SUSPENSION DE VÉHICULE COMPRENANT UN AMORTISSEUR HYDRAULIQUE RÉGÉNÉRATIF ET UN SYSTÈME DE RÉGLAGE DE L'ASSIETTE DU VÉHICULE

摘要

The suspension (10) comprises: a spring (12) interposed between the body (B) of the vehicle and the wheel (W); a regenerative hydraulic shock-absorbing unit (16) comprising a hydraulic shock-absorber (18) arranged parallel to the spring (12), a motor and pump unit (20) with a volumetric hydraulic machine (22) and an electric machine (24) coupled to the hydraulic machine (22), and an electronic control unit (26) arranged to control the torque of the electric machine (24); a hydraulic actuator (14) arranged in series with the spring (12); a reservoir (66, 54); and a hydraulic circuit (68, 70, 72, 74, 76, 78, 80, 84, 86, 88, 90) connecting to each other the hydraulic shock-absorber (18), the hydraulic machine (22) the hydraulic actuator (14) and the reservoir (66, 54), the hydraulic circuit (68, 70, 72, 74, 76, 78, 80, 84, 86, 88, 90) comprising valve means (76, 84, 86) for controlling the flow of a working fluid between the hydraulic shock-absorber (18), the hydraulic machine (22), the hydraulic actuator (14) and the reservoir (66, 54).