Hill Recognition Function

Hill Recognition Function

The control module activates this feature when it detects a high engine load (constant driving resistance) condition at lower road speeds. When the vehicle is traveling up hill the shift points are raised to prevent repetitive up/down shifting.

The parameters that reside in the control module for this feature include vehicle weight, gearbox, differential ratio, rolling resistance and wind resistance.

To adapt for performance reduction of the engine at high altitude, the uphill adaptation is influenced by the altitude compensation function in the ECM.