Motor vehicles – With means responsive to speed of vehicle for maintaining...
Reexamination Certificate
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
07404465
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.
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patent: 6702051 (2004-03-01), Chu et al.
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patent: 7117967 (2006-10-01), Kidd et al.
Hsieh Shih-Chia
Lin I-Nan
Collado Cynthia F.
Ellis Christopher P.
Kwang Yang Motor Co. Ltd.
Pillsbury Winthrop Shaw & Pittman LLP
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