PTO Generator Work Management for Monitored Machine Operation

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Solution Overview

Problem

Existing work management systems for working machines with generators fail to effectively operate and manage working devices using generator power, as they do not adequately obtain and utilize operation information for efficient management.

Innovation Solution

A work management system that includes a power transmission mechanism to transmit power from the PTO shaft and motor to the working device, a PTO shifter to control rotating speed, and a controller to manage the working device based on obtained operation information, displayed on a display device, with a coupler device for attachment to the working device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the working device is operated by the generator power, then the productivity and energy utilization are improved, but the device complexity and control difficulty increase

Engineering Contradiction:
Improveworking efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system incorporates an information acquisition device that collects operation information from the working device, and a controller that uses this feedback to automatically adjust and optimize the operation of the working device, thereby improving productivity while managing system complexity through intelligent control

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The generator serves multiple functions: it provides power to the working device, charges the battery, and supplies power to the controller and information acquisition device, reducing the need for separate power sources and simplifying the overall system architecture

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

2Measurement precision

If operation information is obtained and used for management, then the management precision and working optimization are improved, but the device complexity increases

Engineering Contradiction:
Improveoperation information accuracyVSAvoidmanagement system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The working device performs self-monitoring through the information acquisition device, automatically collecting and providing operation information to the controller without requiring external monitoring systems, thereby improving measurement precision while minimizing additional complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The information acquisition function is integrated into the existing working device structure, combining multiple functions (power generation, power distribution, operation monitoring, and control) into a unified system rather than adding separate independent systems

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3646694B1Work management system for a working machine
Publication Date: 2023.10.11 KUBOTA CORP
  • EP3646694B1 patent drawingFigure 1
  • EP3646694B1 patent drawingFigure 2
  • EP3646694B1 patent drawingFigure 3

AI summary

To operate a working device with power of a generator, obtain operation information in operation of the working device, and manage working of the working device based on the obtained operation information. A work management system (100) includes a generator (15) attached to a structure body (25) that is provided to a transmission case (10) of a working machine (1), configured to be driven by power transmitted from a PTO shaft (19), and configured to transmit power to a working device (3) provided in the working machine, an information obtaining portion (81) configured to obtain operation information representing operation of the working device that is activated by the power from the generator, a work management portion (82) configured to manage working of the working device based on the operation information obtained by the information obtaining portion, and a controller portion (83) configured to control the working device based on the operation information obtained by the information obtaining portion.