Thermostat abnormal state detecting apparatus
    1.
    发明授权
    Thermostat abnormal state detecting apparatus 有权
    恒温器异常状态检测装置

    公开(公告)号:US07343752B2

    公开(公告)日:2008-03-18

    申请号:US10785075

    申请日:2004-02-25

    IPC分类号: F25D17/00 F01P5/14

    摘要: When a temperature of cooling water detected by a water temperature sensor is, for instance, higher than, or equal to degrees, and is smaller than degrees, an abnormal state judging unit judges that an engine is under semiwarming-up condition, and then forcibly drives an electric motor fan so as to forcibly cool cooling water contained in a radiator. After the abnormal state judging unit has forcibly driven the electric motor fan, this abnormal state judging unit calculates a difference between the cooling water temperature detected by the water temperature sensor and a predicted cooling water temperature. When the calculated temperature difference is smaller than a predetermined abnormal state judging value, the abnormal state judging unit judges that a thermostat provided in a cooling water circulating path is brought into an abnormal valve opening state.

    摘要翻译: 当由水温传感器检测到的冷却水的温度例如高于或等于度且小于度时,异常状态判断单元判断发动机处于半加温状态,然后强制 驱动电动机风扇,强制冷却散热器内的冷却水。 在异常状态判断单元强制地驱动电动机风扇之后,该异常状态判断单元计算由水温传感器检测到的冷却水温度与预测的冷却水温度之间的差。 当计算出的温差小于预定的异常状态判断值时,异常状态判断单元判断设在冷却水循环路径中的恒温器处于异常阀打开状态。