Control system for brake-steer assisted parking and method therefor
First Claim
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1. A method of controlling an automotive vehicle having a turning radius comprising:
- determining a steering wheel angle;
determining a steering wheel direction;
determining a steering wheel angular rate andapplying brake-steer as a function of steering wheel angle, steering wheel angular rate and steering wheel direction, wherein the steering wheel direction comprises an increasing direction and a decreasing direction, wherein applying brake-steer comprises applying brake-steer using a first boost curve in a first direction and applying brake-steer using a second boost curve in a second direction, and wherein the first boost curve is different than the second boost curve.
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Abstract
A system and method of controlling an automotive vehicle includes determining a steering wheel angle, determining a steering wheel direction, determining a steering wheel angular rate and applying brake-steer as a function of steering wheel angle, steering wheel angular rate and steering wheel direction.
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Citations
50 Claims
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1. A method of controlling an automotive vehicle having a turning radius comprising:
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determining a steering wheel angle; determining a steering wheel direction; determining a steering wheel angular rate and applying brake-steer as a function of steering wheel angle, steering wheel angular rate and steering wheel direction, wherein the steering wheel direction comprises an increasing direction and a decreasing direction, wherein applying brake-steer comprises applying brake-steer using a first boost curve in a first direction and applying brake-steer using a second boost curve in a second direction, and wherein the first boost curve is different than the second boost curve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling an automotive vehicle comprising:
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detecting a parking mode; in the parking mode, when the steering wheel angle is increasing applying brake-steer using a first boost curve; and when the steering wheel angle is decreasing applying brake-steer using a second boost curve different than the first boost curve. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of controlling an automotive vehicle having a turning radius comprising:
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detecting a parking mode; in the parking mode, applying a first positive torque to a first driven wheel; simultaneously with the step of applying a first positive torque, applying a second positive torque greater than the first positive torque to a second wheel so that the turning radius of the vehicle is reduced; and determining a brake pressure request, and discontinuing the steps of applying a first positive torque and a second positive torque when said request is greater than a predetermined threshold. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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36. A method of controlling an automotive vehicle having a turning radius comprising:
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detecting a parking mode; detecting a transfer case mode; applying brake-steer in response to a parking mode and a transfer case mode, wherein applying brake-steer comprises proportioning front wheel and rear wheel brakes based on the transfer case mode. - View Dependent Claims (37, 38, 39, 40, 41, 42)
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43. A vehicle comprising:
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a traction control system; means to determine a parking mode; and a controller coupled to the means to determine a parking mode, said controller programmed to, in the parking mode, apply a first positive torque, as a function of said traction control system, to a first driven wheel and simultaneously with applying the first positive torque, apply a second positive torque greater than the first positive torque to a second wheel so that the turning radius of the vehicle is reduced. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
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Specification