Method and System for Determining at Least One Power Contact Resistance

A method determines at least one power contact resistance or at least one resistance value corresponding to the at least one power contact resistance between at least one pack power contact of a battery pack and at least one apparatus power contact of an electrically driven work apparatus or of a ch...

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Bibliographic Details
Main Authors VON HOFEN, Malte, SAEMANN, Christian
Format Patent
LanguageEnglish
Published 29.12.2022
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A method determines at least one power contact resistance or at least one resistance value corresponding to the at least one power contact resistance between at least one pack power contact of a battery pack and at least one apparatus power contact of an electrically driven work apparatus or of a charging apparatus. The pack power contact and the apparatus power contact touch one another and are loaded with a power current. The battery pack and the work apparatus or the charging apparatus are electrically connected by a data communication line for transmitting a data communication signal. The method determines the power contact resistance or the resistance value by comparing a signal voltage variable of the data communication line and a power voltage variable of the at least one pack power contact or of the apparatus power contact with one another, wherein the signal voltage variable or the power voltage variable is dependent on a voltage drop caused by the power current and the at least one power contact resistance.
Bibliography:Application Number: US202217851144