公开(公告)号：US20240254976A1

公开(公告)日：2024-08-01

申请号：US18159935

申请日：2023-01-26

Applicant: Dana Motion Systems Italia S.R.L.

Inventor： Luca RICCO ,  Francesco CANESTRI ,  Andrea LUCCHI

IPC: F04B1/24 ,  F04B1/324

CPC classification number: F04B1/24 ,  F04B1/324 ,  F04B2201/1202 ,  F04B2201/1206

Abstract: Methods and systems for a variable displacement bent axis piston motor are described. In one example, a variable displacement bent axis piston motor comprises a bent axis unit (BAU) rotary group including a cylinder block coupled to a drive shaft of the bent axis piston motor, and an electric actuator coupled to a servo piston of the bent axis piston motor, wherein a displacement of the BAU rotary group is controlled by an inclination angle between the drive shaft and a valve plate of the BAU rotary group coupled to the cylinder block, the inclination angle controlled by the servo piston, the servo piston controlled by the electric actuator. The servo piston is controlled by the electric actuator based a feedback control system, which may switch between various control strategies for adjusting the inclination angle based on different driving scenarios.