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. 04, 2022
Filed:
Sep. 21, 2021
Subaru Corporation, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A vehicle includes a high-voltage system circuit including a high-voltage battery, a low-voltage system circuit including an updater and a low-voltage battery having a lower output voltage than the high-voltage battery, a DC-DC converter coupled between the two circuits, a controller that controls the two circuits and the DC-DC converter, and a wireless communication device. The updater updates a program of an update-target device. The wireless communication device wirelessly receives update data for the program. The controller calculates time taken for updating the program, based on information on the update data. The controller causes the DC-DC converter to reduce in voltage output electric power of the high-voltage battery and then supply the electric power to the low-voltage system circuit, and thus charges the low-voltage battery in accordance with the calculated time. The updater updates the program using output electric power of the charged low-voltage battery.