Signal Modulation for Third-Party Work Machine Attachments
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Solution Overview
Problem
Existing work machines often struggle to control third-party or off-brand attachments due to incompatible control signal formats, leading to inefficient hydraulic flow and potential damage to hydraulic cylinders.
Innovation Solution
The Electronic Control and Signal Modulation System (ECSMS) receives and converts control signals from various formats (PWM, analog, digital, etc.) to generate appropriate output signals for third-party attachments, ensuring simultaneous power and control, thereby enabling the use of off-brand attachments with existing work machine control systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the work machine uses a fixed control signal format, then the control system is simple and reliable, but it cannot control third-party attachments with different signal formats
Solution Approach 1:
The patent introduces an intermediary device (signal converter or adapter) that translates between different control signal formats. This intermediary component enables compatibility between the work machine's control system and third-party attachments without requiring modification of the original control system, thus resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The patent employs parameter changes by modifying control signal characteristics (voltage levels, pulse width, frequency) to match different attachment requirements. The control system dynamically adjusts signal parameters based on the attached implement type, enabling versatile compatibility while maintaining a relatively simple base control architecture.
2Reliability
If hydraulic flow is continuously supplied to third-party attachments, then the attachments can operate reliably, but it causes inefficient hydraulic flow and potential damage to cylinders
Solution Approach 1:
The patent implements periodic action by supplying hydraulic flow only during the periods when the attachment is actually in use or when control signals are detected. The system uses intermittent or demand-based hydraulic flow activation rather than continuous supply, which maintains attachment reliability during operation while preventing energy waste and cylinder damage during idle periods.
Solution Approach 2:
The patent employs feedback mechanisms where the control system monitors attachment status and control signal activity to dynamically regulate hydraulic flow. When no control signals are detected or the attachment is idle, the system reduces or stops hydraulic supply, providing feedback-based optimization that balances reliability with energy efficiency.
Data Source
AI summary
In general, systems and methods for controlling work machine implements are described. In one embodiment, a system for controlling a hydraulically-powered third-party work machine implement includes a microcontroller-based conversion module capable of transforming implement control signals from their native format (e.g., PWM) to a signal format required by the implement to function properly (e.g., digital). A hydraulic flow activation signal can be simultaneously generated and transmitted to the implement so that hydraulic flow occurs only when control signals are received and the implement is caused to be in motion or otherwise activated.