Drive assistance device for a wheel chair and a wheel chair having a drive assistance device
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United States of America Patent
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Nov 23, 2010
Issued Date -
N/A
app pub date -
Jul 30, 2009
filing date -
Aug 8, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A drive assistance device for a wheel chair having a drive motor, a driving wheel, a sensor means which is designed such that a driving force manually induced into a driving wheel is detected, and a control unit, designed such that the drive motor is controlled to drive the driving wheel in accordance with a drive assistance degree depending on the driving force manually induced into the driving wheel, wherein the control unit comprises an anti-rollback operational mode in which it is adapted to control the drive motor such that an unintended rolling of the driving wheel is avoided. The invention also relates to a wheel chair having such a drive assistance device.
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Family
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