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A Study on the Effect of Steering Input Frequency on Transient Lateral Dynamics of Four-Wheeled Passenger Vehicles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 9, 2019 by SAE International in United States
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Vehicle lateral dynamic response parameters such as yaw velocity, lateral acceleration, roll angle, etc. depend on the nature of steering input. Response parameters vary with the amplitude and frequency of steering input. This paper deals with developing insights into the effect of steering input frequency on transient handling dynamics. For the purpose two SUV segment vehicles with similar curb weight are considered. Vehicles are given pulse inputs of the amplitudes corresponding to 4 m/s2 steady state lateral acceleration and target speeds of 80 kmph and 100 kmph, as recommended in ISO 7401:2011. Steering inputs are executed using a Steering Robot (ABD SR30). Lateral transient dynamic response gains as well as natural frequencies of yaw are studied for 0-2 Hz input frequencies. Several insights are developed, adding to the understanding of transient lateral dynamics and its relationship with steering input.
CitationJoshi, D., Kedia, S., and Muthiah, S., "A Study on the Effect of Steering Input Frequency on Transient Lateral Dynamics of Four-Wheeled Passenger Vehicles," SAE Technical Paper 2019-26-0070, 2019, https://doi.org/10.4271/2019-26-0070.
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