Abstract
This object describes the development of automotive electrical control: With the continuous development of automotive electronics, automotive electronic technology is considered a revolution in the development process. As the number of electronic control units continue to increase, the control unit of the system response time would be affected, thereby enhancing communication between the control unit reliability and lower cost cable has become the urgent need to address the problem. To solve this problem, by using CAN (Controller Area Network) bus built into the network, to connect them.
This object talk about the CAN used in the automotive electronic control applications, including automotive electrical control system, the overall bus network composition, micro-controller access control, bus input / output control, to complete the system hardware design and software design.Meanwhile,to ensure the system to stable,reliable work,this object direct the system works for the car affect the analysis of interference factors.Anti-jamming measures accordingly,anti-jamming design of the hardware and software.This object proposes a reasonable vehicle based on CAN bus electrical control system design, the components of the program AT89C51 microcontroller, CAN controllers, SJA1000 and low-speed transceiver MC33388, MC33989 high-speed transceiver and application of the principle analysis.
This object uses the main issue with a common modular hardware and software design,to complete the mode hardware design and software programming.
Key word：Automobile Electronics Control Unit CAN Bus Node
