Vehicle Dynamic Control with 4WS, ESC and TVD under Constraint on Front Slip Angles

Jaewon Nah and Seongjin Yim
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Jaewon Nah: Smart Automotive Engineering Department, Wonkwang University, 460 Iksandae-ro, Iksan-si 54538, Jeollabuk-do, Korea
Seongjin Yim: Research Center for Electrical and Information Technology, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Korea

Energies, 2021, vol. 14, issue 19, 1-15

Abstract: To enhance vehicle maneuverability and stability, a controller with 4-wheel steering (4WS), electronic stability control (ESC) and a torque vectoring device (TVD) under constraint on the front slip angles is designed in this research. In the controller, the control allocation method is adopted to generate yaw moment via 4WS, ESC and TVD. If the front steering angle is added for generating yaw moment, the steering performance of the vehicle can be further deteriorated. This is because the magnitude of the lateral tire forces are limited and the required yaw moment is insufficient. Constraint is imposed on the magnitude of the front slip angles in order to prevent the lateral tire forces from saturating. The driving simulation is performed by considering the limit of the front slip angle proposed in this study. Compared to the case that uses the existing 4WS, the results of this study are derived from the actuator combination that enhances performance while maintaining stability.

Keywords: vehicle dynamics; 4-wheel steer; in-wheel driving system; slip angle; tire force saturation; active front steering; rear wheel steering; electronic stability control; torque vectoring device (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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