Car Window Switch Module Design And Development Based On LIN Bus

With the rapid development of automobile electronic technology, more and moreelectronic products are applied to the motor controller，the use of electronic products greatlyincreased the comfort of the vehicle, security, real time, etc. In this paper, we study thewindow switch of the module at the same time on the body control module BCM blocks needto research and analysis，Because of the internal control mode in today’s cars tend to bemodular, integration and are controlled by the body control module. LIN bus window switchand body control module BCM from the relationship between the master node，LIN buswindow switch and body control module BCM establishing normal relations ofcommunication.Paper use CAN/LIN bus body control system of basic topology structure asthe research’s entrance， Analyzed and demonstrate the system hardware design, parameter,control procedures and problems. Design window intelligent module has door lock, windowcontrol and self protection function, working state feedback, etc. According to thedevelopment of the automobile body electronic process design the control software of theswitch nod,. The LIN bus window module has been installed to Huang Qishengcar，debugging and the related experimental work. Not only meet the requirements of the carwindow control function, reduces the cost, give the multifarious wiring harness, maintenanceeasy, but also realizes the auto control unit and auto control system of intelligent net work.We design the practical of LIN bus window switch module, on the functional design not onlyincludes the function of the traditional window switch completely, and increase the capacityof the switch module working status report; In the design of hardware and software switchmodule reliability combined with development of low cost, make its mechanical structure,circuit system and the software programming, practical application proves that the switchmodule has the advantages of low cost, easy to maintain, has the certain development value.