| 摘要 |
<p>A cooling system control apparatus includes an electronic control unit (18) to individually control the operation of an engine water pump (10), a radiator fan motor (6a) and an electromagnetic valve (11) for bypassing the cooling water passage to the radiator (5), on the basis of a cooling water temperature. When the cooling water temperature is below about 85°C, the water pump (10) is stopped to raise the cooling water temperature rapidly, and when the cooling water temperature is above about 85°C, the water pump (10) is operated and the electromagnetic valve (11) is operated to bypass the cooling water passage to the radiator (5), and when the cooling water temperature is above about 90°C, the fan motor (6a) is operated and also the electromagnetic valve (11) is operated to allow the cooling water to pass through the radiator (5).</p> |
