eMobility Systems

The alternative drive of your sector

We are at your side for everything relating to alternative drives. We will accelerate technological progress for you throughout the entire development process of your e-drive development, from design to integration. Your individual needs are our key focus. To this end, we offer you scalable project teams providing a winning combination of passion and customer focus, and – together with our colleagues in “Testing Solutions” – can provide our own infrastructure for the testing, virtual verification and certification of your solution.

As diverse as our teams: Automotive, Avionic, Rail and Sea

We have a clear vision for the development of electric powertrains: dynamic, quiet and with zero emissions. To achieve this, we provide you with excellence from a single source. Our experts have successfully completed hundreds of projects over the last decade. We can now make this know-how available to you. From development to validation, we offer you scalable project teams that profitably combine passion with customer focus. In doing so, we make use of multi-departmental functions to optimize costs. Our own testing infrastructures also ensure reliable validation of our development and application.

Overview of our eMobility Systems subject areas:

Cells

Benefit from our many years of experience in the series development of large-format cells as the basis for future cell and energy storage system development.

Cell analysis, characterization and testing
Development and supplier management from advance development to series production
Technical consulting
Verification, testing and validation
Integration

The cell as the foundation of the system: competence in electrical engineering and chemistry.

Energy storage systems and batteries: storage system architecture and system design

From the initial idea to series production: Benefit from our wide range of expertise in the creation of energy storage system concepts and their development as the basis for customer-specific energy storage solutions.

Requirement-based development
Modeling of energy behavior
Function development and calibration as well as commissioning on HiL, the battery system or the vehicle
Development control, technical project management and supplier management, safety system design according to ISO 26262
Prototypes and small-series production
Predictive maintenance and HMI

From a single source: your tailor-made energy storage system.

Power electronics

Converters / Inverters / Battery Management

To ensure your project success: our team has a system perspective as the basis for holistic development.

Components: converter / inverter, battery manager and on-board charger
Services:
- Systems and requirements engineering
- Hardware development: circuits, routing and simulation
- Software development: application software and control
- Prototype development
- Virtual and physical validation
- Integration and application
- Test management and test analytics
Standards and guidelines:
- ISO 9001
- ISO 17025
- ISO 26262
- Up to A-Spice Level2

Reliability through experience: control systems for your electric powertrain.

Converters / inverters

Requirement management ASPICE L2
Hardware concept creation for circuit diagram and PCB
Circuit simulation, layout / routing
Prototypes
Control algorithms and programming
Test coordination and test analytics

Battery management

Battery Management System (BMS) function development
Functionality testing, incl. finite state machine validation
Thermal management
Functionality and environmental testing on the battery system on the component test stand
BMS testing in the complete vehicle
Functionality testing in the SiL system
Hardware manipulation for error activation

Low-Voltage Technology 48 V / 60 V / LV and On-Board Power System

Networking with energy, not only in the high-voltage range.

Starter / generator / belt generator
Creation of test specifications on the system/component level
On-board power system stability in multi-voltage systems
On-board power system simulation and component simulation

Energy management

Function development of the energy management (EM) system and EM diagnosis
Quiescent current measurements / analyses
Validation and integration
Diagnosis

Energy that is always managed.

Electric Machine Design and Validation

Our expertise in functional mechanics design for electromagnetic design and simulation.

Functional mechanics design for the electric machine and inverter
Electromagnetic and thermal design and optimization of electric machines using FEM software
Calculation and optimization of electric machines, e.g. efficiency and loss maps, limit characteristics
Automated and multi-criteria optimization using brute force or particle swarm
Thermal management and cooling
Validation on our own test stands

From the design to the validation of your electric machine.

Transmission Development for Housings / Gear Shafts / Parking Lock

- Compound transmission for electric powertrains
- Concept design, calculation and simulation
- Lubrication, cooling and ventilation systems
- Patented Bertrandt transmission parking lock test stand

For your project success: our team with its overall view of the development of compound transmissions for electric powertrains.

Charging

Rely on our interdisciplinary team of experts with competence in all aspects of energy and charging management.

Component development:
On-board battery management system, charging stations, integration of the charger into the electric vehicle, etc.
Validation of the charging system:
Smart charging according to ISO 15118, validation of interoperability, function tests, etc.
Compatibility:
Validation of the compatibility between the vehicle and the charging system, analysis of charging interruptions
Energy market:
Energy management, energy sales
Charging solutions for fleets
Grid solutions

We take a holistic view of charging.

Engineering for Grid Operators, Feed-In Suppliers and Customers

Competence in construction: for your success in all areas of energy management.

Support for power grid calculation and application for connection to the power grid
Equipment design
Independent review and assessment of grid compatibility tests
Grid integration of vehicle fleets and charging management
Optimization of energy consumption
Development of and support for company-wide energy management concepts
Consulting service for strategic issues in the context of electric mobility and charging
Calculation of degree of protection

Expertise in electrical engineering at your service.

Mobility and Energy

More than mobility.

Ships and Yachting
- Alternative drive systems
Rail
- Railway lines: signal box / points / overhead power lines
- Points and point motors, sensor systems
- EMUs and railcars / rolling stock
Avionics
Drives / Servomotors
- Actuators
- Converters
- Control systems / communication systems
Stationary / Storage Systems
- Concept and advance development
- Design, development and validation (household and grid scale)
- Converters for industrial plant and decentralized PV energy supply
- Line filter equipment
- Battery/grid management