Vehicle Door and Slope Plate Sequencing to Prevent Passenger Contact
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Solution Overview
Problem
Passengers may come into contact with a deploying slope plate in vehicles equipped with existing slope devices, as the slope plate is deployed after the door is opened, potentially causing safety hazards.
Innovation Solution
A control device coordinates the operation of a door opening-closing mechanism and a slope deploying mechanism to deploy the slope plate outside the vehicle before opening the door, ensuring the slope plate is fully deployed and the door is partially opened before full deployment, thereby reducing passenger contact risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door is opened first and then the slope plate is deployed, then the door opening operation is simple and quick, but passengers may come into contact with the deploying slope plate causing safety hazards
Solution Approach 1:
The control device performs preliminary action by deploying the slope plate before opening the door. The control device activates the slope deploying mechanism to extend the slope plate to the ground, and only after the slope plate is fully deployed does it activate the door opening mechanism. This sequence ensures the safe path is ready before passengers exit, eliminating the hazard of contact with moving slope plate.
2Object-affected harmful factors
If the slope plate is deployed before the door is opened, then passenger safety is improved, but the operation sequence becomes more complex
Solution Approach 1:
The control device implements self-service by automatically managing the coordinated operation of the slope deploying mechanism and door opening mechanism. When the door switch is activated, the control device autonomously executes the sequence: deploy slope plate, wait for full deployment, then open door. This automated control eliminates the need for manual coordination complexity while maintaining the safe operation sequence.
3Object-affected harmful factors
If the door is partially opened before the slope plate is fully deployed, then passenger safety is improved, but the time required for passenger access increases
Solution Approach 1:
The control device applies partial action by opening the door only after the slope plate is fully deployed, rather than opening it simultaneously or before. The door opening mechanism is activated only after the control device confirms complete slope plate deployment, ensuring the opening action occurs only when the safe path is fully established, minimizing passenger exposure to hazards while maintaining efficient access.
Data Source
AI summary
A control device of a vehicle is installed in a vehicle including: a body having a vehicle cabin and a floor panel constituting a floor of the vehicle cabin; a door opening-closing mechanism that drives a door mounted on the body to open and close; and a slope deploying mechanism that deploys a slope plate housed under the floor panel to the outside of the body. The control device coordinates the operation of the door opening-closing mechanism and the slope deploying mechanism. The control device opens the door by the door opening-closing mechanism after deploying the slope plate toward the outside of the body by the slope deploying mechanism.