Research On Automobile Body Control Moudle Based On CAN-bus

This paper introduces briefly the state and development trend of the global automobile electronics technology, compares several types of mainstream vehicle network, studies home the distributed-control system on vehicle of which the electronic devices share information each other through CAN-bus. The body control system of homemade automobile is mostly composed of parts that operate unattached, which is not extendable and less intelligent. To improve the performance of homemade automobile , the paper brings forward a scheme that the central module and four door modules connected with CAN-bus (dual wire,<125 kbps)constitute a distributed-control system based on high level protocol. This system realizes the function about remote control, antitheft, door window lift, inner lamp, exterior lamp, rain wiper and defrost of rear window and rearview mirror;it integrates the body control functions and realizes them by network. Test proves that the body control moudle reachs the design object. This paper presents detailedly the hardware and software of the control system considering the existing technology and the consumption level in the future of domestic automobile. The hardware and software of the control system are illuminated in the paper at lenth. This paper has the use for referrence for our country automobile company to independently develop the automobile CAN-bus and automobile body control system.