Dual-Mode Vehicle Door Mechanism for Obstacle-Aware Access
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Solution Overview
Problem
Existing vehicle door systems are limited to a single opening method, which is inadequate for flexible access in various environments and the evolving needs of autonomous driving and Purpose Built Vehicles (PBVs).
Innovation Solution
A vehicle door system that integrates both sliding and swinging movement mechanisms, controlled by a controller that switches between these methods based on obstacle detection and occupant preference, using electromagnets and sensors to ensure safe and convenient access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a door system uses a single opening method (either sliding or swinging), then the structure is simple and easy to manufacture, but the adaptability to different environmental conditions and usage scenarios is limited
Solution Approach 1:
The door system integrates both sliding and swinging opening methods into a single door assembly. The door panel is equipped with both a sliding mechanism (including sliding rail and sliding motor) and a swinging mechanism (including hinge and swinging motor), allowing the same door to perform multiple opening functions depending on environmental conditions and user needs.
Solution Approach 2:
The door system dynamically switches between sliding and swinging opening methods based on real-time environmental detection. Sensors detect obstacles and spatial conditions, and the control unit selectively activates either the sliding motor or swinging motor to determine the optimal opening method, making the door system adaptive and flexible.
2Adaptability or versatility
If a door system integrates both sliding and swinging mechanisms, then the adaptability and flexibility are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The door system divides the opening function into separate modular components: a sliding mechanism module (with sliding rail, sliding motor, and related components) and a swinging mechanism module (with hinge, swinging motor, and related components). This segmentation allows each module to be manufactured and tested independently, then assembled into the complete door system, reducing overall manufacturing complexity.
Solution Approach 2:
The control unit merges the control logic for both sliding and swinging mechanisms into a single integrated system. The sensor array detects environmental conditions, and the control unit automatically selects and coordinates the appropriate opening method, unifying the operation of both mechanisms through a single control interface.
3Ease of operation
If the door panel moves through a larger range to accommodate obstacles, then the convenience and safety are improved, but the risk of collision with obstacles increases
Solution Approach 1:
The sensor array performs preliminary detection of obstacles in the door's movement path before the door begins to open. The sensors scan the environment and identify potential hazards, allowing the control unit to pre-select the appropriate opening method (sliding or swinging) that avoids obstacles, preventing collision before it occurs.
Solution Approach 2:
The sensor array continuously monitors the environment during door operation and provides real-time feedback to the control unit. If an obstacle is detected during the opening process, the control unit immediately adjusts the door's movement trajectory or switches between sliding and swinging methods to avoid collision, ensuring safety throughout the entire opening sequence.
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 flexible door opening methods based on environmental conditions and user preferences, enhancing convenience and safety by preventing collisions with obstacles.
Implementation Method 1
an electromagnet is provided on other end portion of the hinge axis, so that the door panel may be fixed and release
Implementation Method 2
other end portion of the door panel fixing arm is provided with the electromagnet, so that the door panel may be fixed and released
Data Source
AI summary
A door system for a vehicle is disclosed, which enables a vehicle door to operate selectively in both sliding and swinging modes. The system includes a hinge mechanism and an electromagnetic locking unit that controls the transition between the two movement types. This dual-mode functionality improves accessibility, space efficiency, and emergency egress capabilities.