Motor vehicles – Steering by driving – Independently operable drive motors
Patent
1993-11-16
1995-04-25
Hill, Mitchell J.
Motor vehicles
Steering by driving
Independently operable drive motors
180 651, 180333, 180907, 359144, 385147, B62D 1104, A61G 504
Patent
active
054090741
ABSTRACT:
A motorized vehicle, particularly a wheelchair, having a joystick controller for controlling energization of driving motors which in turn drive vehicle wheels and control steering of the vehicle. The joystick controller includes fiber-optic arrangements which sense tilting movement of the joystick in forward, rearward, rightward or leftward directions, or a combination thereof. Light signals are generated of an intensity corresponding to the position of the joystick, which signals are converted into electric signals and supplied to a controller which in turn controls energization of the drive motors to control driving and steering of the vehicle.
REFERENCES:
patent: 3814199 (1974-06-01), Jones
patent: 3934181 (1976-01-01), Rosenthal
patent: 4306314 (1981-12-01), Griffiths
patent: 5234066 (1993-08-01), Ahsing et al.
Bakker Philip J.
Bowman Anthony L.
Eide John
Hawks David R.
Miller Michael B.
Haworth Inc.
Hill Mitchell J.
Litton Systems Inc.
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