Work Vehicle Implement Shake Control via Real-Time Angle Feedback
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Solution Overview
Problem
Work vehicle implement shake operations often cause vibrations that are uncomfortable for operators and interfere with vehicle operation, as existing systems lack effective control mechanisms to manage the movement of implements relative to loader arms.
Innovation Solution
A system and method that utilize a sensor to monitor the angle of the implement relative to the loader arm during shake operations, determining differentials between monitored and average angles, and adjusting the duty cycle or amplitude of the shake operation to maintain optimal angles and reduce vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If implement shake operation is performed to remove accumulated materials, then cleaning effectiveness is improved, but vehicle vibrations increase causing operator discomfort and operational interference
Solution Approach 1:
The system employs sensors to detect implement position and angle in real-time during shake operations, feeding this data back to the controller. The controller dynamically adjusts hydraulic valve control based on this feedback to optimize shaking effectiveness while minimizing harmful vibrations that transmit to the vehicle body and operator cabin.
Solution Approach 2:
The system dynamically adjusts the shake operation parameters including duty cycle and amplitude based on real-time sensor data. By making the shake operation adaptive rather than fixed, the system can maintain effective cleaning while reducing vibrations when implement position suggests lower vibration risk, thereby resolving the contradiction between cleaning effectiveness and vibration reduction.
2Productivity
If implement shake amplitude is increased to improve cleaning, then material removal effectiveness is improved, but vibration transmission to vehicle increases
Solution Approach 1:
The system implements periodic shake operations with varying amplitudes and duty cycles rather than continuous high-amplitude shaking. By using periodic action with optimized timing and duration, the system achieves effective material removal while allowing vibration dissipation between shake cycles, reducing overall vibration transmission to the vehicle structure.
Solution Approach 2:
The controller dynamically changes shake operation parameters including amplitude, frequency, and duty cycle based on sensor feedback. This allows the system to use high amplitude only when necessary for effective cleaning while using lower amplitudes during phases where high vibration would be harmful, thus resolving the contradiction between material removal effectiveness and vibration transmission.
3Productivity
If continuous implement shake operation is performed, then cleaning thoroughness is improved, but operator discomfort and operational interference increase
Solution Approach 1:
The system uses periodic shake operations with controlled duration and intervals rather than continuous shaking. The implement is shaken in cycles with appropriate rest periods, achieving thorough cleaning over time while preventing excessive vibration accumulation that would cause operator discomfort and interfere with vehicle operation.
Solution Approach 2:
While using periodic action, the system maintains cleaning effectiveness by ensuring shake operations are sufficiently frequent and prolonged over the overall cleaning cycle. The continuous monitoring and adjustment ensure that cleaning thoroughness is achieved without requiring uninterrupted high-intensity shaking, thus maintaining operator comfort while preserving cleaning effectiveness.
Data Source
AI summary
A system for controlling the operation of a work vehicle implement during an implement shake operation may include an implement configured to pivotably coupled to a loader arm. A controller may be configured to monitor an angle of the implement relative to the arm during the implement shake operation. Furthermore, the controller may be configured to determine first and second differentials between monitored angles of the implement during first and second cycles of the implement shake operation, respectively, and a predetermined average implement angle. Additionally, the controller may be configured to determine an estimated differential between an anticipated angle of the implement during a third cycle of the implement shake operation and the predetermined angle based on the first and second differentials. Furthermore, the controller may be configured to adjust a duty cycle and/or an amplitude of the third cycle of the implement shake operation based on the estimated differential.