| With the rapid development of electronic industry, Chinese auto industry hasushered in new peak consumption. A large number of automotive electronicsequipments are used in the automotive sector. Constantly improving the level ofvehicle electronic modular technology, at the same time, provides us with greatercomfort and convenience, but also provides the automobile manufacturer andconsumer with some quality problems. Increasing lines and electrical connectors, onthe vehicle, is becoming a cause concern.This subject of design is from the technology development department of a carindustry. It provides them a professional, efficient in-vehicle CAN bus messagedetection and auto-electrical connector’s performance testing capability. From thepractical point of view, the subject follows the CAN2.0B technical specifications,using TMS320F2812produced by TI Company as the core processor to design andimplement a small-scale simulation system. This system is a multi-functional device,can receive and transport CAN signal, drive a stepper motor rotation, sample andanalysis analog signals. This subject uses CCS3.3development environment assystem firmware designer, and uses Visual Basic6.0development environmentdesigning PC user operating platform. In this paper, the simulation system institutes acomplete solution. It details the working principle of the hardware circuit anddetailed design of system firmware and software. Finally, combined with CANoecomponents, CNC slide, the S-type sensor hardware platform it explains the systemthe debugging test results.Simulation system has passed by the platform test, and it can monitor thevehicle CAN bus signals and detect the car connector’s performance. In actualoperation, the simulation system is stable, reliable, and it achieves the accuracyrequirements. Completion of the subject accumulates experience for the domesticautomotive CAN bus technology and automotive connectors’ performance testing.The subject, therefore, has a good economic prospect value. |
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