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车辆运行速度是保障城轨运行安全的重要参数,需满足城轨车辆技术合同要求。目前较为流行的速度测量方法有轮轴脉冲测速、雷达测速和GPS测速,这3种测速方法或结构复杂、价格不菲,或受外界影响较大,测速精度不高。介绍一种通过使用车辆电压型测速传感器实现测量车辆实际运行速度的方法,并对相应信号进行处理。经实际验证,此测量方法简单,测量精度高。
The running speed of the vehicle is an important parameter to ensure the safe operation of the urban rail. The technical requirements of the urban rail vehicle must be met. At present, the most popular speed measurement methods are wheel pulse speed measurement, radar speed measurement and GPS speed measurement. These three speed measurement methods or structures are complex, expensive, or greatly influenced by the outside world, and the speed measurement accuracy is not high. A method of measuring the actual running speed of a vehicle by using a vehicle voltage type velocity sensor is introduced and the corresponding signal is processed. The actual verification, this measurement method is simple, high accuracy.