CN108891276B - Charging control method and device for power battery and vehicle - Google Patents
Charging control method and device for power battery and vehicle Download PDFInfo
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Abstract
The disclosure relates to a charging control method and device for a power battery and a vehicle. The method comprises the following steps: when a charging instruction for charging the power battery is received, judging whether the temperature of the power battery needs to be adjusted; when the power battery needs to be adjusted in temperature, acquiring the maximum output power of the charging pile; determining a charging control strategy of the power battery according to the maximum output power of the charging pile, wherein the charging control strategy comprises a power supply strategy of a temperature adjusting device for adjusting the temperature of the power battery; and controlling the power battery to be charged according to the determined charging control strategy, and controlling the temperature regulating device to be powered. Therefore, the rapid heating or cooling of the power battery can be realized, and the problem of over-discharge of the power battery caused by the work of the battery heating device or the battery cooling device is effectively avoided, so that the cycle life of the power battery is prolonged, and the charging time is shortened.
Description
Technical Field
The disclosure relates to the field of vehicle control, in particular to a charging control method and device for a power battery and a vehicle.
Background
With the increasing emphasis on energy and environmental issues, electric vehicles are becoming more and more popular with manufacturers and users. The electric vehicle is provided with a power battery, the charging pile can be connected with a vehicle-mounted charger in the electric vehicle, and the power battery is charged after alternating current output by the charging pile is converted into direct current by the vehicle-mounted charger.
The electrochemical characteristics of the power battery determine that the cycle life is influenced by charging at a high temperature or a low temperature. Therefore, the power battery prohibits charging or allows only small current charging in an environment where the temperature is too high or too low. In many electric vehicles, power battery systems are provided with thermal management to improve the cycle life and reduce the charging time of the power battery.
Specifically, a battery heating device and a battery cooling device are provided in the electric vehicle for heating or cooling the power battery. And, the battery heating device and the battery cooling device have fixed power supply strategies.
Disclosure of Invention
The purpose of the disclosure is to provide a simple and practical charging control method and device for a power battery and a vehicle.
In order to achieve the above object, the present disclosure provides a charging control method of a power battery. The method comprises the following steps: when a charging instruction for charging the power battery is received, judging whether the temperature of the power battery needs to be adjusted; when the power battery needs to be adjusted in temperature, acquiring the maximum output power of the charging pile; determining a charging control strategy of the power battery according to the maximum output power of the charging pile, wherein the charging control strategy comprises a power supply strategy of a temperature adjusting device for adjusting the temperature of the power battery; and controlling the power battery to be charged according to the determined charging control strategy, and controlling the temperature regulating device to be powered.
Optionally, when a charging instruction for charging the power battery is received, the determining whether the temperature of the power battery needs to be adjusted includes: when a charging instruction for charging the power battery is received and the temperature of the power battery is lower than a preset first temperature threshold value, determining that the power battery needs to be heated, and when the charging instruction for charging the power battery is received and the temperature of the power battery is higher than a preset second temperature threshold value, determining that the power battery needs to be cooled, wherein the preset first temperature threshold value is smaller than the preset second temperature threshold value;
or,
when a charging instruction for charging the power battery is received, the ambient temperature is lower than a preset third temperature threshold value, and the time length after the vehicle is shut down is longer than a preset time length, the power battery is judged to be required to be heated, when the charging instruction for charging the power battery is received, and the ambient temperature is higher than a preset fourth temperature threshold value, the power battery is judged to be required to be cooled, and the preset third temperature threshold value is smaller than the preset fourth temperature threshold value.
Optionally, the step of determining the charging control strategy of the power battery according to the maximum output power of the charging pile includes: when the maximum output power of the charging pile is larger than or equal to a preset power threshold value, determining that the charging control strategy is to adjust the temperature of the power battery by the temperature adjusting device, and simultaneously charging the power battery and supplying power to the temperature adjusting device by the charging pile; when the maximum output power of the charging pile is smaller than the preset power threshold value, the charging control strategy is determined to be that the temperature adjusting device is powered on first, the temperature adjusting device adjusts the temperature of the power battery, and when the temperature adjustment of the power battery is finished, the charging pile charges the power battery.
Optionally, when the maximum output power of the charging pile is smaller than the predetermined power threshold, determining that the charging control strategy is to supply power to the temperature adjusting device first, adjust the temperature of the power battery by the temperature adjusting device, and when the temperature adjustment of the power battery is finished, charging the power battery by the charging pile includes:
when the maximum output power of the charging pile is smaller than the preset power threshold value and the state of charge of the power battery is larger than or equal to the preset state of charge, determining the charging control strategy that the charging pile and the power battery jointly supply power to the temperature adjusting device so that the temperature adjusting device adjusts the temperature of the power battery, and when the temperature adjustment of the power battery is finished, charging the power battery by the charging pile;
when the maximum output power of the charging pile is smaller than the preset power threshold value and the state of charge of the power battery is smaller than the preset state of charge, determining that the charging control strategy is that the charging pile supplies power to the temperature regulating device so that the temperature regulating device regulates the temperature of the power battery, and when the temperature regulation of the power battery is finished, charging the power battery by the charging pile.
Optionally, when it is determined that the temperature of the power battery needs to be adjusted, the step of obtaining the maximum output power of the charging pile includes: and when the power battery needs to be adjusted in temperature, determining the maximum output power of the charging pile according to the duty ratio of the PWM signal output by the charging pile.
The present disclosure also provides a charging control device for the power battery. The device comprises: the judging module is used for judging whether the temperature of the power battery needs to be adjusted or not when a charging instruction for charging the power battery is received; the acquisition module is connected with the judgment module and used for acquiring the maximum output power of the charging pile when the judgment module judges that the temperature of the power battery needs to be adjusted; the determining module is connected with the acquiring module and used for determining a charging control strategy of the power battery according to the maximum output power of the charging pile acquired by the acquiring module, wherein the charging control strategy comprises a power supply strategy of a temperature adjusting device used for adjusting the temperature of the power battery; and the control module is connected with the determination module and used for controlling the power battery to be charged according to the charging control strategy determined by the determination module and controlling the temperature regulating device to be powered.
The present disclosure also provides a vehicle including the charging control device of the power battery provided by the present disclosure.
Through the technical scheme, when the power battery needs to be charged and the temperature of the power battery needs to be increased or decreased, the power supply strategy of the temperature adjusting device is determined according to the maximum output power of the charging pile. Therefore, the rapid heating or cooling of the power battery can be realized, and the problem of over-discharge of the power battery caused by the work of the battery heating device or the battery cooling device is effectively avoided, so that the cycle life of the power battery is prolonged, and the charging time is shortened.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of a method for controlling charging of a power battery provided in an exemplary embodiment;
FIG. 2 is a flow chart of a method for controlling charging of a power cell provided in another exemplary embodiment;
FIG. 3 is a block diagram of a charge control device for a power battery provided in an exemplary embodiment;
fig. 4 is a schematic diagram of the connection relationship between the power battery and the temperature adjusting device according to an exemplary embodiment.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart of a charging control method for a power battery according to an exemplary embodiment. As shown in fig. 1, the method may include the following steps.
Step S11, when receiving a charging command for charging the power battery, determines whether temperature adjustment of the power battery is necessary.
As mentioned above, charging at too high or too low a temperature can affect the cycle life of the power battery. Therefore, when a user sends a charging instruction (for example, a charging gun in a charging pile is connected to a vehicle) to trigger the vehicle to start charging, the vehicle can firstly judge whether the power battery needs to be temperature-regulated (heated or cooled). Simply, a range of temperatures may be preset, and if the determined temperature of the power battery is outside the range, it is determined that temperature adjustment of the power battery is necessary. The temperature of the power cell can be determined in various ways, for example, directly or by estimation from other variables.
And step S12, when the power battery is judged to need to be temperature-regulated, acquiring the maximum output power of the charging pile.
The power battery can be charged by charging pile through vehicle-mounted charger. The maximum output power of the charging pile can be obtained by multiplying the maximum output current of the charging pile by the working voltage.
In one embodiment, the step S12 may include: when the power battery is judged to need to be adjusted in temperature, the maximum output power of the charging pile is determined according to the duty ratio of a Pulse Width Modulation (PWM) signal output by the charging pile. Specifically, the duty ratio of the PWM signal output by the charging pile is proportional to the maximum output current of the charging pile, and the maximum output power is obtained by multiplying the maximum output current by the operating voltage (for example, 220V) after the maximum output current is calculated.
And step S13, determining a charging control strategy of the power battery according to the maximum output power of the charging pile, wherein the charging control strategy comprises a power supply strategy of a temperature adjusting device for adjusting the temperature of the power battery.
The maximum output power of the charging pile represents the output capacity of the charging pile, so that the power supply strategy of the temperature adjusting device (a battery heating device or a battery cooling device) can be determined according to the maximum output power of the charging pile in the charging process of the power battery. For example, the power supply strategy of the temperature adjusting device may include: the charging pile independently supplies power to the temperature adjusting device, and the charging pile and the power battery simultaneously supply power to the temperature adjusting device.
In an embodiment, when filling electric pile's output capacity when great, can be by filling electric pile simultaneously for power battery charging and for the attemperator power supply, when filling electric pile's output capacity less, fill electric pile and can supply power for attemperator earlier, when power battery adjusts the temperature and finishes, fill electric pile and charge for power battery again.
And step S14, controlling the power battery to be charged according to the determined charging control strategy, and controlling the power supply to the temperature regulating device.
Compared with the situation that the temperature adjusting device is always powered by a single power supply source, the charging control method can avoid the problem of over-discharge of the power battery caused by the fact that the battery heating device or the battery cooling device is powered.
Through the technical scheme, when the power battery needs to be charged and the temperature of the power battery needs to be increased or decreased, the power supply strategy of the temperature adjusting device is determined according to the maximum output power of the charging pile. Therefore, the rapid heating or cooling of the power battery can be realized, and the problem of over-discharge of the power battery caused by the work of the battery heating device or the battery cooling device is effectively avoided, so that the cycle life of the power battery is prolonged, and the charging time is shortened.
In another embodiment, on the basis of fig. 1, when a charging instruction for charging the power battery is received, the step of determining whether temperature adjustment of the power battery is required (step S11) may include: when a charging instruction for charging the power battery is received and the temperature of the power battery is lower than a preset first temperature threshold value, determining that the power battery needs to be heated: when a charging instruction for charging the power battery is received and the temperature of the power battery is higher than a preset second temperature threshold value, the power battery is judged to need to be cooled, and the preset first temperature threshold value is smaller than the preset second temperature threshold value.
In this embodiment, the temperature of the power battery can be directly detected. The temperature range suitable for charging the power battery is determined by the preset first temperature threshold and the second temperature threshold, and the comparison with the threshold is simple and quick.
Alternatively, step S11 may include: when a charging instruction for charging the power battery is received, the environment temperature is lower than a preset third temperature threshold, and the length of time after the vehicle is flamed out is longer than a preset length of time, it is determined that the power battery needs to be heated; and when a charging instruction for charging the power battery is received and the environment temperature is higher than a preset fourth temperature threshold value, determining that the power battery needs to be cooled, wherein the preset third temperature threshold value is smaller than the preset fourth temperature threshold value.
In this embodiment, the temperature of the power cell is estimated from the ambient temperature. When the environment temperature is low and the flameout time is long, estimating that the temperature of the power battery is low and heating is needed; when the ambient temperature is high, it is estimated that the temperature of the power battery is high and cooling is required. Therefore, the temperature of the power battery does not need to be directly detected, the method is simple, and the result is accurate.
The first temperature threshold, the second temperature threshold, the third temperature threshold, the fourth temperature threshold and the predetermined time period may be obtained through experiments or experience.
In a further embodiment, on the basis of fig. 1, the step of determining the charging control strategy of the power battery according to the maximum output power of the charging pile (step S13) may include the steps of:
when the maximum output power of the charging pile is larger than or equal to a preset power threshold value, determining a charging control strategy that the temperature of the power battery is adjusted by the temperature adjusting device, and simultaneously charging the power battery and supplying power to the temperature adjusting device by the charging pile;
when the maximum output power of the charging pile is smaller than a preset power threshold value, determining that the charging control strategy is to supply power to the temperature regulating device, regulating the temperature of the power battery by the temperature regulating device, and charging the power battery by the charging pile when the temperature of the power battery is regulated.
As described above, the magnitude of the maximum output power of the charging pile indicates the magnitude of the output capability of the charging pile. When the maximum output power of the charging pile is larger than a preset power threshold value, the output capacity of the charging pile is considered to be larger, and the charging pile can charge the power battery and supply power to the temperature regulating device at the same time; when the maximum output power of the charging pile is smaller than the preset power threshold value, the output capacity of the charging pile is considered to be small, the power battery cannot be charged and the temperature adjusting device cannot be powered at the same time, the temperature adjusting device needs to be powered firstly, and the power battery is charged by the charging pile after the temperature adjustment is finished. Wherein, attemperator can only be by filling the electric pile power supply, perhaps, attemperator can be by filling electric pile and power battery common power supply. The power threshold may be experimentally or empirically derived.
In the embodiment, the power supply to the temperature adjusting device and the charging to the power battery are determined according to the maximum output power of the charging pile, the method is simple, and the practicability is high.
In another embodiment, on the basis of the above embodiment, when the maximum output power of the charging pile is smaller than the predetermined power threshold, the step of determining the charging control strategy to supply power to the temperature regulating device first, and regulating the temperature of the power battery by the temperature regulating device, and when the temperature of the power battery is finished, the step of charging the power battery by the charging pile may include the following steps:
when the maximum output power of the charging pile is smaller than a preset power threshold value and the state of charge of the power battery is larger than or equal to a preset state of charge, determining a charging control strategy that the charging pile and the power battery jointly supply power to the temperature regulating device so that the temperature regulating device regulates the temperature of the power battery, and when the temperature regulation of the power battery is finished, charging the power battery by the charging pile;
when the maximum output power of the charging pile is smaller than a preset power threshold value and the state of charge of the power battery is smaller than a preset state of charge, determining a charging control strategy that the charging pile supplies power to the temperature regulating device to ensure that the temperature regulating device regulates the temperature of the power battery, and when the temperature regulation of the power battery is finished, charging the power battery by the charging pile.
In this embodiment, when the output capacity of the charging pile is small, whether the power battery is used for assisting the temperature adjusting device to supply power is considered according to the state of charge of the power battery. Specifically, when the state of charge of the power battery is large (larger than the preset state of charge), the power battery assists the charging pile to supply power to the temperature adjusting device, namely the power battery assists the charging pile to supply power to the temperature adjusting device at the same time, so that the temperature adjusting device can be quickly supplied with power, and the charging efficiency is improved; when the state of charge of the power battery is small (smaller than the preset state of charge), the power battery can only supply power for the temperature adjusting device through the charging pile, namely the power battery does not assist the charging pile to supply power for the temperature adjusting device, and therefore the problem caused by over-discharge of the power battery can be avoided. Fig. 2 is a flowchart of a charging control method for a power battery according to another exemplary embodiment.
Fig. 3 is a block diagram of a charging control device for a power battery according to an exemplary embodiment. As shown in fig. 3, the charging control device 10 for the power battery may include a determination module 11, an acquisition module 12, a determination module 13, and a control module 14.
The judging module 11 is configured to judge whether the temperature of the power battery needs to be adjusted when a charging instruction for charging the power battery is received.
The obtaining module 12 is connected to the judging module 11, and is configured to obtain the maximum output power of the charging pile when the judging module 11 determines that the temperature of the power battery needs to be adjusted.
The determining module 13 is connected to the obtaining module 12, and is configured to determine a charging control policy of the power battery according to the maximum output power of the charging pile obtained by the obtaining module 12, where the charging control policy includes a power supply policy of a temperature adjusting device for adjusting a temperature of the power battery.
The control module 14 is connected to the determination module 13, and is configured to control charging of the power battery according to the charging control strategy determined by the determination module 13, and control power supply to the temperature adjustment device.
Alternatively, the determining module 11 may include a first determining sub-module or a second determining sub-module.
The first judgment submodule is used for judging that the power battery needs to be heated when a charging instruction for charging the power battery is received and the temperature of the power battery is lower than a preset first temperature threshold value, and judging that the power battery needs to be cooled when the charging instruction for charging the power battery is received and the temperature of the power battery is higher than a preset second temperature threshold value, wherein the preset first temperature threshold value is smaller than the preset second temperature threshold value.
The second judgment submodule is used for judging that the power battery needs to be heated when a charging instruction for charging the power battery is received, the environment temperature is lower than a preset third temperature threshold value, and the time length after the vehicle is flamed out is longer than a preset time length, and judging that the power battery needs to be cooled when the charging instruction for charging the power battery is received and the environment temperature is higher than a preset fourth temperature threshold value, wherein the preset third temperature threshold value is smaller than the preset fourth temperature threshold value.
Alternatively, the determination module 13 may include a first determination submodule and a second determination submodule.
The first determining submodule is used for determining the charging control strategy that the temperature of the power battery is adjusted by the temperature adjusting device when the maximum output power of the charging pile is larger than or equal to a preset power threshold value, and the charging pile simultaneously charges the power battery and supplies power to the temperature adjusting device.
And the second determining submodule is used for determining a charging control strategy that the power is supplied to the temperature adjusting device firstly when the maximum output power of the charging pile is smaller than a preset power threshold value, the temperature adjusting device adjusts the temperature of the power battery, and the charging pile charges the power battery when the temperature of the power battery is adjusted.
Optionally, the second determination submodule includes a third determination submodule and a fourth determination submodule.
And the third determining submodule is used for determining a charging control strategy to supply power to the temperature adjusting device by the charging pile and the power battery together when the maximum output power of the charging pile is smaller than a preset power threshold and the state of charge of the power battery is larger than or equal to a preset state of charge so that the temperature adjusting device adjusts the temperature of the power battery, and when the temperature of the power battery is adjusted, the charging pile charges the power battery.
And the fourth determining submodule is used for determining a charging control strategy to supply power to the temperature adjusting device by the charging pile when the maximum output power of the charging pile is smaller than a preset power threshold and the state of charge of the power battery is smaller than a preset state of charge so that the temperature adjusting device adjusts the temperature of the power battery, and charging the power battery by the charging pile when the temperature of the power battery is adjusted.
Optionally, the acquisition module 12 may include an acquisition sub-module.
The acquisition submodule is used for determining the maximum output power of the charging pile according to the duty ratio of the PWM signal output by the charging pile when the temperature of the power battery is required to be adjusted.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Through the technical scheme, when the power battery needs to be charged and the temperature of the power battery needs to be increased or decreased, the power supply strategy of the temperature adjusting device is determined according to the maximum output power of the charging pile. Therefore, the rapid heating or cooling of the power battery can be realized, and the problem of over-discharge of the power battery caused by the work of the battery heating device or the battery cooling device is effectively avoided, so that the cycle life of the power battery is prolonged, and the charging time is shortened.
Fig. 4 is a schematic diagram of the connection relationship between the power battery and the temperature adjusting device according to an exemplary embodiment. As shown in fig. 4, the positive electrode and the negative electrode of the power battery are respectively connected with the battery heating device, the battery cooling device and the vehicle-mounted charger through a first relay K1 and a second relay K2. The vehicle-mounted charger is connected with the charging pile. When the charging pile charges the power battery through the vehicle-mounted charger, the power battery supplies power to the battery heating device, and the power battery supplies power to the battery cooling device, the K1 and the K2 can be closed. When the battery heating device (or the battery cooling device) only depends on the charging pile (through the vehicle-mounted charger) for supplying power, and the power battery does not output power, the K1 and the K2 can be turned on.
The present disclosure also provides a vehicle including the charging control device 10 of the power battery provided by the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (8)
1. A charging control method of a power battery is characterized by comprising the following steps:
when a charging instruction for charging the power battery is received, judging whether the temperature of the power battery needs to be adjusted;
when the power battery needs to be adjusted in temperature, acquiring the maximum output power of the charging pile;
determining a charging control strategy of the power battery according to the maximum output power of the charging pile, wherein the charging control strategy comprises a power supply strategy of a temperature adjusting device for adjusting the temperature of the power battery;
controlling the power battery to be charged according to the determined charging control strategy, and controlling the temperature regulating device to be powered;
the step of determining the charging control strategy of the power battery according to the maximum output power of the charging pile comprises the following steps:
when the maximum output power of the charging pile is larger than or equal to a preset power threshold value, determining that the charging control strategy is to adjust the temperature of the power battery by the temperature adjusting device, and simultaneously charging the power battery and supplying power to the temperature adjusting device by the charging pile;
when the maximum output power of the charging pile is smaller than the preset power threshold value, the charging control strategy is determined to be that the temperature adjusting device is powered on first, the temperature adjusting device adjusts the temperature of the power battery, and when the temperature adjustment of the power battery is finished, the charging pile charges the power battery.
2. The method of claim 1, wherein the step of determining whether the power battery needs to be temperature conditioned upon receiving a charging command to charge the power battery comprises:
when a charging instruction for charging the power battery is received and the temperature of the power battery is lower than a preset first temperature threshold value, determining that the power battery needs to be heated, and when the charging instruction for charging the power battery is received and the temperature of the power battery is higher than a preset second temperature threshold value, determining that the power battery needs to be cooled, wherein the preset first temperature threshold value is smaller than the preset second temperature threshold value;
or,
when a charging instruction for charging the power battery is received, the ambient temperature is lower than a preset third temperature threshold value, and the time length after the vehicle is shut down is longer than a preset time length, the power battery is judged to be required to be heated, when the charging instruction for charging the power battery is received, and the ambient temperature is higher than a preset fourth temperature threshold value, the power battery is judged to be required to be cooled, and the preset third temperature threshold value is smaller than the preset fourth temperature threshold value.
3. The method of claim 1, wherein the step of determining the charging control strategy as supplying power to the temperature regulating device first, regulating the temperature of the power battery by the temperature regulating device, and charging the power battery by the charging post when the temperature regulation of the power battery is finished when the maximum output power of the charging post is less than the predetermined power threshold comprises:
when the maximum output power of the charging pile is smaller than the preset power threshold value and the state of charge of the power battery is larger than or equal to the preset state of charge, determining the charging control strategy that the charging pile and the power battery jointly supply power to the temperature adjusting device so that the temperature adjusting device adjusts the temperature of the power battery, and when the temperature adjustment of the power battery is finished, charging the power battery by the charging pile;
when the maximum output power of the charging pile is smaller than the preset power threshold value and the state of charge of the power battery is smaller than the preset state of charge, determining that the charging control strategy is that the charging pile supplies power to the temperature regulating device so that the temperature regulating device regulates the temperature of the power battery, and when the temperature regulation of the power battery is finished, charging the power battery by the charging pile.
4. The method according to any one of claims 1 to 3, wherein the step of obtaining the maximum output power of the charging pile when it is determined that the power battery needs to be temperature-regulated comprises:
and when the power battery needs to be adjusted in temperature, determining the maximum output power of the charging pile according to the duty ratio of the PWM signal output by the charging pile.
5. A charge control device for a power battery, the device comprising:
the judging module is used for judging whether the temperature of the power battery needs to be adjusted or not when a charging instruction for charging the power battery is received;
the acquisition module is connected with the judgment module and used for acquiring the maximum output power of the charging pile when the judgment module judges that the temperature of the power battery needs to be adjusted;
the determining module is connected with the acquiring module and used for determining a charging control strategy of the power battery according to the maximum output power of the charging pile acquired by the acquiring module, wherein the charging control strategy comprises a power supply strategy of a temperature adjusting device used for adjusting the temperature of the power battery;
the control module is connected with the determination module and used for controlling the power battery to be charged according to the charging control strategy determined by the determination module and controlling the temperature adjusting device to be powered;
wherein the determining module comprises:
the first determining submodule is used for determining the charging control strategy to adjust the temperature of the power battery by the temperature adjusting device when the maximum output power of the charging pile is larger than or equal to a preset power threshold value, and simultaneously charging the power battery by the charging pile and supplying power to the temperature adjusting device;
and the second determining submodule is used for determining that the charging control strategy is to supply power to the temperature adjusting device firstly when the maximum output power of the charging pile is smaller than the preset power threshold value, adjusting the temperature of the power battery by the temperature adjusting device, and charging the power battery by the charging pile when the temperature of the power battery is adjusted.
6. The apparatus of claim 5, wherein the determining module comprises:
the first judgment submodule is used for judging that the power battery needs to be heated when a charging instruction for charging the power battery is received and the temperature of the power battery is lower than a preset first temperature threshold value, and judging that the power battery needs to be cooled when the charging instruction for charging the power battery is received and the temperature of the power battery is higher than a preset second temperature threshold value, wherein the preset first temperature threshold value is smaller than the preset second temperature threshold value;
or,
and the second judgment submodule is used for judging that the power battery needs to be heated when a charging instruction for charging the power battery is received, the environmental temperature is lower than a preset third temperature threshold value, and the time length of the vehicle after flameout is longer than a preset time length, and judging that the power battery needs to be cooled when the charging instruction for charging the power battery is received and the environmental temperature is higher than a preset fourth temperature threshold value, wherein the preset third temperature threshold value is smaller than the preset fourth temperature threshold value.
7. The apparatus of claim 5 or 6, wherein the obtaining module comprises:
and the acquisition submodule is used for determining the maximum output power of the charging pile according to the duty ratio of the PWM signal output by the charging pile when the temperature of the power battery is required to be regulated.
8. A vehicle characterized by comprising the charge control device of the power battery according to any one of claims 5 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654640.2A CN108891276B (en) | 2018-06-22 | 2018-06-22 | Charging control method and device for power battery and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654640.2A CN108891276B (en) | 2018-06-22 | 2018-06-22 | Charging control method and device for power battery and vehicle |
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| CN109802193B (en) * | 2019-01-04 | 2022-03-22 | 东风柳州汽车有限公司 | Cooling method for high-temperature charging of battery pack of electric automobile |
| CN111055726A (en) * | 2019-12-31 | 2020-04-24 | 铜陵市优车科技有限公司 | Battery charging method and apparatus, electronic device, and storage medium |
| CN111532177B (en) * | 2020-06-01 | 2021-08-24 | 中国第一汽车股份有限公司 | Charging heating control method and device, automobile and storage medium |
| CN111987781A (en) * | 2020-08-31 | 2020-11-24 | 安徽江淮汽车集团股份有限公司 | Charging system and method capable of automatically switching power |
| CN112060939A (en) * | 2020-08-31 | 2020-12-11 | 长城汽车股份有限公司 | Quick charging control method and system and vehicle |
| CN112659978B (en) * | 2020-12-07 | 2022-12-16 | 北京车和家信息技术有限公司 | Charging and heating control method and device for power battery, medium, equipment and vehicle |
| CN113013778B (en) * | 2021-03-02 | 2023-01-24 | 山东鲁软数字科技有限公司智慧能源分公司 | Cable tunnel video visual monitoring system and method |
| CN112780348B (en) * | 2021-03-02 | 2023-06-23 | 山东鲁软数字科技有限公司智慧能源分公司 | Cable tunnel image visualization monitoring system and method |
| CN112947216B (en) * | 2021-03-02 | 2022-11-18 | 山东鲁软数字科技有限公司智慧能源分公司 | Overhead line visual monitoring, shooting and power supply meteorological control system and method |
| CN113014773B (en) * | 2021-03-02 | 2023-08-01 | 山东鲁软数字科技有限公司智慧能源分公司 | Video visualization monitoring system and method for overhead line |
| CN113022375B (en) * | 2021-05-08 | 2023-01-13 | 湖北亿纬动力有限公司 | Vehicle charging heat preservation method and device and new energy automobile |
| CN114274823A (en) * | 2022-01-11 | 2022-04-05 | 中国第一汽车股份有限公司 | Charging energy management system and method of electric automobile and electric automobile |
| CN115339354A (en) * | 2022-05-11 | 2022-11-15 | 中国第一汽车股份有限公司 | Power battery heating and heat preservation control method and device, terminal and storage medium |
| CN114987286A (en) * | 2022-06-10 | 2022-09-02 | 中国第一汽车股份有限公司 | Heat preservation method and device for vehicle power battery, vehicle and storage medium |
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| CN102969743B (en) * | 2011-08-31 | 2015-04-22 | 北汽福田汽车股份有限公司 | Charging pile device for electric vehicle |
| US9337680B2 (en) * | 2013-03-12 | 2016-05-10 | Ford Global Technologies, Llc | Method and system for controlling an electric vehicle while charging |
| CN105552478B (en) * | 2016-01-15 | 2018-03-23 | 温州大学激光与光电智能制造研究院 | The design method of temperature of powered cell control system and corresponding control system |
| CN106129507B (en) * | 2016-09-05 | 2018-09-21 | 北京新能源汽车股份有限公司 | Control method and device for charging battery of electric automobile and electric automobile |
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