A cooling system for a vehicle that includes a temperature detection device for detecting a temperature related to a power transmission apparatus. The cooling system includes a cooling fan and an electronic control apparatus including a load limiting portion configured, when the detected exceeds a limit temperature value, to limit a load applied to the power transmission apparatus. The electronic control apparatus is configured to determine whether the detected temperature is equal to or higher than a fan-cooling temperature value that is lower than the limit temperature value, and to control rotation of the cooling fan, such that the cooling fan is rotated when the detected temperature is not lower than the fan-cooling temperature value, and such that a rotational speed of the cooling fan is higher when a temperature of the power transmission apparatus is high, than when the temperature of the power transmission apparatus is low.

A hydraulic drive fan control device is provided with a variable displacement hydraulic pump, a hydraulic motor, a hydraulic drive fan that is driven by the hydraulic motor, a flow amount control valve, a rotational speed detector that detects a rotational speed of an engine, and a controller. The controller outputs a first valve control signal to the flow amount control valve and outputs a first pump control signal to the hydraulic pump to rotate the hydraulic drive fan at a first rotational speed, and outputs a second valve control signal to the flow amount control valve and outputs a second pump control signal to the hydraulic pump, thereby stopping the rotation of the hydraulic drive fan.

A shutter system is provided for a vehicle having an internal combustion engine that receives forced intake air and is cooled by an engine coolant. The vehicle includes a charge air cooler system having an intercooler for cooling the intake air and an engine cooling system. The shutter system includes a shutter positioned downstream of the intercooler and an actuator for moving the shutter between first and second positions. The shutter system further includes a sensor for generating a signal associated with a temperature of the intake air and a processor for comparing the temperature to a threshold. The actuator moves the shutter to the first position in response to receiving the first signal when the temperature is below the threshold. The actuator moves the shutter to the second position in response to receiving the second signal when the temperature is above the threshold.

An engine cooling control apparatus, a system including the same, and a method thereof provide an engine cooling control apparatus including a processor configured to calculate a required fan rotation speed for controlling a cooling fan based on proportional integral (PI) control and a storage configured to store data acquired by the processor and an algorithm for driving the processor. The processor classifies a plurality of control regions depending on a coolant temperature and adjusts and outputs the required fan rotation speed for each of the control regions.

A system for cooling an engine is provided. The system uses a rim driven fan having an electric motor in a frame of the fan to move air through a radiator toward the outside of the vehicle. The electric motor may have the rotor and the stator axially or radially aligned. The plurality of fan blades extends radially inward of a support which is formed integral with or attached to the rotor. Rim driven fans are also provided.

The present disclosure is directed to a cooling system for a system, such as an electric power assisted steering (EPAS) system and the components of such system, such as a motor. The cooling system includes a temperature sensor coupled to an electric motor of the EPAS system, one or more fluid reservoirs, and a fluid transfer device coupled to the motor and to the first fluid reservoirs. The fluid transfer device extends along a length of the motor. The cooling system further includes a pump coupled to the fluid reservoir and the fluid transfer device, a control unit coupled to the sensor and the pump. The control unit is configured to activate the pump in response to temperature detected by the sensor being greater than or equal to a first threshold motor temperature. The pump transfers the fluid in the fluid reservoirs to the fluid transfer device for absorbing the heat of the motor. The fluid transfer device is configured to contain the transferred fluid.

A heat control device is provided in a vehicle including a first thermal circuit that circulates a coolant and a second thermal circuit that circulates a refrigerant while changing the state of the refrigerant and is able to exchange heat with the first thermal circuit. When there is a heat discharge request from the second thermal circuit, the heat control device includes a determination unit configured to determine an amount of operation of each of a plurality of units which are used to discharge heat such that the heat discharge request is satisfied and the sum of power consumption values of the plurality of units is minimized.

A system including a cooling fan, an actuator with an actuator temperature sensor, and a controller is disclosed. The controller may be configured to receive temperature data from the actuator temperature sensor. The temperature data may include information relating to an actuator temperature of the actuator. The controller may be configured to compare the actuator temperature with a temperature threshold associated with the actuator, and control the cooling fan to adjust the actuator temperature based on determining that the actuator temperature satisfies the temperature threshold.

A system including a cooling fan, an actuator with an actuator temperature sensor, and a controller is disclosed. The controller may be configured to receive temperature data from the actuator temperature sensor. The temperature data may include information relating to an actuator temperature of the actuator. The controller may be configured to compare the actuator temperature with a temperature threshold associated with the actuator, and control the cooling fan to adjust the actuator temperature based on determining that the actuator temperature satisfies the temperature threshold.

A system for controlling a fan of a vehicle engine. The system comprises: i) a fan configured to selectively cool the vehicle engine; and ii) an engine control module configured to: a) turn on the fan when the engine temperature exceeds a selected temperature threshold; b) determine when the vehicle engine is operating in an engine braking mode; and c) in response to the engine operating in the engine braking mode, turn on the fan when the engine temperature is below the selected temperature threshold. The engine control module turns the fan off as a means of hardware protection of the fan clutch even during engine braking modes.