Hydraulic System

Hydraulic Systems

Valve Body
The valve body supplies transmission fluid by switching the transmission fluid circuit for the hydraulic pressure that is generated by the transmission fluid pump. Based on the hydraulic pressure generated by the transmission fluid pump the transmission control module (TCM) sends control signals to the solenoid valves in accordance with vehicle conditions. When the solenoid valve is activated, the control hydraulic pressure to the clutch and brakes is determined (according to the equilibrium with the obtained hydraulic pressure) and gear shift and lockup are accomplished. In addition, an appropriate amount of transmission fluid is supplied to the torque converter, planetary gears and lubricating parts.