A vehicle includes an engine, a generator, an electric power storage device, a switch, a shutter, and a electronic control unit. The switch is configured to be operated by a user. The shutter is arranged in a path of air of intake air to the engine compartment from an outside of the vehicle. The electronic control unit configured to charge the electric power storage device by using the electric power generated by the generator when the switch is operated, and close the shutter when the electric power storage device is charged based on the operation of the switch.

A plurality of fans is connectable to a heat exchanger arrangement having a plurality of separated cooling loops. At least one of the fans is operable to move air through at least two of the cooling loops, and at least one other fan is operable to move air through at least one of the cooling loops. A control system includes at least one controller and is operable to control each of the at least one fan using a respective control strategy correlating temperature values with fan outputs, and to control each of the at least one other fan using a respective control strategy that is different from each control strategy used to control the at least one fan.

Provided is an amphibious vehicle with which it is possible to increase the driving power even when the engine rotational speed is low. When the engine rotational frequency is lower than a prescribed rotational frequency the fan flow volume of a fan is calculated on the basis of the fan outlet pressure (B1), the amount of heat exchange of a heat exchanger is calculated on the basis of the fan inlet temperature, the fan outlet temperature, and the fan flow volume (B2), a target fan rotational frequency is calculated on the basis of the engine rotational frequency and the heat exchange amount (B3), the fan rotational frequency is reduced so as to achieve the target fan rotational frequency (B4, B5), and the power transmitted to a travel device is increased, thereby increasing the drive torque (B6).

Bypass valve for a lubrication circuit of an internal combustion engine equipped with a cooler of a respective lubricating fluid, the valve comprising a tubular body, a first outlet opening, a second outlet opening and a movable shutter slidingly associated to the tubular body so as to define a slide valve, wherein the valve comprises a bypass duct having development parallel to said development axis and partially penetrating in the tubular body to bypass said shutter.

Methods and systems are provided for adjusting a dual grille shutter system based on engine operating conditions. A position of a first group of grille shutters may be adjusted by a motor in response to engine temperature, CAC temperature, and driving conditions. A position of a second group of grille shutters may be adjusted based on the position of the first group of grille shutters.

A system and method of operating a cooling system for a vehicle engine, wherein one or more motors are operable to rotate one or more fans. Each of the one or more motors is controlled by a motor controller associated with the motor, in response to a control signal received from a system controller and an enable signal received from the vehicle. The motor controller operates the motor at a speed based upon the control signal if the control signal is received, and operates the motor at a predetermined speed if the control signal is not received but the enable signal is received.

An active air flap and electric thermostat integration control method for a vehicle may include a first control step of controlling opening and closing of an active air flap (AAF) depending on whether the vehicle starts-up, a second control step of controlling opening and closing of an electric thermostat (ETS) and the opening and closing of the AAF according to an engine temperature, a third control step of controlling the opening and closing of the ETS and the opening and closing of the AAF according to an engine load, a fourth control step of controlling the opening and closing of the ETS and the opening and closing of the AAF depending on whether a brake is operated, and a fifth control step, by the ECU, of controlling the opening and closing of the ETS and the opening and closing of the AAF according to a coolant temperature.

A system and method of operating a cooling system for a vehicle engine, wherein one or more motors are operable to rotate one or more fans. Each of the one or more motors is controlled by a motor controller associated with the motor, in response to a control signal received from a system controller and an enable signal received from the vehicle. The motor controller operates the motor at a speed based upon the control signal if the control signal is received, and operates the motor at a predetermined speed if the control signal is not received but the enable signal is received.

A method and a system and a computer program product are provided to control vehicle fan speed of a vehicle fan hardware of a vehicle to regulate coolant temperature of vehicle coolant of the vehicle. Predicted coolant temperature data and predicted thermal impact data are generated based on acquired previous coolant temperature data and acquired previous thermal impact data. A currently predicted fan speed demand is generated based on the predicted coolant temperature data. the predicted thermal impact data and previously imposed fan speed demands or an initial fan speed demand. The currently predicted fan speed demand is compared with a received real-time fan speed demand. A highest fan speed demand among the currently predicted fan speed demand and the real-time fan speed demand is determined. A control signal for controlling vehicle fan speed is generated based on the highest fan speed demand.