公开(公告)号：US11754161B1

公开(公告)日：2023-09-12

申请号：US17653857

申请日：2022-03-07

申请人： DANA ITALIA S.R.L.

发明人： Lorenzo Dalla Palma ,  Fabio Gunsch ,  Mario Gelmini ,  Giovanni Profumo

IPC分类号： F16H61/66 ,  F16H47/04

CPC分类号： F16H47/04 ,  F16H61/66 ,  F16H2047/045 ,  F16H2061/661 ,  F16H2061/6603 ,  F16H2200/2005

摘要： Methods and systems for a hydromechanical transmission are provided herein. In one example, the transmission operating method includes asynchronously shifting between a first pair of drive ranges in the transmission via operation of two clutches and a variable displacement hydraulic pump in a hydrostatic assembly. In the method, asynchronously shifting between the two drive ranges includes a plurality of phases that include a swiveling phase where a speed of the hydrostatic assembly is inverted.

公开(公告)号：US11719334B1

公开(公告)日：2023-08-08

申请号：US17804054

申请日：2022-05-25

申请人： DANA ITALIA S.R.L.

发明人： Lorenzo Dalla Palma ,  Fabio Gunsch ,  Mario Gelmini

IPC分类号： F16H61/4035 ,  F16H47/04 ,  F16H61/42 ,  F16H61/421

CPC分类号： F16H61/4035 ,  F16H47/04 ,  F16H61/42 ,  F16H61/421 ,  F16H2200/0039 ,  F16H2200/0086 ,  F16H2200/2005 ,  F16H2200/2041

摘要： Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the working zone is determined based on a torque constraint of the hydrostatic assembly. The transmission system includes the hydrostatic assembly that includes the hydraulic motor that is hydraulically coupled in parallel with a variable displacement hydraulic pump and a gearbox mechanically coupled to the hydrostatic assembly and including one or more clutches.

公开(公告)号：US11971092B2

公开(公告)日：2024-04-30

申请号：US17653856

申请日：2022-03-07

申请人： DANA ITALIA S.R.L.

发明人： Lorenzo Dalla Palma ,  Fabio Gunsch ,  Mario Gelmini ,  Giovanni Profumo

IPC分类号： F16H47/04

CPC分类号： F16H47/04 ,  F16H2047/045 ,  F16H2200/0039 ,  F16H2200/0086

摘要： Methods and systems for a hydromechanical transmission. In one example, the transmission system includes a hydrostatic assembly including a variable displacement hydraulic pump and a hydraulic motor and a planetary gearset coupled to a multi-speed gearbox, a hydraulic motor, and an output shaft via separate gears and shafts. In the system the variable displacement hydraulic pump is coupled to an input of the multi-speed gearbox, the multi-speed gearbox includes one or more clutches and is coupled to a prime mover and the output shaft is designed to couple to an axle.

公开(公告)号：US11841080B2

公开(公告)日：2023-12-12

申请号：US17449247

申请日：2021-09-28

申请人： DANA ITALIA S.R.L.

发明人： Lorenzo Dalla Palma ,  Fabio Gunsch ,  Alessandro Dilisa

IPC分类号： F16H61/4096 ,  B60K6/12 ,  F16H47/04 ,  B60K17/10 ,  F16H61/06 ,  B60K17/28 ,  F16H61/00 ,  F16H61/12 ,  F16H61/21

CPC分类号： F16H61/4096 ,  B60K6/12 ,  B60K17/10 ,  B60K17/28 ,  F16H47/04 ,  F16H61/061 ,  F16H61/21 ,  F16H2061/0012 ,  F16H2061/0034 ,  F16H2061/124

摘要： Methods and systems for a hydromechanical transmission. In one example, a vehicle system includes a hydromechanical transmission with a power-take off (PTO) that is designed to rotationally couple to an implement. The vehicle system further includes an engine coupled to the hydromechanical transmission and a power-management control unit configured to, during a drive or coast condition, cause the power-management control unit to: determine a net available power for the hydromechanical transmission and manage a power flow between the hydromechanical transmission, a drive axle, and the implement based on the net available power.

公开(公告)号：US12104694B2

公开(公告)日：2024-10-01

申请号：US17804056

申请日：2022-05-25

申请人： DANA ITALIA S.R.L.

发明人： Lorenzo Dalla Palma ,  Fabio Gunsch ,  Mario Gelmini

IPC分类号： F16H61/40 ,  F16H47/04 ,  F16H61/4035 ,  F16H61/42 ,  F16H61/421

CPC分类号： F16H61/4035 ,  F16H47/04 ,  F16H61/42 ,  F16H61/421 ,  F16H2200/0039 ,  F16H2200/0086 ,  F16H2200/2005 ,  F16H2200/2041

摘要： Methods and systems for transmission control are provided. In one example, a transmission system operating method includes maintaining a displacement set-point of a variable displacement hydraulic motor in a hydrostatic assembly within a working zone, where at least a portion of a boundary of the working zone is determined based on a kinematic constraint of the hydrostatic assembly. the transmission system includes the hydrostatic assembly that includes the variable displacement hydraulic motor that is hydraulically coupled in parallel with a variable displacement hydraulic pump and a gearbox mechanically coupled to the hydrostatic assembly and including one or more clutches.

公开(公告)号：US12071987B2

公开(公告)日：2024-08-27

申请号：US17663813

申请日：2022-05-17

申请人： DANA ITALIA S.R.L.

发明人： Alessandro Di Lisa ,  Mario Gelmini ,  Claudio Angeloni ,  Fabio Gunsch

IPC分类号： F16D48/06 ,  F16D48/02

CPC分类号： F16D48/062 ,  F16D48/066 ,  F16D2048/0221 ,  F16D2048/0266 ,  F16D2500/10412 ,  F16D2500/3022 ,  F16D2500/3024 ,  F16D2500/70418

摘要： Methods and systems for operating a plurality of electrical loads are described. In one example, the systems include electrical circuits for operating solenoid valves of a transmission that may be operated to simultaneously control two or more clutches for engaging and disengaging transmission gears. The systems and method may reduce hardware costs.