Motorsteuerungsvorrichtung, Elektrische Servolenkvorrichtung und Fahrzeug

Details

Veröffentlichungs-Nr.

EP4723471

Anmeldetag

31. Mai 2023

Veröffentlichung

5. Dezember 2024

Rechtsraum

EP

IPC

H02P27/08(NAKAMURA KOUICHI et al.)(HIDAKA SEIJI et al.)

Abstract

A motor control device according to the present disclosure includes an inverter circuit including a plurality of high-potential-side switching elements, a plurality of low-potential-side switching elements, and a plurality of current sensors, a power control unit configured to control the plurality of high-potential-side switching elements and the plurality of low-potential-side switching elements based on a duty value, and an abnormality detection unit configured to detect an abnormality by comparing a sum of current values of the plurality of phases detected by using the plurality of current sensors when the plurality of low-potential-side switching elements are in a conductive state, with a first threshold value and to determine a failure based on the number of times the abnormality is detected, in which the abnormality detection unit compares the sum of the current values with the first threshold value, for each first cycle that is a current value detection cycle, and, when the abnormality is detected by the comparison, causes the power control unit to generate a limited duty value that limits the duty value to be less than or equal to a predetermined upper limit value and to perform duty limit processing that controls the plurality of high-potential-side switching elements and the plurality of low-potential-side switching elements based on the limited duty value.

Anmelder

Firma

Mitsubishi Electric Mobility Corporation

Land

🇯🇵 Japan

Fachgebiete