Modular Battery Concept for Short-Distance Traffic

Modular Battery Concept for Short-Distance Traffic.

Electric mobility may be economically efficient today. Battery-based electric drives can be applied efficiently in urban buses, for instance. Frequent acceleration and slow-down processes as well as a high utilization rate in short-distance traffic make their use profitable even when considering current battery costs. At the IAA International Motor Show in Frankfurt, Karlsruhe Institute of Technology (KIT) will present an e-city bus demonstrator to illustrate the concept.


The key modules of the demonstrator are a drive train with a high-torque electric motor, a high-voltage network, a battery management system, and a novel modular battery system with lithium-ion cells made in Germany. At the IAA, the demonstrator developed for drive tests will present options for the design of the electric drive train of buses.
Using the demonstrator, the innovation potential of KIT's research results can be validated and interaction of the components can be analyzed experimentally under the simulated operating conditions. "In this way, the demonstrator contributes to the further development of electric mobility," Andreas Gutsch, coordinator of the Competence E project at KIT, explains.
The battery system consists of flat modules that can be stacked to reach the dimensions and electric characteristics desired. Various spaces in the different types of vehicles can be used for accommodating the energy storage system. The battery management system and drive control developed for the KIT demonstrator allow for driving operation taking into account the current performance limits of the system and its components.
"Energy efficiency of an electric bus can be increased by an adequate selection of components already," says Martin Gießler, Head of the demonstrator development project. "Of course, an anticipatory operation and recuperation strategy plays an important role." By means of recuperation, braking energy is converted into electrical energy again. The drive consists of a low-torque engine supplying a high driving torque for the vehicle. The engine is connected directly with the differential gear of the rear axle. It decreases the gear reduction to be implemented and, hence, ensures a high efficiency of torque transmission.
The e-city bus demonstrator development project was funded by the Federal Ministry of Economics and Technology


Comments

Post a Comment

Popular posts from this blog

Graphene from gases for new, bendable electronics

Image
Graphene from gases for new, bendable electronics. Flexible, translucent and ultrathin, layers of carbon atoms called graphene are also excellent electrical conductors that could find use in flexible computer displays, molecular electronics and new wireless communications. Making high-quality graphene sheets is usually a slow, painstaking process, but now several research groups have discovered ways to make patterned graphene circuits using techniques borrowed from microchip manufacturing, which can be scaled up for mass production. Layers of graphene — carbon atoms arranged in a chicken-wire pattern one atom thick — can be manually peeled away from the graphite in pencils using adhesive tape. In contrast, the new technique causes carbon atoms in a vapor of hydrocarbons to settle onto a nickel surface and arrange into graphene’s characteristic pattern of hexagons. Using standard chip-making techniques, circuit designs are etched into the nickel surface. As the graphene layer
Read more

Atomtronics trying to replace Electronics....Using Ultracold Atoms Instead of Electrons, Atomtronics Could Revolutionize Computing

Image
Atomtronics trying to replace Electronics... We all have heard of electronics, mechatronics and maybe even spintronics, but the latest buzzword doing the rounds of physics labs is atomtronics—the science of creating circuits, devices and materials using ultra-cold atoms instead of electrons Electronics is the field of electron movement in the circuits governed by the use of wires, silicon and electricity. All modern electronic devices contain transistors as the fundamental building blocks. Until recently, electronics had been based on a single property of electrons—their charge. But now physicists have begun to exploit another property—electron spin. So-called spintronics promises to revolutionise electronics because it allows information to be encoded in an entirely new way. Though electronics is bestowed with a large number of inherited advantages, but in the era of quantum electronics it is facing new challenges. Because electrons lose any possible initial quantum sta
Read more

Wireless Battery Charging.

Image
Wireless Mobile Battery Charger Circuit  0.1  Wireless Battery Charger Circuit Principle:       1  Wireless Power Transfer Circuit Diagram: 1.1  Wireless Mobile Charger Circuit Design:  1.2  How to operate this Wireless Power Transfer Circuit? 1.3  Wireless Battery Charger Circuit Advantages: 1.4  Wireless Power Transfer Circuit Applications: 1.5  Limitations of the Circuit:  Wireless Battery Charger   Emerging technologies are making our life simpler these days. With the introduction of mobile phones, life has changed rapidly. This is a dream of radio engineering. Mobile phones merged land line telephone systems. These days, many advancements in the mobile phones were introduced. These advancements provide many services such as text, internet etc. But although there are many advancements in the technology, we still rely on the wired battery chargers. Each phone will have its own designed battery charger. Thus the battery chargers are required to carry everywhere to keep the battery ba
Read more