Cruise control system for electric wheelchair

Details Cruise control system for electric wheelchair Cruise control system for electric wheelchair

2008-07-29

2008-07-29

Ellis, Christopher P. (Department: 3618)

Motor vehicles

With means responsive to speed of vehicle for maintaining...

C180S167000, C180S076000, C180S076000, C180S123000, C180S130000, C180S192000, C180S246000, C180S361000, C180S384000, C180S420000, C180S420000, C180S001002, C180S193000

Reexamination Certificate

active

11354867

ABSTRACT:
A cruise control system for an electric wheelchair includes: a drive unit for driving the electric wheelchair; a user control unit for transmitting user control signals; a controller selectively operable in a normal control mode for controlling the drive unit such that a speed of the electric wheelchair is adjusted in accordance with the user control signals; and a current detecting unit for detecting a load current of the electric wheelchair and outputting a corresponding current signal. The controller has parameter relation information loaded therein, and is further selectively operable in a cruise control mode for controlling the drive unit with reference to the current signal and the parameter relation information to maintain the speed of the electric wheelchair within a desired speed range.

REFERENCES:
patent: 5651422 (1997-07-01), Casali
patent: 6702051 (2004-03-01), Chu et al.
patent: 6766871 (2004-07-01), Sawyer
patent: 6846042 (2005-01-01), Hanson et al.
patent: 6860347 (2005-03-01), Sinclair et al.
patent: 7117967 (2006-10-01), Kidd et al.

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