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. 10, 2016
Filed:
Jun. 28, 2012
Takeo Matsumoto, Tokyo, JP;
Kotaro Matsuda, Tokyo, JP;
Takeo Matsumoto, Tokyo, JP;
Kotaro Matsuda, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
A control device for an AC electric vehicle that is applied to a configuration in which an SIV is connected to an intermediate DC circuit unit between a CONV that converts an AC voltage input through a main transformer to a DC voltage and an INV that converts the DC voltage to an AC voltage, in which a carrier frequency fc of the CONV is changed on the basis of initial temperature (initial value of Tcnv) of a converter main circuit element when a vehicle is stopped and input current Isiv of the SIV such that a temperature variation of a converter main circuit element when the vehicle is stopped is reduced.