FUNCTION
Impact Absorbing Structure for Frontal Collision
A structure that ensures collision energy absorption efficiency, dissipates impact, and minimizes cabin deformation during a frontal collision has been achieved.
An engine under brace sub-assembly is used in the lower front portion of the frame. In the event of a frontal collision, the impact energy is transmitted to the frame crossmember sub-assembly No. 1 through the engine under brace sub-assembly. Thus, the moment of the backward rotation at the frame crossmember sub-assembly No. 1 occurs in combination with the moment of the forward rotation at the suspension arm support sub-assembly. This helps minimize the floor deformation caused by the collapse of the suspension arm support sub-assembly.
| *1 | Suspension Arm Support Sub-assembly | *2 | Engine Under Brace Sub-assembly |
| *3 | Frame Crossmember Sub-assembly No. 1 | *4 | Front Floor Pan |
| *a | Axial Compression Area | *b | Moderate Bend Area |
|
Front Impact Energy | - | - |
The optimally allocated panels and reinforcements allow the front impact energy received from the front end and frame sub-assembly to be dissipated and absorbed by the front body pillar, rocker, and floor reinforcement, in order to minimize the deformation of the cabin.
| *1 | Front Body Pillar | *2 | Frame Sub-assembly |
| *3 | Rocker | - | - |
|
Front Impact Energy | - | - |
Impact Absorbing Structure for Side Collision
A head impact protection structure is used. With this type of construction, if the occupant's head hits against the roof side rail and pillar in reaction to a collision, the inner ribs of the roof side rail and pillar collapse to help reduce the impact.
| *A | Double Cab Models | *B | Single Cab Models |
| *C | Extra Cab Models | - | - |
| *a | A - A Cross Section | *b | B - B Cross Section |
| *c | C - C Cross Section | *d | D - D Cross Section |
|
Head Impact Protection Structure | |
Energy Absorbing Rib |
Aerodynamics
On 4WD models and 2WD PreRunner models, an engine under cover is provided on the lower center area of the front. As a result, the turbulent airflow generated underneath the center front is suppressed into a laminar airflow, thus taking stability and operability into consideration.
| *1 | Engine Under Cover | *2 | Front Bumper Cover |
| *a | A - A Cross Section | - | - |
|
Laminar Airflow | |
Turbulent Airflow |
CONSTRUCTION
Anti-chipping Application and Rust-resistant Performance
Under coating is applied to the under side of the body, inside the wheel housing and other parts that are susceptible to stone chipping damage, thus improving the rust-resistant performance of these areas.
| *A | Double and Extra Cab Models | *B | Single Cab Models |
| *1 | Edge Seal | - | - |
|
Under Coating Area | - | - |
Sound Absorbing and Vibration Damping Materials
The cab mount area uses a collar construction to improve the rigidity of its force application point and minimize the transmission of vibration to the body.
| *1 | No. 1 Cab Mount | *2 | No. 2 Cab Mount |
| *3 | No. 3 Cab Mount (Single Cab Models) | *4 | No. 3 Cab Mount (Extra Cab Models) |
| *5 | No. 3 Cab Mount (Double Cab Models) | *6 | Frame Sub-assembly |
| *7 | Collar | *8 | Body Shell |
| *9 | Cab Mounting Cushion Holder | - | - |
| *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 | - | - |
An asphalt sheet is used to reduce engine and road noise.
| *A | Double Cab Models | - | - |
| *1 | Asphalt Sheet (Dash Panel Insulator Sheet No. 1) | *2 | Asphalt Sheet (Front Floor Silencer Sheet) |
A hood insulator is provided on the rear of the hood panel on models with diesel engine. This achieves excellent sound insulation performance.
| *A | Models without Intercooler | *B | Models with Intercooler |
| *1 | Hood Insulator | - | - |
A dash panel insulator outer is provided on models with diesel engine. This reduces the engine noise leaking into and out of the cabin.
| *1 | Dash Panel Insulator Outer | - | - |
A dash panel insulator is provided. This insulates and absorbs the engine noise to reduce the engine noise leaking into the cabin.
| *A | Except Models for Europe | *B | Models for Europe |
| *1 | Dash Panel Insulator | - | - |
| *a | A - A Cross Section | *b | B - B Cross Section |
| *c | Engine Compartment Side | *d | Cabin Side |
| *e | Pad | *f | Adhesion |
| *g | Back Side Face (Olefin Film) | *h | Cover |
| *i | Adhesive Agent | *j | Cover (EPDM) |
Polyurethane foam and sparkling material are applied to the roof panel and pillars to reduce wind and road noise.
| *A | Models for Europe with Diesel Engine or Models for Australia with Diesel Engine | - | - |
| *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 | - | - |
|
Polyurethane Foam | |
Sparkling Material |
| *A | Models without SRS Curtain Shield Airbag | *B | Models with SRS Curtain Shield Airbag |
| *C | TASA Made or TSAM Made | - | - |
| *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 |
| *k | K - K Cross Section | *l | L - L Cross Section |
| *m | M - M Cross Section | - | - |
|
Polyurethane Foam | |
Sparkling Material |
| *A | Models for Europe with Diesel Engine or Models for Australia with Diesel Engine | - | - |
| *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 |
| *k | K - K Cross Section | *l | L - L Cross Section |
| *m | M - M Cross Section | *n | N - N Cross Section |
|
Polyurethane Foam | |
Sparkling Material |
Reinforcements have been optimally allocated to the back panel area of the single cab and double cab models to minimize droning noise. On all models, a stamped shape has been added to the deck panel on the cabin side to prevent it from resonating with the back panel and minimize droning noise.
| *A | Double Cab Models | *B | Single Cab Models |
| *C | Models with Deck Panel | - | - |
| *1 | Reinforcement | - | - |
Wind noise has been reduced through the use of the following constructions:
The installation angle of the front windshield has been optimized to ensure smooth airflow.
The clearance between the door sash and the roof, and the clearance between the rear door and the deck have been reduced compared to the conventional model.
The outside rear view mirror has been optimally shaped.
| *a | A - A Cross Section | *b | B - B Cross Section |
|
Airflow | - | - |