0126 Noise and Vibration Reduction Technology in the Development of Hybrid Luxury Sedan
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For a luxury sedan, quietness is a major selling point, and a luxury hybrid sedan is expected to be especially quiet. Therefore, in the development of the luxury hybrid sedan, every possible effort is needed to reduce the hybrid system noise in order to ensure a level of quietness far superior to that of an ordinary gasoline-powered vehicle. In addition, the noise and vibration phenomena that are particular to vehicles with longitudinal power trains require special reduction technologies. This paper describes the superior quietness of luxury hybrid sedans in comparison with ordinary gasoline-powered sedans and the development issues of vibration during engine starting, and motor noise, explaining the technologies employed to reduce them.
