Vehicle Headlight Release Mechanism for Rigid Mounting and Impact Absorption
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Solution Overview
Problem
Existing shock-absorbing vehicle headlight systems experience undesired movements during normal driving due to spring mounting, which compromises pedestrian protection by reducing system rigidity.
Innovation Solution
A shock-absorbing vehicle headlight system with a release mechanism comprising a blocking element, force transmission device, and spring elements that maintains the headlight housing in a stationary position during normal driving and allows displacement during collisions, utilizing a blocking element that switches between blocking and release positions via a rotary shaft and control element, ensuring impact energy absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the headlight housing is spring-mounted to absorb impact energy, then pedestrian protection is improved, but the headlight housing experiences undesired movements during normal driving
Solution Approach 1:
The headlight housing is designed with a dynamic mounting system that transitions between two states: a rigid basic position during normal driving where the blocking element engages with the engagement section to prevent movement, and a flexible adjustment position during collision where the blocking element disengages to allow the headlight housing to move and absorb impact energy. This dynamic switching resolves the contradiction by providing both stability and shock absorption as needed.
Solution Approach 2:
The system changes the rigidity parameter of the headlight mounting by using a blocking element that can be positioned in different states. During normal operation, the blocking element is engaged with the engagement section, providing high rigidity. During collision, the blocking element disengages, reducing rigidity to allow energy absorption. This parameter change resolves the technical contradiction between stability and shock absorption.
2Stability of the object's composition
If the rigidity of the headlight system is increased to prevent movement during normal driving, then headlight housing stability is improved, but the ability to absorb impact energy during collision is reduced
Solution Approach 1:
The mounting system dynamically adjusts its rigidity based on operating conditions. The blocking element mechanism allows the system to switch between a rigid state (blocking element engaged) for normal driving stability and a flexible state (blocking element disengaged) for collision energy absorption, thereby resolving the contradiction between stability and impact energy absorption capability.
Solution Approach 2:
The blocking element is pre-positioned in the engaged state during normal driving to maintain rigidity and stability. Upon collision detection through the release mechanism, the blocking element is quickly disengaged to enable energy absorption. This preliminary positioning and rapid state change resolves the contradiction by preparing the system in advance for different operational requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively absorbs impact energy during collisions while minimizing unwanted headlight movement during normal driving, providing reliable pedestrian protection and maintaining high rigidity.
Implementation Method 1
a first spring element is provided, which exerts a first spring force on the blocking element, pushing it into the blocking position
Implementation Method 2
the guide means engages with the guide such that the vehicle headlight housing is guided along the guide by moving the guide means and thus can be pivoted and/or displaced with respect to the vehicle frame element
Data Source
AI summary
Shock-absorbing vehicle headlight system, having a vehicle frame element, a vehicle headlight housing, two release elements and a release mechanism connected to the vehicle frame element and designed to transition the vehicle headlight housing between a basic position and an adjustment position. The release mechanism includes a blocking element, switchable between a blocking position (BP) and a release position (RP). The vehicle headlight housing is held in the basic position in the BP and transitions to the adjustment position in the RP. A force transmission device mechanically couples the blocking element to the release elements and includes a rotary shaft and a control element. Displacement of each release element can be converted into rotary movement of the rotary shaft, which in turn can be converted into rotary movement of the control element, which is operatively connected to the blocking element in order to push the blocking element into the RP.