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发明公开
CN110749748A 一种点燃式发动机车速测量方法及装置 无效 - 驳回

一种点燃式发动机车速测量方法及装置
摘要：
本发明公开了一种点燃式发动机车速测量方法，包括步骤：S1、将被测车辆驱动轮支起，操控车辆使被测驱动轮旋转；S2、取发动机点火脉冲信号作为频闪灯频闪初始信号，所述频闪灯照射所述被测驱动轮；S3、在所述初始信号的频率基础上调节信号频率使固定记号与活动记号对齐得到频率测量值，所述固定记号标记于车身翼子板边缘，所述活动记号标记于被测驱动轮外径边缘处；S4、由所述频率测量值得到被测驱动轮转速，再由所述被测驱动轮转速得到车速。本发明还公开了点燃式发动机车速测量装置。该车速测量方法及装置结构简单，安装方便简捷，可实现车速的快速测量。
摘要（英）：

The invention discloses a method for measuring the speed of a spark ignition engine. The method comprises the following steps of: 1, supporting a driving wheel of a measured vehicle, and operating thevehicle to rotate the measured driving wheel; 2, taking an engine ignition pulse signal as a stroboscopic initial signal of a stroboscopic lamp, wherein the stroboscopic lamp irradiates the measureddriving wheel; 3, adjusting the signal frequency on the basis of the frequency of the initial signal to align a fixed mark with a movable mark to obtain a frequency measurement value, wherein the fixed mark is marked on the edge of a wing sub-plate of a vehicle body, and the movable mark is marked on the edge of the outer diameter of the measured driving wheel; and 4, obtaining the rotating speedof the measured driving wheel according to the frequency measurement value, and obtaining the speed of the vehicle according to the rotating speed of the measured driving wheel. The invention also discloses a device for measuring the speed of the spark ignition engine. The method and the device for measuring the speed of the spark ignition engine have simple structures, are convenient and simple to install, and can realize quick measurement of the speed of the vehicle.

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