Mobile hydraulic Systems
In the research area „Mobile Hydraulic Systems“, the focus is on the development of suitable drive structures, control and regulation strategies as well as their implementation and testing for mobile machines. Boundary conditions such as minimal sensor technology, cost-effective solutions and high energy efficiency play just as much a role as robustness, availability and functional safety. The modelling of the drive system is the basis of the analysis and development activities in many projects and is still consistently used for control, control tests using software-in-the-loop and hardware-in-the-loop as well as for error detection.
Selected projects
Objects of investigation
- drive systems for mobile machines (traction drive, steering, working hydraulics)
- alternative drive structures such as separate metering systems or displacement controls
Main research areas / questions
- development and design of drive structures
- analysis and optimisation of energy efficiency – energy management with and without hybrid concepts
- control development, controller design and software development for operator-guided and automated functions
- condition monitoring, fault detection and diagnosis
- method development for the engineering
Methods
- V-model and design development process according to VDI 2221
- cross-domain modeling with network-based models (system simulation)
- model / software / hardware-in-the-loop
- metrological analysis and characterization of (sub-)systems
- risk assessment according to DIN EN ISO 12100
- safety analyses using a fault tree and corresponding standards
(ISO 13849, DIN EN 16590, ISO 26262)
Digitalisation and Automation
- Development of automated pattern classification for interpretable evaluation of machine data, please continue reading ...
- Service-mobile - Development of a knowledge-based assistance system for service and maintenance of mobile machinery in construction industry, please continue reading ...
- Building 4.0 - Efficiency and productivity through networking and
communication of mobile machines -
Smart loader - adaptive mobile machine control, please continue reading ...
Electro-hydraulic System Architectures
- System pressure level in mobile machinery - system characteristics and potentials, please continue reading ...
- Qualification of electrohydraulic drive systems for assisted/automated mobile machines and digitalized construction processes, please continue reading ...
- Decoupled actuator structures, please continue reading ...
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Control systems for mobile machinery utilizing separate metering, please continue reading ...
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Independent metering control systems, please continue reading ...
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Safety related development of an electro-hydraulic active steering system, please continue reading ...
- Agrothermy - Oscillating tool cutting edge for tractive force reduction,
please continue reading ... -
Hydraulic travel drives, please continue reading ...
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Elektrohydraulic systems for the working equipment of mobile machinery, please continue reading ...
Integration and Test of Fluid-Mechatronic Systems
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Integration and test of mechatronic systems, please continue reading ...
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Development of technologies for energy-saving drives of mobile machinery, please continue reading ...
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Real-time simulation for testing the function of drive and control systems, please continue reading ...
Methods
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thermal modeling, please continue reading ...
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Efficiency assessment through operation point distribution, please continue reading ...
- Adaptive model-based fault detection, please continue reading ...
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Safety of independent metering systems for mobile applications, please continue reading ...