US 12,145,433 B2
Vehicle substructure for an at least semi-electrically driven motor vehicle
Philipp Kellner, Renningen-Malmsheim (DE); Andreas Munzert, Gerlingen (DE); Christopher Volkmer, Niefern-Öschelbronn (DE); and Sebastian Ortmann, Hamburg (DE)
Assigned to Dr. Ing. h.c. F. Porsche Aktiengesellschaft, (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Mar. 16, 2023, as Appl. No. 18/122,210.
Claims priority of application No. 10 2022 107 486.2 (DE), filed on Mar. 30, 2022.
Prior Publication US 2023/0311632 A1, Oct. 5, 2023
Int. Cl. B60L 50/60 (2019.01); B60K 1/04 (2019.01)
CPC B60K 1/04 (2013.01) [B60L 50/66 (2019.02); B60K 2001/0438 (2013.01); B60Y 2306/01 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A vehicle substructure for a motor vehicle, said vehicle substructure comprising:
at least one chassis auxiliary frame for a rear axle chassis, which is connected to a body in a region of a rear carriage,
at least one battery system arranged in a forward travel direction in front of the chassis auxiliary frame, the at least one battery system including a battery support structure for receiving at least one battery device, wherein the battery support structure is connected to the body, and
at least one mounting carrier for transferring a load from the chassis auxiliary frame into the battery support structure in a crash event,
wherein the at least one mounting carrier is configured to fixedly connect the chassis auxiliary frame and the battery system to one another prior to being installed in the vehicle, thereby providing a pre-mounting assembly, such that the pre-mounting assembly is configured to be married as a unit to the body and the mounting carrier is configured so as to be downwardly disengaged from the chassis auxiliary frame and the battery system upon the marriage of the pre-mounting assembly to the body, such that the chassis auxiliary frame and the battery system are configured to be dismounted from the body independently of one another,
wherein the mounting carrier comprises at least three support arms including at least one base support arm extending in a vehicle transverse direction and at least two side support arms fixed angularly to the base support arm so that the mounting carrier is configured in a trapezoidal manner, and
wherein the battery support structure comprises at least two battery longitudinal carriers extending in a vehicle longitudinal direction and wherein the battery longitudinal carriers are respectively connected by their rearward ends to one of the side support arms.