Description

GENERAL INFORMATION

W1CJA and F1CJA models has been established.





[F1CJA]






TRANSAXLE

The transaxle consists of the torque converter and gear train. The three-element, one-stage, two-phase type torque converter with a built-in torque converter clutch has been adopted. The gear train of W1CJA transaxle consists of 1 set of multi-disc type clutches, 1 set of multi-disc type brakes, and 1 set of planetary gears which are composed of a sun gear, carrier, annulus gear, 2 sets of pulleys and 1 set of steel belts.

TRANSAXLE CONFIGURATION DRAWING





COMPONENTS AND FUNCTIONS










SECTIONAL VIEW






ELECTRONICALLY-CONTROLLED SYSTEM

INVECS-III CONTROL

INVECS-III has been newly developed based on INVECS-II utilizing continuous variable characteristics of CVT.





To select the pulley ratio which can provide the driving force corresponding to the driver's intention and vehicle conditions, TCM selects the optimal pulley ratio and determines the shift strategy to obtain it by detecting the vehicle driving conditions such as the vehicle speed, accelerator angle. Then, it outputs the command to the stepper motor, controls in/out flow of the line pressure to/from the primary pulley, positions the movable pulley of the primary pulley, and controls the gear ratio.

ENGINE BRAKE FEATURE ON THE DESCENDING SLOPE

Pulley ratio is controlled to obtain the engine brake suitable for the driver's feelings.

Engine brake learning feature on the descending slope





Learning compensation is made to meet the tastes of a driver by judging the amount of the engine brake from the application of the accelerator or the brake.

DRIVING FEATURE ON THE ASCENDING SLOPE





If the foot leaves the accelerator pedal during driving on the ascending slope (called lift foot), driving capability is secured by preventing excessive upshifting.

Learning feature corresponding to tastes and habits of drivers





Ratio patterns are continuously switched according to the driving method of a driver.

SYSTEM CONSTRUCTION DIAGRAM





RATIO PATTERN

[2.0L ENGINE - D RANGE]





[2.4L ENGINE - D RANGE]





The shift change is performed in the entire shift range from the lowest to the highest pulley ratio.





By limiting the shift range to the area around the lowest pulley ratio, the powerful driving force and engine brake is secured.





When the sport mode is switched ON with the selector lever or paddle shift, the fixed shifting line is determined. The upshift/downshift operation enables to shift in steps according to the predetermined shifting line, providing M/T-like shifting. The 6-speed transmission which is suitable for sporty driving is adopted.

DIRECT CONTROL (TORQUE CONVERTER CLUTCH CONTROL)

[2.0L ENGINE]





[2.4L ENGINE]





By carefully controlling the direct operating pressure depending on the driving conditions, the shock-free direct operation from low speed has been achieved.