Research on a Multinode Joint Vibration Control Strategy for Controlling the Steering Wheel of a Commercial Vehicle

Abstract

The vibration degree of a steering wheel has important reference significance for drivers to evaluate the ride comfort of the whole vehicle. To solve the jitter problem of the steering wheel of a commercial vehicle at idle speed, this work proposes a multinode joint vibration control strategy (MDVC) based on the associated vibration path of the steering wheel. Based on the analysis of the associated vibration transfer paths of the steering wheel, the whole vehicle was divided into a system comprising several nodes. For the decomposed node system, taking the vibration transmission path associated with the target as the research direction, the vibration reduction design of each node system is analyzed step by step. After exploring the possible causes of abnormal vibration of the steering wheel through experimental tests, the abnormal node structure interval was determined. By further extracting the structural model of the steering system from the vehicle, the hammering method was applied to test its modal and related frequency. Furthermore, an improved structure of steering support was also designed, and its fitting degree and modal characteristics were analyzed and compared to the original scheme. The following test results show that the structure improvement greatly reduces the vibration level of the steering wheel, meets the ideal design requirements of the steering wheel vibration reduction, and provides the possibility of weighing the correlation between these hierarchical node systems in whole vehicle.

Measurement of Hand-Arm Vibration Syndrome of an Agricultural Tractor Steering Wheel using Machine Vision System

“…It must express the daily vibration exposure as the 8-h energy-equivalent frequency-weighted vibration total value, ahv (eq,8h), as illustrated by the equation: (2). For simplicity, ahv(eq,8h) has abbreviated as A (8).…”

“…I-kaz Vibro was used to analyse vehicle speed and data dispersion to determine HAV levels. Driver's HAV analysed using I-Kaz Vibro coefficient (Zv), display, and daily vibration exposure A (8). More scattering on I-Kaz Vibro displays Zv and A(8) are rising.…”

“…Test results demonstrate the revised procedure minimised steering wheel vibration. [8] M. Wandor et al offered strategies and components for reducing steering gear vibration. It measured horizontal and vertical steering system vibrations.…”

Idle Vibration Reduction of a Diesel Sport Utility Vehicle

“…Considering the coupling effect of the multi-source vibration transfer paths, He et al [19] introduced a multi-point iterative analysis method to reduce the total vibration of the steering wheel at idle speed. To solve the vibration problem of an automotive steering wheel under idling condition, Tang et al [20] proposed a multi-node joint vibration control strategy on the basis of the associated vibration path of the steering wheel.…”