Audi 2012 Annual Report Download - page 185

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188
Modular efficiency platform
Audi’s modular efficiency platform brings together all technologies that contribute towards a
further reduction in CO2 emissions and fuel consumption. It comprises various components from
a large number of technology areas, such as engines, auxiliaries, transmissions, energy manage-
ment, body manufacturing and driver assistance systems.
Along with forthcoming model changeovers and product improvements, the range of innovative
technologies from the modular efficiency platform will steadily be broadened and gradually be
introduced for all car lines of the Audi brand. For example, most models of the Audi brand are
now already fitted with a start-stop system as standard. When the Audi Q5 was revised in the
past fiscal year, the fuel efficiency of the TFSI and TDI engines was improved by up to 15 percent
on average despite their increased performance and higher torque. The range of TDI engines for
the Audi Q5 culminates in the comprehensively modified 3.0 TDI, which has as its particular
features low internal friction, a demand-controlled oil pump and advanced thermal management.
The crankcase and cylinder heads have separate coolant circuits connected by valves.
On the new A3 Sportback, the technologies from the modular efficiency platform have helped cut
consumption by nine percent on average compared with the predecessor model.
THE AUDI MODULAR EFFICIENCY PLATFORM
Audi ultra
Over recent years, tougher safety requirements and higher comfort and convenience expectations
in particular have driven up vehicle weights. However, 100 kilograms less weight can trim a
vehicle’s fuel consumption by around 0.3 liters per 100 kilometers. The principle of lightweight
construction, and therefore the reversal of the weight spiral, are consequently fundamental to
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
Audi ultra lightweight construction
►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
►multitronic
►Freewheeling function
Engines
►TDI
►TDI clean diesel
►Common rail technology
►FSI
►TFSI
►Audi valvelift system
►Hybrid technology
►Cylinder on demand