Patent ID: 6053842
Filing Date: 2000-04-25
Classification: B60K,B60W,Y02T,Y10S,Y10T

Abstract:
A drive system for a hybrid drive vehicle, comprising:a driving mechanism including a clutch having power input and output shafts, an engine connected to the power input of said clutch, a first motor for generating power, connected to the power input shaft of said clutch, a second motor for driving a drive wheel, having an input shaft connected to the power output shaft of said clutch, and a transmission having a power input shaft connected to the power output shaft of said clutch, and a power output shaft connected to the drive wheel;a third motor for driving a hydraulic pump of a hydraulic system for said transmission;a battery;a first inverter connected between said first motor and said battery, charging and discharging between said first motor and said battery being made through said first inverter;a second inverter connected between said second motor and said battery, charging and discharging between said second motor and said battery being made through said second inverter;a third inverter connected between said third motor and said battery, changing and discharging between said battery and said motor being made through said third inverter;a first trouble detecting device for detecting trouble in said first motor and in said first inverter;a controller for controlling said engine, said inverters, said transmission and said clutch, said controller being arranged to engage said clutch and to drive said second motor so as to start operation of said engine under firing, in response to the trouble detected by said first trouble detecting device.