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US 2012/0067662 A1Published application
Drive assistance device, wheelchair and method for determination of the manual driving force of a wheelchair driver
AssigneeUlrich Alber GmbH
InventorsThomas Birmanns, Ralf Ledda, Bernd Engels, Paul-Gerhard Bitzer
Life of this patent
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Abstract
A drive assistance device for a wheelchair having a drive motor, a running wheel and a sensor device which is adapted to detect a driving force manually induced into the running wheel. A control unit which is adapted to control the drive motor for driving the running wheel depending on a driving force manually induced by the user into the running wheel has a user force determination operational mode in which the maximum force of the user can be determined.
Claims11
A drive assistance device for a wheelchair comprising:
- a drive motor,
- a running wheel,
- a sensor device which is adapted to detect a driving force manually induced into the running wheel;
- and
- a control unit which is adapted to control said drive motor for driving said running wheel depending on a driving force manually induced into the running wheel by a user in accordance with a support level;
- the control unit comprising a user force determination operational mode in which the control unit is adapted to control said drive motor such that, as a reaction to a driving force manually induced into the running wheel, a torque is generated in a direction opposite to an effective direction of the driving force manually induced into the running wheel.
3 more elements
Dependencies are inferred from the claim text.