Patent ID: 7121975
Filing Date: 2006-10-17
Classification: B60K,B60L,B60W,F02D,Y02T,Y10T

Abstract:
1. A torque transmission device comprising: a transmission mechanism where a motor generator and an internal combustion engine are coupled and that acts by a torque of the motor generator so that a torque from the internal combustion engine is transmitted to a drive shaft; a detector that detects torque pulsations generated in the torque from the internal combustion engine before the torque pulsations are transmitted to the drive shaft; and a control unit that controls the motor generator to generate a reducing torque of the same phase as the torque pulsations for reducing effects of the detected torque pulsations on the drive shaft, wherein the reducing torque is a value where the torque pulsations detected by the detector are multiplied by a constant determined from two physical quantities representing rotational properties of the motor generator and the internal combustion engine and a physical quantity representing a transmission property of the transmission mechanism.