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, 2026
Filed:
Aug. 02, 2023
Hitachi Astemo, Ltd., Hitachinaka, JP;
Nobuyasu Kanekawa, Tokyo, JP;
Hiroshi Nakano, Tokyo, JP;
Takao Fukuda, Hitachinaka, JP;
Ryoichi Inada, Tokyo, JP;
Kentaro Jumonji, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
The object of the present invention is to achieve redundancy of a power supply function by a simple configuration, to ensure operational continuity in case of failure. A power grid () comprises: a first power supply path (-) that is connected to a main engine-driving power source (-) of a vehicle via a power conversion device () and to loads (--); and a second power supply path (-) that is connected to a power source (-) different from the main engine-driving power source (-), to loads (--), and to the first power supply path (-) via a switch SW. The switch SWis closed when the first power supply path (-) and the second power supply path (-) are normal, and is opened when the first power supply path (-) or the second power supply path (-) is abnormal.