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:
May. 29, 2012
Filed:
Oct. 27, 2011
Xiangchun Zhang, Ann Arbor, MI (US);
Yen-hung Chen, Ann Arbor, MI (US);
Chia-wei Wang, Ypsilanti, MI (US);
Ann Marie Sastry, Ann Arbor, MI (US);
Xiangchun Zhang, Ann Arbor, MI (US);
Yen-Hung Chen, Ann Arbor, MI (US);
Chia-Wei Wang, Ypsilanti, MI (US);
Ann Marie Sastry, Ann Arbor, MI (US);
Sakti3, Inc., Ann Arbor, MI (US);
Abstract
A method of the present invention using a prediction process including a battery equivalent circuit model used to predict a voltage and a state of charge of a battery. The equivalent circuit battery model includes different equivalent circuit models consisting of at least an ideal DC power source, internal resistance, and an arbitrary number of representative parallel resistors and capacitors. These parameters are obtained a priori by fitting the equivalent circuit model to battery testing data. The present invention further uses a correction process includes determining a corrected predicted state of charge of the battery; and storing the corrected state of charge of the battery in a storage medium. In the present invention, an expectation of the predicted voltage of the battery and an expectation of the predicted state of charge of the battery are obtained by an unscented transform with sigma points selected by a Gaussian process optimization.