METHOD FOR SENSING AIR INFLOW STATE OF ELECTRIC WATER PUMP

WIPO Patent Application WO/2023/101268

A1

The present invention relates to a method for sensing an air inflow state of an electric water pump and, more specifically, to a method enabling an air inflow state of an electric water pump to be sensed using an Iq current value indicating the torque of a motor. The method for sensing an air inflow state of an electric water pump includes a current measurement step, a variation calculation step, and a determination step. In the current measurement step, the Iq current value of a motor is measured. In the variation calculation step, the difference between the maximum value and the minimum value of a current value measured per unit time in the current measurement step is calculated. In the determination step, whether a value calculated in the variation calculation step exceeds a reference value is determined. Additionally, in the current measurement step of the method for sensing the air inflow state of the electric water pump, the current value of Iq can be an Iq current value directed to the motor by a controller.

KIM JIN SOO (KR)
KIM MIN JU (KR)
JUNG WON SIK (KR)
KIM CHANG MOO (KR)
LEE HYEOUNG WON (KR)

PCT/KR2022/018087

June 08, 2023

November 16, 2022

Click for automatic bibliography generation  

GMB KOREA CORP (KR)

F04D27/00; F04D13/06; F04D13/08; H02P21/14

JP2008095570A	2008-04-24
KR101361408B1	2014-02-12
JP5655943B2	2015-01-21
KR20200122603A	2020-10-28
KR101628559B1	2016-06-09

DYNE PATENT AND LAW FIRM (KR)

View/Download PDF      PDF Help

Previous Patent: AUTOMATIC WATER SPLASH PREVENTION DEVICE FOR SINK

Next Patent: USE OF SET7/9 FOR DIAGNOSING AND TREATING ENDMT-RELATED DISEASE