Patent ID: 6520879
Filing Date: 2003-02-18
Classification: B60K,B60W,Y02T,Y10S

Abstract:
A power transmission apparatus which can output at least a part of power output by a prime mover to a drive shaft in a mechanical form, comprising:a prime mover adjuster for adjusting a state of the power output from said prime mover; a power generator connected to said prime mover in such a manner as to be capable of electrically generating at least a part of the power output from said prime mover; an electric motor connected between an output shaft of said prime mover and said drive shaft and capable of forwardly rotating so as to rotate said drive shaft in the same direction as a rotation direction of said output shaft and reversely rotating so as to rotate said drive shaft in a reverse direction to the rotation direction of said output shaft; and a controller rotatively driving said electric motor in the reverse direction to that of the output shaft of said prime mover using an energy regenerated by said power generator and controlling said prime mover adjuster so as to control a state where at least a part of the power is output from the prime mover to the drive shaft and a state of the power output from said prime mover to an amount lower than that in the case of forwardly rotating said drive shaft, at a time of reversely rotating said drive shaft.