Electrically biased starting reaction device for a power transmi

Details Electrically biased starting reaction device for a power transmi Electrically biased starting reaction device for a power transmi

1992-04-17

1993-11-02

Pellinen, A. D.

Prime-mover dynamo plants

Electric control

Traction

290 20, 290 29, 180 652, 180 654, F16H 3700, F16H 3706

Patent

active

052586510

ABSTRACT:
A planetary gear arrangement, which provides a starting device for a power transmission, has an electrically biased reaction member. The reaction member is operatively connected with an electric motor/generator that is selectively controlled to establish a braking force at the reaction member. A fluid operated friction brake is disposed in parallel with the motor/generator to provide a selective fully engaged brake to establish the reaction, or a slipping brake to assist the generator in establishing the reaction at the planetary gear arrangement. A fluid operated clutch is also associated with the planetary gear arrangement to provide a selective 1:1 ratio within the planetary gear arrangement. The planetary gear arrangement cooperates with the park mechanism in the transmission and the motor/generator to provide an engine cranking mechanism which is useful during engine start.

REFERENCES:
patent: 1762004 (1930-06-01), Wellman
patent: 3620323 (1971-11-01), Maeda et al.
patent: 3732751 (1973-05-01), Berman et al.
patent: 5120282 (1992-06-01), Fjalstrom

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