MUMBAI, India, Sept. 7 -- Intellectual Property India has published a patent application (202527114993 A) filed by Mitsubishi Electric Mobility Corporation on November 21, 2025, for Motor Control Device, Electric Power Steering Device, And Vehicle.
Inventor includes Natsuhara Hiroya.
The application for the patent was published on September 04, 2026, under issue no. 36/2026.
Abstract: A motor control device according to the present disclosure comprises: an inverter circuit that has a plurality of high-potential-side switching elements, a plurality of low-potential-side switching elements, and a plurality of electric current sensors; an electric power control unit that controls the plurality of high-potential-side switching elements and the plurality of low-potential-side switching elements on the basis of a duty value; and an abnormality detection unit that, for each phase of a plurality of phases, detects an abnormality by comparing a first threshold value and an offset electric current value that is detected using the electric current sensors with a first threshold value when the low-potential-side switching elements are in a non-conductive state, and determines a failure on the basis of the number of times the abnormality has been detected, wherein the abnormality detection unit, when an abnormality is detected by the comparison, causes the electric power control unit to generate a limit duty value in which the duty value of a phase to be restricted is limited to be equal to or greater than a predetermined lower limit value for the phase to be restricted including the phase in which the abnormality is detected, and causes the electric power control unit to perform duty limit processing for controlling the high potential-side switching elements and the low potential-side switching elements on the basis of the limit duty value.
Disclaimer: Curated by HT Syndication.
