Patent ID: 8534238

Claim:
An fan system, comprising: an engine control unit; a fan; a modulating fan clutch; and a fan clutch control unit, comprising: a strategy section programmed to predict future system states on a basis of at least one of current state variables, historical state variables, and stored data and programmed to provide a data signal representing a predicted future system state; and a control loop section programmed to receive at least one of (1) input data representing a state of at least one of an engine, the fan, and the fan clutch, and (2) the data signal provided by the strategy section, and programmed to provide a control signal to the fan clutch to control the fan to a target speed on a basis of at least one of the input data and the data signal provided by the strategy section, wherein the fan clutch control unit is connected to the fan clutch by one or more conducting wires and is configured to control the fan clutch.