Yamaha 2UR-GSE tech paper
08-29-12, 06:52 AM
#1
Pit Crew
Thread Starter
Yamaha 2UR-GSE tech paper
Link to Yamaha's tech paper on the 2UR-GSE.... needs to be translated. Apologies if this has been posted in the past, I did a quick search but did not find it.
http://www.yamaha-motor.co.jp/profil...4/pdf/gs06.pdf
http://www.yamaha-motor.co.jp/profil...4/pdf/gs06.pdf
Can anyone translate?
08-29-12, 10:45 AM
#4
Pit Crew
Thread Starter
Here's the text....
On environmental performance has been secured, this engine is thoroughly torque characteristics as a sports engine further
Tuned and improved the maximum output in addition.
Ensure sufficient torque at low speeds as the 5.0L displacement, or the torque characteristic that rises linearly with engine speed
The pursuit of power at high rpm feel exhilarating one, we have to increase the maximum output of 21kW 2UR-FSE ratio.
Achievement Sun emission regulations in Europe and the United States, in order to achieve both performance and output performance environments such as the North American Gas Guzzler Tax clear fuel consumption,
TOYOTA D-4S ※ (Direct injection 4-stroke gasoline engine Superior UR-based systems as well as engine
was adopted (Variable Valve Timing-intelligent by Electric motor) VVT-iE and version). Also at high rpm
To improve the efficiency of intake, cylinder head only (hereinafter, head) and newly designed intake and exhaust systems, intake Val
I was employed in the lightweight titanium.
I also used to add or water-cooled oil cooler scavenge pump is assumed further sports driving. Figure 2 yen
Table 1 shows the basic specifications, an overview of gin.
※ TOYOTA D-4S is a registered trademark of Toyota Motor Corporation.
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
2UR-GSE engine type 2UR-FSE 1UR-FSE
V8-cylinder 90 ° V arrangement ← ←
Bore × Stroke (mm) 94.0 × 89.5 ← 94.0 × 83.0
Emissions (c m 3) 4968 ← 4608
← ← 11.8 compression ratio
VVT-iE / EXT:: VVT-i ← ← INT valve train mechanism
Number of valves roller rocker valve DOHC 4 ← ←
Fixed pivot hydraulic lash adjuster (HLA) ←
Valve lift (mm)
← intake 12.0 10.9
← exhaust 10.7 11.0
+ Port cylinder direct fuel injection system fuel supply system (D-4S) ← ←
Engine oil system WET, WET ← scavenge pump head
Water-cooled oil cooler without engine oil cooling ←
Maximum output (kW / rpm) 311/6600 290/6400 283/6400
Maximum torque (N · m / rpm) 505/5200 520/4000 500/4100
J-SULEV emission regulations (☆ ☆ ☆ ☆) ← ←
LEXUS IS F LEXUS LS600h LEXUS LS460 equipped vehicle
Figure 2 Overview engine
Table 1 Main characteristics of the engine
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
3 Features
Sense of growth 3.1
Fabricated to rise to the linear torque characteristics with improved speed and best output, get the engine characteristics with a sense of growth
For Ru, I developed focused on the following items.
Intake port (1)
In order to improve the intake efficiency at high rpm, we have developed a high flow intake ports. Injector of injection port
Along with the miniaturization of the target, reducing the amount of protrusion into the injector port, a cross-section of the intake port entrance in addition
By elliptical shape and a shape with straight smooth port (Figure 3). This flow of the intake port
11% improved relative to 2UR-FSE (4 figure), the coefficients.
(2) intake manifold (the manifold)
Two switching UR engine based systems have adopted
Adopt a type 1 system instead of a high-flow type for example, high
I elaborated torque characteristics of growth in the rotation.
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Figure 3 intake port
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Valve system (3)
Aim to increase the amount of valve lift, reduce inertial mass
I have improved rigidity and. The adoption of titanium intake valves,
Was 40% for the lighter base. In addition, the improved rigidity of support
In order to place the center cam journal bore, hydraulic
Was changed to a fixed pivot from the lash adjuster. This
2UR-FSE server for the amount of intake valve lift by these
9% in the valve, has expanded 3% in the exhaust valve (Figure 5).
Intake system of a vehicle (4)
In a dual air intake system, low revs
The intake air from the primary air intake, middle and high in
Rpm range will further open the secondary air intake
By lowering the intake pressure loss yellow, sky need for high power
To ensure the amount of air (Figure 6).
(5) Exhaust manifold
Among the constraints of high rpm with very severe
Volumetric efficiency in the cylinder can be improved by reducing the exhaust interference
Performance was improved as a dual-type (Figure 7).
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Figure 7 exhaust manifold
Figure 5 Comparison valve lift
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Reduction (6) Friction
In the refinement of the oil pan baffle plate, thereby reducing agitation resistance of oil. By employing titanium valves also,
Reduced by about 20% 2UR-FSE valve spring load, and also reduces the friction valve train.
Conclusion (7)
Into high rpm and maximum power point of the above effects by (+200 rpm), the output of 21kW for growth and improvement 2UR-FSE
To achieve a sense of torque characteristics (Figure 8).
3.2 Response
This engine, aimed at the goodness of the unique response of naturally-aspirated engine. To improve access response
It is necessary to eliminate the time lag of the intake air amount and the operating module, this may reduce the volume of the intake system
Effective. This engine can degrade the performance by optimizing the shape of the intake system in order by fluid analysis
And no, the volume ratio to achieve the most compact (Fig. 9). Intake pipe pressure response when the throttle is closed by this
Was reduced to about 30% 1UR-FSE the response time (Figure 10).
By closely linking the engine control and transmission control and, in addition to the world's fastest
To (Figure 11), and the entire powertrain and upshift (0.1sec), such as quick downshift blipping
Seeking a fun to drive Te.
Engine performance curve in Figure 8
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Figure 9 intake manifold
Figure 10 compares the intake pressure response
Figure 11 compares the shift time
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
3.3 Sound
Sound development of the engine as a sport, in the low-speed range rpm range medium speed, the bass sound of the center exhaust sound
I went ahead with the goal of high-speed range of mechanical sound clear, strong in the air intake sound.
Take advantage of the dual air intake system, to make the sound audible intake in middle-speed rotation range is switched
I had to tune the number of revolutions for example. In the low speed range is high due to the intake quiet sound of only the primary air intake
Secondary air in medium speed revolution range of goes over 3600rpm, the sound which is powerful in the bass sound of the center air
To achieve a sound audible intake of primary + secondary take strong opens.
While eliminating the noise from the engine at high rpm is whether we keep only the mechanical sound clear how
against the target for say, just sound insulation also disappeared mechanical sound of the same frequency range and noise, the noise
I took the means to suppress so as not to occur. One of these is the support position of the cam and change the aforementioned journal
Is mainly due to the use of titanium intake valves.ノ turbidity when there is a sense of strong resonance region in addition to the air intake sound
To feel as size, linear at high rpm to clear by adopting a low-frequency resonance intake system layout
Got a sound with a sense of (Figure 12).
With these, the sound depends on the state in vehicles traveling
Changes in three stages of Figure 13 Te. Also when shifting down
The rapid shift to increase the engine speed instantly
Also added production of sound blipping control intake air due to,
I was made to realize the sports sound to enjoy driving.
Sound image of stage 13 in Figure 3
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
3.4 Response to traveling sports
G took a header when turning high for sports driving
In order to prevent the deterioration of the oil return from the soil, usually OY
Strength of the oil from each head left and right banks in addition to Rurain
We established the scavenge pump system to recover to. Pump
Has established individually for each bank, turning as high as 1.2G
Low oil pressure for the scavenge pump without even join G
Halve the under, has secured the hydraulic pressure necessary (Figure 14). Also water
Even in severe driving conditions by employing a oil cooler cold
Reduce the oil temperature above 5 ℃, the maximum engine performance
Was set to be able to demonstrate. Even sports run by these
It enables stable lubricating oil.
3.5 Environmental Performance
In this engine, the fuel injection system for each cylinder as the two main items for both of output performance and environmental performance
And D-4S system that has, the VVT-iE database that can be controlled from a wide range of low temperature valve timing using an electric motor
I was adopted as well as the UR engine of the device.
In addition, additional heat treatment optimization and structure of the cylinder block, the adoption of the water jacket spacer
was carried out in the same manner as by suppressing the deformation bore.
LEXUS IS F engine equipped with the invention by these
Clear, and waste fuel consumption in North America North America Gas Guzzler Tax
Get the ULEV Ⅱ, gas emission control regulations in Japan
75% lower than the most stringent emissions standards in 2005
I have cleared (☆ ☆ ☆ ☆). 4.0L class fuel economy
In the acceleration performance of the 6.0L class boasts the maneuverability while,
Have both environmental performance and output performance. Fuel consumption in Figure 15
Shows the performance and acceleration.
4 Conclusion
Think I was able to show the direction of one of the sports engine to pursue the joy of driving this engine
Have. While maintaining the fun to drive, this engine range from the use of a wide range of sports driving, city driving
I make it possible to. Demand for environment-friendly engine in harsh, is both fun to drive and environmentally friendly
We will continue to develop in the future of engine technology was.
Everyone involved and a number of internal and external Toyota Motor Co., Ltd., who was involved in the development and commercialization of 2UR-GSE at the end
I thanked.
Figure 14 scavenge pump
Figure 15 fuel economy and acceleration performance
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
■ Author
Young 好 Yoshihisa Muto Muto
Division Engineering Department first AM AM
Hiroyuki Maeda, Hiroyuki Maeda
Division Engineering Department first AM AM
Atsushi Suzuki, Atsushi Suzuki
Division Engineering Department first AM AM
Masahiko Iikura Masahiko Iikura
Division Engineering Department first AM AM
Makoto Kawamura Makoto Kawamura
Division Engineering Department first AM AM
Yasuyuki Suzuki Yasuyuki Suzuki
AM Engineering Department 2nd Division AM
Takeo Takeo Kondo Kondo
Division Engineering Department first AM AM
Takashi Hara Takashi Hara
Division Engineering Department first AM AM
Back row from left, front row from left
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
On environmental performance has been secured, this engine is thoroughly torque characteristics as a sports engine further
Tuned and improved the maximum output in addition.
Ensure sufficient torque at low speeds as the 5.0L displacement, or the torque characteristic that rises linearly with engine speed
The pursuit of power at high rpm feel exhilarating one, we have to increase the maximum output of 21kW 2UR-FSE ratio.
Achievement Sun emission regulations in Europe and the United States, in order to achieve both performance and output performance environments such as the North American Gas Guzzler Tax clear fuel consumption,
TOYOTA D-4S ※ (Direct injection 4-stroke gasoline engine Superior UR-based systems as well as engine
was adopted (Variable Valve Timing-intelligent by Electric motor) VVT-iE and version). Also at high rpm
To improve the efficiency of intake, cylinder head only (hereinafter, head) and newly designed intake and exhaust systems, intake Val
I was employed in the lightweight titanium.
I also used to add or water-cooled oil cooler scavenge pump is assumed further sports driving. Figure 2 yen
Table 1 shows the basic specifications, an overview of gin.
※ TOYOTA D-4S is a registered trademark of Toyota Motor Corporation.
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
2UR-GSE engine type 2UR-FSE 1UR-FSE
V8-cylinder 90 ° V arrangement ← ←
Bore × Stroke (mm) 94.0 × 89.5 ← 94.0 × 83.0
Emissions (c m 3) 4968 ← 4608
← ← 11.8 compression ratio
VVT-iE / EXT:: VVT-i ← ← INT valve train mechanism
Number of valves roller rocker valve DOHC 4 ← ←
Fixed pivot hydraulic lash adjuster (HLA) ←
Valve lift (mm)
← intake 12.0 10.9
← exhaust 10.7 11.0
+ Port cylinder direct fuel injection system fuel supply system (D-4S) ← ←
Engine oil system WET, WET ← scavenge pump head
Water-cooled oil cooler without engine oil cooling ←
Maximum output (kW / rpm) 311/6600 290/6400 283/6400
Maximum torque (N · m / rpm) 505/5200 520/4000 500/4100
J-SULEV emission regulations (☆ ☆ ☆ ☆) ← ←
LEXUS IS F LEXUS LS600h LEXUS LS460 equipped vehicle
Figure 2 Overview engine
Table 1 Main characteristics of the engine
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
3 Features
Sense of growth 3.1
Fabricated to rise to the linear torque characteristics with improved speed and best output, get the engine characteristics with a sense of growth
For Ru, I developed focused on the following items.
Intake port (1)
In order to improve the intake efficiency at high rpm, we have developed a high flow intake ports. Injector of injection port
Along with the miniaturization of the target, reducing the amount of protrusion into the injector port, a cross-section of the intake port entrance in addition
By elliptical shape and a shape with straight smooth port (Figure 3). This flow of the intake port
11% improved relative to 2UR-FSE (4 figure), the coefficients.
(2) intake manifold (the manifold)
Two switching UR engine based systems have adopted
Adopt a type 1 system instead of a high-flow type for example, high
I elaborated torque characteristics of growth in the rotation.
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Figure 3 intake port
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Valve system (3)
Aim to increase the amount of valve lift, reduce inertial mass
I have improved rigidity and. The adoption of titanium intake valves,
Was 40% for the lighter base. In addition, the improved rigidity of support
In order to place the center cam journal bore, hydraulic
Was changed to a fixed pivot from the lash adjuster. This
2UR-FSE server for the amount of intake valve lift by these
9% in the valve, has expanded 3% in the exhaust valve (Figure 5).
Intake system of a vehicle (4)
In a dual air intake system, low revs
The intake air from the primary air intake, middle and high in
Rpm range will further open the secondary air intake
By lowering the intake pressure loss yellow, sky need for high power
To ensure the amount of air (Figure 6).
(5) Exhaust manifold
Among the constraints of high rpm with very severe
Volumetric efficiency in the cylinder can be improved by reducing the exhaust interference
Performance was improved as a dual-type (Figure 7).
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Figure 7 exhaust manifold
Figure 5 Comparison valve lift
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Reduction (6) Friction
In the refinement of the oil pan baffle plate, thereby reducing agitation resistance of oil. By employing titanium valves also,
Reduced by about 20% 2UR-FSE valve spring load, and also reduces the friction valve train.
Conclusion (7)
Into high rpm and maximum power point of the above effects by (+200 rpm), the output of 21kW for growth and improvement 2UR-FSE
To achieve a sense of torque characteristics (Figure 8).
3.2 Response
This engine, aimed at the goodness of the unique response of naturally-aspirated engine. To improve access response
It is necessary to eliminate the time lag of the intake air amount and the operating module, this may reduce the volume of the intake system
Effective. This engine can degrade the performance by optimizing the shape of the intake system in order by fluid analysis
And no, the volume ratio to achieve the most compact (Fig. 9). Intake pipe pressure response when the throttle is closed by this
Was reduced to about 30% 1UR-FSE the response time (Figure 10).
By closely linking the engine control and transmission control and, in addition to the world's fastest
To (Figure 11), and the entire powertrain and upshift (0.1sec), such as quick downshift blipping
Seeking a fun to drive Te.
Engine performance curve in Figure 8
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Figure 9 intake manifold
Figure 10 compares the intake pressure response
Figure 11 compares the shift time
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
3.3 Sound
Sound development of the engine as a sport, in the low-speed range rpm range medium speed, the bass sound of the center exhaust sound
I went ahead with the goal of high-speed range of mechanical sound clear, strong in the air intake sound.
Take advantage of the dual air intake system, to make the sound audible intake in middle-speed rotation range is switched
I had to tune the number of revolutions for example. In the low speed range is high due to the intake quiet sound of only the primary air intake
Secondary air in medium speed revolution range of goes over 3600rpm, the sound which is powerful in the bass sound of the center air
To achieve a sound audible intake of primary + secondary take strong opens.
While eliminating the noise from the engine at high rpm is whether we keep only the mechanical sound clear how
against the target for say, just sound insulation also disappeared mechanical sound of the same frequency range and noise, the noise
I took the means to suppress so as not to occur. One of these is the support position of the cam and change the aforementioned journal
Is mainly due to the use of titanium intake valves.ノ turbidity when there is a sense of strong resonance region in addition to the air intake sound
To feel as size, linear at high rpm to clear by adopting a low-frequency resonance intake system layout
Got a sound with a sense of (Figure 12).
With these, the sound depends on the state in vehicles traveling
Changes in three stages of Figure 13 Te. Also when shifting down
The rapid shift to increase the engine speed instantly
Also added production of sound blipping control intake air due to,
I was made to realize the sports sound to enjoy driving.
Sound image of stage 13 in Figure 3
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
3.4 Response to traveling sports
G took a header when turning high for sports driving
In order to prevent the deterioration of the oil return from the soil, usually OY
Strength of the oil from each head left and right banks in addition to Rurain
We established the scavenge pump system to recover to. Pump
Has established individually for each bank, turning as high as 1.2G
Low oil pressure for the scavenge pump without even join G
Halve the under, has secured the hydraulic pressure necessary (Figure 14). Also water
Even in severe driving conditions by employing a oil cooler cold
Reduce the oil temperature above 5 ℃, the maximum engine performance
Was set to be able to demonstrate. Even sports run by these
It enables stable lubricating oil.
3.5 Environmental Performance
In this engine, the fuel injection system for each cylinder as the two main items for both of output performance and environmental performance
And D-4S system that has, the VVT-iE database that can be controlled from a wide range of low temperature valve timing using an electric motor
I was adopted as well as the UR engine of the device.
In addition, additional heat treatment optimization and structure of the cylinder block, the adoption of the water jacket spacer
was carried out in the same manner as by suppressing the deformation bore.
LEXUS IS F engine equipped with the invention by these
Clear, and waste fuel consumption in North America North America Gas Guzzler Tax
Get the ULEV Ⅱ, gas emission control regulations in Japan
75% lower than the most stringent emissions standards in 2005
I have cleared (☆ ☆ ☆ ☆). 4.0L class fuel economy
In the acceleration performance of the 6.0L class boasts the maneuverability while,
Have both environmental performance and output performance. Fuel consumption in Figure 15
Shows the performance and acceleration.
4 Conclusion
Think I was able to show the direction of one of the sports engine to pursue the joy of driving this engine
Have. While maintaining the fun to drive, this engine range from the use of a wide range of sports driving, city driving
I make it possible to. Demand for environment-friendly engine in harsh, is both fun to drive and environmentally friendly
We will continue to develop in the future of engine technology was.
Everyone involved and a number of internal and external Toyota Motor Co., Ltd., who was involved in the development and commercialization of 2UR-GSE at the end
I thanked.
Figure 14 scavenge pump
Figure 15 fuel economy and acceleration performance
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
YAMAHA MOTOR TECHNICAL REVIEW
Technology Introduction
■ Author
Young 好 Yoshihisa Muto Muto
Division Engineering Department first AM AM
Hiroyuki Maeda, Hiroyuki Maeda
Division Engineering Department first AM AM
Atsushi Suzuki, Atsushi Suzuki
Division Engineering Department first AM AM
Masahiko Iikura Masahiko Iikura
Division Engineering Department first AM AM
Makoto Kawamura Makoto Kawamura
Division Engineering Department first AM AM
Yasuyuki Suzuki Yasuyuki Suzuki
AM Engineering Department 2nd Division AM
Takeo Takeo Kondo Kondo
Division Engineering Department first AM AM
Takashi Hara Takashi Hara
Division Engineering Department first AM AM
Back row from left, front row from left
Development of the engine for premium sports LEXUS IS F
Engine developed for LEXUS premium sports model IS F
Trending Topics
08-29-12, 03:14 PM
#8
Pit Crew
Thread Starter
You're all quite welcome. I really like the UR series V8, and came across this while searching out the Yamaha connection. I'm in the process of figuring out what will work with what in the engine series.
07-01-15, 10:54 AM
#9
Pole Position
The thread was pointed out to me by Lobux. Interesting, I thought I'd revive it if anybody wanted to read some internal specs and comments from apparently one of Yamaha engineers. It is translated, but obviously not perfect, wish it could be translated into better English? If anybody knows how to do a better translation of the link, please post it up!
Thx
Thx
07-01-15, 03:22 PM
#10
Lexus Fanatic
iTrader: (10)
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 13,446
Received 1,058 Likes
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The thread was pointed out to me by Lobux. Interesting, I thought I'd revive it if anybody wanted to read some internal specs and comments from apparently one of Yamaha engineers. It is translated, but obviously not perfect, wish it could be translated into better English? If anybody knows how to do a better translation of the link, please post it up!
Thx
Thx
~ Joe Z
... Below
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piran21 (03-19-17)
07-01-15, 04:30 PM
#11
Pole Position
Very cool! Thanks Joe for putting that up
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