DRIVER ADAPTIVE SHIFT CONTROL OUTLINE [AY6A-EL, AY6AX-EL]

id0517k3225800

• The AY6A (X) -EL automatic transaxle does not have a driving mode selection switch that allows drivers to select a mode themselves. The vehicle is ordinarily in NORMAL mode. However, the TCM automatically selects an appropriate shifting pattern when specific conditions are met.

Mode | Description
--- | ---
NORMAL | • Used during normal driving.The economy or sports mode is automatically selected according to the condition.
AAS | • In this mode, shift point and TCC point settings are higher than in the normal driving condition for generating high engine speed and output.
MANUAL | (See MANUAL MODE SHIFT CONTROL OUTLINE [AY6A-EL, AY6AX-EL].)
HIGH TEMP | • When ATF temperature becomes too high, this mode activates TCC at an earlier timing to stop the temperature rise and lower the temperature.
CRUISE CONTROL | • When cruise control is ON, gears are fixed to perform smooth driving.
DOWN-SLOPE | • When driving down a slope, TCM detects a down-slope based on the PCM signal and output rpm. TCM switches to DOWN-SLOPE mode to alleviate the load to the brake, etc.
UP-SLOPE | • When driving up a slope, TCM detects an up-slope based on the PCM signal and output rpm. TCM switches to UP-SLOPE mode to prevent driving force drop.
COLD | • TCM detects that the engine is cold based on the signal (engine coolant temperature signal) from the PCM when the ignition switch is on. TCM switches to COLD mode to improve warm-up performance.

Active Adaptive Shift (AAS) Mode

• When certain conditions are met, AAS mode is automatically selected from normal mode. In AAS mode, the shift point is set higher than the normal shift point so that high-engine speed, high-output conditions are available.
• AAS mode is canceled when the vehicle speed remains constant (stable vehicle behavior).

Conditions for switching to active adaptive shift (AAS) mode

  • The accelerator pedal is depressed fully to accelerate rapidly while driving in D position.
  • Rapid acceleration or deceleration continues for a certain period of time while driving in D position.

Shift control in active adaptive shift (AAS) mode

  • Shift control is performed according to the shift pattern in AAS mode.
  • When the driver releases the accelerator pedal fully and rapidly, the gear position is maintained at the position before accelerator pedal was released. Due to this, re-acceleration and vehicle control performance have been improved. If the accelerator pedal is released slowly, the gears shift up according to the shift pattern.
  • While cornering the vehicle, the gear position is maintained at the position before the vehicle was cornered to facilitate re-acceleration after the corner. The gears do not shift up if the accelerator pedal is depressed fully while cornering the vehicle.

Forced cancellation of active adaptive shift (AAS) mode

  • AAS mode is forcibly cancelled under the following conditions:
    ― The vehicle speed in the cruise control system is reset.
    ― The selector lever is shifted to M position while driving in D position.