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1. (WO2015043941) METHOD AND APPARATUS FOR DETERMINING THE AGING OF AN ELECTRONIC INTERRUPTER ELEMENT, IN PARTICULAR OF A POWER CONTACTOR

Pub. No.:    WO/2015/043941    International Application No.:    PCT/EP2014/069124
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Wed Sep 10 01:59:59 CEST 2014
IPC: G07C 3/08
G05B 23/02
Applicants: ROBERT BOSCH GMBH
SAMSUNG SDI CO., LTD.
Inventors: SALZIGER, Jan
GALAMB, Gergely
ANZICEK, Joshua
PROBST, Dylan
Title: METHOD AND APPARATUS FOR DETERMINING THE AGING OF AN ELECTRONIC INTERRUPTER ELEMENT, IN PARTICULAR OF A POWER CONTACTOR
Abstract:
The invention relates to a method for determining the aging of an electronic interrupter element which is configured to open and close a power circuit. The method according to the invention comprises the following steps: a) initializing an aging counter NWear, b) determining the amount I of a current which flows through the electronic interrupter element upon opening the power circuit, c) determining a current-dependent aging value Nwear (I) from the amount I of the current, d) refreshing the aging counter NWear using the current-dependent aging value Nwear (I). The invention further relates to a computer program and to an apparatus for determining the aging of an electronic interrupter element and to a battery management system which are in particular configured to carry out the method.