Multiple-speed automatic transmission for motor vehicles

Details Multiple-speed automatic transmission for motor vehicles Multiple-speed automatic transmission for motor vehicles

1994-03-28

1995-07-25

Marmor, Charles A.

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Plural elements selectively braked

475275, 475279, 475281, F16H 5710

Patent

active

054357926

ABSTRACT:
A multiple-speed transmission for use in an automotive vehicle driveline includes a torque converter, three simple planetary gear units, one-way clutches and brakes, friction clutches, and friction brakes. The engaged and disegaged state of the friction elements permit the transmission to produce several underdrive speed ratios, a direct drive ratio, and several overdrive ratios.

REFERENCES:
patent: 4368649 (1983-01-01), Vahratian et al.
patent: 5069656 (1991-12-01), Sherman
patent: 5129871 (1992-07-01), Sandel et al.
patent: 5230671 (1993-07-01), Michiolca et al.
patent: 5250011 (1993-10-01), Pierce
patent: 5261862 (1993-11-01), Pierce
patent: 5295924 (1994-03-01), Beim

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