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:
Jul. 01, 2014
Filed:
Jul. 11, 2011
Koji Akimasa, Nara, JP;
Koji Akimasa, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An in-vehicle power supply device includes an electric generator, a main power supply, a DC/DC converter, a power storage unit, and a controller for controlling the DC/DC converter. The DC/DC converter stores regenerative electric power generated by the electric generator, and discharges the stored regenerative electric power to the main power supply and the load. The controller stops the DC/DC converter when a charging-status value is not larger than a predetermined lower limit value. Additionally, the controller activates the DC/DC converter when the charging-status value is larger than the lower limit value and the vehicle ends deceleration; and activates the DC/DC converter when a speed of the vehicle is not lower than a predetermined speed and an accelerator position of the engine is not larger than a predetermined accelerator position even if the charging-status value is not larger than the predetermined lower limit value.