The present invention relates to a vehicle auxiliary steering device comprising a double acting clutch, the device replacing a conventional motor driven power steering (MDPS) system and, more specifically, to a vehicle auxiliary steering device comprising a double acting clutch, the device transmitting power, which is generated from a power generation device rotating in one direction, through the double acting clutch to a handle shaft coupled to a steering wheel and a wheel shaft, so as to assist the direction changing ability of a vehicle, thereby having excellent safety and excellent steerability, which is transmitted to a driver, and operability (handling) of the steering wheel.

A vehicle propulsion system includes an engine including a crankshaft and adapted to generate torque, a crankshaft sensor that outputs a signal that is indicative of a rotary position of the crankshaft, a transmission with a clutch that is connected to the engine to receive the torque from the engine, a drive member connected to the transmission to receive torque from the transmission, and a controller that commands operation of the clutch based upon the signal from the crankshaft sensor for controlling engine compression pulse disturbances as the engine speed changes from an elevated rpm to low or zero rpm as well as low or zero rpm to an elevated rpm.

A vehicle propulsion system includes an engine including a crankshaft and adapted to generate torque, a crankshaft sensor that outputs a signal that is indicative of a rotary position of the crankshaft, a transmission with a clutch that is connected to the engine to receive the torque from the engine, a drive member connected to the transmission to receive torque from the transmission, and a controller that commands operation of the clutch based upon the signal from the crankshaft sensor for controlling engine compression pulse disturbances as the engine speed changes from an elevated rpm to low or zero rpm as well as low or zero rpm to an elevated rpm.