AUTOMATIC TRANSAXLE SYSTEM


  1. OUTLINE


    1. A U661E 6-speed Super Electronically Controlled Transaxle (Super ECT) is used on 2WD models with 8AR-FTS engine.

    2. A gate type shift lever with boot is used.

    3. A multi-mode automatic transmission is used.

    4. A drive mode select is provided to select the drive mode (ECO, NORMAL, SPORT*1 or SPORT S/S+*2). In SPORT*1 or SPORT S/S+*2 mode, a higher level of responsiveness and a linear acceleration feel have been achieved.

      *1: Models without adaptive variable suspension system

      *2: Models with adaptive variable suspension system

    5. A Gear Shift Indicator system is used on models for Europe excluding package model options for Russia.

    6. A differential pre-torque mechanism is used. Straightline stability and acceleration performance during periods of low load and low differential rotation when the vehicle is being driven normally are ensured.

    7. An ATF warmer and an ATF cooler with transmission oil thermostat are provided in the ATF cooling system.

    8. An electric oil pump is positioned parallel to the hydraulic circuit of the mechanical oil pump to ensure the oil pressure in order to achieve shock reduction and responsiveness when starting the engine from an idling stop. As a result, a smooth start off is made possible. For details, refer to 8AR-FTS IDLING STOP CONTROL.

  2. SPECIFICATION

    Automatic Transaxle Assembly
    Transaxle Type U661E
    Gear Ratio 1st 3.300
    2nd 1.900
    3rd 1.420
    4th 1.000
    5th 0.713
    6th 0.608
    Reverse 4.148
    Differential Gear Ratio*1 4.398
    Fluid Type Toyota Genuine ATF WS
    Fluid Capacity*2 Liters (US qts, Imp. qts) 6.7 (7.1, 5.9)
    Weight (Reference)*3 kg (lb) 94.5 (208.3)

    *1: Counter gear ratio included

    *2: Differential fluid included

    *3: The weight shown is the weight of the part fully filled with fluid.

    C1 No. 1 Clutch No. of Discs 4
    C2 No. 2 Clutch 3
    B1 No. 1 Brake 4
    B2 No. 2 Brake 5
    B3 No. 3 Brake 3
    F1 No. 1 1-way Clutch No. of Rollers 20
    Ravigneaux Planetary Gear Unit No. of Front Sun Gear Teeth 27
    No. of Rear Sun Gear Teeth 30
    No. of Long Pinion Gear Teeth 20
    No. of Short Pinion Gear Teeth 22
    No. of Ring Gear Teeth 69
    Underdrive Planetary Gear Unit No. of Sun Gear Teeth 66
    No. of Pinion Gear Teeth 21
    No. of Ring Gear Teeth 110
    Counter Gear No. of Drive Gear Teeth 44
    No. of Driven Gear Teeth 47
    Torque Converter Assembly
    Torque Converter Assembly Type 3-element, 1-step, 2-phase
    Stall Torque Ratio 1.77