Energy Absorbing Body Structures

One of the first considerations in designing a safe vehicle is the body and chassis design. It is vital to protect the passenger in the event of an impact. This is accomplished by maintaining the integrity of the "passenger cell" during an accident.

The main consideration during an impact is to avoid transferring crash energy to the vehicle occupants. By adding energy absorbing crash elements to the vehicle, this energy transfer is reduced considerably.

Passenger Safety Cell E60 

Fig 1: Identifying Passenger Safety Cell E60 And Energy Absorbing Body Structures System

Courtesy of BMW OF NORTH AMERICA, INC.

In addition to having energy absorbing structures in the front and rear of the vehicle, there are also side impact protection structures in the doors. These structures not only help prevent impact intrusion into the safety cell, but also allow the door to be opened after most impacts.

Engine Support Arm showing "Crumple Zone" 

Fig 2: Identifying Engine Support Arm System (1 Of 2)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 3: Identifying Engine Support Arm System (2 Of 2)

Courtesy of BMW OF NORTH AMERICA, INC.