Hyundai Motor Company

Kia Motors Corporation

Sanghoon Yoo

Sejun Kim

Byungho Lee

Jason Hoon Lee

Kwangwoo Jeong

Jaihyun Lee

A method can include: acquiring, via one or more sensors disposed in a vehicle, one or more engine operation parameters relating to operation of an internal combustion engine disposed along a coolant flow path in the vehicle; calculating at least one target coolant temperature according to the one or more engine operation parameters; and controlling a valve actuator to regulate flow of a coolant through the coolant flow path via an electric coolant valve operatively coupled to the valve actuator such that a temperature of the coolant changes in accordance with the at least one target coolant temperature.

Methods of controlling electrical coolant valve for internal combustion engine

A method can include: detecting a distance between the host vehicle and a preceding vehicle and a current speed of the preceding vehicle; calculating a relative speed of the host vehicle with respect to the preceding vehicle based on a current speed of the host vehicle and the detected current speed of the preceding vehicle; determining whether to activate an engine idle sailing (EIS) function, in which a driving gear of the host vehicle shifts to neutral, based on the relative speed of the host vehicle with respect to the preceding vehicle and the detected distance between the host vehicle and the preceding vehicle; and in response to determining to activate the EIS function of the host vehicle, controlling operation of the host vehicle so as to activate the EIS function of the host vehicle, causing the driving gear of the host vehicle to shift to neutral.

Controlling engine idle sailing in a vehicle using relative vehicle speed

Growing community of inventors

Ypsilanti, MI, United States of America

Sanghoon Yoo