Dynamic position feedback for wiper control
AssigneeRosemount Aerospace Inc.
InventorsMuralidhar Rao Bojjanapalli, Raghavendra Venkataramu
Life of this patent
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Abstract
In accordance with at least one aspect of this disclosure, a system include, a wiper arm configured to sweep along a sweep zone defined between a start position and an end sweep position. A wiper drive shaft is operatively connected at a proximal end to the wiper arm to drive the wiper arm between the start position and the end sweep position. At least an angular encoder is operatively connected to a distal end of the wiper drive shaft configured to record an actual position of the wiper arm. A controller is operatively connected to the encoder to receive positon wiper arm position data therefrom.
Claims20
A method, comprising:
- controlling movement of a wiper arm based at least in part on wiper arm position data received from an angular encoder operatively connected to a shaft of the wiper arm such that total displacement of the wiper arm is confined to a predetermined sweep zone defined between a start position and an end sweep position.
A system, comprising,
- a wiper arm configured to sweep along a sweep zone defined between a start position and an end sweep position;
- a wiper drive shaft operatively connected at a proximal end to the wiper arm to drive the wiper arm between the start position and the end sweep position;
- an angular encoder operatively connected to a distal end of the wiper drive shaft configured to record an actual position of the wiper arm;
- and
- a controller operatively connected to the encoder to receive positon wiper arm position data therefrom, the controller configured to, based at least in part on the wiper arm position data:
- control movement of the wiper arm from a park position to the start position,
- control movement of the wiper arm between the start position to the end sweep position, and
- control movement of the wiper arm from a stop position to the park positon.
A non-transitory computer readable medium having computer executable instructions stored therein, the computer executable instructions configured to cause a computer to perform a method, the method comprising:
- controlling movement of a wiper arm based at least in part on wiper arm position data received from an angular encoder operatively connected to the wiper arm such that total displacement of the wiper arm is confined to a predetermined sweep zone.
Dependencies are inferred from the claim text.