Method and system for controlling an anti-lock brake system
First Claim
1. A method for controlling a vehicle anti-lock braking system, the method comprising:
- sensing a wheel speed and generating a corresponding wheel speed signal;
determining a wheel deceleration based on the wheel speed signal;
determining a vehicle deceleration based on the wheel speed signal;
determining an initial deceleration threshold representing a pre-lockup condition;
determining a final deceleration threshold based on the vehicle deceleration;
comparing the wheel deceleration to the final deceleration threshold; and
activating the anti-lock brake system if the wheel deceleration exceeds the final deceleration threshold.
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Accused Products
Abstract
A method and system are disclosed for controlling an anti-lock brake system based on vehicle deceleration. The system includes a wheel speed sensor and control unit for performing the method steps of sensing a wheel speed and determining a wheel deceleration and a vehicle deceleration therefrom. The control unit also performs the method steps of determining an initial deceleration threshold representing a pre-lockup condition, determining a final deceleration threshold based on the vehicle deceleration, comparing the wheel deceleration to the final deceleration threshold, and activating the vehicle anti-lock brake system if the wheel deceleration exceeds the final deceleration threshold.
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Citations
12 Claims
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1. A method for controlling a vehicle anti-lock braking system, the method comprising:
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sensing a wheel speed and generating a corresponding wheel speed signal; determining a wheel deceleration based on the wheel speed signal; determining a vehicle deceleration based on the wheel speed signal; determining an initial deceleration threshold representing a pre-lockup condition; determining a final deceleration threshold based on the vehicle deceleration; comparing the wheel deceleration to the final deceleration threshold; and activating the anti-lock brake system if the wheel deceleration exceeds the final deceleration threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle anti-lock brake control system comprising:
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a sensor for sensing a wheel speed and for generating a corresponding wheel speed signal; and a control unit coupled to the sensor for performing the following; determining a wheel deceleration based on the wheel speed signal; determining a vehicle deceleration based on the wheel speed signal; determining an initial deceleration threshold representing a pre-lockup condition; determining a final deceleration threshold based on the vehicle deceleration; comparing the wheel deceleration to the final deceleration threshold; and generating a control signal for activating the anti-lock brake system if the wheel deceleration exceeds the final deceleration threshold. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification