Global Patent Index - EP 0979793 A3

EP 0979793 A3 2000-03-29 - Method to stop an electric motor and circuit to break it

Title (en)

Method to stop an electric motor and circuit to break it

Title (de)

Verfahren zum Stillsetzen eines elektrischen Antriebsmotors und Bremsschaltung

Title (fr)

Méthode pour arrêter un moteur électrique et circuit pour le freiner

Publication

EP 0979793 A3 (DE)

Application

EP 99110202 A

Priority

DE 19836701 A

Abstract (en)

[origin: EP0979793A2] At a bobbin winding station, to stop the electric drive motor (13) for the grooved drum (10) to give the reciprocating yarn guide movement, the motor is fed with a braking current in the opposite direction to the nominal current supply. The generated heat loading on the motor (13) is measured, and the strength of the braking current is varied (14) according to the motor (13) heat. The actual heat loading on the motor is measured by the current loading of the motor over the time. Stepped values for the braking current are used, each for a thermal loading range. An Independent claim is included for a motor braking circuit with a monitor to register the actual motor (13) heat. A unit (14) selects the braking current to be used for a braking action, according to the measured motor heat level. Preferred Features: The braking current control (14) has stored data for current values related to heat levels, and a system to select the required braking current according to the measured motor heat. The motor heat levels are stored in the database in stepped value, where each heat range is associated with a braking current strength.

IPC 1-7 (main, further and additional classification)

B65H 63/00

IPC 8 full level (invention and additional information)

H02P 3/10 (2006.01); B65H 54/74 (2006.01); B65H 63/036 (2006.01); H02P 3/02 (2006.01)

CPC (invention and additional information)

B65H 54/74 (2013.01); B65H 63/036 (2013.01); B65H 2701/31 (2013.01); Y10S 388/934 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0979793 A2 20000216; EP 0979793 A3 20000329; EP 0979793 B1 20030326; DE 19836701 A1 20000217; JP 2000060170 A 20000225; JP 4404409 B2 20100127; TR 9901947 A2 20000321; TR 9901947 A3 20000321; US 6232732 B1 20010515

INPADOC legal status


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