Sliding Door Locking Mechanism for B-Pillarless Side Impact Reinforcement
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Solution Overview
Problem
Vehicles without a B-pillar face challenges in maintaining door integrity during side impacts, as the absence of a structural pillar compromises the reinforcement between the front and rear pillars, potentially allowing intrusion and compromising occupant safety.
Innovation Solution
A locking mechanism comprising a first and second locking member, supported by the doors, which move along specific axes to lockingly engage and disengage, providing structural reinforcement by maintaining the doors in a closed position during impacts, and comprising motors to facilitate these movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a B-pillar is removed to allow more space for occupants to ingress and egress, then ease of operation is improved, but strength is worsened
Solution Approach 1:
The locking mechanism is divided into separate locking members (first locking member on one door, second locking member on the other door) that can move independently along different axes. This segmentation allows the locking system to adapt to the relative movement between doors while maintaining structural integrity, resolving the contradiction between ease of operation and strength.
Solution Approach 2:
The locking members are designed to be movable rather than fixed, with the first locking member movable along a first axis and the second locking member movable along a second axis. This dynamic capability allows the locking mechanism to accommodate door movement during side impacts while maintaining engagement, thus preserving strength without compromising operational flexibility.
2Adaptability or versatility
If locking members are made movable along different axes to accommodate door movement, then adaptability is improved, but device complexity is worsened
Solution Approach 1:
The locking mechanism is divided into separate locking members (first locking member on one door, second locking member on the other door) that can move independently along different axes. This segmentation allows the locking system to adapt to the relative movement between doors while maintaining structural integrity, resolving the contradiction between ease of operation and strength.
Solution Approach 2:
The locking members are designed to be movable rather than fixed, with the first locking member movable along a first axis and the second locking member movable along a second axis. This dynamic capability allows the locking mechanism to accommodate door movement during side impacts while maintaining engagement, thus preserving strength without compromising operational flexibility.
Data Source
AI summary
An assembly for a vehicle includes a first door and a second door moveable from an open position to a closed position. The assembly includes a first locking member supported by the first door moveable along a first axis to a raised position and to a lowered position. The assembly includes a second locking member supported by the second door movable along a second axis transverse to the first axis. The first locking member is lockingly engaged with the second locking member when the second locking member is in the extended position and the first locking member is in one of the lowered position or the raised position. The first locking member is disengaged with the second locking member when the second locking member is in the retracted position and the first locking member is in the other of the lowered position or the raised position.