Sliding Door Braking Control for Emergency Exit Pinch Prevention
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Solution Overview
Problem
In autonomous vehicles with sliding doors, power failures can create a pinch point where passengers' hands or arms may get stuck while trying to open the door, posing a safety risk during emergency exits.
Innovation Solution
An emergency door braking system that includes a vehicle processor for storing data on door latch status and sliding door location, and a server configured to stop the sliding door at a predetermined location based on this data, thereby preventing injury to passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an emergency opening lever is provided for power failure situations, then passenger safety during power failure is improved, but a pinch point is created where hands or arms may get stuck
Solution Approach 1:
The system applies preliminary anti-action by detecting door latch status and predicting potential pinch points before the door moves. The server calculates the door trajectory and identifies hazardous zones in advance, then applies braking force to prevent the door from entering positions that would cause injury to passengers operating the emergency lever.
Solution Approach 2:
The system implements feedback by continuously monitoring door latch status, door position, and passenger presence. The server receives real-time data about the door's operational state and adjusts the braking control dynamically based on this feedback, ensuring the door stops at safe positions while still allowing emergency access when needed.
2Manufacturing precision
If the sliding door is controlled by a vehicle server, then door operation precision is improved, but the system complexity increases
Solution Approach 1:
The system achieves universality by making the existing vehicle server perform multiple functions: it controls normal door operation, monitors door latch status, calculates door trajectories, identifies pinch points, and controls emergency braking. This consolidates multiple control functions into a single existing controller, avoiding the need for separate dedicated controllers while maintaining precision.
Solution Approach 2:
The system implements self-service by having the vehicle server use its own existing resources and data structures to perform the additional safety functions. The server leverages its existing communication infrastructure, processing capabilities, and integration with the vehicle's Hall effect sensor system to implement pinch point detection and braking control without requiring external dedicated hardware.
Data Source
AI summary
An emergency door braking system for an autonomous vehicle includes a vehicle processor for storing vehicle data including door latch status and vehicle sliding door location. The emergency door braking system also includes a server communicatively coupled to the vehicle processor and configured to stop a sliding vehicle door at a predetermined vehicle sliding door location based on the door latch status.