Vehicle-mounted air conditioner testing method and system based on temperature parameter calibration
Through the testing methods and systems based on temperature parameter calibration, the calibration enable signal and XCP protocol are used to solve the problem of difficult to quickly simulate and verify the functional problems of vehicle air conditioning under extreme operating conditions in the prior art, and the rapid simplification of vehicle air conditioning function testing and functional verification under complex environmental operating conditions are achieved.
Patent Information
- Application Number
- CN202510342025.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-06-13
AI Technical Summary
The prior art is difficult to quickly simulate and verify the functions of vehicle-mounted air conditioners under extreme operating conditions, and the hardware-in-ring method is costly and the testing environment is built and debugged takes time, so it is impossible to complete the actual vehicle-level test.
Through the test methods and systems based on temperature parameter calibration, using the calibration enable signal and XCP protocol, the air conditioning electronic control unit tests the functions of the vehicle air conditioner based on the calibrated interior and/or exterior temperature, so as to achieve rapid switching to normal use.
It realizes rapid switching between the calibration test state and normal use state of the vehicle air conditioner, simplifies functional testing, and can quickly simulate the verification of the function of the vehicle air conditioner under complex environments and working conditions, and is simple to operate.
Smart Images
Figure CN120141869A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of parameter calibration, and provides a vehicle air conditioner test method and system based on temperature parameter calibration. Background Art
[0002] With the rapid development of new energy vehicles, the competition in the automotive market is becoming increasingly fierce, and the development cycle is getting shorter and shorter. The rapid development and verification of vehicle functions are being taken more and more seriously. It determines whether the product can be rapidly iterated and is also one of the important factors in the competitiveness of the product in the automotive market.
[0003] The vehicle air conditioner is an important device in the vehicle for adjusting the temperature, humidity, air flow speed and air cleanliness inside the vehicle. Its comfort is of more concern to users. Before the vehicle is launched, it is necessary to conduct a complete functional test and working condition test on the vehicle air conditioner. For some extreme working conditions, it is very difficult to simulate them during the real vehicle test.
[0004] The existing technology generally uses the hardware-in-the-loop method to verify the complex working conditions of the real vehicle. The hardware-in-the-loop method not only requires high costs, but also takes a certain amount of time to build and debug the test environment. The hardware-in-the-loop method cannot assist in completing the real vehicle-level test. Summary of the Invention
[0005] In view of this, the present application provides a vehicle air conditioner test method based on temperature parameter calibration, aiming to improve at least one of the above problems.
[0006] Specifically, the following technical solutions are included:
[0007] On the one hand, an embodiment of the present application provides a vehicle air conditioner test method based on temperature parameter calibration, characterized in that the method specifically includes the following steps:
[0008] (1) Detect whether there is a valid calibration enable signal;
[0009] (2) If the detection result is yes, the vehicle air conditioner enters the calibration test state, and the air conditioner electronic control unit tests the function of the vehicle air conditioner based on the calibrated in-vehicle temperature and / or out-vehicle temperature. If the detection result is no, the vehicle air conditioner enters the normal use state, and the air conditioner electronic control unit controls the vehicle air conditioner based on the collected in-vehicle temperature and out-vehicle temperature.
[0010] In some embodiments of the present invention, when there is a valid in-vehicle temperature calibration enable signal and / or out-vehicle temperature calibration enable signal, the vehicle air conditioner enters the calibration test state.
[0011] In some embodiments of the present invention, when there is a valid in-vehicle temperature calibration enable signal, the air conditioner electronic control unit tests the function of the vehicle air conditioner based on the input in-vehicle temperature calibration value;
[0012] When there is a valid outside temperature calibration enable signal, the air-conditioning electronic control unit tests the function of the vehicle-mounted air conditioner based on the input outside temperature calibration value;
[0013] When there are valid outside temperature calibration enable signal and inside temperature calibration enable signal, the air-conditioning electronic control unit tests the function of the vehicle-mounted air conditioner based on the input inside temperature calibration value and outside temperature calibration value.
[0014] In some embodiments of the present invention, the input inside temperature calibration enable signal, outside temperature calibration enable signal, inside temperature calibration value and outside temperature calibration value are converted into automotive network bus data that meets the XCP protocol, and then sent to the air-conditioning electronic control unit.
[0015] On the other hand, the embodiment of the present application provides a vehicle-mounted air conditioner test system based on temperature parameter calibration, and the system includes:
[0016] A host computer, a data transceiver device and an air-conditioning electronic control unit connected in sequence;
[0017] The host computer is used to input a calibration enable signal, input the input calibration enable signal and its corresponding calibration parameters into the data transceiver device. The data transceiver device converts the calibration enable signal into automotive network bus data of the XCP protocol and sends it to the air-conditioning electronic control unit. After the air-conditioning electronic control unit detects a valid calibration enable signal, the vehicle-mounted air conditioner enters the calibration test state, tests the function of the vehicle-mounted air conditioner based on the corresponding calibration parameters. The vehicle-mounted air conditioner unit reads the test parameters of each air-conditioning component and sends them to the host computer through the data transceiver device, and the host computer detects whether the test parameters of each component meet the set strategy corresponding to the function.
[0018] In some embodiments of the present invention, the calibration enable signal is an inside temperature calibration enable signal or an outside temperature calibration enable signal.
[0019] In some embodiments of the present invention, when the inside temperature calibration enable signal and the inside temperature calibration value are input, after the air-conditioning electronic control unit detects a valid inside temperature calibration enable signal, it tests the function of the vehicle-mounted air conditioner based on the inside temperature calibration value;
[0020] When the outside temperature calibration enable signal and the outside temperature calibration value are input, after the air-conditioning electronic control unit detects a valid outside temperature calibration enable signal, it tests the function of the vehicle-mounted air conditioner based on the outside temperature calibration value.
[0021] When the outside vehicle temperature calibration enable signal, the outside vehicle temperature calibration value, the inside vehicle temperature calibration enable signal, and the inside vehicle temperature calibration value are input, after detecting a valid outside vehicle temperature calibration enable signal or inside vehicle temperature calibration enable signal, the air-conditioning electronic control unit tests the function of the vehicle-mounted air conditioner based on the outside vehicle temperature calibration value and the outside vehicle temperature calibration value.
[0022] In some embodiments of the present invention, when the air-conditioning electronic control unit does not detect a valid temperature calibration enable signal and outside vehicle temperature calibration enable signal, the vehicle-mounted air conditioner is in a normal use state, the communication between the air-conditioning electronic control unit and the host computer is disconnected, and the vehicle-mounted air conditioner electronic control unit controls the vehicle-mounted air conditioner based on the inside vehicle temperature collected by the inside vehicle temperature sensor and the outside vehicle temperature of the outside vehicle temperature sensor.
[0023] In some embodiments of the present invention, when the host computer sends an inside vehicle temperature calibration enable signal or / and an outside vehicle temperature calibration enable signal to the air-conditioning electronic control unit, the host computer first establishes a communication connection with the air-conditioning electronic control unit, and then sends the inside vehicle temperature calibration enable signal or / and the outside vehicle temperature calibration enable signal to the air-conditioning electronic control unit through the data transceiver device.
[0024] The vehicle-mounted air conditioner test method based on temperature parameter calibration provided by the present invention has the following beneficial technical effects:
[0025] (1) Based on the calibration enable signal, the vehicle-mounted air conditioner is quickly switched between the calibration test state and the normal use state. After the vehicle-mounted air conditioner completes the calibration test, the vehicle-mounted air conditioner resumes to the normal use state, which greatly simplifies the function test of the vehicle-mounted air conditioner before the vehicle is launched on the market.
[0026] (2) Based on the XCP protocol, the outside vehicle temperature value and / or the inside vehicle temperature value inside the air-conditioning electronic control unit are set to simulate the outside vehicle temperature and / or the outside vehicle temperature that are difficult to achieve in the actual vehicle environment, quickly realizing the function verification of the vehicle-mounted air conditioner under complex environments and working conditions, and the operation is simple. Description of the Drawings
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0028] Figure 1 It is a flowchart of the vehicle-mounted air conditioner test method based on temperature parameter calibration provided by the embodiments of the present invention;
[0029] Figure 2 It is a schematic structural diagram of the vehicle-mounted air conditioner test system based on temperature parameter calibration provided by the embodiments of the present invention;
[0030] Through the above-mentioned accompanying drawings, specific embodiments of the present application have been shown, and there will be a more detailed description hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners
[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0032] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meaning as commonly understood by those of ordinary skill in the art.
[0033] Figure 1 The following is a flowchart of a vehicle-mounted air conditioner test method based on temperature parameter calibration provided for the embodiments of the present invention. The method is as follows:
[0034] (1) Detect whether there is a valid calibration enable signal;
[0035] (2) If the detection result is yes, the vehicle-mounted air conditioner enters the calibration test state. At this time, the air conditioner electronic control unit tests the function of the vehicle-mounted air conditioner based on the calibrated in-vehicle temperature and / or out-vehicle temperature. If the detection result is no, the vehicle-mounted air conditioner enters the normal use state, and the air conditioner electronic control unit controls the vehicle-mounted air conditioner based on the in-vehicle temperature and out-vehicle temperature collected by the temperature sensor.
[0036] When the vehicle-mounted air conditioner is in the calibration test state, the air conditioner electronic control unit tests the vehicle-mounted air conditioner based on the calibrated in-vehicle temperature and out-vehicle temperature. At the same time, the air conditioner electronic control unit reads the test data of vehicle-mounted air conditioner components such as the compressor and the blower, detects whether the test data of the vehicle-mounted air conditioner meets the strategy set for the corresponding function, calibrates different out-vehicle temperatures, detects whether the rotation speeds of the compressor and the blower are within the maximum rotation speed range set for the corresponding temperature, and detects whether the compressor starts in the case of low temperature (below 0).
[0037] In the embodiments of the present invention, the calibration enable signal includes: an in-vehicle temperature calibration enable signal and an out-vehicle temperature calibration enable signal. When the in-vehicle temperature calibration enable signal or / and the out-vehicle temperature calibration enable signal is valid, the vehicle-mounted air conditioner enters the calibration test state. When the in-vehicle temperature calibration enable signal is input, the in-vehicle temperature calibration value is input at the same time. Similarly, when the out-vehicle temperature calibration enable signal is input, the out-vehicle temperature calibration value is input at the same time.
[0038] After inputting the in-vehicle temperature calibration enable signal, and detecting a valid in-vehicle temperature calibration enable signal, the air-conditioning electronic control unit tests the function of the vehicle-mounted air conditioner based on the input in-vehicle temperature calibration value; after inputting the out-vehicle temperature calibration enable signal, when detecting a valid out-vehicle temperature calibration enable signal, the air-conditioning electronic control unit tests the function of the vehicle-mounted air conditioner based on the input out-vehicle temperature calibration value; after inputting the in-vehicle temperature calibration enable signal and the out-vehicle temperature calibration enable signal, when detecting the existence of valid in-vehicle temperature calibration enable signal and out-vehicle temperature calibration enable signal, the air-conditioning electronic control unit tests the function of the vehicle-mounted air conditioner based on the input in-vehicle temperature calibration value and out-vehicle temperature calibration value.
[0039] In the embodiment of the present invention, the input in-vehicle temperature calibration enable signal, out-vehicle temperature calibration enable signal, in-vehicle temperature calibration value and out-vehicle temperature calibration value are converted into automotive network bus data (such as CAN data or automotive Ethernet signal) that meets the XCP protocol.
[0040] The vehicle-mounted air conditioner testing method based on temperature parameter calibration provided by the present invention has the following beneficial technical effects:
[0041] (1) Based on the calibration enable signal, the vehicle-mounted air conditioner is quickly switched between the calibration test state and the normal use state. After the vehicle-mounted air conditioner completes the calibration test, it returns to the normal use state, greatly simplifying the function test of the vehicle-mounted air conditioner before the vehicle is launched.
[0042] (2) Based on the XCP protocol, the out-vehicle temperature value and / or in-vehicle temperature value inside the air-conditioning electronic control unit are set to simulate the out-vehicle temperature and / or in-vehicle temperature that are difficult to achieve in the actual vehicle environment, quickly realizing the function verification of the vehicle-mounted air conditioner under complex environments and working conditions, and the operation is simple.
[0043] Figure 2 The following is a schematic structural diagram of the vehicle-mounted air conditioner testing system based on temperature parameter calibration provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the invention are shown. The system includes:
[0044] A host computer, a data transceiver device and an air-conditioning electronic control unit connected in sequence;
[0045] The host computer is used to input the calibration enable signal, input the input calibration enable signal and its corresponding calibration parameters into the data transceiver device. The data transceiver device converts the calibration enable signal into automotive network bus data of the XCP protocol and sends it to the air-conditioning electronic control unit. After the air-conditioning electronic control unit detects a valid calibration enable signal, it tests the function of the vehicle-mounted air conditioner based on the corresponding calibration parameters. The vehicle-mounted air conditioner unit reads the test parameters of each air-conditioning component and sends them to the host computer through the data transceiver device. The host computer detects whether the test parameters of each component meet the set strategy corresponding to the function.
[0046] In an embodiment of the present invention, the calibration enable signal includes: an in-vehicle temperature calibration enable signal and an out-vehicle temperature calibration enable signal. When the in-vehicle temperature calibration enable signal or / and the out-vehicle temperature calibration enable signal is effective, the vehicle-mounted air conditioner enters the calibration test state.
[0047] When the in-vehicle temperature calibration enable signal and the in-vehicle temperature calibration value are input through the host computer, the data transceiver device converts the in-vehicle temperature calibration enable signal and the in-vehicle temperature calibration value into automotive network bus data in the XCP protocol and sends it to the air conditioner electronic control unit. After detecting the effective in-vehicle temperature calibration enable signal, the air conditioner electronic control unit tests the functions of the vehicle-mounted air conditioner based on the in-vehicle temperature calibration value. The vehicle-mounted air conditioner unit reads the test parameters of each air-conditioning component and sends them to the host computer through the data transceiver device. The host computer detects whether the test parameters of each component meet the set strategy corresponding to the function.
[0048] When the out-vehicle temperature calibration enable signal and the out-vehicle temperature calibration value are input through the host computer, the data transceiver device converts the out-vehicle temperature calibration enable signal and the out-vehicle temperature calibration value into automotive network bus data in the XCP protocol and sends it to the air conditioner electronic control unit. After detecting the effective out-vehicle temperature calibration enable signal, the air conditioner electronic control unit tests the functions of the vehicle-mounted air conditioner based on the out-vehicle temperature calibration value. The air conditioner electronic control unit reads the test parameters of each air-conditioning component and sends them to the host computer through the data transceiver device. The host computer detects whether the test parameters of each component meet the set strategy.
[0049] When the out-vehicle temperature calibration enable signal and the out-vehicle temperature calibration value, the in-vehicle temperature calibration enable signal and the in-vehicle temperature calibration value are input through the host computer, the data transceiver device converts the out-vehicle temperature calibration enable signal and the out-vehicle temperature calibration value, the in-vehicle temperature calibration enable signal and the in-vehicle temperature calibration value into automotive network bus data in the XCP protocol and sends it to the air conditioner electronic control unit. After detecting the effective out-vehicle temperature calibration enable signal or the in-vehicle temperature calibration enable signal, the air conditioner electronic control unit tests the functions of the vehicle-mounted air conditioner based on the out-vehicle temperature calibration value and the out-vehicle temperature calibration value. The vehicle-mounted air conditioner unit reads the test parameters of each air-conditioning component and sends them to the host computer through the data transceiver device. The host computer detects whether the test parameters of each component meet the set strategy corresponding to the function.
[0050] In an embodiment of the present invention, when the air conditioner electronic control unit does not detect a valid temperature calibration enable signal and an outside vehicle temperature calibration enable signal, the on-vehicle air conditioner is in a normal use state at this time, and the communication between the air conditioner electronic control unit and the host computer is disconnected. At this time, the on-vehicle air conditioner electronic control unit controls the on-vehicle air conditioner based on the in-vehicle temperature collected by the in-vehicle temperature sensor and the outside vehicle temperature of the outside vehicle temperature sensor. When the host computer sends an in-vehicle temperature calibration enable signal or / and an outside vehicle temperature calibration enable signal to the air conditioner electronic control unit, the host computer establishes communication with the air conditioner electronic control unit, and sends the in-vehicle temperature calibration enable signal or / and the outside vehicle temperature calibration enable signal to the air conditioner electronic control unit through the data transceiver device.
[0051] In an embodiment of the present invention, during the functional test of the on-vehicle air conditioner, the air conditioner electronic control unit only needs one of the in-vehicle temperature or the outside vehicle temperature. For the convenience of operation, a trigger key for independently inputting or triggering the in-vehicle calibration enable signal and the outside vehicle temperature calibration enable signal is set on the host computer. Of course, for the convenience of simultaneously inputting and triggering the in-vehicle calibration enable signal and the outside vehicle temperature calibration enable signal, the host computer also designs a trigger key for simultaneously inputting or triggering the in-vehicle calibration enable signal and the outside vehicle temperature calibration enable signal.
[0052] The on-vehicle air conditioner test system based on temperature parameter calibration provided by the present invention enters the calibration test state quickly based on the calibration enable signal through the calibration enable signal. After the on-vehicle air conditioner completes the calibration test, the on-vehicle air conditioner automatically returns to the normal use state, greatly simplifying the functional test of the on-vehicle air conditioner before the vehicle is launched. In addition, in the calibration test state, the outside vehicle temperature value and / or the in-vehicle temperature value inside the air conditioner electronic control unit are set through the host computer to simulate the outside vehicle temperature and / or the outside vehicle temperature that are difficult to achieve in the actual vehicle environment, quickly realizing the functional verification of the on-vehicle air conditioner under complex environments and working conditions, and the operation is simple.
[0053] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practice of the present application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary.
[0054] It should be understood that the present application is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.
Claims
1. A vehicle air conditioning test method based on temperature parameter calibration, characterized in that: The method specifically comprises the following steps: (1) Detect whether there is a valid calibration enable signal; (2) If the test result is yes, the vehicle air conditioner enters the calibration test state, and the air conditioning electronic control unit tests the function of the vehicle air conditioner based on the calibrated in-vehicle temperature and / or outside temperature. If the test result is no, the vehicle air conditioner enters the normal use state, and the air conditioning electronic control unit controls the vehicle air conditioner based on the collected in-vehicle temperature and outside temperature.
2. The vehicle air conditioning test method based on temperature parameter calibration as claimed in claim 1, characterized in that: When there is a valid in-vehicle temperature calibration enable signal and / or an outside-vehicle temperature calibration enable signal, the vehicle air conditioner enters a calibration test state.
3. The vehicle air conditioning test method based on temperature parameter calibration as claimed in claim 2, characterized in that: When there is a valid in-vehicle temperature calibration enable signal, the air conditioning electronic control unit tests the function of the vehicle air conditioning based on the input in-vehicle temperature calibration value; When there is a valid outside temperature calibration enable signal, the air conditioning electronic control unit tests the function of the vehicle air conditioning based on the input outside temperature calibration value; When there is a valid outside temperature calibration enable signal and an inside temperature calibration enable signal, the air conditioning electronic control unit tests the function of the vehicle air conditioning based on the input inside temperature calibration value and outside temperature calibration value.
4. The vehicle air conditioning test method based on temperature parameter calibration as claimed in claim 1, characterized in that: The input in-vehicle temperature calibration enable signal, out-vehicle temperature calibration enable signal, in-vehicle temperature calibration value and out-vehicle temperature calibration value are converted into automotive network bus data that meets the XCP protocol, and then sent to the air-conditioning electronic control unit.
5. A vehicle air conditioning test system based on temperature parameter calibration, characterized in that: The system comprises: The host computer, data transceiver equipment and vehicle air conditioning electronic control unit are connected in sequence; The host computer is used to input the calibration enable signal, and input the input calibration enable signal and its corresponding calibration parameters to the data transceiver device. The data transceiver device converts the calibration enable signal into the automobile network bus data of the XCP protocol and sends it to the vehicle air-conditioning electronic control unit. After the air-conditioning electronic control unit detects the valid calibration enable signal, the vehicle air-conditioning enters the calibration test state and tests the function of the vehicle air-conditioning based on the corresponding calibration parameters. The vehicle air-conditioning unit reads the test parameters of each air-conditioning component and sends them to the host computer through the data transceiver device. The host computer detects whether the test parameters of each component meet the setting strategy corresponding to the function.
6. The vehicle air conditioning test system based on temperature parameter calibration as claimed in claim 5, characterized in that: The calibration enable signal is an in-vehicle temperature calibration enable signal or an out-vehicle temperature calibration enable signal.
7. The vehicle air conditioning test system based on temperature parameter calibration as claimed in claim 6, characterized in that: When the in-vehicle temperature calibration enable signal and the in-vehicle temperature calibration value are input, the air-conditioning electronic control unit tests the function of the vehicle air-conditioning based on the in-vehicle temperature calibration value after detecting the valid in-vehicle temperature calibration enable signal; When the outside temperature calibration enable signal and the outside temperature calibration value are input, the air conditioning electronic control unit tests the function of the vehicle air conditioning based on the outside temperature calibration value after detecting a valid outside temperature calibration enable signal. When the outside temperature calibration enable signal and the outside temperature calibration value, the inside temperature calibration enable signal and the inside temperature calibration value are input, the air-conditioning electronic control unit tests the function of the vehicle air-conditioning based on the outside temperature calibration value and the outside temperature calibration value after detecting a valid outside temperature calibration enable signal or an inside temperature calibration enable signal.
8. The vehicle air conditioning test system based on temperature parameter calibration as claimed in claim 6, characterized in that: When the air conditioning electronic control unit does not detect a valid temperature calibration enable signal and an outdoor temperature calibration enable signal, the vehicle air conditioner is in normal use, the communication between the air conditioning electronic control unit and the host computer is disconnected, and the vehicle air conditioning electronic control unit controls the vehicle air conditioner based on the indoor temperature collected by the outdoor temperature sensor and the outdoor temperature collected by the outdoor temperature sensor.
9. The vehicle air conditioning test system based on temperature parameter calibration as claimed in claim 5, characterized in that: When the host computer sends an in-vehicle temperature calibration enable signal or / and an outside temperature calibration enable signal to the air-conditioning electronic control unit, the host computer first establishes a communication connection with the air-conditioning electronic control unit, and then sends the in-vehicle temperature calibration enable signal or / and the outside temperature calibration enable signal to the air-conditioning electronic control unit through the data transceiver device.