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. 25, 2025
Filed:
Jun. 14, 2022
Hitachi Astemo, Ltd., Hitachinaka, JP;
Makoto Kimura, Hitachinaka, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
An electric power steering apparatus according to the present invention includes a first control device that is capable of controlling a first actuator of a steering device, a second control device that is capable of controlling a second actuator of the steering device, and a third control device that is capable of switching connection to, and disconnection from, at least one of the first actuator and the second actuator. When a failure occurs in the first control device, the first control device is disconnected from the first actuator, and the third control device is connected to the first actuator. When a failure occurs in the second control device, the second control device is disconnected from the second actuator, and the third control device is connected to the second actuator. In this way, even when a failure occurs in one of a plurality of control devices, reduction in total output of electric motors can be prevented.