Model Of Anti-lock Braking System Research Articles

FUNCTIONAL-COST ANALYSIS OF THE ANTI-LOCK BRAKING SYSTEM (ABS) OF CARS

Functional-cost analysis is a method that has a heuristic nature and is used to identify opportunities to reduce costs and improve the quality of an object, which is considered as a system with a functional orientation at all stages of its life cycle. This article considers the application of functional cost analysis for the anti-lock braking system of cars. As part of this study, a functional model of the car's anti-lock braking system was developed and its functions were classified. The classification of functions within the framework of the functional model of the anti-lock braking system of cars was also carried out. To determine the utility coefficients of this system, a matrix of priorities was built using a known calculation method. When designing technical or production systems, the general cost criterion takes into account costs at all stages of the system's life cycle. For this evaluation, a matrix of anti-lock braking system of cars was created, which allows to compensate the cost factor. The results of the study are the construction of a diagram of the utility of the functions of the anti-lock braking system of cars, a diagram of the location of the system functions taking into account the utility factor, a functional cost diagram of the system, a diagram of the costs of the system functions, a diagram of the location of the system functions taking into account the cost factor, a diagram of the value of the indicator of the functional cost of the system functions, and diagrams of the location of system functions with the calculation of the functional cost indicator. Based on the analysis of this diagram, the functions of the anti-lock braking system of the car were determined, which have a positive functional value indicator and the highest rating among the functional functions. operations or functions that have the highest functional value indicator and rank.

Design and Analysis of Vehicle Anti-Lock Braking System with Fuzzy Logic, Bang-Bang and PID Controllers

In this study, a mathematical model of Anti-Lock Braking System (ABS) has been developed and simulated in MATLAB/Simulink environment using bang-bang, fuzzy logic and PID controllers. The controllers were used to control the braking force to be applied based on various parameters like relative slip, road condition and coefficient of friction between road and tire. The simulated result was compared and analyzed. The simulation result showed that a PID controller would take 9.665 seconds to stop the vehicle at the distance of 434.902 ft at an initial velocity of 88 ft/s. The Fuzzy Logic, Bang-Bang and no controllers offered 935.298 ft at 16.76 seconds, 696.996 ft at 13.751 seconds and 1421.327 ft at 24.217 seconds, respectively for the same initial velocity and road surface. From analysis, it was concluded that the PID controller had better performance compared to fuzzy logic and bang-bang controllers for application of ABS in a vehicle.

Hydraulic anti-lock braking control strategy of a vehicle based on a modified optimal sliding mode control method

The objective of this paper is to propose a modified optimal sliding mode control method for the hydraulic anti-lock braking system of a vehicle to achieve both robustness and optimal control performance. The longitudinal dynamic model of a vehicle, tyre model and hydraulic anti-lock braking system model are established, and the weakness of the common optimal sliding mode control method in designing the anti-lock braking system controller is analysed synthetically. The analyses form the basis for tracking an ideal slip ratio. A new modified optimal sliding mode controller is proposed to regulate the hydraulic anti-lock braking system for a better braking performance and robustness: the optimal sliding mode manifold function includes several virtual damping elements and infinitely small-sized items to meet the working conditions of the current optimal sliding mode control method. The control results of the proposed controller are compared with those of the common sliding mode controller. Simulation results under various road conditions demonstrate that the modified optimal sliding mode controller not only has strong robustness against uncertainties in the road adhesion coefficient but also achieves better control performance of the slip ratio.

Fuzzy fractional PID gain controller for antilock braking system using an electronic wedge brake mechanism

This paper focuses on the design of a fuzzy fractional Proportional-Integral-Derivative (PID) controller. The controller which is based on the conventional PID controller is modified to be P1–α I1–β D1–γ with the objective to make the controller more flexible and robust to the changes in input and the parameters. In this control structure, the fuzzy logic control acts as the tuner for the parameters α, β and γ, so that the overall controller parameter can be varied and converge better to the changes in a system. The designed fuzzy fractional PID controller is applied to a validated antilock braking system model using an electronic wedge brake system as the actuator. Numerous numerical simulations and comparisons with other fractional PID/conventional PID controllers show that the fuzzy fractional PID controller can not only ensure good control performance with respect to reference input but also improve the system robustness with respect to model uncertainties.

Independent Model Generalized Predictive Controller Design for Antilock Braking System

Wheel slip control is a significant research topics in the field of car stability. Model predictive control is one of the most advanced controller which has received great attention and application in industries. In this paper independent model generalize predictive control (IMGPC) is introduced for antilock braking system. This controller is implemented on a linear model of anti-lock braking system, and through the numerical simulation, it is demonstrated that it can control the system in presence of sever noise and disturbances. The simulation results show that the proposed controller has better performance in comparison with other conventional linear controllers. General Terms Predictive control, Anti-lock braking system .

Modeling and Simulation for Anti-Lock Braking System (ABS) of Automobiles Based on Simulink

Anti-lock Braking System (ABS) is a critical active safety technology for automobiles. In this paper, continuous system and discrete system in ABS model are simulated, in which system simulation method based on finite-state machine is adopted, and Simulink is used for modeling. Result of simulation suggests that this simulation system can reflect the actual working process of ABSon automobiles, shorten braking distance obviously and improve safety.

Application of Neural Network in Fault Diagnosis of Anti-Lock Braking System

Intelligent diagnosis technology has been one of the hotspot researches with the artificial neural net. Anti-lock braking system (ABS) is an important safety device of automobile. In this paper, using BP neural net, established the fault diagnosis neural net model of ABS, training and diagnosing the net by the fault samples. The results show that this method is feasible. The simulation is done by using MATLAB.

Linear Slip Control Formulation for Vehicular Anti-Lock Braking System with Suspension Effects

AbstractThis paper presents the formulation of a slip-control model for purposes of performing slip tracking of target slip. System modeling is performed to develop a braking model incorporating an active suspension. Linearisation of the highly non-linear multi-input multi-output developed Anti-lock Braking System model is performed by way of input-output feedback linearisation. Feedback linearisation is shown to provide a transformed linear ABS model while ensuring a verifiable stable state transformation. Lie algebra is used to find the stability of the internal dynamics through zero dynamics analysis. Simulation results demonstrate the validity of the approach along with the development of a stabilising condition for the linearisation approach.

Development of a slip control anti-lock braking system model

This paper describes the initial phase of work carried out as part of an on going study investigating the interaction between the tyre, suspension system and an antilock braking system (ABS). The modelling, analysis simulations and integration of results have been performed using an industry standard Multibody Systems Analysis (MBS) program. A quarter vehicle model has been used together with an individual front suspension system represented by interconnected rigid bodies. The tyre model used can be integrated into vehicle handling simulations but only the theory associated with the generation of longitudinal braking forces is described here. An ABS model based on slip control has been used to formulate the braking forces described in this paper. The simulations, which have been performed braking on wet and dry road surfaces, compare the performance of two different tyres.

Performance evaluation and test of anti-lock braking system hydraulic system

The model of anti-lock braking system (ABS) hy- draulic system is built including electromagnetic valve,brake line and wheel brake cylinder.By means of analyzing the characteristics of hydraulic system,a test bench is established to control and measure the behavioral data from the hydraulic system in real vehicles.Model parameters are calculated by regression analysis.Based on the model of ABS hydraulic sys- tem,ABS model is also built which includes vehicle model, electronic control unit model,etc.Important factors,which have critical effect on the performance of ABS,are discussed. Key evaluating parameters that can be used to evaluate the hydraulic system arc given based on the experimental data.The study can be used to guide the developing,calibration and matching of ABS for vehicles more effectively.

Modeling Tire Performance During Antilock Braking

Abstract This paper develops an analytical-numerical model of antilock braking system (ABS) cycles, vehicle slowdown dynamics and their concomitant influence on tire tread lug wear. Overall, the model handles the effects of tire slip-friction behavior, brake-slip behavior, vehicle slowdown dynamics including lift and drag, ABS cycling, tire wheel rotation and vibration dynamics, and local tread level thermomechanical-chemical degradation “shear off” of the surface rubber. The results of several benchmark studies are also presented. These demonstrate potential tire wear characteristics under ABS.