CN109435711A - A kind of new-energy automobile low tension battery preventing electric loss system and method - Google Patents
A kind of new-energy automobile low tension battery preventing electric loss system and method Download PDFInfo
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- CN109435711A CN109435711A CN201811298201.9A CN201811298201A CN109435711A CN 109435711 A CN109435711 A CN 109435711A CN 201811298201 A CN201811298201 A CN 201811298201A CN 109435711 A CN109435711 A CN 109435711A
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- energy automobile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/04—Arrangement of batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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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
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- 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
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to new-energy automobile charging system field more particularly to a kind of new-energy automobile low tension battery preventing electric loss system and methods.It include: battery management system, entire car controller, DC-DC converter, low tension battery, power battery, it is characterized by: the battery management system, opens the DC-DC converter in the case where the power battery is in fast charge state as low tension battery power supply.It can not charge to low tension battery when new-energy automobile enters fast charge state, low tension battery leads to low tension battery power shortage because of the continuous drain of battery management system and other low-voltage loads, ultimately causing vehicle can not normally start, the invention detects that after power battery enters fast charge state, it is charged by opening DC-DC converter for low tension battery, on the one hand the power shortage of low tension battery is solved the problems, such as, the charging pile for being on the other hand adapted to different brands due to not needing accessory power supply.
Description
Technical field
The present invention relates to a kind of new-energy automobile charging system field more particularly to a kind of new-energy automobile low tension batteries
Preventing electric loss system and method.
Background technique
Current country's new-energy automobile mainly includes two kinds of batteries, and respectively (hereinafter referred to as low pressure stores low tension battery
Battery) and power high-tension battery (hereinafter referred to as power battery), low tension battery is for giving low pressure components to power, power battery
It mainly powers to high voltage parts, current country's new-energy automobile charging pile mainly divides alternating-current charging pile (hereinafter referred to as trickle charge
Stake), direct-current charging post (hereinafter referred to as fast charge stake), when being charged using fast charge stake, fast charge stake is directly and BMS(power high pressure
Battery management system) interaction, until charging complete, but during the charging process, BMS all in the electricity of consumption low tension battery,
Being not turned off high-power low-voltage load in charging simultaneously will also result in a large amount of losses of low tension battery electricity, may finally cause
Low tension battery power shortage start vehicle can not.
Chinese patent discloses a kind of fast charge stake accessory power supply charging method [application number: CN201710786490.6, disclosure
Number: CN107571752A] the steps include: A, low tension battery power shortage after, by charge plug in rifle accessory power supply give battery management system
System power supply, the battery management system power on wake-up；B, whether the battery management system progress self-test is normal, detects simultaneously
Whether high-voltage interlocking signal is normal, and if abnormal, by bus reporting fault, charging terminates；Enter next step if normal；
C, whether the plug in rifle signal of battery management system detection charging is effective, if not imitating, passes through bus reporting fault, charging knot
Beam；If effectively, into next step；D, the main negative relay of the battery management system control and fast charge relay are attracted；E, institute
Battery management system is stated to charge by waking up direct current transducer to the low tension battery of power shortage；F, the battery management system
System is interacted with charging pile, and the charge parameter of power battery is arranged；F, start to power battery charging.
Although by mending automobile electricity of low tension battery when charging using fast charge stake using accessory power supply
It fills, but the power supply of national regulations charging pile accessory power supply only has 12V, electric current 10A power supply, this data can satisfy normal vehicle
The electricity consumed when fast charge.But pass through market survey, most of client is during vehicle fast charge practical vehicle, vehicle-mounted major part
Low voltage equipment is in running order, such as the charging of music, mobile phone and his electrical equipment, and about electric current is 15A.Compare number
According to consumption is greater than fast charge and mends electricity, there is a possibility that can not charging to low tension battery.It can be seen that new-energy automobile is using fast charge
When stake charging the problem of low tension battery power shortage and solution not yet in effect, thus it is related to a kind of anti-when new-energy automobile carries out fast charge
Only the system of low tension battery power shortage be very it is necessary to.
Summary of the invention
Present invention is generally directed to existing technical problems, propose a kind of new-energy automobile low tension battery preventing electric loss system
System.
In order to solve the above technical problems, the present invention provides technical solutions below:
A kind of new-energy automobile low tension battery preventing electric loss system, comprising: battery management system, entire car controller, DC-DC transformation
Device, low tension battery, power battery, the battery management system, in the case where the power battery is in fast charge state described in unlatching
DC-DC converter is low tension battery power supply.
In the prior art, when new-energy automobile enters fast charge state, battery management system persistently consumes low pressure storage
The electricity of battery.But fast charge state can not charge to low tension battery, and sometimes too long because of the charging time, battery management system
Continuous service and user forget that the low-voltage load closed on vehicle causes low tension battery to consume electricity excessively, eventually lead to new
Energy automobile can not start.Therefore the present invention provides a kind of system, when power battery enters fast charge state, battery management system
DC-DC converter is opened, the supply voltage of external charging facility is converted to the voltage of suitable low tension battery, to be low pressure
Battery charging.It is supplied because of stable power supply, not only efficiently solves the problems, such as low tension battery power shortage, it can also be with
The function of extension refrigeration and heating improves the safety charged under adverse circumstances, while because not having to by accessory power supply, therefore suitable
The charging pile for answering different brands, improves versatility.
Further, the battery management system sends wake-up signal when the power battery is under fast charge state
To the entire car controller.The entire car controller, opening the DC-DC converter according to the wake-up signal received is
The low tension battery power supply.
Further, the battery management system is closed the DC-DC when the power battery terminates fast charge state and is become
Parallel operation.
Further, the battery management system sends sleep signal extremely when the power battery terminates fast charge state
The entire car controller.The entire car controller closes the DC-DC converter according to the sleep signal received.
It further, further include the wake-up line of battery management system described in communication connection and the entire car controller.It is described
Battery management system sends the wake-up signal to the DC-DC converter by the wake-up line.
Further, the battery management system is connect by communication line with external charging facility；The power battery,
It is connect by communication line with external charging facility.The battery management system detects the communication line and the external charging
The DC-DC converter is opened after setting connection.
Further, the battery management system is connect by communication line with external charging facility；The power battery,
It is connect by communication line with external charging facility.The battery management system detects the communication line and the external charging
Setting closes the DC-DC converter after disconnecting.
The present invention also provides a kind of new-energy automobile low tension battery preventing electric loss methods, including following operating procedure: A step
Rapid: when power battery is in fast charge state, opening DC-DC converter by external charging facility is low tension battery power supply.
In the prior art, it when power battery enters fast charge state, cannot charge for A-battery.But in fast charge state
Under, battery management system persistently consumes the electricity of A-battery, and user forgets that closing other low-voltage loads will also result in sometimes
The kwh loss of A-battery, ultimately causing automobile can not normally start.The present invention detects power electric in battery management system
After pond enters fast charge state, DC-DC converter is opened in control, using DC-DC converter by the supply voltage of external charging facility
Be converted to the supply voltage of suitable A-battery charging.In the case where external electrically-charging equipment constantly charges, can be effectively prevented
A-battery because battery management system, other low-voltage loads continuous service caused by A-battery power shortage.
Further, step A includes: step A-1: battery management system detects that the power battery is in fast charge state
When, wake-up signal is sent to entire car controller.Step A-2: entire car controller receives wake-up signal and opens the DC-DC transformation
Device.
Further, step B is executed after step A: the step B includes: step B-1: battery management system detection
When terminating fast charge state in end fast charge state to the power battery, sleep signal is sent to entire car controller.Step B-
2: entire car controller receives sleep signal and closes the DC-DC converter.
Detailed description of the invention
Fig. 1: whole wiring diagram.
Fig. 2: overall flow figure.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
A kind of new-energy automobile low tension battery preventing electric loss system, comprising: battery management system (BMS), entire car controller
(VCU), DC-DC converter (DCDC), low tension battery, power battery.Battery management system and entire car controller pass through wake-up
Line connection, when new-energy automobile starts to charge, power battery, battery management system are connected by communication line and external charging facility
It connects, power battery enters fast charge state, and battery management system sends wake-up signal to entire car controller at this time.Entire car controller root
The DC-DC converter is opened according to the wake-up signal received as low tension battery power supply.
In actual moving process, user can make power battery, battery management system by way of being inserted into fast charge rifle
System is connect with external charging facility, preferably, being connected between power battery and external charging facility by high-voltage wiring harness with will be outer
The high voltage of portion's electrically-charging equipment output is transferred to power battery.Preferably, between battery management system and external charging facility
Communication line be controller local area network's line (CAN line).After being inserted into fast charge rifle, battery management system passes through communication line and outside
Electrically-charging equipment connection, battery management system and external charging facility confirm the fast charge rifle of insertion by carrying out information exchange at this time
Whether effectively, after causing user to be inserted into fast charge rifle with new-energy automobile poor contact or other failures because of fast charge rifle sometimes, electricity
Pond management system determines that fast charge rifle is invalid, and the alarm device of battery management system control at this time sounds an alarm sound, while lighting alarm
Lamp reinserts the operation of fast charge rifle to prompt user to execute, until troubleshooting.
After confirming that fast charge rifle is effective, battery management system wakes up vehicle control by the wake-up line between entire car controller
Device processed, entire car controller issues relay closure report to battery management system by controller local area network's line between the two at this time
Text, if battery management system is not properly received after issuing relay closure message, battery management system terminates this fast charge,
And it sounds an alarm until trouble shooting.After battery management system has correctly received relay closure message, battery management system
The positive relay of power battery master, main negative relay closure are controlled, is closed power battery discharge loop, power battery enters fast at this time
Fill state.
When power battery enters fast charge state, entire car controller passes through the controller local between DC-DC converter
Grid line opens DC-DC converter, and the power supply low pressure of external charging facility is converted to suitable low pressure using DC-DC converter and is stored
The charging voltage of battery, low tension battery also enters charged state at this time.
In order to maintain the normal operation of whole system, DC-DC converter sends transformed power supply by low-voltage line to
Entire car controller, low tension battery also by low-voltage line is battery management system, entire car controller provides operating voltage, while low
Press battery also by low-voltage line be vehicle on other low-voltage loads for example: on-board air conditioner etc. provide operating voltage, facilitate use
Family uses the other equipment on new-energy automobile when carrying out fast charge.
Preferably, power battery can connect DC-DC converter by high-voltage wiring harness, enter fast charge shape in power battery
It is simultaneously low tension battery charging by external charging facility and power battery after state.
After charging, the communication line between battery management system and external charging facility is disconnected, and power battery terminates fastly
State is filled, battery management system sends sleep signal to entire car controller.Entire car controller is closed according to the sleep signal received
Close DC-DC converter.
After charging, user fills battery management system, power battery and outside by way of extracting fast charge rifle
Communication line between electric facility disconnects.Battery management system issues sleep signal to entire car controller and closes entire car controller at this time,
Main positive relay, main negative relay disconnection are controlled simultaneously, disconnect the discharge loop of power battery, power battery terminates fast charge at this time
State.Entire car controller sends instruction and disconnects DC-DC converter simultaneously, and low tension battery terminates fast charge state.
Embodiment two
A kind of new-energy automobile low tension battery preventing electric loss method, including following operating procedure: step A: power battery is in fast
When filling state, opening DC-DC converter by external charging facility is low tension battery power supply.Step A includes: step A-1: electricity
When pond management system detects that the power battery is in fast charge state, wake-up signal is sent to entire car controller.Step A-2:
Entire car controller receives wake-up signal and opens the DC-DC converter.
In actual motion, user makes power battery enter fast charge state by way of being inserted into fast charge rifle, works as cell tube
When reason system detection enters fast charge state to power battery, the wake-up line that will pass through between entire car controller sends wake-up signal
Entire car controller is caused, entire car controller detects whether to be connected to wake-up signal, if entire car controller is not connected to wake-up signal at this time,
It then terminates in this time fast, and controls alarm device and sound an alarm sound and light warning light, user is prompted to re-operate, until failure
It releases, DC-DC converter is opened by the communication line between DC-DC converter after entire car controller receives wake-up signal,
The supply voltage of external charging facility is converted to the low pressure of suitable low tension battery charging by DC-DC converter, thus for
Low tension battery charging.
Step B is executed after step A: the step B includes: step B-1: battery management system detects the power
Battery is in when terminating fast charge state, sends sleep signal to entire car controller.Step B-2: entire car controller receives suspend mode letter
Number close the DC-DC converter.
In actual motion, user makes power battery terminate fast charge state by extracting fast charge rifle, works as battery management system
After detecting that power battery terminates fast charge state, sleep signal is sent by the wake-up line between entire car controller and gives vehicle control
Device processed, entire car controller detects whether to be connected to sleep signal, if entire car controller is not connected to sleep signal at this time, prevents vehicle
Enter starting state, and controls alarm device and sound an alarm the bright warning light of the point of articulation, until sleep signal is received, in vehicle control
Device processed receives and closes DC-DC converter, thus low pressure electric power storage by the communication line between DC-DC converter after sleep signal
Pond terminates to charge.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of new-energy automobile low tension battery preventing electric loss system, comprising: battery management system, entire car controller, DC-DC become
Parallel operation, low tension battery, power battery, it is characterised in that: the battery management system is in fast charge shape in the power battery
The DC-DC converter is opened under state as low tension battery power supply.
2. a kind of new-energy automobile low tension battery preventing electric loss system according to claim 1, it is characterised in that: the electricity
Pond management system sends wake-up signal when the power battery is under fast charge state to the entire car controller；
The entire car controller, opening the DC-DC converter according to the wake-up signal received is the low pressure electric power storage
Pond power supply.
3. a kind of new-energy automobile low tension battery preventing electric loss system according to claim 1, it is characterised in that: the electricity
Pond management system closes the DC-DC converter when the power battery terminates fast charge state.
4. a kind of new-energy automobile low tension battery preventing electric loss system according to claim 3, it is characterised in that: the electricity
Pond management system sends sleep signal when the power battery terminates fast charge state to the entire car controller；
The entire car controller closes the DC-DC converter according to the sleep signal received.
5. a kind of new-energy automobile low tension battery preventing electric loss system according to claim 1, it is characterised in that: further include
The wake-up line of battery management system described in communication connection and the entire car controller；
The battery management system sends the wake-up signal to the DC-DC converter by the wake-up line.
6. a kind of new-energy automobile low tension battery preventing electric loss system according to claim 1, it is characterised in that: the electricity
Pond management system is connect by communication line with external charging facility；
The power battery is connect with external charging facility；
The battery management system detects the unlatching DC-DC after the communication line and external charging setting connection
Converter.
7. a kind of new-energy automobile low tension battery preventing electric loss system according to claim 1, it is characterised in that: the electricity
Pond management system is connect by communication line with external charging facility；
The power battery is connect with external charging facility；
The battery management system detects that the communication line and external charging setting disconnect the closing DC-DC later and become
Parallel operation.
8. a kind of new-energy automobile low tension battery preventing electric loss method, it is characterised in that: including following operating procedure:
Step A: when power battery is in fast charge state, opening DC-DC converter by external charging facility is low tension battery
Power supply.
9. a kind of new-energy automobile low tension battery preventing electric loss method according to claim 8, it is characterised in that: step A
Include:
Step A-1: when battery management system detects that the power battery is in fast charge state, wake-up signal is sent to vehicle control
Device processed；
Step A-2: entire car controller receives wake-up signal and opens the DC-DC converter.
10. a kind of new-energy automobile low tension battery preventing electric loss method according to claim 8, it is characterised in that: in step
Rapid A executes step B later:
The step B includes:
Step B-1: when battery management system detects that the power battery terminates fast charge state, sleep signal is sent to vehicle control
Device processed；
Step B-2: entire car controller receives sleep signal and closes the DC-DC converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811298201.9A CN109435711A (en) | 2018-11-02 | 2018-11-02 | A kind of new-energy automobile low tension battery preventing electric loss system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298201.9A CN109435711A (en) | 2018-11-02 | 2018-11-02 | A kind of new-energy automobile low tension battery preventing electric loss system and method |
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ID=65550360
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927573A (en) * | 2019-04-03 | 2019-06-25 | 上海汽车集团股份有限公司 | New energy bus high pressure integrated control system and its method |
| CN110154796A (en) * | 2019-04-19 | 2019-08-23 | 南京金龙客车制造有限公司 | A method of Europe superscript charging is solved without accessory power supply |
| CN110356263A (en) * | 2019-06-24 | 2019-10-22 | 上海伊控动力系统有限公司 | The wake-up structure and awakening method of a kind of electronic logistic car under charging scenarios |
| CN111942200A (en) * | 2020-07-24 | 2020-11-17 | 奇瑞商用车（安徽）有限公司 | Charging control circuit and control method of vehicle-mounted low-voltage controller |
| CN112277727A (en) * | 2020-10-22 | 2021-01-29 | 奇瑞新能源汽车股份有限公司 | Charging control circuit and charging control method |
| CN113013970A (en) * | 2021-01-28 | 2021-06-22 | 浙江合众新能源汽车有限公司 | Electric automobile battery feed recovery system |
| CN113165524A (en) * | 2020-08-10 | 2021-07-23 | 深圳欣锐科技股份有限公司 | Vehicle-mounted low-voltage battery charging circuit and electric automobile |
| CN113442746A (en) * | 2021-06-28 | 2021-09-28 | 奇瑞新能源汽车股份有限公司 | High-voltage discharge method and device of power battery, vehicle and storage medium |
| CN113879142A (en) * | 2021-09-13 | 2022-01-04 | 合众新能源汽车有限公司 | Intelligent emergency starting system and method for range-extended electric automobile |
| CN114013279A (en) * | 2020-07-17 | 2022-02-08 | 上海汽车集团股份有限公司 | Power battery discharging equipment and discharging control method |
| CN114161930A (en) * | 2021-11-26 | 2022-03-11 | 三一汽车起重机械有限公司 | Storage battery power shortage prevention method, controller and control system thereof, and engineering vehicle |
| CN114312373A (en) * | 2020-09-30 | 2022-04-12 | 比亚迪股份有限公司 | DC charging system and method |
| CN115214502A (en) * | 2021-06-28 | 2022-10-21 | 广州汽车集团股份有限公司 | Vehicle power shortage detection and processing method, device and system based on gateway |
| CN117360310A (en) * | 2023-12-07 | 2024-01-09 | 成都壹为新能源汽车有限公司 | Vehicle charging control method and system using extended-range power battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109927573A (en) * | 2019-04-03 | 2019-06-25 | 上海汽车集团股份有限公司 | New energy bus high pressure integrated control system and its method |
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| CN114013279B (en) * | 2020-07-17 | 2023-09-29 | 上海汽车集团股份有限公司 | Power battery discharging device and discharging control method |
| CN114013279A (en) * | 2020-07-17 | 2022-02-08 | 上海汽车集团股份有限公司 | Power battery discharging equipment and discharging control method |
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| CN113165524B (en) * | 2020-08-10 | 2023-10-20 | 深圳欣锐科技股份有限公司 | Vehicle-mounted low-voltage battery charging circuit and electric automobile |
| CN113165524A (en) * | 2020-08-10 | 2021-07-23 | 深圳欣锐科技股份有限公司 | Vehicle-mounted low-voltage battery charging circuit and electric automobile |
| CN114312373A (en) * | 2020-09-30 | 2022-04-12 | 比亚迪股份有限公司 | DC charging system and method |
| CN114312373B (en) * | 2020-09-30 | 2023-05-05 | 比亚迪股份有限公司 | DC charging system and method |
| CN112277727A (en) * | 2020-10-22 | 2021-01-29 | 奇瑞新能源汽车股份有限公司 | Charging control circuit and charging control method |
| CN113013970A (en) * | 2021-01-28 | 2021-06-22 | 浙江合众新能源汽车有限公司 | Electric automobile battery feed recovery system |
| CN115214502A (en) * | 2021-06-28 | 2022-10-21 | 广州汽车集团股份有限公司 | Vehicle power shortage detection and processing method, device and system based on gateway |
| CN113442746A (en) * | 2021-06-28 | 2021-09-28 | 奇瑞新能源汽车股份有限公司 | High-voltage discharge method and device of power battery, vehicle and storage medium |
| CN113879142A (en) * | 2021-09-13 | 2022-01-04 | 合众新能源汽车有限公司 | Intelligent emergency starting system and method for range-extended electric automobile |
| CN114161930A (en) * | 2021-11-26 | 2022-03-11 | 三一汽车起重机械有限公司 | Storage battery power shortage prevention method, controller and control system thereof, and engineering vehicle |
| CN117360310A (en) * | 2023-12-07 | 2024-01-09 | 成都壹为新能源汽车有限公司 | Vehicle charging control method and system using extended-range power battery |
| CN117360310B (en) * | 2023-12-07 | 2024-02-09 | 成都壹为新能源汽车有限公司 | Vehicle charging control method and system using extended-range power battery |
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