| 摘要 |
<p>A pump control system for controlling a pump in a vehicle to enable the pump to supply cooling fluid around a vehicle engine for maintaining a constant engine temperature, the system comprises: a microprocessor connected to a temperature sensor for detecting temperature of the vehicle engine; the microprocessor generating motor control signals for controlling speed of a pump-motor based on temperature of the vehicle engine and fan control signals for driving a radiator fan of the vehicle in the event that speed of the pump-motor is a predetermined threshold speed and temperature of the engine exceeds a predetermined threshold temperature; a pump control unit cooperating with the microprocessor for driving the pump-motor; a fan control unit cooperating with the microprocessor for driving the radiator fan; and a power control unit for supplying power to the system. Fig.4</p> |
