Analysis and control of nonlinear vibration of autonomous vehicle passing through hybrid consecutive speed control humps

• Autorzy: Yang Zhiyong , Wang Long , Yu Yanjun , Mou Zhenping , Ou Minghui

Identyfikatory

DOI

10.24425/bpasts.2022.143643

• Języki publikacji: EN

Abstrakty

EN

In order to improve the safety and comfort of autonomous vehicles passing through the expressway, relevant departments of expressway construction often design and lay consecutive speed control humps (SCHs) with cross-sections of different shapes according to different road conditions, such as the combination of trapezoidal and sinusoidal SCHs. In this paper, we conduct a study about the nonlinear dynamic characteristics of the autonomous vehicle passing through hybrid SCHs. Firstly, a four-degree-of-freedom (4-DOF) nonlinear model of the vehicle suspension and the speed coupling excitation model under hybrid SCHs are established. Then the fourth-fifth order Runge–Kutta method is used to simulate the nonlinear system, and its nonlinear dynamic characteristics are analyzed. The results show that chaotic motion occurs when the vehicle passes through hybrid SCHs, and the speed range of chaotic motion is obtained. Then, a direct variable feedback control method is used to suppress the chaotic vibration of semi-active suspension vehicles, and the effect is verified by simulation experiments. Finally, this paper presents a multi-objective optimization model based on a genetic algorithm (GA) for active suspension vehicles. The optimization model selects the vertical displacement and pitching angle of the vehicle body as the objective function. The research results of this paper can provide information on the ride comfort’s optimization for autonomous vehicles passing through hybrid SCHs and on the design of vehicle suspension system.

Słowa kluczowe

EN

autonomous vehicles; hybrid consecutive speed control humps; nonlinear vibration; safety; comfort

PL

pojazd autonomiczny; próg zwalniający; wibracje nieliniowe; bezpieczeństwo; komfort

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2022
• Tom: Vol. 70, nr 6
• Strony: art. no. e143643
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Yang Zhiyong

• Chongqing Vocational Institute of Engineering, Chongqing 402260, PR China
• College of Computer and Information Science, Chongqing Normal University, Chongqing 401331, PR China

• https://orcid.org/0000-0003-4399-5557

autor

Wang Long

• College of Computer and Information Science, Chongqing Normal University, Chongqing 401331, PR China

autor

Yu Yanjun

• College of Computer and Information Science, Chongqing Normal University, Chongqing 401331, PR China

autor

Mou Zhenping

• College of Computer and Information Science, Chongqing Normal University, Chongqing 401331, PR China

autor

Ou Minghui

• Chongqing Vocational Institute of Engineering, Chongqing 402260, PR China
• College of Computer and Information Science, Chongqing Normal University, Chongqing 401331, PR China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).