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US 2016/0096413 A1Published application
Cooling system of hybrid electric vehicle and method for controlling the same
AssigneeHyundai Motor Company
InventorKyung-Su HAN
Life of this patent
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Abstract
A cooling system of a hybrid electric vehicle (HEV) includes an engine cooling circuit that cools cooling water using an engine heat exchanger and circulates the cooled cooling water using an engine water pump to cool an engine. An HEV cooling circuit cools cooling water using an HEV heat exchanger and circulates the cooled cooling water using an HEV water pump to cool an inverter and a motor. A connection part connects the engine cooling circuit to the HEV cooling circuit.
Claims9
A cooling system of a hybrid electric vehicle (HEV), comprising:
- an engine cooling circuit that cools cooling water using an engine heat exchanger and circulates the cooled cooling water using an engine water pump to cool an engine;
- an HEV cooling circuit that cools cooling water using an HEV heat exchanger and circulates the cooled cooling water using an HEV water pump to cool an inverter and a motor;
- and
- a connection part that connects the engine cooling circuit to the HEV cooling circuit.
1 more element
A method for controlling a cooling system of an HEV, the method comprising steps of:
- determining whether an HEV cooling circuit operates abnormally;
- determining whether an engine cooling water temperature is less than a first preset temperature, if it is determined that the HEV cooling circuit abnormally operates;
- opening a an electrical opening valve, if it is determined that the engine cooling water temperature is less than the first preset temperature;
- determining whether the HEV starts after the valve is open;
- and
- closing the electrical opening valve, if it is determined that the HEV starts.
3 more elements
Dependencies are inferred from the claim text.