Automobile slow charging control method, device and controller

Abstract

The application discloses a slow charging control method, device and controller of an automobile, and belongs to the technical field of new energy automobiles. The method comprises the following steps: determining a target value of a slow charging ignition state untrustworthy variable according to a charging gun connection state and a slow charging ignition state variable, wherein the target value of the slow charging ignition state untrustworthy variable is used for indicating whether the slow charging ignition state variable is trustworthy; if the target value, the charging gun connection state and the slow charging ignition state variable satisfy a high-voltage system power-on condition, then controlling the high-voltage system of the vehicle to be powered on; and sending a charging start instruction to a vehicle-mounted charger, wherein the charging start instruction is used for instructing the vehicle-mounted charger to convert alternating current transmitted by a charging pile into direct current, so as to slowly charge the vehicle. By adopting the application, the unexpected power-on of the high-voltage system caused by the false triggering of the slow charging ignition signal can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy vehicles, and in particular to a control method and device for slow charging of a vehicle and a controller. BACKGROUND

[0002] With the rapid development of new energy vehicle technology, the market share of new energy vehicles has greatly improved. For new energy vehicles, slow charging is a very common working condition.

[0003] Under the slow charging working condition, after the OBC (On Board Charger, vehicle-mounted charger) detects that the charging gun is completely connected to the charging pile, the vehicle-mounted charger sends a slow charging ignition signal to the VCU (Vehicle Control Unit, vehicle controller), and the vehicle controller controls the high-voltage system of the vehicle to be powered on after receiving the slow charging ignition signal. After the charging is completed, the VCU controls the high-voltage system of the vehicle to be powered off.

[0004] However, if the slow charging ignition signal is mistakenly triggered, the high-voltage system of the vehicle may be abnormally powered on in a situation where it should be powered off. SUMMARY

[0005] Embodiments of the present application provide a control method, device and controller for slow charging of a vehicle, which can avoid the problem of abnormal power-on caused by mistaken triggering of a slow charging ignition signal. The technical solution is as follows:

[0006] In a first aspect, a control method for slow charging of a vehicle is provided, and the method comprises:

[0007] determining a target value of a slow charging ignition state untrustworthy variable according to a charging gun connection state and a slow charging ignition state variable, wherein the target value of the slow charging ignition state untrustworthy variable is used to indicate whether the slow charging ignition state variable is trustworthy;

[0008] controlling the high-voltage system of the vehicle to be powered on if the target value, the charging gun connection state and the slow charging ignition state variable satisfy a high-voltage system power-on condition;

[0009] sending a charging start instruction to the vehicle-mounted charger, wherein the charging start instruction is used to instruct the vehicle-mounted charger to convert alternating current transmitted by the charging pile into direct current to perform slow charging on the vehicle.

[0010] In a possible implementation, the target value is 0 or 1;

[0011] When the target value is 0, the slow charging ignition state untrustworthy variable indicates that the slow charging ignition state variable is trustworthy;

[0012] When the target value is 1, the slow charging ignition state untrusted variable indicates that the slow charging ignition state variable is untrusted.

[0013] In a possible implementation, the target value of the slow charging ignition state untrusted variable is determined according to the charging gun connection state and the slow charging ignition state variable, including:

[0014] If the charging gun connection state is not connected and the value of the slow charging ignition state variable is 1, the target value of the slow charging ignition state untrusted variable is determined as 1.

[0015] In a possible implementation, the target value of the slow charging ignition state untrusted variable is determined according to the charging gun connection state and the slow charging ignition state variable, including:

[0016] If the charging gun connection state is connected and the value of the slow charging ignition state variable is 1, the target value of the slow charging ignition state untrusted variable is determined as 0.

[0017] In a possible implementation, the target value of the slow charging ignition state untrusted variable is determined according to the charging gun connection state and the slow charging ignition state variable, including:

[0018] If the charging gun connection state is connected and the value of the slow charging ignition state variable is 0, the target value of the slow charging ignition state untrusted variable is determined as 0.

[0019] In a possible implementation, the target value of the slow charging ignition state untrusted variable is determined according to the charging gun connection state and the slow charging ignition state variable, including:

[0020] If the charging gun connection state is not connected and the value of the slow charging ignition state variable is 0, the target value of the slow charging ignition state untrusted variable is determined as 0.

[0021] In a possible implementation, the high-voltage system power-on of the vehicle is controlled if the target value, the charging gun connection state and the slow charging ignition state variable satisfy a high-voltage system power-on condition, including:

[0022] If the target value is 0, the charging gun connection state is connected, and the value of the slow charging ignition state variable is 1, it is determined that the high-voltage system power-on condition is satisfied, and the high-voltage system power-on of the vehicle is controlled.

[0023] In a second aspect, a control device for slow charging of an automobile is provided, and the device includes:

[0024] A determination module is configured to determine a target value of a slow charging ignition state untrusted variable according to a charging gun connection state and a slow charging ignition state variable, where the target value of the slow charging ignition state untrusted variable is used to indicate whether the slow charging ignition state variable is trusted.

[0025] a control module configured to control the high-voltage system of the vehicle to be powered up if the target value, the charging gun connection state, and the slow-charging ignition state variable satisfy a high-voltage system power-up condition; and send a charging start instruction to the on-board charger, wherein the charging start instruction is used to instruct the on-board charger to convert alternating current transmitted by the charging pile into direct current to perform slow charging on the vehicle.

[0026] In a possible implementation, the target value is 0 or 1.

[0027] When the target value is 0, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is trustworthy.

[0028] When the target value is 1, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is untrustworthy.

[0029] In a possible implementation, the determination module is configured to:

[0030] If the charging gun connection state is not connected and the value of the slow-charging ignition state variable is 1, the determination module determines that the target value of the slow-charging ignition state untrustworthy variable is 1.

[0031] In a possible implementation, the determination module is configured to:

[0032] If the charging gun connection state is connected and the value of the slow-charging ignition state variable is 1, the determination module determines that the target value of the slow-charging ignition state untrustworthy variable is 0.

[0033] In a possible implementation, the determination module is configured to:

[0034] If the charging gun connection state is connected and the value of the slow-charging ignition state variable is 0, the determination module determines that the target value of the slow-charging ignition state untrustworthy variable is 0.

[0035] In a possible implementation, the determination module is configured to:

[0036] If the charging gun connection state is not connected and the value of the slow-charging ignition state variable is 0, the determination module determines that the target value of the slow-charging ignition state untrustworthy variable is 0.

[0037] In a possible implementation, the control module is configured to:

[0038] If the target value is 0, the charging gun connection state is connected, and the value of the slow-charging ignition state variable is 1, it is determined that the high-voltage system power-up condition is satisfied, and the high-voltage system of the vehicle is controlled to be powered up.

[0039] In a third aspect, a vehicle controller is provided, which includes a processing unit and a storage unit, and the storage unit stores at least one instruction, which is loaded and executed by the processing unit to implement the operations performed by the control method for slow charging of an automobile according to the first aspect and possible implementation thereof.

[0040] In a fourth aspect, a computer readable storage medium is provided, which stores at least one instruction, which is loaded and executed by a controller to implement the operations performed by the control method for slow charging of an automobile according to the first aspect and possible implementation thereof.

[0041] In a fifth aspect, a computer program product is provided, which includes at least one instruction, which is loaded and executed by a processor to implement the operations performed by the control method for slow charging of an automobile according to the first aspect and possible implementation thereof.

[0042] The technical scheme provided in the present application has the beneficial effects that:

[0043] In the technical scheme provided in the present application, the slow charging ignition state untrusted variable is introduced, and the target value of the slow charging ignition state untrusted variable is used to indicate whether the slow charging ignition state variable is trusted, that is, the slow charging ignition state variable is checked through the slow charging ignition state untrusted variable, so that even if the slow charging ignition state variable is triggered by mistake, the slow charging ignition state variable triggered by mistake can be made untrusted through the slow charging ignition state untrusted variable, thereby avoiding the abnormal power-on problem caused by the slow charging ignition signal triggered by mistake. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical schemes in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0045] Figure 1 is a control method flowchart for slow charging of an automobile provided by the embodiments of the present application;

[0046] Figure 2 is a condition schematic diagram of high-voltage power-on under slow charging of an automobile provided by the embodiments of the present application;

[0047] Figure 3 is a control device schematic diagram for slow charging of an automobile provided by the embodiments of the present application. DETAILED DESCRIPTION

[0048] For the convenience of understanding the embodiments of the present application, the terms involved in the embodiments of the present application are introduced as follows:

[0049] Slow charging

[0050] Slow charging of new energy vehicles, also known as "AC slow charging", refers to a charging mode using AC (Alternating Current) to convert electrical energy into DC (Direct Current) suitable for power batteries through OBC (On Board Charger).

[0051] OBC

[0052] OBC is a charging device fixedly installed in the vehicle, which is responsible for converting AC power provided by the power grid or charging pile into DC power to charge the power battery.

[0053] With the rapid development of new energy vehicle technology, the market share of new energy vehicles has greatly improved. For new energy vehicles, slow charging is a very common working condition. Under the slow charging condition, after the OBC detects that the charging gun is completely connected with the charging pile, the on-board charger sends a slow charging ignition signal to the VCU, and after the VCU receives the slow charging ignition signal, the slow charging ignition state variable is set to 1, and the BMS (Battery Management System) is awakened, and after the BMS is awakened, it performs self-checking, which includes detecting battery voltage, temperature, insulation state, etc. After the self-checking is passed, the BMS closes the main negative relay and the pre-charge relay in turn, and starts pre-charging. When the pre-charging voltage is completed, the BMS closes the main positive relay and opens the pre-charge relay, and completes the power-on of the high-voltage system. Then, the VCU sends a charging start instruction to the OBC, and the OBC starts converting AC power from the charging pile or power grid into DC power to charge the power battery. After the charging is completed, the OBC sends a slow charging completion message to the VCU, the VCU sets the slow charging ignition state variable to 0, and controls the high-voltage system of the vehicle to power off.

[0054] However, if the slow charging ignition signal is mis-triggered, the slow charging ignition state variable is still 1 after the slow charging is completed, which may cause the high-voltage system of the vehicle to fail to power off, and it is also possible that the slow charging ignition state variable has been mis-triggered to 1 before the charging gun is completely connected, causing the vehicle high-voltage to be unexpectedly powered on.

[0055] Based on this, the embodiment of the present application provides a control method for slow charging of an automobile, in which a slow charging ignition state untrusted variable is introduced, and a target value of the slow charging ignition state untrusted variable is used to indicate whether the slow charging ignition state variable is trusted, that is, the slow charging ignition state variable is checked through the slow charging ignition state untrusted variable, so that even if the slow charging ignition state variable is triggered by mistake, the slow charging ignition state variable triggered by mistake can be made untrusted through the slow charging ignition state untrusted variable, thereby avoiding the abnormal power-on problem caused by the slow charging ignition state variable triggered by mistake.

[0056] The control method for slow charging of an automobile provided by the embodiment of the present application will be described below with reference to the accompanying drawings. The control method for slow charging of an automobile provided by the embodiment of the present application can be implemented by a VCU, as shown in Figure 1 , the method can include the following steps:

[0057] Step 101, determining a target value of a slow charging ignition state untrusted variable according to a charging gun connection state and a slow charging ignition state variable.

[0058] The target value of the slow charging ignition state untrusted variable is used to indicate whether the slow charging ignition state variable is trusted.

[0059] In implementation, the VCU can maintain the values of the slow charging ignition state variable and the slow charging ignition state untrusted variable. The target value of the slow charging ignition state untrusted variable can be determined by the VCU according to the values of the charging gun connection state and the slow charging ignition state variable. When the target value of the slow charging ignition state untrusted variable is 0, the slow charging ignition state untrusted variable indicates that the slow charging ignition state variable is trusted; when the target value of the slow charging ignition state untrusted variable is 1, the slow charging ignition state untrusted variable indicates that the slow charging ignition state variable is untrusted.

[0060] The determination of the target value of the slow charging ignition state untrusted variable will be described below:

[0061] In the case that the charging gun connection state is not connected and the value of the slow charging ignition state variable is 1, since the charging gun is not connected, it is indicated that the high-voltage system cannot be powered on at this time, and therefore the target value of the slow charging ignition state untrusted variable is determined to be 1, indicating that the slow charging ignition state variable is untrusted. This situation can occur after the slow charging is completed and the charging gun is pulled out, the slow charging ignition signal is triggered by mistake, causing the VCU to set the slow charging ignition state variable to 1, at this time, the value of the slow charging ignition state variable is 1, which is abnormal and untrusted.

[0062] If the charging gun connection state is not connected and the value of the slow charging ignition state variable is 0, it is determined that the target value of the slow charging ignition state untrusted variable is 0. This case may occur when the charging gun has been connected, but the BMS has not completed the self-check, or the slow charging ignition signal has not been sent to the VCU, at this time the value of the slow charging ignition state variable is 0 is normal, trusted.

[0063] If the charging gun connection state is connected, slow charging has been completed, and after slow charging is completed, the value of the slow charging ignition state variable is 1 for a first duration, it is determined that the target value of the slow charging ignition state untrusted variable is 1. This case may occur when slow charging has been completed, but the slow charging ignition state variable has not been set to 0 for a long time, at this time the value of the slow charging ignition state variable is 1 is abnormal, untrusted. The first duration can be configured according to actual needs, for example, the first duration is 1 second.

[0064] In the slow charging start stage, if the charging gun connection state is connected and the value of the slow charging ignition state variable is 1, it is determined that the target value of the slow charging ignition state untrusted variable is 0. This case is a normal case, and the value of the slow charging ignition state variable is 1 is normal, trusted.

[0065] If the charging gun connection state is connected and the value of the slow charging ignition state variable is 0, it is determined that the target value of the slow charging ignition state untrusted variable is 0. This case is a normal case, and the value of the slow charging ignition state variable is 0 is normal, trusted.

[0066] In addition, after the target value of the slow charging ignition state untrusted variable is 1, the target value will be set to 0 only when the reset condition is met. The reset condition can be any of the following conditions:

[0067] Reset condition one:

[0068] The charging gun connection signal is a rising edge, that is, the connection state of the charging gun is connected.

[0069] Reset condition two:

[0070] An intelligent power compensation request is received, which is triggered by the user.

[0071] Reset condition three:

[0072] A 15 electrical signal is detected, that is, the high-voltage system is powered on.

[0073] When the pre-charge voltage reaches completion, the BMS closes the main positive relay and opens the pre-charge relay, completing the power-on of the high-voltage system. Then, the VCU sends a charging start instruction to the OBC, and the OBC starts to convert the alternating current of the charging pile or power grid into direct current to charge the power battery. After the charging is completed, the OBC sends a slow charging completion message to the VCU, and the VCU sets the slow charging ignition state variable to 0 and controls the high-voltage system of the vehicle to power off.

[0074] Step 102, if the target value, the charging gun connection state and the slow charging ignition state variable meet the high-voltage system power-on condition, the high-voltage system of the vehicle is controlled to power on.

[0075] In implementation, if the charging gun connection state is connected, the value of the slow charging ignition state variable is 1, the target value of the slow charging ignition state untrusted variable is 0, and the VCU and the BMS communication is normal, it is determined that the high-voltage system power-on condition is met, and the high-voltage system of the vehicle is controlled to power on.

[0076] Referring to Figure 2 , a comparison between the high-voltage system power-on condition in the related art and the high-voltage system power-on condition in the embodiment of the present application in the slow charging working condition is shown. The high-voltage system power-on condition in the related art is "charging gun connection, slow charging ignition state variable = 1 and VCU and BMS communication normal". Compared with the related art, an additional condition "target value of slow charging ignition state untrusted variable = 0" is added in the technical solution provided in the embodiment of the present application, that is, "charging gun connection, slow charging ignition state variable = 1, VCU and BMS communication normal and slow charging ignition state untrusted variable = 0". Through this additional condition, the problem of unexpected power-on of the high-voltage system or the problem of being unable to power off caused by the slow charging ignition signal mis-triggering can be avoided.

[0077] Step 103, sending a charging start instruction to the on-board charger.

[0078] The charging start instruction is used to instruct the on-board charger to convert the alternating current transmitted by the charging pile into direct current to slow charge the vehicle.

[0079] In implementation, after the high-voltage power-on is completed, the VCU sends a charging start instruction to the OBC, and the OBC starts to convert the alternating current of the charging pile or power grid into direct current to charge the power battery.

[0080] After the slow charging is completed, after the charging is completed, the OBC sends a slow charging completion message to the VCU, and the VCU sets the slow charging ignition state variable to 0 and controls the high-voltage system of the vehicle to power off.

[0081] In addition, in the technical solution provided in the embodiment of the present application, a new way of high-voltage system power-off is introduced on the basis of the related art:

[0082] If the slow-charging ignition untrustworthy variable is 1 and lasts for a second time length, the high-voltage system is directly controlled to power off. The second time length can be configured according to actual requirements, and the embodiments of the present application do not limit this.

[0083] Advantages of the slow-charging ignition signal untrustworthy variable: under normal charging conditions, after charging is completed, if the slow-charging ignition signal is abnormal, the slow-charging ignition signal untrustworthy variable can make the vehicle normally power off; when the vehicle high voltage is not connected, the slow-charging ignition signal is mistakenly sent, and the vehicle will not be powered on by the high-voltage system; when the vehicle is in the high-voltage system power-on working condition, abnormal power-off will not be caused due to the existence of the reset condition and the delay; because of the existence of the reset condition, the slow-charging ignition signal untrustworthy variable will not affect the normal use of charging and high-voltage power-on and power-off.

[0084] In the technical solutions provided in the present application, a slow-charging ignition state untrustworthy variable is introduced, and a target value of the slow-charging ignition state untrustworthy variable is used to indicate whether the slow-charging ignition state variable is trustworthy, that is, the slow-charging ignition state variable is checked through the slow-charging ignition state untrustworthy variable, so that even if the slow-charging ignition state variable is mistakenly triggered, the slow-charging ignition state variable that is mistakenly triggered can be made untrustworthy through the slow-charging ignition state untrustworthy variable, thereby avoiding the problem of abnormal power-on caused by the slow-charging ignition state variable being mistakenly triggered.

[0085] All the optional technical solutions described above can be combined to form optional embodiments of the present application, which will not be described one by one here.

[0086] The embodiments of the present application also provide a control device for slow charging of an automobile, as shown in Figure 3 The device can include a determination module 310 and a control module 320, wherein:

[0087] The determination module 310 is configured to determine a target value of a slow-charging ignition state untrustworthy variable according to a charging gun connection state and a slow-charging ignition state variable, wherein the target value of the slow-charging ignition state untrustworthy variable is used to indicate whether the slow-charging ignition state variable is trustworthy;

[0088] The control module 320 is configured to control the high-voltage system of the vehicle to be powered on if the target value, the charging gun connection state and the slow-charging ignition state variable satisfy a high-voltage system power-on condition, and send a charging start instruction to a vehicle-mounted charger, wherein the charging start instruction is used to instruct the vehicle-mounted charger to convert alternating current transmitted by a charging pile into direct current to slow charge the vehicle.

[0089] In a possible implementation, the target value is 0 or 1;

[0090] When the target value is 0, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is trustworthy;

[0091] When the target value is 1, the slow charging ignition state untrusted variable indicates that the slow charging ignition state variable is untrusted.

[0092] In a possible implementation, the determining module 310 is configured to:

[0093] If the charging gun connection state is not connected and the value of the slow charging ignition state variable is 1, it is determined that the target value of the slow charging ignition state untrusted variable is 1.

[0094] In a possible implementation, the determining module 310 is configured to:

[0095] If the charging gun connection state is connected and the value of the slow charging ignition state variable is 1, it is determined that the target value of the slow charging ignition state untrusted variable is 0.

[0096] In a possible implementation, the determining module 310 is configured to:

[0097] If the charging gun connection state is connected and the value of the slow charging ignition state variable is 0, it is determined that the target value of the slow charging ignition state untrusted variable is 0.

[0098] In a possible implementation, the determining module 310 is configured to:

[0099] If the charging gun connection state is not connected and the value of the slow charging ignition state variable is 0, it is determined that the target value of the slow charging ignition state untrusted variable is 0.

[0100] In a possible implementation, the control module 320 is configured to:

[0101] If the target value is 0, the charging gun connection state is connected, and the value of the slow charging ignition state variable is 1, it is determined that the high-voltage system power-on condition is met, and the high-voltage system of the vehicle is powered on.

[0102] In the technical solutions provided in the present application, the slow charging ignition state untrusted variable is introduced, and the target value of the slow charging ignition state untrusted variable is used to indicate whether the slow charging ignition state variable is trusted, that is, the slow charging ignition state variable is checked through the slow charging ignition state untrusted variable, so that even if the slow charging ignition state variable is triggered by mistake, the slow charging ignition state variable triggered by mistake can be made untrusted through the slow charging ignition state untrusted variable, thereby avoiding the abnormal power-on problem caused by the slow charging ignition state variable triggered by mistake.

[0103] It should be noted that the above-mentioned embodiments provide the control device for slow charging of the automobile, when the control device for slow charging of the automobile is used to control slow charging of the automobile, only the above-mentioned division of the functional modules is used as an example for illustration, in actual application, the above-mentioned functions can be distributed to different functional modules according to needs, that is, the internal structure of the controller is divided into different functional modules to complete all or part of the functions described above. In addition, the control device for slow charging of the automobile and the control method for slow charging of the automobile provided in the above-mentioned embodiments belong to the same concept, and the specific implementation process is described in detail in the method embodiments, which will not be repeated here.

[0104] In the example embodiments, a vehicle controller is also provided, which can include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The vehicle controller can be implemented in at least one of a hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The vehicle controller can also include a main processor and a coprocessor, the main processor being a processor for processing data in a wake-up state, and the coprocessor being a low-power processor for processing data in a standby state. In some embodiments, the vehicle controller can be integrated with a GPU (Graphics Processing Unit) for rendering and drawing the content required to be displayed by the display screen. In some examples, the vehicle controller can also include an AI (Artificial Intelligence) processor, which can be used to process computing operations related to machine learning.

[0105] In the example embodiments, a computer-readable storage medium, such as a memory including instructions, is also provided, which can be executed by the vehicle controller to complete the control method for slow charging of the automobile in the above-mentioned embodiments. The computer-readable storage medium can be non-transitory. For example, the computer-readable storage medium can be a ROM (Read-Only Memory), a RAM (Random Access Memory), a CD-ROM (Compact Disc Read-Only Memory), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0106] In the description of the application embodiments, the description of the terms "some embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the described embodiments or examples are included in at least one embodiment or example of the application. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0107] It can be understood that "multiple" in this application means two or more, and other quantifiers are similar. The association relationship between the associated objects described by "and / or" means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship. The singular form "a", "said" and "the" are also intended to include the plural form, unless the context clearly indicates otherwise.

[0108] It can be further understood that the terms "first", "second", etc. are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the application.

[0109] It can be further understood that the terms "center", "longitudinal", "transverse", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0110] It should be further understood that the terms "mounting", "connection", "connecting", "fixed", "unfixed", "communication" and like terms should be construed broadly according to the terms in the present application unless otherwise defined and limited, for example, they can be fixed connection, detachable connection or integral molding; mechanical connection, electrical connection or mutual communication; direct connection without other components or indirect connection through intermediate medium; internal connection of two elements or interaction between two elements. The specific meaning of the above terms in the present application can be understood according to the specific circumstances by those skilled in the art.

[0111] It should be further understood that although the operations are described in a specific order in the accompanying drawings in the embodiments of the present application, it should not be construed that the operations must be performed in the specific order or in a serial order, or all the shown operations must be performed to obtain the desired results. In a specific environment, multitasking and parallel processing can be advantageous.

[0112] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the aspects disclosed herein. It is intended that the present application cover any and all variations of the present application comprising adaptations, modifications, combinations, subcombinations, and alternatives falling within the general scope of the present application. The specification and examples are illustrative only and not restrictive of the present application. The true scope and spirit of the application is indicated by the appended claims.

[0113] It should be understood that the present application is not limited to the precise construction that has been described and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The scope of the present application is indicated by the appended claims, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

[0114] It should be noted that the information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.) and signals (including but not limited to signals transmitted between user terminals and other devices) involved in the present application are authorized by the user or fully authorized by all parties, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards of relevant countries and regions.

[0115] Those skilled in the art can understand that all or part of the steps of the above-mentioned embodiments can be completed by hardware, or by program to instruct relevant hardware to complete, and the program can be stored in a computer readable storage medium, and the storage medium mentioned above can be read only memory, disk or optical disk, etc.

[0116] The above merely provides the optional embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control method of automobile slow charging, characterized by, The method comprises: determining a target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable, wherein when the target value is 0, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is trustworthy, and when the target value is 1, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is untrustworthy; the determining of the target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable comprises: if the charging gun connection state is connected and the value of the slow-charging ignition state variable is 1, determining that the target value of the slow-charging ignition state untrustworthy variable is 0; if the target value is 0, the charging gun connection state is connected, and the value of the slow-charging ignition state variable is 1, determining that a high-voltage system power-on condition is met, and controlling the high-voltage system of the vehicle to be powered on; sending a charging start instruction to the on-board charger, wherein the charging start instruction is used to instruct the on-board charger to convert alternating current transmitted by the charging pile into direct current to slowly charge the vehicle.

2. The method of claim 1, wherein, The determining of the target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable comprises: if the charging gun connection state is not connected and the value of the slow-charging ignition state variable is 1, determining that the target value of the slow-charging ignition state untrustworthy variable is 1.

3. The control method according to claim 1, characterized by, The determining of the target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable comprises: if the charging gun connection state is connected and the value of the slow-charging ignition state variable is 0, determining that the target value of the slow-charging ignition state untrustworthy variable is 0.

4. The control method according to claim 1, characterized by, The determining of the target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable comprises: if the charging gun connection state is not connected and the value of the slow-charging ignition state variable is 0, determining that the target value of the slow-charging ignition state untrustworthy variable is 0.

5. A control device for slow charging of an automobile, characterized by The device comprises: a determining module configured to determine a target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable, wherein when the target value is 0, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is trustworthy, and when the target value is 1, the slow-charging ignition state untrustworthy variable indicates that the slow-charging ignition state variable is untrustworthy; the determining of the target value of the slow-charging ignition state untrustworthy variable according to the charging gun connection state and the slow-charging ignition state variable comprises: if the charging gun connection state is connected and the value of the slow-charging ignition state variable is 1, determining that the target value of the slow-charging ignition state untrustworthy variable is 0; a control module configured to determine that a high-voltage system power-on condition is met if the target value is 0, the charging gun connection state is connected, and the value of the slow-charging ignition state variable is 1, and control the high-voltage system of the vehicle to be powered on; and send a charging start instruction to the on-board charger, wherein the charging start instruction is used to instruct the on-board charger to convert alternating current transmitted by the charging pile into direct current to slowly charge the vehicle.

6. The control device of claim 5, wherein The determining module is configured to If the charging gun connection state is not connected and the value of the slow charging ignition state variable is 1, it is determined that the target value of the slow charging ignition state untrustworthy variable is 1.

7. A vehicle control unit characterized by comprising: The vehicle controller comprises a processing unit and a storage unit, and at least one instruction is stored in the storage unit, the instruction is loaded and executed by the processing unit to realize the operation performed by the control method of the automobile slow charging according to any one of claims 1 to 4.

8. A computer-readable storage medium, characterized in that, At least one instruction is stored in the computer readable storage medium, and the instruction is loaded and executed by the controller to realize the operation performed by the control method of the automobile slow charging according to any one of claims 1 to 4.

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