Disclosed is an oil pressure supply system of an automatic transmission for a vehicle. According to an embodiment of the present invention, the oil pressure supply system of an automatic transmission for a vehicle comprises: a low pressure oil pump which is driven by an engine, changes oil stored in an oil pan into low pressure oil, and discharges the low pressure oil to a first low pressure flow path; a high pressure oil pump which is driven by an electric motor, boosts the pressure of a part of the low pressure oil from the first low pressure flow path to high pressure, and discharges the high pressure oil to a first high pressure flow path; a low pressure regulator valve which controls the pressure of the oil while discharging a part of the oil supplied through the first low pressure flow path and supplies the oil to a low pressure unit through a second low pressure flow path; and a high pressure regulator valve which controls the pressure of the oil while recirculating a part of the oil supplied through the first high pressure flow path in the low pressure unit through a recirculation flow path according to the pressure of the oil or recirculating the oil in the low pressure unit through two recirculation flow paths and supplies the oil to a high pressure unit through a second high pressure flow path.
차량용 자동변속기의 유압공급시스템이 개시된다. 본 발명의 일 실시 예에 따른 차량용 자동변속기의 유압공급시스템은 엔진에 의하여 구동되면서 오일팬에 저장된 오일을 저압의 유압으로 생성하여 제1 저압유로로 토출하는 저압용 오일펌프; 전동모터에 의하여 구동되면서 상기 제1 저압유로의 유압 일부를 고압으로 승압시켜 제1 고압유로로 토출하는 고압용 오일펌프; 상기 제1 저압유로를 통해 공급되는 유압의 일부를 배출하면서 유압을 조절하여 제2 저압유로를 통해 저압부로 공급하는 저압용 레귤레이터 밸브; 및 상기 제1 고압유로를 통해 공급되는 유압의 일부를 그 압력에 따라 하나의 재순환 유로를 통해 저압부로 재순환시키거나, 두 개의 재순환 유로를 통해 저압부로 재순환시키면서 유압을 조절하여 제2 고압유로를 통해 고압부로 공급하는 고압용 레귤레이터 밸브를 포함한다.
OIL PRESSURE SUPPLY SYSTEM OF AUTOMATIC TRANSMISSION
차량용 자동변속기의 유압공급시스템
11.01.2016
Patent
Elektronische Ressource
Koreanisch
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