Planetary gear transmission systems or components – With means to vary drive ratio or disconnect drive – Plural elements selectively braked
Patent
1997-09-08
1999-03-09
Marmor, Charles A.
Planetary gear transmission systems or components
With means to vary drive ratio or disconnect drive
Plural elements selectively braked
475271, 475281, 475282, 475296, F16H 344
Patent
active
058792643
ABSTRACT:
A powertrain has a planetary transmission with two simple planetary gearsets interconnected between an input shaft and an output shaft. The planetary gearsets are controlled to establish five forward speed and torque ratios and one reverse speed and torque ratio by selective engagement of three clutches and two brakes.
REFERENCES:
patent: 2873624 (1959-02-01), Simpson
patent: 3946623 (1976-03-01), Murakami et al.
patent: 4627310 (1986-12-01), Coburn
patent: 5342258 (1994-08-01), Egyed
Hebbale Kumaraswamy V.
Raghavan Sekhar
Usoro Patrick Benedict
Estremsky Sherry Lynn
General Motors Corporation
Grove George A.
Marmor Charles A.
Scherer Donald F.
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