Joystick-ECU Control for Modular Tractor-Coupled Machinery

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Solution Overview

Problem

Agricultural machinery traditionally lacks digital control systems and data collection capabilities, limiting remote operation and feedback, with most systems relying on electro-hydraulic controls and lacking integration with tractor power supplies.

Innovation Solution

A smart control system featuring a joystick with a built-in electronic control unit and telematics module that allows remote operation and data collection, integrating with tractor power and communication systems to provide real-time feedback and scalability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional electro-hydraulic control systems are used in agricultural machinery, then the machinery can be operated with simple controls, but the system lacks digital control capabilities and data collection functionality

Engineering Contradiction:
Improvedigital control capabilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control unit is designed to universally control multiple different agricultural machines through a single interface. The system can adapt to control various implements (plows, cultivators, planters, etc.) by receiving different signal types from the joystick, making the control system multi-functional and versatile without requiring separate control systems for each machine type

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

Solution Approach 2:

An electronic control unit acts as an intermediary between the digital joystick and the electro-hydraulic actuators. This mediator converts digital control signals into appropriate electro-hydraulic commands, bridging the gap between modern digital interfaces and traditional hydraulic systems, thereby enabling digital control capability without completely replacing the existing hydraulic infrastructure

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If digital control systems and data collection electronics are incorporated into agricultural machinery, then the operator can monitor and control the machinery with digital signals, but the machinery becomes more complex and requires additional components

Engineering Contradiction:
Improvedata feedback to operatorVSAvoidelectronics complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The control unit integrates multiple functions into a single device: it serves as the digital control receiver, data processing unit, and communication interface simultaneously. By merging these functions into one compact unit rather than having separate components for each function, the system provides comprehensive data feedback and control capabilities while minimizing the increase in overall system complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system automatically recognizes the type of agricultural implement connected and configures itself to provide appropriate control signals and data feedback. This self-configuration capability eliminates the need for manual setup or complex programming by the operator, allowing the system to adapt to different machines autonomously and reducing the operational complexity despite the enhanced functionality

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If a control system is designed to work with multiple models of agricultural machinery, then the system becomes more versatile, but the control interface must handle various signal types and configurations

Engineering Contradiction:
Improvemachine compatibilityVSAvoidcontrol interface simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The control system dynamically adapts its signal processing and output based on the detected implement type. The control unit can change its operational characteristics in real-time to match the specific requirements of different agricultural machines, providing optimal control for each machine type while maintaining a consistent, simple joystick interface for the operator

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control system segments its functionality into modular components that can be independently configured for different machine types. This modular approach allows the system to handle various signal types and configurations by activating only the relevant segments for each specific implement, maintaining interface simplicity while achieving broad machine compatibility

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4592121A1Smart control system for agricultural machinery that can be coupled to a tractor
Publication Date: 2025.07.30 MELMAK TECH SL
  • EP4592121A1 patent drawingFigure 1
  • EP4592121A1 patent drawing
  • EP4592121A1 patent drawing

AI summary

A system (100) for controlling agricultural machinery from a tractor, comprising an electronic control unit (101) with a microprocessor and memory, located in the machinery and integrating a joystick-type control lever (105), installable in the tractor, composed of an articulated handle and a button panel, which generates electrical impulses translated into orders by the microprocessor. It includes a harness (102) with an electrical connector, a cable for connecting to the lever and a telematic module for collecting data stored by the electronic control unit (101), time and positioning data or data collected from a website. It also has an output connector strip (103) for operating the actuators according to orders from the microprocessor and an input connector strip (104) for connecting sensors to the machinery, and may include an expansion module (106, 107) for connecting the harness (102) with additional actuators/sensors that are incorporated in the agricultural machinery.