A vehicle structure includes a fuel tank configured to store a fuel supplied to an internal-combustion engine of a vehicle and a battery configured to store an electric power supplied to an electric motor of the vehicle to drive the vehicle. A gravity center of the battery is lower than a gravity center of the fuel tank, and at least a part of the fuel tank overlaps with the battery in a top plan view of the vehicle.

A gas fuel storage device for a vehicle is provided. The device more easily secures a gas fuel storage capacity and prevents interior marketability of the vehicle from deteriorating.

A fuel tank cover attachment assembly includes a fuel pump cover and an attachment ring. The fuel pump cover has an attachment flange configured to overlay a surface surrounding a fuel tank opening such that with the fuel pump cover overlaying the surface, the fuel tank opening is covered. The attachment ring is dimensioned to cover the attachment flange of the fuel pump cover and attach to attachment features protruding from the surface. The attachment ring has a first flange member and a second flange member. The first flange member is fixedly attached to the attachment ring and extends upwardly therefrom. The second flange member is removably attached to the attachment ring and extending upwardly therefrom.

A vehicle configuration wherein the center of mass of the vehicle is approximately superimposed upon the passenger and driver centers of mass when seated within the vehicle. An occupant's center of mass can be approximated using a standard center of mass position approximation, or a combination of any number of standard center of mass position approximations. The vehicle's center of mass can be approximately superimposed upon the occupant's center of mass in at least the longitudinal and vertical directions.

A battery is mounted in front of the vehicle along a longitudinal direction of the vehicle and mounted on the vehicle body, and the fuel tank is mounted in the vehicle body by disposing the fuel tank at the rear side in the longitudinal direction of the vehicle such that expansion of passenger compartment and vehicle body stability may be achieved.

A vehicle can include a longitudinal direction, a traverse direction and a vertical direction that are orthogonal to each other, a pair of front seats, a pair of rear seats, a fuel tank and a canister. The pair of rear seats can be mounted behind the first pair of seats in the longitudinal direction. The fuel tank can be mounted under a first of the rear seats. The canister can be mounted under a second of the rear seats.

A hybrid vehicle having an improved arrangement structure is provided. The hybrid vehicle includes a fuel tank which provides fuel to an engine, and is disposed in a first area which is recessed upward from the under surface of the exterior of a vehicle body. A battery provides an electric driving force to a vehicle, and is disposed in a second area which is recessed downward between the bottom of the interior of the vehicle body and a rear seat. The first area is disposed further forward than the second area in a longitudinal direction of the vehicle body.

A vehicle can include a longitudinal direction, a traverse direction and a vertical direction that are orthogonal to each other, a pair of front seats, a pair of rear seats, a fuel tank and a canister. The pair of rear seats can be mounted behind the first pair of seats in the longitudinal direction. The fuel tank can be mounted under a first of the rear seats. The canister can be mounted under a second of the rear seats.

An electric rotary machine case, which has a cylindrical shape and accommodates an electric rotary machine, includes a passage extending along a rotation axis direction of the electric rotary machine on an outer periphery of the electric rotary machine, and a protrusion portion protruding radially outward from an outer peripheral surface of the electric rotary machine case, the protrusion portion having the passage formed inside the protrusion portion. The protrusion portion has a flat surface in a cross-section orthogonal to a rotation axis of the electric rotary machine.

A drive unit includes: a rotary electric machine; a rotary electric machine case accommodating the rotary electric machine; an electric power conversion device electrically connected to the rotary electric machine and configured to convert electric power supplied to the rotary electric machine and electric power supplied from the rotary electric machine; and an output shaft extending out from the rotary electric machine case and configured to output power of the rotary electric machine. The electric power conversion device is arranged on one side of the rotary electric machine. The output shaft is arranged between the rotary electric machine and the electric power conversion device.