Remote Work Vehicle Control for Reversible Forward Direction
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Solution Overview
Problem
The positional relationship between the traveling machine body and the work device varies depending on the type of work device, leading to confusion and erroneous operations during remote operations, especially when the work direction is reversed.
Innovation Solution
A work vehicle configuration that includes a traveling machine body, a work machine, a remote operation device, and an operation portion capable of setting the direction of the forward operation to either a first direction from the work machine toward the traveling machine body or a second direction from the traveling machine body toward the work machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the attachment position between the traveling machine body and the work device is kept the same regardless of work device type, then the device structure is simplified, but the operator experiences confusion and fatigue due to reversed operation directions
Solution Approach 1:
The patent applies dynamics by making the attachment position configurable rather than fixed. The control unit dynamically adjusts the attachment position between the traveling machine body and work device based on the type of work device detected, allowing the system to adapt its configuration to match the operational characteristics of different work devices, thereby maintaining consistent forward operation directions.
Solution Approach 2:
The patent changes the parameter of attachment position based on work device type. When a work device requiring backward work is detected, the system modifies the attachment position configuration to ensure the forward operation direction on the remote controller aligns with the actual work direction, preventing operator confusion and fatigue.
2Device complexity
If the forward operation direction on the remote controller is fixed, then the controller design is simplified, but erroneous operations occur when the work direction needs to be reversed
Solution Approach 1:
The remote controller's forward operation direction is made dynamic rather than fixed. The control unit receives detection results about the work device type and dynamically adjusts which physical direction on the remote controller corresponds to the forward operation, ensuring it always aligns with the actual work direction regardless of whether the work device is positioned forward or backward relative to the traveling machine body.
Solution Approach 2:
The system implements feedback by detecting the work device type and using this information to adjust the forward operation direction setting on the remote controller. The control unit continuously monitors the work device configuration and modifies the controller's directional mapping accordingly, preventing erroneous operations caused by mismatched forward/backward directions.
Data Source
AI summary
A work vehicle includes: a traveling machine body; a work machine connected to the traveling machine body; a remote operation device that operates the traveling machine body; and an operation portion capable of setting a direction of a forward operation of the remote operation device to either a first direction from the work machine toward the traveling machine body or a second direction from the traveling machine body toward the work machine.