The widely used schemes of interfaces between metro traction system and metro braking system are intro-duced,some improvement suggestions like hard wire inter-face optimization are proposed to enhance the reliability of the whole train operation.%介绍了常用的地铁牵引系统与制动系统的接口方案,建议采用增加硬线接口的优化方式,提高整车使用的可靠性。
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