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:
Apr. 08, 2025
Filed:
Jan. 12, 2023
Denso Corporation, Kariya, JP;
Yoshikazu Furuta, Kariya, JP;
Soya Taniguchi, Kariya, JP;
Tomohiro Nezuka, Kariya, JP;
Kazutaka Honda, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A battery monitor system includes: a reference signal generation unit; an excitation signal generation unit; a current generation unit for an excitation current; a current measurement unit for the excitation current; a voltage measurement unit for a voltage of each battery cell; an impedance measurement unit for an impedance of each battery cell; a noise measurement unit for a noise voltage; and a control unit. The control unit selects one or more battery cells not a measurement target, and the noise measurement unit measures the noise voltage near a measurement frequency equal to a frequency of an orthogonal reference signal while operating the voltage measurement unit without operating the current generation unit.