Dozer Implement Roll Control Using Filtered Chassis Roll Changes
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Solution Overview
Problem
Operators of dozers face challenges in smoothing out uneven terrain due to abrupt changes in the roll angle of the chassis, leading to inefficient use of the machine, premature wear of components, and resource consumption.
Innovation Solution
A method and system that utilize a controller to receive a command for a target roll angle of an implement, detect changes in the chassis roll angle, filter these changes to pass low frequency changes and remove high frequency changes, and adjust the target roll angle accordingly to smooth out the terrain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the operator manually adjusts the blade position to account for abrupt lateral movements of the chassis, then the terrain surface can be smoothed, but the operation becomes time-consuming and causes premature wear of components
Solution Approach 1:
The patent replaces the manual mechanical adjustment system with an automated control system that uses sensors to detect chassis roll angle and automatically adjusts the implement position. This substitution eliminates the need for continuous manual operator intervention, reducing both time consumption and physical wear on components while maintaining terrain smoothing effectiveness
Solution Approach 2:
The system implements a feedback mechanism where sensors continuously monitor the chassis roll angle and provide real-time data to the controller. The controller automatically adjusts the implement position based on this feedback, enabling precise terrain smoothing without manual intervention and reducing operational time and component wear
2Manufacturing precision
If the operator excessively adjusts the blade position to account for chassis movements, then the terrain surface may be smoothed, but the components experience premature wear and resources are consumed
Solution Approach 1:
The automated control system replaces manual adjustment mechanisms, enabling precise control that avoids excessive adjustments. The system uses sensors and controllers to make only the necessary adjustments, reducing unnecessary component wear and resource consumption while maintaining effective terrain smoothing
Solution Approach 2:
The system changes the control parameter from manual operator judgment to automated sensor-based detection of chassis roll angle. This parameter change enables precise, objective control that avoids excessive adjustments and reduces component wear while maintaining terrain smoothing effectiveness
3Ease of operation
If the operator does not timely adjust the blade position, then the operation is simpler, but the terrain surface remains uneven requiring additional passes
Solution Approach 1:
The automated control system replaces manual operation with automatic sensor-based control, maintaining operational simplicity while dramatically improving productivity. The system continuously monitors and adjusts the implement position without requiring operator attention, enabling effective terrain smoothing in a single pass and eliminating the need for multiple operations
Data Source
AI summary
A controller may receive a command indicating a target roll angle, of an implement of the machine, relative to a chassis of the machine. The controller may detect a change in a roll angle of the chassis of the machine. The controller may filter the change to pass a low frequency change and remove a high frequency change. The controller may cause the target roll angle to be adjusted based on the low frequency change.