CVT SYSTEM


  1. CONSTRUCTION


    1. Shift solenoid valves DS1, DS2, DSU and SL use a 3-way solenoid valve.


      1. Shift solenoid valve DS1 controls acceleration by increasing the fluid flow volume to the primary pulley.

      2. Shift solenoid valve DS2 controls deceleration by increasing the fluid flow volume from the primary pulley.

      3. Shift solenoid valve DSU is used for the lock-up clutch pressure control.

      4. Shift solenoid valve SL switches the control of shift solenoid valve SLS.

        A00YY43C01
        *a Off Condition *b On Condition
        A00YYR0 Drain A00YYDY Control Pressure
        A00YYOW Line Pressure - -

    2. Shift solenoid valve SLS uses a linear solenoid valve.


      1. Shift solenoid valve SLS controls the hydraulic pressure applied to the secondary pulley in order to control the belt clamping pressure necessary for transmitting torque.

      2. The action of shift solenoid valve SL controls the line pressure during forward clutch engagement.

        A00YYABE01
        Function of Shift Solenoid Valve
        Shift Solenoid Valve Function
        Shift Solenoid Valve DS1 Controls the fluid inflow volume to the primary pulley.
        Shift Solenoid Valve DS2 Controls the fluid outflow volume to the primary pulley.
        Shift Solenoid Valve DSU Controls the lock-up clutch pressure.
        Shift Solenoid Valve SL Switches the control of the shift solenoid valve SLS.
        Shift Solenoid Valve SLS

        • Controls the belt clamping pressure.

        • Controls the line pressure.