Mazda Motor Corporation

Hiroaki Suumen

Masaki Aoyama

Hidenori Matsuoka

Hirotaka Natsume

Keisuke Ebisumoto

Kazuhiro Kageyama

Yoshiaki Noguchi

Hiromi Miwade

Yusuke Oki

Yuki Kuwano

Tsuyoshi Iwata

Koji Okita

Satoshi Mizutani

A lower vehicle-body structure comprises a vehicle floor comprising a bottom face portion and a floor tunnel which protrudes upwardly and extends in a vehicle longitudinal direction, a pair of right-and-left floor cross members extending in a vehicle width direction on both sides of the floor tunnel, and a connecting member provided to extend in the vehicle width direction at a position which overlaps the floor cross members in the vehicle longitudinal direction and be fixed to at least one of the vehicle floor and the floor cross members at plural fixation positions. These plural fixation positions are located at plural different levels in a range of a height of the floor cross members.

Lower vehicle-body structure

A transmission-side mount bracket includes connection portions which connect a front-side leg portion and a rear-side leg portion of a leg member, a middle attachment (fixation) portion which is provided at the connection portions at a position located between the front-side leg portion and the rear-side leg portion and fixed to the powertrain, and a rigidity-reduction portion (an opening portion) which has the rigidity against a load applied in the vehicle width direction which is lower than that of the front-side leg portion and the rear-side leg portion and is provided at a position located in the vicinity of the middle attachment (fixation) portion.

Powertrain mount structure of vehicle

At least one of a pair of right and left motor unit support systems for mounting and supporting a motor unit () on a cross member () is fastened and fixed to an upper part of the motor unit () by a first shaft-like fastening member (a first bolt ()). An axial direction of the first shaft-like fastening member (the first bolt ()) is the same as a vehicle longitudinal direction in a state in which the at least one of the motor unit support systems is fastened and fixed to the upper part of the motor unit ().

Electric vehicle

Growing community of inventors

Higashihiroshima, Japan

Hiroaki Suumen