Excavator Implement Angle Logic for Automatic Mode Control
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Solution Overview
Problem
Operators of earthmoving excavators require significant skill and experience to perform functions like raking and excavation accurately, and existing technologies lack effective machine-assisted automatic controls that do not complicate the operation.
Innovation Solution
An excavator control architecture that allows the excavating implement to operate in automatics mode based on the implement angle, using actuators and controllers to determine if the angle is within activation or deactivation ranges, enabling seamless mode transitions without additional complexity for the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatics mode is added to assist operator precision, then precision is improved, but device complexity increases
Solution Approach 1:
The automatics mode is designed to activate and deactivate automatically based on the implement angle being within or outside the activation angle, without requiring manual intervention from the operator. The system self-regulates the automatics function according to the operating conditions, thereby providing precision assistance while avoiding additional operational complexity.
Solution Approach 2:
The system uses the implement angle as a key parameter to determine when to activate or deactivate automatics mode. By monitoring changes in the implement angle and comparing it against predefined activation and deactivation angles, the system dynamically adjusts the automatics function to match the operational state, achieving precision where needed without adding complexity to routine operations.
2Productivity
If automatics mode is activated based on implement angle, then productivity is improved, but ease of operation deteriorates
Solution Approach 1:
The automatics mode automatically activates when the implement angle enters the activation angle range and deactivates when it exits the deactivation angle range. This self-regulating mechanism increases productivity by providing precise automatic control during appropriate operations while maintaining ease of operation by eliminating the need for the operator to manually control or monitor the automatics activation.
Data Source
AI summary
An excavator comprises a control architecture having one or more actuators and one or more controllers. The one or more controllers are programmed to execute instructions. The instructions determine if there is a request to operate the excavator boom and the excavating implement in automatics mode. The instructions also receive target design surface data representing a target design surface of an excavating operation. The instructions still further receive an implement angle representing an operating angle of the excavating implement relative to the target design surface. The instructions also determine whether the implement angle is within an activation angle, determine whether the implement angle is outside of a deactivation angle, activate the excavating implement in the automatics mode when the implement angle is within the activation angle and the deactivation angle, and deactivate when the implement angle is outside of the deactivation angle subsequent to the automatics mode activation.