Research on the Influence of Unsprung Mass on Vehicle Handling Stability

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Abstract:

A dynamical model of engine vehicle was built by using ADAMS/Car. Based on that, another dynamical model of four-independent-wheel-drive electric vehicle was built too. Two simulation experiments of steering wheel angle step input and steering wheel angle impulse input were done. Considering the vehicle mathematical model with two linear degrees of freedom, the transient response and frequency response characteristics were evaluated. Simulation results indicated that time-domain and frequency-domain characteristics of four-independent-wheel-drive electric vehicle were influenced because of its heavy unsprung mass, and that leaded to the deteriorative handling stability.

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Periodical:

Advanced Materials Research (Volumes 562-564)

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816-820

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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