Tire side slip angle control for an automotive vehicle using steering actuators
AssigneeFord Global Technologies, LLC
InventorsKeith Glenn Mattson, Todd Allen Brown
Life of this patent
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Abstract
A stability control system (24) for an automotive vehicle includes a plurality of sensors sensing the dynamic conditions of the vehicle. The controller (26) is coupled to the sensors. The controller (26) determines a road surface coefficient of friction, calculates a maximum slip angle based on the road surface coefficient of friction, determines a calculated side slip angle in response to measured dynamic vehicle conditions, and reduces a steering wheel actuator angle when the calculated side slip angle is greater than the maximum slip angle.
Claims20
A control system for an automotive vehicle having a steering actuator comprising:
- a plurality of sensors generating a plurality of signals corresponding to measured dynamic vehicle conditions;
- and
- a controller coupled to the plurality of sensors, said controller determines a road surface coefficient of friction, calculates a maximum permissible slip angle based on the road surface coefficient of friction, determines a calculated side slip angle in response to measured dynamic vehicle conditions, and reduces a steering wheel actuator angle when the calculated side slip angle is greater than the maximum slip angle.
A method of controlling a vehicle having a steering actuator comprising:
- determining a road surface coefficient of friction;
- calculating a maximum permissible slip angle based on the road surface coefficient of friction;
- determining a calculated side slip angle in response to measured dynamic vehicle conditions;
- and
- reducing a steering wheel actuator angle when the calculated side slip angle is greater than the maximum permissible slip angle.
A method of controlling a vehicle having a steering actuator comprising:
- determining a road surface coefficient of friction;
- calculating a maximum permissible slip angle and a peak slip angle based on the road surface coefficient of friction;
- determining a calculated side slip angle in response to measured vehicle conditions;
- and
- controlling a steering wheel actuator angle to maintain the calculated side slip angle between the peak side slip angle and the maximum permissible slip angle.
Dependencies are inferred from the claim text.