Industrial Vehicle Object Avoidance During Travel Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Industrial vehicles with steerable wheels face decreased work efficiency due to mismatched detection results from object detectors and travel modes, leading to unnecessary vehicle speed limits and alerts, which can be disabling for certain travel modes.
Innovation Solution
An industrial vehicle with an object detector and a controller that switches between first and second travel modes, maintaining object avoidance control by adjusting vehicle speed limits and alerts based on detection results, especially when transitioning to non-detection modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vehicle speed limit and alert are disabled for certain travel modes to suppress work efficiency decrease, then work efficiency is improved, but safety control is worsened
Solution Approach 1:
The patent applies dynamics by making the object avoidance control adaptive to different travel modes. The controller dynamically adjusts the control strategy based on the detected travel mode: in first travel modes where the vehicle travels toward the detection range, object avoidance control is performed; in second travel modes where the vehicle does not travel toward the detection range, the control is suppressed. This dynamic adaptation resolves the contradiction by maintaining safety control only when necessary, thereby improving work efficiency without compromising safety.
2Reliability
If vehicle speed limit is performed based on object detector results, then safety is improved, but work efficiency is worsened due to mode mismatch
Solution Approach 1:
The system dynamically adjusts the application of object avoidance control based on the detected travel mode. The controller identifies whether the vehicle is in a first travel mode (traveling toward the detection range) or a second travel mode (not traveling toward the detection range), and accordingly enables or suppresses the control. This dynamic behavior ensures safety is maintained when the object detector is relevant, while avoiding unnecessary control that would reduce work efficiency in modes where the detector is not applicable.
Solution Approach 2:
The patent applies local quality by tailoring the object avoidance control to specific travel modes rather than applying it uniformly. Different travel modes receive different control treatments: first travel modes get full object avoidance control for safety, while second travel modes have the control suppressed to maintain work efficiency. This localized approach to control quality resolves the contradiction between safety and efficiency by applying safety measures only where locally appropriate.
3Adaptability or versatility
If travel mode transitions occur during vehicle operation, then adaptability is improved, but control stability is worsened
Solution Approach 1:
The controller dynamically responds to travel mode transitions by detecting the current mode and adjusting the object avoidance control accordingly. When a transition from first to second travel mode occurs, the controller suppresses the control; when transitioning back to first mode, the control is re-enabled. This dynamic adaptation maintains control stability during mode transitions by ensuring the control state always matches the current travel mode, resolving the contradiction between adaptability and stability.
Data Source
AI summary
An industrial vehicle includes an industrial vehicle including an object detector, a switching member configured to perform switching between a first travel mode in which the industrial vehicle travels in a direction toward a detection range of the object detector and a second travel mode in which the industrial vehicle does not travel in the direction toward the detection range of the object detector, and a controller configured to perform an object avoidance control according to a detection result of the object detector. The controller performs the object avoidance control according to the detection result of the object detector when the first travel mode is set. The controller performs a control so as to maintain the object avoidance control when the first travel mode is switched to the second travel mode while the industrial vehicle is travelling in the first travel mode.