DEVICE AND METHOD FOR DETECTING OIL CONTAMINATION USING ELECTRIC OIL PUMP

摘要

PURPOSE: An apparatus and a method for detecting the contamination of transmission oil using an electric oil pump are provided to detect the contamination of transmission oil at an early stage by comparing a current value supplied to an electric oil pump with a reference current value. CONSTITUTION: An apparatus for detecting the contamination of transmission oil using an electric oil pump comprises a phase current sensor(80), a top control unit(82), and a warning unit(86). The phase current sensor is installed on the output end of an oil pump controller(88) and detects a current value applied to an electric oil pump(60). The top control unit determines whether foreign materials are caught in the electric oil pump by comparing the detected current value with a reference current value. The warning unit warns a driver that foreign materials are caught in the electric oil pump. [Reference numerals] (60) Electric oil pump(EOP); (80) Phase current sensor; (86) Warning unit; (88) Electric oil pump controller(Pump motor inverter); (AA) High-voltage battery