ELECTRIC VALVE CONTROL DEVICE, ELECTRIC VALVE DEVICE, AND METHOD FOR CONTROLLING ELECTRIC VALVE
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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N/A
Issued Date -
Apr 10, 2025
app pub date -
Jan 30, 2023
filing date -
Jan 30, 2023
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An electric valve control device inputs pulses to a stepping motor to rotate a rotor in a second direction; inputs pulses to the stepping motor to rotate the rotor in a first direction when the electric valve is in a second-direction-rotation restricted state; obtains the number of pulses (an input number (Xi)) input to the stepping motor from the second-direction-rotation restricted state to a first-direction-rotation restricted state when the electric valve is in the first-direction-rotation restricted state while the rotor rotates in the first direction; determines that the rotor can rotate normally when the input number (Xi) is greater than or equal to a design number (Xd) and is smaller than or equal to an upper limit number (Xu); and determines that the rotor cannot rotate normally when the input number (Xi) is smaller than the design number (Xd) or is greater than the upper limit number (Xu).
First Claim
Other Claims data not available