String exponential stability analysis and control of vehicular platoons with bounded unknown parameters and time delays

Sui, Hao; Zhang, Jiye

doi:10.1177/09596518221112464

Cited by 2 publications

(8 citation statements)

References 27 publications

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“…i2 , which are the components of the controller for disturbance and uncertainty. It can be seen that they are bounded under the tunning law equations ( 8) and (17). Finally, Figure 7 shows the case of estimator failure, that is, ûi is not generated normally.…”

Section: Simulationmentioning

confidence: 98%

“…Theorem 1. Consider a network composed of N agents with dynamic equation (1), the control law equation (16), and parameter estimators' updating laws equations (7), ( 8), (12), and (17). Under Assumptions 1 to 3 and the communication digraph has a spanning tree, it is ensured that: (1) Practical output synchronization of the multiagent system is realized; (2) Other signals in the closed-loop system are bounded.…”

Section: Final Step Nmentioning

confidence: 99%

“…According to Theorem 1, the practical output synchronization is realized by the designed distributed controller u i = a in combined with two parameter estimators equations ( 7) and (17). The simulation results are shown in Figures 3-6.…”

Section: Simulationmentioning

confidence: 99%

“…In addition, in practical applications, the study of systems affected by uncertainty is also crucial, such as the study of tracking control of rehabilitation exoskeleton robot with dynamic uncertainty, 16 and the study of vehicle queue control with unknown parameters and time delays. 17 Due to its universality, cooperative control of multiple parametric strict feedback (PSF) systems has been widely investigated. [18][19][20][21][22] In these works, uncertainties and nonlinearities have been considered such as unknown parameter, state constraint, and input saturation.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Distributed adaptive controller for the cooperative control of networked parametric strict feedback systems

Peng

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part I:

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In this article, we investigate the cooperative control of networked parametric strict feedback systems in the presence of uncertainties and nonlinearities. A distributed controller is constructed recursively such that the synchronization error of agents’ outputs can be bounded, that is, practical output synchronization is achieved. By command-filtered backstepping approach, the derivation of the virtual control is avoided, which significantly reduces the computational burden of each agent. Moreover, the neighborhood information which is needed for agent i to construct its controller is minimized. Therefore, information transfer burden is eased as well. It is proved that practical output synchronization is achieved when the digraph has a spanning tree. Finally, the effectiveness of the proposed controller is illustrated by a numerical example.

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Section: Simulationmentioning

confidence: 98%

Section: Final Step Nmentioning

confidence: 99%

Section: Simulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Distributed adaptive controller for the cooperative control of networked parametric strict feedback systems

Peng

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part I:

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Exponential mean‐square string stability of vehicular platoon with stochastic disturbance and time delay

Sui,

Zhang,

Dai

2024

Intl J Robust & Nonlinear

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Platooning is an effective way to reduce air resistance and fuel consumption in vehicular transportation. However, stochastically generated disturbances can significantly impact the string stability of platoons. This article proposes a novel control law, based on sliding mode control and leader‐predecessor communications, designed to improve the exponential mean‐square string stability of platoons with Ito‐type stochastic disturbances that consider friction force. Specifically, our approach employs a third‐order nonlinear dynamic model to capture the relevant spatiotemporal correlations present in vehicle platoons. The proposed longitudinal control strategy effectively stabilizes the platoons with time delay and was verified through simulation experimentation. In this study, the stability of sliding mode motion is thoroughly investigated by means of sub‐reachable and practical stability analysis with sliding mode control. The findings of this study provide a theoretical foundation for further research on vehicle platoons with increasingly complicated interference and time delays. Overall, our results demonstrate that our approach can achieve significant improvements in both fuel economy and exhaust emissions while maintaining high levels of string stability, further contributing to the development of efficient and sustainable transportation systems.

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String exponential stability analysis and control of vehicular platoons with bounded unknown parameters and time delays

Cited by 2 publications

References 27 publications

Distributed adaptive controller for the cooperative control of networked parametric strict feedback systems

Distributed adaptive controller for the cooperative control of networked parametric strict feedback systems

Exponential mean‐square string stability of vehicular platoon with stochastic disturbance and time delay

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