公开(公告)号：US20240309611A1

公开(公告)日：2024-09-19

申请号：US18603552

申请日：2024-03-13

申请人： CNH Industrial Italia S.p.A.

发明人： SANTOLO ANTONIO CASILLO ,  ADRIANO GARRAMONE ,  ANTONIO VENEZIA ,  STEFANO LIBERTI ,  ANDREA GRAVILI

IPC分类号： E02F9/22 ,  B60K23/00 ,  B60K26/00 ,  B60K31/02

CPC分类号： E02F9/2253 ,  B60K23/00 ,  B60K26/00 ,  B60K31/02 ,  E02F9/2246 ,  E02F9/2296

摘要： A method of controlling a propulsion system of a work or agricultural vehicle, wherein the propulsion system includes a prime mover and a hydraulic transmission including a variable displacement pump configured to be driven in rotation by the prime mover and a variable displacement hydraulic motor, operatively connected to the pump by means of a forward hydraulic line and a return one, the method providing for an ECO operating mode in which the accelerator controls the displacement of the hydraulic pump while the engine is operated at a fixed speed and in which, in said ECO operating mode, there is a step for acquiring a current speed of the vehicle (Step 1) and a limiting step (Step 3) of said displacement of the hydraulic pump when said current speed is lower than a predetermined speed threshold.