Engine Mount: Description and Operation

Active Control Engine Mount (ACM) System Description

Overview

The active control engine mount (ACM) system reduces the amount of engine vibration (that creates engine noise) which is transmitted to the passenger's compartment.

The ACM system consists of the engine mount actuators, the engine mount control unit, and the powertrain control module (PCM).

The PCM sends the crankshaft position (CKP) sensor information and camshaft position (CMP) sensor information to the engine mount control unit. The engine mount control unit uses this information to predict the amount of vibration created by the engine.

The engine mount control unit operates the plunger by the actuator; this changes the firmness of the engine mount to decrease the amount of engine vibration.






Engine Mount Control Unit 16P Connector