This paper introduced the superiorities of electronic pneumatic shift system after using the CAN-bus.It contains the comparison of the structure of the old and new systems,hardware and software design of the new system.%本文介绍了应用CAN总线改造后的客车电控气动换挡系统的优越性.文章内容主要包含新、旧系统的结构比较,新系统的软、硬件设计等.
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