Electrically driven cooling system for vehicular applications
First Claim
1. A vehicle cooling system comprising:
- a closed loop coolant flowpath connecting an electrically driven coolant pump and a radiator, the electrically driven coolant pump operable to circulate coolant through the closed loop coolant flowpath through the radiator, the closed loop coolant flowpath further being in flow communication with a plurality of non-engine components of the vehicle to receive coolant circulated by the electrically driven coolant pump and provide the coolant to the radiator;
an electrically driven radiator fan operable to push air across the radiator; and
a controller configured to control the electrically driven coolant pump and the electrically driven radiator fan to operate independently of an operating condition of an engine of the vehicle in response to a temperature condition of at least one of the plurality of non-engine components, wherein the controller is further operable to increase a speed of at least one of the electrically driven coolant pump and the electrically driven radiator fan in response to a demand for increased coolant flow in the closed loop coolant flowpath.
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Accused Products
Abstract
Some exemplary embodiments include an electrically driven cooling system for cooling non-engine components of a vehicle. The electrically driven cooling system includes a closed loop coolant flowpath including an electrically driven coolant pump and a radiator connected to the closed loop coolant flowpath, and one or more components connected in parallel and/or in series in the closed loop coolant flow path that receives the coolant. An electrically driven radiator fan is also operable to cool the coolant in the radiator. The electrically driven cooling system is flow isolated from any mechanically driven cooling system that provides coolant to the engine for vehicles that include an engine.
24 Citations
18 Claims
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1. A vehicle cooling system comprising:
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a closed loop coolant flowpath connecting an electrically driven coolant pump and a radiator, the electrically driven coolant pump operable to circulate coolant through the closed loop coolant flowpath through the radiator, the closed loop coolant flowpath further being in flow communication with a plurality of non-engine components of the vehicle to receive coolant circulated by the electrically driven coolant pump and provide the coolant to the radiator; an electrically driven radiator fan operable to push air across the radiator; and a controller configured to control the electrically driven coolant pump and the electrically driven radiator fan to operate independently of an operating condition of an engine of the vehicle in response to a temperature condition of at least one of the plurality of non-engine components, wherein the controller is further operable to increase a speed of at least one of the electrically driven coolant pump and the electrically driven radiator fan in response to a demand for increased coolant flow in the closed loop coolant flowpath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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operating a vehicle including a plurality of non-engine components, the vehicle further including an engine; determining a temperature condition of at least one of the plurality of non-engine components; in response to the temperature condition being above a first threshold, pumping coolant through a closed loop coolant flowpath in thermal communication with at least a portion of the plurality of non-engine components with an electrically driven coolant pump; determining a temperature condition of the coolant; in response to the temperature condition of the coolant being above a second threshold, operating an electrically driven radiator fan to remove heat from the coolant at a radiator connected to the closed loop coolant flowpath; and pumping coolant through a second closed loop coolant flowpath in thermal communication with the engine with a mechanically driven component in response to operating the engine. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification