Concentric powertrain for electric vehicle

Details Concentric powertrain for electric vehicle Concentric powertrain for electric vehicle

1981-09-08

1984-10-30

Braun, Leslie A.

Machine element or mechanism

Elements

Gear casings

747205, 74768, 74789, F16H 3708, F16H 3706, F16H 5710, F16H 344

Patent

active

044794045

ABSTRACT:
The powertrain of a motor vehicle driven by an electric motor has three interconnected planetary gear sets having an input through the sun gear of the first planetary set and output through the carrier of the third planetary gear set to a transaxle differential. Brakes and clutches operating in conjunction with the ring gear of the first planetary set and carriers of the second and third planetary sets provide two speed ratios. For reverse drive the same brakes are applied as in the first gear ratio and the motor is driven in reverse.

REFERENCES:
patent: 3106107 (1963-10-01), Hardy
patent: 3195371 (1965-07-01), Christie
patent: 3250150 (1966-05-01), Stockton
patent: 3255643 (1966-06-01), Hause
patent: 3410157 (1968-11-01), Livezey
patent: 3491621 (1970-01-01), Moan
patent: 3688600 (1972-09-01), Leonard
patent: 3722323 (1973-03-01), Welch
patent: 3770074 (1973-11-01), Sherman
patent: 3800626 (1974-04-01), Koivunen
patent: 3971267 (1976-07-01), Murakami et al.
patent: 3986413 (1976-10-01), Stockton
patent: 4304153 (1981-12-01), Moroto et al.

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