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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...
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...
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...
This paper presents the power stack design and experimental verification of 200kW interior permanent magnet motor for ship propulsion. The propulsion motor requires high efficiency to cover wide range load condition and high power factor for reducing battery capacity. The required load from propulsion characteristics are considered. The design criteria for selecting pole-slot combination for loss...
This paper presents technical and economical improvements of a newly developed interior permanent magnet synchronous motor (IPMSM) for a high end ebike and compares the improvements with the currently used drive motor. The new external rotor motor was optimized for hilly districts 10–15km/h and flat areas 25–30km/h which represent the main application scope for ebike drivers. Thanks to the varying...
Electrically Assisted Internal Combustion Engines are gaining a large popularity, as they allow to obtain a noticeable average vehicle efficiency improvement at a low cost. Two different approaches are considered in designing last generation vehicles: StartStop, or Micro-Hybrid, and Electrically Assisted Turbocharger. The energy balance of a vehicle equipped with electrically assisted internal combustion...
Formula Student is a university competition around the world where students are required to design, construct and compete with a race car in static and dynamic tests. Since few years ago, this competition has moved to electric propulsion. ETSEIB Motorsport Team at Barcelona, Spain has develop an electric race car and this paper presents the EMR and IBC developed for that in order to analyze the car...
A dual inverter with an open-end winding motor configuration is an attractive method to supply a higher voltage to a motor for electric vehicle (EV) applications. A topology utilizing two isolated dc sources is considered to reap the advantages of reliability and high voltage. Although this design may require two battery chargers, in this study, the use of only one charger to a main battery was considered...
Although the mathematics for defining field weakening expressions are relatively uncomplicated, the application of these expressions for practical field-weakening implementations is not well documented. This paper describes the derivation of simplified expressions for implementing field weakening in field-oriented control (FOC) algorithms for use in a high torque, permanent-magnet synchronous motor...
This paper presents an optimal current control for the hybrid excitation synchronous motor in electric vehicle application. The whole electric propulsion system is modeled including the battery and converters. The control aims to meet the torque and speed requirements while insuring minimal copper and iron losses as well as inverter and chopper losses. Extended Lagrange multipliers optimization method...
The recent emergence of plug-in electric vehicles in a global market can offer big challenges and opportunities for both basic and applied research. Although the electrical architecture of a Electric Vehicle (EV) or an Hybrid Electric Vehicle (HEV) can be considered standardized, the development of its different building blocks is an open problem whose solution could contribute to improve significantly...
This paper addresses the active control of a hybrid energy storage device, comprised of both battery and ultracapacitor cells embedded in a full electric shuttle. To distribute the power flows within the energy storage device, two criteria are under study, namely battery stress and global heat release minimization, and they are showed to be antagonistic. The optimization is carried out offline via...
This paper presents modeling and simulation of electric drive system for a hybrid electric vehicle which consists of a diesel engine, a flywheel-type PM generator and its converter, a Li-ion battery pack, six in wheel-type PM motors and their inverters. Only one set of the six motor/inverter sets is taken into account for the simplicity of modeling, since all of them have the same structure. This...
A model for the fuel cell-battery hybrid electric vehicle (FCHEV) power train in parallel configuration simulation based on the empirical formulation and MATLAB/Simulink blocks has been constructed with the power control strategy using logic threshold approach. Using accelerator pedal signal generated by the driving schedule as the primary input, the simulation implements difference power flow and...
This paper proposes methodologies to realize bidirectional power transfer between hybrid electric vehicles (HEVs) and the power grid for the most common HEV configurations. Only the internal power electronics and electric machines of the vehicle's propulsion system are being used, thus avoiding additional external power converters. Theoretical analysis and simulation results verify the effectiveness...
One of the important aim related to the transportation research activities is the development of a clean and efficient transport. Among the solutions, the hybrid electric vehicles are proposed to replace the conventional vehicles, due to their advantages of zero pollutant emissions, high efficiency and multi energy sources. In this paper a modular configuration representing a hybrid electric vehicle...
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