BODY STRUCTURE


  1. General


    1. The impact absorbing structure of the LX570 minimizes cabin deformation by effectively helping to absorb the impact energy in the event of a front, side or rear collision. This provides high-performance occupant protection.

  2. Impact Absorbing Structure for Front Collision


    1. High strength steel is used in the reinforcements located under the floor and on the rocker panels, and a structure that can effectively provide the axial-compression load to the frame is used. This is to absorb the collision energy efficiently and to disperse the load. As a result, cabin deformation will be minimized.


      1. A large front bumper reinforcement is used to efficiently dissipate the impact energy into the frame side rails.

      2. Crush boxes are provided at the front ends of the frame side rails. These crush boxes reduce the impact that acts on the side rails and minimize body deformation during a minor collision.

      3. In order to disperse the impact load which is caused by a frontal offset collision, the frame structure has been designed to minimize the frame buckling and transfer collision energy more linearly. In addition, high strength sheet steel is used in the reinforcements under the floor. As a result, a more efficient dispersal of the collision impact load has been made possible by controlling frame distortion mode through a combination of the body and frame during a major collision.

        A01W7IRC01
        *1 Front Bumper Reinforcement Sub-assembly *2 Crush Box
        *3 Under Floor Reinforcement - -
        *a Bottom View *b Side View
        A01W7PH Impact A01W7BF Dissipate

  3. Impact Absorbing Structure for Side Collision


    1. The body construction has been optimized to realize an effective transmission of the collision impact to the peripheral parts, such as from the center pillar to the roof reinforcements, rocker reinforcements, and floor cross members. This ensures the integrity of the cabin space and dramatically reduces body deformation.


      1. High strength sheet steel is used in the center pillar reinforcements, thus realizing a compact, lightweight, and highly rigid center pillar construction (A - A cross section).

      2. Bulkheads and gussets are placed at optimum locations within the rockers. As a result, the load from a center pillar can be transmitted to a floor cross member, absorbing the impact energy.

        A01W7BCC01
        *1 Reinforcement *2 Gusset
        *3 Bulkhead *4 Floor Cross Member
        *a A - A Cross section - -
        A01W7PH Impact A01W7BF Dissipate

      3. Energy absorbing pads are provided in the door panels and door trims to help dampen the impact applied from the sides of the vehicle to the occupants.

        A01W7JVC01
        *1 Energy Absorbing Pad - -
        *a Front *b Rear

      4. A head impact protection structure is used. With this type of construction, if the occupant's head hits against the roof side rail or pillar due to a collision, the inner panels of the roof side rail and pillar collapse to help reduce the impact.

        A01W7V1C01
        A01W7E5 Head Impact Protection Structure - -

  4. Lessening Pedestrian Head Injury


    1. A gap has been provided between the hood panel and the hood lock hook reinforcement at the front of the hood sub-assembly for creating a crushable structure. In addition, arm-shaped hood inner mastic portions are provided so as to contribute to a high impact absorption performance.

      A01W76LC01
      *1 Hood Sub-assembly *2 Hood Panel
      *a A - A Cross Section *b Arm-shaped Portion
      *c A gap is provided - -

    2. Energy absorbing brackets are used in the joint portion of the front fender. Thus, a certain deformation stroke in the event of a head form collision has been ensured and help reduce the impact.

      A01W7SNC01
      *1 Energy Absorbing Bracket *2 Front Fender
      *3 Apron Upper Member *4 Head Form
      *a A - A Cross Section - -
      A01W7PH Impact - -