公开(公告)号：US12059937B2

公开(公告)日：2024-08-13

申请号：US17499693

申请日：2021-10-12

Applicant: DRiV Automotive Inc.

Inventor： Peter Boon ,  Bert Vandersmissen ,  Frank Gommans

IPC: B60G17/00 ,  B60G17/015 ,  B60G17/0165 ,  B60G17/019

CPC classification number: B60G17/0165 ,  B60G17/0152 ,  B60G17/01908 ,  B60G2202/414 ,  B60G2400/10 ,  B60G2400/252 ,  B60G2400/821 ,  B60G2401/16 ,  B60G2500/11 ,  B60G2800/012 ,  B60G2800/014

Abstract: A suspension system and associated control methods for improving comfort by disabling passive pitch stiffness in the suspension system by holding open electromechanical comfort valves positioned in a manifold assembly of the suspension system. The manifold comfort valves are held open to disable the passive pitch stiffness of the suspension system if the vehicle is traveling down a rough road or if the vehicle is approaching a discrete road event like a pot-hole or speed bump. Deactivation of the passive pitch stiffness of the suspension system is determined based on road classification information, saved road events, and/or real-time vehicle data from on-board sensors. The suspension system therefore reduces pitch angles during pitch events induced by inertial forces caused by driver inputs and disables the pitch stiffness when the pitch event is caused by road inputs.