Vehicle Handle Assembly Impact Locking Mechanism
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Solution Overview
Problem
Existing vehicle handle assemblies are prone to unlocking the vehicle door when the rear of the vehicle is subjected to an unexpected impact, leading to security and design issues, as they either require additional space-consuming inertia locks or unsightly buttons for triggering the unlock mechanism.
Innovation Solution
A handle assembly with a base, handle body, and cover plate that are rotatable about different axes, where the cover plate and handle body together rotate relative to the base upon impact, triggering a trigger device only when a specific angle is reached, eliminating the need for additional locks or buttons and maintaining the door in a locked state during impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional handle assembly is used that rotates relative to the vehicle body, then the door can be unlocked by pulling the handle, but the door may accidentally unlock when the rear of the vehicle is subjected to impact
Solution Approach 1:
The handle assembly is segmented into multiple components rotating about different axes: the handle body rotates about a first axis relative to the base, while the cover plate rotates about a second axis (different from the first axis) relative to the handle body. This segmentation allows independent motion control of each component, enabling the trigger device to distinguish between intentional unlocking operations and impact-induced movements.
Solution Approach 2:
The system employs dynamic rotation about multiple axes where the handle body and cover plate can rotate independently about different axes. The trigger device is configured to respond only to specific rotational sequences or angle combinations, creating a dynamic response mechanism that differentiates between deliberate user actions and accidental impact movements.
2Reliability
If inertia locks or buttons are added to prevent accidental unlocking, then door locking reliability improves, but device complexity and space requirements increase
Solution Approach 1:
The multi-axis rotation mechanism serves multiple functions: it enables normal door unlocking operation, prevents accidental unlocking during impact, and eliminates the need for separate inertia locks or buttons. The different axes of rotation (first axis for handle body, second axis for cover plate) create a inherent security mechanism that is integrated into the basic handle structure rather than adding separate safety components.
3Reliability
If inertia locks or buttons are added to prevent accidental unlocking, then door locking reliability improves, but the aesthetic appearance deteriorates due to unsightly components
Solution Approach 1:
The cover plate that is visible and aesthetic in design serves the additional security function of preventing accidental unlocking. By making the cover plate rotate about a second axis different from the first axis (handle body rotation), it becomes an active security component rather than merely a cosmetic cover, eliminating the need for additional buttons or locks that would compromise appearance.
Data Source
AI summary
The present disclosure discloses a handle assembly and a vehicle. The handle assembly comprises a base, a handle body, a cover plate and a trigger device. The cover plate is rotatably provided on the handle body. The trigger device is provided between the handle body and the cover plate, and is configured to trigger by a relative motion between the cover plate and the handle body. The handle body and the cover plate are rotatable together relative to the base. The handle assembly of the present disclosure enables a vehicle door to be kept in a locked state when the rear of a vehicle is subjected to an unexpected impact.