公开(公告)号：US20230302862A1

公开(公告)日：2023-09-28

申请号：US18022021

申请日：2020-08-21

Applicant: Multimatic Inc.

Inventor： Michael Francis Anthony Adamovsky ,  Laurence J. Holt

IPC: B60G15/06 ,  B60G17/005

CPC classification number: B60G15/065 ,  B60G17/005 ,  B60G2202/413 ,  B60G2204/62 ,  B60G2500/30 ,  B60G2204/4605 ,  B60G2202/312

Abstract: A spring configuration comprises a cylindrical damper (5), a primary coil spring (9) with a first predetermined spring rate K1, and a secondary coil spring (11) with a second predetermined spring rate K2, the coil springs arranged about the cylindrical damper (5) in series so as to provide a total combined spring rate KT, an actuator (20) configured to compress and decompress the coil springs (9, 11), a stop (12) configured to deactivate the secondary coil spring (11) at a stop position, such that, when the system is in a first, comfort, mode, the overall suspension spring rate is defined by the series equation 1/KT=1/K1+1/K2, and when the system is in a second, handling, mode, the overall vehicle suspension spring rate is defined by the series equation KT=K1, thus selectively and switchably providing both a low rate, optimal ride comfort setting and a high rate, optimal handling lower ride height setting.