Vehicle Door Separation Mechanism for Collision Egress
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Solution Overview
Problem
In emergency situations, such as vehicle collisions, conventional door mechanisms may fail, trapping occupants inside and requiring specialized external equipment for rescue, which can be dangerous and delayed.
Innovation Solution
An emergency door release device that includes sensors to detect collisions and door states, a receiver for a secondary detonation trigger, and an explosive mechanism to partially separate the door from the vehicle, ensuring safe egress without external equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional door latches and hinges are used, then the door can be opened under normal conditions, but the door may become jammed or deformed in severe collisions, trapping occupants
Solution Approach 1:
The door system is divided into two independent parts: the conventional door structure (latch and hinge) and the explosive separation system. The explosive charge is positioned to separate the door from the vehicle body, creating an independent emergency egress path that does not depend on the conventional door opening mechanism.
Solution Approach 2:
The explosive charge and separation mechanism are pre-installed on the door during manufacturing. In the event of a collision, the system can be activated to separate the door from the vehicle body, providing an immediate emergency exit path without requiring manual intervention or external equipment.
2Productivity
If specialized external equipment (axes, crowbars, hydraulic cutters) is used to force door opening, then trapped passengers can be rescued, but the process is dangerous to operators and passengers, expensive, and time-consuming
Solution Approach 1:
The door is equipped with its own explosive separation system that can be activated from the interior or exterior of the vehicle. This eliminates the need for external rescue equipment and operators, allowing passengers to create their own emergency exit path or enabling rapid rescue without exposing operators to danger.
Solution Approach 2:
The mechanical force required to break through a jammed door (using axes, crowbars, or hydraulic cutters) is replaced by a controlled explosive separation system. The explosive charge creates a clean separation between the door and vehicle body, providing rapid access without the dangers and costs associated with mechanical force application.
3Ease of operation
If an explosive mechanism is installed in the door to force separation, then rapid egress is enabled even when conventional mechanisms fail, but the device complexity and safety risks increase
Solution Approach 1:
The explosive separation system is merged with the existing door structure, utilizing the door's own mass and framework as part of the separation mechanism. The explosive charge is positioned to leverage the door's structural components, reducing the need for additional complex mechanisms while maintaining effectiveness.
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
The device enables rapid and safe exit from vehicles in emergency situations, even when conventional door opening mechanisms are compromised, reducing the risk of injury or fatality.
Implementation Method 1
an explosive mechanism to partially separate the door from the vehicle
Data Source
AI summary
An emergency door release device for a vehicle may include a first sensor to detect a collision and provide a collision indication. A door sensor may detect if a door remains closed after the collision and provide a door indication. A receiver may receive a secondary detonation trigger indication from another device. A processor may analyze the indications to determine if they meet time constraints. A detonator may cause detonation of an explosive to separate the door from the vehicle body if the constraints are met. The device may include additional sensors to detect unsafe conditions. A method and system for releasing a vehicle door using similar components and steps may also be provided.