Audi 2011 Annual Report Download - page 175

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172
The hybridization process is to be rolled out across other car lines, too. In developing future
product generations, the Audi brand will prioritize plug-in hybrids with batteries that can also
be recharged from the grid.
Modular efficiency platform
The Audi brand’s modular efficiency platform brings together all technologies that help to
realize further reductions in fuel consumption and CO₂ emissions. It comprises components
from diverse areas of technology, such as engines, auxiliaries, transmissions, energy manage-
ment, body manufacturing and driver assistance systems.
The modular efficiency platform is being steadily widened; innovative technologies such as the
freewheeling function, cylinder on demand and electromechanical steering were added in 2011.
At the same time, the existing components are being rolled out across the entire range. For
example, most models of the Audi brand are now already fitted with a start-stop system as
standard.
THE AUDI MODULAR EFFICIENCY PLATFORM
Assistance systems
►Economical route guidance
►Dynamic congestion avoidance
►Gear-change indicator
►Audi adaptive cruise control
with stop&go function
►LED daytime running lights
►Driver information system
with efficiency program
►Audi drive select with
“efficiency” mode
Ancillaries
►Electromechanical steering
►Improved hydraulic steering
►On-demand control of ancillaries
Lightweight design
►Audi Space Frame (ASF)
►Innovative combinations of materials
Driving and rolling resistance
►Aerodynamic measures
►Tires with optimized rolling
resistance
Energy management
►Highly efficient
air conditioning
►Energy recovery
►Start-stop system
►Innovative thermal
management
Transmission
►6-speed and 7-speed S tronic dual-clutch
transmission
►8-speed tiptronic
►R tronic
►multitronic
►Freewheeling function
Engines
►TDI
►TDI clean diesel
►Common rail technology
►FSI
►TFSI
►Audi valvelift system
►Hybrid technology
►Cylinder on demand
Freewheeling function
Another technology has been added to the modular efficiency platform in the shape of the
freewheeling function in the new Audi Q3, available in conjunction with the 7-speed S tronic
dual-clutch transmission.
To use the freewheeling function, the “efficiency” mode must be activated in the optional driving
dynamics system Audi drive select. When coasting, in other words when the vehicle is moving
purely under its own momentum, such as when rolling downhill, the clutch opens. The compact
premium SUV then freewheels, reducing its fuel consumption.