基于单片机的汽车发动机转速表驱动信号源设计

The Design of the Tachometer for Vehicle Signal Generator Based on Chip-Microcomputer

基于单片机的汽车发动机转速表驱动信号源设计,阐述了汽车发动机转速表测速原理、汽车发动机转速信号的产生过程,被检测车测得发动机转速表驱动信号的具体参数,采用STM32单片机设计制作出了驱动转速表的样机。经实验验证,该转速表驱动信号源可平顺稳定地驱动各系列发动机转速表转动,为汽车维修与检测提供了一个方便实用的工具。

This paper introduces the design of the tachometer for vehicle signal generator based on embed- ded microcontroller.We introduce the working principle of the tachometer for vehicle and analyze Engine RPM signal generation process. The specific parameters of the engine tachometer drive signal measured. Prototype machine is developed and the experiment was done.Theoretic analysis and experiment of proto- type show that this signal generator is feasible.