Dynamic Vehicle Power Supply Segmentation Post-Collision
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Solution Overview
Problem
Current motor vehicle safety systems are deenergized after a collision, rendering them unable to initiate accident-severity-mitigating measures for subsequent collisions, thereby increasing the severity of secondary accidents.
Innovation Solution
A method that dynamically manages the power supply of vehicle systems based on collision-specific criteria, allowing essential safety systems to remain active while deactivating non-essential or potentially hazardous systems, ensuring continued safety measures can be taken post-collision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the motor vehicle is completely deenergized after a collision to prevent dangerous high voltages and fires, then electrical safety is improved, but safety systems can no longer be triggered for subsequent collisions
Solution Approach 1:
The patent segments the vehicle's electrical systems into multiple groups with different deenergization timings. Critical safety systems ( Group 1) are deenergized immediately after collision to prevent electrical hazards, while non-critical systems (Groups 2-4) are deenergized progressively later or not at all, allowing them to remain available for subsequent collision mitigation.
Solution Approach 2:
The patent implements dynamic control of power supply where the state of electrical systems changes over time based on collision detection and system priority. The power supply is not statically switched off but dynamically managed with different deenergization schedules for different system groups, enabling adaptive safety responses.
2Object-affected harmful factors
If all vehicle systems are deenergized immediately after collision to ensure safety, then electrical hazards are eliminated, but the ability to mitigate subsequent collision severity is lost
Solution Approach 1:
The patent divides vehicle systems into four groups based on their criticality for subsequent collision mitigation. Group 1 systems (steering, braking, airbags) are maintained powered or deenergized last, while Groups 2-4 systems are progressively deenergized, allowing critical safety functions to remain operational for secondary collision prevention.
Solution Approach 2:
Different deenergization strategies are applied to different system groups based on their specific safety functions. Critical systems receive preferential treatment in the power supply management, while non-critical systems are deenergized first, creating localized quality differences in system availability.
Data Source
AI summary
A method for operating a motor vehicle (1), particularly the supply of power to a motor vehicle (1), during and/or in the time period following a collision, wherein the motor vehicle (1) is at least partially deenergized, wherein the supply of electrical power of a vehicle system (9) is determined and switched during and/or following the collision based on at least one criterion (15).