Motor vehicles – Steering by driving – Independently operable drive motors
Patent
1994-07-28
1996-09-17
Boehler, Anne Marie
Motor vehicles
Steering by driving
Independently operable drive motors
180 658, 180907, 36442401, B62D 1104
Patent
active
055559492
ABSTRACT:
An electrically operable wheelchair includes a pair of support wheels coupled with a pair of drive motors, one of a plurality of different types of user-operable input devices, and a controller responsive to input signals from the input devices for controlling the operation of the motors and thereby the movements of the wheelchair. The input devices include, for example, a proportional control joy stick and sets of one, two, three or four switches, and are operable for producing different types of input signals characteristic of the corresponding devices and representative of desired wheelchair movements. The controller is operable to respond to the different types of input signals provided by the devices for producing outputs to the motors for effecting the desired wheelchair movements.
REFERENCES:
patent: 3965402 (1976-06-01), Mogle
patent: 4059786 (1977-11-01), Jones
patent: 4078627 (1978-03-01), Brown
patent: 4207959 (1980-06-01), Youdin
patent: 4387325 (1983-06-01), Klimo
patent: 4913257 (1990-04-01), Janssen
patent: 5033000 (1991-07-01), Littlejohn
Scholl Susan O.
Stallard Caskel A.
Boehler Anne Marie
Cerebral Palsy Research Foundation of Kansas
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