EP 0799515 A1 19971008 - CIRCUIT AND PROCESS FOR OPERATING AN ADJUSTING DRIVE
Title (en)
CIRCUIT AND PROCESS FOR OPERATING AN ADJUSTING DRIVE
Title (de)
SCHALTUNGSANORDNUNG UND VERFAHREN ZUM BETREIBEN EINES VERSTELLANTRIEBS
Title (fr)
CIRCUITERIE ET PROCEDE DE FONCTIONNEMENT D'UN MECANISME DE COMMANDE DE REGLAGE
Publication
Application
Priority
- DE 9501672 W 19951125
- DE 4444762 A 19941219
Abstract (en)
[origin: DE4444762A1] 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.
IPC 1-7
IPC 8 full level
H02H 7/085 (2006.01); H02P 3/08 (2006.01); H02P 29/00 (2006.01); H02H 3/44 (2006.01); H02H 7/093 (2006.01)
CPC (source: EP KR US)
H02H 7/085 (2013.01 - KR); H02H 7/0851 (2013.01 - EP US); H02H 3/44 (2013.01 - EP US); H02H 7/093 (2013.01 - EP US)
Citation (search report)
See references of WO 9619858A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 4444762 A1 19960620; CN 1170480 A 19980114; EP 0799515 A1 19971008; JP H10510978 A 19981020; KR 980700717 A 19980330; US 5963001 A 19991005; WO 9619858 A1 19960627
DOCDB simple family (application)
DE 4444762 A 19941219; CN 95196893 A 19951125; DE 9501672 W 19951125; EP 95936986 A 19951125; JP 51941296 A 19951125; KR 19970704076 A 19970618; US 86030497 A 19970619