Patent ID: 6938713
Filing Date: 2005-09-06
Classification: B60K,B60L,B60W,F02N,Y02T

Abstract:
1. A motor generator system having an internal combustion engine for a driving source of a car and a battery device 10 as power supply and mounted on a hybrid car, said system comprising: a motor generator mechanically connected with a crank shaft of the internal combustion engine; an inverter for controlling said motor generator; a control circuit for controlling said inverter; and a voltage control circuit provided between said battery device and said inverter; wherein said motor generator generates a driving force by receiving a power supplied from said battery device through said inverter; said motor generator generates power by receiving a motive power from the internal combustion engine, and said motor generator supplies said generated power to said battery device through said inverter; said inverter controls a drive of said motor generator and a power generation of said motor generator by receiving a command from said control circuit; and wherein when said motor generator generates said generated power by receiving the motive power from the internal combustion engine, and when said motor generator supplies said generated power to said battery device through said inverter, said voltage control circuit steps down a power generation voltage of said motor generator to form said generated power voltage of said motor generator to reach a charging voltage of said battery device.