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US 2020/0198397 A1Published application
Vehicle with track width learning mode
AssigneeFord Global Technologies, LLC
InventorsScott WILSON, Andrew MONTICELLO
Life of this patent
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Abstract
A vehicle includes an axle having driven wheels each with an associated wheel-speed sensor and the vehicle includes a yaw rate sensor. A controller is programmed to, responsive to a request to reprogram a track width of the driven axle, receive signals from the wheel speed sensors and the yaw rate sensor to learn a track width of the driven axle based on the signals.
Claims20
A vehicle comprising:
- an axle including driven wheels each having an associated wheel-speed sensor;
- a yaw rate sensor;
- and
- a controller programmed to, responsive to a request to reprogram a track width of the driven axle, receive signals from the wheel speed sensors and the yaw rate sensor while the vehicle is moving in a particular manner to learn a track width of the driven axle based on the signals.
1 more element
A vehicle comprising:
- an axle including driven wheels;
- and
- a controller programmed to, responsive to a request to enter track width learning mode:
- calculate a track width of the driven axle derived from wheel speeds of the driven wheels divided by vehicle yaw rate,
- if learning conditions are satisfied during the calculation of the track width, update a rolling average of track widths with the track width, otherwise, discard the track width, and
- responsive to a timer expiring, rewrite a previously stored track width in permanent memory with the rolling average.
3 more elements
A method of learning a track width of a vehicle comprising:
- receiving a request to reprogram a track width of a driven axle;
- responsive to the request, issuing driving instructions to a driver;
- measuring wheel speeds of wheels associated with the driven axle;
- measuring yaw rate of the vehicle;
- and
- calculating a track width of the driven axle based on the measured wheel speeds and the measured yaw rate.
3 more elements
Dependencies are inferred from the claim text.