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:
Aug. 03, 2021
Filed:
Mar. 13, 2020
Denso Corporation, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A motor control device includes a plurality of systems capable of controlling current supply to a motor. Each microcomputer of first and second systems is configured to communicate information of the own system and the other system by inter-computer communication and has an independent ground potential. A power supply current flowing between a power supply and a power converter is assumed to be positive and negative in a power running state and a regeneration state. Each microcomputer monitors the power supply current of each system by the inter-computer communication, and executes a power supply current balancing process of limiting a current command value or a voltage command value of at least one of the two systems thereby to decrease a power supply current difference between the two systems when the power supply current difference between the two systems exceeds a target value.