多周期同步测频法车速测量系统开发  

The Speed Measurement System Based on the Synchronous Multi-cycle Frequency Mea-surement

作　　者：陈凌峰[1] 卢青春[1] 魏红军[1] 聂圣芳[1] 

机构地区：[1]清华大学汽车工程系,北京100084

出　　处：《微计算机信息》2009年第8期273-274,266,共3页Control & Automation

摘　　要：本文利用多周期同步测频法开发车速测量系统。文章分析了传统测频方法存在的问题、采用多周期同步测频法实现整个测频范围内的等精度测量的原理、以及提高测量精度的方法,给出基于该方法的车速测量系统的软、硬件实现方式,并利用该系统进行实际测试。实验结果表明,该系统具有测量精度高、测量范围大、抗干扰性强等优点,适用于整车测试。In this paper, I design a speed measurement system based on the synchronous multi-cycle frequency measurement. Since there are some limitations with the traditional method, the paper analyzes how to realize the same precision in the entire survey scope and how to improve the measurement accuracy with the synchronous multi-cycle frequency measurement. The designing and the test experiment of the speed measurement system are offered. The result shows that the system runs well in high accuracy, wide scope, anti-interfering and is applicable to the speed measurement in Vehicle.

关 键 词：多周期同步测频法 车速测量 单片机 

分 类 号：TM935.1[电气工程—电力电子与电力传动]