Electric Controlled Coupling

Operation Principle

Fig 1: Electric Controlled Coupling Torque Flow

Courtesy of NISSAN MOTOR CO., U.S.A.

1. AWD control unit supplies command current to electric controlled coupling (AWD solenoid).
2. Control clutch is engaged by electromagnet and torque is detected in control clutch.
3. The cam operates in response to control clutch torque and applies pressure to main clutch.
4. Main clutch transmits torque to front wheels according to pressing power.
   • Transmission torque to front wheels is determined according to command current.
     Fig 2: Current And Torque Characteristic Graph

     Courtesy of NISSAN MOTOR CO., U.S.A.