BODY STRUCTURE DETAILS


  1. FUNCTION


    1. Safety Features


      1. Impact Absorbing Structure for Frontal Collision


        1. Through the adoption of a body structure that disperses collision energy to multiple frame components, collision energy is efficiently absorbed to suppress cabin deformation.

        2. The front side members are utilized to absorb and disperse energy in a frontal collision.

        3. A spacer transmits impact received outside of the front bumper reinforcement to the front side member. (on left side)

        4. Front pillar reinforcements are strengthened to optimize dispersal of collision energy to the roof rail, rocker panel and floor panel.

          A01HRUGE01
          Text in Illustration
          *1 Front Bumper Reinforcement *2 Spacer
          *3 Front Side Member *4 Front Body Pillar Reinforcement
          A01HRZQ Impact A01HS1C Impact Flow

      2. Impact Absorbing Structure for Side Collision


        1. Ultra high tensile strength steel is used for the center pillar outer reinforcement, center pillar beltline reinforcement, center pillar hinge reinforcement, rocker panel inner reinforcement and rocker panel outer reinforcement to ensure high strength.

        2. Bulkheads are placed on both sides of floor cross members and center floor side crossmember to efficiently transmit impact load from the impact beam to the floor crossmembers.

        3. The use of roof reinforcement enables a construction that transmits load to the opposite side of the vehicle in a collision.

        4. Optimal placement of the impact protect beam enables a construction that efficiently transmits load.

        5. The impact support box is optimally placed on the front floor between the front driver's seat and front passenger's seat to ensure that load is transmitted from the center pillar to the seat pipe, impact support box, and seat pipe on the opposite side, thus helping secure sufficient survival space.

        6. A rear door box is provided inside the bottom of the rear door. In the event of a side collision, the rear door box strikes the rear crossmember gusset, absorbing the impact by transmitting it to the center floor member.

          A01HRU3E01
          Text in Illustration
          *1 Center Pillar Outer Reinforcement *2 Front Floor Crossmember
          *3 Center Floor Crossmember *4 Roof Reinforcement
          *5 Rocker Panel Reinforcement *6 Impact Protect Beam
          *7 Impact Support Box *8 Seat Pipe
          *9 Rear Door Box *10 Center Crossmember Gusset
          A01HRZQ Impact A01HS1C Impact Flow

        7. When the roof is subjected to an impact, the impact is dispersed to the roof reinforcements, front pillars and center pillars, thereby minimizing deformation of the cabin.

          A01HS5A
          Text in Illustration
          A01HRZQ Impact A01HS1C Impact Flow

      3. Impact Absorbing Structure for Rear Collision


        1. Straight rear side members are used to reduce body deformation in a rear collision.

      4. Lessening Pedestrian Injury


        1. A hood reinforcement is provided for the hood inner panel to help secure excellent pedestrian protection performance and tensile rigidity.

          A01HS75E01
          Text in Illustration
          *1 Longitudinal Ribbed Structure *2 Dent Reinforcement (Impact Absorbing Structure)

        2. An impact absorbing bracket is used for the mounting portion of the front fender panel to absorb impact energy to the head of the pedestrian in a collision, thus dampening the impact to the head.

          A01HRT5E01
          Text in Illustration
          *1 Impact Absorbing Bracket (Front) *2 Impact Absorbing Bracket (Rear)
          *a A-A Cross Section *b B-B Cross Section
          *c Before Collision *d After Collision
          A01HRZQ Impact - -

        3. The cowl uses an open section structure that collapses easily in an impact from the top, thus reducing the impact to and head injuries sustained by a pedestrian in an accident.

          A01HRXIE01
          Text in Illustration
          *1 Window Shield Glass *2 Cowl Top Panel Sub-assembly
          *a A-A Cross Section *b Before Collision
          *c After Collision - -
          A01HRZQ Impact - -

    2. Aerodynamics


      1. An aero stabilizing fin is provided on the outer rear view mirror base and on the rear combination light lens for enhanced aerodynamics.


        1. After passing the aero stabilizing fin, the air speed will increase and a vortex will be generated.

        2. This vortex increases the speed of the surrounding air while at the same time pulling the airflow towards the vehicle body.

        3. The airflow with higher speed passes near both sides of the vehicle body and ends at the rear of the vehicle. This helps to hold the vehicle body, and thus stabilizes the vehicle.

        A01HRWIE01
        Text in Illustration
        *a Aero Stabilizing Fin *b Vortex
        A01HS1C Airflow A01HRZQ Hold the Vehicle from Both Side

      2. The height, angle, and shape of the front bumper have been optimized, resulting in smooth airflow underneath the floor.

        A01HS4FE01
        Text in Illustration
        *1 Front Bumper - -
        A01HS1C Airflow - -

      3. Various types of airflow routing parts are provided under the floor to control airflow. In addition, an undercover is provided to make the under floor area flat in order to ensure excellent aerodynamic performance.

      4. A fin-shaped engine under cover and rear under cover have been adopted to achieve higher diffuser efficiency, thereby ensuring stability.

        A01HS7F
        Text in Illustration
        A01HS7Y Undercover Area - -

  2. CONSTRUCTION


    1. Lightweight and Highly Rigid Body


      1. High strength steel and ultra high strength steel are used in order to realize excellent body rigidity and a lightweight body.

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        Text in Illustration
        *1 High Strength Steel *2 Ultra High Strength Steel

    2. Rust-resistant Body


      1. Anti-corrosion steel sheet is used as shown in the following illustration:

        A01HS1JE01
        Text in Illustration (Upper Body:)
        *A Models with Roof Sliding System - -
        A01HS7Y Anti-corrosion Steel Sheet - -

      2. For rust resistance, sealant has been applied to the floor panel to prevent water from entering through the mating surfaces of the panels. Undercoating has been also applied to reduce damage to the body from chipping, contributing to rust resistance.

        A01HRTHE01
        Text in Illustration (Under Body:)
        *a Sealant - -
        A01HS7Y Under Coat - -

    3. Body Shell Construction


      1. The cowl top panel sub-assembly outer, which is straight, is used to connect the left and right front spring supports, improving lateral rigidity and ensuring front suspension input point rigidity and body rigidity.

      2. Sound absorbing material is used on the engine compartment side of the cowl top panel sub-assembly to reduce the amount of engine noise entering the vehicle cabin from the engine compartment.

        A01HS8SE01
        Text in Illustration
        *1 Cowl Top Panel Sub-assembly - -

      3. A closed shape has been adopted for the upper back panel. The upper back panel, which is used to connect the left and right back side panels, reducing weight while improving body rigidity.

        A01HRZUE01
        Text in Illustration
        *1 Under Back Panel - -

      4. Along with the optimal positioning of frame components such as rear side members, center floor members, the rear floor crossmember and rear sub-frame, the usage of a small number of parts has realized a lightweight design while also ensuring excellent rigidity and handling stability.

        A01HS5EE01
        Text in Illustration
        *1 Rear Side Member *2 Center floor Crossmember
        *3 Rear floor Crossmember *4 Rear Sub-frame

    4. Low Vibration and Low Noise Body


      1. The following body structures are used, in order to reduce panel vibration and body frame movement.

        Panel vibration reduction structure

        • The cross member of the dash panel is provided

        • The tunnel reinforcement is connected to the floor

        • The floor pan panel rigidity has been improved

        • The floor pan bead layouts have been changed
        A01HS2LE01
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        *1 Cross Member of Dash Panel *2 Tunnel Reinforcement
        *3 Floor Pan Panel *4 Bead

      2. Damping coatings are provided, combining enhanced quietness and reduced weight.

        A01HS1M
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        A01HS7Y Damping Coating - -

      3. Silencer pads are provided on the engine compartment side and cabin side of the dash panel, minimizing penetration of engine noise and road noise into the cabin.

        A01HRZXE01
        Text in Illustration
        *1 Dash Panel Insulator Outer *2 Dash Panel
        *3 Dash Panel Insulator Inner - -

      4. The layout of the sound-absorbing material is optimized to reduce noise and vibration.

        A01HRZZE01
        Text in Illustration
        *a A-A Cross Section *b B-B Cross Section
        *c C-C Cross Section - -
        A01HRV3 Sound-absorbing Material - -

      5. Sound absorbing material are used in the front fender liners to reduce road noise.

        A01HRWU
        Text in Illustration
        A01HS7Y Sound Absorbing Material - -

      6. Silencers are provided inside the rear wheel housings to minimize the penetration of splashing noise generated in the wheel housings into the cabin.

        A01HRZTE01
        Text in Illustration
        *1 Rear Wheel House Silencer - -
        *a A-A Cross Section - -

      7. Weatherstrips are provided for the front and rear doors at the rocker panel to minimize the penetration of road noise into the cabin.

        A01HRYNE01
        Text in Illustration
        *1 Weatherstrip - -
        *a A-A Cross Section - -

    5. Parts that Reduce Overall Damage


      1. A concave design has been adopted for the front bumper absorber. This helps prevent the vehicle from going under obstacles in the event of a collision.

        A01HS7ZE01
        Text in Illustration
        *1 Front Bumper Absorber *2 Front Bumper Reinforcement
        *3 Obstacles - -
        *a Before Collision *b After Collision