CN118182214A

CN118182214A - Method for controlling vehicle charging, control unit, electronic device and storage medium

Info

Publication number: CN118182214A
Application number: CN202211606457.8A
Authority: CN
Inventors: 徐旭; 王海龙; 袁宝成; 刘少伟
Original assignee: Beijing CHJ Automobile Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2024-06-14

Abstract

The present disclosure discloses a method and a control unit for controlling vehicle charging, an electronic device and a storage medium, mainly comprising: in response to the charging request, controlling a precharge circuit based on the first half-control type electronic device to conduct and precharge; after the precharge is completed, a charging circuit formed by the second semi-control type electronic device is controlled to be conducted so as to charge; the precharge circuit is connected in parallel with the charging circuit, and the precharge circuit and the charging circuit are turned on and turned off in opposite directions, and compared with the prior art that the charging circuit forms a conductive loop through the contact of the electromagnetic relay through the metal contact, the precharge circuit and the charging circuit are respectively controlled to form the conductive loop based on the replacement of the electromagnetic relay by the first semi-control type electronic device and the second semi-control type electronic device, so that the switching control of the circuit is realized.

Description

Method for controlling vehicle charging, control unit, electronic device and storage medium

Technical Field

The disclosure relates to the technical field of vehicles, and in particular relates to a vehicle charging control method, a control unit, electronic equipment and a storage medium.

Background

In the current high-voltage charging system of an electric automobile, the scheme for controlling the on and off of a charging circuit mainly comprises the following steps: the electromagnetic relay controls the on and off of the charging circuit, and the charging circuit forms a conductive loop through the contact of the metal contact. When the electromagnetic relay performs charging circuit control every time, repeated arc discharge phenomenon generated in the closing and rebound processes is easy to cause accumulated damage to the contact of the electromagnetic relay, the conductivity is affected, after the contact of the electromagnetic relay is damaged, the contact can be caused to charge by controlling the charging circuit, and the charging circuit cannot be normally conducted to cause vehicle charging failure.

Disclosure of Invention

The disclosure provides a vehicle charging control method, a control unit, an electronic device and a storage medium. The main purpose of the electromagnetic relay charging circuit is to solve the problems that in the related art, the charging circuit is controlled by the electromagnetic relay, accumulated damage is easily caused to the contact of the electromagnetic relay, and the conductivity is affected.

According to a first aspect of the present disclosure, there is provided a method of vehicle charge control, including:

in response to the charging request, controlling a precharge circuit based on the first half-control type electronic device to conduct and precharge;

after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge;

the pre-charging circuit is connected with the charging circuit in parallel, and the pre-charging circuit and the charging circuit are turned on and turned off relatively reversely.

Optionally, the first half-controlled electronic device includes a first thyristor and a second thyristor, and the controlling based on the first half-controlled electronic device to precharge the circuit is conducted in response to the charging request includes:

Outputting a first driving signal to gates of the first thyristor and the second thyristor based on a controller;

and carrying out precharging under the condition that the precharge circuit formed by the first thyristor and the second thyristor is conducted.

Optionally, the precharging includes, when the precharge circuit formed by the first thyristor and the second thyristor is turned on:

Monitoring whether the current value passing through the first thyristor and the current value of the second thyristor reach a first holding current or not respectively;

And if the current value of the first thyristor and the current value of the second thyristor are determined to reach the first holding current, stopping outputting the first driving signal based on the controller, and controlling the first thyristor and the second thyristor to be kept on.

Optionally, the second half-controlled electronic device includes a third thyristor and a fourth thyristor, after the precharge is completed, the charging circuit formed by the second half-controlled electronic device is controlled to be turned on, and the charging includes:

outputting a second driving signal to gates of the third thyristor and the fourth thyristor respectively based on the controller;

Charging is performed with the precharge circuit of the third and fourth thyristors turned on.

Optionally, before outputting the second driving signal to the gates of the third thyristor and the fourth thyristor based on the controller, respectively, the method includes:

And after the current value passing through the first thyristor and the second thyristor is reduced to a first preset current threshold value, controlling the first thyristor and the second thyristor to be naturally turned off.

Optionally, said charging with the precharge circuit of the third and fourth thyristors turned on includes:

monitoring whether the current value of the third thyristor and the current value of the fourth thyristor reach a second holding current or not respectively;

And if the current value of the third thyristor and the current value of the fourth thyristor reach the second holding current, stopping outputting the second driving signal based on the controller, and controlling the third thyristor and the fourth thyristor to be kept on.

Optionally, after charging, in a case where the precharge circuit of the third thyristor and the fourth thyristor is turned on, the method includes:

and after the current values passing through the third thyristor and the fourth thyristor are reduced to a second preset current threshold value, controlling the third thyristor and the fourth thyristor to be naturally turned off.

Optionally, determining at least one thyristor as the first thyristor and determining at least one thyristor as the second thyristor;

The current carrying capacity of at least two thyristors formed by connecting the first thyristor and the second thyristor in series is set to be the same as that of the precharge circuit.

Optionally, the method includes:

Determining at least one thyristor as the third thyristor and at least one thyristor as the fourth thyristor;

the current carrying capacity of at least two thyristors formed by arranging the third thyristor and the fourth thyristor in series is the same as that of the charging circuit.

According to a second aspect of the present disclosure, there is provided a vehicle charge control unit including:

The control unit is used for responding to the charging request, controlling the conduction of the precharge circuit based on the first half-control type electronic device and carrying out precharge; after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge; the pre-charging circuit is connected with the charging circuit in parallel, and the pre-charging circuit and the charging circuit are turned on and turned off relatively reversely.

Optionally, the control unit includes:

A first output module for outputting a first driving signal to gates of the first and second thyristors based on a controller;

And the precharge module is used for precharging under the condition that the precharge circuit formed by the first thyristor and the second thyristor is conducted.

Optionally, the precharge module is further configured to:

Optionally, the control unit further includes:

A second output module for outputting a second driving signal to gates of the third and fourth thyristors, respectively, based on the controller;

And the charging module is used for charging under the condition that the precharge circuit formed by the third thyristor and the fourth thyristor is conducted.

Optionally, the control unit includes:

and the turn-off module is used for controlling the first thyristor and the second thyristor to be naturally turned off after the current value passing through the first thyristor and the second thyristor is reduced to a first preset current threshold value.

Optionally, the charging module is further configured to:

Optionally, the shutdown module is further configured to:

Optionally, the control unit further includes:

A determining module configured to determine at least one thyristor as the first thyristor and at least one thyristor as the second thyristor;

and the setting module is used for setting the current carrying capacity of at least two thyristors formed by connecting the first thyristor and the second thyristor in series to be the same as that of the precharge circuit.

Optionally, the determining module is further configured to:

Optionally, the setting module is further configured to set a current carrying capability of at least two thyristors formed by connecting the third thyristor and the fourth thyristor in series to be the same as a current carrying capability of the charging circuit.

According to a third aspect of the present disclosure, there is provided an electronic device comprising:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the first aspect.

According to a fourth aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of the preceding first aspect.

According to a fifth aspect of the present disclosure, there is provided a computer program product comprising a computer program which, when executed by a processor, implements the method of the first aspect described above.

The method for controlling vehicle charging, the control unit, the electronic equipment and the storage medium provided by the disclosure have the main technical scheme that: in response to the charging request, controlling a precharge circuit based on the first half-control type electronic device to conduct and precharge; after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge; the precharge circuit is connected in parallel with the charging circuit, and the precharge circuit and the charging circuit are conducted and are turned off in opposite directions, compared with the prior art that the charging circuit forms a conductive loop through contact of the electromagnetic relay through metal contacts, the precharge circuit and the charging circuit are controlled to form the conductive loop based on the fact that the first half-control type electronic device and the second half-control type electronic device replace the electromagnetic relay respectively, and switching control of the circuit is achieved.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.

Drawings

The drawings are for a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:

fig. 1 is a schematic flow chart of a vehicle charging control method according to an embodiment of the disclosure;

fig. 2 is a schematic structural view of a vehicle charging control unit 21 according to an embodiment of the present disclosure;

Fig. 3 is a schematic block diagram of an example electronic device 300 provided by an embodiment of the disclosure.

Detailed Description

Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

A method of vehicle charge control, a control unit, an electronic device, and a storage medium according to an embodiment of the present disclosure are described below with reference to the accompanying drawings.

Fig. 1 is a flowchart of a vehicle charging control method according to an embodiment of the disclosure.

As shown in fig. 1, the method comprises the steps of:

In step 101, in response to a charging request, a precharge circuit based on the first half-control type electronic device is controlled to be turned on for precharge.

As a refinement of the above embodiment, after receiving the charging request, the first half-control electronic device is controlled to be turned on, so that the precharge circuit is turned on to perform precharge, that is, precharge the capacitor in advance, in order to prevent the battery from being damaged by direct charging of the battery. The first half-controlled electronic device is a thyristor in the embodiment of the disclosure.

And 102, after the precharge is completed, controlling a charging circuit formed by the second semi-controlled electronic device to be conducted for charging.

As a refinement of the step 102, after the precharge process is completed, that is, after the capacitor is charged, the second semi-controlled electronic device is controlled to be turned on, so that the charging circuit is turned on to charge the vehicle battery, where the first semi-controlled electronic device is a thyristor in the embodiment of the disclosure.

Step 103, connecting the pre-charging circuit and the charging circuit in parallel, and turning off the pre-charging circuit and the charging circuit in opposite directions.

As a refinement of the step 103, in this embodiment, a connection structure in which the charging circuit and the precharge circuit are connected in parallel is adopted, and the precharge circuit and the charging circuit are turned off in opposite directions, so that when any one of the circuits is in operation, the other circuit is not in operation, to realize isolation between the precharge process and the charging process.

The method for controlling the vehicle charging provided by the disclosure mainly comprises the following steps: in response to the charging request, controlling a precharge circuit based on the first half-control type electronic device to conduct and precharge; after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge; the precharge circuit is connected in parallel with the charging circuit, and the precharge circuit and the charging circuit are conducted and are turned off in opposite directions, compared with the prior art that the charging circuit forms a conductive loop through contact of the electromagnetic relay through metal contacts, the precharge circuit and the charging circuit are controlled to form the conductive loop based on the fact that the first half-control type electronic device and the second half-control type electronic device replace the electromagnetic relay respectively, and switching control of the circuit is achieved.

As a refinement of the embodiment of the present disclosure, in performing step 101, the first half-controlled electronic device includes a first thyristor and a second thyristor, and in response to the charging request, the precharge circuit based on the first half-controlled electronic device is controlled to be turned on, where the precharge is performed, the following implementation may be adopted, for example, but not limited to: outputting a first driving signal to gates of the first thyristor and the second thyristor based on a controller; and carrying out precharging under the condition that the precharge circuit formed by the first thyristor and the second thyristor is conducted.

As can be seen from the foregoing detailed description, the first half-controlled electronic device adopts a thyristor, and in this embodiment, a first half-controlled electronic device including a first thyristor and a second thyristor is provided, and a controller outputs a first driving signal to gates of the first thyristor and the second thyristor, so that the first thyristor and the second thyristor are turned on, and further the precharge circuit formed by the first thyristor and the second thyristor is turned on, so that precharge can be performed, and the controller may adopt a control chip such as a microprocessor, where the first driving signal is a level signal output by a pin of the controller. And conducting the precharge circuit based on the level signal.

As a refinement of the above embodiment, in performing the precharge with the precharge circuit composed of the first thyristor and the second thyristor turned on, the following implementation may be adopted, for example, but not limited to: monitoring whether the current value passing through the first thyristor and the current value of the second thyristor reach a first holding current or not respectively; and if the current value of the first thyristor and the current value of the second thyristor are determined to reach the first holding current, stopping outputting the first driving signal based on the controller, and controlling the first thyristor and the second thyristor to be kept on.

It should be understood that the thyristor has a characteristic of being always turned on after reaching the holding current, and is turned off only if the current value of the on circuit drops to a preset threshold value, so that the controller pin does not output the first driving signal after the current value of the first thyristor and the current value of the second thyristor reach the first holding current during the precharge process, and the first thyristor and the second thyristor can be always turned on based on the characteristics thereof.

As a refinement of the foregoing embodiment, in step 102, the second semi-controlled electronic device includes a third thyristor and a fourth thyristor, and after the precharge is completed, the charging circuit formed by the second semi-controlled electronic device is controlled to be turned on, and when charging is performed, the following implementation may be adopted, for example, but not limited to: outputting a second driving signal to gates of the third thyristor and the fourth thyristor respectively based on the controller; charging is performed with the precharge circuit of the third and fourth thyristors turned on.

In the embodiment, a second half-control type electronic device including a third thyristor and a fourth thyristor is provided, and a controller outputs a second driving signal to gates of the third thyristor and the fourth thyristor, so that the third thyristor and the fourth thyristor are turned on, and the charging circuit formed by the third thyristor and the fourth thyristor is turned on, so that charging can be performed, and the controller may use a control chip such as a microprocessor, and the second driving signal is a level signal output by a pin of the controller. And conducting the charging circuit based on the level signal.

As a refinement of the above embodiment, before performing the outputting of the second driving signal to the gates of the third thyristor and the fourth thyristor based on the controller, respectively, the method further includes: and after the current value passing through the first thyristor and the second thyristor is reduced to a first preset current threshold value, controlling the first thyristor and the second thyristor to be naturally turned off.

And after the current of the pre-charging circuit is reduced to a first preset current threshold, the first thyristor and the second thyristor are naturally turned off, and the first preset current threshold is a current value at which the first thyristor and the second thyristor cannot be maintained to be conducted.

As a refinement of the above embodiment, in performing the charging with the precharge circuit of the third thyristor and the fourth thyristor turned on, the method may employ, but is not limited to, the following implementation: monitoring whether the current value of the third thyristor and the current value of the fourth thyristor reach a second holding current or not respectively; and if the current value of the third thyristor and the current value of the fourth thyristor reach the second holding current, stopping outputting the second driving signal based on the controller, and controlling the third thyristor and the fourth thyristor to be kept on.

As in the above embodiments, the characteristics of the thyristors are utilized, and in the charging process, after the current value of the third thyristor and the current value of the fourth thyristor reach the second holding current, the controller pin no longer outputs the second driving signal, and the third thyristor and the fourth thyristor can be always turned on based on the characteristics thereof.

As a refinement of the above embodiment, after charging with the precharge circuit of the third and fourth thyristors turned on, the method further includes, but is not limited to, the following process: and after the current values passing through the third thyristor and the fourth thyristor are reduced to a second preset current threshold value, controlling the third thyristor and the fourth thyristor to be naturally turned off.

And in the charging process, namely after the vehicle battery is charged, the current of the charging circuit is reduced, and after the current is reduced to a second preset current threshold, the third thyristor and the fourth thyristor are naturally turned off, wherein the second preset current threshold is a current value at which the conduction of the third thyristor and the fourth thyristor cannot be maintained.

As an extension of the above embodiment, at least one thyristor is determined as the first thyristor and at least one thyristor is determined as the second thyristor; the current carrying capacity of at least two thyristors formed by connecting the first thyristor and the second thyristor in series is set to be the same as that of the precharge circuit.

In this embodiment, the first thyristor may be a transistor group in a specific implementation process, where the transistor group is formed by connecting at least two thyristors in series, and the current carrying capacity of the transistor group obtained by connecting the thyristors in series is the same as that of a circuit in which the first thyristor is located. The second thyristor in the precharge circuit with the first thyristor may be a thyristor group in the implementation process, and this embodiment will not be described again because it is the same as the first thyristor in the implementation.

As an extension of the above embodiment, at least one thyristor is determined as the third thyristor and at least one thyristor is determined as the fourth thyristor; the current carrying capacity of at least two thyristors formed by arranging the third thyristor and the fourth thyristor in series is the same as that of the charging circuit.

The conditions of the third thyristor and the fourth thyristor are the same as those of the first thyristor and the second thyristor, and the thyristor group may be adopted, and the current carrying capacity of the adopted thyristor group is required to meet the preset condition, so that for clarity and conciseness, the description of this embodiment is omitted.

In summary, the following effects can be achieved in this embodiment:

1. the precharge circuit and the charging circuit are controlled based on the first semi-control type electronic device and the second semi-control type electronic device to replace the electromagnetic relay respectively, so that the problem that the contact points of the electromagnetic relay are easily damaged in an accumulated manner and the conductivity is affected when the charging circuit is controlled by the electromagnetic relay is solved.

2. The embodiment ensures that the vehicle charging control process is concise and efficient by utilizing the characteristic of reverse cut-off of the thyristor. Corresponding to the vehicle charging control method, the invention also provides a vehicle charging control unit. Since the control unit embodiment of the present invention corresponds to the above-described method embodiment, details not disclosed in the control unit embodiment may refer to the above-described method embodiment, and details are not described in detail in the present invention.

Fig. 2 is a schematic structural diagram of a vehicle charging control unit according to an embodiment of the present disclosure, as shown in fig. 2, including:

A control unit 21 for controlling the precharge circuit to be turned on based on the first half-control type electronic device in response to the charge request, and performing the precharge; after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge; the pre-charging circuit is connected with the charging circuit in parallel, and the pre-charging circuit and the charging circuit are turned on and turned off relatively reversely.

The present disclosure provides a control unit of vehicle charge control, including: in response to the charging request, controlling a precharge circuit based on the first half-control type electronic device to conduct and precharge; after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge; the precharge circuit is connected in parallel with the charging circuit, and the precharge circuit and the charging circuit are conducted and are turned off in opposite directions, compared with the prior art that the charging circuit forms a conductive loop through contact of the electromagnetic relay through metal contacts, the precharge circuit and the charging circuit are controlled to form the conductive loop based on the fact that the first half-control type electronic device and the second half-control type electronic device replace the electromagnetic relay respectively, and switching control of the circuit is achieved.

Further, in one possible implementation manner of this embodiment, as shown in fig. 2, the control unit 21 includes:

A first output module 211 for outputting a first driving signal to gates of the first and second thyristors based on a controller;

a precharge module 212 for performing precharge when the precharge circuit composed of the first thyristor and the second thyristor is turned on.

Further, in one possible implementation of the present embodiment, as shown in fig. 2, the precharge module 212 is further configured to:

Further, in a possible implementation manner of this embodiment, as shown in fig. 2, the control unit 21 further includes:

a second output module 213 for outputting a second driving signal to gates of the third and fourth thyristors, respectively, based on the controller;

a charging module 214, configured to perform charging when the precharge circuit composed of the third thyristor and the fourth thyristor is turned on.

And the turn-off module 215 is configured to control the first thyristor and the second thyristor to be naturally turned off after the current values passing through the first thyristor and the second thyristor drop to a first preset current threshold value.

Further, in one possible implementation of this embodiment, as shown in fig. 2, the charging module 214 is further configured to:

Further, in one possible implementation manner of this embodiment, as shown in fig. 2, the shutdown module 215 is further configured to:

a determining module 216 for determining at least one thyristor as the first thyristor and at least one thyristor as the second thyristor;

a setting module 217, configured to set a current carrying capability of at least two thyristors formed by connecting the first thyristor and the second thyristor in series to be the same as a current carrying capability of the precharge circuit.

Further, in a possible implementation manner of this embodiment, the determining module 216 is further configured to:

The setting module 217 is further configured to set a current carrying capability of at least two thyristors formed by connecting the third thyristor and the fourth thyristor in series to be the same as a current carrying capability of the charging circuit.

The foregoing explanation of the method embodiment is also applicable to the apparatus of this embodiment, and the principle is the same, and this embodiment is not limited thereto.

According to embodiments of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

FIG. 3 illustrates a schematic block diagram of an example electronic device 300 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.

As shown in fig. 3, the apparatus 300 includes a computing unit 301 that can perform various appropriate actions and processes according to a computer program stored in a ROM (Read-Only Memory) 302 or a computer program loaded from a storage unit 308 into a RAM (Random Access Memory ) 303. In the RAM 303, various programs and data required for the operation of the device 300 may also be stored. The computing unit 301, the ROM 302, and the RAM 303 are connected to each other by a bus 304. An I/O (Input/Output) interface 305 is also connected to bus 304.

Various components in device 300 are connected to I/O interface 305, including: an input unit 303 such as a keyboard, a mouse, and the like; an output unit 307 such as various types of displays, speakers, and the like; a storage unit 308 such as a magnetic disk, an optical disk, or the like; and a communication unit 309 such as a network card, modem, wireless communication transceiver, etc. The communication unit 309 allows the device 300 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.

The computing unit 301 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 301 include, but are not limited to, a CPU (Central Processing Unit ), a GPU (Graphic Processing Units, graphics processing unit), various specialized AI (ARTIFICIAL INTELLIGENCE ) computing chips, various computing units running machine learning model algorithms, DSPs (DIGITAL SIGNAL Processor ), and any suitable Processor, controller, microcontroller, etc. The computing unit 301 executes the respective methods and processes described above, such as a vehicle charge control method. For example, in some embodiments, the vehicle charge control method may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as storage unit 308. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 300 via the ROM 302 and/or the communication unit 309. When the computer program is loaded into RAM 303 and executed by computing unit 301, one or more steps of the method described above may be performed. Alternatively, in other embodiments, the computing unit 301 may be configured to perform the aforementioned vehicle charging control method by any other suitable means (e.g. by means of firmware).

Various implementations of the systems and techniques described here above can be implemented in digital electronic circuitry, integrated Circuit System, FPGA (Field Programmable GATE ARRAY ), ASIC (Application-SPECIFIC INTEGRATED Circuit, application-specific integrated Circuit), ASSP (Application SPECIFIC STANDARD Product, application-specific standard Product), SOC (System On Chip ), CPLD (Complex Programmable Logic Device, complex programmable logic device), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, RAM, ROM, EPROM (ELECTRICALLY PROGRAMMABLE READ-Only-Memory, erasable programmable read-Only Memory) or flash Memory, an optical fiber, a CD-ROM (Compact Disc Read-Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., CRT (Cathode-Ray Tube) or LCD (LiquidCrystal Display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: LAN (Local Area Network ), WAN (Wide Area Network, wide area network), internet and blockchain networks.

The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service ("Virtual PRIVATE SERVER" or simply "VPS") are overcome. The server may also be a server of a distributed system or a server that incorporates a blockchain.

It should be noted that, artificial intelligence is a subject of studying a certain thought process and intelligent behavior (such as learning, reasoning, thinking, planning, etc.) of a computer to simulate a person, and has a technology at both hardware and software level. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, big data processing, and the like; the artificial intelligence software technology mainly comprises a computer vision technology, a voice recognition technology, a natural language processing technology, a machine learning/deep learning technology, a big data processing technology, a knowledge graph technology and the like.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel or sequentially or in a different order, provided that the desired results of the technical solutions of the present disclosure are achieved, and are not limited herein.

The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. A vehicle charge control method, characterized by comprising:

2. The method of claim 1, wherein the first half-controlled electronic device comprises a first thyristor and a second thyristor, wherein controlling the precharge circuit to conduct based on the first half-controlled electronic device in response to the charge request comprises:

3. The method of claim 2, wherein the precharging with the precharge circuit of the first and second thyristors turned on comprises:

4. A method according to claim 3, wherein the second semi-controlled electronic device comprises a third thyristor and a fourth thyristor, and wherein after the precharge is completed, controlling the charge circuit based on the second semi-controlled electronic device to be turned on, and wherein charging comprises:

5. The method of claim 4, wherein prior to outputting a second drive signal to gates of the third and fourth thyristors, respectively, based on the controller, the method comprises:

6. The method of claim 4, wherein said charging with the precharge circuit of the third and fourth thyristors turned on comprises:

7. The method according to claim 6, wherein after charging with the precharge circuit of the third and fourth thyristors turned on, the method comprises:

8. The method according to any one of claims 2-7, wherein prior to outputting a first drive signal to the gates of the first and second thyristors based on a controller, the method further comprises:

Determining at least one thyristor as the first thyristor and at least one thyristor as the second thyristor;

9. The method according to any one of claims 4-7, characterized in that before outputting a second drive signal to the gates of the third and fourth thyristors, respectively, based on the controller, the method further comprises:

10. A control unit for controlling the conduction of a precharge circuit based on the first half-control type electronic device to perform precharge in response to a charge request; after the precharge is completed, a charging circuit formed by a second semi-control type electronic device is controlled to be conducted so as to charge; the pre-charging circuit is connected with the charging circuit in parallel, and the pre-charging circuit and the charging circuit are turned on and turned off relatively reversely.

11. An electronic device, comprising:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-9.

12. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of any one of claims 1-9.

13. A computer program product comprising a computer program which, when executed by a processor, implements the method according to any of claims 1-9.