11 - 13 February, 2020
| Titanic Chaussee Berlin, Berlin, Germany
Workshop Day
Workshop A
8:00 am - 10:30 am SIMULATION APPROACHES FOR THERMAL AND ENERGY MANAGEMENT Dr. Jean-Michel Fiard - Expert Thermal Physics and Innovation, RenaultSimulation is a great tool to save costs in vehicle development. This applies especially to the thermal management
system of xEV where numerous options are under study today. In this workshop we go into details
of the multi-physics simulation approach and review some applications and case studies. We discuss:
• Objectives and the limits of such thermal and
energetic synthesis models that allows to simulate
customers cycles
• Methods including physical system modelling, vehicle
model assembly, control and strategies implementation
without forgetting correlation with measures
• Concrete application to PV or small LCV for battery
and powertrain thermal management & cabin comfort
Workshop G
8:00 am - 10:30 am HOW MANY GEARS FOR ELECTRIC DRIVELINES IN CARS Prof. Dr. Bernd-Robert Höhn - Founder, ZG Zahnräder und GetriebeTo define the necessary ratio for ic-engines 3 ratios are defined:
Starting-ratio for a given torque at the wheels from an ic-engine characterized with torque and power Highspeed-
ratio for the recommended or given highspeed of a car with the speed of the ic-engine for maximum
power. Overdrive-ratio for reduced fuel consumption by a given be-map of the ic-engine Why this procedure
are not used for electric drivelines in cars? The wellknown procedure should be used for an electric engine
with their efficiency map. The necessary ratios and the spread of such a transmission will be shown in the
presentation. For a given example of a car and an electric-engine with their efficiency map will be explained
how many gears are needed. Furthermore an example of such a gear will be shown.
10:30 am - 11:00 am
Morning coffee break
Workshop B
11:00 am - 1:30 pm BATTERY THERMAL MANAGEMENT IN THE AGE OF (ULTRA) FAST CHARGING Dr. Volker Null - Technology Manager Thermal Fluids, Shell Global Solutions (Deutschland) GmbHProgress in battery technology and the charging process plays
a crucial role in mass adoption of electric vehicles. Thermal management
of the battery is a huge factor in the aspects of life,
safety, and efficiency (influencing the range) and optimizing it
can have a big impact on the above. Modeling and simulation
are very powerful tools to optimize performance and save costs.
In this workshop the moderator will describe thermal modelling
approach for single cell and modules. This will include CFD fluid
dynamic simulations utilizing with different fluid types, indirect
and direct cooling designs at single cell and module level, and
cells with different form factor.
• Importance of detailed description of model in accurately
predicting temperature of various battery cells and modules
during different charge rates
• And module design and fluid parameters
• Thermal fluid flow in battery module and modelling distribution
of fluid flow and of temperature gradients
Workshop E
11:00 am - 1:30 pm ESTABLISHING A TOOL INDEPENDENT MULTI OBJECTIVE OPTIMIZATION WORKFLOW FOR E-MOTOR DEVELOPMENT Gereon Pusch - Department Manager E-Motor Design & Test, Great Wall MotorTim Schwartz - Junior CAE, Great Wall Motor Austria R&D GmbH
The trend to highly integrated products in automotive industry is
additionally increasing the complexity of E-Drives. Inverter, E-Motor
and Gearbox are melting together, and physics are interacting. It’s
not possible anymore to optimize a single component on its own,
in fact there is a need for holistic approaches and system development.
This workshop will show the current status of Great Wall Motor
Austria R&D to handle multi objective optimizations in E-Motor
Development. The target is the establishment of a tool independent
platform for simulation workflows and loops. A special focus will
be on the discussion of:
• A special focus will be on the discussion of:
• Simulation Software Interfaces
• Simulation Software version and release management
• Material data management
• Discussion and experience exchange on simulation tool
coupling: Do you prefer a versatile coupling platform or a
turnkey solution from one software supplier? What’s your
experience so far, pros and cons?
Workshop H
11:00 am - 1:30 pm OPTIMIZING ENERGY CONSUMPTION AND NOISE PERFORMANCE IN BY-WIRE-ACTUATORS FOR HEVS Rakib Islam - Senior Motor Engineering Specialist, Dura Automotive SystemsHybrid architectures with disconnecting clutch
(dry or wet type)
• Enabler for manual transmission hybridization
• Clutch actuators typologies
• Clutch actuator concepts – Performance to efficiency
• Improving noise performance
1:30 pm - 2:30 pm
Networking luncheon
Workshop C
2:30 pm - 5:00 pm THE FUTURE OF CLIMATE CONTROL AND CABIN COMFORT Prof. Reinhard Radermacher - Director of the Center for Environmental Energy Engineering (CEEE), University of MarylandWith the introduction of the electric motor in the new generation
vehicles (EV or HEV), also comes a change in the requirements for
the cabin and passenger comfort. The original strategy of simply
recovering heat from the ICE becomes obsolete and new approaches
have to be developed. In this workshop, you will hear about
the latest trends in cabin comfort in EV and HEV and discuss current
and future developments including:
• The requirements for climate control in EV
• New solutions such as heat conductive materials and
localized heating
• The future of air-conditioning, innovations in heat pumps
• Energy efficiency optimization
Prof. Reinhard Radermacher
Director of the Center for Environmental Energy Engineering (CEEE)University of Maryland
Workshop F
2:30 pm - 5:00 pm EV AND HEV MOTORS WITH LOW RARE EARTH MATERIAL Dr. Sid Ali Randi - Specialist Electric Drives – R&D Electromagnetic Simulation Engineer, Renault Group, FranceThis workshop’s primary goal is to understand how automakers
are considering alternatives for e-motors.
In this workshop you will be able to:
• Current examples on EV and HEV motors with low rare
earth material
• The recent advances achieved to provide competitive
operational features
• Future challenges and opportunities
Dr. Sid Ali Randi
Specialist Electric Drives – R&D Electromagnetic Simulation EngineerRenault Group, France
Workshop I
2:30 pm - 5:00 pm TESTING, THERMAL ANALYSIS AND FRICTION OPTIMIZATION OF ANGULAR CONTACT BALL BEARING FOR EV APPLICATION Marc Paquien - Energetic Performance Leader Automotive Original Equipment, NTN-SNR RoulementsNTN-SNR tested different bearing design on high speed test
bench, with friction and temperature measurements. A simple
thermal model enabled to explain heat flow through rings, oil,
housing. This study ended in bearing design and lubrication
optimization.
• New friction challenges with high-speed
• Strategies to reduce the losses: materials vs. mechanics
• Preserving the lifetime of bearings
