A vehicle and method for vehicle noise reduction for vehicle occupants are provided. The method comprises detecting a position of a window of the vehicle; and controlling the duty of an operational component of the vehicle based on the position of the window of the vehicle and at least one of: a speed of the vehicle, and a presence of a sound-reflecting structure proximate to the vehicle; wherein the operational component is external to a cabin of the vehicle; and wherein noise generated by the operational component increases with a duty of the operational component.

A system and method for controlling the operation of a vehicle radiator fan motor is provided. One embodiment receives one of a low-speed radiator fan control signal or a high-speed radiator fan control signal from an engine control module; provides a first soft start of the radiator fan motor in response to receiving the low-speed radiator fan control signal, wherein the first soft start is defined by a first increasing power ramp that starts at a zero-power level and ends at a low-speed power level; and provides a second soft start of the radiator fan motor in response to receiving the high-speed radiator fan control signal, wherein the second soft start is defined by a second increasing power ramp that starts at the zero-power level and ends at a high-speed power level.

Power systems and enclosures having a configurable cooling air flow are disclosed. The power system includes an enclosure; an air inlet location, a first air outlet location, a second air outlet location, a fan assembly, and one or more relocatable covers to obstruct the first and second air outlet locations. The air inlet location may be at a first location on an exterior of the enclosure to permit intake of air from the exterior of the enclosure to an interior of the enclosure. The first air outlet location may be at a second location on the exterior of the enclosure to expel air taken in through the air inlet location, while the second air outlet location at a third location on the exterior of the enclosure to expel air taken in through the air inlet location.

Power systems and enclosures having a configurable cooling air flow are disclosed. The power system includes an enclosure; an air inlet location, a first air outlet location, a second air outlet location, a fan assembly, and one or more relocatable covers to obstruct the first and second air outlet locations. The air inlet location may be at a first location on an exterior of the enclosure to permit intake of air from the exterior of the enclosure to an interior of the enclosure. The first air outlet location may be at a second location on the exterior of the enclosure to expel air taken in through the air inlet location, while the second air outlet location at a third location on the exterior of the enclosure to expel air taken in through the air inlet location.

Methods and system for operating a vehicle cooling system are described. In one example, the vehicle cooling system cools a heat generating device via a fan and pump. A speed of the fan is commanded by a feedback controller with possible neural network predictive control to track a variable temperature reference that is based on thermal load estimation. A disturbance observer may be applied to observe thermal load and an observer-based observer may be used to generate the temperature reference so that the power consumption of a fan is minimized.

A method of coupling a fan to an engine includes selecting a base portion of a fan adapter, which includes a mounting portion and a coupling portion with a mating portion. The mounting portion is configured to be coupled to a fan drive or a fan drive pulley of the engine via one or more mounting elements. The method also includes selecting a fan end portion of the fan adapter. The fan end portion includes a mounting portion and a coupling portion. The mounting portion of the fan end portion is configured to be coupled to the fan, and the coupling portion of the fan end portion includes a mating portion that is complementary to the mating portion of the base portion. The method further includes coupling the engine to the fan by coupling the mating portion of the fan end portion to the mating portion of the base portion.

To provide such a cooling fan control device, a cooling device, and a cooling fan control method that can cool a heat exchanger appropriately according to an air density. A cooling fan control device controls a rotation speed of a cooling fan being driven by power supplied from an alternator and cooling the heat exchanger. The cooling fan control device comprises a density detection means detecting the air density. The cooling fan control device comprises a controller, where the smaller the air density detected by the density detection means is, the greater an upper limit of target rotation speed of the cooling fan is set, as long as power consumption of the cooling fan does not exceed a power capacity of a power supply source.

The invention comprises a centralized cooling system for motorized vehicle's brakes, wheels, tires, and bearings, controlled by a Central ECU Module. The system uses one or more fans, preferably brushless, intelligently managed by the Central ECU Module, fixed to the chassis or unibody of the vehicle and connected to forced air outlet ducts, so that the air is channeled directly to the wheel hubs of the vehicle's axles. The system uses, individually or together, through the collection and processing of data by the Central ECU Module, several technical information collected by the vehicle's peripherals, so that it manages the use of the brake cooling system fans intelligently, in relation to the potency applied, the duration the fan is on when the vehicle is turned on and the duration the fan is on when the vehicle is turned off.

A fan adapter includes a base and a fan end portion. The base includes a mounting portion and a coupling portion, and the base is configured to be coupled to a portion of an engine. The fan end portion includes a mounting portion and a coupling portion. The coupling portion of the fan end portion is configured to be coupled to the coupling portion of the base, and the fan end portion is removably couplable to the base via one or more coupling elements to prevent relative rotation between the base and the fan end portion.

A motor controller includes a temperature sensor configured to detect a temperature of a motor. An intermittent operation circuit allows the motor to intermittently operate at a rotation speed up to a phase before the motor reaches a rated rotation speed when it is detected that the motor temperature is at a low temperature range. The intermittent operation circuit includes a position fixing circuit configured to allow a constant electric current to flow through stator coils and to fix the motor in a stopped state. The intermittent operation circuit further includes a forced commutation circuit that allows the motor to rotate at a rotation speed up to the start-up rotation. The position fixing circuit allows the constant electric current to have a greater value as the temperature detected by the temperature sensor is lower, and allows the position fixing circuit and the forced commutation circuit to operate alternately.