A new energy vehicle intelligent door lock cooperative security system and method

By using components such as distributed fiber Bragg grating sensors and shape memory polymer latches, combined with graph neural networks and DS evidence theory, the problem of insufficient perception and execution failure of smart door locks for new energy vehicles under extreme working conditions has been solved. This has enabled accurate damage diagnosis and adaptive unlocking, ensuring the safety of escape routes and the independent operation of the system.

CN122215587APending Publication Date: 2026-06-16SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU VOCATIONAL UNIVERSITY (SUZHOU OPEN UNIVERSITY)
Filing Date
2026-02-25
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Smart door locks for new energy vehicles have systemic shortcomings under extreme conditions such as collisions and power outages, including insufficient perception, rigid decision-making, execution failure, isolated system design, and lack of human-computer interaction, which prevent them from providing effective escape protection under extreme conditions.

Method used

The system employs components such as a distributed fiber optic grating sensor array, an automotive-grade radiation-resistant SoC chip, a shape memory polymer locking tongue, a multi-dimensional unlocking driver, and a vital signs radar. By combining graph neural networks and DS evidence theory, it achieves full-vehicle structural damage reconstruction, adaptive unlocking strategies, and multi-modal decision-making, ensuring that the system can operate independently under extreme conditions.

Benefits of technology

It achieves accurate diagnosis of collision consequences under extreme conditions, adaptive unlocking and provides a safe and reliable escape route, ensuring that the core system can continue to operate for tens of seconds after the main power system fails, providing life protection.

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Abstract

The application discloses a new energy automobile intelligent door lock cooperative security system and method, which comprises a sensing module, a central processor and a self-adaptive execution module. The sensing module comprises optical fiber grating sensors implanted at multiple key stress nodes of a vehicle body framework and connected to the central processor. The central processor adopts three anti-radiation SoC chips to work in a lockstep running mode in parallel, is packaged in a titanium alloy cavity filled with argon, and is installed in an independent anti-collision cabin below a central passage of the vehicle. The self-adaptive execution module comprises a vehicle lock, a non-contact position sensor and a multi-dimensional unlocking driver. The lock tongue of the vehicle lock is made of a shape memory polymer composite material and can be actively deformed. A miniature resistance heating grid is embedded in the actively deformed lock tongue. The monitoring and interaction module comprises a millimeter wave vital sign radar, a distributed thermoelectric pile array and a tactile actuator. Starting from global damage sensing, multi-mode concurrent decision and execution are carried out, and a dynamic adjustment strategy is dynamically adjusted through real-time feedback fusion.
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