公开(公告)号：US20220010528A1

公开(公告)日：2022-01-13

申请号：US17368979

申请日：2021-07-07

Applicant: Danfoss Power Solutions Inc.

Inventor： Caleb Van De Stroet ,  Austin Hansell

IPC: E02F9/22 ,  F02D29/04 ,  F02B63/06 ,  F15B20/00

Abstract: An anti-stall system to prevent an engine, particularly a low-powered engine, from stalling when encountering a load that the machine is capable of overcoming but due to the nature of the engine, the load encounter would result in a stall. The system includes a hydraulic system in communication with a control system that has one or more sensors that detect, determine, and/or transmit an operational variable. The control system further comprises a plurality of anti-stall blocks having unique configurations, including a first configured to limit output flow upon determination of an engine droop, a second configured to limit output flow based on available engine torque, a third configured to limit output pressure upon rapid engine droop detection, and a fourth configured to prioritize and share output flow between the machine functions. The anti-stall blocks provide for complementary and cooperative configuration to prevent a stall from occurring based on responses to the detection and determination of various dynamic and continuous operational variables in real-time or near real-time with operational parameters.

公开(公告)号：US12065807B2

公开(公告)日：2024-08-20

申请号：US17368979

申请日：2021-07-07

Applicant: Danfoss Power Solutions Inc.

Inventor： Caleb Van De Stroet ,  Austin Hansell

IPC: E02F9/22 ,  F02B63/06 ,  F02D29/04 ,  F15B20/00 ,  E02F9/20

CPC classification number: E02F9/2246 ,  F02B63/06 ,  F02D29/04 ,  F15B20/00 ,  E02F9/2066 ,  F02D2200/101 ,  F15B2211/20523

Abstract: An anti-stall system to prevent an engine, particularly a low-powered engine, from stalling when encountering a load that the machine is capable of overcoming but due to the nature of the engine, the load encounter would result in a stall. The system includes a hydraulic system in communication with a control system that has one or more sensors that detect, determine, and/or transmit an operational variable. The control system further comprises a plurality of anti-stall blocks having unique configurations, including a first configured to limit output flow upon determination of an engine droop, a second configured to limit output flow based on available engine torque, a third configured to limit output pressure upon rapid engine droop detection, and a fourth configured to prioritize and share output flow between the machine functions. The anti-stall blocks provide for complementary and cooperative configuration to prevent a stall from occurring based on responses to the detection and determination of various dynamic and continuous operational variables in real-time or near real-time with operational parameters.