Power wheelchair with transmission using multiple motors per dri

Details Power wheelchair with transmission using multiple motors per dri Power wheelchair with transmission using multiple motors per dri

1991-10-25

1993-10-19

Hill, Mitchell J.

Motor vehicles

Power

Electric

180 656, 180 658, 180 696, 180907, 74661, 474 85, B60K 102

Patent

active

052537242

ABSTRACT:
A powered wheelchair 50 comprises a frame 52 and two independently rotatable drive wheels 54 and 56 mounted to the frame 12. Two motors 62 and 64 are coupled via coupler 70 to the drive wheel 54 such that the motors 62 and 64 drive the drive wheel 54 in different speed ranges. Two motors 66 and 68 are coupled via coupler 80 to drive the drive wheel 56 such that the motors 66 and 68 drive the drive wheel 56 in different speed ranges. Various control systems, including a microprocessor based control system 190, may be employed to control the motors 62, 64, 66, and 68.

REFERENCES:
patent: 2993550 (1961-07-01), Klappert
patent: 3142202 (1964-07-01), Muhlbeyer
patent: 3566714 (1971-03-01), Borello
patent: 3570620 (1971-03-01), Fisher
patent: 4270622 (1981-06-01), Travis
patent: 4298082 (1981-11-01), Ramos
patent: 4415049 (1983-11-01), Wereb
patent: 4452327 (1984-06-01), Mowat et al.
patent: 4481841 (1984-11-01), Abthoff et al.
patent: 4674584 (1987-06-01), Watkins

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