Motion sequence criteria for favorable occupant kinematics in rear impacts

Figures & data

Figure 1. (top) favorable motion sequence into the lap-shoulder belts, (bottom) unfavorable motion sequence with submarining the lap belt (modified from Adomeit and Heger 1975).

Figure 2. Motion sequence criteria for occupant restraint in frontal impacts (modified and updated from Adomeit and Heger 1975 and Adomeit 1977).

Figure 3. (left) favorable occupant kinematics in H41148, (right) unfavorable kinematics in SAFE test.

Figure 4. (top) favorable motion sequence into the seatback and (bottom) unfavorable motion sequence with ramping up the seatback.

Figure 5. Energy transfer requirements for a seat with delta V and occupant mass.

Figure 6. Favorable kinematics with an anti-ramping guide.

Adomeit D, Heger A. 1975. Motion Sequence criteria and design proposals for restraint devices in order to avoid unfavourable biomechanic conditions and submarining. SAE 751146. 19^th Stapp Car Crash Conference, Society of Automotive Engineers, Warrendale, PA.

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