US 12,202,309 B2
Method for changing a ride height position of a motor vehicle using an actively adjustable chassis
Hermann Hoinkhaus, Burgwedel (DE); and Frank Wolters, Süpplingenburg (DE)
Assigned to Continental Automotive Technologies GmbH, Hannover (DE)
Filed by Continental Automotive Technologies GmbH, Hannover (DE)
Filed on May 18, 2023, as Appl. No. 18/319,707.
Claims priority of application No. 10 2022 204 970.5 (DE), filed on May 18, 2022.
Prior Publication US 2023/0373263 A1, Nov. 23, 2023
Int. Cl. B60G 17/018 (2006.01); B60G 17/016 (2006.01); B60G 17/019 (2006.01)
CPC B60G 17/018 (2013.01) [B60G 17/016 (2013.01); B60G 17/019 (2013.01); B60G 2400/25 (2013.01); B60G 2500/30 (2013.01); B60G 2600/14 (2013.01); B60G 2600/182 (2013.01); B60G 2600/68 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for changing a ride height position of a motor vehicle using an actively adjustable chassis comprising:
measuring a respective relative distance of a vehicle superstructure from a plurality of corresponding wheels with a plurality of spring travel sensors;
transmitting a respective plurality of spring travel signals from the plurality of spring travel sensors to an electronic open-loop and closed-loop control device of the motor vehicle;
passing the plurality of spring travel signals through a frequency filtering in the electronic open-loop and closed-loop control device, the frequency filtering initially comprising a bandpass filtering which splits each of the plurality of spring travel signals into a signal component excited by the wheel and a signal component excited by the vehicle superstructure; and
filtering the signal component excited by the vehicle superstructure, wherein the frequency filtering then comprises an absolute value conversion of the bandpass-filtered spring travel signal and subsequently a low-pass filtering.