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:
Oct. 14, 2014
Filed:
Oct. 05, 2011
Takayuki Ubukata, Chiyoda-ku, JP;
Naoki Itoi, Chiyoda-ku, JP;
Nobuhiro Kihara, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A vehicular power supply device mounted on a vehicle equipped with an idle stop function is provided that enhances engine startability and suppresses a voltage drop at a battery driving the starter, so as to reduce energy consumption by the engine or other drive sources. The device includes a voltage converter for converting a DC voltage Voutput from a generator into a DC voltage control value Vand for outputting the value, and when the idle-stop determination unit determines that the engine is in the idle stop state, the voltage converter outputs, depending on a current and voltage supplied to an electrical load including a starter, a second DC voltage control value Vhigher than a first DC voltage control value Vthat is a target output voltage for the battery.