SAE 2014 Electric Powertrain Technologies Symposium

Technical Session Schedule

Wednesday, November 19

SAE 2014 Electric Powertrain Technologies Symposium - Technical Program
(Session Code: EPTS1)


Time Paper No. Title
8:30 a.m. ORAL ONLY
Market Potential for Electrified Powertrains in Europe
- Push and pull factors influencing xEV penetration in Europe and other major regions

- OEM specific CO2 emission targets in Europe

- Forecast of approaches of major OEMs in Europe (technology penetration rates in Europe=

- Market outlook xEV volumes by region and global component markets (2020 / 2025)
Wolfgang Bernhart, Roland Berger Strategy Consultants
9:00 a.m. ORAL ONLY
Sensors in Electric Drives
Current and angle sensors considerably influence the performance of electric drives. The sensors need to be safe and have limitations like limited bandwidth and signal processing delay times. Depending on the operating point, however, these effects may be more or less severe and have different effects, like torque ripple or lower efficiency. The presentation shows requirements, the impact and compensation methods for sensors parameters.
Philip Brockerhoff, Infineon Technologies AG
9:30 a.m. ORAL ONLY
Examining ways to Maximizing Power Density in Electric Machines for Traction and Power Generation in Hybrid Electric Vehicles
In every electrification program, traction motor efficiency is paramount. Efficiency of electrical energy use is usually what is most discussed; however, there is another form of efficiency that is quite important: power density. This efficiency is carried out by maximizing performance and minimizing volume and weight.

There are many aspects that impact power density. This presentation will investigate what the main drivers of power density. Designers will learn how voltage and/or current, cooling, winding selection and rotor speed can all impact electric motor performance. If the vehicle designer understands how these relate to one another and the impact they have on electric motor/generator performance, one can optimize and select the rest of the components in the powertrain to maximize power densities to reduce costs.
Jay Schultz, Parker Hannifin Corp.
10:00 a.m. ORAL ONLY
Increasing Efficiency of Electric Vehicle Powertrain using IGBT inverters
With the rising cost of semiconductors and limited space for power inverters in electric and hybrid vehicle applications, the demand for efficient power electronics is increasing. Greater efficiency has a direct impact on the required size of both the surface area of the semiconductors and the cooling system. Power electronics efficiency also has a great impact on other powertrain components like the battery capacity further increasing the need for higher efficiency.

This presentation discusses the different solutions used today that allows improved IGBT switching losses and expresses the limitations of these solutions. The new Reflex Gate Driver Technology is presented with description on how it can significantly improve IGBT switching losses. Reflex gate driver technology allows up to twice as much output current from the same IGBT die surface area. Additional improvements are presented like the use of variable switching frequency and optimized control algorithms for better energy management.
Christian Pronovost, TM4 Inc.
10:30 a.m.
11:00 a.m. ORAL ONLY
EV Charging Technologies and Motorsport Applications
The presentation will provide background information and overview of EVSE. Further, descriptions of the technologies and application features in motorsports will be shown.
Klaus Rowecki, Schneider Electric; Claudia Brasse, Toyota Motorsport GmbH
11:30 a.m. ORAL ONLY
Presentation TBD
Paolo Mantelli, Oerlikon Graziano SpA
12:00 p.m. ORAL ONLY
Lightning Motorcycle - Design & Technology of the World's Fastest Electric Motorcycle
Richard Hatfield, Lightning Motors Corp.
12:30 p.m. ORAL ONLY
Networking Lunch with Exhibits
1:30 p.m. ORAL ONLY
Overview of Vehicle Package Space Trade-Offs and Interoperability Issues for Multiple Classes of Vehicles using WPT
Andrew Daga, Momentum Dynamics Corp.
2:00 p.m. ORAL ONLY
Requirements and Challenges to Power Supply Systems and Electrical Architectures – Today and Tomorrow
Peter Schmitz, Ford Forschungszentrum Aachen GmbH
2:30 p.m. ORAL ONLY
Integration of Inductive Charging Systems into Hybrid and Electric Vehicles
The presentation will give an overview about the current activities of the HELLA-VAHLE cooperation in the field of wireless power transfer. Our system comes with the charging control unit integrated within the primary side and also special focus will be on the interference with keyless entry systems of surrounding cars.
Carsten Kugeler, Hella KGaA Hueck & Co.
3:00 p.m. ORAL ONLY
360° of EV charging: technical approaches, challenges, influencing factors and future prospects
The success of electric mobility is not only determined by the performance of the vehicles. From a customer perspective, the certainty to always be able to recharge the battery (private or public) is important.

Solving the charging infrastructure issues turns out to be almost as challenging, since a vehicle is parked at very different locations during the course of a day and the still limited range requires more charging events.

Different technical environments and customer expectations require very different solutions – from a basic cable with limited power and functionality to a fast charger with permanent communication skills between vehicle and grid.

Based on our experience from multiple projects we will give an overview of the current situation in electric vehicle charging, describe the key challenges and provide insights for a successful way forward.
Michael Scholz, P3 Automotive GmbH
3:30 p.m.
4:00 p.m. ORAL ONLY
Porsche - Presentation on Panamera
4:30 p.m.
Future Diesel Powertrain Technologies to Support CO2 Glide Path
Competitive pressure and customer expectation is driving lower CO2 Emission over the last years and initiatives for future legislative emission targets reveal very challenging figures with the introduction of new homologation cycles. Powertrain and even whole vehicle development may be dominated by CO2 requirements and meeting legal emission requirements, while other vehicle attributes may be compromised to achieve these targets. This presentation discusses diesel and hybrid electric powertrain technology solution that support future CO2 reductions measures.
Serve Ploumen, Ford Research Centre Aachen
5:00 p.m. ORAL ONLY
Light Duty Alternative Vehicle Lifecycle Costs and Market Dynamics
Jacob Ward, Department of Energy
5:30 p.m. ORAL ONLY
Modelling the Future Market of Electrified Powertrains in Germany: TCO and Customer Utility
Looking at the future passenger car market and the competition of vehicle technologies and fuels to reach European corporate fleet CO2-targets, total costs of ownership (TCO) are certainly an important indicator for customer acceptance, especially in the case of BEVs and PHEVs. With Vector21 (Vehicles Technologies Scenario Model), DLR started in 2007 with agent-based vehicle choice modeling. We will compare TCO with a more recent, utility based approach and we will give insight to scenario results for the German market.
Stephan Schmid, DLR