Research on Torque Ratio Based on the Steering Wheel Torque Characteristic for Steer‐by‐Wire System

Yandong Han, Lei He, Xiang Wang and Changfu Zong

Journal of Applied Mathematics, 2014, vol. 2014, issue 1

Abstract: Steer‐by‐wire system can improve the performance of vehicle handling stability. Removing the mechanical linkages between the front wheels and the steering wheel leads to a key technique of force feedback for steer‐by‐wire system. In view of the characteristic of variable torque transmission ratio for steer‐by‐wire system, this paper proposes a method for designing torque ratio based on the steering wheel torque characteristic for steer‐by‐wire system. It converts the torque ratio design into equivalent assist torque design by analyzing their relationship. It achieves the torque ratio design at different conditions based on the negative equivalent assist torque characteristic curve. Simulations and vehicle experiments are conducted by the proposed method, and the results show that the design goal has been achieved and the steering wheel torque characteristic obtained is very similar to that of the reference car.

Date: 2014
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https://doi.org/10.1155/2014/929164

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnljam:v:2014:y:2014:i:1:n:929164

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