Vehicle body base structure

Patent metadata

Field	Value
Publication number	US-12515508-B2
Application number	US-202318112013-A
Country	US
Kind code	B2
Filing date	Feb 21, 2023
Priority date	Mar 24, 2022
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

A vehicle body base structure includes a battery pack that is configured to supply electric power to a traction motor and that is disposed beneath a floor panel, a bracket that pivotally supports a trailing arm and that is fixed to a rear side member, and a reinforcing brace that is fixed to the bracket and that is also fixed to the battery pack. The bracket is located rearward from the battery pack in a vehicle front-rear direction.

First claim

What is claimed is:

1 . A vehicle body base structure comprising:
a battery pack that is configured to supply electric power to a traction motor and that is disposed beneath a floor panel; a bracket that pivotally supports a trailing arm and that is fixed to a rear side member, the bracket being located rearward from the battery pack in a vehicle front-rear direction; and a reinforcing brace that is fixed to the bracket by a fastener and that is also fixed to the battery pack, a fastening point of the reinforcing brace and the bracket being located rearward beyond a terminal end of the battery pack in the vehicle front-rear direction.

2 . The vehicle body base structure according to claim 1 , wherein the reinforcing brace is fixed to a rear face of the battery pack in the vehicle front-rear direction.

3 . The vehicle body base structure according to claim 2 , wherein the reinforcing brace is fixed to a side face of the battery pack in the vehicle front-rear direction.

4 . The vehicle body base structure according to claim 1 , further comprising:
a flange extending horizontally at a lower end of the bracket, wherein the reinforcing brace is fixed to the flange.

5 . The vehicle body base structure according to claim 1 , wherein the reinforcing brace is fixed to a lower face of the battery pack.

6 . A vehicle body base structure comprising:
a battery pack that is configured to supply electric power to a traction motor and that is disposed beneath a floor panel; a bracket that pivotally supports a trailing arm and that is fixed to a rear side member, the bracket being located rearward from the battery pack in a vehicle front-rear direction; and a reinforcing brace that is fixed to the bracket by a fastener and that is also fixed to the battery pack, the reinforcing brace is fixed to a rear face at a terminal end of the battery pack in the vehicle front-rear direction.

7 . The vehicle body base structure according to claim 6 , wherein a fastening point of the reinforcing brace and the bracket is located rearward from the battery pack in the vehicle front-rear direction.

8 . The vehicle body base structure according to claim 6 , wherein the reinforcing brace is fixed to a side face of the battery pack in the vehicle front-rear direction.

9 . The vehicle body base structure according to claim 6 , further comprising:
a flange extending horizontally at a lower end of the bracket, wherein the reinforcing brace is fixed to the flange.

10 . A vehicle body base structure comprising:
a battery pack that is configured to supply electric power to a traction motor and that is disposed beneath a floor panel; a bracket that pivotally supports a trailing arm and that is fixed to a rear side member, the bracket being located rearward from the battery pack in a vehicle front-rear direction; a reinforcing brace that is fixed to the bracket and that is also fixed to the battery pack; and a flange fixed to and extending horizontally from a lower end of the bracket, the reinforcing brace being fixed to the flange, the bracket connected to the battery pack by the sequential connection of the bracket to the flange, the flange to the reinforcing brace, and the reinforcing brace to the battery pack.

11 . The vehicle body base structure according to claim 10 , wherein a fastening point of the reinforcing brace and the bracket is located rearward from the battery pack in the vehicle front-rear direction.

12 . The vehicle body base structure according to claim 10 , wherein the reinforcing brace is fixed to a rear face of the battery pack in the vehicle front-rear direction.

13 . The vehicle body base structure according to claim 12 , wherein the reinforcing brace is fixed to a side face of the battery pack in the vehicle front-rear direction.

14 . The vehicle body base structure according to claim 10 , wherein the reinforcing brace is fixed to a lower face of the battery pack.

15 . The vehicle body base structure according to claim 10 , wherein the flange is integrally formed with the bracket.

Assignees

• Toyota Motor Co Ltd

Inventors

• Hirota Takuya
• Yoshioka Hidenori
• Ogawa Koji
• Katayama Shinya
• Heki Kyohei
• Omoto Takayuki

Classifications

• B60K2001/0438

  Arrangement under the floor · CPC title

• B62D27/023

  Assembly of structural joints · CPC title

• B62D25/2009

  in connection with other superstructure subunits · CPC title

• B62D21/11

  with resilient means for suspension {, e.g. of wheels or engine; sub-frames for mounting engine or suspensions} · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title