Electronic Valve Controller for Reconfigurable Pneumatic Motion Control

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Solution Overview

Problem

Existing pneumatic systems lack flexibility and control options, leading to limited ability to implement different technical applications, and are hindered by high costs and installation efforts.

Innovation Solution

An electronic valve controller that allows loading and execution of different applications for controlling and regulating pneumatic movement tasks, utilizing executable program code that can be generated and distributed to execution units, enabling real-time control and regulation based on internal and external measurement signals and process variables.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If preconfigured valve functions are used to simplify control, then ease of operation is improved, but adaptability deteriorates

Engineering Contradiction:
Improveease of operationVSAvoidadaptability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The valve control system transitions from static preconfigured functions to dynamic reconfigurable functions. The valve terminal can load different applications and reconfigure valve functions in real-time based on measurement signals and process variables, allowing the system to adapt to different technical applications while maintaining ease of operation through automated control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters dynamically by loading different applications with specific control commands for valve arrangements. The valve terminal can modify control parameters, timing, and valve sequences based on measured process variables, enabling the same hardware to perform multiple different technical applications without physical reconfiguration.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple valve functions are preconfigured to increase versatility, then adaptability is improved, but device complexity deteriorates

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The valve terminal is designed as a universal control device that can perform multiple valve functions through software applications rather than requiring separate dedicated hardware for each function. A single valve terminal can load different applications to control different valve arrangements, achieving multi-functionality without increasing physical device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of duplicating physical valve hardware for different functions, the system uses software copies of control logic and applications. Different technical applications are implemented as executable program code that can be loaded onto the same valve terminal, providing functional duplication without physical duplication.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If custom valve configurations are implemented to meet specific application requirements, then adaptability is improved, but ease of manufacture deteriorates

Engineering Contradiction:
ImproveadaptabilityVSAvoidease of manufacture
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Different valve configurations and control logic are prepared in advance as precompiled applications. These applications can be directly loaded onto the valve terminal without requiring on-site configuration or programming, simplifying the manufacturing and deployment process while maintaining adaptability to different technical applications.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of manufacturing custom-configured valve hardware for each application, the system uses disposable or reusable software applications that can be quickly loaded and discarded. This approach is more economical than manufacturing custom hardware configurations for each specific application.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentEP3371662B1Application-based control of pneumatic valve assemblies
Publication Date: 2021.10.06 FESTO AG & CO KG
  • EP3371662B1 patent drawingFigure 1
  • EP3371662B1 patent drawingFigure 2
  • EP3371662B1 patent drawingFigure 3

AI summary

The invention relates to an electronic valve controller (1) for the open-loop and closed-loop control of a valve island (VI), which comprises four or eight valve disks (VS) having pneumatic valves for performing a motion task. According to the invention, applications (A) for the open-loop and closed-loop control of the valve island (VI) can be loaded onto the electronic valve controller (1). The invention further relates to a valve assembly (VI, VS), which is controlled in an open-loop and closed-loop manner by an electronic valve controller (1), and to a corresponding method and to a system.