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Recently, Intelligent Transport Systems (ITS) technology have been intensively studied to solve environmental and energy problems by improving traffic flow. Along with the development of ITS and autonomous driving technologies, vehicle velocity control has to be considered for energy efficiency. In this paper, a minimum time autonomous driving (MTAD) system, which minimizes the traveling time considering...
The increase of the number of electric machines and drives in automotive applications leads to enhance the overall functionality and efficiency of the vehicles but it determines reliability problems. Hence, the automotive industry is moving towards the introduction of fault-tolerance capability in those components involving safety issues.
With the advent of NEMMP (National Electric Mobility Mission Plan), increase in both production and demand of hybrid and electric vehicles is expected in coming years. Mild hybrid vehicles (MHV) are sought as one of the most plausible options among alternative-fuel-vehicles. There are two prime goals behind development of MHV — a) increase in fuel efficiency and thereby reducing emissions b) keeping...
The paper deals with designing and fabrication of a light weight (one man) electric vehicle prototype powered by switched reluctance machine SRM and controlled by half bridge low-voltage high-current converter. The machine will provide propulsion to drive light weight electric vehicle. The idea is to utilize the vehicle for disable persons by utilizing the methodology with advance design. The paper...
This paper presents a study on performance optimization for switched reluctance motor (SRM) designed for commuter-type electric vehicle. We designed and analyzed a model. We calculated the output limit and verified the power supply voltage is capable of causing current to flow when the motor is driven at maximum speed.
Reluctance synchronous (RS) and field-intensified permanent magnet (FI-PM) motors are designed and optimised for a variable-gear electric vehicle (EV) drive in this paper. Recent literature shows that EVs with variable-gear drive trains operate at higher drive-cycle efficiencies than fix-gear EV drive trains. The advantages and design challenges of variable-gear EV drives are discussed in the paper...
Drive systems based on a switched reluctance motor (SRM) are important alternatives in traction applications because of the motor simple and robust structure without using rare-earth permanent magnets. In this paper, different aspects of the SRM-based drive systems for the vehicle traction are presented and reviewed. Motor design and comparison with the permanent magnet motors, power electronics,...
Recent years bring new European Union regulations concerning harmful emissions for road vehicles. The hybrid electric and electric mobility is a technology revolution for the automotive industry. In response to the stringent regulations and requirements enforced, vehicle manufacturers are developing new strategies, using hybrid electric or electric powertrain solutions. In order to obtain the goal...
The design process of an electric vehicle introduces several new performance objectives, such as energy consumption, thermal management and acoustic behavior. In this paper, an integrated multiphysics design approach has been developed for the simulation of switched reluctance based drivetrain systems. This kind of modeling is able to aid in the virtual prototyping of an electric vehicle by allowing...
This paper proposes a zero speed control method for electric vehicle (EV) using the switched reluctance motor (SRM). In this method, the assist torque is provided to the motor to prevent the vehicle from moving back. The travel resistance of the vehicle on the slope can be estimated by the minimal order observer. The assist torque is calculated from the estimated travel resistance. The proposed method...
The electric drive system is an important part of the electric armored vehicle, whose performance was closed related to fast maneuverability. There are some characteristics are requested such as fast start-up, wide speed regulation, favorable regenerative braking capability, high reliability and so on. In this work, an electric drive system with switched reluctance motor (SRM) has been built. The...
Switched reluctance machines have emerged as an important technology to be deployed in automotive electric drives; they represent a real alternative to conventional electrical machines in automotives. This paper reviews the technology status and trends in switched reluctance machines. It covers the various aspects of modeling, design, simulation, analysis, and control. Finally, it discusses the impact...
The mechanical property curve, efficiency and speed operation regions of induction traction motor for electric vehicle are introduced here. According to the vehicle's driving characteristic, the motor mechanical property curve is determined. Within the scope of mechanical property region of the motor, the method of regulating motor efficiency region is presented. Within the speed region, the relation...
The powertrain dynamic simulation model of an integrated starter/generator (ISG) hybrid electric vehicle (HEV) was established. Based on it, the parallel electric assist control strategy (PEACS) was analyzed and designed. The analysis of dynamics performance and fuel economy of the model was carried out under the FTP drive cycle, which can provide a design reference for the setup of the powertrain...
The integrated starter generator (ISG) technique has been widely used in the past in hybrid electric vehicle (HEV) drive trains. Instead of 2 independent electric machines, as in conventional vehicles, the ISG functions both as a starting engine as well as a generator, which facilitates the generation of on-board electric power. In this paper, the usage of the ISG in various advanced HEV topologies,...
Due to the increasing prices of gasoline in the world market, more and more customers and car manufacturers are looking forward to the alternate energy sources to power up their vehicles. A lot of research has been taking place and vehicles fitted with solar cells, fuel cells, battery powered vehicles as well as hybrid vehicles are becoming available in the market. Cost as well as weight of the vehicle...
A comparative study of several fault-tolerant electrical drives is presented in this paper. As the application is concerned, the authorspsila attention was oriented towards the vehicle transportation. Thus, the main electrical drives under study are: the induction, the switched reluctance and the permanent magnet synchronous machine, respectively. The present work will explore the aforementioned drivespsila...
A linear and a rotational switched reluctance drive with a large airgap are developed and manufactured for a test track of autonomous railway vehicles. The motor design, a coupled model and the results of finite-element-simulations are presented, along with the test bed structure and measurements. The design and control objectives are to maximize the efficiency and to minimize the acoustic noise at...
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