Soft-stop braking control
AssigneeKelsey-Hayes Company
InventorsDouglas Osborn, James Techentin
Life of this patent
Estimating the term…
Abstract
A method is provided for applying a soft-stop control to the vehicle brake actuators of a vehicle during a vehicle stop operation. A brake apply operation is detected. A determination is made whether the vehicle speed is below a first threshold stopping speed. Braking pressure to the vehicle actuators is reduced as a function of vehicle speed, vehicle deceleration, and brake apply pressure if the vehicle speed is below the first threshold stopping speed.
Claims20
A method for applying a soft-stop control to the vehicle brake actuators of a vehicle during a vehicle stop operation, said method comprising the steps of:
- detecting a brake apply operation;
- determining if the vehicle speed is below a first threshold stopping speed;
- and
- reducing braking pressure to said vehicle brake actuators as a function of vehicle speed, vehicle deceleration, and brake apply pressure if said vehicle speed is below said first threshold stopping speed.
A method for applying a soft-stop control to the vehicle brake actuators of a vehicle during a vehicle stop operation, said method comprising the steps of:
- detecting a brake apply operation by a driver in response to a master cylinder pressure being above a predetermined braking rate threshold;
- determining that a secondary brake operation is inactive;
- determining that a vehicle speed is between a first threshold stopping speed and a second threshold stopping speed;
- and
- reducing brake pressure to said vehicle brake actuators as a function of said master cylinder pressure, said vehicle speed, and a vehicle deceleration if said secondary brake operation is inactive and said vehicle speed is between said first and second threshold stopping speed.
A method for applying a soft-stop control to the vehicle brake actuators of a vehicle during a vehicle stop operation, said method comprising the steps of:
- detecting a brake apply operation by an activation of a brake switch;
- determining that a secondary brake operation is inactive;
- determining that a vehicle speed is between a first threshold stopping speed and a second threshold stopping speed;
- and
- reducing brake pressure to said vehicle brake actuators as a function of said master cylinder pressure, said vehicle speed, and a vehicle deceleration if said secondary brake operation is inactive and said vehicle speed is between said first and second threshold stopping speed.
A method for applying a soft-stop control to the vehicle brake actuators of a vehicle during a vehicle stop operation, said method comprising the steps of:
- detecting a brake apply operation by sensing a travel of a brake pedal greater than a predetermined brake pedal travel threshold;
- determining that a secondary brake operation is inactive;
- determining that a vehicle speed is between a first threshold stopping speed and a second threshold stopping speed;
- and
- reducing brake pressure to said vehicle brake actuators as a function of said master cylinder pressure, said vehicle speed, and a vehicle deceleration if said secondary brake operation is inactive and said vehicle speed is between said first and second threshold stopping speed.
Dependencies are inferred from the claim text.