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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-2026104104-A1, on 16 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000404

Electric valve control device and electric valve device

Published
Permanent URL
Classification
Industrial Motion & Power Transmission › Fluid Power
Original source
US-2026104104-A1, the United States Patent and Trademark Office, 16 April 2026
Document SHA-256
75f2ba82ed77c82e47ba578425514312a73697136fdaca84aa866318e47c42d8

Abstract

An electric valve control device is configured to (i) start inputting pulse to a stepping motor to rotate a rotor in a first direction, (ii) obtain a rotation angle of the rotor based on a rotation angle signal and a position of the rotor based on a magnetic-flux-density signal each time pulse is input to the stepping motor, and (iii) stop inputting pulse when a change in the rotation angle of the rotor matches a change pattern information and a position of the rotor is a proximity position or a position nearer a reference position than is the proximity position. The change pattern information includes a change in the rotation angle indicating rotation in a second direction.

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Citation

OpenTechnical Publication OT-2026-000000404, “Electric valve control device and electric valve device,” published September 15, 2026 at 19:02:50 UTC, https://opentechnical.org/p/OT-2026-000000404.

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