Method and apparatus for controlling the brake system of a vehicle
AssigneeRobert Bosch GmbH
InventorsJochen Wagner, Helmut Wiss
Life of this patent
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Abstract
A deceleration regulator which generates a nominal deceleration value, preferably a PID controller, can be adapted to the requirements of the brake engagement. A guidance magnitude filter is used, a preliminary control dependent on the nominal deceleration is performed, and the integral component of the regulator is activated only in certain states of operation. In certain courses of the nominal value, a portion of the regulator is corrected.
Claims14
A method for controlling the brake system of a vehicle, said vehicle comprising a deceleration controller having an integral-action component and at least one other component, said method further comprising:
- generating a setpoint deceleration value;
- determining an actual deceleration value;
- determining the deviation between said actual and said setpoint deceleration value;
- producing an output signal by the at least one other component based on the deviation;
- determining on the basis of the setpoint deceleration value a control signal in the form of a switching signal that activates the integral action component when the deviation, or a deviation dependent thereon, is less than a first threshold value;
- taking into account said control signal when the output signal of the controller is formed;
- and producing an output signal by the integral component based on the deviation when the component is active;
- controlling said brake system based on said integral output signal, so that said actual deceleration approaches said setpoint deceleration.
A device for controlling the brake system of a vehicle, comprising an electronic control unit having:
- a means for generating a setpoint deceleration value;
- a means for determining an actual deceleration value;
- a means for determining the deviation between said actual and said setpoint deceleration value;
- a means for producing an output signal by at least one first component based on the deviation;
- a means for determining on the basis of the setpoint deceleration value a control signal in the form of a switching signal that activates an integral-action component when the deviation, or a deviation dependent thereon, is less than a first threshold value;
- producing an output signal by the integral component based on deviation where the component is active;
- and
- a means for controlling said brake system based on said integral output signal, such that said actual deceleration approaches said setpoint deceleration.
Dependencies are inferred from the claim text.