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:
Dec. 05, 2023
Filed:
Oct. 28, 2020
GM Cruise Holdings Llc, San Francisco, CA (US);
Kenneth Ramon Ferguson, Scottsdale, AZ (US);
GM CRUISE HOLDINGS LLC, San Francisco, CA (US);
Abstract
A battery assessment station for an electric vehicle (EV) battery includes an impedance spectroscopy device that applies an electrical signal at a set of frequencies and measures the impedance response of the battery. A battery analyzer determines a battery parameter, such as remaining useful life or state-of-health, based on the impedance response. A fleet management system manages a fleet of EVs according to their determined battery parameters. For example, the fleet management system applies operational rules regarding the use or charging of the EVs in order to respond to battery degradation and improve battery life.