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. 07, 2010
Filed:
Aug. 29, 2007
Han-seok Yun, Yongin-si, KR;
Young-jo Lee, Yongin-si, KR;
Soo-seok Choi, Yongin-si, KR;
Jae-moon Lee, Seoul, KR;
Bo-hyung Cho, Seoul, KR;
Han-Seok Yun, Yongin-si, KR;
Young-Jo Lee, Yongin-si, KR;
Soo-Seok Choi, Yongin-si, KR;
Jae-Moon Lee, Seoul, KR;
Bo-Hyung Cho, Seoul, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A battery management system that estimates an internal impedance of a battery, a method of driving the same, a device that estimates an internal impedance of a battery, and a method of estimating the internal impedance of a battery. A method of driving a battery management system that estimates the internal impedance of a battery including a plurality of cells includes generating a battery equivalent model of the battery, receiving a terminal voltage signal and a charge and discharge current signal of the battery, and generating a first discrete signal corresponding to the terminal voltage signal of the battery and a second discrete signal corresponding to the charge and discharge current signal of the battery, and filtering the first discrete signal and the second discrete signal according to a frequency range corresponding to the battery equivalent model so as to estimate the internal impedance of the battery. The device that estimates an internal impedance of a battery filters the first discrete signal and the second discrete signal according to a frequency range corresponding to the battery equivalent model so as to estimate the internal impedance of the battery.