초록 ▼

A hybrid electric vehicle 10 having a propulsion system 12 which includes an internal combustion engine 14, a generator/motor 16 and an electric motor or a "traction inverter module" 18 which cooperatively provide power to the drive train 28 of vehicle 10. Vehicle 10 includes a controller 44 which i

A hybrid electric vehicle 10 having a propulsion system 12 which includes an internal combustion engine 14, a generator/motor 16 and an electric motor or a "traction inverter module" 18 which cooperatively provide power to the drive train 28 of vehicle 10. Vehicle 10 includes a controller 44 which is effective to detect whether any faults are present within any of the torque providing subsystems (e.g., in engine 14, generator/motor 16 and/or motor 18), and if one or more faults is. present, to provide a limited operation strategy which allows the vehicle to be driveable by use of the remaining operational subsystem(s).

대표청구항 ▼

1. A method for limited operation of a hybrid electric vehicle of the type having an engine, a generator and a motor which are cooperatively coupled to and selectively provide torque to a drive line, said method comprising the steps of:providing a controller which is effective to monitor said engine

1. A method for limited operation of a hybrid electric vehicle of the type having an engine, a generator and a motor which are cooperatively coupled to and selectively provide torque to a drive line, said method comprising the steps of:providing a controller which is effective to monitor said engine, said generator and said motor, and to selectively and controllably operate said vehicle by use of said engine, said generator and said motor; determining whether a fault exists within said engine; and causing said controller to operate in an LOS-electric drive mode if a fault exists within said engine, said controller being effective, while in said LOS-electric drive mode, to selectively operate said vehicle by use of only said motor and said generator.