| 摘要 |
The device to control the cooling fan for cooling the engine radiator, has two-contacts bimetal switch. The device comprises a micro processor (M) connected with a vehicle-speed sensor (Vs), an air-conditioner driving sensor (A), an engine RPM sensor (RS), a water-temp. sensor (WS), an ignition switch (IGSW) via the interface (1); a digital-analog convertor (D/A) for converting the output signal of the microprocessor (M) to the analog signal and switching on/off the relay of the cooling fan to prevent the unnecessary driving of the fan motor.
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