BREMSKRAFTVERSTÄRKER MIT ZUSÄTZLICHER HYDRAULIK- HILFSKRAFT

A pneumatic-hydraulic hybrid pneumatic brake booster is improved. Additional hydraulic boosting ( 19, 20 ) provided by a hydraulic circuit is provided beyond a saturation point (Psat) in the operation of the pneumatic circuit. Hysteresis-induced instabilities in the pneumatic part of the booster are...

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Bibliographische Detailangaben
Hauptverfasser:	MARLHE, NICOLAS, GENDRIN, STEPHANE, PIEL, JEAN-MARC
Format:	Patent
Sprache:	ger
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A pneumatic-hydraulic hybrid pneumatic brake booster is improved. Additional hydraulic boosting ( 19, 20 ) provided by a hydraulic circuit is provided beyond a saturation point (Psat) in the operation of the pneumatic circuit. Hysteresis-induced instabilities in the pneumatic part of the booster are taken into consideration ( 50 ). A choice is made to compensate (A) for the shortfall in operation of the pneumatic circuit using the hydraulic circuit. In one example, this correction is afforded via a microprocessor which imposes a corrected process signal. Using this signal, pressure shifts in the pneumatic system are neutralized.