Advanced Concepts With Tailor Rolled Products

 Lightweight parts with load and function-optimized material usage 

Implementation

 An increased number of thickness zones for an optimized TRB solution results in minimal lightweight cost 

Targets / Benefits

 Functional Improvement

CAE model information
 Re-engineered model
 Five passenger CUV ; model year 2010
 Updated material for the Door-Ring and Rear
Rails to state of the art
 Curb weight: 4,000 lbs
 Dimensions
– Length: 189”
– Width: 75”
– Height: 63”

 Less deformation concerning the B-Pillar
 Slightly lower SWR because of more deformation of the Roof Rail

 Independent thickness run without requiring a symmetry line
 More homogeneous distribution of the crash energy
 High material utilization
 Weight reduction up to 17 %

Potential of a TRB ® Rear Rail Design
 Simulation with generic vehicle
– FMVSS 301 Rear Crash
– Understructure deformation
– Plastic strain at Fuel Tank
– Door opening
– Stiffness comparison

 Harmonic load distribution due to transition zones
 Reduced production and assembly costs by part integration
 10 % weight reduction + 1 part integration with TRB ® I
 21 % weight reduction + 3 parts integration with TRB ® II