Vehicle Security Handle System with Decoupled Lock Actuation
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Solution Overview
Problem
Existing motor vehicle safety devices with handles and locks are complex and labor-intensive to assemble, and there is a need for a simpler, more compact system that ensures reliable operation while reducing assembly and manufacturing efforts.
Innovation Solution
A system featuring an immovable handle with a switching element and a lock that can be placed in locked or unlocked states, incorporating a checking unit for identification with a portable ID transmitter, allowing electrical actuation of the lock only upon positive identification, and decoupling in case of negative identification, with the handle being rigidly attached to the vehicle and featuring electromechanical buttons or radio communication for state changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a mechanical connection between handle and lock is used, then the system structure is simple, but the assembly and manufacturing effort increases
Solution Approach 1:
The system is divided into separate functional modules: a handle unit with switching element, a lock unit, and a verification unit. These modules can be manufactured independently and then assembled, reducing overall assembly complexity while maintaining functional integration. The mechanical connection is simplified to only essential components.
Solution Approach 2:
The verification function is extracted as a separate unit that can operate independently. The mechanical connection between handle and lock is minimized to only the necessary switching element, while the verification and control functions are separated into distinct components that can be manufactured and tested separately.
2Reliability
If electrical decoupling is implemented for security, then authorization control is improved, but the system complexity increases
Solution Approach 1:
A verification unit acts as an intermediary between the handle switching element and the lock. This intermediary checks authorization credentials and only permits the switching element to control the lock when proper authorization is verified, providing security without requiring complex direct control mechanisms.
Solution Approach 2:
The mechanical connection between handle and lock is supplemented or replaced with an electrical/electronic control system. The switching element in the handle generates an electrical signal that, after verification, actuates the lock electronically rather than through direct mechanical linkage, enabling authorization control while simplifying the physical structure.
3Device complexity
If a rigid immovable handle is used, then the structure is simplified, but the ease of operation decreases
Solution Approach 1:
While the handle itself is rigid and immovably mounted to provide structural simplicity, the switching element within the handle incorporates dynamic feedback mechanisms. The system responds to user input through sensors that detect handle position or switching element actuation, providing operational ease through intelligent response rather than mechanical movement.
Data Source
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AI summary
The invention relates to a system (10) for a security device (1) of a motor vehicle (2), comprising a stationary handle which has a switching element, a lock (50) which can be brought at least into a locked state and an unlocked state, and a checking unit (3) which carries out an identification check using a portable identification transmitter (4) when the handle (20) is activated. If the identification is positive, the lock (50) can be electrically actuated by the switching element (21), whereby the state of the lock (50) can be changed, and if the identification is negative, the lock (50) is electrically decoupled from the switching element (21) such that a change of state of the lock (50) is blocked when the switching element (21) is actuated.