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Achieving Diesel Vehicle Appeal Part 2: Powertrain NVH Perspective
Technical Paper
2005-01-2489
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Diesel vehicle sales in the European passenger car market are rapidly approaching 50% market share. This rise in penetration has been achieved because buyers are attracted by the fuel consumption benefits of diesel powertrains and are now able to select from a wide range of desirable products with excellent performance and levels of refinement competitive with gasoline powered products. In a highly competitive marketplace there is increasing emphasis on the development of appealing diesel products, with the dominant factor being powertrain NVH performance.
This paper compliments an earlier paper [1] on the vehicle NVH process required to achieve high ‘diesel appeal’ by providing a more detailed powertrain NVH perspective. It focuses upon:
- Key powertrain NVH issues
- NVH target setting at a powertrain level
- Combustion system design & calibration optimization
- Powertrain structural optimization
Case studies are drawn from a range of relevant powertrain NVH projects to illustrate the application of key supporting tools and technologies:
- Combustion noise analysis including noise source identification, characterization and monitoring using a novel analyzer system
- Combustion noise optimization using a design of experiment approach
- Optimization using structural attenuation prediction
The paper concludes with an insight into the future challenges in diesel powertrain NVH development that will be generated by increasingly stringent emissions requirements and a marketplace which will demand continuously improving levels of ‘diesel appeal’.
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March, J., Ward, A., Bennett, C., and Towalski, C., "Achieving Diesel Vehicle Appeal Part 2: Powertrain NVH Perspective," SAE Technical Paper 2005-01-2489, 2005, https://doi.org/10.4271/2005-01-2489.Also In
References
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