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HIGH TORQUE AND HIGH REVS
12 April 2006 - Bosch
Gasoline direct injection from Bosch in the new Audi TT
Bosch is supplying the gasoline direct injection equipment for the 2.0-
liter turbocharged engine in the new Audi TT. The combination of direct
injection and turbocharging turns the engine into a high-torque, high-
revving power pack. The gasoline direct injection improves the torque
curves of turbocharged engines over the entire range of engine speeds.
Starting acceleration, in particular, is increased, and the maximum
torque is available even at low engine speeds. Driving is therefore more
enjoyable, power is available at any speed, and the efficiency of the
engine is increased. When fitted with gasoline direct injection from Bosch, the 2.0-liter
turbocharged engine for the Audi TT generates 147 kilowatts, and develops
its high maximum torque of 280 newton-meters even at engine speeds as low
as 1800 revs per minute. In addition to the Audi TT, differently powered
versions of the engine are also used, for instance, in the Audi A3, A4
and A6, as well as in the Volkswagen Golf GTI. EVEN MORE TORQUE IN FUTURE, WITH YET LOWER CONSUMPTION
Generally speaking, the interaction of direct injection and
turbocharging in turbocharged DI gasoline engines will in the future
permit even greater specific torque figures and even more power.
Turbocharging and gasoline direct injection are, moreover, the technical
basis for the ''downsizing designs'' that permit further increases in
efficiency. In a ''downsized'' engine, conventional, naturally aspirated
engines are replaced by smaller, turbocharged engines that deliver the
same power. With direct injection, a one-third reduction engine
displacement allows fuel savings of up to 15 percent, yet the same level
of power is generated. In addition to gasoline direct injection, components supplied by Bosch
for the Audi TT include the Motronic engine control units for the six-
cylinder engine, engine sensors such as speed sensors, pressure sensors,
and lambda sensors, airbag controllers including upfront and pressure
sensors for fast, reliable collision detection, as well as starters and
alternators. The switching commands for many electrical consumers, such
as the wipers and lights, are transmitted through the Bosch vehicle
network controller. And the Bosch subsidiary Blaupunkt supplies radios
and navigation systems for the Audi TT. The Bosch Group is a leading global manufacturer of automotive and
industrial technology, consumer goods, and building technology. In fiscal
2005, some 250,000 associates generated sales of 42 billion euros. Set up
in Stuttgart in 1886 by Robert Bosch (1861-1942) as ''Workshop for
Precision Mechanics and Electrical Engineering,'' the Bosch Group today
comprises a manufacturing, sales, and after-sales service network of some
270 subsidiaries and more than 12,000 service centers in over 140
countries. The special ownership structure of the Bosch Group guarantees its
financial independence and entrepreneurial freedom. It makes it possible
for the company to undertake significant up-front investments in the
safeguarding of its future, as well as to do justice to its social
responsibility in a manner reflective of the spirit and will of its
founder. 92 % of the shares of Robert Bosch GmbH are held by the
charitable foundation Robert Bosch Stiftung. The entrepreneurial
ownership functions are carried out by Robert Bosch Industrietreuhand KG. Additional information can be accessed at www.bosch.com.
www.bosch-presse.de
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