System and method for diagnosing state of cooling water
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United States of America Patent
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Jan 9, 2018
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N/A
app pub date -
May 4, 2016
filing date -
Oct 23, 2015
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Abstract
A system for diagnosing a cooling water state applied to a cooling water pump control system is provided. The cooling water pump control system includes a speed controller that generates an output current instruction value of an inverter to provide power to a cooling water pump based on a difference between a speed instruction value of the cooling water pump and an actual speed measurement value of the cooling water pump. The system for diagnosing a cooling water state includes a pump speed prediction model unit that generates a speed estimation value to predict a speed of the cooling water pump based on the output current instruction value, and a pump state diagnosing unit that compares the speed estimation value and the actual speed measurement value to diagnose a circulation state of the cooling water.
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