| 摘要 |
<P>PROBLEM TO BE SOLVED: To optimize various kinds of the control of an engine when cooling water circulation stops in an engine control device. <P>SOLUTION: The engine control device which stops the cooling water circulation of a water jacket 13 during engine warm-up includes: a water temperature sensor 19; engine operating condition detection sensors 22 and 23; a cooling water temperature rise estimating unit 41 which estimates a water temperature rise of the cooling water based on the engine operating condition; an estimated cooling water temperature calculation unit 42 which calculates an estimated cooling water temperature by adding the water temperature rise estimated by the cooling water temperature rise estimating unit 41 to a detection value of the water temperature sensor 19 when starting up the engine; and an operating state control unit 45 which controls an operating state of the engine 10 based on the detection values of the operating condition detection sensors 22 and 23 and the estimated cooling water temperature calculated by the estimated cooling water temperature calculation unit 42. <P>COPYRIGHT: (C)2013,JPO&INPIT |
