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This paper describes an energy management strategy for an electric vehicle (EV). The proposed EV architecture contains a pack of the batteries which presents the energy source and a pack of the supercapacitors (SC) used as power source. The pack of the batteries produces the necessary energy to move forward the vehicle while the pack of the SC produces the lacking power in acceleration and in braking...
This paper deals with the study and implementation of a losses minimization control method for an integrated multi-drives topology used to interface a multi windings induction machine to more storage units in hybrid electric vehicle parallel drivetrains. The main target is to optimize the management of multi-directional power flows, by reducing the power losses in the induction machine as well as...
This paper first shows efficiency maps of electric power train based on a two battery High Efficiency Energy Conversion System (HEECS) chopper. HEECS is based on the principle of partial power conversion, and the overall efficiency of HEECS chopper is high and over 99% [1]. The efficiency of this power train was measured in states of constant speed and constant torque by the motor test bench. Second...
For sensorless control of switched reluctance motor, it is significant to improve the accuracy of the angle estimation. In traditional current-gradient method, it is thought that the null current gradient point appears just at the pole overlap position without considering the magnetic saturation, which is exploited as the reference position in the cycle. However, the actual null current gradient position...
Testing of electric vehicle drives in real traffic conditions is relatively expensive and complicated task. Therefore new laboratory methods, enabling testing and special parameters of electric drives measurement "like in real traffic" are in the looking for. One of most effective methods is based on HIL (Hardware In the Loop) which represents combination of simulation methods and measurements...
This paper validates the advantage of using an integrated electric vehicle-battery model in torque control application. In the integrated electric vehicle-battery model, battery dynamics is explicitly included in the model. A well-known linear quadratic integral (LQI) design is adopted here to have an optimal controller with zero tracking error. The energy consumption is, however, observed through...
Co-simulation can greatly improve the simulation accuracy by integrating advantages of different software in a unified system. In this paper, co-simulation of energy management strategy for hybrid electric vehicle (HEV) is implemented through the secondary development in AVL InMotion system. Firstly, the models of the virtual driver, 3D road and traffic environment are realized in IPG CarMaker. Secondary,...
The dynamic and system reliability of driving system in battery electric vehicles (BEVs) highly depend on the fault diagnosis technology. In this paper, we provided a new data compression approach and validated it on a method based on neural network (NN) to detect both failures' types and degree in drive system. In time-/frequency domain several statistical features were extracted from signals acquired...
Electrification offers a great potential for commercial vehicles to significantly reduce energy consumption as well as CO2 and pollutant emissions during operation. The project eLift demonstrates the potential of the electrification of a special-purpose vehicle. A conventional diesel catering truck with hydraulic auxiliary lifting unit is to be replaced by a more efficient electrically driven truck...
Battery electric vehicles (BEVs) have the potential to replace conventional vehicles, but the short driving range is currently limiting their diffusion. Using analytical methods this paper compares two electric powertrains with respect to energy consumption and efficiency: the standard single-motor architecture, derived from conventional internal combustion engine vehicles and equipped with a high-speed...
Wheel hub drives provide the opportunity to control the torque at every wheel independently. Thus, safety functions like anti-lock braking system (ABS) or electronic stability control (ESC) can be implemented in the drives as well. This enables the substitution of friction brakes at the driven wheels by electric drives. In this paper, resulting requirements for the drive system are presented and an...
The paper investigates on energy management strategies during conversion of the conventional vehicle into the plug-in hybrid electric vehicle (PHEV). The Tata Indica converted PHEV is considered with designed specification of the electric drivetrain. The energy management system decides the preferred operating points for the different powertrain subsystems (i.e. set points for the engine and motor...
In recent years, stricter regulation of vehicle emissions, increasing fuel prices and government grants have lead to a rapidly growing interest in electrical mobility. However, potential customers are discouraged by the limited range of electric vehicles involving reduced flexibility. This paper presents a modern, real-time capable approach using road data obtained from an advanced navigation system...
The fluctuating nature of ocean waves requires the use of energy storage in wave energy systems to smooth output power. This is particularly true when a wave energy system connects to a remote, weak grid. The energy storage requirement will vary depending on the number of wave energy generators and storage placement within the collector system. This paper investigates the variation of storage size...
In this study, a novel mode l of a Hybrid Electric Vehicle (HEV) based off the 2016 Chevy Volt is implemented and examined. The study will also examine the operation of the modified Series Parallel Hybrid Electric Vehicle (SPHEV) and modeled powertrain components contained within. The 2016 Chevy Volt has six unique modes of operation; however, the dual Permanent Magnet Synchronous Motor (PMSM) EV...
This paper presents a non-linear time-domain dynamic model to support the design, optimization, and characterization of electric vehicles, especially for racing application. The vehicle system is described by means of accurate mathematical models using standard simulation platforms: MATLAB® and CarSim®. The approach is based on co-simulation architecture offering flexibility, accurate dynamic performance,...
Wind power generation system based on four-port electromechanical converter (FPEC) is a new wind power system, which overcomes the shortcomings of many traditional wind power generation systems. According to its working mode and operating characteristics, this paper proposes an improved system control strategy as well as the concrete realization method based on fuzzy logic, which improves the energy...
In the present study, a real-time control strategy has been proposed for the plug-in hybrid electric vehicle based on the maximization of the powertrain efficiency. The proposed method formulates a cost function representing the expression of the power-train's overall efficiency in different driving mode. Then the engine and ISG motor's output torque is determined in order to maximize the efficiency...
Hybrid electric vehicle use internal combustion engine (ICE) and electrical power, so it has the advantages of strong power, low fuel consumption, low emissions and so on. The research object of this paper is the single-axle parallel hybrid electric bus. In this paper, a hybrid electric vehicle model including vehicle dynamics system, motor system, engine system, battery system, clutch and energy...
In order to save energy and improve the driving distance of electric vehicle, a regenerative braking control strategy based on fuzzy control for the electric vehicle with four in-wheel motors is proposed in this paper. Firstly, the braking force is distributed between front axis and rear axis to ensure the safety and stability of the vehicle. Secondly, the braking force is distributed between hydraulic...
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