HYDRAULIC CONTROL SYSTEM OF DOUBLE PISTON CLUTCH UNIT FOR AUTOMATIC TRANSMISSION

• Main Authors: CHAE, Minho, KIM, Chon Ok, SHIN, Yong Uk
• Format: Patent
• Language: English
• Published: 20.06.2019
• Subjects: BLASTING; BRAKES; CLUTCHES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

A hydraulic control system of double piston clutch device configured for an automatic transmission, which includes clutch drum connected to one rotation element, a clutch configured in the clutch drum and configured to transmit rotation power in connection with another rotation element through a clutch hub, and a double piston in which first and second pistons are disposed in series to operate the clutch by hydraulic pressure while a front end is disposed to correspond to the clutch, may include a first hydraulic chamber formed between the first piston and the clutch drum to receive the hydraulic pressure through a first passage hole in a sealed state; and a second hydraulic chamber formed between the first and second pistons to receive the hydraulic pressure through a second passage hole in the sealed state and the hydraulic pressure separately controlled is supplied to the first and second hydraulic chambers, respectively.