned on or off, and then controls charging DC/DC12 to export different charging currents to battery pack 11.Because the property of battery pack 11
Temperature with itself is closely related, for the property according to battery pack, and realization is preferably charged, in the present embodiment, the second electricity
Pool manager 13 controls charging DC/DC12 to export different charging currents to battery pack 11 according to the difference of battery pack temperature.
In one embodiment, the control of the second battery manager 13 charging DC/DC12 is given with the charging modes of constant pressure
Battery pack 11 charges, because battery pack internal resistance is continually changing, charging current also changes therewith, and the charging current is with filling
The increase of electric time is gradually successively decreased.
In another embodiment, second battery manager 13 control charging DC/DC12 is different with three kinds successively
Charging modes charge to battery pack：Trickle mode, current constant mode and constant voltage mode.Trickle mode main function is to excite battery
Activity inside group；Current constant mode main function is to be filled with most electric current to battery pack；Constant voltage mode main function is anti-
Only overcharged to battery pack.Charging current is relevant with the dump energy of battery pack, and the dump energy of battery pack is bigger, charging electricity
Stream is smaller；Charging interval is also relevant with the dump energy of battery pack, and the dump energy of battery pack is bigger, and the charging interval is smaller.
When detecting vehicle for OFF grades of electricity, further comprising the steps of after the S103 steps, the full-vehicle control
Device 50 detects car door, boot or front hatch cover in when being not turned off state, and control direct current transducer 60 disconnects, and makes electrokinetic cell
20 stop charging to accumulator cell assembly 10.
S104：Entire car controller 50 is when the dump energy of the battery pack 11 is 100%, and control direct current transducer 60 breaks
Open, electrokinetic cell 20 is stopped charging, charging complete to accumulator cell assembly 10.
In the charging system course of work of vehicle, the charging system of the vehicle carries out fault self-checking, and by failure knot
Fruit is uploaded to entire car controller 50, and when the charging system of the vehicle breaks down, the entire car controller 50 is controlled directly
Stream transformer 60 disconnects, complete charge.
Fig. 4 be in an embodiment of the present invention on vehicle during ON grades of electricity the charging method of the charging system of vehicle flow
Figure, comprises the following steps：
S201：ON grades of electricity on vehicle；
S202：Monitor the temperature and dump energy of battery pack；
S203：The temperature of battery pack whether in minimum temperature threshold between maximum temperature threshold value, if it is, performing
S205, if not, performing S204；
S204：Vehicle control unit controls direct current transducer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly；
S205：Whether the dump energy of battery pack is less than startup SOC；If it is, S207 is performed, if not, performing S206；
S206：Vehicle control unit controls direct current transducer disconnects, and accumulator cell assembly stops charging；
S207：Vehicle control unit controls direct current transducer is turned on, and electrokinetic cell is started to accumulator cell assembly and is charged；
S208：Second battery manager monitors battery state, and controls the charging DC/DC to be charged to battery pack；
S209：Whether the dump energy of battery pack is 100%, if it is, S210 is performed, if not, performing S207.
Fig. 5 be in an embodiment of the present invention on vehicle during OFF grades of electricity the charging method of the charging system of vehicle flow
Figure, comprises the following steps：
S301：OFF grades of electricity on vehicle；
S302：Whether detection car door, front hatch cover or boot are closed, if it is, S304 is performed, if not,
Perform S303；
S303：Vehicle control unit controls direct current transducer disconnects, and does not allow electrokinetic cell to be charged to accumulator cell assembly；
S304：The temperature of battery pack whether in minimum temperature threshold between maximum temperature threshold value, and battery pack is surplus
Whether remaining electricity is less than SOC is started, if it is, S306 is performed, if not, performing S305;
S305：Vehicle control unit controls direct current transducer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly；
S306：Vehicle control unit controls direct current transducer is turned on, and electrokinetic cell is started to accumulator cell assembly and is charged；
S307：Second battery manager monitors battery state, and controls the charging DC/DC to be charged to battery pack；
S308：Whether detection car door, front hatch cover or boot are closed, if it is, S310 is performed, if not,
Perform S309；
S309：Vehicle control unit controls direct current transducer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly；
S310：Whether the dump energy of battery pack is 100%, if it is, S311 is performed, if not, performing S306；
S311：Vehicle control unit controls direct current transducer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly, charging
Complete.
Preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (14)
1. a kind of charging system of vehicle, including：Electrokinetic cell, the first battery manager, direct current transducer, entire car controller with
And accumulator cell assembly；
First battery manager connects electrokinetic cell and entire car controller respectively, the state for monitoring electrokinetic cell, and
Status information is uploaded to the entire car controller；
The direct current transducer is connected between electrokinetic cell and accumulator cell assembly, for electrokinetic cell and accumulator cell assembly it
Between carry out voltage conversion；
The entire car controller is connected with direct current transducer and accumulator cell assembly respectively, for controlling the break-make of direct current transducer to make
Electrokinetic cell, which is started or stoped, gives accumulator cell assembly charging；
Characterized in that, the accumulator cell assembly includes battery pack, charging DC/DC and the second battery manager, described second
Battery manager is used to monitor battery state, and controls the charging DC/DC to be charged to battery pack；
Counnter attack diode is provided between the first electrode of the battery pack and the positive pole of electrokinetic cell.
2. the charging system of vehicle as claimed in claim 1, it is characterised in that the entire car controller and second battery
Manager is connected, and second battery manager is used to the status information of battery pack being uploaded to entire car controller.
3. the charging system of vehicle as claimed in claim 2, it is characterised in that the entire car controller is used in the battery
When the dump energy of group is less than SOC is started, it is allowed to control direct current transducer to turn on, electrokinetic cell is started to accumulator cell assembly and fill
Electricity；And the entire car controller is used for when the dump energy of the battery pack is 100%, it is allowed to control direct current transducer to break
Open, make electrokinetic cell stop charging to accumulator cell assembly.
4. the charging system of vehicle as claimed in claim 2, it is characterised in that the entire car controller is used in the battery
The temperature of group is when minimum temperature threshold is between maximum temperature threshold value, it is allowed to controls direct current transducer to turn on, makes electrokinetic cell
Start to accumulator cell assembly and charge；And the entire car controller is used to be less than minimum temperature threshold in the temperature of the battery pack
Or during higher than maximum temperature threshold value, it is allowed to control direct current transducer to disconnect, make electrokinetic cell stop charging to accumulator cell assembly.
5. the charging system of vehicle as claimed in claim 1, it is characterised in that the charging DC/DC includes DC relays, institute
State the second battery manager to be turned on or off for triggering DC relays, and then control charging DC/DC to export different to battery pack
Charging current.
6. the charging system of vehicle as claimed in claim 1, it is characterised in that
The first electrode of the battery pack connects the positive pole of electrokinetic cell, and the second electrode of battery pack connects the negative of electrokinetic cell
Pole；
The first input end of the charging DC/DC connects the positive pole of electrokinetic cell, and the first output end connects the negative pole of electrokinetic cell,
Second input is connected with the second battery manager, and the second output end is connected with battery pack；
The positive pole and negative pole for the electrokinetic cell that second battery manager is connected respectively.
7. the charging system of vehicle as claimed in claim 1, it is characterised in that the vehicle is that pure electric vehicle or mixing are dynamic
Power car.
8. a kind of charging method of the charging system of the vehicle in 1-7 such as claim as described in any one, it is characterised in that bag
Include following steps：
S101：Second battery manager monitors the state of temperature and state of charge of battery pack, and status information is uploaded to
Entire car controller；
S102：The entire car controller the battery pack temperature in minimum temperature threshold between maximum temperature threshold value when,
And the entire car controller is when the dump energy of the battery pack is less than SOC is started, control direct current transducer conducting makes
Power battery starts to accumulator cell assembly to charge；
S103：Second battery manager is used to monitor battery state, and controls the charging DC/DC to be filled to battery pack
Electricity；S104：The entire car controller is when the dump energy of the battery pack is 100%, and control direct current transducer disconnects, and makes
Power battery stops charging to accumulator cell assembly, charging complete.
9. charging method as claimed in claim 8, it is characterised in that the charging system of the vehicle carries out fault self-checking, and
Fail result is uploaded to entire car controller, and when the charging system of the vehicle breaks down, the entire car controller control
Direct current transducer processed disconnects, complete charge.
10. charging method as claimed in claim 8, it is characterised in that further comprise：The entire car controller is in the electricity
When the temperature of pond group is less than minimum temperature threshold or higher than maximum temperature threshold value, control direct current transducer disconnects, and makes power electric
Pond stops charging to accumulator cell assembly.
11. charging method as claimed in claim 8, it is characterised in that when detecting vehicle for OFF grades of electricity, described
It is further comprising the steps of before S101 steps, the entire car controller detect car door, boot or front hatch cover be in be not turned off
During state, control direct current transducer disconnects, and does not allow electrokinetic cell to be charged to accumulator cell assembly.
12. charging method as claimed in claim 8, it is characterised in that when detecting vehicle for OFF grades of electricity, described
It is further comprising the steps of after S103 steps, the entire car controller detect car door, boot or front hatch cover be in be not turned off shape
During state, control direct current transducer disconnects, and makes electrokinetic cell stop charging to accumulator cell assembly.
13. charging method as claimed in claim 8, it is characterised in that second battery manager is according to battery pack temperature
Difference, control charging DC/DC exports different charging currents to battery pack.
14. charging method as claimed in claim 8, it is characterised in that the second battery manager control charging DC/DC with
The charging modes of constant pressure charge to battery pack.
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| CN201210518504.3A CN103855748B (en) | 2012-12-06 | 2012-12-06 | The charging system and its charging method of a kind of vehicle |
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| CN201210518504.3A CN103855748B (en) | 2012-12-06 | 2012-12-06 | The charging system and its charging method of a kind of vehicle |
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| CN109586382B (en) * | 2018-12-03 | 2024-06-14 | 河南森源重工有限公司 | Charger and charging method thereof |
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