Implement Vibration Control via Machine Velocity Comparison
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Solution Overview
Problem
Existing machine implement control systems, such as those described in U.S. Pat. No. 7,117,952, do not consider all factors that could enhance machine efficiency, particularly in terms of machine velocity and implement state, leading to suboptimal operation and potential safety hazards during tasks like digging and dumping.
Innovation Solution
A computer-implemented method and system that uses machine velocity sensors and a controller to compare actual and targeted machine velocities, sending commands to actuators to shake or adjust implements like blades and rippers based on these comparisons, thereby optimizing machine operation and efficiency by addressing slip, slide, and dumping states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If machine velocity control is added to the implement control system, then machine efficiency and safety are improved, but device complexity increases
Solution Approach 1:
The controller is enhanced to perform multiple functions: it not only controls implement positioning and dumping operations but also monitors machine velocity, compares actual velocity to target velocity, and activates vibration modes when velocity deviations are detected. This multi-functionality allows the same controller to manage both positioning and velocity-based vibration activation without adding separate control devices, thereby improving machine efficiency while minimizing the increase in device complexity.
2Productivity
If vibration is activated based on multiple parameters including velocity, then material removal efficiency is improved, but energy consumption increases
Solution Approach 1:
The system continuously monitors machine velocity and compares it to a target velocity, using this feedback to determine when vibration should be activated. Vibration is triggered only when the velocity difference exceeds a threshold, ensuring that energy is consumed only when necessary to improve material removal efficiency, rather than operating continuously or based on single parameters alone.
Solution Approach 2:
The control system dynamically adjusts the vibration activation criteria by considering multiple parameters including machine velocity, implement position, and operational state. By changing the activation parameters from simple on/off based on single conditions to a multi-parameter decision matrix, the system optimizes energy consumption while maintaining high material removal efficiency.
3Object-generated harmful factors
If the implement is shaken during dumping, then material clinging is reduced, but machine stability may be affected
Solution Approach 1:
The vibration mechanism operates in periodic cycles during the dumping operation rather than continuously. The controller activates vibration at specific moments when material clinging is most problematic (detected through velocity and position parameters), allowing the implement to remain stable during other phases of the dumping cycle. This periodic activation reduces material clinging while minimizing disruption to machine stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system improves machine efficiency by ensuring implements operate within targeted velocities, reducing material clinging during dumping, and enhancing safety by preventing undesirable sliding or stalling, thus improving overall machine performance and safety.
Implementation Method 1
an automatic vibration mechanism vibrates the bucket, which may cause material clinging to the bucket to release and fall out
Data Source
AI summary
A system for controlling an implement of a machine is disclosed. The system may have a machine velocity sensor that senses an actual machine velocity and a targeted machine velocity sensor that senses a targeted machine velocity. The system may also have a controller, and an actuator configured to move an implement responsive to commands received from the controller by an actuator controller. The controller may be configured to receive the actual machine velocity from the machine velocity sensor, receive the targeted machine velocity from the targeted machine velocity sensor, compare the actual machine velocity to the targeted machine velocity, and send a command to the actuator controller to shake the implement based on the comparison of the actual machine velocity to the targeted machine velocity.