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:
Sep. 08, 2009
Filed:
Jun. 10, 2005
Takeshi Hirata, Zama, JP;
Tsuyoshi Yamanaka, Yamato, JP;
Yuji Nakada, Tokyo, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A state of charge of a battery () that drives a motor () is computed based on a discharge current measured by a current sensor () when the discharge current of the battery () does not exceed a rated discharge range of the battery (). When the discharge current of the battery () exceeds the rated discharge range, the state of charge of the battery () is computed by estimating the discharge current of the battery () from a motor control signal, whereby current changes over a wide range can be found with good precision using the sensor (), which has a narrow but high resolution measurable range, and the state of charge can be accurately detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile