Title: Relationship between dynamic response characteristics and noise of timing belt drive system for a PHEV four-cylinder engine

Authors: Yongyi Guo; Shengqiang Liu; Xiao Sun; Qiuping Luo; Bo Zhao; Hongliang Xi

Addresses: Engine Design Engineer, Ningbo Geely Royal Engine Components Co., Ltd., Ontology Development Department, No. 918, Binhai Road 4, Hangzhou Bay New District, Ningbo, Zhejiang, China ' Engine Design Engineer, Ningbo Geely Royal Engine Components Co., Ltd., Ontology Development Department, No. 918, Binhai Road 4, Hangzhou Bay New District, Ningbo, Zhejiang, China ' Engine Design Engineer, Ningbo Geely Royal Engine Components Co., Ltd., Ontology Development Department, No. 918, Binhai Road 4, Hangzhou Bay New District, Ningbo, Zhejiang, China ' Engine Design Engineer, Ningbo Geely Royal Engine Components Co., Ltd., Ontology Development Department, No. 918, Binhai Road 4, Hangzhou Bay New District, Ningbo, Zhejiang, China ' Engine Design Engineer, Ningbo Geely Royal Engine Components Co., Ltd., Ontology Development Department, No. 918, Binhai Road 4, Hangzhou Bay New District, Ningbo, Zhejiang, China ' Engine Design Engineer, Ningbo Geely Royal Engine Components Co., Ltd., Ontology Development Department, No. 918, Binhai Road 4, Hangzhou Bay New District, Ningbo, Zhejiang, China

Abstract: In order to study the dynamic characteristics of the timing belt drive system, this paper analyses the influence of crankshaft speed fluctuation on the dynamic characteristics, and focuses on the correlation between the tensioner tension force and engine load and the transient dynamic response characteristics of the timing belt drive system of a four-cylinder engine of a PHEV, such as tensioner arm swing, idler pulley centre load, and timing transmission error. The NVH generation mechanism of the timing belt drive system is analysed, and the effects of tension force and belt mass density on the noise of the timing system are investigated, with a focus on solving the engagement noise under engine idling and acceleration conditions. The research in this paper can be used to predict the dynamic response characteristics and parameter optimisation of the engine timing belt drive system, reduce the design cycle and validation cost, and provides ideas and methods to decrease NVH in the timing system.

Keywords: timing belt drive system; dynamic characteristic; NVH; tension force; meshing noise.

DOI: 10.1504/IJVNV.2024.142759

International Journal of Vehicle Noise and Vibration, 2024 Vol.20 No.2, pp.181 - 202

Received: 06 May 2023
Accepted: 14 May 2024
Published online: 20 Nov 2024 *

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