Hybrid drive for a motor vehicle

Details Hybrid drive for a motor vehicle Hybrid drive for a motor vehicle

1992-12-22

1994-08-16

Johnson, Brian L.

Motor vehicles

Power

Electric

180 657, 477 4, 477 5, B60K 602

Patent

active

053378482

ABSTRACT:
In a hybrid drive for a motor vehicle, a three-phase machine fed by a three-phase converter is coupled via the layshaft of the gearbox to a conventional internal-combustion engine drive train. Both the internal combustion engine and the three-phase machine can be of conventional design. In addition to the known operating modes of a hybrid drive, the three-phase machine serves as a synchronization aid for the gear change in that the layshaft is accelerated in a suitable manner during the shifting operation. As a result, the mechanical synchronization devices in the gearbox have virtually no friction work to perform and can be of correspondingly smaller dimensions.

REFERENCES:
patent: 3297926 (1967-01-01), Campbell et al.
patent: 4335429 (1982-06-01), Kawakatsu
patent: 4533011 (1985-08-01), Heidemeyer et al.
patent: 5067374 (1991-11-01), Sakai et al.
patent: 5117931 (1992-06-01), Nishida
patent: 5195600 (1993-03-01), Dorgan
Swiss Journal: Technische Rundschau No. 46, Nov. 15, 1983, p. 9.

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