2009 June - 25 articles
Daimler is presenting its latest fuel cell vehicle, the Mercedes-Benz B-Class F-CELL in 2009. Being one of the first series-produced fuel cell vehicles so far, the B-Class F-CELL will be a milestone on the road to commercialization of hydrogen-powere...
The charging of batteries of plug-in hybrid electric vehicles at home at standard outlets has an impact on the distribution grid which may require serious investments in grid expansion. The coordination of the charging gives an improvement of the gri...
A driveline for electric vehicles is presented. The propulsion system is operated at a higher voltage than the primary energy source. The batteries selected as the primary energy source deliver power to the vehicle through a motor-generator wounded w...
In the past internal combustion engines in commercial trucks, buses, and automobiles were often allowed to idle during stops, whether short or extended. This practice mitigated engine non-starts but increased fuel usage along with air emissions and a...
This paper describes a dynamic simulation model built to assess Plug-in Hybrid Electric Vehicles (PHEVs) performance and lithium-ion battery performance installed in PHEVs. First, we examine vehicle performance. In particular, the effects of engine o...
To lead up to and coincide with FIFA World Cup to be hosted by South Africa in 2010, SANERI is implementing a Green Transport Demonstration Project. The purpose is to showcase clean energy and green transport technologies in order to confirm serio...
This paper investigates whether the vehicle taxation system in Belgium is stimulating the demand of clean vehicle technologies. A life cycle cost analysis will be performed to evaluate the cost-efficiency of several vehicle technologies within the cu...
With ever-increasing demand on energy conservation, there is fast growing interest in the technologies to improve the fuel economy for hybrid electric vehicles (HEVs), especially the exhaust gas waste heat energy recovery. Meanwhile, the use of solar...
Research on motion control of electric vehicles has progressed considerably, but traction control has not been so sophisticated and practical because the velocity of vehicles and the friction force are immeasurable. This work takes advantage of the f...
This paper presents an improved and easy-to-use battery dynamic model. The charge and the discharge dynamics of the battery model are validated experimentally with four batteries types. An interesting feature of this model is the simplicity to extrac...
The following article will analyze the benefits of retrofitting a diesel-electric bus by hybridizing its drive train with a supercapacitor based energy storage system (ESS). Several power flow management strategies will be proposed and compared; and...
The transportation sector in Norway represents approximately 30 % of the CO2-emissions. In order to significantly reduce CO2-emissions, measures towards the transportation sector have to be addressed. This includes both efficiency and new vehicle fue...
An innovative subway has been proposed using supercapacitors as energy source. In this paper, are presented different possibilities to reduce on-board stored energy in order to downsize the on-board energy storage subsystem. Special attention is paid...
Nowadays, the establishment of the technologies of contactless power transfer (CPT) for electric vehicles (EVs) are needed. The system can provide people with a convenient charging system which can powers their EVs wirelessly and automatically when t...
To build a lithium battery system from single cells for use in an electric drive system the coupled electrochemical and thermal characteristics of these cells have to be well-known. Otherwise it is not possible to find the best cell for a given appli...
Consumer demand for fuel efficient, low-emission vehicles is growing. This trend is motivated on one hand by the increasing fuel cost and on the other by government incentives and increased awareness. By hybridizing and electrifying powertrains, fuel...
This paper introduces the parameter prediction and modelling methods for the traction motor of hybrid electric vehicle (HEV). In the general HEV simulation, the traction motor is mainly defined by efficiency map and torque/speed curve. Therefore, thi...
This paper deals with torque and cogging torque analysis of interior permanent magnet (IPM) motor considering anisotropy of electrical steel sheets. Generally, cogging torque is caused by tooth and slot structure in permanent magnet motor. But, magne...
Forklift for industrial field is mostly used in closed area like warehouses or factories. Therefore, the emission issue of forklift is more serious than that of usual vehicles outdoors. And forklift is required the compact size and high power driven...
In this paper, simulation and test results of a low floor Series Hybrid Electric Vehicle running in BUSAN city driving mode are presented. Hyundai Heavy Industries Company and Daewoo Bus Corporation have jointly developed a prototype Series Hybrid El...
Due to expensiveness of PHEV batteries, the dimensioning of the batteries is very important. We derive the marginally optimal size from a consumer economics perspective and show that a crucial factor for optimal size and profitability is the marginal...
Heavy-duty vehicles OEMs have an increasing interest in alternative power train solutions. To gain benefits of hybrid power train, proper power bus control must be implemented. Control strategy refers to means necessary to meet duty cycle power deman...
A fuel cell is most interesting new power source because it solves not only the environment problem but also natural resource exhaustion problem. In this paper, hydrogen gas flow in micro-channel was numerically analyzed about various channel shapes...
Electric- and hybrid-electric bus deployments have sometimes failed because the operating agencies did not have a clear understanding of how the performance capabilities of any particular bus match up with the requirements of the operational duty cyc...
The National Learning Demonstration is conducting an integrated field validation to examine the performance of fuel cell vehicles and their supporting hydrogen infrastructure. NREL has now analyzed data from over four years of the six-year project, i...
