Body Structure
Body Structure OutlineA crash safety body is used to ensure the world's top-level occupant protection performance in its class, as well as Toyota's own stringent targets. Moreover, this vehicle pursues safety from various aspects, such as through the us of the "head impact protection structure" or the "Brake Pedal Construction for Collision".
An "omni-directional compatibility body structure", an evolved form of the crash safety body structure that aims at the preservation of both vehicles during a collision between vehicles of different weight classes, is used. In terms of ensuring the survival space for the occupants, this vehicle aims at the world's top level of crash safety performance in its class.
Based on a monocoque structure, the allocation of the various parts and materials and their joining structure have been optimized. High tensile sheet steel is positively used, compromising 45% of the entire body frame. Thus, a lightweight and highly rigid body with a minimal amount of vibration and noise has been achieved.
To ensure a high level of rustproofing performance, the body uses rustproof sheet steel extensively, and the wheel housings and the front floor area (which are exposed to water and gravel) have been provided with a lightweight, chip-resistant undercoating.
Sound-absorbing materials have been used throughout the body to ensure its quietness.
To reduce wind noise, the shape of the various areas of the upper body has been optimized in accordance with the movement of air that flows from the front to the rear of the vehicle. Furthermore, items that guide airflow such as an engine under cover and spats have been provided under the floor in order to achieve superior aerodynamics.
Cabin Frame Construction
In addition to optimizing the cross-sectional areas of the pillars, frame matena1s are provided effectively in the side outer panels. This strengthening measures increase rigidity and reduce road noise.
Body Shell(Around The Rear)
A large room partition panel has been created by laser welding the upper back panel and the No.2 center floor cross member, thus achieving both weight reduction and improved rigidity.
Body Shell (Suspension member fitting portion)
Various types of floor cross members are provided to join the right and left areas to which the rear suspension member is mounted. This ensures the proper rigidity at the force application point, which reduces road noise.
