Vehicle air conditioning detection method and device, electronic equipment and storage medium

Abstract

This invention relates to the field of vehicle technology, and discloses a vehicle air conditioning testing method, device, electronic device, and storage medium. The method includes: responding to a successful self-test of the vehicle's thermal management system without faults, reading the current ambient temperature value and determining whether the current ambient temperature value meets an extreme value judgment condition; when the current ambient temperature value meets the extreme value judgment condition, determining whether the current ambient temperature value meets a simulated injection condition; when the current ambient temperature value meets the simulated injection condition, at least performing a simulated injection operation and then starting the air conditioning cooling function, subsequently reading the air conditioning operating mode request and determining whether the air conditioning operating mode request is a valid cooling request; when the air conditioning operating mode request is a valid cooling request, at least delaying the reading of the compressor's actual speed, and at least when the compressor's actual speed meets a preset speed condition, determining that the vehicle air conditioning test is qualified. This invention can achieve automated testing of the driver's cab air conditioning cooling function in low-temperature environments.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method, apparatus, electronic device, and storage medium for detecting vehicle air conditioning. Background Technology

[0002] With rapid economic development and continuous innovation in automobile manufacturing technology, global automobile production and quality have increased significantly. my country's automobile industry has experienced a process of high-speed growth, explosive growth, and then steady growth under the new normal. It is currently in a stage of steady development and growth, and automobiles have become an indispensable means of transportation for most Chinese families.

[0003] However, with the increasing popularity of automobiles in my country, the improvement of material and cultural standards, the diversification of lifestyles, and the general trend of consumption upgrading and intensified competition in the automobile manufacturing industry, the function of automobiles as a means of transportation can no longer meet the needs of users. People's demands for automobiles have gradually changed, and they have higher requirements for the riding environment. Among them, a high-quality automobile lifestyle has become one of the new pursuits of people, and one of the key factors in creating a high-quality automobile lifestyle is the comfort of the automobile.

[0004] Since most cars maintain interior thermal comfort by adjusting the air conditioning system, it has become an essential vehicle feature, capable of controlling the cabin temperature in both summer and winter. Therefore, the proper functioning of the air conditioning system is crucial to the vehicle's thermal comfort. Consequently, the air conditioning system must be tested before the vehicle leaves the factory to ensure it functions correctly.

[0005] In related technologies, the testing of automotive air conditioning functions mainly relies on manual inspection, that is, visually or by touch to confirm whether the cooling, heating, and airflow modes are normal. However, manually checking the air conditioning functions is not only time-consuming and inefficient, but also because the cooling and heating effects of the air conditioning are greatly affected by human subjective factors, the standards for manual judgment cannot be quantified, thus the accuracy of the test results cannot be guaranteed.

[0006] Subsequent upgrades mostly use CAN signals to read the temperature difference at the air outlet of the cooling or heating function to determine whether the air conditioner is functioning properly.

[0007] All the above methods overlook a crucial technical point: regardless of whether it's a traditional gasoline-powered vehicle or a new energy vehicle, air conditioning requires a compressor to drive the refrigerant circulation. When the ambient temperature drops below 7°C (some models are set to below 5°C), the control system will forcibly shut off the compressor to prevent insufficient refrigerant flow and condenser freezing and cracking of pipe components at low temperatures. Therefore, using existing methods, the air conditioning cooling function cannot start normally when the ambient temperature is below 7°C, and detection based solely on temperature differences is insufficient. Summary of the Invention

[0008] The purpose of this invention is to provide a vehicle air conditioning detection method, device, electronic device, and storage medium. At least by shielding the actual ambient temperature value, the method sends the detected ambient temperature value, causing the air conditioning compressor to work for a short time, monitoring the compressor speed signal, the pressure value in the pipeline, and the change in refrigerant temperature, and then using this as a basis to determine whether the air conditioning cooling function is normal. This invention can realize the automated detection of the air conditioning cooling function in the driver's cab in low-temperature environments.

[0009] To address the aforementioned technical problems, in a first aspect, the present invention provides a vehicle air conditioning testing method, comprising at least: S1. In response to the vehicle thermal management system's functional self-test passing without fault, at least read the current ambient temperature value and determine whether the current ambient temperature value meets the extreme value judgment condition. S2. When the current ambient temperature value meets the extreme value judgment condition, at least it is determined whether the current ambient temperature value meets the simulated injection condition. S3. When the current ambient temperature value meets the simulation injection condition, the air conditioning cooling function is started after at least performing the simulation injection operation. Then, the air conditioning working mode request is read and it is determined whether the air conditioning working mode request is a valid cooling request. S4. When the air conditioning working mode request is the effective cooling request, the actual speed of the compressor is read after at least a delay. The vehicle air conditioning test is deemed qualified when the actual speed of the compressor meets the preset speed condition.

[0010] Optionally, after step S1, at least the following steps are also included: When the current ambient temperature value does not meet the extreme value judgment condition, it is determined whether the current ambient temperature value meets the first extreme value condition or the second extreme value condition. When the current ambient temperature value meets the first extreme value condition, the vehicle air conditioning test is determined to be unqualified, a sensor short circuit is indicated, and the test is terminated. When the current ambient temperature value meets the second extreme value condition, the vehicle air conditioning test is determined to be unqualified, the sensor is prompted to be open circuit, and the test is terminated.

[0011] Optionally, after step S2, at least the following steps are also included: When the current ambient temperature value does not meet the simulated injection conditions, at least the air conditioning cooling function is activated, the air conditioning working mode request is read, and it is determined whether the air conditioning working mode request is a valid cooling request, and then the process proceeds to step S4.

[0012] Optionally, after step S3, at least the following steps are also included: When the requested air conditioning operating mode is not a valid cooling request, the vehicle air conditioning test is determined to be unqualified, indicating that no cooling request was received, the error is recorded, and the test is terminated.

[0013] Optionally, after step S4, at least the following steps are also included: In response to the vehicle air conditioning system passing the test after the simulated injection operation is performed, a simulated injection recovery operation is performed.

[0014] Optionally, when the actual speed of the compressor does not meet the preset speed condition, the vehicle air conditioning test is deemed unqualified, an abnormal compressor speed and / or compressor start-up failure is indicated, and the test is terminated.

[0015] Optionally, the air conditioner operating mode request includes at least a cooling-only request, a cooling and heating request, a heating-only request, and no request.

[0016] Based on the same concept, in a second aspect, the present invention also provides a vehicle air conditioning testing device for performing the vehicle air conditioning testing method described in any one of the first aspects; The vehicle air conditioning detection device includes at least: The first judgment module is used to respond to the fact that the vehicle thermal management system has passed the functional self-test and has no faults, at least read the current ambient temperature value, and determine whether the current ambient temperature value meets the extreme value judgment condition. The second judgment module is used to at least determine whether the current ambient temperature value meets the simulated injection condition when the current ambient temperature value meets the extreme value judgment condition. The third judgment module is used to start the air conditioning cooling function after performing at least the simulation injection operation when the current ambient temperature value meets the simulation injection condition, and then read the air conditioning working mode request and determine whether the air conditioning working mode request is a valid cooling request. The pass / fail determination module is used to read the actual compressor speed at least after a delay when the air conditioning working mode request is the valid cooling request, and to determine that the vehicle air conditioning test is qualified when the actual compressor speed meets the preset speed condition.

[0017] Based on the same concept, in a third aspect, the present invention also provides an electronic device, including a memory and a processor, the memory storing a computer program executable on the processor, the processor executing the computer program to implement the steps in the vehicle air conditioning detection method of any one of the first aspects.

[0018] Based on the same concept, in a fourth aspect, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed, implements the steps in the vehicle air conditioning detection method of any one of the first aspects.

[0019] The technical solution provided by this invention, firstly, in response to the vehicle thermal management system's functional self-test passing without faults, at least the current ambient temperature value is read, and it is determined whether the current ambient temperature value meets the extreme value judgment condition; further, when the current ambient temperature value meets the extreme value judgment condition, at least it is determined whether the current ambient temperature value meets the simulated injection condition; further, when the current ambient temperature value meets the simulated injection condition, at least after performing the simulated injection operation, the air conditioning cooling function is started, then the air conditioning operating mode request is read, and it is determined whether the air conditioning operating mode request is a valid cooling request; finally, when the air conditioning operating mode request is a valid cooling request, at least after a delay, the actual compressor speed is read, and at least when the actual compressor speed meets the preset speed condition, the vehicle air conditioning test is determined to be qualified.

[0020] Therefore, this invention, at least by shielding the actual ambient temperature value and sending the detected ambient temperature value, causes the air conditioning compressor to work for a short time, monitors the compressor speed signal and the pressure value and refrigerant temperature changes in the pipeline, and then uses this as a basis to determine whether the air conditioning cooling function is normal. In low-temperature environments, it can realize the automated detection of the air conditioning cooling function in the cab. Attached Figure Description

[0021] Figure 1 This is a flowchart of a vehicle air conditioning testing method provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a vehicle air conditioning testing device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention; Figure 4 This is a complete flowchart of a vehicle air conditioning testing method provided in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0024] Figure 1This is a flowchart of a vehicle air conditioning testing method provided by an embodiment of the present invention. This embodiment is at least applicable to automated testing scenarios of the air conditioning cooling function in the driver's cab of any vehicle under low-temperature conditions. The vehicle air conditioning testing method can be, but is not limited to, executed by the vehicle air conditioning testing device in this embodiment of the present invention, which can be implemented in software and / or hardware. Figure 1 As shown, the vehicle air conditioning testing method includes at least the following steps: S1. In response to the vehicle thermal management system's functional self-test passing without faults, at least read the current ambient temperature value and determine whether the current ambient temperature value meets the extreme value judgment condition.

[0025] There are various methods for the self-testing and fault detection of the vehicle thermal management system.

[0026] In one specific implementation, a session can first be established between the diagnostic instrument and the thermal management controller (TMC), and then a "one-click self-test" diagnostic routine command can be sent to initiate the testing of the basic functions of the integrated thermal management system (such as display functions).

[0027] After the self-test is completed, read the system fault codes (DTCs): If there is no fault, it is determined that the vehicle thermal management system has passed the self-test and is fault-free. The current ambient temperature value is read and it is determined whether the current ambient temperature value meets the extreme value judgment condition. If a fault is detected, the specific fault code is read and parsed, and then the fault information is output and the detection is terminated.

[0028] In another specific implementation, optionally, after step S1, at least the following is also included: When the current ambient temperature value does not meet the extreme value judgment condition, determine whether the current ambient temperature value meets the first extreme value condition or the second extreme value condition. When the current ambient temperature value meets the first extreme value condition, the vehicle air conditioning test is determined to be unqualified, a sensor short circuit is indicated, and the test is terminated. When the current ambient temperature value meets the second extreme value condition, the vehicle air conditioning test is determined to be unqualified, indicating that the sensor is open-circuited and the test is terminated.

[0029] Based on this, in another specific implementation, the current ambient temperature value can be read through the ambient temperature data identifier (DID).

[0030] The logic for determining whether the current ambient temperature value meets the extreme value judgment condition can be as follows: If the current ambient temperature is >60℃ (the first extreme temperature value), then the current ambient temperature value is considered to meet the first extreme value condition, the sensor is determined to be short-circuited, and the detection is terminated. If the current ambient temperature value is less than -30°C (the second temperature extreme value), it is determined that the current ambient temperature value satisfies the second extreme value condition, a sensor open circuit is determined, and the detection is terminated; If the current ambient temperature value falls within the range of [-30°C, 60°C], it is determined that the current ambient temperature value satisfies the extreme value judgment condition, the temperature value can be recorded, and the process proceeds to step S2.

[0031] It can be understood that the aforementioned -30°C and 60°C are both value examples, which do not limit the present invention. In other embodiments, other temperature thresholds outside -30°C and 60°C may also be set correspondingly, which will not be repeated.

[0032] S2. When the current ambient temperature value satisfies the extreme value judgment condition, at least judge whether the current ambient temperature value satisfies the simulated injection condition.

[0033] There may be multiple manners for judging whether the current ambient temperature value satisfies the simulated injection condition.

[0034] In another specific embodiment, the magnitude relationship between the current ambient temperature value and a preset temperature threshold (for example, 7°C) may be compared. If the actual ambient temperature is ≤7°C, it is determined that the current ambient temperature value satisfies the simulated injection condition.

[0035] On the contrary, if the actual ambient temperature is >7°C, it is determined that the current ambient temperature value does not satisfy the simulated injection condition, and the process directly proceeds to a normal detection procedure (no temperature simulation is required). Exemplarily, the normal detection procedure may be: starting the air conditioning refrigeration function, reading the air conditioning operation mode request, and judging whether the air conditioning operation mode request is a valid refrigeration request. When the air conditioning operation mode request is a valid refrigeration request, at least reading the actual rotation speed of the compressor after a delay, and when at least the actual rotation speed of the compressor satisfies a preset rotation speed condition, it is determined that the vehicle air conditioning detection is qualified.

[0036] Based on this, in another specific embodiment, optionally, after step S2, the method at least further comprises: When the current ambient temperature value does not satisfy the simulated injection condition, (the simulated injection operation is not performed) at least the air conditioning refrigeration function is started, the air conditioning operation mode request is read, and it is judged whether the air conditioning operation mode request is a valid refrigeration request, and then the process proceeds to step S4.

[0037] S3. When the current ambient temperature value satisfies the simulated injection condition, at least the simulated injection operation is performed before the air conditioning refrigeration function is started, then the air conditioning operation mode request is read, and it is judged whether the air conditioning operation mode request is a valid refrigeration request.

[0038] There may be multiple forms of the simulated injection operation.

[0039] In yet another specific implementation, the following simulated injection operation can be performed: Send the VCU_F1B6 command (first send 00, then send 01) to the HCU via the diagnostic tool to stop broadcasting the actual ambient temperature; The HCU then broadcasts at a preset simulated temperature of 25°C (in other implementations, other preset simulated temperatures, such as 24°C, may also be used); The air conditioner controller receives a simulated ambient temperature of 25°C, considers that the cooling start conditions are met, and starts the air conditioner cooling function.

[0040] In yet another specific implementation, optionally, after step S3, at least the following is included: When the air conditioning operating mode request is not a valid cooling request, the vehicle air conditioning test is at least deemed unqualified, indicating that no cooling request was received, the error is recorded, and the test is terminated.

[0041] In another specific implementation, optionally, the air conditioning operating mode request includes at least a cooling-only request, a cooling and heating request, a heating-only request, and no request.

[0042] For example, the operator can be prompted to manually power on the equipment and turn on the cab cooling via the diagnostic system interface.

[0043] Furthermore, reading the air conditioner operating mode request via DID includes: 0x01: Cooling request only; 0x03: Cooling + Heating Request; 0x02: Heating request only; 0x00: No request.

[0044] Furthermore, the criteria for determining whether an air conditioning operating mode request is a valid cooling request can be: If 0x01 or 0x03 is read, a valid cooling request is confirmed, and the process proceeds to step S4. Otherwise, it will display "No cooling request received", record the error, and terminate the test.

[0045] S4. When the air conditioning working mode request is an effective cooling request, the actual compressor speed is read after at least a delay. The vehicle air conditioning test is deemed qualified when the actual compressor speed meets the preset speed condition.

[0046] The delay time for reading the actual compressor speed can be adapted to the actual vehicle application, for example, it can be 20 seconds.

[0047] In yet another specific implementation, optionally, after step S4, at least the following is included: In response to the vehicle's air conditioning passing the test after the simulated injection operation, a simulated injection recovery operation is performed.

[0048] In another specific implementation, optionally, when the actual speed of the compressor does not meet the preset speed condition, the vehicle air conditioning test is determined to be unqualified, indicating abnormal compressor speed and / or compressor start-up failure, and the test is terminated.

[0049] Based on the above technical solutions Figure 4 This is a complete flowchart of a vehicle air conditioning testing method provided in an embodiment of the present invention. See also... Figure 4 When the air conditioner's operating mode request is an effective cooling request, after a 20-second delay (first read delay duration), the actual compressor speed is read by reading the compressor speed DID (0rpm~12000rpm).

[0050] Furthermore, the criteria for determining whether the actual compressor speed meets the preset speed condition can be: If the actual compressor speed is >950rpm (preset speed threshold), it indicates that the compressor has started normally; after a 10-second delay (second reading delay duration), the final stable speed value is read and recorded; otherwise, it is determined that the compressor speed is abnormal and / or the compressor has failed to start.

[0051] Furthermore, if there are no faults in the above judgment steps, and the actual speed of the compressor meets the condition of >950rpm, then it is determined that "the cab air conditioning cooling test is qualified".

[0052] Furthermore, the simulated injection recovery operation can be: sending the VCU_F1B6 instruction 00 to turn off the transmission of simulated ambient temperature, so that the HCU can resume broadcasting the real ambient temperature.

[0053] Finally, the overall detection results are output: Pass: Displays "One-click self-test without fault"; Failure: Specific faults will be indicated item by item (such as sensor short circuit / open circuit, no cooling request received, abnormal compressor speed, etc.).

[0054] The technical solution provided in this embodiment firstly, in response to the vehicle thermal management system's functional self-test passing without faults, reads at least the current ambient temperature value and determines whether the current ambient temperature value meets the extreme value judgment condition; further, when the current ambient temperature value meets the extreme value judgment condition, determines at least whether the current ambient temperature value meets the simulated injection condition; further, when the current ambient temperature value meets the simulated injection condition, performs at least the simulated injection operation and starts the air conditioning cooling function, then reads the air conditioning operating mode request and determines whether the air conditioning operating mode request is a valid cooling request; finally, when the air conditioning operating mode request is a valid cooling request, delays reading the compressor's actual speed at least, and determines that the vehicle air conditioning test is qualified when the compressor's actual speed meets the preset speed condition.

[0055] Therefore, this embodiment at least shields the actual ambient temperature value and sends the detected ambient temperature value, causing the air conditioning compressor to work for a short time, monitoring the compressor speed signal and the pressure value and refrigerant temperature changes in the pipeline, and then using this as a basis to determine whether the air conditioning cooling function is normal. In low-temperature environments, it can realize the automated detection of the air conditioning cooling function in the cab.

[0056] It should be noted that this invention is the first to propose achieving self-testing of the refrigeration system through signal layer simulation in an environment ≤7℃, rather than physical heating, thus solving the technical problem of not being able to detect the air conditioner's cooling function in winter. Furthermore, this invention relies entirely on existing bus communication and controller software upgrades, requiring no additional sensors or actuators, resulting in extremely low cost. Finally, the simulation process of this invention does not initiate the actual refrigeration cycle (it only makes the controller think that cooling is needed), preventing evaporator icing or compressor liquid slugging.

[0057] Figure 2 This is a schematic diagram of a vehicle air conditioning testing device provided in an embodiment of the present invention. This embodiment is at least applicable to automated testing scenarios of the air conditioning cooling function in the driver's cab of any vehicle under low-temperature conditions. This vehicle air conditioning testing device can be implemented using software and / or hardware. Figure 2 As shown, the vehicle air conditioning testing device includes at least: The first judgment module 110 is used to respond to the fact that the vehicle thermal management system has passed the functional self-test and has no faults, at least read the current ambient temperature value, and determine whether the current ambient temperature value meets the extreme value judgment condition. The second judgment module 120 is used to at least determine whether the current ambient temperature value meets the simulation injection condition when the current ambient temperature value meets the extreme value judgment condition. The third judgment module 130 is used to start the air conditioning cooling function after performing at least the simulation injection operation when the current ambient temperature value meets the simulation injection conditions, and then read the air conditioning working mode request and determine whether the air conditioning working mode request is a valid cooling request. The pass / fail determination module 140 is used to read the actual compressor speed for at least a delay when the air conditioning working mode request is a valid cooling request, and to determine that the vehicle air conditioning test is qualified when the actual compressor speed meets the preset speed condition.

[0058] Optionally, it may also include at least a termination detection module 150; Termination detection module 150 is used for: When the current ambient temperature value does not meet the extreme value judgment condition, determine whether the current ambient temperature value meets the first extreme value condition or the second extreme value condition. When the current ambient temperature value meets the first extreme value condition, the vehicle air conditioning test is determined to be unqualified, a sensor short circuit is indicated, and the test is terminated. When the current ambient temperature value meets the second extreme value condition, the vehicle air conditioning test is determined to be unqualified, indicating that the sensor is open-circuited and the test is terminated.

[0059] Optionally, it may also include at least a non-injection module 160; The non-injection module 160 is used for: When the current ambient temperature does not meet the simulation injection conditions, at least the air conditioning cooling function is activated, the air conditioning working mode request is read, and it is determined whether the air conditioning working mode request is a valid cooling request. Then, the process is transferred to the qualification judgment module 140.

[0060] Optionally, the termination detection module 150 is also used for: When the air conditioning operating mode request is not a valid cooling request, the vehicle air conditioning test is at least deemed unqualified, indicating that no cooling request was received, the error is recorded, and the test is terminated.

[0061] Optionally, it may also include at least an injection recovery module 170; The injection recovery module 170 is used for: In response to the vehicle's air conditioning passing the test after the simulated injection operation, a simulated injection recovery operation is performed.

[0062] Optionally, the termination detection module 150 is also used for: When the actual compressor speed does not meet the preset speed condition, the vehicle air conditioning test is deemed unqualified, indicating abnormal compressor speed and / or compressor start-up failure, and the test is terminated.

[0063] Optionally, the air conditioning operating mode request includes at least a cooling-only request, a cooling and heating request, a heating-only request, and no request.

[0064] The technical solution provided in this embodiment firstly, in response to the vehicle thermal management system's functional self-test passing without faults, the first judgment module reads at least the current ambient temperature value and determines whether the current ambient temperature value meets the extreme value judgment condition; further, when the current ambient temperature value meets the extreme value judgment condition, the second judgment module determines at least whether the current ambient temperature value meets the simulated injection condition; further, when the current ambient temperature value meets the simulated injection condition, the third judgment module performs at least the simulated injection operation and starts the air conditioning cooling function, then reads the air conditioning operating mode request and determines whether the air conditioning operating mode request is a valid cooling request; finally, when the air conditioning operating mode request is a valid cooling request, the qualification judgment module reads the compressor's actual speed at least after a delay, and at least when the compressor's actual speed meets the preset speed condition, the vehicle air conditioning test is determined to be qualified.

[0065] Therefore, this embodiment at least shields the actual ambient temperature value and sends the detected ambient temperature value, causing the air conditioning compressor to work for a short time, monitoring the compressor speed signal and the pressure value and refrigerant temperature changes in the pipeline, and then using this as a basis to determine whether the air conditioning cooling function is normal. In low-temperature environments, it can realize the automated detection of the air conditioning cooling function in the cab.

[0066] This embodiment provides an electronic device. Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. See also: Figure 3 The electronic device 1000 includes a processor 1001 and a memory 1002. The memory 1002 stores computer-readable instructions. When the computer-readable instructions are executed by the processor 1001, the steps in any of the above vehicle air conditioning testing methods are performed. Through the above technical solution, the processor 1001 and the memory 1002 are interconnected and communicate with each other through a communication bus and / or other forms of connection mechanism (not shown). The memory 1002 stores a computer program that can be executed by the processor. When the electronic device 1000 is running, the processor 1001 executes the computer program to execute the vehicle air conditioning detection method in any optional implementation of the above embodiments, so as to at least achieve the following functions: in response to the vehicle thermal management system's functional self-test passing and without fault, at least read the current ambient temperature value and determine whether the current ambient temperature value meets the extreme value judgment condition; when the current ambient temperature value meets the extreme value judgment condition, at least determine whether the current ambient temperature value meets the simulation injection condition; when the current ambient temperature value meets the simulation injection condition, at least perform the simulation injection operation and start the air conditioning cooling function, then read the air conditioning working mode request and determine whether the air conditioning working mode request is a valid cooling request; when the air conditioning working mode request is a valid cooling request, at least delay reading the actual compressor speed, and at least when the actual compressor speed meets the preset speed condition, determine that the vehicle air conditioning test is qualified.

[0067] This embodiment provides a computer-readable storage medium storing a computer program that, when executed, implements the vehicle air conditioning detection method provided in all embodiments of the present invention: in response to the vehicle thermal management system's functional self-test passing without fault, at least the current ambient temperature value is read, and it is determined whether the current ambient temperature value meets the extreme value judgment condition; when the current ambient temperature value meets the extreme value judgment condition, at least it is determined whether the current ambient temperature value meets the simulation injection condition; when the current ambient temperature value meets the simulation injection condition, at least after performing the simulation injection operation, the air conditioning cooling function is started, and then the air conditioning operating mode request is read, and it is determined whether the air conditioning operating mode request is a valid cooling request; when the air conditioning operating mode request is a valid cooling request, at least after a delay, the actual compressor speed is read, and at least when the actual compressor speed meets the preset speed condition, the vehicle air conditioning is determined to be qualified.

[0068] Any combination of one or more computer-readable media may be used. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium can be, for example—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, apparatus, or device.

[0069] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including—but not limited to—electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of transmitting, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0070] The program code contained on a computer-readable medium may be transmitted using any suitable medium, including—but not limited to—wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0071] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—as well as conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for testing vehicle air conditioning, characterized in that, At least including: S1. In response to the vehicle thermal management system's functional self-test passing without fault, at least read the current ambient temperature value and determine whether the current ambient temperature value meets the extreme value judgment condition. S2. When the current ambient temperature value meets the extreme value judgment condition, at least it is determined whether the current ambient temperature value meets the simulated injection condition. S3. When the current ambient temperature value meets the simulation injection condition, the air conditioning cooling function is started after at least performing the simulation injection operation. Then, the air conditioning working mode request is read and it is determined whether the air conditioning working mode request is a valid cooling request. S4. When the air conditioning working mode request is the effective cooling request, the actual speed of the compressor is read after at least a delay. The vehicle air conditioning test is deemed qualified when the actual speed of the compressor meets the preset speed condition.

2. The vehicle air conditioning testing method according to claim 1, characterized in that, Following step S1, at least the following is also included: When the current ambient temperature value does not meet the extreme value judgment condition, it is determined whether the current ambient temperature value meets the first extreme value condition or the second extreme value condition. When the current ambient temperature value meets the first extreme value condition, the vehicle air conditioning test is determined to be unqualified, a sensor short circuit is indicated, and the test is terminated. When the current ambient temperature value meets the second extreme value condition, the vehicle air conditioning test is determined to be unqualified, the sensor is prompted to be open circuit, and the test is terminated.

3. The vehicle air conditioning testing method according to claim 1, characterized in that, After step S2, at least the following is also included: When the current ambient temperature value does not meet the simulated injection conditions, at least the air conditioning cooling function is activated, the air conditioning working mode request is read, and it is determined whether the air conditioning working mode request is a valid cooling request, and then the process proceeds to step S4.

4. The vehicle air conditioning testing method according to claim 1, characterized in that, After step S3, at least the following is also included: When the requested air conditioning operating mode is not a valid cooling request, the vehicle air conditioning test is determined to be unqualified, indicating that no cooling request was received, the error is recorded, and the test is terminated.

5. The vehicle air conditioning testing method according to claim 1, characterized in that, After step S4, at least the following is also included: In response to the vehicle air conditioning system passing the test after the simulated injection operation is performed, a simulated injection recovery operation is performed.

6. The vehicle air conditioning testing method according to claim 1, characterized in that, When the actual speed of the compressor does not meet the preset speed condition, the vehicle air conditioning test is deemed unqualified, indicating abnormal compressor speed and / or compressor start-up failure, and the test is terminated.

7. The vehicle air conditioning testing method according to claim 1, characterized in that, The air conditioning operating mode request includes at least a cooling-only request, a cooling and heating request, a heating-only request, and no request.

8. A vehicle air conditioning detection device, characterized in that, Used to perform the vehicle air conditioning testing method according to any one of claims 1-7; The vehicle air conditioning detection device includes at least: The first judgment module is used to respond to the fact that the vehicle thermal management system has passed the functional self-test and has no faults, at least read the current ambient temperature value, and determine whether the current ambient temperature value meets the extreme value judgment condition. The second judgment module is used to at least determine whether the current ambient temperature value meets the simulated injection condition when the current ambient temperature value meets the extreme value judgment condition. The third judgment module is used to start the air conditioning cooling function after performing at least the simulation injection operation when the current ambient temperature value meets the simulation injection condition, and then read the air conditioning working mode request and determine whether the air conditioning working mode request is a valid cooling request. The pass / fail determination module is used to read the actual compressor speed at least after a delay when the air conditioning working mode request is the valid cooling request, and to determine that the vehicle air conditioning test is qualified when the actual compressor speed meets the preset speed condition.

9. An electronic device comprising a memory and a processor, the memory storing a computer program executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the vehicle air conditioning detection method according to any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed, it performs the steps of the vehicle air conditioning testing method according to any one of claims 1-7.

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