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:
Apr. 23, 2024
Filed:
Jun. 17, 2019
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Hiroaki Sato, Tokyo, JP;
Toshiyuki Ajima, Tokyo, JP;
Kenichiro Matsubara, Hitachinaka, JP;
Daisuke Goto, Hitachinaka, JP;
Hitachi Astemo, Ltd, Hitachinaka, JP;
Abstract
An object of the present invention is to provide a motor control device capable of estimating a delay with high accuracy even in a case where there is a fluctuation in disturbance torque or delay time and of suppressing the influence of the delay. For this end, the present invention includes a motor MTR, an ECUthat controls the rotation of the motor MTR, and an ECUthat sends a torque command to the ECUbased on a command value. The ECUincludes a disturbance estimation blockand a delay estimation block. The disturbance estimation blockestimates disturbance torque (τd) using a torque command input to the ECUand a feedback value of the motor MTR. The delay estimation blockestimates a delay using a torque command output from the ECU, the feedback value of the motor MTR, and the disturbance torque (τd).