Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2003.05a
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- Pages.342-352
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- 2003
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- 1598-2548(pISSN)
Idle Quality Optimization Study
공회전시 차량의 소음진동현상의 질적개선에 대한 고찰
- ;
- Norbert Wiehagen (FEV Motorentechnik GmbH, Germany)
- 이민섭 (현대자동차 남양연구소 기능시험 2팀) ;
- Published : 2003.05.01
Abstract
Idle NVH characteristics are one of the most important aspects among the vehicle performances. Vehicle developers are devoted to improve vehicle interior noise and steering wheel and seat vibrations. In order to improve the idle quality, noise and vibration transfer path should be carefully evaluated. Also, effects of various components related to the idle performance should be confirmed. A general procedure for improving the idle qualify is described in detail. The relationship among cylinder pressure characteristics, crankshaft rotational speed variation, and vehicle vibrations is also investigated. Influences of drive shaft, torque converter, air conditioning system, vehicle structure including engine mount system, and idle control parameters on the vehicle idle quality are studied. Weak points of typical vehicles on the idle qualify are identified. Some of improvement measures are proposed and verified.
Keywords
- Idle Quality;
- Noise;
- Idle Booming Noise;
- Steering Wheel Vibration;
- Seat Vibration;
- Idle Surge Vibration;
- Noise Path Analysis;
- NPA;
- Transfer Path Analysis;
- TPA;
- Idle RPM Control;
- Idle Stability;
- Cylinder Pressure Fluctuation;
- IMEP Covariance;
- Torque Converter;
- Drive Shaft;
- Variable Capacity Compressor