Closed-Loop Control of Brake Pressure Using a Pressure-Limiting Valve

A device for controlling the brake pressure in a hydraulic brake system with the aid of a pressure-limiting valve that limits the brake pressure to a predefined threshold value, and to that end is driven by an electronic device in accordance with a valve characteristic curve. The setting accuracy ca...

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Bibliographische Detailangaben
Hauptverfasser: CREPIN BETTINA, BUNK MICHAEL, SCHANZENBACH MATTHIAS, GALBAS ROLAND, KINDER RALF, BETZ CHRISTOPH
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A device for controlling the brake pressure in a hydraulic brake system with the aid of a pressure-limiting valve that limits the brake pressure to a predefined threshold value, and to that end is driven by an electronic device in accordance with a valve characteristic curve. The setting accuracy can be improved considerably if an estimating unit for estimating the brake pressure, a sensor system for measuring the brake pressure, a unit for determining a pressure difference between the measured brake pressure and the estimated brake pressure, as well as a controller unit which drives the pressure-limiting valve as a function of the pressure difference are provided.