Motor vehicle having a chassis with an air spring system

Patent metadata

Field	Value
Publication number	US-12466227-B2
Application number	US-202418762749-A
Country	US
Kind code	B2
Filing date	Jul 3, 2024
Priority date	Jul 4, 2023
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A motor vehicle having a chassis including an air spring system. The motor vehicle includes a high-voltage on-board electrical system and a high-voltage battery supplying electrical energy to the high-voltage on-board electrical system. The air spring system includes at least one air spring which is supplied with air at a respective required pressure via a pneumatic line connected to an air spring compressor. The air spring compressor is a high-voltage air spring compressor which is supplied with electrical energy via the high-voltage on-board electrical system of the motor vehicle. The air spring is supplied with air exclusively and directly via the high-voltage air spring compressor during operation of the motor vehicle.

First claim

What is claimed is:

1 . A motor vehicle comprising:
an on-board high-voltage electrical system; a high-voltage battery that is configured to supply the high-voltage on-board electrical system with electrical energy; and a chassis comprising an air spring system, wherein the air spring system comprises at least one air spring which is configured to be supplied with air at a respective required pressure via a pneumatic line connected to an air spring compressor, wherein the air spring compressor is a high-voltage air spring compressor which is configured to be supplied with electrical energy via the on-board high-voltage electrical system of the motor vehicle, wherein the air spring is configured to be supplied with air exclusively and directly via the high-voltage air spring compressor during operation of the motor vehicle, wherein a pneumatic circuit of the air spring system is free of a compressed air reservoir.

2 . The motor vehicle according to claim 1 , wherein the motor vehicle is a passenger vehicle.

3 . The motor vehicle according to claim 1 , wherein the motor vehicle is a battery electric vehicle or a semi-electric vehicle.

4 . A motor vehicle comprising:
an on-board high-voltage electrical system; a high-voltage battery that is configured to supply the high-voltage on-board electrical system with electrical energy; and a chassis comprising an air spring system, wherein the air spring system comprises at least one air spring which is configured to be supplied with air at a respective required pressure via a pneumatic line connected to an air spring compressor, wherein the air spring compressor is a high-voltage air spring compressor which is configured to be supplied with electrical energy via the on-board high-voltage electrical system of the motor vehicle,
wherein the air spring is configured to be supplied with air exclusively and directly via the high-voltage air spring compressor during operation of the motor vehicle,
wherein the high-voltage air spring compressor is cooled via a cooling circuit.

5 . The motor vehicle of claim 4 , wherein the motor vehicle comprises one or more electric drives for driving the motor vehicle, wherein the motor vehicle comprises a drive cooling circuit for cooling the one or more electric drives, wherein the high-voltage air spring compressor is thermally coupled to the drive cooling circuit for cooling the high-voltage air spring compressor.

6 . The motor vehicle according to claim 1 , wherein the high-voltage air spring compressor forms a modular component of an electric drive of the motor vehicle.

7 . A motor vehicle comprising:
an on-board high-voltage electrical system; a high-voltage battery that is configured to supply the high-voltage on-board electrical system with electrical energy; and a chassis comprising an air spring system, wherein the air spring system comprises a plurality of air springs, each of which is configured to be supplied with air at a respective required pressure via a respective pneumatic line connected to a respective air spring compressor of a plurality of high-voltage air spring compressors, wherein each air spring compressor of the plurality of high voltage air spring compressors is a high-voltage air spring compressor which is configured to be supplied with electrical energy via the on-board high voltage electrical system of the motor vehicle, wherein each air spring is configured to be supplied with air exclusively and directly via the respective high-voltage air spring compressor during operation of the motor vehicle.

Assignees

• Porsche Ag
• Dr Ing H C F Porsche Aktiengeseiischaft

Inventors

• Witte Thomas

Classifications

• B60L1/003

  to auxiliary motors, e.g. for pumps, compressors · CPC title

• B60G2300/50

  Electric vehicles; Hybrid vehicles · CPC title

• B60G2202/416

  using a pump, e.g. in the line connecting the lower chamber to the upper chamber of the actuator · CPC title

• B60G2202/152

  Pneumatic spring · CPC title

• B60L50/60

  using power supplied by batteries (in combination with fuel cells B60L50/75) · CPC title