The new Audi 3.0-l-V6-TDI engine

Bauder, Richard; Brucker, Dieter; Hatz, Wolfgang; Lörch, Henning; Macher, Axel; Pamio, Zaccheo-Giovanni; Reuss, Thomas; Riegger, Ralph; Schiffgens, Hans-Josef

doi:10.1007/bf03227698

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…Recent engine designs make greater use of chamfers in the cylinder head, which help increase the swirl generated at low valve lifts and reduce interference between the flows from the two intake ports. 14,37,38,62,63 Consequently, flow loss considerations are becoming less important. Flow swirl can adversely affect fuel economy despite more rapid combustion due to increased heat losses.…”

Section: Swirl Levelmentioning

confidence: 99%

A review of design considerations for light-duty diesel combustion systems

Miles

Andersson

2015

International Journal of Engine Research

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Practical aspects of light-duty diesel combustion system design are reviewed, with an emphasis on design considerations reported by manufacturers and engine design consultancies. The factors driving the selection of compression ratio, stroke-to-bore ratio, and various aspects of combustion chamber geometry are examined, along with the trends observed in these parameters in recently released engines. The interactions among geometric characteristics, swirl ratio, and the fuel injection nozzle parameters are also reviewed.

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Section: Swirl Levelmentioning

confidence: 99%

A review of design considerations for light-duty diesel combustion systems

Miles

Andersson

2015

International Journal of Engine Research

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The New 3.0-litre V6 TDI Engine in the Audi Q5

Bauder¹,

Bach²,

Köhne³

et al. 2008

ATZextra Worldw

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Improving Base Engine Calibrations for Diesel Vehicles Through the Use of DoE and Optimization Techniques

Brooks¹,

Lumsden²,

Blaxill³

2005

SAE Technical Paper Series

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Recent developments in diesel engine technologies have led to considerable emissions and performance improvements, however the task to calibrate the increased degrees of freedom is challenging and complex. There is a requirement for improved experimental and data processing approaches that simplify and accelerate the calibration procedure. This paper presents an approach that simplifies the analysis of a six factor experimental system, where the settings for a multiple injection strategy, exhaust gas recirculation and boost pressure have all been investigated. Design of Experiments (DoE) and optimization techniques have been integrated and applied at five speed and torque conditions, in order to define calibration changes that meet various constraint criteria. The calibration changes determined at these sites have been extrapolated over the region of the operating map covered in the New European Drive Cycle. The focus has been to reduce the smoke and NO x outputs of the engine at no penalty to the base engine emissions and performance characteristics. This approach has resulted in a modified calibration, which reduces the smoke output by 12 % and NO x by 15 % over an estimated NEDC. Equivalent base engine levels of CO, HC, fuel consumption and engine stability were maintained.

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The new Audi 3.0-l-V6-TDI engine

Cited by 3 publications

References 2 publications

A review of design considerations for light-duty diesel combustion systems

A review of design considerations for light-duty diesel combustion systems

The New 3.0-litre V6 TDI Engine in the Audi Q5

Improving Base Engine Calibrations for Diesel Vehicles Through the Use of DoE and Optimization Techniques

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