DSG & Auto Gearbox Remapping
What can be improved?
A common limitation of Automatic Gearboxes is the software-imposed torque cap that prevents tuned cars from exceeding this value even if the engine can produce more power. A workaround for this is to ‘fool’ the Gearbox control unit into thinking the torque is lower. However, this method is not ideal for high-performance vehicles that require maximum control. We can adjust this torque cap to higher levels or eliminate it altogether in some cases.
Forced Up Shift
Some drivers may find the automatic gear shifting in manual mode unsatisfactory, as forced upshifts can interfere with their preferred driving style and limit their control over the vehicle. This feature can be adjusted or turned off completely, depending on the driver’s needs. This can improve the performance and enjoyment of driving on fast roads or tracks.
To get the perfect launch off the “line” we can optimise the system to maintain a specific RPM limit when the car is not moving. This will allow the car to achieve an ideal combination of power and grip for a fast and smooth start with minimal wheel spin.
Types of DSG/DCT Transmissions
A direct-shift gearbox or DSG is a type of automatic gearbox that uses two clutches and two sets of gears to change gears quickly and smoothly. It was developed by BorgWarner and licensed to the Volkswagen Group. Unlike a traditional automatic gearbox, a DSG does not have a torque converter that reduces efficiency. Instead, it uses an electronic system that predicts the next gear based on the driving conditions and pre-selects it for faster shifting. A DSG can be controlled by the driver using paddles or a selector lever, or it can operate fully automatically.
DSG gearboxes are a terminology formulated by the VW, Audi Group to designate their DCT gearboxes, DCT stands Dual Clutch Transmission, and DCTs can be found in many other manufacturers vehicles under a variety of brand specific terminology, however they all share similar performance benefits offered by the Dual Clutch mechanical setup.
DSG gearboxes were first used in racing cars by Porsche in the 1980s, and then introduced to the public in 2003 in the Volkswagen Golf R32 and Audi TT 3.2. Since then, they have been used in various models across the Volkswagen Group brands, such as Skoda and SEAT. Some of them are called S-Tronic by Audi. There are different versions of DSG gearboxes, depending on the engine power and layout. The most common ones are the six-speed wet-clutch DSG (DQ250) and the seven-speed dry-clutch DSG (DQ200). The wet-clutch DSG can handle more torque and is more suitable for high-performance engines, while the dry-clutch DSG is lighter and more fuel-efficient, but less durable.
When we remap an ECU, we read the original/standard file from the ECU that contains the “maps” mentioned above that run the engine, this is then taken by one of our experts in the file team where they modify a variety of operating parameter within the map such as Ignition timing, fuel pressure, torque settings, boost pressure amongst many others in order to unleash this lost power and in a lot of cases a leap in fuel economy as well.