METHOD OF CONTROLLING HYDRODYNAMIC BRAKE-RETARDER OF MOTOR VEHICLE

The invention relates to a process for the actuation of an hydrodynamic retarder brake for motor vehicles, which is controlled by an electrohydraulic valve system. The rotational velocity of some part of the drive system (or an average of a plurality thereof) is indicated by a continuously generated...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHANDOR SHIMONI,HU, LASLO TERECHIK,HU, ISHTVAN TOT,HU, DERD VALOTSI,HU
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a process for the actuation of an hydrodynamic retarder brake for motor vehicles, which is controlled by an electrohydraulic valve system. The rotational velocity of some part of the drive system (or an average of a plurality thereof) is indicated by a continuously generated electrical signal. When the throttle is released, or the brake pedal, having been depressed is then released, the vehicle velocity at that moment is stored as a reference signal in a memory. If the actual velocity thereafter exceeds the stored value, the hydrodynamic retarder is actuated. The momentary velocity of the vehicle is thereafter continuously compared with the stored reference velocity, and the retarder controlled accordingly. Rapidly applied retarder action is realized by controlling the same using PD control.