Torsional vibration and acoustic noise analysis of a compound planetary power-split hybrid electric vehicle. (January 2014)

• Record Type: Journal Article
• Authors: Tang, Xiaolin; Jin, Yongjun; Zhang, Jianwu; Zou, Liang; Yu, Haisheng
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 228:Number 1(2014:Jan.)
• Page Start: 94
• Page End: 103
• Publication Date: 2014-01
• Subjects: Hybrid electric vehicle -- torsional vibration -- noise -- vibration and harshness -- power-split system; Mechanical engineering -- Congresses; Transportation engineering -- Congresses; 629.2
• DOI: 10.1177/0954407013508276
• Languages: English
• ISSNs: 0954-4070

Abstract

Theoretical and experimental analyses of torsional vibrations and acoustic noise for a deep hybrid electric vehicle driveline including an electric, continuously variable transmission are carried out. The dynamic and mathematical models with 16 degrees of freedom in a matrix form are developed for the torsional vibration characteristics of the hybrid driveline. On the other hand, the noise sources of the hybrid electric vehicle powertrain excited in the pure electric mode and the hybrid drive mode are tested and measured using acoustic and speed sensors. The noise orders and the frequency domain responses are constructed using signal treatment and torsional vibration analysis. The theoretical predictions for the natural frequencies and the corresponding vibration modes of the hybrid driveline are presented. The noise test results are also given in accordance with the torsional vibration modes of the hybrid driveline in the pure electric mode and the hybrid drive mode. The noise sources due to the self-excited and frequency-multiplied vibrations are found, focusing on the compound planetary gear set in the power-split electric, continuously variable transmission.