The present disclosure relates to a heat radiator and a turbo fracturing unit comprising the same. The heat radiator includes: a cabin; a heat radiation core disposed at the inlet and configured to allow a gas to pass therethrough; a gas guide device disposed at the outlet and configured to suction the air within the cabin to the outlet; and noise reduction core disposed within the cabin, which is of a structure progressively converging to the outlet. The heat radiator is configured to enable the gas to enter the cabin via the inlet, then sequentially pass through the heat radiation core, a surface of the noise reduction core and the gas guide device, and finally be discharged out of the cabin. The heat radiator according to the present disclosure is a suction-type heat radiator which can regulate the speed of the gas guide device based on the temperature of the gas at the inlet, thereby avoiding energy waste and unnecessary noise. The smooth curved surface of the noise reduction core can reduce noise without affecting the gas flow.

Methods and systems are provided for diagnosing an active grille shutter (AGS) system. In one example, a method may include indicating degradation of an AGS system of a vehicle based on an infrared image information obtained from a camera coupled to the vehicle and adjusting one or more engine operating parameters responsive to the indicating.

The invention relates to a cooling system for a vehicle, the cooling system comprising a cooling fan comprising a ram air turbine disposed in an aperture of a fan shroud, the fan shroud comprising: an opening, a shutter mechanism movable between a closed position in which it closes the opening, and an open position in which it opens the opening so that a ram air flow can pass through the opening, wherein the fan shroud further comprises: a velocity sensor configured to measure ram air flow velocity, a temperature sensor configured to measure ram air flow temperature, and an actuator configured to move the shutter mechanism between the closed position and the open position based on measured ram air flow velocity and measured ram air flow temperature.

The present disclosure relates to a heat radiator and a turbo fracturing unit comprising the same. The heat radiator includes: a cabin; a heat radiation core disposed at the inlet and configured to allow a gas to pass therethrough; a gas guide device disposed at the outlet and configured to suction the air within the cabin to the outlet; and noise reduction core disposed within the cabin, which is of a structure progressively converging to the outlet. The heat radiator is configured to enable the gas to enter the cabin via the inlet, then sequentially pass through the heat radiation core, a surface of the noise reduction core and the gas guide device, and finally be discharged out of the cabin. The heat radiator according to the present disclosure is a suction-type heat radiator which can regulate the speed of the gas guide device based on the temperature of the gas at the inlet, thereby avoiding energy waste and unnecessary noise. The smooth curved surface of the noise reduction core can reduce noise without affecting the gas flow.

The present disclosure relates to a heat radiator and a turbo fracturing unit comprising the same. The heat radiator includes: a cabin; a heat radiation core disposed at the inlet and configured to allow a gas/air to pass therethrough; a gas/air guide device disposed at the outlet and configured to suction the air within the cabin to the outlet; and noise reduction structure disposed within the cabin, which is of a structure progressively converging to the outlet. The heat radiator is configured to enable the gas/air to enter the cabin via the inlet, then sequentially pass through the heat radiation core, a surface of the noise reduction structure and the gas/air guide device, and finally be discharged out of the cabin. The heat radiator according to the present disclosure is a suction-type heat radiator which can regulate the speed of the gas/air guide device based on the temperature of the gas/air at the inlet, thereby avoiding energy waste and unnecessary noise. The smooth curved surface of the noise reduction structure can reduce noise without affecting the gas/air flow.

An apparatus for controlling an active air flap (AAF) of a vehicle may include a plurality of sensors configured to detect status information of the vehicle; an opening degree controller configured to control an opening degree of the AAF; and a processor configured to determine a target flow and a target opening degree of the AAF based on the status information, calculate an initial speed of a wake generated by a preceding vehicle based on vehicle information of the preceding vehicle, obtain a speed of the wake when the wake arrives the vehicle based on a speed of the vehicle, an inter-vehicle distance between the vehicle and the preceding vehicle, and the initial speed of the wake, correct the target opening degree based on the speed of the wake, and adjust the opening degree of the AAF corresponding to the corrected target opening degree.

An apparatus for controlling an active air flap (AAF) of a vehicle may include a plurality of sensors configured to detect status information of the vehicle; an opening degree controller configured to control an opening degree of the AAF; and a processor configured to determine a target flow and a target opening degree of the AAF based on the status information, calculate an initial speed of a wake generated by a preceding vehicle based on vehicle information of the preceding vehicle, obtain a speed of the wake when the wake arrives the vehicle based on a speed of the vehicle, an inter-vehicle distance between the vehicle and the preceding vehicle, and the initial speed of the wake, correct the target opening degree based on the speed of the wake, and adjust the opening degree of the AAF corresponding to the corrected target opening degree.

Methods and systems for managing a monitoring of an engine cooling system. A transient condition associated with an engine system is identified. A determination is made as to whether the transient condition is a delay condition based on whether the transient condition exceeds a transient threshold. A determination is made, in response to a determination that the transient condition is not the delay condition, as to whether a period of time that has passed since a previously identified delay condition meets a time threshold. Monitoring of a health of the engine cooling system is enabled in response to a determination that the period of time meets the time threshold.

An intake-air temperature controlling device for an engine is provided, which includes an engine body, an intake passage, an air intake part, an intake air temperature adjuster configured to adjust air temperature taken in through the air intake part to the passage, and a controller. An operating range in which the CI combustion is performed has a lean operating range in which A/F of mixture gas formed inside the cylinder, or G/F that is a relationship between the total weight G of gas inside the cylinder and a weight F of fuel fed to the cylinder is relatively low, and a rich operating range in which the A/F or G/F is relatively high. When the engine is in the lean operating range, the controller outputs a control signal to the intake air temperature adjuster so that the air temperature is increased, as compared in the rich operating range.

A coolant flow control apparatus may include a coolant controller housing of which an inlet for coolant to flow in, an outlet for the coolant to flow out, a first coolant supply line and a second coolant supply line are formed, a water pump mounted to the coolant controller housing for transmitting the coolant, a valve plate selectively opening/closing the first coolant supply line, a valve piston selectively opening/closing the second coolant supply line, a driving unit selectively moving the valve plate and the valve piston for closing or opening the first coolant supply line and the second coolant supply line respectively and a controller configured for controlling an operation of the driving unit.