Research

Charging solutions for electromobility and corresponding charging stations are currently still characterized by excessive costs and insufficient integrability into the dynamically changing energy system. The aim of the joint project is therefore interoperable and grid-supportive system integration and significant cost reduction while at the same time improving reliability and ensuring all current and future relevant functionalities, future viability, safety (especially cyber security), efficiency and resource-saving long lifetimes.
>> more

The proportion of electric commercial vehicles, for example, almost doubled in 2018 compared to 2017, but is largely attributable to the class below 3.5 tons. The 3.5 to 7-ton class is currently still based almost exclusively on combustion engines. One of the main reasons for this is the lack of technically suitable vehicles on offer, particularly from German car manufacturers. The technical hurdles are the high requirement profiles specific to commercial vehicles, the comparatively low quantities and the associated high development costs with the problem of timely market launch. The approach in this research project is to enable the use of existing electric motors, e.g. from the passenger car sector, for light trucks.
>> more

The project aims to develop a diversified and intelligent charging infrastructure system for electric vehicles to ensure the operational charging of a vehicle fleet characterized by a very high density of the latest generation of electric vehicles. This allows a mobility situation to be depicted that will exist in the year 2035. Interactions between a diversified charging infrastructure, advanced electric vehicles and intelligent charging management can thus be recorded, analyzed and optimized in practice at an early stage.
" more

Due to limited energy resources and the global growth in private transportation, new energy-efficient and economical drive concepts are needed. Electric drives currently offer precisely these technical properties due to their high efficiency. In order to make use of the advantages, the electric motor must be optimally designed for its application. Today's electric motors for traction drives must be optimized to their performance and material limits and meet a wide range of requirements.

The aim of the NeWwire research project is to develop and design a new type of winding process for the automated production of high-performance electric motors for automotive applications.
" more

The limited range of electric vehicles and the considerable manufacturing costs of batteries require efficient management of the energy stored in the vehicle.
As part of the joint project VerfaS, process optimization to increase the energy efficiency of electric drives, methods are being developed that contribute to increasing the efficiency of the electric drivetrain.
" more

The aim of the cooperation project "Research for predictive diagnostics of electric machines in vehicle drives" is to research a scientific methodological basis for the early detection of fault modes of the electric machine in the overall vehicle system.
" more

The research project "Development and optimization of vehicle electrical system architectures with consideration of high-power consumers" is being carried out in the focus area of energy vehicle electrical systems.
" more

The thermal behavior of electrical vehicle electrical systems is being investigated as part of the project. To this end, a new measurement method is being developed that makes it possible to determine the real conductor and insulation temperatures of the cables in the electrical vehicle electrical system.
" more

Contact faults in DC circuits can cause the affected components (cables, plugs, etc.) or their surroundings to leave the permitted operating range (e.g. overheating) and even cause arcing, which can result in functional failure and extensive damage to the contact point. Depending on the degree of fault, this can lead to the development of a smouldering fire or even an open fire.
" more

As part of the project, a test bench for vehicle electrical systems is being set up that allows the electrical energy and signal distribution to be investigated. Within the test bench, all actuators and sensors are controlled outside their original environment by a real-time computer.
" more

The increasing market penetration of electromobility and the resulting growth in unit numbers mean that the material costs for central components in electric machines, such as magnets, and the energy efficiency of electric machines are becoming critical both economically and ecologically, and the ability to optimize these is proving to be highly relevant to competition.

The aim of the KITE joint project is to develop highly efficient motor topologies for electric drive machines.
>> more

The aim of the eBoosT joint project is to satisfy the sometimes very divergent customer requirements in the truck sector with a competitive electric drive concept. A highly integrated, highly efficient drive unit designed for continuous operation is optimally combined with a second boost drive unit designed for peak loads.
>> more

An important aspect for the use of electrically conductive modified plastics is their contacting. In addition to processes that subsequently create a contact (e.g. clamping or melting contacts), there are also numerous process-integrated methods. Injection molding is certainly worth mentioning here, but integration via other common primary forming, forming and joining processes is also conceivable.

The aim of the project is to develop a model to describe the electrical contact resistance at the interface between electrically conductive modified plastics and metallic contacts, depending on the parameters of the interface transition and the plastic edge layers, to quantify this and to validate it in the context of realistic production processes.
>> more

Modern test benches for experimental validation provide extremely large, mostly time-based and usually heterogeneous amounts of data, the processing and, above all, the evaluation of which is hardly possible with conventional knowledge-based methods or, due to the size and complexity, not possible at all. In particular, unknown correlations and error models elude analysis. For the use of AI methods, e.g. from the field of deep learning, this offers an extremely interesting, still little researched and, above all, future-relevant application.
" more

The aim of the joint project is to design and demonstrate new wiring system concepts for future automated vehicles that ensure the reliability of power and signal distribution.
The concept envisages predictive power management for the safe power supply, which uses the new autonomous driving functions to predict the expected power requirements. In this way, safety-critical conditions are anticipated and compensated for by means of prematurely initiated measures.
" more

Until now, standardized magnet geometries have generally been used in the development of new electric drives. The magnets are arranged in specific, familiar patterns such as a stacked structure or a magnet V arrangement. The design is therefore based on intuitive, experience-based patterns. Complex iteration loops are necessary in order to meet all requirements in terms of performance, efficiency, acoustics and mechanical strength, whereby the magnet material is not utilized homogeneously in the arrangements known to date.
" more

Semi-autonomous electric vehicles for environmentally and tourist-friendly mobility

Driving around the park in an electric vehicle, being taken to the desired destination semi-autonomously and receiving up-to-date information at the same time: This is the aim of a project at the University of Kassel funded by the Federal Ministry of Education and Research.
" more

Today, the architecture of vehicle electrical systems is largely an evolutionary process in which new or further developed vehicle electrical/electronic systems are integrated into the design concept, manufacturing concept and logistics concept of existing electrical system architectures from predecessor vehicles. Today's boundary conditions for the development of vehicle electrical system architectures require new methods for the development of vehicle electrical system architectures that consider the vehicle electrical system and electrics/electronics as a single unit and thus open the way to a global optimum of the electrical architecture in contrast to today's methods.
" more