The Inductive Load Based Vehicle Body Network Control System
|School||Harbin Institute of Technology|
|Course||Computer Science and Technology|
|Keywords||Vehicle body network control system LIN bus Anti-pinch of electric window Telecontrol lock KEELOQ algorithm|
Development of automobile technology more and more embodies in the field of the automobile electronic. But the traditional technology of automobile electronic is only limited to some mechanical spare components electro-control in the automobile, which is simple comparatively. And the relevant equipment is huger. This technology is comparatively backward. According to the need that the actual application of automobile is changeful, the modern technology of automobile electronic is represented by controlling the integrated performance of automobile optimally and synthetically, by utilizing the technology of computer, network communication based on network and control which are developed at full speed. The modern technology of automobile electronic has already changed to integrated electronical, intelligent, module of integrated automobile. The bus-based controller network technology is a new development direction of the technology of an automobile electronic.We put emphasis on research and development on the door and window control system of automobile network control system based on the CAN / LIN bus.We introduce the design principles and system architecture of the door and window control system, and elaborates on the software and hardware design and development process of the door and window control system, and the implement of the LIN bus protocol. It discusses the hardware module structure of the door and window control system in detail, and describes the software development process of the control system. In the left node module of the door, a telecontrol lock receiver module is designed, which has functions of telecontrol unlocking and locking. And it introduces the improved KEELOQ algorithm using software, which is used to coding and decoding. The thesis brings forwards a solution of anti-pinch of electric window by testing and analyzing the structure of the electrical characteristics of the windows. The solution is the design of anti-pinch of electric window based on the threshold of automatic configuration. Finally, we prove the reliability of the system design from the perspective of anti-electromagnetic interference. We discuss it from the aspects of software and hardware design.The MCU of the design is MC9S08AW16 which is high performance 8-bit microcontrollers from Freescale Company. It can send and receive the LIN message by SCI communication.And we introduce the reason why we select it and the feathers and functions of the chip, and it provides the flow chart of the main progress. The test results prove that the automobile door and window control system is working at good performance.