Adaptive Shift Strategies

The TCM of the six speed ZF automatic transmission incorporates adaptive strategies which improve the accessibility of the vehicle`s performance in driving conditions while maintaining a relaxed driving experience when cruising.

In "Sport" mode, accelerator pedal usage and cornering behavior are monitored to assess driving style and road conditions. When an enthusiastic driving style or a demanding road is detected, 6th gear is inhibited and the lower gears are made slightly more accessible in order to prevent unwanted "hunting" between gears. Conversely, when cruising conditions are detected, 6th gear is once again made available to maximize driving refinement and economy.

Under conditions of heavy braking, the transmission will perform one or more downshifts to improve response to a subsequent accelerator pedal application. Similarly if the accelerator pedal is released rapidly following hard acceleration, one or more upshifts are inhibited to increase engine braking and also improve subsequent response.

To complement these features, when a corner is detected transmission upshifts are inhibited. This inhibition is also maintained for a short distance after the corner allowing the driver to achieve a smooth balance through the bend without unwanted shifting mid-corner.