Continental Teves, Ag and Company Ohg

Continental Teves Ag &co. Ohg

Peter Leska

Ralph Gronau

Andreas Neu

Holger Kollmann

Michel Wagner

Jörg Berntheusel

Dieter Burkhard

Christof Maron

Heinz-Anton Schneider

Jürgen Woywod

Eduard Wiens

Klaus Dieter Pagel

Christian Strehle

Christian Kebbel

Klaus Berger

Artur Kost

Alexander Treib

Andreas Strecker

Jusuf Muratoski

Patrik Henke

Tobias Franke

Silvio Färber

Erik Händler

Michael Wagner

In a method for optimizing the pressure setting accuracy, a hydraulic pressure is built up according to a pressure requirement of a hydraulic pump, and overflow control is performed using an analog-controlling hydraulic valve and a known control characteristic curve of the analog-controlling hydraulic valve, which overflow control counteracts a pressure build-up produced by the hydraulic pump that exceeds the pressure requirement. In addition to the known control characteristic curve of the analog-controlling hydraulic valve, at least one additional valve characteristic is taken into account for the overflow control.

Method for optimizing the pressure setting accuracy

A method for hydraulically boosting a vehicle electric parking brake having a hydraulic service brake and an electric parking brake. Application forces electically generated by the parking brake function is superimposed on the boosting brake force generated by a hydraulic boosting brake pressure provided by the service brake to the brake actuator. When the parking brake is actuated to generate a predetermined application force, the force generated by the brake actuator is detected as the actual value, if an actual value of the measured value is smaller than a first target value a boosting brake pressure value is applied to the brake actuator, and by means of the parking brake function an adjustment function for the tension of the brake actuator to which the hydraulic boosting brake pressure is applied is carried out to achieve the predetermined application force.

Method for hydraulically boosting an electric parking brake of a vehicle

A control valve conditioning method in an electrohydraulic pressure control unit comprising at least one electrically triggered solenoid valve that is controlled in an analog manner. The solenoid valve is operated at a specific operating current according to a functional correlation or characteristic diagram between the valve current and the differential pressure characteristic curve when the pressure is controlled, said functional correlation or characteristic diagram being stored in the pressure control unit. The method comprises the following steps: a) temporarily applying at least one anti-hysteresis pulse to the solenoid valve during which a current is set far below or far above the operating current in the valve; b) applying the anti-hysteresis pulse at the desired operating current before or during controlled operation, and c) applying the anti-hysteresis pulse wherein the duration is limited in such a way that the anti-hysteresis pulse has largely no influence on the brake pressure.

Method for conditioning a control valve

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Dreieich, Germany

Peter Leska