柴油机电控系统转速干扰研究

为了实时准确地采集电控柴油机的转速信号 ,以使电控柴油机正常可靠地工作 ,研究了柴油机电控系统的转速采集并解决了干扰问题 .控制系统基于Motorola 68HC11系列 8位单片机为核心的电控单元 ,用汇编语言编程 ,实现了柴油机油量和可变几何截面涡轮增压器的控制 .采用MCU的输入捕捉功能采集脉冲时间从而计算柴油机转速 ,采用时钟溢出中断方法将 2字节的时间扩展为 3字节时间从而解决了低转速采集问题

Speed Disturbance in the Diesel Engine Electronic Control System

In order to sample the speed signal of electronic diesel engine in real time and make the engine work reliable, the diesel engine control system's speed acquisition was studied and the problem of speed disturbance was solved. The control system was based on the 8?bit electronic control unit(ECU) system and the assembly language was used to design the software for controlling the engine fuel quantity and the turbocharger of the variable geometry turbine for the heavy duty diesel engine. By changing the timing method for speed acquisition, the problem of speed disturbance was solved and the reliability of the ECU was improved.