Patent ID: 7828132

Claim:
An actuator for a clutch in a power driveline of a vehicle, said actuator comprising: a controller; at least one sensor providing a signal from the power driveline to the controller; a power source connected to said controller for providing electrical power to said controller: a motor; a drive train receiving a rotational input from said motor, where movement of said drive train actuates the clutch between engaged and disengaged positions; a holding device for maintaining said drive train stationary at a predetermined position with said clutch disengaged in a first power loss condition; said controller including voltage outputs for powering said motor and said holding device; said controller configured to receive a signal from said at least one sensor indicating a condition of said vehicle being stationary, and said controller configured to prevent power from being supplied to said holding device to maintain said drive train stationary at the predetermined position with said clutch disengaged in said first power loss condition when power is discontinued from said power source; and said controller configured to receive a signal from said at least one sensor indicating a condition of said vehicle moving, and said controller configured to provide power to said holding device to permit said drive train to move to position said clutch in said engaged position when power is discontinued from said power source corresponding to a second power loss condition.