Work Vehicle Dual Steering Device Automatic Disable Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The usability of the second steering device in work vehicles is hindered by the difficulty in selecting its use or non-use with an operating switch, leading to cumbersome operations for operators.
Innovation Solution
A work vehicle equipped with a seating sensor and a control unit that disables the steering operation with the second steering device when the operator is not detected to be sitting in the driver's seat, facilitating the selection process and preventing unintended operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the second steering device is provided inside the cabin to improve work efficiency, then productivity is improved, but device complexity increases and ease of operation deteriorates due to the need for operating switch selection
Solution Approach 1:
The system automatically detects operator presence via the seating sensor and autonomously determines whether to enable or disable the second steering device, eliminating the need for manual switch selection by the operator. This self-service approach resolves the contradiction by maintaining the dual-steering capability for productivity while removing the operational burden of manual switching.
Solution Approach 2:
The seating sensor performs preliminary detection of operator presence before the operator needs to use the steering device. The control unit preemptively enables or disables the second steering device based on this preliminary detection, so that when the operator attempts to use the device, it is already in the correct state, eliminating the need for manual switching during operation.
2Ease of operation
If the second steering device is always enabled for convenient operation, then ease of operation is improved, but reliability deteriorates due to potential unintended operations when operator is absent
Solution Approach 1:
The seating sensor provides continuous feedback to the control unit about operator presence. The control unit uses this feedback to dynamically adjust the enable/disable state of the second steering device, ensuring it is enabled only when the operator is present. This feedback mechanism maintains reliability by preventing accidental operations while preserving ease of operation when appropriate.
Solution Approach 2:
The operational state of the second steering device changes dynamically based on real-time operator presence detection. The device transitions between enabled and disabled states according to whether the operator is seated, creating a dynamic safety mechanism that adapts to operational conditions rather than relying on static manual switching.
3Adaptability or versatility
If manual switching between first and second steering devices is required, then adaptability is improved, but ease of operation deteriorates due to troublesome switch selection
Solution Approach 1:
The system performs automatic adaptation to operational context by detecting operator presence and autonomously selecting which steering device should be active. This eliminates the manual adaptability switching burden while preserving the versatility of having both steering devices available, as the system automatically determines the appropriate configuration based on seating detection.
Data Source
AI summary
A work vehicle includes a cab, a driver's seat disposed inside the cab, a first steering device, a second steering device, a seating sensor, and a control unit. The first steering device is disposed in front of the driver's seat. The first steering device is configured to perform a steering operation of the vehicle. The second steering device is disposed to a side of the driver's seat. The second steering device is configured to perform a steering operation of the vehicle. The seating sensor detects whether or not an operator is sitting in the driver's seat. The control unit disables the steering operation with the second steering device when the seating sensor detects that the operator is not sitting in the driver's seat.