A motorized wheelchair includes left and right drive wheels, left and right motors, rate-of-turn sensor, first and second speed sensors, and controller arranged to combine signals from the sensors in a manner that detects drift. Alternatively, the motorized wheelchair includes left and right drive wheels, left and right motors, first and second rate-of- turn sensors, and controller arranged to combine signals from the sensors in a manner that compensates for voltage offset errors. In another arrangement, the motorized wheelchair includes left and right drive wheels, left and right motors, first and second rate-of-turn sensors, input device, and controller arranged to combine signals from the sensors and input device in a manner that controls the motors using an integrated turn rate error. Several methods for controlling each wheelchair configuration are also provided. These methods process signals associated with desired, expected, or actual turn rate to determine if the wheelchair is off course.


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    Title :

    Motorized wheelchair


    Additional title:

    Motorisierter Rollstuhl
    Fauteuil roulant motorisé


    Contributors:

    Publication date :

    2016-10-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / A61G TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS , Transport, persönliche Beförderungsmittel, oder Lagerung besonders ausgebildet für Kranke oder Behinderte / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



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