Comparison of Model-Referenced and Map-Based Control Method for Vehicle Stability Enhancement

Baek, Seung-Hwan; Son, Minhyuk; Song, Jeonghoon; Boo, Kwangsuk; Kim, Heungseob

doi:10.4271/2013-01-0017

Cited by 1 publication

(1 citation statement)

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“…The stability region of vehicle was investigated by using the topology method, and a vehicle lateral stability control method based on the stability region was proposed to stabilise the vehicle lateral dynamics. 9,10 The methods mentioned above for estimating the stability region were based on the nonlinear tire model and the two-degree-of-freedom (2DOF) vehicle model consist of lateral motion and yaw motion. When the tire is working in the state of saturated friction, the coupling between different DOFs of the vehicle make the vehicle more likely to lose stability.…”

Section: Introductionmentioning

confidence: 99%

Research on vehicle stability region under critical driving situations with static bifurcation theory

Zhu

Zhang

Wang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part D:

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A strategy for solving the static bifurcation points of the 5DOF vehicle nonlinear system is proposed to research the stability region of the system. The bifurcation characteristics of the system is changed by the coupling of the steering and the engine braking torques under the high-speed emergency steering conditions, and the corresponding vehicle stability region must be redefined. The stability region of the vehicle which is influenced by the engine braking torque is determined with the static bifurcation theory, and the equilibrium points of the 5DOF vehicle system are solved with the phase space method and the random weight particle swarm optimization (RWPSO) algorithm. The vehicle stability is verified with different initial longitudinal speeds and different steering angles, and the simulation results validate the effectiveness of the stability region under the critical driving conditions. The study is conducive to the development of the active safety control systems and the application of nonlinear system dynamics in the automotive field. Furthermore, it provides the theoretical support for the application of the vehicle-handling stability.

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Section: Introductionmentioning

confidence: 99%