Method and system for controlling an anti-lock brake system
AssigneeKelsey-Hayes Company
InventorsDan Negrin, Darryl C. Weber
Life of this patent
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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.
Claims12
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.
A vehicle anti-lock brake control system comprising:
- 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.
Dependencies are inferred from the claim text.