Control of brake-and steer-by-wire systems during brake failure
First Claim
1. A method of selectively inhibiting wheel rotation of a vehicle during brake failure, the method comprising:
- determining a brake force lost corresponding to a failed brake;
determining a brake force reserve corresponding to at least one non-failed brake;
determining at least one command brake force based on the brake force lost and the brake force reserve; and
applying the at least one command brake force to the at least one non-failed brake wherein at least one of an undesired yaw moment and a yaw moment rate of change are limited to predetermined values.
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Accused Products
Abstract
A method, computer usable medium including a program, and a system for braking a vehicle during brake failure. The method and computer usable medium include the steps of determining a brake force lost corresponding to a failed brake, and determining a brake force reserve corresponding to at least one non-failed brake. At least one command brake force is determined based on the brake force lost and the brake force reserve. The at least one command brake force is applied to the at least one non-failed brake wherein at least one of an undesired yaw moment and a yaw moment rate of change are limited to predetermined values. The system includes a plurality of brake assemblies wherein a command brake force is applied to at least one non-failed brake.
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Citations
21 Claims
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1. A method of selectively inhibiting wheel rotation of a vehicle during brake failure, the method comprising:
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determining a brake force lost corresponding to a failed brake;
determining a brake force reserve corresponding to at least one non-failed brake;
determining at least one command brake force based on the brake force lost and the brake force reserve; and
applying the at least one command brake force to the at least one non-failed brake wherein at least one of an undesired yaw moment and a yaw moment rate of change are limited to predetermined values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer usable medium for selectively inhibiting wheel rotation of a vehicle during brake failure, the computer usable medium encoded with a computer program comprising:
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computer readable program code for determining a brake force lost corresponding to a failed brake;
computer readable program code for determining a brake force reserve corresponding to at least one non-failed brake;
computer readable program code for determining at least one command brake force based on the brake force lost and the brake force reserve; and
computer readable program code for applying the at least one command brake force to the at least one non-failed brake wherein at least one of an undesired yaw moment and a yaw moment rate of change are limited to predetermined values. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A vehicle brake system comprising:
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a plurality of brake assemblies for selectively inhibiting wheel rotation of the vehicle wherein a command brake force is applied to at least one non-failed brake; and
a controller operably attached to the brake assemblies, the controller comprising;
means for determining a brake force lost corresponding to a failed brake;
means for determining at brake force reserve corresponding to a non-failed brake; and
means for determining the command brake force based on the brake force lost and the brake force reserve;
wherein at least one of an undesired yaw moment and a yaw moment rate of change are limited to a predetermined value. - View Dependent Claims (21)
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Specification