发动机加速操纵系统调试工艺方法研究
2023-04-21卢雪
卢雪
摘 要:汽车加速操纵系统包括机械式和电子式两种。本文研究了重型汽车机械式加速操纵系统的结构与功能,由于该加速操纵系统结构较复杂,导致发动机油门操纵调整具有一定难度。本文根据发动机油门操纵的结构原理,提出了机械式加速操纵系统的调试方法及要求,给出了具体的调试工艺,为汽车加速操纵系统发动机怠速调整、发动机最高转速调整、变矩器开锁转速调整提供了方法支持。本文针对使用过程中出现的故障现象,进行了加速操纵机构常见故障的原因分析,并总结了安装及使用过程中的注意事项。
关键词:发动机 加速操纵系统 调试工艺
Research on Debugging Process Method of Engine Acceleration Control System
Lu Xue
Abstract:Automotive acceleration control systems include mechanical and electronic. In this paper, the structure and function of the mechanical acceleration control system of heavy vehicles are studied, and the engine throttle control adjustment is difficult due to the complex structure of the acceleration control system. According to the structural principle of engine throttle operation, this paper puts forward the debugging methods and requirements of the mechanical acceleration control system, and gives the specific debugging process, which provides method support for the engine idle adjustment, engine maximum speed adjustment, and torque converter unlocking speed adjustment of the automobile acceleration control system. In view of the fault phenomena that occur during use, this paper analyzes the causes of common faults of accelerated control mechanisms, and summarizes the precautions during installation and use.
Key words:engine, acceleration control system, commissioning process
1 概述
汽車加速操纵系统是指驾驶员为操纵汽车运行,调整发动机混合气(或燃油)供给量,以改变发动机输出功率的一套机构[1]。加速操纵系统根据控制方式的不同分为机械式和电子式两种,电子式加速操纵系统无需拉线总成,机械式加速操纵系统需设置加速拉线。电子式加速操纵系统的加速踏板上安装有位移传感器,当驾驶员踩踏加速踏板时,ECU会采集踏板上位移传感器的开度变化以及加速度,根据内置的算法来判断驾驶员的驾驶意图,然后向发动机节气门的控制电机发送相应的控制信号,从而控制发动机的动力输出。机械式加速操纵系统在汽车加速时,驾驶员踩下加速踏板,带动油门轴总成转动,牵引油门拉索,油门拉索与发动机油门摇臂相连,油门拉锁牵引发动机油门摇臂,发动机油门摇臂被油门拉锁牵引后,产生转动,调整供油量,使车辆加速。……
