Post-Collision Brake Release Architecture for Vehicle Mobility
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Solution Overview
Problem
Post-collision automatic braking systems can cause vehicle wheels to lock, hindering movement for rescue operations or safe lane change after a collision, as existing systems lack mechanisms to ensure indefinite brake release.
Innovation Solution
A brake control system with multiple mechanisms positioned at different locations within the vehicle, such as the trunk, engine compartment, and passenger cabin, to release brakes after activation, including manual, remote-controlled, and software-based mechanisms, ensuring at least one mechanism remains operational for safe vehicle movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If post-collision automatic braking function activates to slow down and bring to rest the vehicle, then collision safety is improved, but vehicle mobility is worsened due to locked wheels
Solution Approach 1:
The brake control system is segmented into multiple independent release mechanisms positioned at different locations within the vehicle (driver side, passenger side, trunk, engine compartment). Each mechanism can independently release the brakes, ensuring that if one mechanism is inaccessible or damaged after collision, other mechanisms remain available to restore vehicle mobility.
Solution Approach 2:
Different release mechanisms are distributed to different locations within the vehicle structure, each with specific accessibility characteristics. This local distribution ensures that at least one mechanism remains accessible after various types of collisions, balancing the need for brake activation safety with post-collision mobility requirements.
2Device complexity
If only one release mechanism is provided, then device complexity is reduced, but reliability of brake release is worsened due to potential inaccessibility or damage
Solution Approach 1:
The system incorporates multiple release mechanisms as a preventive measure before collision occurs. This redundancy ensures that if one mechanism becomes inaccessible or damaged after collision, other mechanisms are already in place to reliably release the brakes, cushioning against the uncertainty of post-collision conditions.
Solution Approach 2:
The system changes the parameter of mechanism quantity from one to multiple, and changes the spatial parameter by positioning mechanisms at different locations within the vehicle. This transforms the system from a single-point failure mode to a distributed reliability architecture.
Data Source
Figure 1
AI summary
A brake control system (1) for a vehicle with a post-collision automatic braking function (2) includes one or more mechanisms (31, 32, 34) configured to release at least one brake (100) of the vehicle upon activation of at least one of the mechanisms (31, 32, 34) after a collision of the vehicle has been detected.