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:
Jan. 22, 2019
Filed:
Jan. 14, 2015
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
Electronic control units (ECUs) provided with circuits for backing up other ECUs lack versatility and increase costs. In the present invention, motor control ECUs respectively control motors via signal wires that perform motor control. In addition, a dedicated substitute ECU is connected to each motor via signal wires that perform motor control. A substitute control circuit part of the dedicated substitute ECU runs to a network, is continuously receiving malfunction information and stability information via a signal wire, and detects the malfunction of the motor control ECU from said information. Then the dedicated substitute ECU substitutes for the motor control ECU and performs a backup operation to continue control of the motor via the signal wire.