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. 15, 2015
Filed:
Apr. 16, 2012
Kensuke Hayashi, Chiyoda-ku, JP;
Shingo Yamaguchi, Chiyoda-ku, JP;
Keiichi Enoki, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A power source current control unit () controls a magnetic-field current PWM control signal (PW) for PWM-controlling a magnetic-field current of an electric rotating machine () so that the value of a power source current flowing in a power source apparatus () can be controlled in a non-energization manner to be zero or a value near to zero; in the case where the power source voltage stability determination unit () determines that during a predetermined period, variation in a power source inter-terminal voltage value (V) of the power source apparatus () is within a predetermined range, the power source SOC estimation unit () estimates the state of charge of the power source apparatus (), based on the voltage value (V) of the power source apparatus ().