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.
电子控制单元使电流通过初级绕组直到感知到一个从转速传感器或拾波线圈产生的触发电压脉冲。
2
Electronic control unit. Contains a switching transistor controlled by a speed sensor and is used to open and close the primary circuit.
电子控制单元。包括由转速传感器控制的开关晶体管，用来断开或接通初级电路。
3
The changing load torque is the primary one in all the factors that influence the speedcontrol accuracy.