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:
Mar. 02, 2021
Filed:
Apr. 15, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Tomoyuki Ueda, Tokyo, JP;
Yuichi Hayashi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided is a power control device, for a vehicle, that is excellent in efficient discharge of energy stored in a smoothing capacitor provided in the power control device. The level of an output voltage of a backup power supply unit for generating, from energy of the smoothing capacitor, drive power required for a discharge operation is switched so as to be equal to or higher than the level of the voltage of an auxiliary battery during the discharge operation. Accordingly, the power control device contributes to shortening of a time period for discharge of the smoothing capacitor, and contributes to reduction in the number of times of charging/discharging of the auxiliary battery since power supplied from the auxiliary battery can be reduced during the discharge operation.