Apparatus and method of measuring coil current of hydraulic valve
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United States of America Patent
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Apr 24, 2018
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N/A
app pub date -
May 21, 2015
filing date -
May 22, 2014
priority date (Note) -
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Abstract
Disclosed herein are an apparatus and method of measuring a coil current of a hydraulic valve. The apparatus includes a first coil current measurement unit configured to receive a first coil current control signal from a coil current control device during an ON operating section of the hydraulic valve in operating sections of the hydraulic valve operated by receiving power of a battery, and measure a first coil current value flowing through a coil of the hydraulic valve using a first switching element to be switched ON, and a second coil current measurement unit configured to receive a second coil current control signal from the coil current control device during an OFF operating section of the hydraulic valve in the operating sections of the hydraulic valve operated by receiving power of the battery, and measure a second coil current value flowing through the coil of the hydraulic valve using a second switching element to be switched ON.
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