Dynamics of RX-8

摘要

In order to realize a basic concept of "New 4-Door Sports Car for 4-Adult", in RX-8, we had thoroughly pursued superior controllability and handling which presents incomparable sports driving pleasure, and ride comfort such as reduction in road noise, thus having improving them significantly. Double wishbone type is adopted for a front suspension, and multi-link type is adopted for a rear suspension respectively, which produces a linear geometry change and optimizes a compliance characteristic. The adoption of a rack-drive type electric power steering has realized natural and stable steering feel without strange feeling from low to high speeds. A rear high-rigidity sub-frame is equipped with six rubber mounts, thus achieving steering & handling improvement and road noise restraint. For the front brake of a sports suspension, a 17-inch large-diameter ventilated disc is adopted to ensure braking power high enough to support sports driving. For a body, in order to realize so high body rigidity that is absolutely unthinkable in a center pillar-less body and driving stability, static flexural rigidity and torsional rigidity of the whole body have been improved, as well as local rigidity improved by dynamic transformation analysis. Furthermore, strong underbody framework and effective reinforcement of cabin have realized a lightweight body with high rigidity.