Work Vehicle Steering Mode Control for Neutral Deviation Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing work vehicles face issues where travel devices set to a neutral orientation can deviate due to external forces or hydraulic leaks, leading to neutral deviation states that operators may not notice, affecting work efficiency.
Innovation Solution
A work vehicle equipped with a detection unit to monitor the orientation of front and rear travel devices, issuing notifications when a neutral deviation exceeds a threshold, allowing operators to recognize and correct the issue without interrupting work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the travel device is set to neutral orientation without continuous monitoring, then the device can operate without additional detection systems, but the operator cannot recognize neutral deviation states that occur due to external forces or hydraulic leaks
Solution Approach 1:
The patent implements a feedback mechanism where the detection unit continuously monitors the orientation of the travel device and provides real-time information to the notification unit. When neutral deviation is detected, the system alerts the operator through visual or audible signals, creating a closed-loop feedback system that ensures reliable detection without requiring constant operator attention
Solution Approach 2:
The system performs self-monitoring of the travel device orientation through the detection unit, which automatically detects neutral deviation states without requiring manual inspection by the operator. The notification unit then self-activates to alert the operator, making the system self-sufficient in detecting and reporting issues
2Reliability
If notifications are issued immediately when neutral deviation occurs, then the operator can recognize the issue promptly, but work efficiency may be reduced due to interruptions
Solution Approach 1:
The notification system dynamically adjusts its behavior based on the operational state of the travel device. The control unit evaluates whether the vehicle is currently working or traveling before issuing notifications, allowing the system to adapt its notification timing to maintain both reliability and productivity
Solution Approach 2:
The detection unit continuously monitors orientation in advance and prepares notification data, but the actual notification is timed to occur at appropriate moments (during travel or after work completion). This preliminary detection combined with strategic notification timing ensures issues are recognized promptly without disrupting work flow
3Loss of information
If the travel device operates without orientation monitoring, then the system remains simple and cost-effective, but hydraulic leaks or external forces causing neutral deviation go undetected
Solution Approach 1:
The patent replaces complex mechanical monitoring systems with electronic detection units that use sensors and control circuits to monitor travel device orientation. This substitution provides more reliable detection capability while actually reducing overall system complexity compared to traditional mechanical gauges or manual inspection methods
Solution Approach 2:
The detection unit and notification system serve multiple functions: they detect neutral deviation, determine vehicle operational state, select appropriate notification timing, and provide alerts to the operator. This multi-functionality consolidates several potential separate systems into one integrated unit, reducing overall complexity
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A work vehicle includes: a body; a front travel device configured to be steerable; a rear travel device configured to be steerable; a steering control device configured to perform steering control on each of the front travel device and the rear travel device and having a plurality of steering modes in each of which the steering control is performed in a different manner; a detection unit configured to detect the orientation of the front travel device and the orientation of the rear travel device; and a notification unit. The plurality of steering modes include a steering mode in which one of the front travel device and the rear travel device is set to a steerable state and the other of the front travel device and the rear travel device is set to a non-steerable state. The notification unit issues a notification based on a detection result from the detection unit, in response to the occurrence of a neutral deviation state in which the orientation of the travel device that is set to the non-steerable state deviates from a neutral orientation by an amount greater than or equal to a predetermined threshold value.