Ripper Control System Preventing Steering Damage
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Solution Overview
Problem
Mobile excavation machines face challenges in handling non-homogenous soil and compacted materials, leading to potential damage of ripper implements during steering or high-speed travel, as existing control systems do not effectively manage the engaged state of the ripper during steering operations.
Innovation Solution
A control system that includes a ripper sensor and a steering command sensor, connected to a controller, which determines the engaged state of the ripper and executes actions such as alerting the operator, controlling the ripper position, limiting steering, and managing machine speed to prevent damage by ensuring the ripper is disengaged before steering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the ripper is engaged during steering operations, then the machine can maintain continuous work without disengaging the ripper, but the ripper may be damaged due to steering forces
Solution Approach 1:
The control system checks the ripper engagement status before allowing steering operations to proceed. If the ripper is engaged, the system prevents steering input or alerts the operator, thereby avoiding damage to the ripper while maintaining continuous work capability through proactive prevention rather than reactive protection
Solution Approach 2:
The system continuously monitors the ripper engagement status through sensors and provides feedback to the control system. This real-time feedback enables the controller to detect when the ripper is engaged and accordingly restrict steering operations or alert the operator, creating a closed-loop protection mechanism that prevents damage while allowing continuous operation
2Reliability
If the ripper is disengaged before steering, then the ripper is protected from damage, but work continuity is interrupted
Solution Approach 1:
The control system performs a preliminary check of the ripper engagement status before allowing steering operations. This advance verification ensures the ripper is disengaged or properly secured before steering occurs, preventing damage while minimizing work interruption by avoiding the need for mid-operation disengagement
Solution Approach 2:
The system automatically monitors and manages the ripper engagement status through integrated sensors and control logic, eliminating the need for manual operator intervention to check or adjust the ripper position. This self-service approach ensures proper protection while maintaining work continuity through automated enforcement of safety protocols
3Reliability
If steering is limited when ripper is engaged, then ripper damage is prevented, but machine maneuverability is reduced
Solution Approach 1:
The control system continuously monitors the ripper engagement status and provides real-time feedback to the steering control. When the ripper is engaged, the system automatically limits steering input or alerts the operator, creating an intelligent restriction that protects the ripper while maintaining full maneuverability when the ripper is disengaged through conditional control rather than permanent limitation
Solution Approach 2:
The steering control parameters are dynamically adjusted based on the real-time engagement status of the ripper. The system transitions between different control modes: full steering freedom when the ripper is disengaged and restricted steering or alerts when engaged. This dynamic adaptation ensures ripper protection only when necessary, preserving overall machine maneuverability
Data Source
AI summary
A control system for a machine is disclosed. The system includes a ripper sensor associated with a ripper of the machine configured to generate a signal indicative of a position of the ripper. The system includes a steering command sensor associated with a steering control module of the machine. The steering command sensor is configured to generate a signal indicative of a steering command of the machine. The system further includes a controller configured to receive the signals indicative of the position of the ripper and the steering command of the machine. The controller is configured to execute an action based on the engaged state of the ripper and the steering command of the machine.