US 12,409,698 B2
Method for operating an active chassis of a motor vehicle
Christoph Lenniger, Renningen (DE)
Assigned to Dr. Ing. h.c. F. Porsche Aktiengesellschaft, (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Jan. 26, 2024, as Appl. No. 18/423,392.
Claims priority of application No. 10 2023 107 449.0 (DE), filed on Mar. 24, 2023.
Prior Publication US 2024/0317012 A1, Sep. 26, 2024
Int. Cl. B60G 17/08 (2006.01); B60G 17/052 (2006.01); B60L 50/60 (2019.01)
CPC B60G 17/08 (2013.01) [B60G 17/052 (2013.01); B60L 50/60 (2019.02); B60G 2202/152 (2013.01); B60G 2202/24 (2013.01); B60G 2202/412 (2013.01); B60G 2202/413 (2013.01); B60G 2500/10 (2013.01); B60G 2500/205 (2013.01); B60G 2600/70 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for operating an active chassis of a motor vehicle, wherein the active chassis includes (i) a control device for controlling the chassis; (ii) at least one damper device having a hydraulic cylinder and a hydraulic piston pressurized on both sides by a hydraulic fluid; (iii) a pump for generating a pressure via the hydraulic piston; (iv) at least one gas spring having a pneumatic cylinder and a pneumatic piston pressurized with a pneumatic gas on both sides; and (v) a compressor for generating a pressure via the pneumatic piston,
wherein in an event of a command to or from the control device for a request for an increased resulting force of the active chassis with the aid of an increased pressure level in the gas spring, the control device executes the following steps:
a. by means of the pump, increasing the pressure in the damper device;
b. by means of the compressor, increasing pressure in the gas spring; and
c. upon reaching the requested increased resulting force, reducing the pressure in the damper device, such that the increased resulting force is adjusted as required using the increased pressure level in the gas spring.