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:
Sep. 29, 2020
Filed:
Aug. 13, 2018
Honda Motor Co., Ltd., Tokyo, JP;
Masaya Takahashi, Saitama, JP;
Naotaka Tsuji, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An electric power system of a vehicle includes: a high-voltage circuit, which includes a high-voltage battery connected to a main circuit; a system ECU, which controls the main circuit; a first system control power line, which connects a low-voltage battery to the system ECU; a second system control power line, which connects the high-voltage circuit to the first system control power line; a voltage-reducing device, which reduces a voltage of the electric power from the high-voltage circuit; a second switch, which is arranged on the second system control power line; and a backup power supply ECU, which turns the second switch off when a pre-charge of smoothing condensers arranged on the main circuit is performed by supplying the electric power of the high-voltage battery.