BODY STRUCTURE > DETAILS



FUNCTION

  1. Safety Features

    1. Impact Absorbing Structure for Frontal Collision

      1. The front side members utilize ultra high tensile strength steel in a construction to absorb and disperse energy in a frontal collision.
      2. The use of under members enables a construction that disperses load from the radiator supports.
      3. Door beltline reinforcements are strengthened to optimize dispersal of collision energy to the front pillar, door beltline, and rocker panel.
      4. The use of a crossmember in the dash panel enables a construction that disperses load from the front side members to the floor member and upper body.
      5. The use of members on the front floor at the sides of the tunnel enables a construction that achieves tunnel strength and dispersal of load from the front side members.

      6. An impact absorbing pad with sound absorbing performance is mounted from the lower surface of the dash panel to the floor front end to reduce damage to the legs in a collision.


        Y109110E01


        Text in Illustration 
        *1
        		Front Side Member
        		*2
        		Radiator Support
        *3
        		Door Beltline Reinforcement
        		*4
        		Rocker Panel
        *5
        		Crossmember
        		*6
        		Floor Member
        *7
        		Impact Absorbing Pad
        		-
        		-
        V100135
        		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 hinge reinforcement, rocker panel inner reinforcement, rocker panel outer reinforcement and roof center reinforcement to ensure high strength.
      2. Bulkheads are placed on both sides of the No. 1 and No. 2 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.


        Y109111E01


        Text in Illustration 
        *1
        		Center Pillar Outer Reinforcement
        		*2
        		Center Pillar Hinge Reinforcement
        *3
        		Rocker Panel Outer Reinforcement
        		*4
        		No. 1 Floor Crossmember
        *5
        		No. 2 Floor Crossmember
        		*6
        		Center Floor Crossmember
        *7
        		Roof Reinforcement
        		*8
        		Impact Protect Beam
        *9
        		Impact Support Box
        		*10
        		Seat Pipe
        *11
        		Center Pillar
        		-
        		-
        V100135
        		Impact Flow
        		-
        		-

    3. Impact Absorbing Structure for Rear Collision


      1. Straight rear side members are used to reduce body deformation in a rear collision, and the reinforcements in rear side members have been optimally located to ensure high strength.


        Y109113E01


        Text in Illustration 
        *1
        		Rear Side Member
        		*2
        		Barrier

    4. Lessening Pedestrian Injury


      1. Energy absorbing material has been adopted in front of the bumper reinforcement and under the radiator support, easing the impact to the pedestrian's legs to help reduce injuries.


        Y109114E01


        Text in Illustration 
        *1
        		Radiator Grille
        		*2
        		Bumper Reinforcement
        *3
        		Energy Absorbing Material
        		-
        		-
        *a
        		A-A Cross Section
        		-
        		-

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


        Y109115E01


        Text in Illustration 
        *1
        		Hood Reinforcement
        		-
        		-
        *a
        		A-A Cross Section
        		-
        		-



  2. Aerodynamics



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


      Y109116


      Text in Illustration 
      V100144
      		Undercover Area
      		-
      		-


CONSTRUCTION


  1. Lightweight and Highly Rigid Body

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



    2. Aluminum is used in the hood panel, front bumper reinforcement, back door and rear bumper reinforcement, resulting in a lightweight vehicle.


      Y109165E01


      Text in Illustration (Upper Body:) 
      *a
      		High Strength Steel (1470 MPa Class)
      		*b
      		High Strength Steel (980 MPa Class)
      *c
      		High Strength Steel (590 MPa Class)
      		*d
      		High Strength Steel (440 MPa Class)
      *e
      		Aluminum
      		-
      		-

      Y109166E01


      Text in Illustration (Under Body:) 
      *a
      		Top View
      		*b
      		Bottom View
      V100144
      		High Strength Steel (590 MPa Class)
      		V100145
      		High Strength Steel (440 MPa Class)
      V100155
      		Aluminum
      		-
      		-



    3. Braces have been adopted for the lower surfaces of the front and rear suspension members, realizing excellent rigidity.


      Y109117E01


      Text in Illustration 
      *1
      		Brace
      		*2
      		Front Suspension Member
      *3
      		Rear Suspension Member
      		-
      		-



  2. Rust-resistant Body



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


      Y109168


      Text in Illustration (Upper Body:) 
      V100144
      		Anti-corrosion Steel Sheet
      		-
      		-

      Y109169E01


      Text in Illustration (Under Body:) 
      *a
      		Top View
      		*b
      		Bottom View
      V100144
      		Anti-corrosion Steel Sheet
      		-
      		-



  3. Low Vibration and Low Noise Body

    1. The following items are provided to reduce vibration in the dash panel.

      1. A dash panel crossmember
      2. A tunnel reinforcement that connects both sides of the floor
      3. A cowl to brace that connects the floor and cowl

    2. A rigid floor and optimized rib placement to reduce floor panel resonance.

    3. The following items are provided to minimize movement of the body shell to ensure quietness.

      1. A rocker inner bulkhead
      2. A straight No. 1 crossmember

      3. Highly rigid joints between the rocker inner reinforcements and floor.


        Y109118E01


        Text in Illustration 
        *1
        		Dash Panel Crossmember
        		*2
        		Tunnel Reinforcement
        *3
        		Cowl To Brace
        		*4
        		Rid
        *5
        		Rocker Inner Bulkhead
        		*6
        		No. 1 Crossmember
        *7
        		Rocker Inner Reinforcement
        		-
        		-



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


      Y109119


      Text in Illustration 
      V100144
      		Damping Coating
      		-
      		-



    5. Engine hood silencer, cowl silencer and dash panel outer silencer are provided to reduce the amount of engine noise leaking into and out of the cabin.


      Y109120E02


      Text in Illustration 
      *1
      		Engine Hood Silencer
      		*2
      		Dash Panel Outer Silencer
      *3
      		Cowl Silencer
      		-
      		-



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


      Y109121E01


      Text in Illustration 
      *a
      		A-A Cross Section
      		*b
      		B-B Cross Section
      *c
      		C-C Cross Section
      		*d
      		D-D Cross Section
      *e
      		E-E Cross Section
      		*f
      		F-F Cross Section
      *g
      		G-G Cross Section
      		*h
      		H-H Cross Section
      *i
      		I-I Cross Section
      		*j
      		J-J Cross Section
      V100155
      		Sound-absorbing Material
      		-
      		-



    7. Sound absorbing materials are adopted in the following areas across the cabin to reduce the amount of noise from both inside and outside the cabin.


      Y109122E01


      Text in Illustration 
      *1
      		Roof Silencer
      		*2
      		Front Pillar
      *3
      		Rear Pillar
      		*4
      		Cowl Side Trim
      *5
      		Front Scuff Panel
      		*6
      		Front Door Trim
      *7
      		Center Pillar Lower
      		*8
      		Rear Scuff Panel
      *9
      		Rear Door Trim
      		*10
      		Deck Side Trim
      *11
      		Deck Box
      		*12
      		Back Door Trim
      V100144
      		Sound-absorbing Material
      		-
      		-



  4. Parts with Low Repair Cost

    1. A front side member bracket sub-assembly that absorbs impact energy to reduce damage to the body frame and the front bumper reinforcement sub-assembly is connected to the front side member using bolts to improve ease of repair and replacement.



    2. A structure with the radiator support connected to the front side member using bolts is used to improve the ease of repair, by reducing the damage to related parts (only the damaged parts need to be replaced).


      Y109123E01


      Text in Illustration 
      *1
      		Crush Box
      		*2
      		Bumper Reinforcement
      *3
      		Radiator Support
      		-
      		-



    3. The crush box is connected to the rear side member using bolts to improve the ease of repair and replacement.


      Y109125E01


      Text in Illustration 
      *1
      		Crush Box
      		*2
      		Rear Side Member