Abstract: A rear vehicle-body structure absorbs an impact while also accommodating an elongated battery installation and an increase in an amount of batteries installed. The rear vehicle-body structure includes a rear side frame which extends in a vehicle front-rear direction in a vehicle rear portion, a rear-side battery frame which extends in a vehicle width direction in vehicle rear of a battery and in vehicle front of the rear side frame and protects the battery, and a frame bracket which couples the rear side frame with the rear-side battery frame.

Abstract: A vehicle-body front structure for an electric vehicle includes a front-side battery frame which extends in a vehicle width direction, a pair of left and right side frames and which extend forward from the front-side battery frame, a cross member between the left and right side frames and, and reinforcement members and which extend toward vehicle rear from the cross member toward the front-side battery frame.

Abstract: A vehicle-body front structure includes a partition wall portion which demarcates a space inside a vehicle cabin and a pair of left and right suspension tower portions which are formed to bulge inward in the vehicle width direction and support upper portions of front suspension apparatuses. A lower-side portion of the partition wall portion is formed to be positioned further to vehicle rear toward a lower position. A traveling motor is installed below the lower-side portion of the partition wall portion. An upper-side portion of the partition wall portion extends from an intermediate portion of the left suspension tower portion in a vehicle front-rear direction to an intermediate portion of the right suspension tower portion in the vehicle front-rear direction.

Abstract: A vehicle-body front structure for an electric vehicle includes a front-side battery frame which extends in a vehicle width direction, a pair of left and right side frames which extend from the front-side battery frame to a vehicle front to be positioned on vehicle-width-direction outer sides, a left-side support mounted on the front-side battery frame and supports the left side frame from the vehicle-width-direction outer side, and a right-side support mounted on the front-side battery frame and supports the right side frame from the vehicle-width-direction outer side.

Abstract: A rear vehicle-body structure absorbs an impact from vehicle rear even when an installed amount of the batteries is increased by including a rear side frame which extends in a vehicle front-rear direction, a rear-side cross member which is arranged such that a front portion of the rear side frame abuts the rear-side cross member from vehicle rear, the rear-side cross member extending in a vehicle width direction, a pair of left and right side sills which are spaced apart, by predetermined distances, from the front portion of the rear side frame to vehicle-width-direction outer sides and extend in the vehicle front-rear direction, and a rear-side battery frame which extends in the vehicle width direction in the vehicle rear of a battery and in vehicle front of the rear side frame. The rear-side battery frame is mounted on the left and right side sills and on the rear-side cross member.

Abstract: Peripheral components in a lower portion of a vehicle body are enabled to be efficiently mounted on the vehicle body with high mounting rigidity. To achieve efficient mounting and high mounting rigidity, a vehicle-body structure includes a battery protection frame which has a hollow cross-section. A partition wall portion is provided in an internal portion of the battery protection frame. Plural closed cross-section portions are formed in the battery protection frame by wall portions and the partition wall portion. Peripheral components which are different from each other are mounted on the plural closed cross-section portions.

Abstract: A vehicle-body front structure includes a partition wall portion which demarcates a vehicle cabin inside space, a motor arrangement portion which is formed by causing a part of the partition wall portion to bulge to an inside of a vehicle cabin, a panel reinforcement that is provided to a surface of the partition wall portion on the inside of the vehicle cabin and has a portion which extends in a vehicle width direction so as to surround at least a part of a periphery of the motor arrangement portion, and a central reinforcement which is provided to the surface of the partition wall portion on the inside of the vehicle cabin and extends from an intermediate portion of the panel reinforcement in the vehicle width direction to vehicle rear.

Abstract: A vehicle-body front structure includes a partition wall portion which demarcates a space inside a vehicle cabin, a motor arrangement portion which is formed by causing a part of the partition wall portion to bulge to an inside of the vehicle cabin and in which at least a part of a traveling motor is capable of being arranged, a reinforcement member which is inclined to be positioned lower toward vehicle rear, and a floor reinforcement which extends in a vehicle front-rear direction. A closed cross-section is configured with the motor arrangement portion, the reinforcement member, and the floor reinforcement.

Abstract: A vehicle-body front structure includes a partition wall portion which demarcates a vehicle cabin inside space, a motor arrangement portion which is formed by causing a part of the partition wall portion to bulge to an inside of a vehicle cabin and in which at least a part of a traveling motor is capable of being arranged, and a reinforcement member which extends from an upper portion of the motor arrangement portion to vehicle rear and is inclined to be positioned lower toward the vehicle rear. A rear portion of the reinforcement member is mounted on a floor panel and a lid body of a battery unit.

Abstract: A vehicle-body front structure includes a front-side battery frame which is provided in a front of the battery casing 10a pair of left and right side frames which extend from the front-side battery frame toward vehicle front to be positioned on vehicle-width-direction outer sides toward front, a pair of left and right impact absorption members in front of the side frames, a front member between the left and right impact absorption members, and left and right projections arranged between the left and right side frames and the left and right impact absorption members and protrude to the vehicle-width-direction outer sides of fronts of the left and right side frames, respectively.

Abstract: A vehicle-body front structure includes a pair of left and right side frames which extend from a front-side battery frame toward vehicle front to be positioned on vehicle-width-direction outer sides, a contactless charger between the left and right side frames, and a cross member between the left and right side frames. The contactless charger has a cross member housing configured to house the cross member.

Abstract: A vehicle-body structure improves mounting rigidity of a battery protection frame and rigidity of the battery protection frame itself by including a battery protection frame which has a hollow cross-section, a vehicle-body-side frame which extends along the battery protection frame and is coupled with the battery protection frame, and a fixation member which is inserted through a hole portion of the battery protection frame and is capable of fixing the battery protection frame to a vehicle body component as another component than the vehicle-body-side frame in an internal portion of the battery protection frame.

Abstract: A vehicle-body front structure includes a front-side battery frame which is provided in a front of the battery casing, a pair of left and right side frames which extend from the front-side battery frame toward vehicle front to be positioned on vehicle-width-direction outer sides toward front, and a cross member suspended between left and right. Outer ends of the cross member in a vehicle width direction extend to the vehicle-width-direction outer sides of outer ends, in the vehicle width direction, of fronts of the side frames.

Abstract: A vehicle-body front structure includes a partition wall portion which is provided to extend in a vehicle width direction in a vehicle front portion, a motor arrangement portion which is formed by causing a part of the partition wall portion to bulge to an inside of a vehicle cabin and in which at least a part of a traveling motor is capable of being arranged, and a reinforcement member which extends from the motor arrangement portion to vehicle rear. A rear portion of the reinforcement member is mounted on a inside-unit member which is provided in the battery unit.

Abstract: Both of a requirement for absorption of an impact load in a collision and a requirement for layout of direction and position of a steering wheel are satisfied based on a vehicle-body front structure that includes a partition wall portion which demarcates a vehicle cabin inside space. A lower-side portion of the partition wall portion is formed to be positioned further to vehicle rear toward a lower position. A traveling motor is installed below the lower-side portion of the partition wall portion. A recess portion which is recessed toward vehicle front is formed in a portion, on an upper side of the traveling motor, in the partition wall portion. An inserting hole through which a steering shaft is inserted is formed in a lower wall portion of the recess portion.

Abstract: A vehicle-front body structure includes a partition wall portion which demarcates a vehicle cabin inside space, a motor arrangement portion which is formed by causing a part of the partition wall portion to bulge to an inside of a vehicle cabin and in which at least a part of a traveling motor is capable of being arranged, a cross member which is fixed to a floor panel on a vehicle rear side of the motor arrangement portion and extends in a vehicle width direction, and a reinforcement member which couples the motor arrangement portion and the cross member together.

Abstract: A vehicle floor frame provides improved ride quality and energy absorption. A wall section opposes a lower surface of a floor panel; an outer wall section extends from an outer end portion of the wall section toward the floor panel; an inner wall section extends from an inner end portion of the wall section toward the floor panel; and a hole and a bead reduce a dimension of the wall section when an impact load is applied from an outer side in a vehicle width direction. A nut plate in a closed cross section of the floor frame includes lateral wall fixed sections respectively fixed to the outer wall section and the inner wall section; an opposing wall fixed section fixed to the wall section; and deformation promoting sections configured to reduce a dimension in the vehicle width direction of the nut plate when the impact load is applied.

Abstract: A speed of an opening-closing action of a back door, for example, is changed from an acceleration area to a deceleration area by way of a constant-speed area, and an opening-closing action of the back door is configured to come to an end in the deceleration area. In the deceleration area, deceleration (a second deceleration in FIG. 3, a fourth deceleration in FIG. 4) of an opening-closing action of the back door at a point before the opening-closing action of the back door comes to the end is set to be smaller than another deceleration (a first deceleration in FIG. 3, a third deceleration in FIG. 4) of the opening-closing action of the back door at a deceleration start point of the opening-closing action of the back door.

Abstract: An engine system is provided, which includes a cylinder block, a cylinder head, a piston, a main combustion chamber, a subchamber, an injector that injects fuel into the main combustion chamber, a main spark plug that ignites a mixture gas inside the main combustion chamber, a subspark plug that ignites the mixture gas inside the subchamber, and a control device. In a low-speed high-load range, a fuel injection timing is set in compression stroke and the main ignition and the subignition are performed after the fuel injection timing, and the fuel injection timing under a low-speed condition becomes later than that under a high-speed condition, and the ignition devices are controlled so that the subignition timing is retarded from the main ignition timing and an ignition phase difference that is the retard amount of the subignition timing becomes larger under the low-speed condition than under the high-speed condition.

Abstract: A door attachment method assembles a door with a high degree of accuracy. Embodiments include a primary fastening step of bolting hinges to attachment surfaces of a vehicle body; a door panel position measurement step of measuring a relative position of a door panel in an opening when a door is brought into a cantilevered state and the hinges are fastened; a loosening step of loosening the fastening; a door position correction step of moving the door within the attachment surfaces based on a measurement result in the door panel position measurement step; and a secondary fastening step of re-fastening the hinges to the attachment surfaces. Throughout the primary fastening step, the door panel position measurement step, the loosening step, the door position correction step, and the secondary fastening step, a state where clamps respectively grip the hinges to cause the hinges to abut the attachment surfaces is maintained.