AMT: CO2 emissions and Fuel Consumption
In ECE emission cycle conditions AMT can achieve the best performance in terms of CO2 emissions and fuel consumption vs any other transmission.
Emission Cycle Performance
This achievement is the consequence of:
- High efficiency of the basic transmission (the same of manual transmission)
- Shift point optimization in automatic mode
Typical AMT performance in ECE cycles is (B and C class vehicles):
- less 5% Fuel Consumption vs manual transmission
- less 10% Fuel Consumption vs automatic transmission
Real traffic performance
In real traffic conditions fuel savings can be even higher.
In such conditions, manual car drivers usually avoid frequent shifting and hold gear up to high engine revs.
As a consequence the engine is kept in high consumption working points.
The AMT transmission grants proper ratio and keeps the engine in low consumption working points.
Typical AMT performance in real traffic condition:
- less 10% Fuel Consumption vs normal driver of a manual transmission
Over-drive and highway drive
Further fuel saving and emission reduction can be achieved by AMT overdrive gear ratios.
In manual transmissions, high gear ratios are decided as a compromise between fuel consumption and vehicle acceleration performance.
If a consumption oriented ratio (over-drive) is used in manual transmissions, the vehicle acceleration in top gear is not acceptable.
AMT, thanks to its kick-down function, can foresee overdrive top gear ratios, and grant further savings in highway driving.
Typical AMT advantage in combination with an over-drive top gear:
- less 4% Fuel Consumption in highway driving vs manual transmission (Diesel engines)
- less 8% Fuel Consumption in highway driving vs manual transmission (Gasoline engines)
