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.

Date of Patent:
Jun. 25, 2019

Filed:

Nov. 04, 2015
Applicant:

Volvo Car Corporation, Gothenburg, SE;

Inventors:

Hannes Kuusisto, Gothenburg, SE;

Bjorn Fridholm, Gothenburg, SE;

Torsten Wik, Gothenburg, SE;

Assignee:

Volvo Car Corporation, Gothenburg, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/367 (2019.01); G01R 31/36 (2019.01); H01M 10/48 (2006.01); G01R 31/382 (2019.01); B60L 58/12 (2019.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3648 (2013.01); B60L 58/12 (2019.02); G01R 31/367 (2019.01); G01R 31/382 (2019.01); H01M 10/482 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01); Y02T 10/705 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01);
Abstract

A method and a system are provided for determining a maximum charge current or a maximum discharge current of an energy storage cell of an energy storage device. The method includes providing a predetermined upper voltage limit or lower voltage limit, and providing a time horizon as a time difference from a present time to a future time. The method also include, with a repetition time period different from the time horizon, repeating measuring a present voltage level of the energy storage cell, calculating a voltage difference between the present voltage level and the upper voltage limit or the lower voltage limit, and determining the maximum charge current or maximum discharge current corresponding to the voltage difference and a model, such that the estimated voltage is within the voltage limits.


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