Solution

TCU Shifting Calibration

NuoVolta provides a ready TCU Shifting Calibration solution for 3 ECUs, including Temic DQ200, Bosch DQ500 and Aisin AL1000. Select your ECU below to see the details.

TCU SHIFTING CALIBRATION

Shifting calibration is the adjustment of the shift maps stored in the transmission control unit (TCU). These maps determine at which engine speed, throttle position and load the transmission shifts up or down in each driving mode, such as comfort, eco or sport.

With this module, the shifting behaviour of the transmission is recalibrated for more consistent and responsive gear changes, for example after engine tuning or when the factory shift strategy does not suit the vehicle's use.

FUNCTION OF SHIFTING CALIBRATION

1. Upshift and Downshift Points:

The RPM and load at which the transmission changes gear are adjusted, for example to hold gears longer under acceleration or to avoid unnecessary downshifts.

2. Shift Behaviour:

The calibration affects how quickly and how firmly gear changes are made.

3. Driving Modes:

The shift maps of the different driving modes can be optimized separately.

PROBLEMS OF FACTORY SHIFTING

Early upshifts and lack of response during acceleration
Gear hunting (frequent shifting between two gears)
Delayed downshifts when overtaking
Shift points not matched to the power band of a tuned engine

NUOVOLTA SOLUTION OF TCU SHIFTING CALIBRATION

NuoVolta provides a ready solution for this module, applied by the NuoVolta client to the original TCU file.

Apply the solution of the module related to NUOVOLTA.
Write the mod file to the TCU.
If required, reset the transmission adaptations with a diagnostic tool.
Check the dashboard and DTC logs. Take it for a test drive.
If all the checks are OK, it means the mod file is correct.

Note: Changes to the shift strategy affect driving behaviour and the load on the transmission. The modification should be used responsibly and in compliance with local regulations.

ECUs supported for TCU Shifting Calibration

Grouped by ECU manufacturer, most requested first.

Diagnose and repair real faults first. Removing or disabling emission systems is only permitted where allowed by law, for example for off-road or motorsport use.

Ready to work with the TCU Shifting Calibration?

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