AUTOMATIC TRANSAXLE SYSTEM


  1. CONSTRUCTION


    1. A compact, lightweight and high-capacity torque converter is used. The construction of the one-way clutch has been simplified to achieve a shortened axis length.

    2. This torque converter has appropriately designed impeller configuration and fluid passages, resulting in substantially enhanced transmission efficiency to ensure good starting, acceleration and fuel economy.

    3. Furthermore, a hydraulically operated lock-up mechanism which cuts power transmission losses due to slippage at medium and high speeds is used.

    4. In addition to using a high heat-resistance lock-up friction material and 3-way cooling path, flex start control is provided. Flex lock-up is performed after starting off to make smooth starting off possible and reduce slip losses at the same time. A low speed lock-up damper, which makes low speed lock-up possible in all gear shifting positions after starting off, is also used to achieve high fuel economy performance.

    5. A dedicated stator for turbocharged engines, which contributes to improving the acceleration response of the turbocharged engine, is used.

    6. A dedicated lock-up damper for turbocharged engines is used to make lock-up possible at low vehicle speeds to improve motive force transmission efficiency. Furthermore, it allows the use of torque at the low engine speeds characteristic of a turbocharged engine, achieving excellent fuel economy and transmission performance.

      A01R7WLC02
      *1 Lock-up Damper *2 1-way Clutch
      *3 Lock-up Clutch *4 Stator
      *5 Pump Impeller *6 Turbine Runner

    7. The 3-way cooling path has a dedicated cooling path provided on the lock-up ON pressure circuit side (between the input shaft and stator shaft). Cooling performance is improved to expand the lock-up range and achieve improved fuel economy.

      A01R8L6C01
      *a Lock-up not Operating *b Flex Lock-up Operating
      *c OFF Pressure Circuit *d ON Pressure Circuit
      B007WJ2 ATF Flow - -