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The Design and Research of the Automotive Window Controlling System Based on On-board Bus

Author: FangQing
Tutor: GuoJiChang
School: Tianjin University
Course: Circuits and Systems
Keywords: Body network LIN / CAN bus Window control system Distributed control
CLC: TP273
Type: Master's thesis
Year: 2007
Downloads: 173
Quote: 0
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Abstract


With the development of communication technology and integrated circuits and microprocessors automotive electronics has been widely used in the car , showing a trend of network development , the onboard network technology has become a hotspot of research and application of automotive electronics . Local Interconnect Network LIN ( Local Interconnect Network ) is a network of low - cost car , it is a supplement of the existing variety of automotive network functions . Body control system typically includes a single master module and a plurality of slave modules . The paper designs and implements a leased vehicle window control from the module , the system can achieve windows automatic lifting and error alarm information , the main module and conduct from the modules LIN2.0 protocol communication . Wherein the window control module comprises hardware circuitry and software control algorithm of two parts . The hardware consists of the following : (1) central processing unit : Freescale 68HC908EY16 single-chip microprocessor ; (2) motor drive unit : MC33984 chip motor drive ; (3) switch detection unit : MC33972 detection switch status ; (4) Communication the unit : MC33689LIN conversion chip . The software part of the control program and host communication program . Control program using CodeWarrior software development platform, the window control programming using C language . The host communication procedures LabVIEW8.0 achieve the communication between the main module and the window control module . Finally, in order to extend the application of the system in the body control system , the application of CAN transceiver TJA1050 and controller SJA1000 CAN bus communication . The practical result shows : the system to better meet the design requirements, to effectively play the advantages of distributed control of the LIN network .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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