Hybrid drive system for motor vehicle

Details Hybrid drive system for motor vehicle Hybrid drive system for motor vehicle

1996-10-09

2000-08-08

Mar, Michael

Motor vehicles

Power

Electric

180 658, 318376, 701 55, B60K 604

Patent

active

060987332

ABSTRACT:
A hybrid vehicle drive system including an engine, an electric motor operated by an electric energy stored in a storage device charged by operation of the engine, and a controller for selecting a low-load drive mode for driving the vehicle by the electric motor when the vehicle running condition is in a predetermined low-load range, and a high-load drive mode for driving the vehicle by the engine when the running condition is in a predetermined high-load range in which a load acting on the hybrid drive device is higher than that in the low-load range, and wherein the controller includes an emergency drive control device operated in the event of a failure of the first and second drive power sources, for operating the other, normal drive power source to drive the motor vehicle, and a range changing device for changing one of the low-load and high-load ranges which corresponds to the normal drive power source when the normal drive power source is operated by the emergency drive control device.

REFERENCES:
patent: 4335429 (1982-06-01), Kawakatsu
patent: 4470476 (1984-09-01), Hunt
patent: 5343970 (1994-09-01), Severinsky
patent: 5346031 (1994-09-01), Gardner
patent: 5558175 (1996-09-01), Sherman
patent: 5656921 (1997-08-01), Farrall
patent: 5697466 (1997-12-01), Moroto et al.
Patent Abstracts of Japan, vol. 95, No. 003, JP-A-07 067208, Mar. 10, 1995.

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