Centralized Door Locking System with Accident Mode Switch
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Solution Overview
Problem
Conventional motor vehicle locking systems require model-specific parts for mechanical coupling between handling means and locks, leading to high costs and complex logistics, and are vulnerable to operational failures in accidents due to damage to the central control unit or signal paths.
Innovation Solution
A motor vehicle with a centralized locking system that includes peripheral control units connected to each lock, an accident detector to switch actuators between central and peripheral operation modes, and a peripheral control unit that can operate independently with a separate power source, ensuring door operability even in accidents by ignoring central control unit signals and using an accumulator for power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized locking system with mechanical coupling between handling means and locks is used, then door security and control are improved, but the requirement for model-specific parts increases manufacturing costs and logistics complexity
Solution Approach 1:
The patent replaces the mechanical coupling system between handling means and locks with an electrically operated locking system. External and internal handling means are connected to an electric switch, whose position is detected by a central control unit. The central control unit then sends command signals to electric actuators that operate the door locks, eliminating the need for complex mechanical linkages and model-specific mechanical parts.
2Device complexity
If an electrically operated locking system is used to reduce model-specific parts, then manufacturing costs and logistics are improved, but vulnerability to central control unit damage in accidents increases
Solution Approach 1:
The patent segments the locking system into independent operational units. Each door lock has its own electric actuator and is controlled by a peripheral control unit that can receive commands from either the central control unit or directly from handling means. This segmentation allows individual doors to be operated independently even if the central control unit is damaged, ensuring that at least some door functions remain operational after an accident.
3Ease of operation
If mechanical coupling between handling means and locks is used, then door operability is ensured, but the cost and logistics complexity increase due to model-specific parts
Solution Approach 1:
The patent implements a universal electrically operated locking system where the same electric actuators and control architecture can be used across different vehicle models. The handling means are universally connected to electric switches that interface with the central control unit, replacing model-specific mechanical linkages. This universality reduces manufacturing costs and simplifies logistics while maintaining full door operability through the electric control system.
Data Source
AI summary
A motor vehicle has a plurality of doors, each secured by a lock, peripheral control units, each connected to one of said locks, for sending a command signal to an actuator of the lock, a central control unit for sending command signals to the actuators of the locks, and an accident detector. If the accident detector has detected an accident, at least one of the actuators is switchable from a central operating mode in which it executes command signals of the central control unit and its associated peripheral control unit into a peripheral operating mode in which it executes only command signals from its peripheral control unit.