CVT SYSTEM


  1. OUTLINE


    1. A K313 Continuously Variable Transaxle (CVT) is used on models with the 1ZR-FAE or 8NR-FTS engine.

    2. A 7-speed sport sequential shiftmatic mode is used.

    3. A pattern select switch assembly is used.

    4. A gate type shift lever is used.

    5. A shift lock system is used to prevent the shift lever from being wrongly operated.

    6. A coaxial 2 discharge port oil pump system is used.

  2. SPECIFICATION

    Torque Converter Assembly
    Item Specification
    Engine Type 1ZR-FAE 8NR-FTS
    Torque Converter Assembly Type 3-element, 1-step, 2-phase
    Stall Torque Ratio 1.66 1.90
    Continuously Variable Transaxle
    Item Specification
    Engine Type 1ZR-FAE 8NR-FTS
    Shift Mechanism Electrohydraulic Control Type Steel-Belt Continuously Variable Transmission
    Forward/Reverse Switching Mechanism Electronic Control Type Planetary Gear
    Pulley Ratio (Speed Ratio) Forward 2.480 to 0.396
    Reverse (Planetary gear ratio included) 2.604 to 1.680
    Differential Gear Ratio (Reduction gear ratio included) 5.698 5.045
    Shift Pattern P - R - N - D - M
    Fluid Capacity Liters (US qts, Imp. qts) 7.47 (7.9, 6.6)
    Fluid Type Toyota Genuine CVT Fluid FE
    Weight (Reference)* kg (lb) 74.2 (163.6) 78.3 (172.6)

    *: The weight shown is with the transaxle fully filled with fluid.

    Gears and Friction Discs
    Item Specification
    Engine Type 1ZR-FAE 8NR-FTS
    Planetary Gear Sun Gear No. of Teeth 40
    No. 1 Pinion Gear No. of Teeth 18
    No. 2 Pinion Gear No. of Teeth 17
    Ring Gear No. of Teeth 82
    Forward Clutch No. of Discs 3
    Reverse Brake No. of Discs 3
    Reduction Gear Drive Gear No. of Teeth 25
    Driven Gear No. of Teeth 37
    Differential Gear Drive Pinion No. of Teeth 20 22
    Ring Gear No. of Teeth 77 75

  3. MAIN FEATURES


    1. The K313 CVT has achieved the following performance through the use of the items listed below.

      Item Fuel Economy Power Efficiency Driveability Quietness Compact and Lightweight
      Pulley and Belt Type Shift Mechanism ○ ○ ○ ○ ○
      Double Pinion Type Forward/Reverse Switching Mechanism ○ ○ ○ - ○
      Torque Converter with Lock-up Clutch ○ ○ ○ ○ ○
      High Pressure 2 Discharge Port Oil Pump ○ ○ ○ - ○
      CVT Fluid Warmer (Transmission Oil Cooler) ○ - - - -
      High-pressure Hydraulic Control Circuit (Valve Body Unit) ○ ○ ○ - -
      Gear & CVT Belt Noise Reduction - - - ○ -
      Electronic Control System Engine-CVT Integrated Control ○ ○ ○ - -
      Automatic Shift Control ○ ○ ○ - -
      Acceleration Improvement Control - ○ ○ - -
      Deceleration Improvement Control - - ○ - -
      7-speed sport sequential shiftmatic mode (with Shift Paddle Switch (Transmission Shift Switch Assembly)*) - - ○ - -
      Uphill/Downhill Shift Control - - ○ - -
      Lock-up Control ○ - ○ - -
      Flex Lock-up Control ○ - ○ - -
      Neutral Control ○ - - - -

      ○: Applicable

      -: Not applicable

      *: Models with shift paddle switch (transmission shift switch assembly)

  4. PRECAUTION


    1. Ignition Switch Expressions


      1. The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section.

        Expression

        Ignition Switch

        (Position)

        Engine Switch

        (Condition)
        Ignition Switch off LOCK Off (LOCK)
        Ignition Switch ACC ACC On (ACC)
        Ignition Switch ON ON On (IG)
        Engine Start START On (Start)