Vehicle Door Interface With Proximity Sensing for Autonomous Entry
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Solution Overview
Problem
Traditional vehicle door opening mechanisms are inadequate for self-driving cars and ride-sharing scenarios where a driver is not present to unlock and open the vehicle doors for passengers.
Innovation Solution
A door interface system equipped with a proximity sensor and visual indicator that detects the presence of an object and controls the vehicle door based on sensor data, allowing for automatic unlocking and opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a driver manually unlocks and opens the door, then the door can be reliably opened for passenger entry, but the system requires human intervention which is not available in autonomous vehicles
Solution Approach 1:
The door interface system enables the door to automatically detect objects through the proximity sensor and execute opening/closing operations without human intervention. The system serves itself by integrating sensing, decision-making, and actuation capabilities directly in the door unit, eliminating the need for manual driver operation while maintaining reliable door control in autonomous vehicles.
Solution Approach 2:
The manual mechanical door operation is replaced by an automated electromechanical system. The proximity sensor detects objects and triggers electronic control signals that activate the door actuator, substituting the mechanical hand-pulling action with an automated sensing-actuation system that provides both automation and reliability.
2Extent of automation
If the door interface system uses a proximity sensor to detect objects, then automatic door operation is enabled, but the system complexity increases
Solution Approach 1:
The proximity sensor, visual indicator, and door actuator are merged into a single integrated door interface system. This consolidation reduces overall system complexity by eliminating the need for separate control units, wiring harnesses, and control logic for each component, while still achieving automatic door operation through the combined functionality of these integrated elements.
3Loss of information
If the visual indicator communicates door status through light patterns, then user awareness of door state is improved, but energy consumption increases
Solution Approach 1:
The visual indicator uses periodic light patterns (flashing, pulsing, or sequential lighting) to communicate door status information. This periodic action provides clear visual feedback to users about the door state and operation progress while consuming less energy than continuous illumination, as the indicator is activated only during relevant door operations and uses intermittent lighting patterns rather than constant brightness.
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 efficient door operation in autonomous vehicles and ride-sharing situations by ensuring passenger access without manual intervention.
Implementation Method 1
The sensor is a proximity sensor having an infrared light emitter and a light detector or receiver
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.