Mazda Motor Corporation

Yasuhiro Kohara

Katsumasa Sogame

Kazue Sumida

Shirou Nakatani

Nobuyuki Ikemoto

Takao Maruko

A vehicle lower structure includes: first and second battery units that are arranged under a floor panel and on both sides in a vehicle width direction of a propeller shaft; right and left floor frames disposed on a lower surface side of the floor panel. The floor frame has a front inclined section and a width increased section. The first and second battery units are arranged between the width increased sectionsof the right and left floor frames. A battery-related electrical component, a width of each of which in the vehicle width direction is less than a width of each of the first and second battery units, is arranged between the front inclined sections.

Vehicle lower structure

A vehicle lower structure includes a battery pack arranged under a floor panel and having: first and second battery units that are separately arranged from each other on both sides in the vehicle width direction of the propeller shaft; and a battery cover. The battery cover has a first battery accommodation section, a second battery accommodation section, and a coupling section that couples the first and second battery accommodation section and extends in the vehicle width direction. The coupling section includes a fragile section between the first and second battery accommodation sections in the vehicle width direction.

A vehicle lower structure includes: a battery pack having first and second battery units and a battery cover; and a fuel tank that is arranged on a vehicle rear side to be higher than the first and second battery units. At positions under a floor panel, the first and second battery units are arranged on both sides in a vehicle width direction of a propeller shaft. The battery cover has a coupling section that couples first and second battery accommodation sections. The coupling section couples the first and second battery accommodation sections such that a vehicle rear side thereof is higher than the first and second battery accommodation sections, extends in the vehicle width direction at a position above the propeller shaft, and is arranged next to a vehicle front side of the fuel tank.

An automobile rear body structure capable of allowing a space created between a rear bumper reinforcing member and a line connecting respective rear ends of a pair of rear side frames to be effectively utilized. In this automobile rear body structure, a rear end cross member () has an expanded portion () formed to expand rearward relative to respective rear ends () of a pairs of rear side frames (), and a rear floor pan () has a rear edge including a protruded portion (). The protruded portion () is formed to protrude relative to the rear ends () of the pairs of rear side frames () toward the expanded portion of the rear end cross member () and connected to the rear end cross member (), so as to allow a luggage compartment space to be enlarged rearward relative to the rear ends () of the pairs of rear side frames ().

Growing community of inventors

Hiroshima, Japan

Yasuhiro Kohara