Gate S.r.l.

Gate S.p.a.

Antonio Cicirello

Maurizio Barbero

Davide Cerrato

Andrea Bartolazzi

A control device for an electric motor of a cooling fan for the radiator of a motor vehicle has a control transistor connected to the motor, and an electronic control unit for controlling the speed of the motor. The control unit controls the transistor in such a manner as to limit the current flowing in the motor to a predetermined value when, by effect of the load conditions of the motor and the voltage applied to the motor, the current in the motor tends to exceed the predetermined value.

Control device for an electric motor

The system includes a sensor operable to supply electrical signals indicating the temperature of the engine and further sensors operable to supply electrical signals indicating predetermined parameters established to define operating conditions of the motor vehicle. A processing and control unit is provided to select, on the basis of the signals supplied by the said further sensors, a corresponding predetermined function which correlates the electric power to be supplied to the fan assembly with the electric power to be supplied to the electric pump, in dependence on the heat energy extracted from the engine, in order to obtain the minimum sum of the said electric power values; and to determine, on the basis of the signals supplied by the first sensor and the said selected function, the values of electric power to be supplied to the electric fan and the electric pump.

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Collegno, Italy

Antonio Cicirello