The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Sep. 12, 2016
Volvo Car Corporation, Gothenburg, SE;
Torbjorn Larsson, Alingsas, SE;
Alexander Engstrom, Gothenburg, SE;
Linus Franzen, Gothenburg, SE;
Mats Thorngren, Gothenburg, SE;
Fabian Fogelberg, Stora Hoga, SE;
Pelle Thorson, Ucklum, SE;
Petter Almhagen, Partille, SE;
Emil Wall, Partille, SE;
Daniel Midholm, Vastra Frolunda, SE;
Volvo Car Corporation, Gothenburg, SE;
Abstract
A method for determining a status of a vehicle battery includes determining an initial temperature and an initial state of charge of the battery, determining a current threshold value based on the initial temperature and the initial state of charge of the battery, starting the vehicle engine, charging the battery for a predetermined charging period t, measuring two charging currents, Iand I, to the battery at two predetermined points in time during the charging period t, determining an expected current value at a time t=t+tbased on the measured charging currents, comparing the expected current value with the current threshold value, and determining the battery is faulty if the expected current value is lower than the current threshold value.