汽车电控发动机控制系统的工作原理是什么?

2025-04-06 19:25:13
推荐回答(1个)
回答1:

汽车发动机电脑的工作原理是将热能转化为动能。
汽车发动机电脑是现在电控汽车的核心部分,他的作用简单来讲有两个:
1、接受各个传感器的信号,计算出相应的数据;
2、根据计算出来的数据对汽车发动机的燃油喷射、点火、怠速进气等进行控制,保证发动机的正常运转,并保证发动机排放污染降到最低。
发动机的基本工作原理是将热能转化为动能:
1、首先在外力的作用下(起动机的带动)通过曲轴带动活塞作往复运动,一旦气缸作功,便可以脱离外力自行工作;
2、活塞由上止点向下止点运动时,进气门打开,开始实现进气(汽油车进的是混合气,柴油机进的是纯空气)。
3、活塞由下止点向上止点运动时,进排气门关闭,将刚才的进气进行压缩,并产生高温;
4、在压缩终了时,汽油车的混和气在火花塞的作用下进行点火燃烧、柴油车的高温气体在喷油器的作用下进行喷油而自行燃烧,气缸内的气体在燃烧的作用下急剧膨胀,促使活塞下行;
5、活塞再由下止点向上止点运动时,排气门打开进行排气,并准备下一个循环。

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