Motor vehicles – Special wheel base – Rider propulsion with additional source of power – e.g.,...
Patent
1997-08-01
1999-12-21
Oberleitner, Robert J.
Motor vehicles
Special wheel base
Rider propulsion with additional source of power, e.g.,...
180 658, B62K 1100
Patent
active
060036273
ABSTRACT:
Manual driving force applied by a wheelchair driver to a motor-driven wheelchair is sensed by a manual-driving-force sensing unit. When the manual driving force reaches a preset value, a control unit makes a motor generate a mechanical driving force supplementary to the manual driving force. The control unit subtracts the preset value from the manual driving force to determine an amount of change by which the current mechanical driving force should be changed, and adds the amount of change to the current mechanical driving force to develop a new mechanical driving force.
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Nabco Limited
Oberleitner Robert J.
Yeagley Daniel
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