McDonnell Boehnen Hulbert & Berghoff LLP
Method of determining condition of coolant in vehicle
The present disclosure provides a method of determining a coolant condition of a vehicle, and more particularly, a method of accurately determining a coolant condition, e.g., a condition in which gas is present in a system and an insufficient coolant condition without a separate additional sensor in a vehicle using an electric water pump (EWP). To this end, the present disclosure provides a method of determining a coolant condition of a vehicle, including, in a vehicle including an electric water pump (EWP) for circulating a coolant, acquiring driving state information of a water pump while the water pump is driven, by a controller, calculating a ripple value of a driving state from the acquired driving state information of the water pump, by the controller, and comparing the calculated ripple value with a reference value to determine a condition of a coolant, by the controller.
KIA MOTORS CORPORATION HYUNDAI MOTOR COMPANY
F B F F B F B B
F01P B60H F01P F01P B60H F01P B60K B60H
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Young Pin Seung Yong Jin Hun
Jin Lee Lee