Audi reveals new 2.0 TFSI engine
05-07-15, 11:50 AM
#1
Audi reveals new 2.0 TFSI engine
Ingolstadt/Vienna, 2015-05-07
World premiere at the Vienna Motor Symposium: new high-efficiency engine from Audi
- New 2.0 TFSI four-cylinder engine with innovative combustion method
- Top figures: 190 hp, 320 Nm (236.0 lb-ft), less than 5 l/100 km (47.0 US mpg)
- To be implemented in the new Audi A4 by the end of 2015
- Prof. Dr. Ulrich Hackenberg: "A prime example of the Audi rightsizing strategy"
Audi presents the most efficient two-liter gasoline engine in its class. The new 2.0 TFSI with 140 kW (190 hp) demonstrates the engine expertise of the brand – with a ground-breaking new combustion method. Audi will be using the engine for the first time in the next generation of the A4.
Over ten years ago, Audi was the first manufacturer worldwide to bring the TFSI engine with turbocharging and direct injection into series production. This made the brand with the four rings the trendsetter in downsizing and downspeeding. "We're now taking a crucial step further with rightsizing," said Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at AUDI AG. The reduction in displacement and engine speed can be optimally effective only if reasonably related to the vehicle class and the customers' everyday use, explains the Technical Director. "Rightsizing thus involves the optimal interplay of vehicle class, displacement, output, torque and efficiency characteristics under everyday conditions. Our new 2.0 TFSI is a prime example of Vorsprung durch Technik."
The four-cylinder engine draws 140 kW (190 hp) of power and 320 Nm (236.0 lb-ft) of torque from a displacement of 1,984 cc. Because the high torque is applied in a wide speed range of 1,450 to 4,400 rpm, every customer will benefit from the constantly accessible, high pulling power of the engine. The engine also boasts of groundbreaking low fuel consumption levels. With consumption levels less than 5.0 l/100 km (47.0 US mpg) in the NEDC, the four-cylinder engine clearly undercuts its predecessor and comparable competitors.
Technology in detail:
The breakthrough of the 2.0 TFSI lies in a new combustion method. At its core its principle is comparable to the Miller cycle. Audi engineers have further developed that method in crucial ways, however. The increase in efficiency is based on the following factors:
- The intake time has been significantly shortened (140° crank angle (CA) rather than 190 to 200° CA).
- Owing to a higher boost pressure on the inlet side, the engine attains optimal cylinder charges despite the shorter intake time.
- The intake valve also closes earlier – well before the bottom dead center is reached. This lowers the medium pressure, allowing a high, efficiency-boosting compression ratio.
- In the partial load range, an additional injection upstream from the intake valve yields an efficient mixture formation that is already complemented by the direct injection in the intake manifold and in the combustion chamber.
- The Audi Valvelift System (AVS) on the inlet side allows a short intake time at partial load and a longer time at higher loads (full load: 170° CA).
Dr. Stefan Knirsch, Head of Engine Development at Audi, sums up the benefits of the new engine: "Thanks to this rightsizing approach, the new engine enjoys the consumption benefits of a downsizing engine in partial load operation, while at higher loads it has the advantages of a large-displacement engine. The result is optimal efficiency and performance characteristics across the entire engine speed range."
Beyond the new combustion method, the new engine, with a weight of only about 140 kg (308.6 lb), avails itself of other efficiency technologies. For example, the coolant flow is controlled so as to greatly shorten the engine warm-up time. Contributing to this benefit is also the exhaust manifold, integrated in the cylinder head. The consistent reduction of friction as well as the use of low-friction engine oil (0W-20) also increases efficiency.
The comprehensive package of high-tech solutions makes the new 2.0 TFSI a real high-efficiency engine that sets a new benchmark in its segment. Audi will be introducing the new generation of engines first in the new Audi A4, and then in other model series.
World premiere at the Vienna Motor Symposium: new high-efficiency engine from Audi
- New 2.0 TFSI four-cylinder engine with innovative combustion method
- Top figures: 190 hp, 320 Nm (236.0 lb-ft), less than 5 l/100 km (47.0 US mpg)
- To be implemented in the new Audi A4 by the end of 2015
- Prof. Dr. Ulrich Hackenberg: "A prime example of the Audi rightsizing strategy"
Audi presents the most efficient two-liter gasoline engine in its class. The new 2.0 TFSI with 140 kW (190 hp) demonstrates the engine expertise of the brand – with a ground-breaking new combustion method. Audi will be using the engine for the first time in the next generation of the A4.
Over ten years ago, Audi was the first manufacturer worldwide to bring the TFSI engine with turbocharging and direct injection into series production. This made the brand with the four rings the trendsetter in downsizing and downspeeding. "We're now taking a crucial step further with rightsizing," said Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at AUDI AG. The reduction in displacement and engine speed can be optimally effective only if reasonably related to the vehicle class and the customers' everyday use, explains the Technical Director. "Rightsizing thus involves the optimal interplay of vehicle class, displacement, output, torque and efficiency characteristics under everyday conditions. Our new 2.0 TFSI is a prime example of Vorsprung durch Technik."
The four-cylinder engine draws 140 kW (190 hp) of power and 320 Nm (236.0 lb-ft) of torque from a displacement of 1,984 cc. Because the high torque is applied in a wide speed range of 1,450 to 4,400 rpm, every customer will benefit from the constantly accessible, high pulling power of the engine. The engine also boasts of groundbreaking low fuel consumption levels. With consumption levels less than 5.0 l/100 km (47.0 US mpg) in the NEDC, the four-cylinder engine clearly undercuts its predecessor and comparable competitors.
Technology in detail:
The breakthrough of the 2.0 TFSI lies in a new combustion method. At its core its principle is comparable to the Miller cycle. Audi engineers have further developed that method in crucial ways, however. The increase in efficiency is based on the following factors:
- The intake time has been significantly shortened (140° crank angle (CA) rather than 190 to 200° CA).
- Owing to a higher boost pressure on the inlet side, the engine attains optimal cylinder charges despite the shorter intake time.
- The intake valve also closes earlier – well before the bottom dead center is reached. This lowers the medium pressure, allowing a high, efficiency-boosting compression ratio.
- In the partial load range, an additional injection upstream from the intake valve yields an efficient mixture formation that is already complemented by the direct injection in the intake manifold and in the combustion chamber.
- The Audi Valvelift System (AVS) on the inlet side allows a short intake time at partial load and a longer time at higher loads (full load: 170° CA).
Dr. Stefan Knirsch, Head of Engine Development at Audi, sums up the benefits of the new engine: "Thanks to this rightsizing approach, the new engine enjoys the consumption benefits of a downsizing engine in partial load operation, while at higher loads it has the advantages of a large-displacement engine. The result is optimal efficiency and performance characteristics across the entire engine speed range."
Beyond the new combustion method, the new engine, with a weight of only about 140 kg (308.6 lb), avails itself of other efficiency technologies. For example, the coolant flow is controlled so as to greatly shorten the engine warm-up time. Contributing to this benefit is also the exhaust manifold, integrated in the cylinder head. The consistent reduction of friction as well as the use of low-friction engine oil (0W-20) also increases efficiency.
The comprehensive package of high-tech solutions makes the new 2.0 TFSI a real high-efficiency engine that sets a new benchmark in its segment. Audi will be introducing the new generation of engines first in the new Audi A4, and then in other model series.
05-07-15, 11:59 AM
#2
Lexus Fanatic
Top figures: 190 hp (236.0 lb-ft)
05-07-15, 12:20 PM
#4
Lexus Champion
new engine, same size, but less power?
05-07-15, 01:01 PM
#5
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Horse power wars over, do you need 250hp in base a4? The new trend is less power and less weight to compensate for less power. This makes the car more agile, entertaining and efficient. Inst that what we want? HP is just a number, just like weight is.
Im sure there will be further iterations that will bump it to 230-240 in 5 years.
Im sure there will be further iterations that will bump it to 230-240 in 5 years.
05-07-15, 01:17 PM
#6
Lexus Fanatic
Well, I, for one, am not a power-freak per se. I don't judge a car (or an engine) solely by its 0-60 times. And I generally don't drive around lead-footing it. But one must also remember that these new 2.0T power plants, not just from VW/Audi from other manufacturers, are essentially supposed to be replacing V6's. And that's one area where the old VW/Audi 2.0T really shined. IMO, it was almost the perfect replacement for a V6.....torque, smoothness, and refinement combined. This new replacement, even with an impressive 40+ MPG, will have its work cut out for it.
05-07-15, 02:26 PM
#7
Anyway, I am sure Audi will have more powerful versions released at the same time, Europeans prefer less hp these days anyway, makes them think it is more efficient.
As to the engine, seems like it is using similar/same tech that Toyota put into new 2.0t in Lexus NX.
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05-07-15, 02:46 PM
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its not going to be 47 US MPG so it is better not to translate silly European MPG to US like that.
Anyway, I am sure Audi will have more powerful versions released at the same time, Europeans prefer less hp these days anyway, makes them think it is more efficient.
As to the engine, seems like it is using similar/same tech that Toyota put into new 2.0t in Lexus NX.
Anyway, I am sure Audi will have more powerful versions released at the same time, Europeans prefer less hp these days anyway, makes them think it is more efficient.
As to the engine, seems like it is using similar/same tech that Toyota put into new 2.0t in Lexus NX.
"The intake valve also closes earlier – well before the bottom dead center is reached. This lowers the medium pressure, allowing a high, efficiency-boosting compression ratio.", aka. Atkinson cycle.
"In the partial load range, an additional injection upstream from the intake valve yields an efficient mixture formation that is already complemented by the direct injection in the intake manifold and in the combustion chamber.", aka. D4-S.
Last edited by ydooby; 05-07-15 at 03:03 PM.
05-07-15, 03:39 PM
#9
I was just about to say it--Audi copied the exact same techs of Atkinson cycle and D4-S from Toyota, although Audi failed to copy Toyota's automatic switch to Otto cycle during high engine loads, hence the much lower peak horsepower output (but perhaps better efficiency).
"The intake valve also closes earlier – well before the bottom dead center is reached. This lowers the medium pressure, allowing a high, efficiency-boosting compression ratio.", aka. Atkinson cycle.
"In the partial load range, an additional injection upstream from the intake valve yields an efficient mixture formation that is already complemented by the direct injection in the intake manifold and in the combustion chamber.", aka. D4-S.
"The intake valve also closes earlier – well before the bottom dead center is reached. This lowers the medium pressure, allowing a high, efficiency-boosting compression ratio.", aka. Atkinson cycle.
"In the partial load range, an additional injection upstream from the intake valve yields an efficient mixture formation that is already complemented by the direct injection in the intake manifold and in the combustion chamber.", aka. D4-S.
05-07-15, 03:47 PM
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http://www.autoblog.com/2007/03/15/l...tuners-cringe/
05-07-15, 03:49 PM
#11
Pole Position
I think the current 225hp 2.0 is rated 40mpg combined in Germany. Of course that's no where near the truth cause if you can make it 24mpg combined you are driving it properly.
05-07-15, 04:13 PM
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1. The NX200t AWD gets the same combined fuel economy of 24mpg as the X3 xDrive28i in EPA's test cycles.
2. We can reasonably expect the upcoming IS200t, which uses the same engine as the NX200t, to get about the same fuel economy as the 328i, a car in the same class as the IS200t and uses the same engine as the X3 xDrive28i.
3. The fuel economy of the 328i, which uses the same turbo 2.0 as the X3 xDrive28i, is rated at 6.3L/100km (combined) in NEDC.
4. The fuel economy of the 320i, which uses a detuned engine from the 328i, is rated at 5.9L/100km (combined) in NEDC.
5. Audi's new 2.0 turbo gets better than 5.0L/100km combined in NEDC when it's in the A4, a car in the same class as the 3-series.
6. Therefore Audi's new turbo 2.0 is very likely to be meaningfully more efficient than Lexus's turbo 2.0 too.
To put it more simply:
1. NX200t = X3 xDrive28i
2. From 1., IS200t = 328i
3. 320i > 328i
4. New A4 >> 320i
5. From 3. and 4., New A4 >> 328i
6. From 2. and 5., New A4 >> IS200t
But keep in mind that the NX200t is hindered by a 6-speed AT versus the BMW's 8-speed, so if the upcoming IS200t turns out to use 8AT, it should help close the gap quite a bit while still producing a much higher peak output than the new Audi A4.
Last edited by ydooby; 05-07-15 at 05:07 PM.
05-07-15, 04:15 PM
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Audi's PR avoided the reference to Atkinson cycle, now synonymous to Toyota, by spinning the technology as being "At its core its principle is comparable to the Miller cycle", which is exactly what Atkinson cycle is.
Last edited by ydooby; 05-07-15 at 04:25 PM.
05-07-15, 04:31 PM
#15
its not going to be 47 US MPG so it is better not to translate silly European MPG to US like that.
Anyway, I am sure Audi will have more powerful versions released at the same time, Europeans prefer less hp these days anyway, makes them think it is more efficient.
As to the engine, seems like it is using similar/same tech that Toyota put into new 2.0t in Lexus NX.
Anyway, I am sure Audi will have more powerful versions released at the same time, Europeans prefer less hp these days anyway, makes them think it is more efficient.
As to the engine, seems like it is using similar/same tech that Toyota put into new 2.0t in Lexus NX.
, current is 24/32/27Indeed, the current 2.0T in various forms is robust and has many different outputs from A4 to TT