Method for controlling a hybrid drive which drives a vehicle

Details Method for controlling a hybrid drive which drives a vehicle Method for controlling a hybrid drive which drives a vehicle

1993-04-28

1994-07-12

Focarino, Margaret A.

Motor vehicles

Power

Electric

180 654, 290 45, 290 50, B60K 604

Patent

active

053279921

ABSTRACT:
A method for controlling a hybrid drive consisting of an internal combustion engine and at least one electric motor which can be driven via an electrical energy source, in which the electric motor can be operated as a generator when required. In order to reduce the fuel consumption and the emission of noxious substances of the internal combustion engine in those operating ranges in which the torque to be output by the internal combustion engine to overcome the instantaneous tractive resistances lies below a torque corresponding to ideal operation of the internal combustion engine with respect to efficiency and/or exhaust gas behavior, the internal combustion engine is operated essentially with the torque corresponding to ideal operation. The differential torque between the torque corresponding to ideal operation and the torque to be output by the internal combustion engine to overcome the instantaneous tractive resistances is used to drive the electric motor which is switched as a generator.

REFERENCES:
patent: 3791473 (1974-02-01), Rosen
patent: 4021677 (1977-05-01), Rosen et al.
patent: 4305254 (1981-12-01), Kawakatsu et al.
patent: 4335429 (1982-06-01), Kawakatsu
patent: 4407132 (1983-10-01), Kawakatsu et al.
patent: 5081365 (1992-01-01), Field et al.
patent: 5117931 (1992-06-01), Nishida

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