Method and apparatus for controlling a braking system
AssigneeRobert Bosch GmbH
InventorsJuergen Binder, Eberhardt Schunck, Juergen Hachtel, Ulrich Gottwick
Life of this patent
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Abstract
A method and an apparatus for controlling a braking system, the control unit of which controls the wheel brakes receiving reference variables for control purposes. If these reference variables are not available, the control unit produces, on the basis of a predefined braking force distribution between the front and rear axles and in the context of an emergency mode, reference variables which it sets at the wheel brakes.
Claims12
A method of using a first control unit to control a braking system that includes a plurality of wheel brakes associated with a corresponding plurality of control elements, the method comprising the steps of:
- receiving at the first control unit a plurality of reference variables for use in a setting operation at the plurality of wheel brakes;
- producing a plurality of drive signals for the plurality of control elements as a function of the plurality of reference variables so that an actual value associated with each of the wheel brakes approaches a corresponding one of the plurality of reference variables;
- determining a presence of a fault in which the plurality of reference variables are unavailable;
- and
- if the fault is determined to be present, the first control unit providing the plurality of reference variables in accordance with a predefined braking force distribution between a front axle and a rear axle.
An apparatus for controlling a braking system that includes a plurality of wheel brakes associated with a corresponding plurality of control elements, comprising:
- a first control unit for controlling the braking system;
- an arrangement for receiving a plurality of reference variables to control the plurality of wheel brakes;
- an arrangement for producing a plurality of drive signals for the plurality of control elements as a function of the plurality of reference variables in order to set the plurality of reference variables at the plurality of wheel brakes;
- and
- an arrangement for detecting one of an absence of the plurality of reference variables and a fault in an area of the plurality of reference variables, wherein if one of the absence and the fault is present:
- the first control unit provides a plurality of new reference variables in accordance with a predefined braking force distribution between a front axle and a rear axle, and
- the first control unit sets the plurality of new reference variables by actuating the plurality of control elements in order to control the braking system.
Dependencies are inferred from the claim text.