CN109703415B - Charging current adjusting method and device and electric automobile - Google Patents
Charging current adjusting method and device and electric automobile Download PDFInfo
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- CN109703415B CN109703415B CN201811623653.XA CN201811623653A CN109703415B CN 109703415 B CN109703415 B CN 109703415B CN 201811623653 A CN201811623653 A CN 201811623653A CN 109703415 B CN109703415 B CN 109703415B
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- 238000004378 air conditioning Methods 0.000 claims abstract description 137
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- 230000008569 process Effects 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
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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
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Abstract
The invention provides a method and a device for adjusting charging current and an electric automobile, wherein the method for adjusting the charging current comprises the following steps: receiving a variable power request message sent by an air conditioning system; according to the variable power request message, when the output power of the air conditioning system is determined to be allowed to be adjusted, calculating to obtain a first charging current according to the required power of the air conditioning system; and controlling the air conditioning system to adjust the output power, and charging the power battery through the first charging current. After receiving a variable power request message sent by an air conditioning system, if the output power of the air conditioning system is determined to be allowed to be adjusted, calculating to obtain a first charging current; and then after the air conditioning system is controlled to adjust the output power, the power battery is directly charged by the obtained first charging current, so that the situation that the charging current is not changed in time is avoided, and the influence on the charging time is eliminated.
Description
Technical Field
The invention relates to the field of electric automobile charging, in particular to a charging current adjusting method and device and an electric automobile.
Background
Along with the gradual increase of the driving range of the electric automobile, a battery temperature control system is improved day by day, high-voltage devices of the whole automobile are increased gradually, and the consumption of electric energy in a power battery is increased gradually; in order to ensure the charging time, the charging power needs to be compensated and corrected when the high-voltage device is in a working state, so that the charging performance of the power battery is improved. Specifically, in the charging process of the electric automobile, due to consumption of a high-voltage device, an actual current value for charging the power battery is smaller than a target current value, and the target current value is a current value required by charging the power battery without consumption; therefore, it is necessary to add a compensation current to increase the actual current value during the charging process.
If the output power of the air conditioning system changes, the compensation current is recalculated to compensate the actual charging current after the output power of the air conditioning system changes.
However, the compensation current is recalculated after the change of the output power of the air conditioning system is detected; and a certain time is also required for recalculating the compensation current, which causes that the time period from when the output power of the air conditioning system is changed to when the compensation current is recalculated and the actual charging current is compensated is too long, the charging current is not changed in time, and thus the charging time of the vehicle is affected.
Disclosure of Invention
The invention provides a charging current adjusting method and device and an electric automobile, and aims to solve the problem that in the prior art, after the output power of an air conditioning system is changed, the charging current is not changed timely, so that the charging time of a vehicle is influenced.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a method of adjusting a charging current, including:
receiving a variable power request message sent by an air conditioning system;
according to the variable power request message, when the output power of the air conditioning system is determined to be allowed to be adjusted, calculating to obtain a first charging current according to the required power of the air conditioning system;
and controlling the air conditioning system to adjust the output power, and charging the power battery through the first charging current.
Further, the variable power request message is transmitted when the output power of the air conditioning system needs to be increased or decreased.
Further, the step of determining, according to the variable power request message, that the output power of the air conditioning system is allowed to be adjusted includes:
when the variable power request message indicates that the output power of the air conditioning system needs to be increased, acquiring the consumed power of a high-voltage device and the charging power when a power battery is charged, wherein the high-voltage device is an electronic device which is connected with the power battery and consumes the electric quantity of the power battery;
and when the sum of the consumed power and the charging power is less than preset power, determining that the output power of the air conditioning system is allowed to be increased.
Further, the step of calculating the first charging current according to the required power of the air conditioning system includes:
acquiring the required power of the air conditioning system after the output power is increased;
calculating to obtain compensation current according to the required power;
and calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
Further, the step of determining, according to the variable power request message, that the output power of the air conditioning system is allowed to be adjusted includes:
when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, acquiring the charging power when the power battery is charged;
and when the charging power is less than or equal to the preset power, determining that the output power of the air conditioning system is allowed to be reduced.
Further, the step of calculating the first charging current according to the required power of the air conditioning system includes:
acquiring the required power of the air conditioning system after the output power is reduced;
calculating to obtain compensation current according to the required power;
and calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
According to still another aspect of the present invention, there is provided a charging current adjusting apparatus including:
the receiving module is used for receiving a variable power request message sent by the air conditioning system;
the calculation module is used for calculating to obtain a first charging current according to the required power of the air conditioning system when the output power of the air conditioning system is determined to be allowed to be adjusted according to the variable power request message;
and the control module is used for controlling the air conditioning system to adjust the output power and charging the power battery through the first charging current.
Further, the calculation module includes:
a first obtaining unit, configured to obtain, when the variable power request message indicates that output power of the air conditioning system needs to be increased, consumed power of a high-voltage device and charging power for charging a power battery, where the high-voltage device is an electronic device that is connected to the power battery and consumes electric quantity of the power battery;
a first determination unit configured to determine that the output power of the air conditioning system is allowed to be increased when a sum of the consumed power and the charging power is less than a preset power.
Further, the calculation module further comprises:
the second acquisition unit is used for acquiring the required power of the air conditioning system after the output power is increased;
the first calculating unit is used for calculating to obtain compensation current according to the required power;
and the second calculation unit is used for calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
Further, the calculation module includes:
a third obtaining unit, configured to obtain, when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, a charging power when the power battery is charged;
and the second determination unit is used for determining that the output power of the air conditioning system is allowed to be reduced when the charging power is less than or equal to the preset power.
Further, the calculation module includes:
the fourth acquisition unit is used for acquiring the required power of the air conditioning system after the output power is reduced;
the third calculating unit is used for calculating to obtain compensation current according to the required power;
and the fourth calculating unit is used for calculating to obtain the first charging current according to the compensation current and the second charging current when the power battery is charged without consumption.
According to still another aspect of the present invention, there is provided an electric vehicle including the charging current adjusting apparatus as described above.
The invention has the beneficial effects that:
according to the technical scheme, after a variable power request message sent by an air conditioning system is received, if the output power of the air conditioning system is determined to be allowed to be adjusted, a first charging current is calculated; and then after the air conditioning system is controlled to adjust the output power, the power battery is directly charged by the obtained first charging current, so that the situation that the charging current is not changed in time is avoided, and the influence on the charging time is eliminated.
Drawings
Fig. 1 is a schematic diagram illustrating a method for adjusting a charging current according to an embodiment of the invention;
FIG. 2 is a schematic diagram illustrating the steps provided by the embodiment of the invention to determine whether to allow the output power of the air conditioning system to be increased;
FIG. 3 is a schematic diagram illustrating a step of obtaining a target current required after an output power of an air conditioning system is increased according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the steps provided by the embodiment of the invention to determine whether to allow the output power of the air conditioning system to be reduced;
FIG. 5 is a schematic diagram illustrating a step of obtaining a target current required after the output power of the air conditioning system is reduced according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating an application of a method for adjusting a charging current according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a charging current adjusting apparatus according to an embodiment of the invention;
FIG. 8 is a schematic diagram of a computing module provided by an embodiment of the invention;
fig. 9 is a schematic view illustrating an application of the charging current adjusting apparatus according to the embodiment of the present invention.
Description of reference numerals:
71. a receiving module; 72. a calculation module; 721. a first acquisition unit; 722. a first determination unit; 723. a second acquisition unit; 724. a first calculation unit; 725. a second calculation unit; 726. a third acquisition unit; 727. a second determination unit; 728. a fourth acquisition unit; 729. a third calculation unit; 720. a fourth calculation unit; 73. a control module; 91. a battery management system; 92. an electronic temperature control system; 93. a high voltage device; 94. a refrigeration device; 95. a heating device; 96. fill electric pile.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a method for adjusting a charging current, where the method for adjusting the charging current includes:
s11: receiving a variable power request message sent by an air conditioning system;
it should be noted that the variable power request message is transmitted when the output power of the air conditioning system needs to be increased or decreased.
S12: according to the variable power request message, when the output power of the air conditioning system is determined to be allowed to be adjusted, calculating to obtain a first charging current according to the required power of the air conditioning system;
it should be noted that the judgment of whether to allow the output power of the air conditioning system to be adjusted can be made by the battery management system; wherein adjusting the output power of the air conditioning system includes boosting the output power of the air conditioning system and reducing the output power of the air conditioning system. The required power is the output power after the air conditioning system is adjusted.
S13: and controlling the air conditioning system to adjust the output power, and charging the power battery through the first charging current.
It should be noted that, after the air conditioning system adjusts the output power, the target current is adjusted to the first charging current, and the power battery is charged by the calculated first charging current.
In the embodiment of the invention, after a variable power request message sent by an air conditioning system is received, if the output power of the air conditioning system is determined to be allowed to be adjusted, a first charging current is calculated; and then after the air conditioning system is controlled to adjust the output power, the power battery is directly charged by the obtained first charging current, so that the situation that the charging current is not changed in time is avoided, and the influence on the charging time is eliminated.
As shown in fig. 2, in order to determine whether to allow the output power of the air conditioning system to be increased, on the basis of the above embodiment of the present invention, in the embodiment of the present invention, the step of determining that the output power of the air conditioning system is allowed to be adjusted according to the variable power request message includes:
s21: when the variable power request message indicates that the output power of the air conditioning system needs to be increased, acquiring the consumed power of a high-voltage device and the charging power for charging a power battery, wherein the high-voltage device is an electronic device which is connected with the power battery and consumes the electric quantity of the power battery;
it should be noted that the need for an increase in the output power of the air conditioning system may be, but is not limited to, raising the gear of the air conditioning system. The high-voltage device comprises a plurality of electronic devices such as an air conditioning system and the like and is used for consuming the electric quantity of the power battery. And the charging power of the power battery during charging is calculated according to the actual charging current and the actual charging voltage in the charging process.
S22: and when the sum of the consumed power and the charging power is less than the preset power, determining that the output power of the air conditioning system is allowed to be increased.
It should be noted that the preset power is determined according to the maximum output power of the power battery, and when the sum of the consumed power and the charging power is greater than or equal to the preset power, if the output power of the air conditioning system is increased, the high-voltage device and the power battery are easily damaged.
As shown in fig. 3, in order to obtain the target current required after the output power of the air conditioning system is increased, on the basis of the above embodiments of the present invention, in the embodiment of the present invention, the step of calculating the first charging current according to the required power of the air conditioning system includes:
s31: acquiring the required power of the air conditioning system after the output power is increased;
s32: calculating to obtain compensation current according to the required power;
s33: and calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
It should be noted that, when the first charging current is equal to the sum of the compensation current and the second charging current, and the target current is adjusted to the first charging current, the charging time of the vehicle can be ensured when the air conditioning system increases the power consumption.
As shown in fig. 4, in order to determine whether to allow the output power of the air conditioning system to be reduced, on the basis of the above embodiments of the present invention, in an embodiment of the present invention, the step of determining that the output power of the air conditioning system is allowed to be adjusted according to the variable power request message includes:
s41: when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, acquiring the charging power when the power battery is charged;
it should be noted that the reduction in the output power requirement of the air conditioning system may be, but is not limited to, lowering the gear of the air conditioning system. And the charging power of the power battery during charging is calculated according to the actual charging current and the actual charging voltage in the charging process.
S42: and when the charging power is less than or equal to the preset power, determining that the output power of the air conditioning system is allowed to be reduced.
It should be noted that the preset power may be set to a value greater than or equal to the charging power, that is, when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, the output power of the air conditioning system is always allowed to be reduced, and preferably, the battery management system determines whether the output power of the air conditioning system is allowed to be reduced.
As shown in fig. 5, in order to obtain the target current required after the output power of the air conditioning system is reduced, on the basis of the above embodiments of the present invention, in an embodiment of the present invention, the step of calculating the first charging current according to the required power of the air conditioning system includes:
s51: acquiring the required power of the air conditioning system after the output power is reduced;
s52: calculating to obtain compensation current according to the required power;
s53: and calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
It should be noted that, when the first charging current is equal to the sum of the compensation current and the second charging current, and the target current is adjusted to the first charging current, the charging time of the vehicle can be ensured when the air conditioning system reduces the power consumption.
As shown in fig. 6, an application schematic diagram of a method for adjusting a charging current according to an embodiment of the present invention includes:
s601: starting;
s602: determining that the vehicle is in a charging process;
s603: judging whether the high-voltage device is in a working state, if so, executing S604, and otherwise, executing S609; the high-voltage device is an electronic device which is connected with the power battery and consumes the electric quantity of the power battery;
s604: calculating to obtain a compensation current value according to the consumption power of the high-voltage device, and performing current compensation on a target current through the compensation current value, wherein the target current is the current required by the power battery when the power battery is charged without consumption;
s605: receiving a variable power request message of an air conditioning system;
s606: judging whether the output power of the air conditioning system is allowed to be adjusted or not through a battery management system, if so, recalculating to obtain a compensation current value, and performing current compensation on the target current; and executing S607, if not, executing S609;
s607: the output power of the air conditioning system is changed, and the output power of the air conditioning system is changed by changing the power of a refrigerating device or a heating device in the air conditioning system;
s608: charging the power battery according to the current value obtained after current compensation is carried out on the target current in the step S606;
s609: continuing to charge;
s610: fully charging;
s611: and (6) ending.
As shown in fig. 7 and 8, according to still another aspect of the present invention, there is provided a charging current adjusting apparatus including:
a receiving module 71, configured to receive a variable power request message sent by an air conditioning system;
the calculating module 72 is configured to calculate, according to the variable power request message, a first charging current according to a required power of the air conditioning system when determining that the output power of the air conditioning system is allowed to be adjusted;
and the control module 73 is used for controlling the air conditioning system to adjust the output power and charging the power battery through the first charging current.
Wherein, the calculating module 72 comprises:
a first obtaining unit 721, configured to obtain power consumption of a high-voltage device and charging power when the variable power request message indicates that the output power of the air conditioning system needs to be increased, where the high-voltage device is an electronic device that is connected to the power battery and consumes electric power of the power battery;
the first determining unit 722 is configured to determine that the output power of the air conditioning system is allowed to be increased when the sum of the consumed power and the charging power is less than a preset power.
A second obtaining unit 723, configured to obtain required power of the air conditioning system after the output power is increased;
the first calculation unit 724 is used for calculating to obtain a compensation current according to the required power;
the second calculating unit 725 is configured to calculate the first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
Preferably, the calculation module 72 includes:
a third obtaining unit 726, configured to obtain, when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, a charging power when the power battery is charged;
a second determining unit 727, configured to determine to allow the output power of the air conditioning system to be reduced when the charging power is less than or equal to the preset power.
A fourth obtaining unit 728, configured to obtain a required power of the air conditioning system after the output power is reduced;
the third calculating unit 729 is configured to calculate a compensation current according to the required power;
the fourth calculating unit 720 is configured to calculate the first charging current according to the compensation current and the second charging current when the power battery is charged without consumption.
Wherein the variable power request message is transmitted when the output power of the air conditioning system needs to be increased or decreased.
In the embodiment of the invention, after a variable power request message sent by an air conditioning system is received, if the output power of the air conditioning system is determined to be allowed to be adjusted, a first charging current is calculated; and then after the air conditioning system is controlled to adjust the output power, the power battery is directly charged by the obtained first charging current, so that the situation that the charging current is not changed in time is avoided, and the influence on the charging time is eliminated.
As shown in fig. 9, an application schematic diagram of the charging current adjusting apparatus according to the embodiment of the present invention includes: the system comprises a battery management system 91, an electronic temperature control system 92 and a high-voltage device 93 which are connected with the battery management system 91, and a refrigerating device 94 and a heating device 95 which are connected with the electronic temperature control system 92, wherein a charging pile 96 is connected with the battery management system 91;
when the battery management system 91 detects a variable power request message of the air conditioning system, judging whether the air conditioning system is allowed to adjust the output power; if the output power is allowed to be adjusted, the power of the cooling device 94 or the heating device 95 is adjusted by the electronic temperature control system 92 to change the output power of the air conditioning system, preferably, the air conditioning system includes: the first air conditioning module is arranged in the passenger cabin and used for heating or refrigerating the passenger cabin; and the second air conditioning module is used for heating the power battery.
According to another aspect of the present invention, an electric vehicle is provided, which includes the charging current adjusting device provided in the above embodiments of the present invention.
In the embodiment of the invention, after a variable power request message sent by an air conditioning system is received, if the output power of the air conditioning system is determined to be allowed to be adjusted, a first charging current is calculated; and then after the air conditioning system is controlled to adjust the output power, the power battery is directly charged by the obtained first charging current, so that the situation that the charging current is not changed in time is avoided, and the influence on the charging time is eliminated.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
Claims (11)
1. A method for adjusting a charging current, comprising:
receiving a variable power request message sent by an air conditioning system, wherein the variable power request message is sent when the output power of the air conditioning system needs to be increased or decreased;
according to the variable power request message, when the output power of the air conditioning system is determined to be allowed to be adjusted, calculating to obtain a first charging current according to the required power of the air conditioning system;
and controlling the air conditioning system to adjust the output power, and charging the power battery through the first charging current.
2. The method for adjusting charging current according to claim 1, wherein the step of determining permission to adjust the output power of the air conditioning system according to the variable power request message comprises:
when the variable power request message indicates that the output power of the air conditioning system needs to be increased, acquiring the consumed power of a high-voltage device and the charging power when a power battery is charged, wherein the high-voltage device is an electronic device which is connected with the power battery and consumes the electric quantity of the power battery;
and when the sum of the consumed power and the charging power is less than preset power, determining that the output power of the air conditioning system is allowed to be increased.
3. The method for adjusting charging current according to claim 2, wherein the step of calculating the first charging current according to the power demand of the air conditioning system comprises:
acquiring the required power of the air conditioning system after the output power is increased;
calculating to obtain compensation current according to the required power;
and calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
4. The method for adjusting charging current according to claim 1, wherein the step of determining permission to adjust the output power of the air conditioning system according to the variable power request message comprises:
when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, acquiring the charging power when the power battery is charged;
and when the charging power is less than or equal to the preset power, determining that the output power of the air conditioning system is allowed to be reduced.
5. The method for adjusting charging current according to claim 4, wherein the step of calculating the first charging current according to the power demand of the air conditioning system comprises:
acquiring the required power of the air conditioning system after the output power is reduced;
calculating to obtain compensation current according to the required power;
and calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
6. A device for adjusting a charging current, comprising:
the system comprises a receiving module, a sending module and a control module, wherein the receiving module is used for receiving a variable power request message sent by an air conditioning system, and the variable power request message is sent when the output power of the air conditioning system needs to be increased or decreased;
the calculation module is used for calculating to obtain a first charging current according to the required power of the air conditioning system when the output power of the air conditioning system is determined to be allowed to be adjusted according to the variable power request message;
and the control module is used for controlling the air conditioning system to adjust the output power and charging the power battery through the first charging current.
7. The device for adjusting charging current according to claim 6, wherein the calculating module comprises:
a first obtaining unit, configured to obtain, when the variable power request message indicates that output power of the air conditioning system needs to be increased, consumed power of a high-voltage device and charging power for charging a power battery, where the high-voltage device is an electronic device that is connected to the power battery and consumes electric quantity of the power battery;
a first determination unit configured to determine that the output power of the air conditioning system is allowed to be increased when a sum of the consumed power and the charging power is less than a preset power.
8. The device for adjusting charging current according to claim 7, wherein the calculating module further comprises:
the second acquisition unit is used for acquiring the required power of the air conditioning system after the output power is increased;
the first calculating unit is used for calculating to obtain compensation current according to the required power;
and the second calculation unit is used for calculating to obtain a first charging current according to the compensation current and a second charging current when the power battery is charged without consumption.
9. The device for adjusting charging current according to claim 6, wherein the calculating module comprises:
a third obtaining unit, configured to obtain, when the variable power request message indicates that the output power of the air conditioning system needs to be reduced, a charging power when the power battery is charged;
and the second determination unit is used for determining that the output power of the air conditioning system is allowed to be reduced when the charging power is less than or equal to the preset power.
10. The device for adjusting charging current according to claim 9, wherein the calculating module comprises:
the fourth acquisition unit is used for acquiring the required power of the air conditioning system after the output power is reduced;
the third calculating unit is used for calculating to obtain compensation current according to the required power;
and the fourth calculating unit is used for calculating to obtain the first charging current according to the compensation current and the second charging current when the power battery is charged without consumption.
11. An electric vehicle, comprising: the device for adjusting charging current according to any one of claims 6 to 10.
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| CN112776660A (en) * | 2019-11-05 | 2021-05-11 | 北京新能源汽车股份有限公司 | Charging control method of electric automobile, vehicle control unit, system and electric automobile |
| CN110920464B (en) * | 2019-12-03 | 2021-04-30 | 神龙汽车有限公司 | Electric automobile charging coordination control method and electric automobile |
| CN114256893A (en) * | 2020-09-23 | 2022-03-29 | 北京新能源汽车股份有限公司 | Charging control method, device and equipment and automobile |
| CN112092671A (en) * | 2020-09-28 | 2020-12-18 | 恒大新能源汽车投资控股集团有限公司 | Charging control method, device, equipment and storage medium |
| CN114670692A (en) * | 2021-05-31 | 2022-06-28 | 北京新能源汽车股份有限公司 | Charging control method, device and equipment and automobile |
| CN113346592B (en) * | 2021-06-17 | 2024-04-16 | 宁波吉利汽车研究开发有限公司 | Battery charging control method and device and vehicle |
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| US5703470A (en) * | 1996-05-29 | 1997-12-30 | Motorola, Inc. | Battery charger with power dissipation control |
| KR101181186B1 (en) * | 2010-10-20 | 2012-09-18 | 현대자동차주식회사 | Telematics for remote control of air-conditioning and remote air-conditioning control method using the same |
| CN107054145A (en) * | 2017-04-28 | 2017-08-18 | 北京新能源汽车股份有限公司 | Charging control method and device, vehicle control unit and electric vehicle |
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2018
- 2018-12-28 CN CN201811623653.XA patent/CN109703415B/en active Active
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