A DEVICE FOR CONTROLLING HYDRAULIC PRESSURE OF A HYDRAULIC ACTUATOR IN A CAR

The present invention relates to a device for controlling a hydraulic pressure of a hydraulic actuator of a vehicle which supplies a hydraulic fluid to an actuator for operating a hydraulic clutch of a vehicle to control an operation of the hydraulic clutch. The device for controlling a hydraulic pr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: LEE, HAN GU
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:The present invention relates to a device for controlling a hydraulic pressure of a hydraulic actuator of a vehicle which supplies a hydraulic fluid to an actuator for operating a hydraulic clutch of a vehicle to control an operation of the hydraulic clutch. The device for controlling a hydraulic pressure of a hydraulic actuator of a vehicle comprises: a main hydraulic line to supply a hydraulic fluid to an actuator; a hydraulic supply line to supply the hydraulic fluid to the main hydraulic line; a hydraulic pump to pump the hydraulic fluid of a hydraulic fluid supply source to supply the hydraulic fluid to the hydraulic supply line; a main collection line to collect the hydraulic fluid from the main hydraulic line to the hydraulic fluid supply source; a direction changing valve to selectively connect the main hydraulic line to the hydraulic supply line or the main collection line; a sub-collection line to collect the hydraulic fluid on the hydraulic supply line to the hydraulic fluid supply source; and an opening/closing valve linked to the hydraulic pump to open and close the sub-collection line. A collection speed of the hydraulic fluid can be increased, and durability of the hydraulic pump can be improved. 본 발명은 차량의 유압클러치를 작동시키는 액추에이터에 작동유를 공급하여 유압클러치의 동작을 제어하는 차량의 유압식 액추에이터의 작동유압 제어장치에 관한 것으로, 액추에이터에 작동유를 공급하는 메인유압라인, 메인유압라인으로 작동유를 공급하는 유압공급라인, 작동유 공급원의 작동유를 펌핑하여 유압공급라인으로 공급하는 유압펌프, 메인유압라인으로부터 작동유 공급원으로 작동유가 회수되는 메인회수라인, 메인유압라인을 유압공급라인이나 메인회수라인과 선택적으로 연통시키는 방향전환밸브, 유압공급라인상의 작동유가 작동유 공급원으로 회수되는 서브회수라인, 및 유압펌프와 연동하여 서브회수라인을 개폐하는 개폐밸브를 포함하여, 작동유의 회수속도를 높일 수 있고 유압펌프의 내구성을 향상시킬 수 있게 된다.