Active steering control strategy of steer-by-wire system based on variable steering ratio

Li, Fang; Wang, Lifang; Liao, Chenglin; Wu, Yan

doi:10.1109/itec-ap.2014.6940706

Cited by 7 publications

(2 citation statements)

References 4 publications

(5 reference statements)

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“…By adjusting the steering gain and steering derivative time constant of the SBW control model, the driving comfort of an elderly driver was effectively improved. Li et al [14]. analyzed the influence of the steering ratio on the steering sensitivity and expected yaw rate gain through simulations.…”

Section: Introductionmentioning

confidence: 99%

Design of Zero-Differential Steering Controller for Tracked Vehicles With Hydraulic-Mechanical Transmission Based on Particle Swarm Optimization Algorithm

et al. 2023

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The handling stability of tracked vehicles not only affects the handling convenience of drivers but is also an important part of vehicle active safety. A zero-differential steering controller for tracked vehicles with hydraulic-mechanical transmissions was designed in this paper. First, the working principle of the steer-by-wire systems of tracked vehicles was analyzed, and the vehicle speed calculation model was established. Then, the steering dynamics model of the tracked vehicle was established based on the shear stress model. Finally, based on the particle swarm optimization algorithm, the established tracked vehicle steering dynamics model was iteratively solved, and the optimal yaw rate gain 𝐾 𝑟 was calculated in real time and used for vehicle steering control. The steering control simulation model of tracked vehicles was established in MATLAB/Simulink, and the control effect of the designed steering controller was verified by the simulation. The control effect was evaluated by the comprehensive evaluation index of the handling stability. The simulation results showed that the steering controller based on the particle swarm optimization algorithm effectively improved the handling stability of the tracked vehicle and reduced the burden on the driver.INDEX TERMS particle swarm optimization algorithm, steer-by-wire system, tracked vehicle, zerodifferential steering controller

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Section: Introductionmentioning

confidence: 99%

Design of Zero-Differential Steering Controller for Tracked Vehicles With Hydraulic-Mechanical Transmission Based on Particle Swarm Optimization Algorithm

et al. 2023

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“…Wu and Li 16 proposed a Takagi-Sugeno fuzzy neural network-based control law for variable steering ratio, which aims to improve steering agility at low speeds and steering stability at high speeds, while also reducing driver workload during critical driving conditions. Li et al 17 examined active steering control strategies in a steer-by-wire system with variable steering ratio, leading to enhanced steering stability at high speeds, reduced driver burden, and improved driving safety. Wu et al 18 introduced a variable steering ratio control strategy for both normal and emergency driving conditions, which was validated through simulation to effectively reduce the driver's workload, enhance response characteristics, and improve steering stability.…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of universal gearing of steering system on vehicle handling stability

Gao,

2023

Science Progress

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The handling stability of a vehicle is a crucial performance aspect. In this study, the focus is on investigating the impact of the universal gearing of the steering shaft on the handling stability of the vehicle. The research involves a theoretical analysis of how the structural parameters of universal gearing affect the handling stability of the vehicle, which is then validated through a series of simulation experiments including swept-sine steering input simulation, constant radius cornering simulation, and cornering with steer release. Evaluation is based on objective indices such as the steering wheel angle, yaw rate, and lateral acceleration. Moreover, the trends of these indices with respect to the phase angle and initial angle of universal gearing are determined. The findings reveal that the steering ratio of the vehicle varies significantly for varying phase angle and initial angle, resulting in different handling performance. The relationship between the phase angle and fluctuation magnitude of steering ratio is particularly noteworthy, while the impact of initial angle is primarily on the phase of steering ratio. Furthermore, within a certain range, changing the structural parameters of the universal gearing has the potential to enhance the handling performance of the vehicle.

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Zhao

Wang

2022

Recent Advancements in Connected Autonomous Vehicle Technologies

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Active steering control strategy of steer-by-wire system based on variable steering ratio

Cited by 7 publications

References 4 publications

Design of Zero-Differential Steering Controller for Tracked Vehicles With Hydraulic-Mechanical Transmission Based on Particle Swarm Optimization Algorithm

Design of Zero-Differential Steering Controller for Tracked Vehicles With Hydraulic-Mechanical Transmission Based on Particle Swarm Optimization Algorithm

Study of the influence of universal gearing of steering system on vehicle handling stability

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