Top Link Actuator Control for Precise Implement Angle Adjustment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing implement linkages for agricultural machines lack advanced control mechanisms for the top link assembly, limiting efficient and precise adjustment of implement angles and heights, particularly in response to real-time operational changes and user inputs.

Innovation Solution

A top link assembly with an actuator switchable between multiple operation states, controlled by an operation control device that receives electronic signals through a data bus, allowing for precise adjustment of implement angles and heights via hydraulic, electric, or pneumatic actuators, and integrated with telematics devices for real-time monitoring and control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual operation or basic hydraulic control is used for the top link assembly, then the device complexity is reduced, but the control precision and responsiveness to real-time operational changes deteriorate

Engineering Contradiction:
Improvecontrol precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical adjustment mechanisms with an electronically controlled actuator system. The actuator receives electronic control signals and automatically adjusts the top link position, eliminating the need for manual operation while achieving precise control through electronic signaling and automated actuation mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The operation control device monitors the actual operation state of the top link assembly and compares it with the target state. Based on this feedback, the control device sends appropriate control signals to the actuator to achieve the desired operation state, enabling closed-loop control for enhanced precision and responsiveness.

Inventive Principle:
Principle #23Feedback

2Productivity

If advanced electronic control systems are implemented for real-time monitoring and adjustment, then the operational efficiency and responsiveness improve, but the device complexity and cost increase

Engineering Contradiction:
Improveoperational efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The operation control device serves multiple functions: it receives electronic operation state setting signals, determines target operation states, monitors actual operation states, and sends control signals to the actuator. This multi-functional integration achieves advanced control capabilities while minimizing the number of separate components required.

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

Solution Approach 2:

The system enables the top link assembly to automatically adjust its own operation state in response to control signals without requiring constant manual intervention. The actuator self-regulates the position based on electronic commands, and the system can autonomously maintain optimal operational parameters.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the actuator is designed with multiple operation states for different operational conditions, then the adaptability to various field conditions improves, but the control system complexity increases

Engineering Contradiction:
ImproveadaptabilityVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The actuator is designed with the capability to operate in multiple discrete operation states, allowing the top link assembly to adapt to different field conditions such as varying implement weights, ground conditions, and operational requirements. The system dynamically transitions between states based on received control signals, providing versatility without requiring entirely separate mechanical systems for each condition.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4699424A1Top link assembly for an implement linkage for attaching an implement, method of operation, implement linkage for attaching an implement, and agricultural machine
Publication Date: 2026.02.25 KVERNELAND GRP MECHATRONICS BV
  • EP4699424A1 patent drawingFigure 1
  • EP4699424A1 patent drawingFigure 2
  • EP4699424A1 patent drawingFigure 3

AI summary

The present invention refers to a top link assembly (20) for an implement linkage for attaching an implement, comprising: an actuator (21) switchable between a first and second operation state from a plurality of operation states, an actuator control device (24) configured to control power supply to the actuator (21); and an operation control device (25) having an operation control device input (27) for receiving electronic signals and an operation control device output (27) for sending electronic signals. With respect to the plurality of operations states, the first operation state is characterized by at least one first operation state parameter, the second operation state being different from the first operation state is characterized by at least one first operation state parameter, and the at least one second operation state parameter is different from the at least one first operation state parameter. The operation control device (25) is operable to (i) receive an electronic operation state setting signal through the operation control device input (27), the electronic operation state setting signal comprising a request for switching the actuator (21) to the second operation state, and (ii) in response to the request for switching, control operation of the actuator control device (24) for switching of the actuator (21) from the first operation state to the second operation state. Further, an implement linkage for attaching an implement, an agricultural machine, and a method for operating a top link assembly of an implement linkage are provided.