Cooling device for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorToshihiko Kojima
Life of this patent
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Abstract
A cooling device for a vehicle is provided at a vehicle comprising an engine control unit which stops an engine due to establishment of engine stoppage conditions and restarts the engine due to establishment of engine restart conditions. The cooling device for a vehicle is able to cool a coolant within a heat exchanger for cooling by cooling wind, which is guided from an exterior of the vehicle, passing through the heat exchanger for cooling. Cooling by driving force of either one of an electric motor or the engine can be selected in accordance with preset conditions.
Claims10
A vehicle cooling device provided in a vehicle comprising an engine control unit which stops an engine due to establishment of engine stoppage conditions and restarts the engine due to establishment of engine restart conditions, the cooling device able to cool a coolant for cooling by cooling wind, which is guided from an exterior of the vehicle, the cooling device comprising:
- a heat exchanger provided within an engine space;
- a first cooling fan driven by a driving force of the engine, and guiding the cooling wind to the heat exchanger;
- a second cooling fan driven by an electric motor, and guiding the cooling wind to the heat exchanger;
- a selecting unit which selects either the first cooling fan to run or the second cooling fan to run, and stops the other of the first cooling fan or the second cooling fan on the basis of preset conditions and stopping/restarting of the engine;
- and
- a cooling control unit driving the selected cooling fan when the first or second cooling fan is selected by the selecting unit.
A vehicle cooling device provided in a vehicle comprising an engine control unit which automatically stops an engine due to establishment of engine stop conditions and automatically restarts the engine due to establishment of engine restart conditions, the cooling device configured to cool a coolant by guiding cooling air from an exterior of the vehicle, the cooling device comprising:
- a heat exchanger provided within an engine space;
- a first cooling fan driven by a driving force of the engine, and guiding the cooling air to the heat exchanger;
- a second cooling fan driven by an electric motor, and guiding the cooling air to the heat exchanger;
- a selecting unit which can select either one of the first cooling fan or the second cooling fan on the basis of preset conditions and stopping/restarting of the engine;
- and
- a cooling control unit driving the selected cooling fan when the first or second cooling fan is selected by the selecting unit.
Dependencies are inferred from the claim text.