Vehicle Door Interface Using Proximity Sensing for Secure Autonomous Access
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Solution Overview
Problem
Autonomous vehicles and self-driving cars face challenges in opening and closing vehicle doors without a driver, particularly in situations where a passenger needs access and there is no driver to unlock or operate the door.
Innovation Solution
A door interface system equipped with a proximity sensor and visual indicator, which detects objects using infrared light and light-emitting diodes to control the door actuator system, allowing for automatic opening and closing based on user proximity and authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a driver manually operates the door to unlock and open it, then the door can be securely controlled, but the vehicle cannot function autonomously without a driver
Solution Approach 1:
The door interface system enables the door to serve itself by automatically detecting passenger proximity through sensors and executing opening/closing operations without requiring manual driver intervention. The system monitors its own operational state and responds autonomously to passenger needs.
Solution Approach 2:
The patent replaces manual mechanical door operation with an automated system comprising proximity sensors, visual indicators, and an actuator system that electronically controls door opening and closing based on detected passenger presence and authentication status.
2Ease of operation
If the door is always unlocked for easy access, then passenger entry is convenient, but security and controlled access are compromised
Solution Approach 1:
The door locking state transitions dynamically between locked and unlocked conditions based on real-time sensor detection of passenger proximity and authentication status. The system adapts its security level according to the operational context rather than maintaining a fixed state.
Solution Approach 2:
The door interface system continuously monitors passenger proximity through sensors and provides visual feedback through indicators. The system adjusts its security state based on this feedback loop, unlocking only when authenticated passengers are present and requiring confirmation for actual door opening.
3Adaptability or versatility
If manual door operation is used, then system complexity is low, but the vehicle cannot support autonomous operation scenarios
Solution Approach 1:
The door interface system serves multiple functions: it detects passenger proximity, authenticates users, provides visual status indicators, controls door locking/unlocking, and executes opening/closing operations. This multi-functional design enables the system to handle various operational scenarios including autonomous ride-sharing, traditional manual operation, and emergency situations within a single integrated architecture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure and user-friendly automatic operation of vehicle doors in autonomous vehicles, enhancing passenger access and safety by using sensors and visual indicators to manage door status and operation.
Implementation Method 1
The sensor can be an infrared sensor including an infrared light emitter and a light detector
Implementation Method 2
A door interface system equipped with a proximity sensor and visual indicator, which detects objects using infrared light and light-emitting diodes
Data Source
AI summary
A door interface system for a vehicle door includes a sensor and a visual indicator. The sensor may be a proximity sensor and may be positioned proximate to the visual indicator such that it will detect an object proximate to the proximity sensor. The visual indicator may convey the position of the sensor and/or a status of the vehicle door. The door interface system is configured to control the vehicle door based at least in part on detecting an object proximate the visual indicator.