| 摘要 |
PURPOSE: A cooling fan controller for a vehicle is provided to stabilize an electrical system by preventing the momentary over-current consumption. CONSTITUTION: A first cooling fan motor(11) connected to the ground is connected to a battery power via an internal switch contact of a first cooling fan drive relay(13). A second cooling fan motor(12) is connected to the battery via an internal switch contact of a second cooling fan drive relay(14). The internal switch contact of the first cooling fan drive relay is switched by a control signal outputted from a control unit(18). The internal switch contact of the second cooling fan drive relay is switched by an air conditioner switch selecting signal outputted from an air conditioner control unit(16). The first cooling fan motor is independently driven by the control signal of the control unit, while the second cooling fan motor is independently driven by the air conditioner switch selecting signal of the air conditioner control unit.
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