Haus der Technik, Autor auf EEHE

Thank you for the large number of papers. The scientific advisory board needs some time to evaluate the papers submited and organise the final program for the EEHE conference. You will get more information in December.

The registration for the conference is already open.
See you in Würzburg 2018!



April 09-11, 2018 in Münster/Germany
Further information:

6th eehe Conference –
Electrics / Electronics in Hybrid and Electric Vehicles and Electrical Energy Management
17-18.5.2017 in Bamberg

The performance capacity of 12V on-board networks has finally reached its limits. The start of series production of vehicles with an additional 48V system heralds a move to the universal use of two-voltage on-board power supply systems in the automotive sector. According to the most recent market forecasts, the basic system with starter generator, 48V lithium-ion battery and DC/DC converter will have a rapid market rollout in the next few years. Despite the high costs that were originally forecast, extensive market penetration is expected as the associated reduction in CO2 emissions is something all manufacturers will have to embrace.

Because of the shift of high-power loads from 12V to 48V and the introduction of new functions at the 48V level, a function and component landscape will develop at 48V, which will also have an effect on the E/E architectures of highly electrified vehicles such as plug-in hybrid and electric automobiles.

Participants in the eehe Conference – Electrics / Electronics in Hybrid and Electric Vehicles and Electrical Energy Management on 17-18 May 2017 in Bamberg will have the opportunity to meet all major players in this important future theme of automotive development at a single event. A further highlight here will be the accompanying trade exhibition. As in previous years, the event will be held in both German and English (with simultaneous translation).

All details of the conference can be found at

Your contact for the press release:
Bernd Hömberg, Head of Automotive Electronics
Leiter Fachbereich Automobil Elektronik
Phone +49 2 01 – 18 03-249

About HDT
Haus der Technik HdT serves as a platform for the transfer of knowledge and continuous professional development at the highest level. With more than 80 years of experience as an independent institute providing continuing education for specialists and managerial staff, HdT offers technical seminars, symposiums and in-house workshops to promote innovation and to provide for the transfer of know-how and expertise.

The original idea of the HdT founding fathers is still alive in the modern organisation. Our aim is to support companies to be successful in a competitive environment by offering services to knowledge workers.
HdT brings together science, research and industry. In partnership with RWTH Aachen University and the universities of Bonn, Braunschweig, Duisburg-Essen and Münster, HdT maintains close contacts with companies and research institutes, and is therefore a forum for the exchange of knowledge and experience.

EEHE Germany Highlights 2016

by: Ahad Ahmed Buksh

In the second week of June, key players of the automotive industry got together in Wiesloch, Germany to discuss the future electrical and electronic systems in Hybrid and Electrical Vehicles. The conference known as Electric and Electronic Systems in Hybrid and Electrical Vehicles and Electrical Energy Management (EEHE) or EEHE for short, featured a broad spectrum of participants ranged from Directors, Managers, and Engineers to Technical Specialists from companies like Daimler, Volvo, BMW, Ford, Bosch, Continental, Denso, Valeo, etc.

Hybrid/Electric vehicle market really growing

The market for HEVs and EVs is finally showing signs of real growth and many vehicle manufacturers stressed their needs for increased share of hybrid and electric vehicles in fleet management, mainly as a result of emission legislation.

Daimler, for instance, is expecting to grow its fleet of electrified vehicles (HEV/EVs) by 70% in 2016 to more than 60,000 this year. The company also showcased a smartphone application for HEV/EVs that shows data on charging profile, nearest charging stations and in future, and eventually to turn on the heater before driving.

For its part Volvo has kept its focus on the development of high voltage systems. The company demonstrated a strong commitment to electrification with its new T8 twin engine. Volvo is targeting 10% electrified share of its fleet offering by 2020 and expects to have a fully electric car commercially available by 2019.

48 V, a cost effective solution

Players like Valeo and FEV demonstrated a modular approach for electric architectures. Both suppliers stressed the need for 48 V systems to achieve the required CO2 emission targets.

Valeo suggested a dual-board net approach where there will be two sources, namely a 12 V lead acid battery along with a 48 V lithium-ion battery pack. The 12 V battery would supply power to low voltage control systems like head unit or airbag ECU, whereas the 48 V source would be dedicated to high current operations such as energy recuperation, boosting and active suspension. Valeo expects to supply 48 V systems to more than twenty different car manufacturers in the next three years, although this sounds very optimistic.

ECU consolidation in the automotive sector

As the industry moves towards the autonomous cars, major Tier 1s are focusing on optimizing the power consumption of future cars.

Continental demonstrated how adding new electrical components for different levels of automation adds to CO2 emissions. The company showed that in order to reach the L2 (partial automation) level, CO2 emissions increase by as much as 4.2 g/km, while attaining the L5 (high automation) level implies further detrimental emissions behavior to the tune of +6.7 g/km. This counterproductive surge in emissions demands efforts on architectural optimization, and one way is through the integration of electronic control units (ECUs). Today, a premium car exceeds 70 ECUs—one per application. While more functions will emerge, in future Continental sees multiple functions implemented in a single ECU. Continental demonstrated its own “evolution” and “revolution” version with new concepts for electric and electronic architectures.

Specifically, for hybrid/electric vehicles Continental demonstrated a prototype known as Bidirectional Charge and Traction System (BCTS). There are two significant features here, firstly the use of advanced electronics components based on SiC and second, multi-functional operation:

  • DC/AC conversion for the motor
  • DC/DC voltage conversion
  • AC/DC and DC/DC conversion for the battery

Today, the above operations are performed by individual ECUs but this multi-function system further validates the need to consolidate within ECUs. This not only saves power but reduces the cost and weight of modules. Another interesting aspect of the BCTS was that it used SiC MOSFETs and diodes as components. Even though BCTS is a prototype, the fact that Continental is testing its systems with SiC components goes to show that SiC may well just be the future technology for high voltage applications.


EEHE provided an opportunity for the major industry players to showcase their latest work and thinking. From the presentations and discussions it was evident that each automotive supplier is working hard to find new ways to meet impending new stringent CO2 targets with electrification as the main strategy.

Ahad Ahmed Buksh
Analyst Automotive Semiconductors
IHS Technology
Friedenheimer Brücke 29, Munich 80639
Phone: +49 8989526 9015

EEHE – Electric & Electronic Systems in Hybrid and Electric Vehicles and Electrical Energy Management – International Conference in Wiesloch (near Heidelberg) on 8-9 June 2016 – Simultaneous Translation provided!

Ever stricter emissions requirements in the automotive sector are an imperative for OEMs to reassess energy saving potentials and to search for smart solutions. Besides weight reduction, powertrain electrification plays a significant role in meeting objectives. The focus is still on 48V on-board power supply and energy management. Strictly speaking, every modern passenger car in Germany can already today be considered an electric vehicle because there are hundreds of electric loads and electronic control units in all of them. In addition, a wide variety of electric and hybrid vehicles with an electric system as their main source of propulsion is available on the market.

OEMs, suppliers and research institutes, now as before, are active in furthering new mobility concepts which make cars fit for the future. The components required for the powertrains to be used in 2020 are already being developed today. Numerous OEMs and suppliers are currently finding their positions in this exciting market. To get into pole position they require expertise and knowledge in areas such as power electronics, powertrains, electric motors, battery engineering and energy efficiency. Software specialists and their expertise are needed to bring together geo-data and driving profiles so as to tackle the issues from yet another angle.

With EEHE, the outstanding conference on electric and electronic systems in hybrid and electric vehicles and electrical energy management, Haus der Technik provides ample opportunity for networking among developers, users and scientists. Important players of the industry will come together at this international conference to explore ideas and exchange knowledge. From more than seventy submissions a particularly attractive programme has been put together. Conference participants appreciate the space for exchanging ideas and meeting people.

Away from the lectures there will be an exhibition. The conference participants will see electric and hybrid vehicles as well as test vehicles displayed by prestigious OEMs and will also be able to drive some of them.

Simultaneous translation will be provided.

Please get in touch with Haus der Technik for further information and details of the conference programme.

Tel: 0049-201-1803-249, email:, internet:

On Haus der Technik

Haus der Technik HdT serves as a platform for the transfer of knowledge and continuous professional development at the highest level. With more than 80 years of experience as an independent institute providing continuing education for specialists and managerial staff, HdT offers technical seminars, symposiums and in-house workshops to promote innovation and to provide for the transfer of know-how and expertise. The original idea of the HdT founding fathers is still alive: we wish to support companies to be successful in a competitive environment by offering services to knowledge workers. HdT brings together academia and industry. HdT partners with RWTH Aachen University and the Universities of Bonn, Braunschweig, Duisburg-Essen and Münster and at the same time maintains close contacts with companies and research institutes which makes HdT a forum for the exchange of knowledge and experience.

Contact and further information:
Bernd Hömberg
Haus der Technik e.V.
Hollestraße 1
45127 Essen
Tel.: +49 (0)201/1803-249
Fax: +49 (0)201/1803-269

8. Internationale Fachtagung
Kraftwerk Batterie 2016
am 26. – 27.04.2016 in Münster

Confirmation to the authors: January 15th, 2016
Deadline for the final papers: April, 6th, 2016

The Call for Papers is issued and willb e closed on 17th October 2014. Abstracts for the international conference on Electrics/Electronics in Hybrid and Electric Vehicles and Electrical Energy Management are welcome

The topics are:

  • Components, systems and architectures and design tools for Micro up to Full Hybrid, Plug-in-Hybrid and Electric Vehicles
  • Electrified powertrain systems, semiconductors for Hybrid and Electric Vehicle applications
  • 12/48V power supply system architectures and 48V components
  • Multiple voltage power supply (12V/24V/48V/HV)
  • Electrical energy management
  • Battery management & low voltage accumulators
  • Electric charging
  • Power electronics
  • Special applications for heavy duty vehicles
  • Development tools and methods
  • Power supply systems for highly automated or autonomous drive

Every contribution is scheduled with 20 minutes for the presentation and 10 minutes for discussion. The conference language is German or English, with simultaneous translation.

Use the “Call for Papers” online form to send your abstracts and additional files in a most convenient way.

Ottmar Sirch und Carsten Hoff with co-operation of 106 co-authors 2014, 502 pages., 376 pictures, 34 charts, 
ISBN: 978-3-8169-3264-2


Hybrid, Plug-In Hybrid and Electric Vehicles are entering the worldwide automotive market and the expectations are that by the middle of this decade there will be a wide range of established OEMs as well as newcomers offering these kinds of vehicles. Forecasts from several market research institutes project a significant increase of annual growth in volumes and revenues. According to ZSW (Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden- Württemberg), the number of registered electric vehicles worldwide has increased at an annual rate of more than 100% over the last three years. At the beginning of 2012, nearly 100,000 of the cars were on the roads worldwide. This sum rose a year later to a total of 200,000, and then again to 405,000 units earlier this year. ZSW projects that, if growth increases at the same rate, there will be more than 1 million electric vehicles on the road by the beginning of 2016. This tally does not include motorcycles, trucks, buses and the now more than 6 million conventional full-hybrid vehicles. The US, Japan and China are leading the market, according to the analysis, followed by France, Holland, Norway and Germany. Japanese and US automotive groups are the leading providers, assisted by strong market incentive programs in their countries. Nissan is the top-seller, followed by GM/Opel and Toyota; Tesla is accelerating rapidly. The batteries for the xEVs come mainly from Japan and South Korea, ZSW noted [1].

After a period of several years which was dominated by Toyota´s hybrids a lot of major players launched their xEVs onto the market and announced strategic approaches to cover a wide spectrum of electric vehicles and to meet the requirements for the next generation products in terms of technical characteristics, costs, production and aftersales. Experts for all product areas – e.g. motors, power electronics and energy storages – have been employed during the last years either in the automotive industry as well as other related branches and are working intensively together to provide appropriate concepts. Analyzing different OEMs we see different approaches for the challenging xEV market: The Volkswagen Group’s MQB modular platform is one of the four main modular toolkits (modulare Baukästen) of the Group: the MQB (transverse), the MLB (longitudinal), the MSB (standard drive), and the NSF (new small family). The platforms standardize many vehicle component parameters across brands and vehicle classes, while at the same time offering access to new technologies, such as alternative drive systems. The new Mark 7 Golf, which is MQB-based, offers gasoline, diesel, natural gas, plug-in hybrid (the GTE), and battery-electric (the e-Golf) versions, all of which can be manufactured bumper-to-bumper on the same assembly line. The MQB spans the A0 to C segment [2].

The Ford Motor Company, in conjunction with GE, will supply electric vehicle charging stations at Ford facilities nationwide, beginning with facilities in and around its headquarters in Detroit. Ford will begin installing the GE WattStation Level 2 charging stations across its North American campuses, developing a workplace charging network at nearly every Ford facility in the United States and Canada using the new charging network, Ford employees commuting to their jobs from up to 21 miles away in plug-in hybrid vehicles – Fusion Energi and C-MAX Energi – may be able to drive entirely on electric power to and from work. Fusion Energi and C-Max Energi have EPA-estimated MPG ratings of 44 mpg US city, 41 highway and 43 combined and have an EPA-estimated range of 21 miles (34 km) electric. Drivers of the electric-only Focus Electric, which has an EPA-estimated range of 76 miles (122 km) on a full charge, will have even more gas-free commuting potential. The Ford charging service will be free to employees for the first four hours of charging each day. By offering free charging, Ford is trying to encourage charging station sharing, enabling twice as many employees to charge at work for free. Ford is also asking employees to use the MyFord Mobile smartphone app to collect driving and charging information to help the company understand driving patterns and potentially influence future product design.

Ford estimates it will cost about 50 cents to fully charge each vehicle. Ford’s WattStation charging station units will be connected together. As a result, the company will be able to gather comprehensive information on electrified vehicle use, such as the number of hours vehicles are charging and the amount of carbon dioxide reduced. It can then use actual station data to plan for additional station installations. Ford plans to install electric vehicle charging stations at more than 60 of its offices, product development campuses and manufacturing facilities. The installation will begin at Ford’s southeast Michigan facilities and roll out across other facilities throughout 2014.

Beside these activities the efforts to improve fuel consumption and CO2 emissions of conventional vehicles with internal combustion engines are an ongoing process. New approaches for energy management, highly sophisticated operating strategies and new technologies are being researched and developed and will be applied soon. These technologies are combined to new powerful systems which are capable of fulfilling the CO2 targets as well as the requirements for new features. Alternatively to today´s established 12 Volt, 48 Volt is establishing itself as a new vehicle power supply voltage, which increases the capability of the conventional vehicles with internal combustion engines in terms of electric power for new features, recuperation, fuel consumption and CO2 emissions to improve its position in the competition with xEVs. The market potential for a 48 V power supply has been evaluated by a number of parties including institutes, OEMs and suppliers. The results show significantly rising volumes in the second half of this decade.

Forecasts in analysts’ figures show a significant market share for 48 Volt beyond 2020. Additionally, for 2025 market research predicts that more than 30% of all vehicles will have an electrified powertrain.

The book in hand was created for the 3rd conference “Electric & Electronic Systems in Hybrid and Electric Vehicles and Electrical Energy Management” organized by Haus der Technik e.V. Essen May 6th and 7th, 2014, in Bamberg. Subjects and articles about the overall system of electrics/electronics of hybrid and electric vehicles and concepts of electrical energy management will be presented and discussed in detail. Solutions for hybrid, plug-in hybrid and electric vehicles and E/E architectures, charging systems, power electronics, and low voltage accumulators will be covered.

We want to thank all the authors and speakers whose interesting technical contributions support the edition of this book. Furthermore, we thank Mr. Bernd Hömberg and his staff from Haus der Technik e.V. in Essen for planning and organizing the event, Mrs. Anita Koranyi and Mr. Matthias Wippler from expert-Verlag in Renningen for publishing the book and Mrs. Dr. Vera Lauer, Mr. Dirk Balzer, Mr. Prof. Dr. Ludwig Brabetz, Mr. Prof. Dr. Stephan Frei, Mr. Friedrich Graf, Mr. Prof. Dr. Hans-Georg Herzog, Mr. Dr. Jan Lichtermann, Mr. Dr. Marc Nalbach, Mr. Dr. Dieter Polenov, Mr. Dr. Hartmut Pröbstle, Mr. Dr. Tomas Reiter, Mr. Prof. Dr. Dirk-Uwe Sauer, Mr. Peter Schmitz and Mr. Richard Schöttle for their support and engagement in the program committee.

Bamberg, May 2014

Ottmar Sirch Dr. Carsten Hoff

Click here for more information