Systems for precise control of wiper
AssigneeRosemount Aerospace Inc.
InventorsMuralidhar Rao Bojjanapalli, Alexander N. Reid
Life of this patent
Estimating the term…
Abstract
A system includes 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, a tracer operatively connected to a distal end of the wiper drive shaft configured to mimic movement of the wiper arm, and one or more position indicators disposed proximate a distal end of the tracer corresponding to at least the start position and the end sweep position, where the distal end of the tracer configured interact with the one or more limiters during operation of the wiper arm.
Claims20
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;
- a tracer operatively connected to a distal end of the wiper drive shaft configured to mimic movement of the wiper arm;
- one or more position indicators disposed proximate a distal end of the tracer corresponding to at least the start position and the end sweep position, the distal end of the tracer configured to interact with the one or more position indicators during operation of the wiper arm, wherein the tracer and the one or more position indicators are in electronic communication with one another to generate wiper arm position data used to direct movement of the wiper arm between the start position and the end sweep position;
- and
- a controller operatively connected to the one or more position indicators to receive the wiper arm position data therefrom, the controller configured control movement of the wiper arm to prevent the wiper arm from sweeping beyond the start position and the end sweep position during operation of the wiper arm based at least in part on the wiper arm position data.
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;
- a tracer operatively connected to a distal end of the wiper drive shaft configured to mimic movement of the wiper arm;
- one or more position limiters disposed proximate a distal end of the tracer corresponding to at least the start position and the end sweep position, the distal end of the tracer configured to interact with the one or more position indicators during operation of the wiper arm, wherein the tracer and the one or more position indicators limiters are in electronic communication with one another to generate wiper arm position data used to direct movement of the wiper arm between the start position and the end sweep position;
- and
- a controller operatively connected to the one or more position limiters to receive the wiper arm position data therefrom, the controller configured control movement of the wiper arm to prevent the wiper arm from sweeping beyond the start position and the end sweep position during operation of the wiper arm based at least in part on the wiper arm position data.
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:
- receiving wiper arm position data from one or more position indicators in communication with a tracer, wherein the tracer and the one or more position indicators are in electronic communication with one another to generate wiper arm position data used to direct movement of the wiper arm between a start position and an end sweep position;
- and
- controlling movement of a wiper arm based at least in part on a position of the tracer operatively connected to the wiper arm relative to the one or more position indicators such that total displacement of the wiper arm is confined to a predetermined sweep zone defined by the one or more position limiters.
Dependencies are inferred from the claim text.