Rear-wheel drive, plug-in hybrid electric vehicle modular subframe assembly and method

摘要

A rear subframe assembly, for use in a vehicle, includes a first and second side member that are coupled to a front cross member, a lower cross member, and an upper cross member. First and second gussets are provided to reinforce joints between each of the first and second side members and the front cross member. A motor mount portion for mounting a motor thereon is located between the side members and includes a first and second motor bracket each coupled to the front cross member through an isolator and to one of the side members through an isolator, the isolators for isolating the motor from vibration. A fuel tank mounting portion for mounting a fuel tank onto the subframe member is also provided.

主权项

1. A rear subframe assembly for a vehicle, the rear subframe assembly comprising:
a first side member, a second side member, a front cross member configured to be coupled to the first and second side members therebetween, a lower cross member configured to be coupled to the first and second side members therebetween, and an upper cross member configured to be coupled to the first and second side members therebetween; a first gusset coupled to the first side member and the front cross member and a second gusset coupled to the second side member and the front cross member, the first and second gussets for reinforcing joints between the first and second side members and the front cross member; a motor mount portion located between the first and second side members, the motor mount portion having a first motor bracket coupled to the front cross member through an isolator and to the first side member through an isolator, and a second motor bracket coupled to the front cross member through an isolator and to the second side member through an isolator, the first and second motor brackets configured to couple a motor thereon, the isolators for isolating the motor from vibration; and a fuel tank mount that is configured to support a fuel tank; wherein the position of the front cross member, the upper cross member, and the lower cross member is generally in a direction normal to the position of the side members; and wherein the fuel tank mount is disposed above the motor mount portion.