The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A multi-body dynamics model was established in Adams. According to the working principle of the electric power steering system(EPS), the linear assistant power curve and control strategy were designed in Matlab/Simulink. And the corresponding fault-tolerant control strategy is designed for the current distribution strategy. The co-simulation was carried out and the result shows that the dual-motor...
This paper proposes modelling and estimation parameters of Electronic Differential System (EDS) for an Electric Vehicle (EV) with in-wheel motor using Radial Basis Neural Network (RBNN). In this study, EDS for front wheels is analysed instead of rear wheels which are commonly investigated in the literature. According to steering angle and speed of EV, the speeds of the front wheels are calculated...
The scope of the project is to model the parallel parking system of nonholonomic vehicles through Embedded Processors. Nonholonomic vehicles are designed by analyzing the nonholonomic constraints and control by using PI controller to achieve the closed loop response. Then the parallel parking of nonholonomic vehicles are established using path planning algorithm. The path planning algorithm is developed...
This paper presents design of Electronic Differential System (EDS) for an Electric Vehicle (EV) with in-wheel motor. EDS is generally used in EVs due to some drawbacks of mechanical differential such as being heavy systems and mechanical losses caused by the powertrains. According to the turning angle of the wheel, task of EDS for front wheels is to adjust rpm of the wheels. On the contrary for rear...
This paper presents modeling and simulation of Electronic Differential System (EDS) for the dual-front-wheel independently driven Electric Vehicle (EV). Electronic differential is utilized in EVs due to some drawbacks of traditional mechanical differential such as being heavy and bulky systems which are not convenient for EV, and mechanical losses caused by the powertrains. In this study, an EDS for...
The purpose of this study is to model, simulate and verify the entire vehicle handling dynamics of UNS Electric vehicle (Semar-T) using Matlab-Simulink. The modeling of Semar-T electric vehicle begins from the derivation equation of motion and Dugoff tire model. The equations are derived using Second Newton's Law and then simulated in Matlab-Simulink environment. Five handling condition tests are...
Recently, due to improvement of vehicle driving performance improvement by independent operation per vehicle wheel and fuel efficiency improvement by simplification of driving system, the study on independently operable in-wheel motor is actively in progress. The commercialization, however, is delayed due to security of durable performance and credibility of actuator, security of vehicle safety in...
This paper describes the use of a formal optimisation procedure to optimise a plug-in hybrid electric bus using two different case studies to meet two different performance criteria; minimum journey cost and maximum battery life. The approach is to choose a commercially available vehicle and seek to improve its performance by varying key design parameters. Central to this approach is the ability to...
This article designed a steering trapezoid of four-wheel steering construction vehicles with the MATLAB optimization toolbox. It solve out the relationship between the inside steering angle and outside steering angle in actual, to make the difference between the angle of inside wheel rotation in theoretical and angle of inside wheel rotation in actual minimum as the optimization goal, solving the...
A co-simulation platform for ICC (Integrated Chassis Control) system was built under the MATLAB and AMEsim environment. A vehicle dynamic model was developed using the MATLAB software, and a dynamic response model for hydraulic brake system was built using the AMESim software. Then, the data exchanged through the AMEsim special interface module and the MATLAB S-function. The co-simulation platform...
Electric vehicles shut off the electric braking only rely on the hydraulic braking while emergency brake, it Although make control algorithm easy, but doesn't make full use of the fast and accurate advantage of the electric braking, and doesn't make better quality of the Anti-lock Braking System if make use of motor's driving torque while wheel is about to braked. so developing new control methods...
In 2010, over 20.3 million vehicles were recalled. Software issues related to automotive controls such as to cruise control, anti-lock braking system, traction control and stability control, account for an increasingly large percentage of the overall vehicles recalled. We have developed AutoPlug, an automotive Electronic Controller Unit (ECU) test-bed to diagnose, test, validate and verify controls...
An experiment platform which aims to study the integration control of steering and braking is designed due to the research requirement of vehicle active safety control strategy. A test vehicle which is equipped with the systems of steer-by-wire and brake-by-wire is provided and the Autobox, combined with Matlab/simulink and MSCCarsim,is used to fulfill the RCP(Rapid Control Prototyping) and HIL(Hardware-in-loop)...
Based on multi-body system dynamics and fuzzy control theory, this paper researches the Vehicle Dynamic Control (VDC) system, and a multi-body dynamics vehicle model was built up by dint of ADAMS/Car software. A fuzzy controller has been designed for the VDC system under Matlab environment, and the controller can generate a suitable yaw moment which is obtained from the difference of the brake forces...
System modeling and computer aided simulation have been increasingly used in vehicle engineering to reduce development time, improve and simplify complex systems. A Type C Electronic Power Steering (EPS) modeling and simulation program has been developed based on Matlab. The aim of this simulation is to simulate completed system dynamic behavior regarding optimizing main parameters of system model.
In this paper, a new type vehicle with four wheel independent steering (4WIS) and four wheel independent driving (4WID) travelling mechanism is designed. Under careful analysis of the advantages and disadvantages of both the mechanical and electrical features, the design of platform is discussed. Besides, a corresponding control structure is addressed. Under the Co-simulation using ADAMS and MATLAB/Simulink,...
In this paper a method of designing the rule bases of fuzzy controllers for Wheel Slide Protection Systems (WSP) for rail vehicles is presented. In this method results of simulation of two reference controllers are used, both of which use signals which are nor available during normal operation of the systems, i.e. adhesion coefficient and translation velocity of the vehicle. Simulations have performed...
Steer-by-wire is such a technology that replaces the traditional mechanical and hydraulic control systems by electronic control systems. As the next generation automotive network communications protocol, FlexRay meets the future demands of steer-by-wire network. This paper builds the co-simulation model of steer-by-wire and FlexRay bus on the basis of CANoe_MATLAB, which combines the advantages of...
Aim at the simplified vehicle vertical two-wheeled model, a improved fuzzy PID controller was devoted to the Anti-lock Braking System (ABS). This controller was obtained based on inosculating with fuzzy PID controller and the algorithm of objective function Automatic optimization. A simulation result was gotten through simulation of MatLab Simulink environment. This result shows that the control system...
In order to solve the problem of excessive understeer of four-wheel -steering vehicle with zero mass-center side-slip angle and proportional control at high speed, using fuzzy logical control method, adding direct yaw moment control of four wheel steering to solve this question. a two DOF four-wheel-steering vehicle model with integrated control of steering angle and yaw moment was established. The...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.