SUBFRAME FOR A MOTOR VEHICLE

• US 20140145423A1
• Filed: 11/27/2013
• Published: 05/29/2014
• Est. Priority Date: 11/29/2012
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Achhammer, Siegfried, Elias, Bjrn, Isakiewitsch, Christian, Rugies, Stefan
• Granted Patent: US 9,120,506 B2
• Time in Patent Office: Days
• US Class Current: 280/781
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: B62D 21/11 with resilient means for suspension , e.g. of wheels or engine; sub-frames for mounting engine or suspensions
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A subframe of a front or rear part of a motor vehicle includes two longitudinal members arranged in spaced-apart relationship in a vehicle transverse direction and connected to one another by a cross member. A reinforcement is connected to the longitudinal members and the cross member for increasing a torsion resistance of the subframe and has integrated therein a charge module which is configured to transmit energy in a contactless manner.

Claims

1. A subframe of a front or rear part of a motor vehicle, comprising:

two longitudinal members arranged in spaced-apart relationship in a vehicle transverse direction;

a cross member connecting the longitudinal members with one another;

a reinforcement connected to the longitudinal members and the cross member for increasing a torsion resistance of the subframe; and

a charge module integrated in the reinforcement and configured to transmit energy in a contactless manner.

2. The subframe of claim 1, wherein the longitudinal members are arranged in symmetry to one another.

3. The subframe of claim 1, wherein the longitudinal members are connected via a cast node with the cross member to form an open or closed frame construction.

4. The subframe of claim 1, wherein the reinforcement has a free space, said charge module being accommodated, at least in part, in the free space.

5. The subframe of claim 4, wherein the free space is provided in midsection of the reinforcement.

6. The subframe of claim 1, wherein the charge module and the reinforcement are flush-mounted at their bottom side.

7. The subframe of claim 1, wherein the charge module includes a shielding plate and a coil unit disposed below the shielding plate.

8. The subframe of claim 7, wherein the shield is made of aluminum.

9. The subframe of claim 7, wherein the charge module is connected with the reinforcement.

10. The subframe of claim 7, wherein the charge module includes an isolating element arranged between the shielding plate and the coil unit.

11. The subframe of claim 10, wherein the isolating element is configured as a rubber-elastic support of the coil unit upon the shielding plate.

12. The subframe of claim 7, wherein the coil unit is disposed below the shielding plate geodetically in installed state.

13. A motor vehicle, comprising:

a subframe having two longitudinal members arranged in spaced-apart relationship in a direction transverse to a vehicle, a cross member connecting the longitudinal members with one another, a reinforcement connected to the longitudinal members and the cross member for increasing a torsion resistance of the subframe, and a charge module integrated in the reinforcement and configured to transmit energy in a contactless manner; and

an electric energy storage connected to the charge module.

14. The motor vehicle of claim 13, wherein the energy storage is a traction battery.