Cooling system having pulsed fan control
First Claim
1. A cooling system for an engine, the cooling system comprising:
- an air cooler configured to cool intake air being supplied to the engine;
a sensor configured to generate a temperature signal indicative of a temperature of the intake air;
a fan in proximity to the air cooler; and
a controller in communication with the sensor and the fan, wherein the controller is configured tocause the fan to operate at a speed that is a function of the temperature signal when the temperature of the intake air is above a threshold temperature,cause the fan to pulse on while the temperature of the intake air is below the threshold temperature, andcause the fan to pulse off while the temperature of the intake air is below the threshold temperature.
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Accused Products
Abstract
A cooling system is provided for an engine. The cooling system may have an air cooler configured to cool intake air being supplied to the engine. The cooling system may also have a sensor configured to generate a temperature signal indicative of a temperature of the intake air and a fan in proximity to the air cooler. The cooling system may further have a controller in communication with the sensor and the fan. The controller may be configured to cause the fan to operate at a speed that is a function of the temperature signal when the temperature of the intake air is above a threshold temperature. The controller may further be configured to selectively cause the fan to pulse when the temperature of the intake air drops below the threshold temperature.
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Citations
20 Claims
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1. A cooling system for an engine, the cooling system comprising:
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an air cooler configured to cool intake air being supplied to the engine; a sensor configured to generate a temperature signal indicative of a temperature of the intake air; a fan in proximity to the air cooler; and a controller in communication with the sensor and the fan, wherein the controller is configured to cause the fan to operate at a speed that is a function of the temperature signal when the temperature of the intake air is above a threshold temperature, cause the fan to pulse on while the temperature of the intake air is below the threshold temperature, and cause the fan to pulse off while the temperature of the intake air is below the threshold temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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11. A machine, comprising:
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a chassis; an engine mounted to the chassis; a traction device configured to support the chassis; an air cooler configured to cool intake air being supplied to the engine; a sensor configured to generate a temperature signal indicative of a temperature of the intake air; a fan in proximity to the air cooler; and a controller in communication with the sensor and the fan, wherein the controller is configured to cause the fan to operate at a speed that is a function of the temperature signal when the temperature of the intake air is above a threshold temperature, cause the fan to pulse on while the temperature of the intake air is below the threshold temperature, and cause the fan to pulse off while the temperature of the intake air is below the threshold temperature.
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Specification