Automobile product test system

Abstract

The utility model discloses an automobile product testing system, and belongs to the field of automobile testing. The system comprises a product information reading device, an upper computer, a to-be-tested product and a simulation controller, and the product information reading device is connected with the upper computer and used for obtaining product information; the upper computer is respectively connected with the product information reading device, the to-be-tested product and the simulation controller, and is used for acquiring and verifying product information, simulating a BCM control signal required by the to-be-tested product according to the product information, and controlling the simulation controller to simulate an IO signal required by the to-be-tested product; and the product to be tested is connected with the analog controller, and is used for receiving the IO signal and the BCM control signal, testing the IO signal and the BCM control signal, and feeding back a test result to the upper computer. According to the utility model, comprehensive and efficient testing of function modules and functions can be carried out on a product without involving the existing software of the whole vehicle and without destroying the current hardware environment.

Description

Technical Field

[0001] The utility model belongs to the field of automobile testing, and specifically relates to an automobile product testing system. Background Art

[0002] For electric vehicles, after passing the manufacturer's tests, R&D must design a system that passes various tests to ensure that the products submitted to the manufacturer meet the manufacturer's needs while not destroying the original code design system.

[0003] Without testing after the code is burned in before the product is released from the production line, there's no way to determine if the product has hardware defects like cold solder joints, nor is it possible to confirm whether the manufacturer's specific software parameters are correct. Existing technology relies entirely on manual testing, such as flipping switches. Testing a single product often takes over 10 minutes, making it prone to errors and inefficient.

[0004] A comparative document (CN117589431A) discloses a glass lift durability test bench and test method with a DCU, comprising a door control module (DCU), a custom-built ECU module, a programmable logic controller (PLC), a current transformer, and a data acquisition instrument. The method includes the following steps: constructing the glass lift durability test bench with the DCU; programming the PLC module with the test flow via a PC; and sending control instructions to the door control module (DCU) via the custom-built ECU module, conducting a glass durability test according to the test flow set by the PLC module. However, the comparative document only covers durability testing of vehicle door glass, lacking comprehensive product testing and limited versatility.

[0005] Therefore, there is an urgent need for a solution to ensure that the functional modules and functions of shipped products can be comprehensively and accurately tested without involving the entire vehicle software or damaging the current hardware environment. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the existing technology and proposes an automobile product testing system to achieve the following purposes: without involving the existing software of the whole vehicle and without damaging the current hardware environment, the functional modules and functions of the product can be comprehensively and efficiently tested.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An automobile product testing system includes a product information reading device, a host computer, a product to be tested, and a simulation controller, wherein:

[0009] The product information reading device is connected to the host computer and is used to obtain product information, wherein the product information includes IO signals and BCM control signals required by the product to be tested;

[0010] The host computer is respectively connected to the product information reading device, the product to be tested, and the simulation controller, and is used to obtain and verify product information, simulate the BCM control signal required by the product to be tested according to the product information, and control the simulation controller to simulate the IO signal required by the product to be tested;

[0011] The product to be tested is connected to the simulation controller, and is used to receive the IO signal and the BCM control signal and perform a test, and the test result is fed back to the host computer.

[0012] Preferably, the host computer is connected to the product to be tested via a CAN bus and a LIN bus.

[0013] Preferably, the host computer is connected to the analog controller via an RS485 communication module.

[0014] Preferably, the simulation controller adopts a programmable logic controller PLC, and the PLC includes an input and output control module, and the input and output control modules are respectively connected to the host computer and the product to be tested.

[0015] Preferably, the product information reading device includes a barcode scanner and a QR code, wherein the QR code is configured on the product to be tested, and the barcode scanner is connected to the host computer.

[0016] Preferably, the product information reading device includes an RFID reader and an RFID electronic tag, the RFID electronic tag is configured on the product to be tested, and the RFID reader is connected to the host computer.

[0017] Preferably, the system further comprises a test indicator light, which is connected to the host computer and is used to display the test status in real time.

[0018] The technical effects of the present invention are as follows: (1) The present application combines the host computer to simulate the various signals of the entire vehicle and sends the signals to the product to be tested. The host computer program reads the feedback signal of the product to be tested and determines the correctness of the signal, which greatly shortens the test time, saves labor costs, improves test efficiency, and reduces the probability of error. (2) The system of the present application does not make any software changes to the product to be tested. It only simulates the signal input of the product to be tested during actual operation through external signals to perform testing. It does not involve the existing software of the entire vehicle and does not damage the current hardware environment. It can perform comprehensive and efficient testing of the functional modules and functions of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a system structure diagram of an automobile product according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0020] The following is a detailed description of the specific embodiments of the present invention by referring to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the present invention and to facilitate its implementation. To make the technical solution of the present invention more clear, the present invention is explained through the following embodiments.

[0021] An automotive product testing system, such as Figure 1 As shown, the system includes a product information reading device, a host computer, a product to be tested, and a simulation controller. In specific implementation, the product to be tested can be various parts of a car, such as doors, wheels, body, etc.

[0022] Specifically, the product information reading device of this embodiment is connected to the host computer and is used to obtain product information, and the product information includes the IO signals and BCM (body controller) control signals required by the product to be tested, as well as the product type and serial number, etc. In this embodiment, the product information reading device uses a barcode scanner and a QR code, wherein the QR code is configured on the product to be tested and is used to save product information; the barcode scanner is connected to the host computer, and the barcode scanner can obtain the corresponding product information by scanning the QR code on the product to be tested. As an alternative, the barcode scanner can also use an intelligent terminal with a camera, such as a mobile phone, tablet, etc. In this case, the intelligent terminal obtains the corresponding product information by scanning the QR code on the product to be tested, and can upload it to the host computer through a wired data transmission method of a data cable, and also supports remote connection to the host computer through wireless technology to upload information. The application of the barcode scanning method can quickly read the product information of the product to be tested, thereby improving the test efficiency.

[0023] In a preferred embodiment of the present application, the product information reading device can also use an RFID (radio frequency identification) reader and an RFID electronic tag. The RFID electronic tag is configured on the product to be tested and is used to store product information; the RFID reader is connected to the host computer, and the RFID reader can obtain the corresponding product information by reading the RFID electronic tag.

[0024] The host computer of this embodiment is connected to the product information reading device, the product to be tested, and the simulation controller, respectively, to obtain and verify product information, simulate the BCM control signals required by the product to be tested based on the product information, and control the simulation controller to simulate the IO (input and output) signals required by the product to be tested. The host computer is connected to the product to be tested via a CAN bus and a LIN bus. The host computer is connected to the simulation controller via an RS485 communication module.

[0025] The product under test in this embodiment is connected to the simulation controller, which is used to receive the IO signals and BCM control signals and perform tests, and the test results are fed back to the host computer. In this embodiment, the simulation controller adopts a programmable logic controller (PLC), which can quickly respond to the input signals of the host computer and perform real-time control, thereby improving testing efficiency. The PLC in this embodiment includes input and output control modules, which are respectively connected to the host computer and the product under test, and are used to simulate the corresponding product IO signals based on the input signals of the host computer, thereby replacing the traditional manual switch mode.

[0026] After obtaining the product information, the host computer can verify the product type by reading the serial number and other information. After completing the verification, the product to be tested needs to have various types of signal inputs during the actual working process. In this embodiment, taking the car door as an example, the car door test requires various IO signals and BCM control signals. Among them, in this embodiment, the BCM control signal is simulated by the host computer and sent to the car door through the CAN bus for testing. At this time, the LIN bus is responsible for monitoring the status of the car door and feeding back to the host computer; for various IO signals, such as the car door glass lifting control signal, the host computer controls the PLC to simulate and input the car door to replace the traditional manual switch mode, and monitors the status of the car door through the CAN bus and feeds back to the host computer, thereby achieving comprehensive functional testing. In order to ensure test efficiency, the host computer can also unify the initial state of the product to be tested through the PLC, for example, setting the car door to a locked state.

[0027] Preferably, the system of this embodiment further includes a test indicator light, which is connected to the host computer and is used to display the test status in real time. For example, a green light turns on when the test starts and a red light turns on when the test ends. The specific indicator light status can be flexibly selected according to actual conditions.

[0028] This application combines a host computer to simulate various signals of the entire vehicle, sends the signals to the product under test, and the host computer program reads the feedback signal of the product under test and determines the correctness of the signal, which greatly shortens the test time, saves labor costs, improves test efficiency, and reduces the probability of error. The system of this application does not make any software changes to the product under test. It only simulates the signal input of the product under test during actual operation through external signals for testing. It does not involve the existing software of the entire vehicle and does not damage the current hardware environment. It can perform comprehensive and efficient testing of the product's functional modules and functions.

[0029] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. An automotive product testing system, characterized by: The system includes a product information reading device, a host computer, a product to be tested, and a simulation controller, wherein: The product information reading device is connected to the host computer and is used to obtain product information, wherein the product information includes IO signals and BCM control signals required by the product to be tested; The host computer is respectively connected to the product information reading device, the product to be tested, and the simulation controller, and is used to obtain and verify product information, simulate the BCM control signal required by the product to be tested according to the product information, and control the simulation controller to simulate the IO signal required by the product to be tested; The product to be tested is connected to the simulation controller, and is used to receive the IO signal and the BCM control signal and perform a test, and the test result is fed back to the host computer.

2. The automotive product testing system according to claim 1, characterized in that: The host computer is connected to the product to be tested via a CAN bus and a LIN bus.

3. The automotive product testing system according to claim 1, characterized in that: The host computer is connected to the simulation controller via an RS485 communication module.

4. The automotive product testing system according to claim 1, characterized in that: The simulation controller adopts a programmable logic controller (PLC), and the PLC includes an input and output control module, and the input and output control modules are respectively connected to the host computer and the product to be tested.

5. The automotive product testing system according to claim 1, characterized in that: The product information reading device includes a barcode scanner and a QR code, wherein the QR code is configured on the product to be tested, and the barcode scanner is connected to the host computer.

6. The automotive product testing system according to claim 1, characterized in that: The product information reading device includes an RFID reader and an RFID electronic tag. The RFID electronic tag is configured on the product to be tested, and the RFID reader is connected to the host computer.

7. The automotive product testing system according to claim 1, characterized in that: The system further comprises a test indicator light, which is connected to the host computer and is used for displaying the test status in real time.

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