The trigger wheel rotates with engine RPMs and causes the speed sensor, or pickup oil, to produce triggering voltage pulses that correspond to engine speed and piston position. 觸發(fā)葉輪隨發(fā)動(dòng)機轉速而旋轉，使得轉速傳感器或拾波線(xiàn)圈產(chǎn)生與發(fā)動(dòng)機轉速和活塞位置相對應的觸發(fā)電壓脈沖。
The electronic control unit allows current to flow through the ignition coil primary winding until it senses a triggering voltage pulse from the speed sensor, or pickup coil. 電子控制單元使電流通過(guò)初級繞組直到感知到一個(gè)從轉速傳感器或拾波線(xiàn)圈產(chǎn)生的觸發(fā)電壓脈沖。
