Browse Publications Technical Papers 2019-26-0179

Investigation of Cabin Noise While Accelerating on Low MU Track Through Simulation Approach Using Full Vehicle ADAMS/Car Model 2019-26-0179

Cabin noise is a significant product quality criteria which enables the customers for product differentiation. There are various reasons which leads to cabin noise such as wind, structures(panels), engine, suspension, tire and roads. During product development phase, extensive tests has been conducted to minimize cabin noise. One of such test is accelerating vehicle on low mu or icy surface. While performing acceleration maneuver(tractions) on a low mu tracks, Cabin noise and Low tractive torque build-up is reported. A detailed simulation based study using ADAMS/CAR has been performed to assess the contribution of various full vehicle sub-systems, primarily suspension & powertrain sub-system towards the said problem statement. The dynamic interaction between road, suspension, Powertrain and BIW has been is the focus of study both in time and frequency domain. This simulation helped understand the factor effects and contribution levels and correlates well with the subjective feel observed on the physical vehicle on low-mu track. This model has been further used to provide design recommendation on the compliance parameters to overcome the issue at hand. Test has been conducted with recommended tire grip properties and suspension bushing parameters which lead to reduction in cabin noise. Keywords:- Cabin noise , Low mu , Tire grip , Bushing compliance , Acceleration maneuver , ADAMS/CAR


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