Vehicle rear portion structure

Patent metadata

Field	Value
Publication number	US-2019039446-A1
Application number	US-201816044828-A
Country	US
Kind code	A1
Filing date	Jul 25, 2018
Priority date	Aug 2, 2017
Publication date	Feb 7, 2019
Grant date	—

Abstract

In a vehicle rear portion of a vehicle, a third hydrogen tank is disposed between a left and right pair of rear side members that structure portions of the vehicle body and extend in the vehicle front-and-rear direction. An auxiliary battery is disposed at a vehicle width direction outer side of the rear side members.

First claim

What is claimed is:

1 . A vehicle rear portion structure comprising:
a left and right pair of rear side members that structure portions of a vehicle body at a vehicle rear portion, the rear side members extending in the vehicle front-and-rear direction and being disposed apart in the vehicle width direction; a hydrogen tank that is disposed between the left and right pair of rear side members and is fixed to the vehicle body; a floor panel that is disposed at a vehicle width direction outer side of the vehicle rear portion, a vehicle width direction inner end portion of the floor panel being fixed to one of the rear side members and the floor panel extending to the vehicle width direction outer side relative to one of the rear side members; a battery that is disposed on the floor panel at the vehicle width direction outer side of one of the rear side members; and a battery clamp, a vehicle width direction inner end portion of which is fixed to one of the rear side members, the battery clamp extending toward the vehicle width direction outer side to an upper portion of the battery, and the battery clamp and the floor panel sandwiching and retaining the battery from above and below.

2 . The vehicle rear portion structure according to claim 1 , wherein:
each rear side member includes a curved portion that is curved into an upper side protrusion in an arch shape in a vehicle side view, each rear side member extends in the vehicle front-and-rear direction to the vehicle front-and-rear direction rear relative to the curved portion, and the battery is disposed on the floor panel at the vehicle width direction outer side of one of the rear side members at the vehicle front-and-rear direction rear side relative to the curved portion; and the vehicle rear portion structure further includes a floor reinforcement that is fixed to the floor panel at a lower portion of the floor panel, a vehicle width direction inner end portion of the floor reinforcement being fixed to one of the rear side members, and the floor reinforcement extending toward the vehicle width direction outer side to a location at which the battery is disposed on the floor panel.

3 . The vehicle rear portion structure according to claim 2 , further comprising a bracket that is fixed to the floor reinforcement at a lower portion of the floor reinforcement, the bracket forming a chamber between the bracket and the floor reinforcement as viewed in the vehicle front-and-rear direction.

4 . The vehicle rear portion structure according to claim 1 , further comprising:
a battery carrier that is fixed to the floor panel between the battery and the floor panel, the battery being placed on the battery carrier; and an outer side connection portion that extends in the vehicle vertical direction at the vehicle width direction outer side of the battery, an upper end of the outer side connection portion being connected with a vehicle width direction outer end portion of the battery clamp, and a lower end of the outer side connection portion being connected with a vehicle width direction outer end portion of the battery carrier.

5 . The vehicle rear portion structure according to claim 2 , further comprising:
a battery carrier that is fixed to the floor panel between the battery and the floor panel, the battery being placed on the battery carrier; and an outer side connection portion that extends in the vehicle vertical direction at the vehicle width direction outer side of the battery, an upper end of the outer side connection portion being connected with a vehicle width direction outer end portion of the battery clamp, and a lower end of the outer side connection portion being connected with a vehicle width direction outer end portion of the battery carrier.

6 . The vehicle rear portion structure according to claim 1 , wherein the battery and the rear side members overlap in a vehicle side view.

7 . The vehicle rear portion structure according to claim 2 , wherein the battery and the rear side members overlap in a vehicle side view.

8 . The vehicle rear portion structure according to claim 6 , further comprising a left and right pair of second members that extend in the vehicle front-and-rear direction at the vehicle width direction inner sides of the pair of rear side members.

9 . The vehicle rear portion structure according to claim 7 , further comprising a left and right pair of second members that extend in the vehicle front-and-rear direction at the vehicle width direction inner sides of the pair of rear side members.

10 . The vehicle rear portion structure according to claim 2 , wherein each rear side member includes:
a front member at which the curved portion is formed; and a rear member that is connected with the front member at a rear end portion of the curved portion and that extends to the vehicle front-and-rear direction rear.

11 . The vehicle rear portion structure according to claim 3 , wherein each rear side member includes:
a front member at which the curved portion is formed; and a rear member that is connected with the front member at a rear end portion of the curved portion and that extends to the vehicle front-and-rear direction rear.

12 . The vehicle rear portion structure according to claim 5 , wherein each rear side member includes:
a front member at which the curved portion is formed; and a rear member that is connected with the front member at a rear end portion of the curved portion and that extends to the vehicle front-and-rear direction rear.

13 . The vehicle rear portion structure according to claim 7 , wherein each rear side member includes:
a front member at which the curved portion is formed; and a rear member that is connected with the front member at a rear end portion of the curved portion and that extends to the vehicle front-and-rear direction rear.

14 . The vehicle rear portion structure according to claim 9 , wherein each rear side member includes:
a front member at which the curved portion is formed; and a rear member that is connected with the front member at a rear end portion of the curved portion and that extends to the vehicle front-and-rear direction rear.

Assignees

• Toyota Motor Co Ltd

Inventors

• Koike Hiroyuki
• Shimasaki Junichi

Classifications

• B60K15/07 Primary

  of gas tanks · CPC title

• B62D25/20 Primary

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• B60K2015/0638

  the fuel tank is arranged in the rear of the vehicle · CPC title