公开(公告)号：US11536007B2

公开(公告)日：2022-12-27

申请号：US16751515

申请日：2020-01-24

Applicant: Caterpillar Inc.

Inventor： Jeffrey Berry

IPC: E02F9/22 ,  E02F9/20 ,  B60K17/02 ,  B60K17/35 ,  B60K17/356

Abstract: A system for proactively controlling rimpull limit of a machine includes a hydraulic system having a lift cylinder to move an implement; a lift cylinder pressure sensor that senses a hydraulic pressure of the lift cylinder and responsively produces a lift cylinder pressure signal; and a controller in operable communication with the power train and the lift cylinder pressure sensor. The controller is configured to receive the lift cylinder pressure signal; determine the rimpull limit based at least in part upon the lift cylinder pressure signal; and adjust the torque of the power train to the rimpull limit.

公开(公告)号：US10215119B2

公开(公告)日：2019-02-26

申请号：US15083761

申请日：2016-03-29

Applicant: Caterpillar Inc.

Inventor： Barry Mei ,  Jeffrey Berry

IPC: B60W10/06 ,  F02D41/10 ,  F02D41/30 ,  F02D41/02 ,  E02F9/20 ,  E02F9/26 ,  E02F3/34

Abstract: Operating a machine including a continuously variable transmission (CVT) includes operating an engine of the machine at a lower engine speed, receiving data indicative of an expected increase in load on the engine, and commanding increasing the engine speed responsive to the data. The engine is operated at a higher engine speed responsive to the commanded increase, with the operation at the higher engine speed being initiated proactively so as to limit retarding a ground speed of the machine. Related control logic and machine structure is also disclosed.

公开(公告)号：US20170284325A1

公开(公告)日：2017-10-05

申请号：US15083761

申请日：2016-03-29

Applicant: Caterpillar Inc.

Inventor： Barry Mei ,  Jeffrey Berry

IPC: F02D41/10 ,  E02F9/26 ,  E02F9/20 ,  F02D41/30 ,  F02D41/02

CPC classification number: F02D41/107 ,  E02F3/34 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/26 ,  F02D31/001 ,  F02D31/007 ,  F02D41/021 ,  F02D41/0215 ,  F02D41/3005 ,  F02D2041/1412 ,  F02D2400/12

Abstract: Operating a machine including a continuously variable transmission (CVT) includes operating an engine of the machine at a lower engine speed, receiving data indicative of an expected increase in load on the engine, and commanding increasing the engine speed responsive to the data. The engine is operated at a higher engine speed responsive to the commanded increase, with the operation at the higher engine speed being initiated proactively so as to limit retarding a ground speed of the machine. Related control logic and machine structure is also disclosed.