Hyundai Motor Company

Kia Motors Corporation

Jung Jae Han

Young Jin Kim

Seung Woo Ko

Sangsoo Pae

A cooling apparatus for EGR gas and engine oil may include coolant lines through which coolant circulates, an EGR heat exchange part provided between the coolant lines, wherein the EGR gas circulates through the EGR heat exchange part so as to exchange heat with the coolant, a bypass part spaced apart from the EGR heat exchange part, wherein the EGR gas circulates through the bypass part, or bypasses the bypass part so as not to exchange heat with the EGR heat exchange part, an oil heat exchange part provided on the coolant lines and spaced apart from the EGR heat exchange part, wherein engine oil circulates through the oil heat exchange part so as to exchange heat with the coolant, and a control valve provided at an entrance side of the EGR heat exchange part so as to control circulation of the EGR gas into the oil heat exchange part.

Cooling apparatus and cooling control method for EGR gas and engine oil

Disclosed are an apparatus for adjusting temperature of oil for a vehicle, and a method for controlling the apparatus. The apparatus includes an EGR valve installed on a fluid channel branching off from an exhaust pipe, a complex heat exchanger structured to transfer exhaust gas having passed through the EGR valve to an engine intake pipe via an EGR cooling path in which the exhaust gas having passed through the EGR valve performs heat exchange with coolant, an oil heating path in which the exhaust gas having passed through the EGR valve performs heat exchange with oil, and a bypass path in which the exhaust gas having passed through the EGR valve does not perform heat exchange, an NOx sensor installed in the exhaust pipe, and a controller that controls the complex heat exchanger in response to a signal from the NOx sensor.

Apparatus for adjusting temperature of oil for vehicle and method for controlling the apparatus

An electric water pump control apparatus actively controls an electric water pump in a high speed range or a high load condition as a vehicle accelerates or overtakes. An electric water pump control method may include determining whether an engine is in a high speed/high load condition or in a normal condition by detecting an engine speed, fuel consumption amount, and coolant temperature, determining whether the coolant temperature is less than a predetermined second temperature, if the engine is in a high speed/high load condition, calculating a speed of the electric water pump by applying fuel consumption amount and engine speed, if the coolant temperature is less than a second temperature and determining a final speed of the electric water pump by applying a compensation coefficient according to the coolant temperature, and operating the electric water pump with the final speed to circulate the coolant.

Growing community of inventors

Gwangmyeong-si, South Korea

Jung Jae Han