Method of forming a quadrant control valve system, quadrant control valve system and hydraulic system

Patent metadata

Field	Value
Publication number	US-12577970-B2
Application number	US-202519228219-A
Country	US
Kind code	B2
Filing date	Jun 4, 2025
Priority date	Jun 27, 2024
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

A method of forming a quadrant control valve system for a hydraulic system is provided. The quadrant control valve system comprises at least one control valve assembly comprising at least one control valve, an electronic valve controller and a control valve sensor system. The method essentially comprises steps of automated quadrant-based load case analysis, automated circuit diagram synthesis and automated controller synthesis as well as implementation of the synthesized circuit diagram and implementation of the synthesized controller.

First claim

The invention claimed is:

1 . A method of forming a quadrant control valve system for a hydraulic system comprising at least one hydraulic consumer controllable via the quadrant control valve system, the method comprising:
performing an automated quadrant-based load case analysis of an entire hydraulic system to be controlled on a basis of requirement data of the hydraulic system; performing a hydraulic circuit diagram synthesis for the quadrant control valve system based on the automated quadrant-based load case analysis, wherein the hydraulic diagram synthesis comprises a role assignment for each control valve of each control valve arrangement in the at least one hydraulic consumer based on the automated quadrant-based load case analysis; performing a controller synthesis for the quadrant control valve system based on the synthesized hydraulic circuit diagram and role assignment; implementing the synthesized circuit diagram of the quadrant control valve system; implementing the synthesized controller in an electronic valve controller of the quadrant control valve system; and controlling at least one hydraulic consumer via the quadrant control valve system.

2 . The method according to claim 1 , wherein a result of the automated quadrant-based load case analysis reflects all load cases occurring in the hydraulic system and all transitions between the load cases in each case in a four-quadrant field per hydraulic consumer, whereby the four quadrants each represent a unique combination of positive or negative load and positive or negative movement of the corresponding hydraulic consumer.

3 . The method according to claim 1 , wherein the hydraulic system comprises at least two hydraulic consumers which are operated exclusively sequentially, wherein an automated load case analysis is carried out separately for each hydraulic consumer.

4 . The method according to claim 1 , wherein the hydraulic system comprises at least two hydraulic consumers, which are also operated in parallel, wherein an automated load case analysis is carried out separately for each hydraulic consumer and an automated load case analysis is additionally carried out for each case in which at least two hydraulic consumers are operated in parallel.

5 . The method according to claim 1 , wherein the hydraulic circuit diagram synthesis is performed automatically and includes automated selection of a number of required control valves for each control valve arrangement.

6 . The method according to claim 1 , wherein each control valve is an electromagnetically actuated 2/2-way control valve and each control valve arrangement comprises at least two control valves.

7 . The method according to claim 1 , wherein the requirement data of the hydraulic system comprise measurement data and/or simulation data.

8 . The method according to claim 1 , further comprising:
reading out of sensor data recorded and stored during operation of the quadrant control valve system; and optimizing the role assignment of individual control valves of the hydraulic consumer and the synthesized controller based on the recorded and stored sensor data.

9 . The method according to claim 8 , wherein reading out and optimizing are carried out automatically during operation of the quadrant control valve system.

10 . The method according to claim 1 , wherein the method is computer-based using a machine learning method.

11 . The method according to claim 10 , wherein the machine learning method includes convolutional neural networks, transformer models, recurrent neural networks and/or knowledge-based methods.

12 . A quadrant control valve system for a hydraulic system, wherein the hydraulic system comprises at least one hydraulic consumer which is controlled via the quadrant control valve system,
wherein the quadrant control valve system comprises a control valve arrangement for each hydraulic consumer of the hydraulic system to be controlled, a control valve sensor system and an electronic valve controller, wherein the quadrant control valve system is formed according to the method of claim 1 .

13 . The quadrant control valve system according to claim 12 , wherein the quadrant control valve system further comprises a memory unit in which sensor data recorded by the control valve sensor system during operation of the quadrant control valve system is stored.

14 . A hydraulic system comprising at least one hydraulic consumer and the quadrant control valve system according to claim 12 .

Assignees

• Hawe Hydraulik Se

Inventors

• Kreutmayr Fabian
• Imlauer Markus

Classifications

• G05B13/027

  using neural networks only · CPC title

• F15B2211/7052

  Single-acting output members · CPC title

• F15B2211/634

  representing a state of a valve · CPC title

• F15B2211/6306

  representing a pressure · CPC title

• F15B2211/632

  representing a flow rate · CPC title