External Bonnet Unlock Cable Layout for Secure Vehicle Access
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Solution Overview
Problem
Existing methods for unlocking a vehicle bonnet, particularly in electric vehicles, are costly and require multiple trips by the user to different vehicle areas for accessing storage compartments and charging ports, complicating the process.
Innovation Solution
An arrangement with a gripping means accessible outside the passenger compartment, connected to a cable that operates the bonnet lock, integrated with a security and authentication system to ensure only authorized users can unlock the bonnet and charging port, allowing simplified and secure access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mechanical cable system is used inside the passenger compartment to unlock the bonnet, then the structure is simple and secure, but the user must access the passenger compartment to unlock the bonnet, requiring multiple trips
Solution Approach 1:
The cable system is extracted from the passenger compartment and repositioned to the exterior of the vehicle. The gripping means and cable assembly are mounted on the front bumper or grille area, allowing users to unlock the bonnet from outside the vehicle without entering the passenger compartment.
Solution Approach 2:
A new intermediary component (gripping means) is introduced on the vehicle exterior that serves as the interface between the user and the cable system. This gripping means connects to the existing bonnet lock cable, mediating the unlocking action from an external location.
2Ease of operation
If electric locks or actuators are used to simplify bonnet opening, then user convenience is improved, but the cost of the system increases significantly
Solution Approach 1:
The system uses the existing mechanical cable infrastructure already present in the vehicle for bonnet locking. By adding only a simple external gripping interface and repositioning the cable routing externally, the solution leverages existing components to achieve the desired functionality without requiring expensive electric actuators or locks.
Solution Approach 2:
The solution replaces expensive electric locking mechanisms with a simple, inexpensive mechanical cable and gripping assembly. The external cable system uses basic mechanical components that are far cheaper than electric actuators while achieving the same functional goal of enabling external bonnet access.
3Ease of operation
If the gripping means is positioned far from the bonnet lock, then it is accessible from outside the vehicle, but the cable length increases and may compromise security
Solution Approach 1:
The gripping means is positioned locally on the front bumper or grille area, which is the optimal location that balances external accessibility with minimal cable length. This local positioning ensures the gripping interface is easily reachable from outside the vehicle while keeping the cable route short and secure.
Data Source
AI summary
A motor vehicle includes an arrangement for unlocking a lock of a bonnet, in particular a front bonnet. The arrangement includes a gripping structure and a cable connecting the lock of the bonnet to the gripping structure. The gripping structure is accessible to a user from outside a passenger compartment of the motor vehicle and the cable is positioned entirely outside the passenger compartment of the motor vehicle.