NVH Optimization of HMC 3.0L V6 Diesel Engine Hyundai Motor Company and Kia Motors Corporation

Format:

Conference/Event

Author/Creator:

Kwak, Woo-Hee, author.

Conference Name:

SAE 2007 Noise and Vibration Conference and Exhibition (2007-05-15 : St. Charles, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

Hyundai has developed a brand new 3.0L V6 diesel engine for luxury vehicle with electronic VGT, piezo injector and bedplate block structure. In addition to challenging targets for fuel consumption and emission levels, engine specifications were focused on performance and NVH. This paper presents the detailed process of reinforcing engine components such as block, cylinder head and oil pan in view of low sound pressure and high quality. Generally, the fast reaction speed of piezo injector can improve the emission, but it usually causes injector noise. We reduced this noise through developing new ECU logic and isolating this part with noise reduction foam. In addition to that, we could reduce the combustion noise using DoE method for the optimization of injection parameters considering the emission and fuel economy. As a result of these attempts, 34dBA of overall sound pressure level from engine itself could be reduced without any loss of fuel economy and power characteristics. Finally, this paper also presents the countermeasures for turbocharger noises (whine, surge and air flow noise), auxiliary belt noise, chain noise and cam gear noise

Notes:

Vendor supplied data

Publisher Number:

2007-01-2371

Access Restriction:

Restricted for use by site license