Vehicle testing method, device, vehicle controller and vehicle

Abstract

The embodiment of the present application provides a vehicle testing method, device, vehicle controller and vehicle, the vehicle testing method comprising: obtaining the target power condition corresponding to the first test task of the vehicle; determining the operation mode corresponding to at least one target power-consuming device of the vehicle based on the task information of the second test task of the vehicle; the task information includes the test conditions and / or the function to be tested; controlling each target power-consuming device to operate according to the corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition; executing the second test task while each target power-consuming device is operating according to the corresponding operation mode. In this way, the test time can be reused, the development test time of the whole vehicle can be reduced, the development test efficiency can be improved, and the test resources can be reused, the waste of resources can be reduced, and the development test cost of the vehicle can be reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a vehicle testing method, device, vehicle controller and vehicle. Background Art

[0002] This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] With the development of new energy battery technology, new energy vehicles equipped with batteries have been widely used. In the development and testing process of new energy vehicles, since the function of the whole vehicle is greatly affected by the power of the battery, it is often necessary to use the battery to reach the corresponding state of charge (SOC) as a prerequisite for relevant functional tests. This leads to the need to continuously discharge the vehicle during the experiment. However, in the related technology, the process of discharging the vehicle is usually time-consuming, which makes the development and testing process of the whole vehicle less efficient and the testing cost higher. Summary of the invention

[0004] In view of this, the embodiments of the present application hope to provide a vehicle testing method, device, vehicle controller and vehicle, which can realize the reuse of test time, reduce the time spent on development and testing of the whole vehicle, improve the efficiency of development and testing, and realize the reuse of test resources, reduce resource waste, and reduce the cost of vehicle development and testing.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] The present application provides a vehicle testing method, including:

[0007] Obtaining a target power condition corresponding to a first test task of the vehicle;

[0008] Determining an operation mode corresponding to at least one target electrical device of the vehicle based on task information of a second test task of the vehicle; the task information includes test conditions and / or functions to be tested;

[0009] Control each target power-consuming device to operate according to the corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition;

[0010] The second test task is performed while each target electrical device is operating in a corresponding operating mode.

[0011] In the vehicle testing method of the embodiment of the present application, first, the target power condition corresponding to the first test task of the vehicle is obtained; then, based on the task information of the second test task of the vehicle, the operation mode corresponding to at least one target power-consuming device of the vehicle is determined, and the task information includes test conditions and / or functions to be tested; finally, each target power-consuming device is controlled to operate according to the corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition, and the second test task is performed during the operation of each target power-consuming device according to the corresponding operation mode. In this way, on the one hand, by controlling each target power-consuming device to operate according to the corresponding operation mode, the vehicle can be discharged at a faster speed in situ; on the other hand, the operation mode of each target power-consuming device is determined according to the test conditions and / or functions to be tested of the second test task, and the second test task is performed simultaneously during the discharge of the battery, which can realize the reuse of test time, reduce the time consumption of development and testing of the whole vehicle, improve the efficiency of development and testing, and can realize the reuse of test resources, reduce resource waste, and reduce the development and testing cost of the vehicle.

[0012] In some embodiments, the task information includes test conditions, the test conditions include a target in-vehicle temperature, and the target electrical equipment includes an air-conditioning compressor; based on the task information of the second test task of the vehicle, an operating mode corresponding to at least one target electrical equipment of the vehicle is determined, including: based on the target in-vehicle temperature, determining a first operating mode corresponding to the air-conditioning compressor, so that the air-conditioning compressor adjusts the vehicle's in-vehicle temperature to the target in-vehicle temperature after operating in the first operating mode.

[0013] In the above embodiment, the first operating mode corresponding to the air-conditioning compressor is determined according to the target in-vehicle temperature of the second test task, so that the in-vehicle temperature of the vehicle is adjusted to the target in-vehicle temperature after the air-conditioning compressor operates in the first operating mode. In this way, suitable test conditions can be provided for the second test task during the vehicle discharge process, so that the test result of the second test task is more accurate.

[0014] In some embodiments, based on the target in-vehicle temperature, the first operating mode corresponding to the air-conditioning compressor is determined, including one of the following: when the target in-vehicle temperature is lower than a first temperature threshold, the first operating mode is determined to be to start the cooling mode; when the target in-vehicle temperature is higher than or equal to the first temperature threshold and lower than the second temperature threshold, the first operating mode is determined to be to start the cooling mode and the heating mode alternately; when the target in-vehicle temperature is higher than or equal to the second temperature threshold, the first operating mode is determined to be to start the heating mode.

[0015] In the above embodiment, when the target in-vehicle temperature is lower than the first temperature threshold, by determining that the first operating mode is to start the cooling mode, the in-vehicle temperature can be quickly adjusted and maintained below the first temperature threshold; when the target in-vehicle temperature is higher than or equal to the first temperature threshold and lower than the second temperature threshold, by determining that the first operating mode is to start the cooling mode and the heating mode alternately, the in-vehicle temperature can be adjusted and maintained between the first temperature threshold and the second temperature threshold; when the target in-vehicle temperature is higher than or equal to the second temperature threshold, by determining that the first operating mode is to start the heating mode, the in-vehicle temperature can be quickly adjusted and maintained above the second temperature threshold. In this way, an adaptive in-vehicle temperature can be provided for the second test task quickly and accurately, thereby improving the test accuracy and efficiency of the second test task.

[0016] In some embodiments, based on the task information of the second test task of the vehicle, the operating mode corresponding to at least one target electrical device of the vehicle is determined, including: based on the task information of the second test task, determining at least one target electrical device from the various electrical devices of the vehicle; based on the task information, determining the operating modes corresponding to the at least one target electrical device.

[0017] In the above embodiment, based on the task information of the second test task, at least one target electrical device is determined from the various electrical devices of the vehicle, and the operating mode corresponding to the at least one target electrical device is determined according to the task information. In this way, since the target electrical device to be operated for discharging and the operating mode corresponding to each target electrical device are determined according to the task information of the second test task, the target electrical device and the corresponding operating mode can be selected more flexibly to better adapt to the test conditions and / or the functions to be tested of the second test task.

[0018] In some embodiments, the task information includes a function to be tested; based on the task information of the second test task, at least one target electrical device is determined from the various electrical devices of the vehicle, including at least one of the following: when the function to be tested includes a first thermal management function of a drive motor of the vehicle, the drive motor is determined as the target electrical device; when the function to be tested includes a second thermal management function of a battery of the vehicle, the heating film of the battery is determined as the target electrical device.

[0019] In the above embodiment, when the function to be tested includes the first thermal management function of the vehicle's drive motor, the drive motor is determined as the target electrical device; when the function to be tested includes the second thermal management function of the vehicle's battery, the battery's heating film is determined as the target electrical device. In this way, according to the function to be tested of the second test task, a suitable target electrical device can be selected to discharge the battery, thereby improving the reuse rate of test resources and further reducing the vehicle's development and testing costs.

[0020] In some embodiments, based on the task information of the second test task of the vehicle, an operating mode corresponding to at least one target electrical device of the vehicle is determined, including at least one of the following: when it is determined based on the task information that the target electrical device includes an air-conditioning compressor, the operating mode corresponding to the air-conditioning compressor is determined to be alternating start and stop, and the maximum working gear is used during the startup process; when it is determined based on the task information that the target electrical device includes a drive motor, the operating mode corresponding to the drive motor is determined to be alternating acceleration and deceleration; when it is determined based on the task information that the target electrical device includes a heating film of a battery, the operating mode corresponding to the heating film is determined to turn on heating.

[0021] In the above embodiments, on the one hand, when it is determined based on the task information that the target electrical equipment includes an air-conditioning compressor, the operation mode corresponding to the air-conditioning compressor is determined to be alternating start and stop, and the maximum working gear is used during the startup process, so that the power consumption efficiency of the air-conditioning compressor during operation can be improved; on the other hand, when it is determined based on the task information that the target electrical equipment includes a drive motor, the operation mode corresponding to the drive motor is determined to be alternating acceleration and deceleration, so that the power consumption efficiency of the drive motor during operation can be improved; on the other hand, when it is determined based on the task information that the target electrical equipment includes a heating film of a battery, the operation mode corresponding to the heating film is determined to be heating on, so that the power consumption efficiency of the heating film during operation can be improved. In this way, the discharge efficiency of the battery can be further improved by improving the power consumption efficiency of the target electrical equipment, and the time spent on the development and testing of the whole vehicle can be reduced.

[0022] In some embodiments, each target electrical device is controlled to operate in accordance with a corresponding operating mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition, including: based on the operating mode corresponding to each target electrical device, controlling each target electrical device to operate to discharge the battery; in response to receiving a stop discharge signal, controlling each target electrical device to stop operating; the stop discharge signal is sent by the battery management system of the battery in response to detecting that the current state of the battery meets the target power condition.

[0023] In the above embodiment, based on the operation mode corresponding to each target power-consuming device, each target power-consuming device is controlled to operate so as to discharge the battery; in response to receiving a stop discharge signal, each target power-consuming device is controlled to stop operating; the stop discharge signal is sent by the battery management system of the battery in response to detecting that the current state of the battery meets the target power condition. In this way, the battery management system can control each target power-consuming device to stop operating by sending a stop discharge signal in a timely manner when it detects that the current state of the battery meets the target power condition, thereby improving the accuracy of battery discharge, reducing over-discharge, and further reducing the waste of test time and test resources caused by recharging after over-discharge.

[0024] In some embodiments, the above method further includes: obtaining discharge status information of the battery; the discharge status information includes at least one of the following: discharge amount, discharge duration, discharge current peak value, and load power consumption peak value.

[0025] In the above embodiment, by obtaining the discharge amount, discharge duration, discharge current peak value and / or load power consumption peak value during the battery discharge process, it is convenient to analyze and / or optimize the discharge process according to the discharge status information of the battery.

[0026] In some embodiments, the above method also includes: obtaining the remaining discharge time required for the battery to discharge from a current state to meet a target power condition; the remaining discharge time is determined based on a discharge current detected by the battery management system during the battery discharge process.

[0027] In the above embodiment, by obtaining the remaining discharge time required for the battery to discharge from the current state to meet the target power condition, it is convenient to analyze the discharge progress during the vehicle discharge process. In addition, based on the discharge current detected by the battery management system during the battery discharge process, the remaining discharge time can be determined more quickly and accurately.

[0028] The present application provides a vehicle testing device, comprising:

[0029] An acquisition module, used to acquire a target power condition corresponding to a first test task of the vehicle;

[0030] A determination module, configured to determine an operation mode corresponding to at least one target electrical device of the vehicle based on task information of a second test task of the vehicle; the task information includes a test condition and / or a function to be tested;

[0031] A control module, used to control each target power-consuming device to operate according to a corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition;

[0032] The execution module is used to execute the second test task when each target electrical device operates in a corresponding operation mode.

[0033] In the vehicle testing device of the embodiment of the present application, on the one hand, by controlling each target electrical equipment to operate according to the corresponding operating mode, the vehicle can be discharged at a relatively fast speed in situ; on the other hand, the operating mode of each target electrical equipment is determined according to the test conditions of the second test task and / or the function to be tested, and the second test task is performed simultaneously while the battery is discharging, so that the test time can be reused, the development and testing time of the whole vehicle can be reduced, the development and testing efficiency can be improved, and the reuse of test resources can be realized, resource waste can be reduced, and the development and testing cost of the vehicle can be reduced.

[0034] An embodiment of the present application provides a vehicle controller, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps in the above-mentioned vehicle testing method are implemented.

[0035] An embodiment of the present application provides a vehicle, comprising the above-mentioned vehicle controller.

[0036] An embodiment of the present application provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned vehicle testing method are implemented.

[0037] An embodiment of the present application provides a computer program product, including a computer program or instructions. When the computer program or instructions are executed by a processor, the steps in the above-mentioned vehicle testing method are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic diagram of the implementation process of a vehicle testing method provided in an embodiment of the present application Figure 1 ;

[0039] Figure 2 A schematic diagram of the implementation process of a vehicle testing method provided in an embodiment of the present application Figure 2 ;

[0040] Figure 3 A schematic diagram of the structure of a vehicle testing device provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of a hardware entity of a computer device in an embodiment of the present application. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0045] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "circumferential", "height direction", "first direction", and "second direction" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0050] With the development of clean energy, more and more devices use electric energy as driving energy, and then power batteries that can store more electric energy and can be charged and discharged repeatedly are developing rapidly, such as lithium-ion batteries. Among them, power batteries are not only used in energy storage power supply systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0051] In the embodiment of the present application, the battery may include a battery pack, and the battery pack may be made of battery cells and / or battery modules. A battery cell refers to a basic unit that can realize the mutual conversion of chemical energy and electrical energy, and can be used to make a battery module or a battery pack, so as to supply power to an electrical device. A battery cell may be a primary battery or a secondary battery, and a secondary battery refers to a battery cell that can be activated by charging the active material after the battery cell is discharged and continues to be used. The battery cell may be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, or a lead-acid battery, etc., and the embodiment of the present application does not limit this. The battery cell may be cylindrical, rectangular, or in other shapes.

[0052] The battery cell includes an electrode assembly and an electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode collector. The positive electrode collector not coated with the positive electrode active material layer protrudes from the positive electrode collector coated with the positive electrode active material layer. The positive electrode collector not coated with the positive electrode active material layer serves as the positive electrode tab. Taking lithium-ion batteries as an example, the material of the positive electrode collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode collector. The negative electrode collector not coated with the negative electrode active material layer protrudes from the negative electrode collector coated with the negative electrode active material layer. The negative electrode collector not coated with the negative electrode active material layer serves as the negative electrode tab. The negative electrode current collector can be made of copper, and the negative electrode active material can be carbon or silicon. In order to ensure that a large current can pass without melting, the positive electrode tabs are multiple and stacked together, and the negative electrode tabs are multiple and stacked together. The material of the separator can be PP (Polypropylene) or PE (Polyethylene).

[0053] With the development of new energy battery technology, new energy vehicles equipped with batteries have been widely used. In the development and testing process of new energy vehicles, since the function of the whole vehicle is greatly affected by the power of the battery, it is often necessary to use the battery reaching the corresponding SOC as a prerequisite for relevant functional tests. This leads to the need to continuously discharge the vehicle during the experiment. However, in related technologies, it is usually necessary to wait for the vehicle to be discharged and the corresponding tests to be completed before releasing the test vehicle for other tests, resulting in low efficiency in the development and testing process of the whole vehicle, and there is a waste of testing resources, resulting in high vehicle testing costs.

[0054] The embodiment of the present application provides a vehicle testing method, which can be executed by a computer device. During implementation, the computer device may include but is not limited to a vehicle control unit (VCU) of the vehicle, and / or a host computer for performing vehicle testing, etc. The host computer may include but is not limited to at least one of a laptop computer, a tablet computer, a desktop computer, a large-screen device, a server, a mobile device, etc.

[0055] Figure 1 A schematic diagram of the implementation process of a vehicle testing method provided in an embodiment of the present application Figure 1 ,like Figure 1 As shown, the vehicle testing method includes the following steps S101 to S104:

[0056] Step S101, obtaining a target power condition corresponding to a first test task of the vehicle.

[0057] Here, the first test task may include any suitable test task to be executed on the vehicle, with the vehicle's battery reaching a target power condition as a prerequisite, and the embodiment of the present application is not limited to this.

[0058] In some embodiments, the target power condition may include, but is not limited to, the battery power matches the target power, the battery voltage matches the target voltage, and / or the battery SOC matches the target SOC, etc. The target power, target voltage, and / or target SOC may be determined by those skilled in the art according to the task content corresponding to the first test task, and the embodiments of the present application do not limit this.

[0059] For example, in the electric control function of the vehicle, the vehicle controller often uses the remaining power of the vehicle battery as a judgment condition to issue different control instructions to the actuator. The first test task may include a test task for this type of electric control function, and the target power condition of the first test task may include the remaining power of the battery matching the target power. The electric control function may include but is not limited to at least one of a low power reminder function, a function of entering a low power mode, and a function of exiting a low power mode.

[0060] In some implementations, the target power condition corresponding to the first test task may be pre-configured by a tester. For example, the tester may configure a suitable target power condition through an Infotainment Head Unit (IHU) on the vehicle.

[0061] In some implementations, the target power condition corresponding to the first test task may be acquired from task configuration information of the first test task to be executed.

[0062] Step S102, based on the task information of the second test task of the vehicle, determining the operation mode corresponding to at least one target electrical device of the vehicle; the task information includes test conditions and / or functions to be tested.

[0063] Here, the second test task may include any suitable test task for the vehicle that can be executed during the process of discharging the battery of the vehicle. For example, the second test task may include but is not limited to at least one of a test task for the vehicle window defogger function at a target vehicle interior temperature, a test task for the vehicle interior heat dissipation function at a target vehicle interior temperature, a test task for the vehicle dehumidification function at a target vehicle interior humidity, a test task for the vehicle heat recovery function at a target speed of the drive motor, a test task for the first thermal management function of the drive motor, a test task for the second thermal management function of the battery heating film, and the like.

[0064] The task information of the second test task may include but is not limited to at least one of the test conditions and / or the functions to be tested of the second test task. The test conditions may include but are not limited to at least one of the target in-vehicle temperature, the target in-vehicle humidity, the target speed of the drive motor, etc.; the functions to be tested may include but are not limited to at least one of the window defog function, the in-vehicle heat dissipation function, the dehumidification function, the heat recovery function, the first thermal management function of the drive motor, the second thermal management function of the battery heating film, etc.

[0065] The target electric device may include one or more electric devices in the vehicle.

[0066] In some embodiments, the target electrical device includes at least one high-voltage electrical device in the vehicle. For example, the target electrical device may include but is not limited to at least one of an air-conditioning compressor, a drive motor, a heating film of a battery, a vehicle refrigerator, and the like.

[0067] In some embodiments, an operating mode that matches the test conditions and / or the functions to be tested of the second test task can be selected from the candidate operating modes supported by the target electrical equipment of the vehicle as the operating mode corresponding to the target electrical equipment.

[0068] For example, when the target electrical equipment includes an air-conditioning compressor, the operating modes supported by the air-conditioning compressor may include but are not limited to cooling mode, heating mode, air supply mode, dehumidification mode, alternating start of cooling mode and heating mode, alternating start and stop, etc. If the test conditions of the second test task include the target in-vehicle temperature, the corresponding operating mode of the air-conditioning compressor may include cooling mode, heating mode, or alternating start of cooling mode and heating mode, so that the in-vehicle temperature matches the target in-vehicle temperature.

[0069] For another example, when the target electrical equipment includes a drive motor, the operating modes supported by the drive motor may include but are not limited to continuous startup, alternating start and stop, alternating acceleration and deceleration, etc. If the test conditions of the second test task include the target speed of the drive motor, the corresponding operating mode of the drive motor may include continuous startup at the target speed to maintain the drive motor at the target speed; if the test function of the second test task includes the first thermal management function of the drive motor, the corresponding operating mode of the drive motor may include alternating acceleration and deceleration so that the heat generated by the operation of the drive motor reaches the trigger condition of the first thermal management function.

[0070] For another example, when the target electrical equipment includes a heating film of a battery, the operating modes supported by the heating film may include but are not limited to continuous heating, intermittent heating, etc. If the test conditions of the second test task include the target speed of the drive motor, the operating mode corresponding to the drive motor may include continuous starting at the target speed to maintain the drive motor at the target speed; if the test function of the second test task includes a second thermal management function of the heating film, the operating mode corresponding to the heating film may include continuous heating to make the heating temperature of the heating film reach the trigger condition of the second thermal management function.

[0071] It can be understood that during the discharge process, the operation of the drive motor can be idling operation.

[0072] Step S103, controlling each target electrical device to operate according to a corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition.

[0073] Here, the current state of the battery may include but is not limited to at least one of the current charge, current SOC, current voltage, etc. of the battery. The situation where the current state of the battery satisfies the target charge condition may include at least one of the following: the current charge of the battery matches the target charge, the voltage of the battery matches the target voltage, and / or the current SOC of the battery matches the target SOC.

[0074] In some embodiments, while each target electrical device is operating in a corresponding operating mode, the current state of the battery can be estimated, and a determination can be made as to whether the current state of the battery meets a target power condition. If it is determined that the current state of the battery does not meet the target power condition, each target electrical device can continue to be controlled to operate in a corresponding operating mode to continue discharging the battery. If it is determined that the current state of the battery has met the target power condition, each target electrical device can be controlled to stop operating to stop discharging the battery.

[0075] In some embodiments, the discharge current of the battery discharge process can be detected by the battery management system, and the current discharge capacity of the battery can be estimated based on the detected discharge current and discharge duration, and the current state of the battery can be determined based on the current discharge capacity of the battery and the initial state of charge of the battery before discharge.

[0076] In some embodiments, the power consumption of the target power device can be determined based on the power of the target power device in the corresponding operating mode and the operating time of the target power device, thereby determining the current state of the battery based on the power consumption of each target power device and the initial power state of the battery before discharge.

[0077] Step S104: executing the second test task while each target electrical device is operating in a corresponding operating mode.

[0078] In some embodiments, the task information of the second test task includes the test conditions of the second test task. During the operation of each target electrical device in accordance with the corresponding operation mode, if it is detected that the test conditions of the second test task are met, the second test task can be executed.

[0079] In some embodiments, the task information of the second test task includes the function to be tested of the second test task. During the operation of each target electrical equipment in the corresponding operation mode, the trigger status and / or trigger result of the function to be tested can be detected by executing the second test task.

[0080] In the vehicle testing method of the embodiment of the present application, first, the target power condition corresponding to the first test task of the vehicle is obtained; then, based on the task information of the second test task of the vehicle, the operation mode corresponding to at least one target power-consuming device of the vehicle is determined, and the task information includes test conditions and / or functions to be tested; finally, each target power-consuming device is controlled to operate according to the corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition, and the second test task is performed during the operation of each target power-consuming device according to the corresponding operation mode. In this way, on the one hand, by controlling each target power-consuming device to operate according to the corresponding operation mode, the vehicle can be discharged at a faster speed in situ; on the other hand, the operation mode of each target power-consuming device is determined according to the test conditions and / or functions to be tested of the second test task, and the second test task is performed simultaneously during the discharge of the battery, which can realize the reuse of test time, reduce the time consumption of development and testing of the whole vehicle, improve the efficiency of development and testing, and can realize the reuse of test resources, reduce resource waste, and reduce the development and testing cost of the vehicle.

[0081] In some embodiments, the task information includes test conditions, the test conditions include a target vehicle interior temperature, and the target electrical equipment includes an air conditioning compressor. Determining the operating mode corresponding to at least one target electrical equipment of the vehicle based on the task information of the second test task of the vehicle in the above step S102 may include the following step S111:

[0082] Step S111 : determining a first operating mode corresponding to the air-conditioning compressor based on the target in-vehicle temperature, so that the air-conditioning compressor operates in the first operating mode to adjust the in-vehicle temperature of the vehicle to the target in-vehicle temperature.

[0083] Here, the target in-vehicle temperature is a prerequisite for executing the second test task, that is, the target in-vehicle temperature is the in-vehicle temperature that the vehicle cabin needs to reach before executing the second test task. During implementation, the target in-vehicle temperature can be determined according to the second test task in an actual application scenario, and the embodiments of the present application are not limited to this.

[0084] In some embodiments, the first operating mode corresponding to the air-conditioning compressor can be determined based on the size relationship between the target in-car temperature and the current in-car temperature. For example, when the target in-car temperature is higher than the current in-car temperature, the first operating mode corresponding to the air-conditioning compressor can be determined to be the heating mode; wherein the heating mode can include continuous heating, or alternating start and stop in the heating mode, etc. For another example, when the target in-car temperature is lower than the current in-car temperature, the first operating mode corresponding to the air-conditioning compressor can be determined to be the cooling mode; wherein the cooling mode can include continuous cooling, or alternating start and stop in the cooling mode, etc. For another example, when the target in-car temperature is equal to the current in-car temperature, the first operating mode corresponding to the air-conditioning compressor can be determined to be the air supply mode, or the cooling mode and the heating mode are started alternately, etc.

[0085] In some embodiments, the first operating mode corresponding to the air-conditioning compressor can be determined based on the size relationship between the target in-vehicle temperature and the preset temperature threshold. The preset temperature threshold may include the lower limit of the adjustable temperature range corresponding to the heating mode of the air-conditioning compressor, and / or the upper limit of the adjustable temperature range corresponding to the cooling mode of the air-conditioning compressor. For example, when the target in-vehicle temperature is not lower than the lower limit of the adjustable temperature range corresponding to the heating mode of the air-conditioning compressor, the first operating mode corresponding to the air-conditioning compressor is determined to be the heating mode. For another example, when the target in-vehicle temperature is not higher than the upper limit of the adjustable temperature range corresponding to the cooling mode of the air-conditioning compressor, the first operating mode corresponding to the air-conditioning compressor is determined to be the cooling mode.

[0086] In the above embodiment, the first operating mode corresponding to the air-conditioning compressor is determined according to the target in-vehicle temperature of the second test task, so that the in-vehicle temperature of the vehicle is adjusted to the target in-vehicle temperature after the air-conditioning compressor operates in the first operating mode. In this way, suitable test conditions can be provided for the second test task during the vehicle discharge process, so that the test result of the second test task is more accurate.

[0087] In some embodiments, determining the first operating mode corresponding to the air-conditioning compressor based on the target in-vehicle temperature in step S111 may include one of the following steps S121 to S123:

[0088] Step S121: when the target vehicle interior temperature is lower than a first temperature threshold, determining that the first operating mode is a start-up cooling mode.

[0089] Step S122: when the target vehicle interior temperature is higher than or equal to the first temperature threshold and lower than the second temperature threshold, determining that the first operation mode is to start the cooling mode and the heating mode alternately.

[0090] Step S123: when the target vehicle interior temperature is higher than or equal to the second temperature threshold, determining that the first operation mode is a start-up heating mode.

[0091] In some embodiments, both the first temperature threshold and the second temperature threshold may be preset. For example, those skilled in the art may preset appropriate first temperature threshold and second temperature threshold according to actual conditions.

[0092] In some embodiments, the upper limit of the adjustable temperature range corresponding to the cooling mode of the air-conditioning compressor is lower than the lower limit of the adjustable temperature range corresponding to the heating mode of the air-conditioning compressor, the first temperature threshold is the upper limit of the adjustable temperature range corresponding to the cooling mode of the air-conditioning compressor, and the second temperature threshold is the lower limit of the adjustable temperature range corresponding to the heating mode of the air-conditioning compressor.

[0093] In some embodiments, the upper limit of the adjustable temperature range corresponding to the cooling mode of the air-conditioning compressor is higher than or equal to the lower limit of the adjustable temperature range corresponding to the heating mode of the air-conditioning compressor, the first temperature threshold is the lower limit of the adjustable temperature range corresponding to the heating mode of the air-conditioning compressor, and the second temperature threshold is the upper limit of the adjustable temperature range corresponding to the cooling mode of the air-conditioning compressor.

[0094] In the above embodiment, when the target in-vehicle temperature is lower than the first temperature threshold, by determining that the first operating mode is to start the cooling mode, the in-vehicle temperature can be quickly adjusted and maintained below the first temperature threshold; when the target in-vehicle temperature is higher than or equal to the first temperature threshold and lower than the second temperature threshold, by determining that the first operating mode is to start the cooling mode and the heating mode alternately, the in-vehicle temperature can be adjusted and maintained between the first temperature threshold and the second temperature threshold; when the target in-vehicle temperature is higher than or equal to the second temperature threshold, by determining that the first operating mode is to start the heating mode, the in-vehicle temperature can be quickly adjusted and maintained above the second temperature threshold. In this way, an adaptive in-vehicle temperature can be provided for the second test task quickly and accurately, thereby improving the test accuracy and efficiency of the second test task.

[0095] In some embodiments, determining the operation mode corresponding to at least one target electrical device of the vehicle based on the task information of the second test task of the vehicle in the above step S102 may include the following steps S131 to S132:

[0096] Step S131 : determining at least one target electrical device from electrical devices of the vehicle based on the task information of the second test task.

[0097] In some embodiments, the task information of the second test task includes a test condition, and at least one target electrical device can be determined from the electrical devices of the vehicle based on the test condition of the second test task. For example, when the test condition of the second test task includes the target in-vehicle temperature, it can be determined that the target electrical device of the vehicle includes the air-conditioning compressor. For another example, when the test condition of the second test task includes the target speed of the drive motor, it can be determined that the target electrical device of the vehicle includes the drive motor.

[0098] In some embodiments, the task information of the second test task includes a function to be tested, and at least one target electrical device can be determined from various electrical devices of the vehicle based on the function to be tested of the second test task. For example, when the function to be tested of the second test task includes an in-vehicle heat dissipation function, it can be determined that the target electrical device of the vehicle includes an air-conditioning compressor. For another example, when the function to be tested of the second test task includes a heat recovery function and / or a first thermal management function of a drive motor, it can be determined that the target electrical device of the vehicle includes a drive motor. For another example, when the function to be tested of the second test task includes a second thermal management function of a heating film of a battery, it can be determined that the target electrical device of the vehicle includes a heating film.

[0099] Step S132: determining an operation mode corresponding to at least one target electrical device based on the task information.

[0100] Here, the implementation process of step S132 may refer to the implementation of the aforementioned step S102.

[0101] In the above embodiment, based on the task information of the second test task, at least one target electrical device is determined from the various electrical devices of the vehicle, and the operating mode corresponding to the at least one target electrical device is determined according to the task information. In this way, since the target electrical device to be operated for discharging and the operating mode corresponding to each target electrical device are determined according to the task information of the second test task, the target electrical device and the corresponding operating mode can be selected more flexibly to better adapt to the test conditions and / or the functions to be tested of the second test task.

[0102] In some embodiments, the task information includes the function to be tested. The above step S131, based on the task information of the second test task, determines at least one target electrical device from the electrical devices of the vehicle, comprises at least one of the following steps S141 to S142:

[0103] Step S141 : when the function to be tested includes a first thermal management function of a drive motor of a vehicle, the drive motor is determined as a target electrical device.

[0104] The first thermal management function may include a function of effectively controlling and managing the heat energy generated by the drive motor to prevent the drive motor from being damaged due to overheating or causing a drive system failure.

[0105] In the case where the function to be tested includes the first thermal management function of the vehicle's drive motor, the drive motor can be determined as the target electrical equipment, so that in the process of controlling the drive motor to operate in the corresponding operating mode, on the one hand, the battery can be discharged through the operation of the drive motor, and on the other hand, since the operation of the drive motor will generate heat energy, the first thermal management function of the drive motor can be tested by utilizing the operating state of the drive motor during the discharge of the battery, thereby completing the second test task.

[0106] Step S142 : when the function to be tested includes a second thermal management function of a battery of the vehicle, a heating film of the battery is determined as a target electrical device.

[0107] The second thermal management function may include controlling and managing the heat energy generated by the heating film of the battery in the process of heating the battery cell to prevent the battery cell from being damaged due to overheating or causing battery system failure.

[0108] When the function to be tested includes the second thermal management function of the vehicle's battery, the heating film of the battery can be determined as the target electrical equipment, so that in the process of controlling the heating film of the battery to operate according to the corresponding operating mode, on the one hand, the battery can be discharged through the operation of the heating film, and on the other hand, since the operation of the heating film will generate heat energy, the second thermal management function of the battery can be tested by utilizing the operating state of the heating film during the discharge process of the battery, thereby completing the second test task.

[0109] In the above embodiment, when the function to be tested includes the first thermal management function of the vehicle's drive motor, the drive motor is determined as the target electrical device; when the function to be tested includes the second thermal management function of the vehicle's battery, the battery's heating film is determined as the target electrical device. In this way, according to the function to be tested of the second test task, a suitable target electrical device can be selected to discharge the battery, thereby improving the reuse rate of test resources and further reducing the vehicle's development and testing costs.

[0110] In some embodiments, determining the operation mode corresponding to at least one target electrical device of the vehicle based on the task information of the second test task of the vehicle in the above step S102 may include at least one of the following steps S151 to S153:

[0111] Step S151, when it is determined based on the task information that the target electrical equipment includes an air-conditioning compressor, it is determined that the operation mode corresponding to the air-conditioning compressor is alternating start and stop, and the maximum working gear is used during the startup process.

[0112] In some embodiments, alternating start and stop of the air-conditioning compressor may include: starting the heating mode at the maximum working gear, after the heating mode is started for a first time period, turning off the heating mode and starting the heating mode again, after the heating mode is started for a first time period, turning off the heating mode again, and repeating this process.

[0113] In some embodiments, the alternating start and stop of the air-conditioning compressor may include: starting the cooling mode at the maximum working gear, turning off the cooling mode and starting the cooling mode again after the cooling mode is started for a second time, turning off the cooling mode again after the cooling mode is started for a second time, and repeating this process.

[0114] In some embodiments, alternating start and stop of the air-conditioning compressor may include: starting the heating mode at the maximum working gear, after the heating mode is started for a third time, turning off the heating mode and starting the cooling mode, after the cooling mode is started for a fourth time, turning off the cooling mode and starting the heating mode, and repeating this process.

[0115] It should be noted that the above-mentioned first duration, second duration, third duration and fourth duration can all be appropriate values ​​set according to actual application scenarios, and the embodiments of the present application are not limited to this.

[0116] Step S152: when it is determined based on the task information that the target electrical equipment includes a drive motor, determining that the operation mode corresponding to the drive motor is alternating acceleration and deceleration.

[0117] In some embodiments, the alternating acceleration and deceleration of the drive motor may include: controlling the drive motor to accelerate to a maximum speed while idling, then controlling the drive motor to decelerate to a speed lower than a first speed threshold, and then controlling the drive motor to accelerate to the maximum speed again, and repeating this process. The first speed threshold may be a suitable value set according to an actual application scenario, and the embodiments of the present application are not limited thereto.

[0118] In some embodiments, the alternating acceleration and deceleration of the drive motor may include: controlling the drive motor to accelerate to a maximum speed at maximum power, then controlling the drive motor to decelerate to below a first speed threshold, and then controlling the drive motor to accelerate to a maximum speed at maximum power again, and repeating this process.

[0119] Step S153, when it is determined based on the task information that the target electrical equipment includes a heating film of a battery, determining that the operation mode corresponding to the heating film is to start heating.

[0120] In the above embodiments, on the one hand, when it is determined based on the task information that the target electrical equipment includes an air-conditioning compressor, the operation mode corresponding to the air-conditioning compressor is determined to be alternating start and stop, and the maximum working gear is used during the startup process, so that the power consumption efficiency of the air-conditioning compressor during operation can be improved; on the other hand, when it is determined based on the task information that the target electrical equipment includes a drive motor, the operation mode corresponding to the drive motor is determined to be alternating acceleration and deceleration, so that the power consumption efficiency of the drive motor during operation can be improved; on the other hand, when it is determined based on the task information that the target electrical equipment includes a heating film of a battery, the operation mode corresponding to the heating film is determined to be heating on, so that the power consumption efficiency of the heating film during operation can be improved. In this way, the discharge efficiency of the battery can be further improved by improving the power consumption efficiency of the target electrical equipment, and the time spent on the development and testing of the whole vehicle can be reduced.

[0121] In some embodiments, controlling each target electrical device to operate according to a corresponding operation mode in step S103 to discharge the battery of the vehicle until the current state of the battery meets the target power condition may include the following steps S161 to S162:

[0122] Step S161 : Based on the operation mode corresponding to each target electric device, control each target electric device to operate so as to discharge the battery.

[0123] Step S162, in response to receiving a stop discharge signal, controlling each target electrical device to stop operating; the stop discharge signal is sent by the battery management system of the battery in response to detecting that the current state of the battery meets the target power condition.

[0124] Here, the battery management system can detect the current state of the battery in any suitable manner, and when it detects that the current state of the battery meets the target power condition, it sends a stop discharge signal to the computer device that executes the vehicle testing method (such as VCU, or a host computer used for vehicle testing, etc.). After receiving the stop discharge signal, the computer device can control each target electrical device to stop running to stop discharging the battery.

[0125] In the above embodiment, based on the operation mode corresponding to each target power-consuming device, each target power-consuming device is controlled to operate so as to discharge the battery; in response to receiving a stop discharge signal, each target power-consuming device is controlled to stop operating; the stop discharge signal is sent by the battery management system of the battery in response to detecting that the current state of the battery meets the target power condition. In this way, the battery management system can control each target power-consuming device to stop operating by sending a stop discharge signal in a timely manner when it detects that the current state of the battery meets the target power condition, thereby improving the accuracy of battery discharge, reducing over-discharge, and further reducing the waste of test time and test resources caused by recharging after over-discharge.

[0126] In some embodiments, the vehicle testing method may further include the following step S171:

[0127] Step S171, obtaining the discharge status information of the battery; the discharge status information includes at least one of the following: discharge amount, discharge duration, discharge current peak value, and load power consumption peak value.

[0128] In the above embodiment, by obtaining the discharge amount, discharge duration, discharge current peak value and / or load power consumption peak value during the battery discharge process, it is convenient to analyze and / or optimize the discharge process according to the discharge status information of the battery.

[0129] In some embodiments, after the VCU or a host computer used for vehicle testing obtains the discharge status information of the battery, the discharge status information may be sent to the IHU, and the IHU may display the discharge status information. In this way, the tester can intuitively observe the discharge status of the battery according to the discharge status information displayed by the IHU, which facilitates the subsequent analysis and / or optimization of the discharge process according to the discharge status information of the battery.

[0130] In some embodiments, the vehicle testing method may further include the following step S181:

[0131] Step S181, obtaining the remaining discharge time required for the battery to discharge from the current state to meet the target power condition; the remaining discharge time is determined based on the discharge current detected by the battery management system during the battery discharge process.

[0132] In the above embodiment, by obtaining the remaining discharge time required for the battery to discharge from the current state to meet the target power condition, it is convenient to analyze the discharge progress during the vehicle discharge process. In addition, based on the discharge current detected by the battery management system during the battery discharge process, the remaining discharge time can be determined more quickly and accurately.

[0133] In some embodiments, after the VCU or a host computer used for vehicle testing obtains the remaining discharge time required for the battery to discharge from the current state to meet the target power condition, the remaining discharge time can be sent to the IHU, and the IHU can display the remaining discharge time. In this way, the tester can quickly and intuitively know the remaining discharge time of the battery from the IHU, which is convenient for subsequent planning of test tasks based on the remaining discharge time.

[0134] The following describes the application of the vehicle testing method provided in the embodiments of the present application in actual scenarios.

[0135] During the development and testing of electric vehicles, since the functions of the whole vehicle are greatly affected by the power of the battery, it is often necessary to use the battery reaching the corresponding SOC as a prerequisite for relevant functional tests. This leads to the need to continuously discharge the vehicle during the experiment. At the same time, due to the constraints of factors at the development and testing site, the vehicle may not be able to use the inverter to discharge directly, or there may be no charging piles with plug-in discharge function available on site. In this case, the vehicle can be discharged while driving or the vehicle can be left stationary with the air conditioner turned on for heating. However, driving discharge requires manpower to drive, and the test vehicle cannot perform other tests during driving discharge, resulting in the occupation of manpower and test vehicle resources, or there may be a situation where the vehicle cannot be driven on site. If the discharge is performed while the air conditioner is turned on for heating, on the one hand, other tests need to be performed after the discharge is completed, and the discharge time is too long, which will lead to the problem of low test efficiency. On the other hand, it is not suitable to turn on the air conditioner to accelerate the discharge under some high temperature conditions. In addition, both driving discharge and vehicle stationary air conditioning heating do not accurately control the discharge amount, which may lead to excessive discharge and deviation in the construction of experimental conditions. If over-discharge occurs, it will need to be charged again or even discharged again, resulting in a serious waste of test resources.

[0136] The embodiment of the present application provides a vehicle testing method. On the one hand, the VCU automatically controls various high-power electrical appliances of the vehicle (corresponding to the target electrical appliances in the aforementioned embodiment) to work in a specific manner to accelerate power consumption, so that the vehicle can be discharged at a relatively fast speed in situ, thereby improving the problem that the test vehicle cannot perform other tests during the driving discharge process, resulting in waste of test resources. In addition, since the high-power electrical appliances brought by the vehicle are used for discharge, there is no need to add external test tools, thereby reducing the dependence on external test tools. On the other hand, the battery management system (Battery The Battery Management System (BMS) detects the discharge progress in real time and can stop discharging when the SOC of the battery reaches the set target SOC, thereby reducing the waste of test resources caused by excessive discharge and reducing the problem of low test efficiency caused by excessive discharge. On the other hand, during the startup of high-power electrical appliances, if the started high-power electrical appliances include a heating film of a drive motor and / or a battery, the temperature of the drive motor and / or the battery will increase, so the thermal management test of the drive motor and / or the battery can be performed simultaneously during the discharge process. Compared with the solution of performing a separate thermal management function test in the related art, the start-up of the heating resistor wire in the drive motor and / or the heating film can be automatically controlled, and there is no need to wait for the drive motor and / or the battery to heat up separately, thereby reducing the development and testing time of the entire vehicle, improving the development and testing efficiency, and being able to realize the reuse of test resources, reducing resource waste, and reducing the development and testing cost of the vehicle.

[0137] The vehicle testing method provided in the embodiment of the present application is suitable for the test phase of electric vehicles and provides an easy-to-use discharge function for testers. In the early stage of testing the vehicle, the target SOC required for the first test task can be set, and the whole vehicle automatically drives each target electrical device to discharge with higher efficiency, and stops the operation of each target electrical device after the battery reaches the target SOC. Thus, the test vehicle can automatically complete the construction of the test conditions for the first test task at a relatively fast speed. In addition, it can also be set whether to automatically test the thermal management function of the drive motor and / or battery during the discharge process.

[0138] Figure 2 A schematic diagram of the implementation process of a vehicle testing method provided in an embodiment of the present application Figure 2 ,like Figure 2 As shown, the vehicle testing method includes the following steps S201 to S213:

[0139] Step S201, the user sets the target SOC using the IHU;

[0140] The user uses the IHU to set the target SOC, and the IHU sends the set target SOC and a discharge request signal to the VCU via the Controller Area Network (CAN).

[0141] Step S202, the VCU determines whether the vehicle is powered on at high voltage;

[0142] If so, go to step S203; if not, go to step S204.

[0143] Step S203, the BMS determines whether the target SOC is lower than the current SOC of the battery;

[0144] If not, go to step S204; if so, go to step S205.

[0145] Step S204, VCU does not allow discharge;

[0146] Step S205, the BMS sends a discharge indication signal to the VCU;

[0147] For example, after the VCU receives the discharge request signal from the IHU, it can determine whether the vehicle is powered on at high voltage. If the vehicle is powered on at high voltage, the target SOC is sent to the BMS for judgment; if the vehicle is not powered on at high voltage, discharge is not allowed.

[0148] In some embodiments, if the vehicle is not powered on at high voltage, the VCU may also feed back a power-on prompt signal to the IHU. After receiving the power-on prompt signal, the IHU outputs a power-on prompt message to prompt the user to first power on at high voltage and then discharge.

[0149] After receiving the target SOC from the VCU, the BMS compares the target SOC with the current SOC of the battery. If the target SOC is lower than the current SOC of the battery, the BMS sends a discharge indication signal to the VCU to allow discharge; if the target SOC is not lower than the current SOC of the battery, the BMS sends a signal to the VCU not to allow discharge. In this way, the vehicle can be prevented from over-discharging.

[0150] Step S206, the VCU controls each target electrical device to operate so as to discharge the battery;

[0151] After receiving the discharge instruction signal, the VCU can discharge the battery by controlling the operation of each target electrical device.

[0152] In some embodiments, step S206 may include at least one of the following: the VCU starts the motor controller to control the drive motor to idle and discharge; the VCU starts the air-conditioning compressor to control the air-conditioning compressor to heat and discharge; the VCU starts each heating resistor to heat and discharge.

[0153] The heating resistors activated by the VCU may include, but are not limited to, heating resistors in a heating film of a battery, and / or heating resistors used for defogger or heating of rearview mirrors, etc.

[0154] In some implementations, after receiving the discharge indication signal, the VCU starts to drive each target electrical device to work in a specific manner to increase the discharge power:

[0155] (1) After driving the air-conditioning compressor to start the heating mode for a certain period of time, the heating mode is turned off and the cooling mode is started; after the cooling mode is started for a certain period of time, the cooling mode is turned off again and the heating mode is started; the air-conditioning compressor is started repeatedly in this way to increase power consumption;

[0156] (2) The drive motor controller controls the drive motor to idle to the maximum speed, then slowly reduce the speed, and then increase the speed at the highest power. In this way, the power consumption is increased by controlling the drive motor to repeatedly accelerate and decelerate.

[0157] (3) Drive each heating resistor to start the heating mode.

[0158] During the discharge process, when the heating temperature of the heating resistor reaches the thermal management threshold, the thermal management system can automatically turn on the cooling function (corresponding to the second thermal management function in the aforementioned embodiment) according to the existing thermal management strategy. If it is detected that the cooling function is turned on normally, it is judged that the basic thermal management test (corresponding to the second test task in the aforementioned embodiment) has passed.

[0159] Step S207, the BMS detects the discharge current in real time through the current sensor and calculates the remaining discharge time;

[0160] Here, the BMS can detect the discharge current in real time through the current sensor.

[0161] Step S208, the IHU displays the remaining discharge time;

[0162] Here, the BMS may send the remaining discharge time calculated in real time to the VCU. After receiving the remaining discharge time, the VCU sends the remaining discharge time to the IHU for display by the IHU.

[0163] Step S209, during the discharge process, the BMS detects whether the current SOC reaches the target SOC;

[0164] If so, go to step S210; if not, go to step S205.

[0165] In some implementations, during the discharge process, the VCU may periodically send the discharge status information of the battery to the BMS.

[0166] Step S210, the BMS sends a discharge stop signal to the VCU;

[0167] Step S211, the VCU stops the power supply to each target electrical device;

[0168] Step S212, VCU sends a discharge completion signal to IHU;

[0169] After receiving the stop discharge signal, the VCU can stop the operation of each target electrical device by stopping the power supply to each target electrical device, thereby stopping the discharge of the battery and sending a discharge completion signal to the IHU.

[0170] Step S213, the IHU displays discharge completion information.

[0171] After receiving the discharge completion signal, the IHU may display discharge completion information on the display interface, and the discharge completion information may indicate that the discharge has been completed.

[0172] In some embodiments, the BMS also feeds back the test data of the thermal management test to the VCU during the test, for example, the temperature at which the cooling function is turned on, the time at which the cooling function is turned on, the temperature at which the cooling function is stopped, the time at which the cooling function is stopped, the temperature at which the heating function is started, the time at which the heating function is started, the temperature at which the heating function is stopped, and / or the time at which the heating function is stopped, etc. Other test-related controllers may also send corresponding test data to the VCU. The VCU may send the received test data to the IHU for display.

[0173] In some embodiments, the user can use the IHU to set the target SOC for discharge. In addition, the user can use the IHU to configure the test of the thermal management function. For example, when the resistance wire is heated to a certain temperature during the discharge process, the vehicle can normally jump to the cooling function according to the thermal management strategy, thereby realizing the test of the thermal management function.

[0174] When conducting a vehicle test, the battery SOC reaching the target SOC and / or the battery's minimum cell voltage or maximum cell voltage reaching the target voltage will be a prerequisite. Therefore, in some embodiments, the setting items on the IHU can add a target voltage with the minimum cell voltage or the maximum cell voltage as the judgment logic, so that the target SOC in the above embodiment can be replaced by the target voltage, and the comparison logic of the current SOC of the battery and the target SOC in the above embodiment can be replaced by the comparison logic of the current voltage of the battery and the target voltage.

[0175] In some embodiments, body control logic may be added during the process of controlling the operation of the target electrical equipment, such as automatically driving the body control module (BCM) to control the opening of the windows during discharge, or controlling the air-conditioning outlet to stop blowing air into the vehicle, and transporting the hot air to the outside of the vehicle through the air duct, to prevent the hot air blown out by the air conditioner from raising the temperature inside the vehicle too high.

[0176] The present application embodiment provides a vehicle testing device, such as Figure 3 As shown, the vehicle testing device 300 includes an acquisition module 310, a determination module 320, a control module 330 and an execution module 340, wherein:

[0177] An acquisition module 310 is used to acquire a target power condition corresponding to a first test task of the vehicle;

[0178] A determination module 320 is used to determine an operation mode corresponding to at least one target electrical device of the vehicle based on task information of a second test task of the vehicle; the task information includes a test condition and / or a function to be tested;

[0179] The control module 330 is used to control each target power-consuming device to operate according to a corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition;

[0180] The execution module 340 is used to execute the second test task when each target electrical device operates in a corresponding operation mode.

[0181] In the vehicle testing device of the embodiment of the present application, on the one hand, by controlling each target electrical equipment to operate according to the corresponding operating mode, the vehicle can be discharged at a relatively fast speed in situ; on the other hand, the operating mode of each target electrical equipment is determined according to the test conditions of the second test task and / or the function to be tested, and the second test task is performed simultaneously while the battery is discharging, so that the test time can be reused, the development and testing time of the whole vehicle can be reduced, the development and testing efficiency can be improved, and the reuse of test resources can be realized, resource waste can be reduced, and the development and testing cost of the vehicle can be reduced.

[0182] In some embodiments, the task information includes test conditions, the test conditions include a target in-vehicle temperature, and the target electrical equipment includes an air-conditioning compressor; the determination module is also used to: based on the target in-vehicle temperature, determine a first operating mode corresponding to the air-conditioning compressor, so that the air-conditioning compressor adjusts the vehicle's in-vehicle temperature to the target in-vehicle temperature after operating in the first operating mode.

[0183] In some embodiments, the determination module is also used for one of the following: when the target temperature inside the vehicle is lower than a first temperature threshold, determining that the first operating mode is to start the cooling mode; when the target temperature inside the vehicle is higher than or equal to the first temperature threshold and lower than the second temperature threshold, determining that the first operating mode is to alternately start the cooling mode and the heating mode; when the target temperature inside the vehicle is higher than or equal to the second temperature threshold, determining that the first operating mode is to start the heating mode.

[0184] In some embodiments, the determination module is further used to: determine at least one target electrical device from various electrical devices of the vehicle based on task information of the second test task; and determine the operating mode corresponding to the at least one target electrical device based on the task information.

[0185] In some embodiments, the task information includes the function to be tested; the determination module is also used for at least one of the following: when the function to be tested includes a first thermal management function of a drive motor of the vehicle, the drive motor is determined as the target electrical device; when the function to be tested includes a second thermal management function of a battery of the vehicle, the heating film of the battery is determined as the target electrical device.

[0186] In some embodiments, the determination module is also used for at least one of the following: when it is determined based on the task information that the target electrical equipment includes an air-conditioning compressor, determining that the operating mode corresponding to the air-conditioning compressor is alternating start and stop, and the maximum working gear is used during the startup process; when it is determined based on the task information that the target electrical equipment includes a drive motor, determining that the operating mode corresponding to the drive motor is alternating acceleration and deceleration; when it is determined based on the task information that the target electrical equipment includes a heating film of a battery, determining that the operating mode corresponding to the heating film is to turn on heating.

[0187] In some embodiments, the control module is also used to: control the operation of each target electrical device to discharge the battery based on the operating mode corresponding to each target electrical device; and control each target electrical device to stop operating in response to receiving a stop discharge signal; the stop discharge signal is sent by the battery management system of the battery in response to detecting that the current state of the battery meets the target power condition.

[0188] The description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. In some embodiments, the functions or modules included in the device provided in the embodiment of the present application can be used to execute the method described in the above method embodiment. For technical details not disclosed in the device embodiment of the present application, please refer to the description of the method embodiment of the present application for understanding.

[0189] An embodiment of the present application provides a vehicle controller, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, the steps in the above-mentioned vehicle testing method are implemented.

[0190] An embodiment of the present application provides a vehicle, comprising the above-mentioned vehicle controller.

[0191] It should be noted that in the embodiments of the present application, if the above method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application can be essentially or partly reflected in the form of a software product that contributes to the relevant technology. The software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods of each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a disk or an optical disk. In this way, the embodiments of the present application are not limited to any specific hardware, software or firmware, or any combination of hardware, software, and firmware.

[0192] An embodiment of the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, some or all of the steps in the above-mentioned vehicle testing method are implemented.

[0193] The embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, some or all of the steps in the above vehicle testing method are implemented. The computer-readable storage medium can be transient or non-transient.

[0194] An embodiment of the present application provides a computer program, including a computer-readable code. When the computer-readable code is run in a computer device, a processor in the computer device executes some or all of the steps for implementing the above method.

[0195] The embodiment of the present application provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and when the computer program is read and executed by a computer, some or all of the steps in the above method are implemented. The computer program product can be implemented in hardware, software, or a combination thereof. In some embodiments, the computer program product is specifically embodied as a computer storage medium, and in other embodiments, the computer program product is specifically embodied as a software product, such as a software development kit (SDK), etc.

[0196] An embodiment of the present application provides a computer program product, including a computer program or instructions. When the computer program or instructions are executed by a processor, some or all of the steps in the above-mentioned vehicle testing method are implemented.

[0197] It should be noted here that the description of the various embodiments above tends to emphasize the differences between the various embodiments, and the same or similar aspects can be referenced to each other. The description of the above device, storage medium, computer program and computer program product embodiments is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the embodiments of the device, storage medium, computer program and computer program product of this application, please refer to the description of the method embodiment of this application for understanding.

[0198] It should be noted that Figure 4 A schematic diagram of a hardware entity of a computer device in an embodiment of the present application is shown in FIG. Figure 4 As shown, the hardware entity of the computer device 400 includes: a processor 401, a communication interface 402 and a memory 403, wherein: the processor 401 generally controls the overall operation of the computer device 400. The communication interface 402 can enable the computer device to communicate with other terminals or servers through a network. The memory 403 is configured to store instructions and applications executable by the processor 401, and can also cache data to be processed or processed by the processor 401 and each module in the computer device 400 (for example, image data, audio data, voice communication data and video communication data), which can be implemented by flash memory (FLASH) or random access memory (Random Access Memory, RAM). Data transmission can be carried out between the processor 401, the communication interface 402 and the memory 403 through the bus 404.

[0199] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the serial number of each step / process mentioned above does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The serial numbers of the embodiments of the present application mentioned above are for description only and do not represent the advantages and disadvantages of the embodiments.

[0200] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0201] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0202] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, the functional units in the embodiments of the present application may be all integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0203] A person skilled in the art can understand that: all or part of the steps of implementing the above method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, read-only memories (ROM), magnetic disks or optical disks.

[0204] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can essentially or in other words, the part that contributes to the relevant technology can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for a computer device (which can be a vehicle controller, a personal computer, a server, or a network device, etc.) to execute all or part of the methods of each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0205] The above are only exemplary embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A vehicle testing method, characterized in that: include: Obtaining a target power condition corresponding to a first test task of the vehicle; The first test task includes a test task to be executed on the vehicle, with the battery of the vehicle reaching the target power condition as a precondition; Determining an operation mode corresponding to at least one target electrical device of the vehicle based on task information of a second test task of the vehicle; the task information includes test conditions and / or functions to be tested; Controlling each of the target electrical devices to operate in a corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition; The second test task is performed while each of the target electrical devices is operating in a corresponding operating mode.

2. The vehicle testing method according to claim 1, characterized in that: The task information includes test conditions, the test conditions include a target in-vehicle temperature, and the target electrical equipment includes an air-conditioning compressor; The determining, based on the task information of the second test task of the vehicle, an operation mode corresponding to at least one target electrical device of the vehicle includes: Based on the target in-vehicle temperature, a first operating mode corresponding to the air-conditioning compressor is determined, so that the in-vehicle temperature of the vehicle is adjusted to the target in-vehicle temperature after the air-conditioning compressor operates according to the first operating mode.

3. The vehicle testing method according to claim 2, characterized in that: The determining, based on the target in-vehicle temperature, a first operating mode corresponding to the air-conditioning compressor includes one of the following: When the target vehicle interior temperature is lower than a first temperature threshold, determining that the first operation mode is a start-up cooling mode; When the target vehicle interior temperature is higher than or equal to the first temperature threshold and lower than the second temperature threshold, determining that the first operation mode is to start the cooling mode and the heating mode alternately; When the target vehicle interior temperature is higher than or equal to the second temperature threshold, the first operating mode is determined to be a start-up heating mode.

4. The vehicle testing method according to claim 1, characterized in that: The determining, based on the task information of the second test task of the vehicle, an operation mode corresponding to at least one target electrical device of the vehicle includes: Based on the task information of the second test task, determining at least one target electrical device from electrical devices of the vehicle; Based on the task information, an operation mode corresponding to at least one of the target electrical devices is determined.

5. The vehicle testing method according to claim 4, characterized in that: The task information includes the function to be tested; The determining, based on the task information of the second test task, at least one of the target electrical devices from the electrical devices of the vehicle comprises at least one of the following: In a case where the function to be tested includes a first thermal management function of a drive motor of the vehicle, determining the drive motor as the target electrical device; In a case where the function to be tested includes a second thermal management function of a battery of the vehicle, a heating film of the battery is determined as the target electrical device.

6. The vehicle testing method according to claim 1, characterized in that: The determining, based on the task information of the second test task of the vehicle, an operation mode corresponding to at least one target electrical device of the vehicle comprises at least one of the following: In the case where it is determined based on the task information that the target electrical equipment includes an air-conditioning compressor, determining that the operation mode corresponding to the air-conditioning compressor is alternating start and stop, and that the maximum working gear is used during the startup process; In a case where it is determined based on the task information that the target electrical equipment includes a drive motor, determining that an operation mode corresponding to the drive motor is alternating acceleration and deceleration; In a case where it is determined based on the task information that the target electrical device includes a heating film of the battery, it is determined that the operation mode corresponding to the heating film is to start heating.

7. The vehicle testing method according to any one of claims 1 to 6, characterized in that: The controlling each of the target electrical devices to operate in a corresponding operation mode to discharge the battery of the vehicle until the current state of the battery meets the target power condition includes: Based on the operation mode corresponding to each of the target electrical devices, controlling the operation of each of the target electrical devices to discharge the battery; In response to receiving a stop discharge signal, each of the target electrical devices is controlled to stop running; the stop discharge signal is sent by the battery management system of the battery in response to detecting that the current state of the battery meets the target power condition.

8. A vehicle testing device, characterized in that: include: An acquisition module, used to acquire a target power condition corresponding to a first test task of the vehicle; The first test task includes a test task to be executed on the vehicle, with the battery of the vehicle reaching the target power condition as a precondition; A determination module, configured to determine an operation mode corresponding to at least one target electrical device of the vehicle based on task information of a second test task of the vehicle; the task information includes a test condition and / or a function to be tested; A control module, used to control each of the target electrical devices to operate according to a corresponding operation mode, so as to discharge the battery of the vehicle until the current state of the battery meets the target power condition; An execution module is used to execute the second test task when each of the target electrical devices is operating in a corresponding operation mode.

9. A vehicle controller, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor executes the program, the steps in the method according to any one of claims 1 to 7 are implemented.

10. A vehicle, characterized in that: Including the vehicle controller as claimed in claim 9.

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