Discrete tyre model application for evaluation of vehicle limit handling performance

Siramdasu, Yaswanth; Taheri, Saied

doi:10.1080/00423114.2016.1220594

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…For the above, it is precise to understand braking systems transitory and non-linear effects, way undulations and vehicle dynamics under the perspective of tires lateral performance, which mainly affects these systems microstructures. To accurately simulate those non-linear effects during vehicle dynamic maneuvers, it is necessary to use fluid dynamics meant for vehicle simulations, which contribute to validate analytical results with those provided by the state of art (Siramdasu;Taheri, 2016).…”

Section: Dynamic Systemmentioning

confidence: 99%

Brake Discs: A Technological Review From Its Analysis and Assessment

León

Flórez-Solano

Suárez-Quiñones

2019

Inf.Tec

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Braking systems are undoubtedly the most important component for road safety, since it determines the total or partial stop of a vehicle and, therefore, guarantees the physical integrity of passengers. Normally, the front brake discs and the remaining percentage absorb 70% of the kinetic energy produced within a vehicle by the rear brake discs, which tend to have the form of a drum brake. These systems benefit from friction to stop a moving vehicle, under the umbrella of hydraulic pressure that pushes the brake pads against the iron-cast disk. In this document, concepts of famous authors around the world on analysis and evaluation of brake discs are provided, which are carried out using a descriptive methodology and an estimation of the characteristics of the brake disc. The review is carried out in computer assisted design through several existing CAD software in the industry, as the main methodology applied to the development of certain research projects, where different geometric characteristics of the brake discs are considered, as well as problems related to wear and corrosion. This research project has shown that it is vital to incorporate existing computer assisted design software to predict performance, improve components and optimize the functionality of the brake system. In this way, road traffic safety and systems efficiency are achieved, which are a matter of great importance for the industry. It is vital to analyze brake systems through Finite Element Analysis (FEA), with the intention of achieving a broader vision of its performance, since the information collected reveals that the geometric characteristics of the brake and cooling ducts influence the heat dissipation. It depends on the form, the type of material and the application, the heat generated between the pad and the brake. Therefore, the heat is dissipated rapidly according to the analysis performed mathematically by the researchers, which are compared with the made in computer assisted design software.

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Section: Dynamic Systemmentioning

confidence: 99%

Brake Discs: A Technological Review From Its Analysis and Assessment

León

Flórez-Solano

Suárez-Quiñones

2019

Inf.Tec

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“…Strictly, a lateral acceleration of 0.2 g indicates that the vehicle is beginning to demonstrate non-linearity. 31 Therefore, the output of the feedforward controller should be smoothly decreased at that moment. The weight gain coefficient p is shown in Figure 5.…”

Section: Vehicle System Dynamicsmentioning

confidence: 99%

Improvement in the vehicle stability of distributed-drive electric vehicles based on integrated model-matching control

Zhang

Göhlich

2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper presents a vehicle dynamic stability controller for distributed-drive electric vehicles. A hierarchical control structure is adopted for the proposed controller. An upper controller is designed on the basis of integrated model-matching control. It consists of a feedforward component plus a feedback component to calculate the desired external yaw moment to achieve the desired vehicle motion. The feedforward control aims at compensating the effect caused by the variation in the linear cornering stiffnesses of the tyres during the life cycle of the tyres. It provides a rapid response under common driving conditions. The linear cornering stiffnesses of the tyres are estimated in real time by the adaptive forgetting-factor recursive least-squares method. Since many vehicle parameters have strongly non-linear and time-varying characteristics, adaptive sliding mode control is used as the feedback component to make the controller robust against systematic uncertainties. To combine the outputs of feedforward and feedback together and to avoid probable conflict, a weight gain coefficient is obtained. Additionally, a conventional sliding-mode controller is introduced as a comparative upper control strategy. The lower controller is utilized to allocate the required yaw moment and traction to the four independent motors, taking into account the tyre grip margins. Simulations for a low-g manoeuvre and a high-g manoeuvre are carried out to evaluate the proposed control algorithm. The results show that the proposed vehicle stability controller can significantly stabilize the vehicle motion and greatly reduce the driver’s workload in comparison with with the conventional sliding-mode controller.

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“…A large number of advanced control strategies have been applied to individual modular chassis control systems, such as active/semi-active suspension, 1,2 active front steering, 3,4 direct yaw moment control (DYC), 5 and anti-lock brake system. 6 However, the individual control of the chassis subsystem was designed and optimized under specific operating conditions. In real vehicle system, the subsystems are interacting with each other, and no single subsystem can be effective throughout the vehicle operating range, as the vehicle properties mainly depend on the coordinated of various subsystems, 7 and the integrated control of the subsystems has become increasingly popular in recent years.…”

Section: Introductionmentioning

confidence: 99%

Fault-tolerant control for vehicle with vertical and lateral dynamics

Sun

Cong

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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As the possibility of sensor faults in the vehicle chassis system is higher and influences the vehicle stability, this paper deals with active fault-tolerant control for vehicle with vertical and lateral dynamics. It focuses on the combined control of active suspension system and electronic stability control with sensor faults based on the interaction between vehicle with vertical and lateral dynamics. A 9-degree-of-freedom vehicle integrated model is adopted for accurate control. The aim of the controller is to improve riding comfort when the vehicle is driving straight and improve lateral stability when the vehicle is steering in the presence of external disturbances and sensor faults. First, an H∞-based method is introduced to reconstruct the sensor fault signals, and meanwhile, the method can also observe the unmeasured signals. Based on the reconstruction faults and observed signals, a gain scheduling controller is utilized to guarantee the performance of the integrated model under different driving conditions, and the steering input is chosen as the scheduling parameter. Three different conditions, step steering input, single lane change input, and sensor faults, are considered. The main contributions of this study are as follows: (1) an H∞-based observer was designed for sensor fault estimation of the vertical and lateral integrated model and (2) a gain scheduling controller was designed to improve the performance of the integrated system. Simulations results indicated that the active fault-tolerant controller can reconstruct sensor faults and observe the unmeasured states exactly, and the linear parameter varying framework–based gain scheduling controller ensures the system performance adaptively.

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Discrete tyre model application for evaluation of vehicle limit handling performance

Cited by 11 publications

References 12 publications

Brake Discs: A Technological Review From Its Analysis and Assessment

Brake Discs: A Technological Review From Its Analysis and Assessment

Improvement in the vehicle stability of distributed-drive electric vehicles based on integrated model-matching control

Fault-tolerant control for vehicle with vertical and lateral dynamics

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