This content is not included in your SAE MOBILUS subscription, or you are not logged in.
NVH Target Cascading from Customer Interface to Vehicle Subsystems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 13, 2013 by SAE International in United States
Annotation ability available
The definition of vehicle and powertrain level targets is one of the first tasks toward establishing where a vehicle will reside with respect to the current or future state of industry. Though development of sound quality metrics is ongoing to better correlate objective data with subjective assessments, target setting at the vehicle level is relatively straightforward. However, realization of these targets depends on effective cascading to system and component levels. Often, component level targets are derived based on experience from earlier development programs, or based on selected characteristics observed during component level benchmarking.
An approach is presented here to complement current strategies for component level target definition. This approach involves a systematic concept for definition of component NVH targets based on desired vehicle level performance and a consequent target break down. The target break down is performed using a TPA method in combination with knowledge about the typical behavior of excitations and transfer functions. Using this approach, target lines are derived for vehicle components such as powertrain, intake and exhaust systems. These targets are then cascaded down further to individual paths and split into targets for excitations and transfer functions (e.g., powertrain mount vibration and vibro-acoustic transfer paths of the vehicle body). This systematic target cascading process is helpful in developing a balance between NVH performance and other development goals.
|Technical Paper||Robust Design of Elastic Mounting Systems|
|Technical Paper||Powertrain Level Target Setting for Impulsive Noise based on Interior Noise Levels|
|Technical Paper||Target Development for Transmission and Electric Motor NVH|
CitationTousignant, T., Govindswamy, K., Tomazic, D., Eisele, G. et al., "NVH Target Cascading from Customer Interface to Vehicle Subsystems," SAE Technical Paper 2013-01-1980, 2013, https://doi.org/10.4271/2013-01-1980.
- Tousignant, T., Govindswamy, K., and Leibling, C., “Evaluation of Source and Path Contributions to Sound Quality Using Vehicle Interior Noise Simulation,” SAE Technical Paper 2011-01-1685, 2011, doi:10.4271/2011-01-1685.
- Genender, P., Wolff, K., Pichot, F., Eisele, G.,: Vehicle Interior Noise Simulation VINS as a production vehicle development tool; 16th Aachen Colloquium “Automobile and Engine Technology”, 2007
- Govindswamy, K., Wolff, K., and Heuer, S., “Aspects of Powertrain Noise with Special Emphasis on Impulsive Noise,” SAE Technical Paper 2007-01-2411, 2007, doi:10.4271/2007-01-2411.
- Pollack, M., Govindswamy, K., Wellmann, T., Eisele, G. et al., “NVH Refinement of Diesel Powered Sedans with Special Emphasis on Diesel Clatter Noise and Powertrain Harshness,” SAE Technical Paper 2007-01-2378, 2007, doi:10.4271/2007-01-2378.
- Locqueteau, C., Gautier, F., Guyaer, G., Alt N., et al.: Characterization and Vehicle Interior Noise Simulation of Transient Diesel Clatter Noise; 15th Aachen Colloquium “Automobile and Engine Technology”, 2006