Schaltungsanordnung und Verfahren zum Betreiben eines Verstellantriebs

The proposal is for a circuit and a process for operating an adjustement drive (10, 11, 12) which detect a characteristic (38, 42) of the adjusting drive (10, 11, 12) as a measure of the adjustment force or torque and prepare an overload signal (41, 45) if a limit is exceeded. According to the inven...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KNECHT, GERHARD. , 76473 IFFEZHEIM, DE, PETER, CORNELIUS., 77815 BUEHL, DE
Format:	Patent
Sprache:	ger
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION
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Beschreibung
Zusammenfassung:	The proposal is for a circuit and a process for operating an adjustement drive (10, 11, 12) which detect a characteristic (38, 42) of the adjusting drive (10, 11, 12) as a measure of the adjustment force or torque and prepare an overload signal (41, 45) if a limit is exceeded. According to the invention, the electric power for the electric motor (10) is set at a value making it possible to maintain a predetermined spring rate in a clamping process giving the change in force related to a change in travel. The travel of the part (12) to be adjusted is divided into intervals (I) which are considerably smaller than the total adjustment travel. The process assesses a continuous change in the characteristics detected in a predetermined number of successive intervals (I) to find an overload signal (41, 45). A preferred application of the circuit and process of the invention for operating an adjustement drive (10, 11, 12) is in a motor vehicle.