CVT SYSTEM GENERAL

  1. OUTLINE

    1. A K311 Continuously Variable Transmission (CVT) is used on the models with the 2ZR-FAE engine.

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

    3. A gate type shift lever is used.

  2. SPECIFICATION

    CVT Assembly
    Shift Mechanism Type Pulley and Steel Belt
    Forward/Reverse Switching Mechanism Double Pinion Type Planetary Gear
    Pulley Ratio Forward 2.386 to 0.411
    Reverse 2.505
    Final Gear Ratio 5.698
    Fluid Capacity 7.7 Liters (8.14 US qts, 6.78 Imp. qts)
    Fluid Type Toyota Genuine CVT Fluid TC
    Weight (Reference) 68.7 kg (151.1 lb)
    Friction Disc and Gears
    Planetary Gear No. of Sun Gear Teeth 40
    No. of No. 1 Pinion Gear Teeth 18
    No. of No. 2 Pinion Gear Teeth 17
    No. of Ring Gear Teeth 82
    Reduction Gear Drive Gear 25
    Driven Gear 37
    Forward Clutch No. of Discs 3
    Reverse Brake No. of Discs 3
    Torque Converter Clutch Assembly
    Torque Converter Clutch Type 3-element, 1-step, 2-phase
    Stall Torque Ratio 1.75

  3. MAIN FEATURES

    1. The K311 CVT has achieved the following performance features through the use of these items:

      Item Fuel Economy Power Efficiency Driveability Quietness
      Pulley and Steel Belt ○ ○ ○ ○
      Torque Converter Clutch Assembly ○ ○ ○ ○
      Oil Pump Assembly ○ ○ ○ -
      Forward/Reverse Switching Unit - ○ ○ -
      Transmission Valve Body Assembly ○ ○ ○ -
      Electronic Control Engine - CVT Integrated Control ○ ○ ○ -
      Pulley Ratio Control Automatic Shift Control ○ - ○ -
      Acceleration Improvement Control - ○ ○ -
      7-speed Sport Sequential Shiftmatic - - ○ ○
      Shift Control in Uphill/Downhill Traveling - - ○ -
      Lock-up Control ○ - - ○