CN112644341B - Power battery heating control method and device before charging and charger - Google Patents

Power battery heating control method and device before charging and charger Download PDF

Info

Publication number
CN112644341B
CN112644341B CN201910959466.7A CN201910959466A CN112644341B CN 112644341 B CN112644341 B CN 112644341B CN 201910959466 A CN201910959466 A CN 201910959466A CN 112644341 B CN112644341 B CN 112644341B
Authority
CN
China
Prior art keywords
power
power supply
charging
power battery
heating
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
Application number
CN201910959466.7A
Other languages
Chinese (zh)
Other versions
CN112644341A (en
Inventor
刘文月
王伟
代康伟
梁海强
易迪华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Electric Vehicle Co Ltd
Original Assignee
Beijing Electric Vehicle Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Electric Vehicle Co Ltd filed Critical Beijing Electric Vehicle Co Ltd
Priority to CN201910959466.7A priority Critical patent/CN112644341B/en
Publication of CN112644341A publication Critical patent/CN112644341A/en
Application granted granted Critical
Publication of CN112644341B publication Critical patent/CN112644341B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • 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
    • 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
    • Y02T90/12—Electric charging stations

Abstract

The invention provides a power battery heating control method and device before charging and a charger, and relates to the field of power battery heating control. The heating control method of the power battery before charging comprises the steps of obtaining power supply parameters of power supply equipment, charging parameters of a vehicle-mounted charger and resistance of a heating film; determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger; judging whether a voltage regulation mode needs to be entered for heating the power battery pack before charging; when the voltage regulation mode needs to be entered, adjusting the output voltage of the power supply equipment according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film to obtain the adjusted voltage; and heating the power battery to a cut-off temperature according to the adjusted voltage. According to the embodiment of the invention, the power of the power battery heating film is adjusted in an output voltage regulation mode, so that the heating stability of the power battery is ensured, and the system robustness is increased.

Description

Power battery heating control method and device before charging and charger
Technical Field
The invention relates to the field of power battery pack heating, in particular to a method and a device for controlling heating of a power battery before charging and a charger.
Background
With the increasing shortage of energy, new energy automobiles become a trend of selection and development of more and more people, and batteries are used as an important part of electric automobiles, so that the performances of all aspects need to be further improved. The current technical trend leads to larger and larger power of the power battery, higher and higher requirements on the heating rate, and larger power of the heating film. Even some heating films have reached 3.1kW, which is twice the minimum ac power supply unit power specified by the national standard.
At present, the power battery heating device is generally a battery heating sheet attached to the power battery and attached to the power battery, which is called as a heating film. The application advantages of the heating film are obvious, the heating arrangement is simple, the cost is low, and a separate battery heating pipeline is not needed. The disadvantage is also relatively significant, however, that the heating power is not adjustable. If as two heating membrane schemes, the cost of power battery heating membrane will promote by a wide margin.
On the premise that the power battery cannot discharge due to the fact that heating power cannot be adjusted, the heating system cannot work normally, and heating is invalid. During the charging process, the power battery discharges due to the fact that the power of the heating film exceeds the power of the power supply equipment, and the charging time is increased.
In the issued patents, most of the proposals are to change the heating parts into liquid cooling, adopt a stepping heating film, and prohibit the user from using low-power supply equipment to solve or avoid the problem even when the battery power is insufficient at low temperature, so that not only is the user experience not good, but also the vehicle cost of the user is indirectly increased.
Disclosure of Invention
The embodiment of the invention provides a heating control method and device for a power battery before charging and a charger, which are used for solving the problems that in the prior art, a heating system cannot normally work on the premise that the power battery cannot discharge due to the fact that the heating power of a heating film is not adjustable, and in the charging process, when the power of the heating film exceeds the power of power supply equipment, the power battery discharges to cause that the charging time is increased or only high-power supply equipment can be selected.
In order to solve the technical problems, the invention adopts the following technical scheme:
a heating control method for a power battery before charging comprises the following steps:
acquiring power supply parameters of power supply equipment, charging parameters of a vehicle-mounted charger and resistance of a heating film;
determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger;
judging whether a voltage regulation mode needs to be entered for heating the power battery pack before charging;
when the voltage regulation mode needs to be entered, adjusting the output voltage of the power supply equipment according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film to obtain the adjusted voltage;
and heating the power battery to a cut-off temperature according to the adjusted voltage.
Further, the acquiring of the power supply parameter ring and the charging parameter of the vehicle-mounted charger of the power supply device includes:
obtaining the maximum output alternating current A1 of the power supply equipment, the maximum transmission current A2 of a charging wire and the self power W of the vehicle-mounted chargerOBC。
Further, the determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger includes:
if the current temperature of the power battery pack does not support charging or the charging current is limited, determining that the power battery pack needs to be heated before charging;
and if the maximum current allowed at the current temperature is greater than the current of the current power supply equipment, the charging current is limited.
Further, whether the power battery pack needs to be heated before being charged in the voltage regulation mode is judged, and the method comprises the following steps:
if the maximum power of the power supply equipment is smaller than the power required by the heating film, determining that the power battery pack needs to be heated before being charged in a voltage regulation mode;
if the maximum power of the power supply equipment is larger than the power required by the heating film, the power battery pack does not need to be heated before being charged in a voltage regulation mode.
Further, the maximum power of the power supply device includes:
according to the maximum output alternating current A1 of the power supply equipment and the maximum power W of the power supply equipmentACMaximum transmission current A2 of charging wire and self power W of vehicle-mounted chargerOBCObtaining the maximum power W of the power supply equipmentAC。
Further, when it is determined that the voltage regulation mode needs to be entered, the output voltage of the power supply device is adjusted according to the power supply parameter of the power supply device, the charging parameter of the vehicle-mounted charger, and the resistance of the heating film, so as to obtain an adjusted voltage, including:
for the current efficiency of the vehicle-mounted charger and the maximum power W of the power supply equipmentACAnd calculating the working power of the current direct current voltage reducer and the resistance of the heating film to obtain the adjusted voltage, wherein the vehicle-mounted charger works at the constant voltage of the adjusted voltage.
Further, after the power battery is heated to the cut-off temperature according to the adjusted voltage, the method further includes:
after the power battery pack is heated to the cut-off temperature, the heating system is turned off, and a normal charging mode and a control flow of the heating system in charging are entered;
and the cutoff temperature is the highest temperature allowed for charging the current power battery pack.
The embodiment of the invention also provides a device for controlling the heating of the power battery before charging, which comprises:
the acquisition module is used for acquiring power supply parameters of the power supply equipment, charging parameters of the vehicle-mounted charger and the resistance of the heating film;
the determining module is used for determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger;
the judging module is used for judging whether the power battery pack needs to be heated before being charged in a voltage regulating mode;
the voltage regulating module is used for regulating the output voltage of the power supply equipment according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film when the voltage regulating module is determined to be in a voltage regulating mode, so as to obtain the regulated voltage;
and the heating module is used for heating the power battery to a cut-off temperature according to the adjusted voltage.
An embodiment of the present invention further provides a controller, including: the processor and the memory are stored with programs executable by the processor, and when the processor executes the programs, the steps of the method are realized.
The embodiment of the invention also provides a charger which comprises the power battery heating control device before charging.
The invention has the beneficial effects that:
in the embodiment of the invention, when the voltage regulation mode needs to be entered, the output voltage of the power supply equipment is adjusted according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film, the adjusted voltage is obtained, and the power of the heating film of the power battery is adjusted in an output voltage regulation mode to meet the power of the power supply equipment. Hardware does not need to be changed, the method can be realized only through software, after system matching, discharging does not need to be carried out through a power battery, the method can be realized only through power supply equipment, the power supply equipment is not limited by the electric quantity of the power battery, meanwhile, requirements are provided for the maximum power of the power supply equipment, the self capacity of a vehicle-mounted charger is considered instead of the capacity of the power supply equipment, and the robustness of the system is improved.
Drawings
FIG. 1 is a schematic diagram illustrating the steps of a method for controlling heating of a power battery before charging in accordance with an embodiment of the present invention;
fig. 2 is a block diagram of a power battery heating control apparatus before charging according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides a method and a device for controlling heating of a power battery before charging and a charger, aiming at the problems that in the prior art, a heating system cannot work normally on the premise that the power battery cannot discharge due to the fact that the heating power of a heating film is not adjustable, and in the charging process, when the power of the heating film exceeds the power of power supply equipment, the power battery discharges to cause that the charging time is increased or only high-power supply equipment can be selected.
As shown in fig. 1, a method for controlling heating of a power battery before charging according to an embodiment of the present invention includes:
step 100, acquiring power supply parameters of power supply equipment, charging parameters of a vehicle-mounted charger and resistance of a heating film;
step 200, determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger;
step 300, judging whether a voltage regulation mode needs to be entered for heating the power battery pack before charging;
step 400, when the voltage regulation mode needs to be entered, adjusting the output voltage of the power supply equipment according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film to obtain the adjusted voltage;
and 500, heating the power battery to a cut-off temperature according to the adjusted voltage.
In the embodiment of the invention, when the voltage regulation mode needs to be entered, the output voltage of the power supply equipment is adjusted according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film, the adjusted voltage is obtained, and the power of the heating film of the power battery is adjusted in an output voltage regulation mode to meet the power of the power supply equipment. Hardware does not need to be changed, the method can be realized only through software, after system matching, discharging does not need to be carried out through a power battery, the method can be realized only through power supply equipment, the power supply equipment is not limited by the electric quantity of the power battery, meanwhile, requirements are provided for the maximum power of the power supply equipment, the self capacity of a vehicle-mounted charger is considered instead of the capacity of the power supply equipment, and the robustness of the system is improved.
Optionally, the acquiring a power supply parameter ring of the power supply device and a charging parameter of the vehicle-mounted charger includes:
obtaining the maximum output alternating current A1 of the power supply equipment, the maximum transmission current A2 of a charging wire and the self power W of the vehicle-mounted chargerOBC。
Optionally, the determining that the power battery pack needs to be heated before charging according to the charging parameter of the vehicle-mounted charger includes:
if the current temperature of the power battery pack does not support charging or the charging current is limited, determining that the power battery pack needs to be heated before charging;
and if the maximum current allowed at the current temperature is greater than the current of the current power supply equipment, the charging current is limited.
Optionally, the determining whether the power battery pack needs to be heated before charging in the voltage regulation mode includes:
if the maximum power of the power supply equipment is smaller than the power required by the heating film, determining that the power battery pack needs to be heated before being charged in a voltage regulation mode;
if the maximum power of the power supply equipment is larger than the power required by the heating film, the power battery pack does not need to be heated before being charged in a voltage regulation mode.
Optionally, the maximum power of the power supply device comprises:
according to the maximum output alternating current A1 of the power supply equipment and the maximum power W of the power supply equipmentACMaximum transmission current A2 of charging wire and self power W of vehicle-mounted chargerOBCObtaining the maximum power W of the power supply equipmentAC；
In one embodiment of the invention, the maximum power W of the power supply equipmentACThe optional calculation method is as follows: wAC＝Min[WOBC,A1×220V,A2×220V]。
Optionally, when it is determined that the voltage regulation mode needs to be entered, adjusting the output voltage of the power supply device according to the power supply parameter of the power supply device, the charging parameter of the vehicle-mounted charger, and the resistance of the heating film to obtain an adjusted voltage, including:
for the current efficiency of the vehicle-mounted charger and the maximum power W of the power supply equipmentACCalculating the working power of the current direct current voltage reducer and the resistance of the heating film to obtain the adjusted voltage, wherein the vehicle-mounted charger works at a constant voltage according to the adjusted voltage;
in an embodiment of the present invention, the optional calculation method of the adjusted voltage includes:
Figure GDA0003645826770000061
wherein U1 is the adjusted voltage;
eta is the current efficiency of the vehicle-mounted charger;
WDCDCthe working power of the current direct current voltage reducer is obtained.
Optionally, after heating the power battery to the cut-off temperature according to the adjusted voltage, the method further includes:
after the power battery pack is heated to the cut-off temperature, the heating system is turned off, and a normal charging mode and a control flow of the heating system in charging are entered;
the cutoff temperature is the maximum temperature allowed by charging of the current power battery pack;
when the heating film heats the power battery pack, all high-voltage systems are enabled, and the vehicle is forced to be in a parking mode.
As shown in fig. 2, an embodiment of the present invention further provides a device for controlling heating of a power battery before charging, including:
the acquisition module 10 is used for acquiring power supply parameters of the power supply equipment, charging parameters of the vehicle-mounted charger and the resistance of the heating film;
the determining module 20 is configured to determine that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger;
the judging module 30 is used for judging whether the power battery pack needs to be heated before charging in the voltage regulating mode;
the voltage regulating module 40 is configured to adjust an output voltage of the power supply device according to a power supply parameter of the power supply device, a charging parameter of the vehicle-mounted charger, and a resistance of the heating film when it is determined that a voltage regulating mode needs to be entered, so as to obtain an adjusted voltage;
and the heating module 50 is used for heating the power battery to a cut-off temperature according to the adjusted voltage.
Specifically, the obtaining module 10 includes:
obtaining power supply equipmentMaximum output ac current a1, maximum charging-line transmission current a2, and vehicle-mounted charger power WOBC。
Optionally, the determining module 20 includes:
if the current temperature of the power battery pack does not support charging or the charging current is limited, determining that the power battery pack needs to be heated before charging;
and if the maximum current allowed at the current temperature is greater than the current of the current power supply equipment, the charging current is limited.
Optionally, the determining module 30 includes:
if the maximum power of the power supply equipment is smaller than the power required by the heating film, determining to enter a voltage regulation mode to heat the power battery pack before charging;
if the maximum power of the power supply equipment is larger than the power required by the heating film, the power battery pack does not need to be heated before being charged in a voltage regulation mode;
wherein the maximum power of the power supply device comprises:
according to the maximum output alternating current A1 of the power supply equipment and the maximum power W of the power supply equipmentACMaximum transmission current A2 of charging wire and self power W of vehicle-mounted chargerOBCObtaining the maximum power W of the power supply equipmentAC；
In one embodiment of the invention, the maximum power W of the power supply equipmentACThe optional calculation method is as follows: wAC＝Min[WOBC,A1×220V,A2×220V]。
Optionally, the voltage regulating module 40 includes:
for the current efficiency of the vehicle-mounted charger and the maximum power W of the power supply equipmentACCalculating the working power of the current direct current voltage reducer and the resistance of the heating film to obtain the adjusted voltage, wherein the vehicle-mounted charger works at the constant voltage of the adjusted voltage;
in an embodiment of the present invention, the optional calculation method of the adjusted voltage includes:
Figure GDA0003645826770000071
wherein U1 is the adjusted voltage;
eta is the current efficiency of the vehicle-mounted charger;
WDCDCthe working power of the current direct current voltage reducer is obtained.
Optionally, the heating module 50 further includes:
after the power battery pack is heated to the cut-off temperature, the heating system is turned off, and a normal charging mode and a control flow of the heating system in charging are entered;
the cutoff temperature is the highest temperature allowed for charging the current power battery pack;
when the heating film heats the power battery pack, all high-voltage systems are enabled, and the vehicle is forced to be in a parking mode.
An embodiment of the present invention further provides a controller, including: the processor, the memory, the said memory stores the program that the said processor can carry out, when the said processor carries out the said program, realize the steps of the above-mentioned method.
The embodiment of the invention also provides a charger which comprises the power battery heating control device before charging.
In the embodiment of the invention, when the voltage regulation mode needs to be entered, the output voltage of the power supply equipment is adjusted according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film, the adjusted voltage is obtained, and the power of the heating film of the power battery is adjusted in an output voltage regulation mode to meet the power of the power supply equipment. Hardware does not need to be changed, the method can be realized only through software, after system matching, discharging does not need to be carried out through a power battery, the method can be realized only through power supply equipment, the power supply equipment is not limited by the electric quantity of the power battery, meanwhile, requirements are provided for the maximum power of the power supply equipment, the self capacity of a vehicle-mounted charger is considered instead of the capacity of the power supply equipment, and the robustness of the system is improved.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims (10)

1. A heating control method for a power battery before charging is characterized by comprising the following steps:
acquiring power supply parameters of power supply equipment, charging parameters of a vehicle-mounted charger and resistance of a heating film;
determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger;
judging whether a voltage regulation mode needs to be entered for heating the power battery pack before charging;
when the voltage regulation mode needs to be entered, adjusting the output voltage of the power supply equipment according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film to obtain the adjusted voltage;
and heating the power battery to a cut-off temperature according to the adjusted voltage.
2. The method for controlling heating of the power battery before charging according to claim 1, wherein the obtaining of the power supply parameter loop of the power supply device and the charging parameter of the vehicle-mounted charger comprises:
obtaining the maximum output alternating current A1 of the power supply equipment, the maximum transmission current A2 of a charging wire and the self power W of the vehicle-mounted chargerOBC。
3. The method for controlling heating of the power battery before charging according to claim 1, wherein determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger comprises:
if the current temperature of the power battery pack does not support charging or the charging current is limited, determining that the power battery pack needs to be heated before charging;
and if the maximum current allowed at the current temperature is greater than the current of the current power supply equipment, the charging current is limited.
4. The method for controlling the heating of the power battery before charging according to claim 2, wherein the step of judging whether the power battery pack needs to be heated before charging by entering a voltage regulation mode comprises the following steps:
if the maximum power of the power supply equipment is smaller than the power required by the heating film, determining that the power battery pack needs to be heated before being charged in a voltage regulation mode;
if the maximum power of the power supply equipment is larger than the power required by the heating film, the power battery pack does not need to be heated before being charged in a voltage regulation mode.
5. The method of claim 4, wherein the maximum power of the power supply device comprises:
according to the maximum output alternating current A1 of the power supply equipment and the maximum power W of the power supply equipmentACMaximum transmission current A2 of charging wire and self power W of vehicle-mounted chargerOBCObtaining the maximum power W of the power supply equipmentAC。
6. The heating control method for the power battery before charging according to claim 5, wherein when it is determined that the voltage regulation mode needs to be entered, the method adjusts the output voltage of the power supply device according to the power supply parameter of the power supply device, the charging parameter of the vehicle-mounted charger, and the resistance of the heating film to obtain an adjusted voltage, and comprises the following steps:
for the current efficiency of the vehicle-mounted charger and the maximum power W of the power supply equipmentACAnd calculating the working power of the current direct current voltage reducer and the resistance of the heating film to obtain the adjusted voltage, wherein the vehicle-mounted charger works at the constant voltage of the adjusted voltage.
7. The method for controlling the heating of the power battery before charging according to claim 1, wherein after the power battery is heated to the cut-off temperature according to the adjusted voltage, the method further comprises:
after the power battery pack is heated to the cut-off temperature, the heating system is turned off, and a normal charging mode and a control flow of the heating system in charging are entered;
and the cutoff temperature is the highest temperature allowed by the current power battery pack charging.
8. A pre-charging power battery heating control device, comprising:
the acquisition module is used for acquiring power supply parameters of the power supply equipment, charging parameters of the vehicle-mounted charger and the resistance of the heating film;
the determining module is used for determining that the power battery pack needs to be heated before charging according to the charging parameters of the vehicle-mounted charger;
the judging module is used for judging whether the power battery pack needs to be heated before being charged in a voltage regulating mode;
the voltage regulating module is used for regulating the output voltage of the power supply equipment according to the power supply parameters of the power supply equipment, the charging parameters of the vehicle-mounted charger and the resistance of the heating film when the voltage regulating module is determined to enter a voltage regulating mode, so as to obtain the regulated voltage;
and the heating module is used for heating the power battery to a cut-off temperature according to the adjusted voltage.
9. A controller, comprising: a processor, a memory, the memory having stored thereon a program executable by the processor, when executing the program, performing the steps of the method of any of claims 1 to 7.
10. An in-vehicle charger characterized by comprising the pre-charging power battery heating control apparatus according to claim 8.
CN201910959466.7A 2019-10-10 2019-10-10 Power battery heating control method and device before charging and charger Active CN112644341B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910959466.7A CN112644341B (en) 2019-10-10 2019-10-10 Power battery heating control method and device before charging and charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910959466.7A CN112644341B (en) 2019-10-10 2019-10-10 Power battery heating control method and device before charging and charger

Publications (2)

Publication Number Publication Date
CN112644341A CN112644341A (en) 2021-04-13
CN112644341B true CN112644341B (en) 2022-06-21

Family

ID=75342756

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910959466.7A Active CN112644341B (en) 2019-10-10 2019-10-10 Power battery heating control method and device before charging and charger

Country Status (1)

Country Link
CN (1) CN112644341B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114670684A (en) * 2021-06-07 2022-06-28 北京新能源汽车股份有限公司 Power battery heating control method, device and equipment and automobile
CN114188638A (en) * 2021-11-15 2022-03-15 海南小鲨鱼智能科技有限公司 Heating structure, heating method, heating device and equipment for power battery

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103419655A (en) * 2012-05-22 2013-12-04 比亚迪股份有限公司 Electric car and electric car power system and battery heating method
CN104044580A (en) * 2013-03-12 2014-09-17 福特全球技术公司 Method and system for controlling electric vehicle while charging
CN104578295A (en) * 2014-12-31 2015-04-29 普天新能源车辆技术有限公司 Vehicle power battery low-temperature charging and heating system and method
JP2016051590A (en) * 2014-08-29 2016-04-11 トヨタ自動車株式会社 vehicle
CN106785114A (en) * 2016-12-21 2017-05-31 常州普莱德新能源电池科技有限公司 A kind of analog analysing method and system for determining heater power density
CN107825968A (en) * 2017-09-18 2018-03-23 南京金龙新能源汽车研究院有限公司 A kind of control system of electric motor car heating battery
CN107878234A (en) * 2017-11-09 2018-04-06 成都雅骏新能源汽车科技股份有限公司 It is a kind of based on adaptive electrokinetic cell heating means
CN109910684A (en) * 2019-03-12 2019-06-21 中国第一汽车股份有限公司 A kind of power battery heating system of electric vehicle and control method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8409052B2 (en) * 2011-04-29 2013-04-02 Delta Electronics, Inc. Starting method for hybrid electric vehicle and system architecture of hybrid electric vehicle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103419655A (en) * 2012-05-22 2013-12-04 比亚迪股份有限公司 Electric car and electric car power system and battery heating method
CN104044580A (en) * 2013-03-12 2014-09-17 福特全球技术公司 Method and system for controlling electric vehicle while charging
JP2016051590A (en) * 2014-08-29 2016-04-11 トヨタ自動車株式会社 vehicle
CN104578295A (en) * 2014-12-31 2015-04-29 普天新能源车辆技术有限公司 Vehicle power battery low-temperature charging and heating system and method
CN106785114A (en) * 2016-12-21 2017-05-31 常州普莱德新能源电池科技有限公司 A kind of analog analysing method and system for determining heater power density
CN107825968A (en) * 2017-09-18 2018-03-23 南京金龙新能源汽车研究院有限公司 A kind of control system of electric motor car heating battery
CN107878234A (en) * 2017-11-09 2018-04-06 成都雅骏新能源汽车科技股份有限公司 It is a kind of based on adaptive electrokinetic cell heating means
CN109910684A (en) * 2019-03-12 2019-06-21 中国第一汽车股份有限公司 A kind of power battery heating system of electric vehicle and control method

Also Published As

Publication number Publication date
CN112644341A (en) 2021-04-13

Similar Documents

Publication Publication Date Title
CN108891276B (en) Charging control method and device for power battery and vehicle
US10439417B2 (en) Battery temperature management and charging system
JP5304844B2 (en) Battery charge control device
JP5668541B2 (en) Vehicle charging control device
CN112644341B (en) Power battery heating control method and device before charging and charger
CN108327706B (en) Power generation control method and system for hybrid vehicle
CN109501619A (en) A kind of power battery method for controlling temperature rise, device, equipment and automobile
RU2015102608A (en) SYSTEM AND METHOD FOR REGULATING THE OPERATION OF THE METAL-AIR BATTERY
CN106463997B (en) Battery charge controller and charge control method
JP2012178899A (en) Charger
KR102160399B1 (en) System and method for optimizing power consumption in a hybrid electric vehicle
CN108110282A (en) Fuel battery engines Poewr control method
CN102208699A (en) Quick pulse charge method with negative pulse discharge
KR20190073151A (en) Method and system for battery charge
CN112383096A (en) Power supply power adjusting method and device and power supply system
EP3709478A1 (en) Charge control device using photovoltaic power generation
JP4666130B2 (en) Fuel cell system
CN114889473A (en) Electric automobile direct-current boost charging control system, control method and vehicle
WO2013097547A1 (en) Motor control method and device, and communication base station
CN106500244A (en) Air-conditioning electric heating controlling method and control device
CN113224413A (en) Charging thermal management control method of battery system
CN205385331U (en) General heavy current constant current charger
JP2005045928A (en) Voltage controller of generator for vehicle
CN112092682B (en) Fuel cell control method and device
JP2019033636A (en) Power supply apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant