Car CAN bus module fully-automatic detection system and method based on PCI board card

Abstract

The invention relates to a car CAN bus module fully-automatic detection system and method based on a PCI board card. The system comprises a switching value input unit, a switching value output unit, an analog quantity output unit, a pulsed quantity processing unit, a CAN message control unit and a central processing unit of an IPC. The switching value input unit is used for detecting a level state of a switching value output pin of a CAN bus control module. The switching value output unit is used for providing an input state for a switching value input pin of the CAN bus control module. The analog quantity output unit is used for providing different resistance signals of different resistance values for an analog quantity input pin of the CAN bus control module. The pulsed quantity unit is used for providing a vehicle speed signal and a rotation speed signal for the CAN bus control module. The CAN message control unit is used for receiving a CAN message control order sent by the central processing unit of the IPC. The central processing unit of the IPC is responsible for coordination and processing of the whole system. The car CAN bus module fully-automatic detection system and method based on the PCI board card can be used for detecting CAN bus modules of different types.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a PCI board-based automatic detection system and detection method for an automobile CAN bus module. Background technique [0002] In recent years, my country's automotive electronics industry has developed rapidly, and many domestic automotive electronics companies have developed their own automotive CAN (Serial Multi-Master Controller Area Network) bus products. It mainly includes CAN bus control module, CAN bus combination instrument, CAN bus vehicle driving recorder, etc. These CAN bus products all have the functions of receiving and sending CAN messages. They can not only obtain information from the CAN bus at any time, but also form the status information collected by themselves into CAN messages and publish them to the CAN bus for the CAN bus. used by other modules. This simple and effective interactive method quickly won the favor of various OEMs, which promoted the ...

AI Technical Summary

Problems solved by technology

[0004] 1. The inspector needs to constantly flip the switch to observe the light bulb on and off, which is quite time-consuming and the detection efficiency is low;

[0005] 2. For each CAN bus product, there must be a matching testing platform. The testing equipment is not universal and the cost is high;

[0006] 3. Only relying on human testing makes the quality of product testing closely related to the ability level of testing personnel, so it is difficult to ensure the standardization and normalization of the testing process

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