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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.:

US 11541778 B1

PDFFull Text
Date of Patent:
Jan. 03, 2023

Filed:

Feb. 11, 2020

Thermal runaway detection and mitigation for electric vehicles

Applicant:

GM Cruise Holdings Llc, San Francisco, CA (US);

Inventors:

Kenneth Ramon Ferguson, Scottsdale, AZ (US);

Erik Nielsen, Glendale, AZ (US);

Chase Kaufman, Fountain Hills, AZ (US);

Assignee:

GM Cruise Holdings LLC, San Francisco, CA (US);

Attorney:

Akona IP PC

Primary Examiner:

Anthony R Jimenez

Int. Cl.
CPC ...
B60L 58/26 (2019.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/633 (2014.01); H01M 10/6567 (2014.01); G01R 31/396 (2019.01); G01R 31/382 (2019.01); G01R 31/371 (2019.01); B60L 50/64 (2019.01); B60W 60/00 (2020.01); B60Q 9/00 (2006.01); B60S 5/00 (2006.01); G01N 33/00 (2006.01); G05D 1/02 (2020.01); H01M 10/48 (2006.01);
U.S. Cl.
CPC ...
B60L 58/26 (2019.02); B60L 50/64 (2019.02); B60Q 9/00 (2013.01); B60S 5/00 (2013.01); B60W 60/001 (2020.02); G01N 33/0063 (2013.01); G01R 31/371 (2019.01); G01R 31/382 (2019.01); G01R 31/396 (2019.01); G05D 1/0212 (2013.01); G05D 1/0291 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/633 (2015.04); H01M 10/6567 (2015.04); B60W 2510/246 (2013.01); H01M 2220/20 (2013.01);
Abstract

A system for mitigating thermal runaway in a battery-powered electric vehicle (EV). The system includes a gas sensor configured to measure a level of at least one type of gas in a vicinity of a battery of the EV, a thermal event detector configured to determine, based on the measured level of the at least one type of gas, that the battery is experiencing out-gassing, and a communications interface configured to transmit an alert to a fleet management system regarding the out-gassing of the battery. The fleet management system alters an assignment of the EV in response to the out-gassing of the battery.

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