作者: Shigetaka Yoshikawa , Yoshikazu Shinpo , Hiromichi Murakami , Daisuke Yamamoto , Isao Takagi
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摘要: An engine cooling system controls a degree of an 1 according to operating condition thereof by circulating water through the engine. This is provided with temperature sensor 31 for detecting THW , flow rate regulating valve 8 circulation water, and electronic control unit (ECU) 30 controlling . The ECU sets non-control region first second regions, each centering on target be calculated conditions open close at high speed when in region, thereby allow approach or low holds current opening region.