More than 6000 employees working in 27 research institutes and facilities


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More than 6000 employees working in 27 research institutes and facilities

  • More than 6000 employees working in 27 research institutes and facilities

  • Research Programs:

  • Aeronautics

  • Space

  • Transport

  • Energy



Motivation



Resources of water and oil run short

  • Resources of water and oil run short

  • Climate change can not be ignored

  • Increasing population asks for mobility





Law

  • Law

    • StVZO
    • EG/EWG
    • ECE
    • Global (e.g. FMVSS, IIHS)
  • Customer and Market

    • Improved modularization
    • Scalable vehicle and propulsion system
  • CO2-Restrictions

    • Alternative Propulsion Systems (e.g. BEV, FC)






Alternative propulsion system (e.g. Battery) integrated into the vehicle’s floor

  • Alternative propulsion system (e.g. Battery) integrated into the vehicle’s floor

  • Continuous side members

  • Continuous rib structure

  • Crash-Elements between side members and rocker



Basic idea: rigid B-pillar with flexural joint in the roof pillar and high performance energy absorption below the driver’s seat

  • Basic idea: rigid B-pillar with flexural joint in the roof pillar and high performance energy absorption below the driver’s seat

  • Minimum deformation in the rib-structure with maximum energy absorption in the crash elements





Simulation and Validation of the B-Rip-Design

  • Simulation and Validation of the B-Rip-Design



Rigid structure in the middle of the vehicle

  • Rigid structure in the middle of the vehicle

  • Energy absorption between rocker and side member











Motivation

  • Motivation

  • Lightweight design strategies

  • General Requirements

  • Two different approaches

    • Rib and Space-Frame
    • Hybrid structures
  • Summary and Conclusion



















Two different approaches for lightweight and safe vehicle structures for small/medium and large scale production

  • Two different approaches for lightweight and safe vehicle structures for small/medium and large scale production

  • DLR Rib and Space-Frame with high intrusion resistance of the B-Rip and Crash compartment

  • An underbody structure composed of a ring-like filled structure results in a very high intrusion resistance during pole crash. A large portion of the underbody could therefore be used for the storage of critical components like Li-Ion batteries

  • A more detailed car body structure is needed to make accurate weight predictions

  • Optimization of the structure by decreasing intrusion resistance in favor of reduced weight seems reasonable





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