Design and Optimization of Tubular Permanent Magnet Linear Motor for Electric Power Steering System
- Hamidreza Akhondi; Jafar Milimonfared
Recent advances in Electric Power Steering technology have promised significant improvements in vehicle handling performance and safety. Electric power steering is a new kind of power steering which is developing rapidly these years due to their superior energy efficiency and energy conservation. This paper presents a pos-sible design solution of an electric power steering actuator for hybrid electric vehicles. The design criteria of a tubular linear motor with interior permanent magnet are described and a tubular interior permanent magnet lin-ear motor is designed and optimized with respect to weight and force ripple for Electric Power Steering applica-tion. Such an application...
- Mahmudul Alam; Jaber Al-marri; Dr. Shehab Ahmed
We sincerely believe that this document is an honest appraisal of our project. The report contains detailed analysis and description of the work that we have done to successfully design and simulate the whole power train of the electric vehicle. The report also discusses the sporadic successes we had in product prototyping. At the end, the report identifies the reasons why we could not achieve some of our project objectives set at the beginning of Fall 2009 semester and includes recommendations about how those objectives can be achieved. While writing the report we have always tried to keep our focus...
Development of Hybrid Electric Compressor Motor Drive System for Hybrid Electrical Vehicles
This paper presents a design optimization process for interior permanent magnet synchronous motors (IPMSM) for hybrid electric compressors (HEC) which are applied to hybrid electrical vehicles. A hybrid electric compressor is composed of an electric motor driving section and an engine driving section which is connected to the engine by a pulley belt. A hybrid electric compressor driving motor requires half of the full driving power of a compressor. Even though an engine is not operated at the idling stop mode, the electric motor drives the air-conditioner compressor by itself so that the air conditioning system can produce its minimum...
THERMOECONOMIC OPTIMIZATION OF ‘ A HEAT PUMP SYSTEM
- G. Wai
Abstract-We present the application of thermocconomics to the optlmlratwn of a single-stage heat-pump cycle. The method is well suited for application to thcrmodynamlc proccsscs and yicldb exergy losses. The marginal cost of an arbitrary variable can also be calculated. The cllicienc~cs 01 Ihe compressor. condenser, evaporator, and electric motor arc chosen a \ the decision variables which are to be optimized. Parameters such as the price of electricity and the tcmpcraturc of the delivered heat may vary among optimizations. and results arc presented for dlffcrcnt parameter values. Contemporary technical systems are often constructed without detailed prior analysis of the effects...
Electric motor drive selection issues for HEV propulsion systems: A comparative study
- Mounir Zeraoulia; Student Member; Mohamed El; Hachemi Benbouzid; Senior Member; Demba Diallo; Senior Member
Abstract—This paper describes a comparative study allowing the selection of the most appropriate electric-propulsion system for a parallel hybrid electric vehicle (HEV). This paper is based on an exhaustive review of the state of the art and on an effec-tive comparison of the performances of the four main electric-propulsion systems, namely the dc motor, the induction motor (IM), the permanent magnet synchronous motor, and the switched reluctance motor. The main conclusion drawn by the proposed comparative study is that it is the cage IM that better fulfills the major requirements of the HEV electric propulsion. Index Terms—Comparison, electric propulsion, hybrid...
The Xebra Electric-Hydraulic Hybrid Vehicle
- Er Duggan; Andrew Lanoue; Michael Makowski; Aazam Vishram
The Xebra electric-hydraulic hybrid vehicle is an ongoing project at the University of Michigan sponsored by the Environmental Protection Agency (EPA). This vehicle is designed for intercity driving, where frequent start and stop situations exist. For this semester, the EPA proposed a challenge to safely increase the Xebra’s current top speed from 35 mph to 45 mph while maintaining its current acceleration, efficiency, range, aesthetics, and reliability. The EPA also preferred that any alterations to the vehicle be reversible and transferable to future semesters. The currently installed regenerative braking system is designed to recover kinetic energy for future use by...
Simulation and Control Aspects of a Plug In Hybrid Electric Vehicle
- Athanassios D. Karlis; Reza Ghorbani; Eric Bibeau; Paul Zanetel
enables to simulate renewable energy vehicles using combination of propulsion system and fuels by adapting library modules to suit particular applications. The simulation software predicts the energy use of the vehicle, taking into account the duty cycle and driver habits. Library modules have been developed to simulate the Plug-In Hybrid Electric Vehicle (PHEV) architecture as this platform offers energy scenario for cars and buses allowing combination of energy sources that include renewable electricity and renewable biofuels. REVS was developed to address the next generations of vehicles, which will not rely exclusively on the use of fossil fuels burnt in an...
10. Recommended Practice for Electric Motor Periodic Inspection and Maintenance
APTA Rail Transit Standards Executive Committee Abstract: This recommended practice covers basic procedures for periodic inspection and maintenance of electric motors on rail transit vehicles.
AVEC ‘04 Optimization of Supervisory Control Strategy for Parallel Hybrid Vehicle with Provisional Load Estimate
- Ivan Arsie; Marco Graziosi; Cesare Pianese; Gianfranco Rizzo; Marco Sorrentino
The paper focuses on the simulation, analysis and control of the energy flows in a parallel hybrid electric vehicle (HEV). HEVs operation is concerned with the on board conversion of chemical, electrical and mechanical energy and its optimal control is essential in order to increase the global system efficiency. A dynamic model is used to describe the driver-vehicle interaction for a generic transient and to simulate the vehicle driveline, the internal combustion engine (ICE) and the electric motor/generator (EM). An estimate of future vehicle load is performed with a neural network to optimize the supervisory control strategy during the estimated...
OPTIMALIZATION OF HYBRID VEHICLE CONTROL
- Marcin Terelak; Andrzej Kaĩmierczak
A hybrid electric vehicle is a vehicle which combines a conventional propulsion system with an on-board rechargeable energy storage system to achieve better fuel economy than a conventional vehicle without being hampered by range from a charging unit like a battery electric vehicle, which uses batteries charged by an external source. Hybrid vehicles have a conventional engine (gasoline or diesel) as well as a large battery and an electric motor, so that the wheels of the vehicle are driven by both an internal combustion engine and an electric motor. There are various arrangements for these two motors. In the introduction...
A High-Torque Low-Speed Multiphase Brushless Machine—A Perspective Application for Electric Vehicles
- Marcelo Godoy Simões; Senior Member; Petronio Vieira; Associate Member
Abstract—This paper presents the design, analysis, simulation, and modeling of a high-torque low-speed multiphase permanent-magnet brushless machine. The machine fits an in-wheel motor ar-rangement to be used for electric vehicle applications. This paper presents issues regarding the high-level modeling comprised of a transient model in conjunction with their corresponding experi-mental evaluation. Analysis was made to combine the modeling efforts with the expected behavior concerned with mutual induc-tance and armature reaction effects, so as to have realistic simu-lation results verified by the experimental setup. Comprehensive experimental results corroborate the work. Index Terms—Brushless machines, digital signal processors, electric machines, modeling, motor drives....
Dynamic Modeling and Simulation of a Switched Reluctance Motor in a Series Hybrid Electric Vehicle
- Siavash Sadeghi; Mojtaba Mirsalim; Arash Hassanpour Isfahani
Abstract: Dynamic behavior analysis of electric motors is required in order to accurately evaluate the performance, energy consumption and pollution level of hybrid electric vehicles. Simulation tools for hybrid electric vehicles are divided into steady state and dynamic models. Tools with steady-state models are useful for system-level analysis whereas tools that utilize dynamic models give in-depth information about the behavior of sublevel components. For the accurate prediction of hybrid electric vehicle performance, dynamic modeling of the motor and other components is necessary. Whereas the switched reluctance machine is well suited for electric and hybrid electric vehicles, due to the simple...
Multilevel converters for large electric drives
- Leon M. Tolbert; Senior Member; Fang Zheng Peng; Senior Member; Thomas G. Habetler; Senior Member; A. Background
Abstract—This paper presents transformerless multilevel con-verters as an application for high-power and/or high-voltage electric motor drives. Multilevel converters: 1) can generate near-sinusoidal voltages with only fundamental frequency switching; 2) have almost no electromagnetic interference or common-mode voltage; and 3) are suitable for large voltampere-rated motor drives and high voltages. The cascade inverter is a natural fit for large automotive all-electric drives because it uses several levels of dc voltage sources, which would be available from batteries or fuel cells. The back-to-back diode-clamped converter is ideal where a source of ac voltage is available, such as in a hybrid electric vehicle....
- Turbinas De; Vapor Por; Motores Electricos En; Tandem De; Molinos Del; Ingenio La Troncal; Tesis De Grado; Presentada Por; Álvaro Enrique; Cueva Urgiles; Luis Ángel; Molina Idrovo; José Manuel; Matute Fernández
A mi Padre Celestial, que con su amor y bondad guiaron mi camino por las sendas del conocimiento. Mis más sinceros agradecimientos a todas aquellas personas que incondicionalmente me brindaron su apoyo y de manera muy especial a mis queridos padres Rigoberto Cueva y Guadalupe Urgiles por ser ejemplos de sacrificio, constancia, dedicación y por inculcarme siempre el deseo de superación en el campo profesional, ético y moral. Álvaro Enrique Cueva Urgiles.
The use of series compliance and variable transmission elements in the design of a powered knee prosthesis
- Mooney, Luke Matthewson
Compared to non-amputees, above knee amputees expend significantly more metabolic energy. This is a result of the passive nature of most knee prostheses, as the development of clinically successful powered knee prostheses has remained a challenge. The addition of powered elements, such as electric motors, allow prosthetic knees to more closely emulate natural knee biomechanics. However, the addition of powered elements presents a new challenge of creating energy efficient devices that do not require frequent charging or excessively large batteries. In this thesis, a general optimization routine was developed to simulate and evaluate the electrical economy of various actuator architectures....
Methods for non-intrusive sensing and system monitoring
- Schantz, Christopher James
Improving the efficiency of collection, transmission, and consumption of resources is the focus of a wide swath of engineering research. Current technological solutions for capturing or mitigating energy and resource waste are asymmetrical. A dilemma is becoming increasingly apparent in monitoring and control systems. Networking tools provide potentially inexpensive remote access to information, but gathering useful information, however, may require the installation of an array of costly and intrusive sensors. The promise of highly effective and useful networked solutions is hemmed in by a sensing frontier consisting of significant challenges. At any time in the service life of a machine...
V olk er Krebs
- Michael Back; Matthias Simons
Abstract: T elematics allo w a prediction of the future driving conditions of a car along some time horizon. This prediction oers a kno wledgeof the torque request caused by the route ahead and can be used for implementing sophisticated operating strategies for Hybrid Electric Vehicles (HEVs). The inten tion of the present paper is to describe a method which minimizes the fuel consumption of the system beyond the prediction horizon. Therefore the strategy determines the best operating conditions of the combustion engine and the electric motor with respect to the predicted torque request and the SOC of the battery.
- Andrew J. Cathcart; Chiara Ferrario; Susan A. Ward; Stan Grant
Abstract—Aim: The aim of this study was to investigate feed-back control strategies for integration of electric motor assist and functional electrical stimulation (FES) for paraplegic cycling, with particular focus on development of a testbed for exercise testing in FES cycling, in which both cycling cadence and workrate are simultaneously well controlled and contemporary physiological measures of exercise performance derived. A second aim was to investigate the possible benefits of the approach for mobile, recreational cycling. Methods: A recumbent tricycle with an auxiliary electric motor is used, which is adapted for paraplegic users, and instrumented for stimulation control. We propose a...
Transmission Differential Controller
- Mark Ehsani; Ph. D; F. Ieee; F. Sae; Robert M. Kennedy; Endowed Chair Professor
Electric vehicles (EVs) use an electric motor for traction, and chemical batteries, fuel cells, ultracapacitors, and/or flywheels for their corresponding energy sources The drive train consists of three major subsystems: Electric motor propulsion, Energy source, and
Simplified Sensorless Control for BLDC Motor, Using DSP Technology
- Juan W. Dixon; Matías Rodríguez; Rodrigo Huerta
This paper describes a simple way to control, in a sensorless way, a Brushless DC (BLDC) motor for electric vehicle applications. To control this machine it is generally required to count with a position sensor because the inverter phases, acting at any time, must be commuted depending on the rotor position. Encoders and resolvers have been used for sensing rotor position with respect to stator. These sensors, however, make the motor system more complicated and mechanically unreliable. In this paper, a simple solution is presented to determine the commutation sequence of a BLDC motor with a sinusoidal flux distribution. The...