Title:
A METHOD FOR ESTIMATING BATTERY SUPPLY VOLTAGE
Document Type and Number:
WIPO Patent Application WO/2023/173990
Kind Code:
A1
Abstract:
A method for estimating a minimum continuous and transient supply voltage (Umin_con, Umin_trans) of a battery (2). The method comprises: performing first and second electrical load tests of the battery (2) while registering parameters characterizing a discharge current profile and discharge voltage profile of the battery (2); determining a value of a continuous battery coefficient and a transient battery coefficient based on said registered parameters; calculating an estimate of the minimum continuous supply voltage (Umin_con) using said continuous battery coefficient, and calculating a minimum transient supply voltage (Umin_trans) from the battery (2) using said transient battery coefficient.
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Inventors:
SORANI HEZA (SE)
RUDERVALL ERIC (SE)
RYDGÅRD ANDREAS (SE)
FRANZEN LINUS (SE)
RUDERVALL ERIC (SE)
RYDGÅRD ANDREAS (SE)
FRANZEN LINUS (SE)
Application Number:
PCT/CN2023/076350
Publication Date:
September 21, 2023
Filing Date:
February 16, 2023
Export Citation:
Assignee:
NINGBO GEELY AUTOMOBILE RES & DEVELOPMENT CO LTD (CN)
GEELY HOLDING GROUP CO LTD (CN)
GEELY HOLDING GROUP CO LTD (CN)
International Classes:
G01R31/385; G01R31/36
Foreign References:
| US20020113593A1 | 2002-08-22 | |||
| US20110172939A1 | 2011-07-14 | |||
| DE102016121630A1 | 2018-05-17 | |||
| US20200331359A1 | 2020-10-22 | |||
| US6526361B1 | 2003-02-25 |
Attorney, Agent or Firm:
KING & WOOD MALLESONS (CN)
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