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:
Nov. 18, 2025
Filed:
Sep. 27, 2021
Hitachi Astemo, Ltd., Hitachinaka, JP;
Yasushi Sugiyama, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Ibaraki, JP;
Abstract
A vehicle control system is capable of implementing a fail operation while ensuring safety of traveling of a vehicle even when a power source function failure of a battery occurs. The vehicle control system includes an HV battery, first, second, third and fourth high-voltage relays that are redundantly arranged on an upstream side and a downstream side of the HV battery, a first and second DC-DC converters that are connected to the relays, a first and second high-voltage SW control units that are disposed on a downstream side of the converters and control the relays, and an in-vehicle battery disposed on a downstream side of the second DC-DC converter. The first high-voltage SW control unit and the second high-voltage SW control unit interrupt the relays and control a vehicle based on electric power of the in-vehicle battery on condition that an abnormality of the HV battery is detected.