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:
Oct. 12, 2021
Filed:
Sep. 27, 2018
Furukawa Electric Co., Ltd., Tokyo, JP;
Furukawa Automotive Systems Inc., Shiga, JP;
Taiji Mitsuyama, Tokyo, JP;
Etsuzo Sato, Tokyo, JP;
Noriyasu Iwane, Tokyo, JP;
Naotaka Uchino, Tokyo, JP;
Hirokazu Narui, Tokyo, JP;
Akira Oono, Tokyo, JP;
Takayuki Morikawa, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
FURUKAWA AUTOMOTIVE SYSTEMS INC., Shiga, JP;
Abstract
A secondary battery deterioration estimation device includes receiving a first signal representing a discharging voltage; receiving a second signal representing a discharging current from a current sensor; calculating values of elements forming an equivalent circuit of the secondary battery based on the first and second signals; calculating a state of health (SOH) of the secondary battery based on the values of the elements forming the equivalent circuit; generating history information showing history of a use state of the secondary battery; calculating the SOH of the secondary battery based on the history information; determining a deterioration state of the secondary battery with reference to at least one of the SOH calculated by the values of the elements or the SOH calculated by the history information by the processor in accordance with a state of the secondary battery; and outputting data representing the deterioration state of the secondary battery.