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A new Interacting Multiple Model filter with two modes is introduced for estimating the vehicle yaw-rate, lateral velocity, road bank angle and crosswind force. One mode corresponds to a steering input, and the second to an external disturbance input. With moderate sensor demands, the presented estimator is shown to perform accurately in simulations, and outperforms a conventional Luenberger estimator.
Based on the model of TFC20 electric forklift, the composition and working principle of the steer by wire (SBW) system is introduced in this paper. And then the relationship between steering handle force characteristics and vehicle speed, the relationship between steering handle force characteristics and steering handle angle, and the relationship between steering handle force characteristics and...
A Simulink® Hybrid Electric Vehicle dynamics model for the control of energy management and vehicle stability is developed. The model encompasses a transitional vehicle speed input parameterized by the New European Driving Cycle. Internal combustion engine torque, motor torque and varying corner radii are set to the same time constraints as the drive cycle. Lateral acceleration, yaw rate and tyre...
Wheel slip control bases its effectiveness on operating in the maximum adherence zone, guaranteeing the correct handling of the vehicle in any moment. The use of brake-by-wire systems and electromechanical actuators makes possible to control each wheel slip independently, improving, as a result, the accuracy and performance of braking systems. In this paper, a new controller, based on reset control,...
Motor cycles are the common mode of transport of the middle class India. When the rider driving on the bumping road circumstances rider has to face problems results in exposure to whole body vibration. Motorcycle pitch is produced due to a sudden acceleration/ sudden deceleration or whenever the vehicle hits the pot hole / bump. The goal of this research was to design of motorcycle suspension system...
Cooperative braking control is a very important operation in vehicle platoon control for developing intelligent transportation systems (ITS), which can effectively increase road capacity, decrease safety hazard, and even avoid serial rear-end collisions. This paper focuses on cooperative braking control of autonomous vehicles, the objectives of which are to ensure intervehicles keep within the safe...
Regenerative braking is one of the most effective deceleration control methods in case of electric and hybrid vehicles. The properly controlled regenerative braking force of the electric motor(s) brings better braking safety, shorter braking distance, and less depreciation of the brakes if accompanied by the hydraulic braking modules. When the brake pedal is pressed, the electric motor is treated...
Efforts are made to investigate the behavior of active suspension system with application of fuzzy logic controller, for better performance against uncertain operating environment. Comprehensive analysis of the complex four degree of freedom system, for derived mathematical model, is performed with the application of Simulink, and a fuzzy logic controller is tested and suggested to improve the performance...
This paper proposes a new SMC (Sliding Mode Control) method with MPC (Model Predictive Control) algorithm for the slip suppression of EVs (Electric Vehicles). This method introducing the integral term with standard SMC gain, where the integral gain is optimized for each control period by solving an optimization problem based on the MPC algorithm to improve the acceleration performance and the energy...
Battery performance of a proposed solar car has been investigated under different road conditions while the car makes a nip in one of the longest routes in Dhaka city, using a model developed in Matlab Simulink. A significant reduction in energy consumption is observed when the car runs at lower speed, which is atthbuted to lower air drag at lower speed. Energy consumption further reduces with the...
For evaluating or training different kinds of vision algorithms, a large amount of precise and reliable data is needed. In this paper we present a system to create extended synthetic sequences of traffic environment scenarios, associated with several types of ground truth data. By integrating vehicle dynamics in a configuration tool, and by using path-tracing in an external rendering engine to render...
Electric Vehicles (EVs) are deemed as an appealing and practical solution for environmental and energy problems. The mileage per charge of EVs, however, is shorter than the mileage of Internal Combustion Engine Vehicles (ICEVs). In this paper, Range Extension Autonomous Driving (READ) system considering road gradient information is proposed. The proposed system optimizes the velocity trajectory and...
In this study a novel active suspension system concept is investigated. A 6 DOF model is obtained for a half vehicle system by using Lagrange method. The proposed active suspension system is designed and applied on this half vehicle model. The modeling of both the vehicle system and the proposed controller is explained. The proposed controller is also compared with a classical PID controller in order...
Electrohydrodynamic (EHD) conduction pumping technology offers an innovative way to control flow distribution in multi-scale environments. In EHD conduction, the interaction between a strong electrical field and dissociated electrolyte species generates a net body force and therefore a net flow in a dielectric fluid. EHD conduction pumps have simple designs with no moving parts, low power consumption,...
This paper aims to study the braking control strategy of an Electro-Mechanical Hybrid Braking system for Hybrid Electric Vehicles (HEVs). In this work, an HEV electro-mechanical hybrid braking system control strategy of braking force distribution was proposed. The layout of the hybrid braking system was introduced. Comparative simulations were carried out to validate the performance of the proposed...
Energetic Macroscopic Representation (EMR) has become more and more powerful tool to model and control the multi-physical systems. In literature, the well-known "magic formula" of Pacejka seems to be not adequately presented in EMR due to the conflict of energy balance. In this paper, the authors propose an EMR of tire-road interaction using Pacejka's model. The advantage of the proposed...
Supercapacitors are electrical components which have a higher capacity of storing energy compared to a normal capacitor. It also has a quick charging and discharging time in comparison to other sources of electrical energy. Due to this advantage, supercapacitors are often used as an additional energy source in an electric car. During regenerative braking, the supercapacitor can be charged and hence...
Based on the force analysis of the roll for vehicles under the extreme turning, comparative analysis and simulation verification are carried out for the two kinds of calculation methods of the roll critical safety speed under the situations of whether or not taking account of the effect of suspension in the vehicle roll analysis. From three aspects of "driver operation — vehicle structure parameter...
The dynamic stability of a vehicle is of profound significance which has led three wheel vehicles to be used for only low speed application. Static Stability Factor (SSF) is a commonly used safety rating for vehicles. In this paper, stability of a three-wheeled vehicle with two wheels on the front (2F1R), a three-wheeled vehicle with two wheels on the rear (1F2R) and a standard four-wheeled vehicle...
Sweeping Vehicle is an important tool to beautify the city environment with the characteristics of low cruise speed, less driving power consumption, and small operating area, which provides a good application prospect for the development of the electric sweeping vehicle. The characteristics of excellent stability at low speed, efficient energy conversion, convenient operability, and environment-friendly...
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