CN117681695A

CN117681695A - Vehicle charging current control method, device, equipment, storage medium and vehicle

Info

Publication number: CN117681695A
Application number: CN202311846231.XA
Authority: CN
Inventors: 董超
Original assignee: Shanghai Rox Intelligent Technology Co Ltd
Current assignee: Shanghai Rox Intelligent Technology Co Ltd
Priority date: 2023-12-28
Filing date: 2023-12-28
Publication date: 2024-03-12

Abstract

The application discloses a vehicle charging current control method, device, equipment, storage medium and a vehicle, and relates to the technical field of vehicles. The method comprises the following steps: acquiring a first temperature value of a charging socket and a charging current value transmitted to a vehicle battery by the charging socket under the condition that the charging device charges the vehicle battery through the vehicle charging socket; under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value, calculating to obtain a charging power following coefficient according to the first temperature value; calculating to obtain a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and the charging power following coefficient; and controlling the vehicle battery to charge according to the limit charging current value. According to the embodiment of the application, the effective control of the temperature of the charging socket of the vehicle can be realized, and potential safety hazards caused by over-temperature of the charging socket are avoided.

Description

Vehicle charging current control method, device, equipment, storage medium and vehicle

Technical Field

The application belongs to the technical field of vehicles, and particularly relates to a vehicle charging current control method, device, equipment, storage medium and a vehicle.

Background

With the increase of the popularity of new energy vehicles, the charging capability of the new energy vehicle battery is stronger and the charging current for charging the new energy vehicle battery is correspondingly larger, so when charging equipment such as a charging pile is connected with a charging socket of the new energy vehicle through a charging plug, the situation that the charging socket is over-temperature, for example, the temperature of the charging socket exceeds 100 ℃, if the charging socket is not controlled, people are scalded slightly and fire is caused seriously, and safety accidents are caused.

Disclosure of Invention

The embodiment of the application provides a vehicle charging current control method, device, equipment, storage medium and vehicle, which can realize effective control of the temperature of a vehicle charging socket and avoid potential safety hazards caused by over-temperature of the charging socket.

In a first aspect, an embodiment of the present application provides a vehicle charging current control method, including:

acquiring a first temperature value of a charging socket and a charging current value transmitted to a vehicle battery by the charging socket under the condition that the charging device charges the vehicle battery through the vehicle charging socket;

under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value, calculating to obtain a charging power following coefficient according to the first temperature value;

calculating to obtain a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and the charging power following coefficient;

and controlling the vehicle battery to charge according to the limit charging current value.

In a second aspect, an embodiment of the present application provides a vehicle charging current control device, including:

the first acquisition module is used for acquiring a first temperature value of the charging socket and a charging current value transmitted to the vehicle battery by the charging socket under the condition that the charging device charges the vehicle battery through the vehicle charging socket;

the first calculation module is used for calculating a charging power following coefficient according to the first temperature value under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value;

the second calculation module is used for calculating and obtaining a limit charging current value of the vehicle battery according to the charging current value, a preset charging power limit coefficient and the charging power following coefficient;

and the control module is used for controlling the vehicle battery to charge according to the limit charging current value.

In a third aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory storing computer program instructions; the processor, when executing the computer program instructions, implements the vehicle charging current control method as described in any one of the above.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement a vehicle charging current control method as defined in any one of the above.

In a fifth aspect, embodiments of the present application provide a vehicle, including: an electronic device for implementing the vehicle charging current control method according to any one of the above.

According to the vehicle charging current control method, the device, the equipment, the storage medium and the vehicle, under the condition that the charging equipment charges the vehicle battery through the vehicle charging socket, a first temperature value of the charging socket and a charging current value transmitted to the vehicle battery by the charging socket can be obtained; under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value, calculating to obtain a charging power following coefficient according to the first temperature value; calculating to obtain a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and a charging power following coefficient; and controlling the vehicle battery to charge by limiting the charging current value. So, this embodiment of the application, because the temperature and the charging current of charging socket are positive correlation, consequently, can be when the real-time temperature value of charging socket overtemperature, according to real-time current value, charging power limiting coefficient and charging power follow coefficient, the charging current value of restriction vehicle battery, and charging power follow coefficient is relevant with real-time temperature value again, can more effectual control charging current to realize the effective control of vehicle charging socket temperature, avoid the potential safety hazard that the charging socket overtemperature brought.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.

Fig. 1 is a schematic flow chart of a vehicle charging current control method according to an embodiment of the present application;

fig. 2 is a hardware architecture diagram of a vehicle charging current control system provided in an embodiment of the present application;

fig. 3 is a flowchart of an application scenario of the vehicle charging current control method provided in the embodiment of the present application;

fig. 4 is a schematic diagram of a charging power following coefficient provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a vehicle charging current control device provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative of the application and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.

It is noted that relational terms such as first and second, and the like are 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. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

In order to solve the problems in the prior art, embodiments of the present application provide a vehicle charging current control method, device, equipment, storage medium and vehicle. The following first describes a vehicle charging current control method provided in an embodiment of the present application.

Fig. 1 shows a schematic flow chart of a vehicle charging current control method according to an embodiment of the present application. As shown in fig. 1, a vehicle charging current control method may include the following steps S101 to S104:

s101, under the condition that a charging device charges a vehicle battery through a vehicle charging socket, acquiring a first temperature value of the charging socket and a charging current value transmitted to the vehicle battery by the charging socket;

s102, under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value, calculating to obtain a charging power following coefficient according to the first temperature value;

s103, calculating to obtain a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and a charging power following coefficient;

and S104, controlling the vehicle battery to charge with the limit charging current value.

According to the vehicle charging current control method, under the condition that the charging equipment charges the vehicle battery through the vehicle charging socket, a first temperature value of the charging socket and a charging current value transmitted to the vehicle battery by the charging socket can be obtained; under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value, calculating to obtain a charging power following coefficient according to the first temperature value; calculating to obtain a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and a charging power following coefficient; and controlling the vehicle battery to charge by limiting the charging current value. So, this embodiment of the application, because the temperature and the charging current of charging socket are positive correlation, consequently, can be when the real-time temperature value of charging socket overtemperature, according to real-time current value, charging power limiting coefficient and charging power follow coefficient, the charging current value of restriction vehicle battery, and charging power follow coefficient is relevant with real-time temperature value again, can more effectual control charging current to realize the effective control of vehicle charging socket temperature, avoid the potential safety hazard that the charging socket overtemperature brought.

In S101, the vehicle, which may be an electric vehicle as an example, may use electric power as a power source, and the power battery converts electric energy into power through the electric motor, thereby realizing operation of the vehicle.

The above-mentioned charging device may be, for example, a home outlet charger, a wall-mounted charging post, a public charging post, a quick charging post, or the like.

The first temperature value of the charging socket may be, for example, a maximum temperature value of the charging socket during a period when the charger starts outputting a fixed charging current.

The charging current can be a current transmitted to the vehicle battery by the charging socket when the charging device charges the vehicle battery.

The above-mentioned obtaining the first temperature value of the charging socket may be, for example, that at least one temperature sensor is placed in the charging socket, and the vehicle controller obtains the temperature of the socket itself or the high-voltage connection terminal collected by the temperature sensor.

In S102, the preset first temperature threshold may be, for example, 40 ℃, which is not limited to this, but may be other values, which may be set according to the actual needs of the user, and the embodiment of the present application is not limited specifically.

The condition that the first temperature value is greater than or equal to the preset first temperature threshold value means that the charging socket has an over-temperature fault, and in order to avoid potential safety hazards caused by over-temperature of the charging socket, charging current needs to be controlled.

The above-mentioned charging power following coefficient may refer to the ability of the vehicle controller to adjust the charging current according to the requirement of the charging socket temperature value in the charging process. The charging power following coefficient is generally a proportional coefficient, for example, 70%, which indicates that the vehicle controller can automatically adjust the speed and the degree of the charging current output by the charging device according to the temperature control requirement of the charging socket of the electric vehicle. When an electric vehicle requires more charging current, the charging power following coefficient increases, thereby providing a larger charging current; when the electric vehicle requires less charging current, the charging power following coefficient may decrease, thereby decreasing the charging current. The high efficiency and the safety in the charging process can be ensured by adjusting the charging power following coefficient so as to meet the requirements of electric vehicles.

The foregoing calculation of the charging power following coefficient according to the first temperature value may be, for example, substitution into the formula (1) according to the first temperature value, where the calculation of the charging power following coefficient is shown in the following formula (1):

K2 ＝ - Kt×CSTmax + Z (1)

wherein K2 represents a charging power following coefficient, kt represents a preset over-temperature limit coefficient slope, CSTmax represents a first temperature value, and Z represents a preset gain. Illustratively, the Kt may be 0.09, which is not limited to the embodiment of the present application, but may be other values, which are not specifically limited herein.

The foregoing calculating, according to the first temperature value, a charging power following coefficient under the condition that the first temperature value is greater than or equal to a preset first temperature threshold value may, for example, be that, under the condition that the first temperature value is greater than or equal to the preset first temperature threshold value, a first failure duration of the charging socket is obtained, where the first failure duration is a duration that the first temperature value is continuously greater than or equal to the first temperature threshold value; and under the condition that the first fault duration reaches a preset first time duration threshold value, calculating to obtain a charging power following coefficient according to the first temperature value.

In S103, the above-mentioned charging power limitation coefficient refers to the capability of the vehicle controller to limit the charging current of the charging device during the charging process. The charging power limit coefficient is typically a proportionality coefficient, for example 80%, representing the proportionality between the maximum available charging current and the actual charging current of the charging device during charging. When the charging power limit coefficient is 1, it means that the charging device can supply the entire maximum charging current; when the charging power limiting coefficient is smaller than 1, it means that the charging device limits the charging power, and the provided charging current is correspondingly reduced.

The above-mentioned limiting charging current value of the vehicle battery is calculated according to the charging current value, the preset charging power limiting coefficient and the charging power following coefficient, and may be, for example, a product of the charging current value, the preset charging power limiting coefficient and the charging power following coefficient is determined as the limiting charging current value of the vehicle battery.

In S104, the vehicle battery is controlled to be charged by the charging current limiting value, and the vehicle controller may control the charging device to limit the charging current value, and charge the vehicle battery through the high-voltage connection line.

In some embodiments, S102 may specifically include:

acquiring a first fault duration of the charging socket under the condition that the first temperature value is greater than or equal to a preset first temperature threshold, wherein the first fault duration is a duration that the first temperature value is continuously greater than or equal to the first temperature threshold;

and under the condition that the first fault duration reaches a preset first time duration threshold value, calculating to obtain a charging power following coefficient according to the first temperature value.

The first failure duration may be a duration in which the first temperature value is continuously greater than or equal to the first temperature threshold.

The condition that the first temperature value is greater than or equal to the preset first temperature threshold value means that an over-temperature fault may exist in the charging socket, and in order to reduce the interference on the control of the charging current of the vehicle caused by over-temperature false alarm, it is further required to determine whether the over-temperature fault exists in the charging socket.

The first time period threshold may be, for example, 30 seconds, which is not limited to this, and other values may be set according to the actual needs of the user, which is not limited herein.

The condition that the first fault duration reaches the preset first time duration threshold means that the charging socket does have an over-temperature fault, so that a charging power following coefficient is obtained through calculation according to the first temperature value, and effective control of the temperature of the charging socket of the vehicle is achieved.

In this embodiment, under the condition that the first temperature value is greater than or equal to a preset first temperature threshold value, a first fault duration of the charging socket is obtained first, and under the condition that the first fault duration reaches the preset first time threshold value, a charging power following coefficient is calculated according to the first temperature value, so as to limit the charging current of the vehicle battery, and finally, effective control of the temperature of the charging socket of the vehicle is achieved.

As an implementation manner of the present application, in order to further ensure the charging safety of the vehicle, after S104 above, the method may further include:

acquiring a second temperature value of the charging socket, wherein the second temperature value is a temperature value of the charging socket after the vehicle battery is controlled to be charged for a preset time period by limiting the charging current value;

acquiring a second fault duration of the charging socket when the second temperature value is greater than or equal to a preset second temperature threshold, wherein the second fault duration is a duration when the second temperature value is continuously greater than or equal to the second temperature threshold;

and controlling the power-down of the vehicle battery under the condition that the second fault duration reaches a preset second duration threshold value.

The second temperature value can be a temperature value of the charging socket after the vehicle controller controls the vehicle battery to charge for a preset time period through the charging equipment by limiting the charging current value.

The preset second temperature threshold may be a value greater than the first temperature threshold, and may be, for example, 45 ℃. The present invention is not limited thereto, but may be any other value greater than the first temperature threshold, and may be set according to the actual requirement of the user.

The condition that the second temperature value is greater than or equal to the preset second temperature threshold value means that the charging socket may still have an over-temperature hidden danger.

The second failure duration may be a duration in which the second temperature value is continuously equal to or greater than the second temperature threshold.

The second duration threshold may be, for example, 30 seconds, which is the same as the first duration threshold, or may be a value smaller than the first duration threshold, which is not limited to this, but may be other values according to the actual needs of the user, which is not particularly limited herein.

The fact that the second fault duration reaches the preset second duration threshold value means that the charging socket does have over-temperature hidden danger, and the vehicle battery needs to be further controlled to be powered down so as to ensure the charging safety of the vehicle.

In this embodiment, after the vehicle controller controls the charging device to limit the charging current value to charge the vehicle battery for a preset period of time, it is further determined whether the second temperature value is greater than or equal to a preset second temperature threshold value, if yes, a second fault period of the charging socket is further obtained, and under the condition that the second fault period reaches the preset second period threshold value, the charging device is controlled to exit power transmission to realize power-down of the vehicle battery, so that charging safety of the vehicle is further ensured.

As another implementation manner of the present application, to further achieve effective control of the temperature of the charging socket of the vehicle, after the obtaining the second temperature value of the charging socket, the method may further include:

and updating the charging power following coefficient according to the second temperature value under the condition that the second temperature value is smaller than the second temperature threshold value.

The fact that the second temperature value is smaller than the second temperature threshold value means that the temperature of the charging socket is already controlled to a certain extent, but the temperature control effect is not ideal, and at this time, the charging power following coefficient needs to be updated according to the second temperature value to readjust the charging current value output by the charging socket to the vehicle battery.

In this embodiment, when the second temperature value is smaller than the second temperature threshold value, the charging power following coefficient is updated according to the second temperature value, so as to further realize effective control of the temperature of the vehicle charging socket.

As still another implementation manner of the present application, in order to more accurately identify that there is an over-temperature hidden danger in the charging socket, before obtaining the second fault duration of the charging socket when the second temperature value is greater than or equal to the preset second temperature threshold, the method may further include:

calculating a temperature difference between the second temperature value and the first temperature value;

under the condition that the second temperature value is greater than or equal to a preset second temperature threshold value, obtaining the second fault duration of the charging socket specifically may include:

and acquiring a second fault duration of the charging socket when the second temperature value is larger than the first temperature value, the temperature difference value is larger than a preset first temperature difference threshold value, and the second temperature value is larger than or equal to a preset second temperature threshold value.

The first temperature difference threshold may be, for example, 1 ℃. The embodiment of the present application is not limited to this, and other values may be set according to the actual needs of the user, which is not limited herein.

In this embodiment, when the second temperature value is greater than or equal to the preset second temperature threshold, whether the second temperature value is greater than the first temperature value or not is further determined, and whether the temperature difference is greater than the preset first temperature difference threshold or not is determined, so that the potential risk of over-temperature of the charging socket can be more accurately identified.

As still another implementation manner of the present application, in order to improve the vehicle charging efficiency, after calculating the temperature difference between the second temperature value and the first temperature value, the method may further include:

and updating the charging power following coefficient according to the second temperature value under the condition that the second temperature value is smaller than the first temperature value and the temperature difference value is larger than a preset second temperature difference threshold value.

The second temperature difference threshold may be, for example, 2 ℃. The embodiment of the present application is not limited to this, and other values may be set according to the actual needs of the user, which is not limited herein.

The fact that the second temperature value is smaller than the first temperature value and the temperature difference is larger than the preset second temperature difference threshold value means that the temperature of the charging socket is effectively controlled, but the charging current is relatively low, so that the charging efficiency is low, and in order to improve the vehicle charging efficiency as much as possible, at this time, the charging power following coefficient needs to be updated according to the second temperature value, so that the whole vehicle controller can readjust the charging current value output by the charging device to the vehicle battery.

In order to facilitate understanding of the vehicle charging current control method in the embodiment of the present application, a practical application process of the vehicle charging current control method is described as follows:

as shown in fig. 2, an embodiment of the present application provides a hardware architecture of a vehicle charging current control system, including:

1. vehicle charging socket: an external charging socket on the electric automobile comprises a fast charging socket, a slow charging socket or other external discharging interfaces.

2. High pressure of whole vehicle: comprises various components of a whole vehicle high-voltage energy storage element (such as a battery) of the whole vehicle high-voltage system.

3. The whole vehicle controller comprises: refers to a controller on an electric vehicle (a domain control, central controller, battery management system, or other on-board controller containing this control software).

4. Temperature sensor: 1. the temperature sensor arranged on the socket is used for collecting the temperature of the socket or the high-voltage connecting terminal, and the number of the temperature sensors can be 1 or more, and each position is arranged.

5. The temperature signal transmission connecting wire.

6. High voltage connection wire.

Before introducing a vehicle charging current control method, explaining each parameter variable:

charging current: current;

socket temperature: current Socket temperature, CST;

maximum outlet temperature: CSTmax;

socket over-temperature primary fault temperature threshold: CST1 (e.g., 40 °);

socket over-temperature secondary fault temperature threshold: CST2 (e.g., 45 °);

charging power limit coefficient after socket over-temperature primary fault: k1;

charging power following coefficient after first-stage over-temperature of socket: k2;

socket over-temperature primary fault time debounce: t01;

socket over-temperature secondary failure time debounce: t02;

charging current determination time debounce: t03;

over-temperature limiting coefficient slope: kt;

gain: z.

As shown in fig. 3, the embodiment of the present application provides a vehicle charging current control method, which is applicable to the vehicle charging current control system shown in fig. 2, and may include the following steps:

1. the user inserts the rifle and charges, and the charger begins output Current, whole car controller real time monitoring socket temperature maximum value CSTMax and charging Current01.

2. When CSTMax is larger than or equal to CST1 and the duration t01 is satisfied, the flow is downwards, otherwise, the step 1 is returned.

3. Limiting the charging current: current 02=k1×k2×current01, K1 is a custom value, and K2 is calculated in real time according to the algorithm described below.

4. Since step 3 decreases the charging current, the expected effect is that the socket temperature rise will be slow or even reduced, and it is first determined whether the socket maximum temperature CSTmax increases by more than 1 ℃ after the continuous charging t 03? If the condition is met, the flow goes to the step 5, and more strict charging limitation needs to be continued; otherwise, the step 6 is left.

5. Since the temperature of the socket is still rising, whether CSTMax is more than or equal to CST2 and lasting t02 are needed, if yes, emergency high voltage is needed, and the flow goes to the step 7; otherwise, the flow goes to step 3, the value of K2 is updated once, and then the flow goes to step 4 until the temperature of the socket is not increased.

6. At this time, the socket temperature is stabilized, whether the temperature CSTMax of the socket is reduced by more than 2 ℃ or not is monitored in real time, and if the condition that the charging power is smaller at this time is met, the charging capacity can be partially released, the flow goes to the step 3, and the K2 value is updated.

7. And controlling the charger to withdraw from power transmission, so as to realize the high voltage (namely power down) of the vehicle battery.

As shown in fig. 4, the above K2 calculation method: k2 = -ktxct+z.

According to the embodiment of the application, the limiting charging current can be determined according to the real-time socket temperature, so that the charging socket temperature can be controlled more accurately and efficiently.

Based on the vehicle charging current control method provided by the embodiment, correspondingly, the application also provides a specific implementation mode of the vehicle charging current control device. Please refer to the following examples.

As shown in fig. 5, a vehicle charging current control device 500 provided in an embodiment of the present application may include the following modules: a first acquisition module 501, a first calculation module 502, a second calculation module 503, and a control module 504.

A first obtaining module 501, configured to obtain, when the charging device charges the vehicle battery through the vehicle charging socket, a first temperature value of the charging socket, and a charging current value transmitted to the vehicle battery by the charging socket;

the first calculating module 502 is configured to calculate, according to the first temperature value, a charging power following coefficient when the first temperature value is greater than or equal to a preset first temperature threshold;

a second calculating module 503, configured to calculate a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and a charging power following coefficient;

the control module 504 is configured to control the vehicle battery to be charged with the limited charging current value.

According to the vehicle charging current control device, under the condition that the charging equipment charges the vehicle battery through the vehicle charging socket, a first temperature value of the charging socket and a charging current value transmitted to the vehicle battery by the charging socket can be obtained; under the condition that the first temperature value is larger than or equal to a preset first temperature threshold value, calculating to obtain a charging power following coefficient according to the first temperature value; calculating to obtain a limited charging current value of the vehicle battery according to the charging current value, a preset charging power limiting coefficient and a charging power following coefficient; and controlling the vehicle battery to charge by limiting the charging current value. So, this embodiment of the application, because the temperature and the charging current of charging socket are positive correlation, consequently, can be when the real-time temperature value of charging socket overtemperature, according to real-time current value, charging power limiting coefficient and charging power follow coefficient, the charging current value of restriction vehicle battery, and charging power follow coefficient is relevant with real-time temperature value again, can more effectual control charging current to realize the effective control of vehicle charging socket temperature, avoid the potential safety hazard that the charging socket overtemperature brought.

In some embodiments, the first computing module 502 may specifically include:

the device comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring a first fault duration of the charging socket under the condition that a first temperature value is greater than or equal to a preset first temperature threshold value, and the first fault duration is a duration that the first temperature value is continuously greater than or equal to the first temperature threshold value;

and the calculating unit is used for calculating and obtaining a charging power following coefficient according to the first temperature value under the condition that the first fault duration reaches a preset first time duration threshold value.

As an implementation manner of the present application, in order to further ensure the safety of charging the vehicle, the apparatus 500 may further include:

the second acquisition module is used for acquiring a second temperature value of the charging socket, wherein the second temperature value is a temperature value of the charging socket after the vehicle battery is controlled to be charged for a preset time period by limiting the charging current value;

the third obtaining module is used for obtaining a second fault duration of the charging socket when the second temperature value is greater than or equal to a preset second temperature threshold value, wherein the second fault duration is a duration when the second temperature value is continuously greater than or equal to the second temperature threshold value;

the control module 504 is further configured to control the vehicle battery to be powered down if the second failure duration reaches a preset second duration threshold.

As another implementation manner of the present application, in order to further achieve effective control of the temperature of the vehicle charging socket, the apparatus 500 may further include:

and the first updating module is used for updating the charging power following coefficient according to the second temperature value under the condition that the second temperature value is smaller than the second temperature threshold value.

As still another implementation manner of the present application, in order to more accurately identify that the charging socket has an over-temperature hidden danger, the apparatus 500 may further include:

the third calculation module is used for calculating a temperature difference value between the second temperature value and the first temperature value;

the third obtaining module is further configured to obtain a second fault duration of the charging socket when the second temperature value is greater than the first temperature value, the temperature difference value is greater than a preset first temperature difference threshold, and the second temperature value is greater than or equal to a preset second temperature threshold.

As still another implementation manner of the present application, in order to improve the vehicle charging efficiency, the apparatus 500 further includes:

and the second updating module is used for updating the charging power following coefficient according to the second temperature value under the condition that the second temperature value is smaller than the first temperature value and the temperature difference value is larger than a preset second temperature difference threshold value.

Fig. 6 shows a schematic hardware structure of an electronic device according to an embodiment of the present application.

A processor 601 may be included in an electronic device and a memory 602 storing computer program instructions.

In particular, the processor 601 may include a Central Processing Unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits of embodiments of the present application.

Memory 602 may include mass storage for data or instructions. By way of example, and not limitation, memory 602 may include a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) Drive, or a combination of two or more of the above. The memory 602 may include removable or non-removable (or fixed) media, where appropriate. Memory 602 may be internal or external to the integrated gateway disaster recovery device, where appropriate. In a particular embodiment, the memory 602 is a non-volatile solid state memory.

In particular embodiments, memory 602 may include Read Only Memory (ROM), random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by one or more processors) it is operable to perform the operations described with reference to methods in accordance with aspects of the present disclosure.

The processor 601 implements any of the vehicle charging current control methods of the above embodiments by reading and executing computer program instructions stored in the memory 602.

In one example, the electronic device may also include a communication interface 603 and a bus 610. As shown in fig. 6, the processor 601, the memory 602, and the communication interface 603 are connected to each other through a bus 610 and perform communication with each other.

The communication interface 603 is mainly configured to implement communication between each module, apparatus, unit and/or device in the embodiments of the present application.

Bus 610 includes hardware, software, or both, that couple components of the electronic device to one another. By way of example, and not limitation, the buses may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a micro channel architecture (MCa) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus, or a combination of two or more of the above. Bus 610 may include one or more buses, where appropriate. Although embodiments of the present application describe and illustrate a particular bus, the present application contemplates any suitable bus or interconnect.

The electronic device may execute the vehicle charging current control method in the embodiment of the present application, thereby implementing the vehicle charging current control method and apparatus described in connection with fig. 1 and 5.

In addition, in combination with the vehicle charging current control method in the above embodiment, the embodiment of the application may be implemented by providing a computer-readable storage medium. The computer readable storage medium has stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the vehicle charging current control methods of the above embodiments.

In combination with the vehicle charging current control method in the above embodiments, the embodiments of the present application may provide a vehicle to achieve. The vehicle includes: an electronic device for implementing the vehicle charging current control method according to any one of the above.

It should be clear that the present application is not limited to the particular arrangements and processes described above and illustrated in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions, or change the order between steps, after appreciating the spirit of the present application.

The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.

It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be different from the order in the embodiments, or several steps may be performed simultaneously.

Aspects of the present disclosure are described above with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to being, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware which performs the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, which are intended to be included in the scope of the present application.

Claims

1. A vehicle charging current control method, characterized by comprising:

2. The method according to claim 1, wherein the calculating a charging power following coefficient according to the first temperature value when the first temperature value is equal to or greater than a preset first temperature threshold value includes:

3. The method of claim 1, further comprising, after said controlling said vehicle battery to charge at said limited charge current value:

acquiring a second temperature value of the charging socket, wherein the second temperature value is a temperature value of the charging socket after the vehicle battery is controlled to be charged for a preset time period by the limiting charging current value;

and controlling the vehicle battery to be powered down under the condition that the second fault duration reaches a preset second duration threshold value.

4. The method of claim 3, further comprising, after said obtaining the second temperature value of the charging outlet:

5. The method according to claim 3, wherein, before obtaining the second failure duration of the charging socket if the second temperature value is equal to or greater than a preset second temperature threshold value, further comprises:

and under the condition that the second temperature value is greater than or equal to a preset second temperature threshold value, acquiring a second fault duration of the charging socket, including:

6. The method of claim 5, further comprising, after said calculating a temperature difference between said second temperature value and said first temperature value:

7. A vehicle charging current control apparatus, characterized by comprising:

8. An electronic device, the device comprising: a processor and a memory storing computer program instructions; the processor, when executing the computer program instructions, implements the vehicle charging current control method as claimed in any one of claims 1-6.

9. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon computer program instructions, which when executed by a processor, implement the vehicle charging current control method according to any one of claims 1-6.

10. A vehicle, characterized by comprising: an electronic device for implementing the vehicle charging current control method according to any one of claims 1 to 6.