Modular Rearview Device with Interchangeable Head Assemblies
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Solution Overview
Problem
Current rearview devices for vehicles either rely on conventional mirrors or camera systems, but not all global markets allow for camera side mirror replacements, limiting a universal solution for vehicles.
Innovation Solution
A modular rearview device system that includes interchangeable head assemblies with either a mirror glass, a camera unit, or both, allowing for a common base assembly to accommodate different configurations, including a locking system and pivot joint mechanism for easy attachment and detachment, and various base assemblies for adaptation to different vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera system is used for side mirror replacement, then the field of view and imaging capability are improved, but legal compliance is worsened in markets that do not allow camera side mirror replacements
Solution Approach 1:
The side mirror system is divided into separate functional modules: a base assembly and interchangeable head assemblies. The head assembly containing the camera unit can be swapped with a head assembly containing a conventional mirror, allowing the system to adapt to different legal requirements while maintaining the same base structure.
Solution Approach 2:
The system transitions from a static mirror configuration to a dynamic, reconfigurable system where the head assembly can be changed based on operational requirements and legal compliance needs. This allows the same base assembly to support both camera-based and mirror-based configurations.
2Adaptability or versatility
If a modular design with interchangeable head assemblies is implemented, then adaptability to different markets and preferences is improved, but device complexity is worsened
Solution Approach 1:
The base assembly is designed as a universal platform that can accommodate multiple types of head assemblies (camera-only, mirror-only, or combined). This universal interface reduces overall system complexity by using a common base structure despite the variety of head assembly options.
Solution Approach 2:
The patent combines multiple functions into a single base assembly that supports various head assembly types. The base assembly integrates mounting mechanisms, electrical connections, and structural support, reducing the need for multiple specialized components.
3Ease of operation
If the head assembly is made moveable with articulation, then adjustment capability is improved, but manufacturing complexity is worsened
Solution Approach 1:
The articulation system is segmented into discrete rotational joints with defined axes, allowing each joint to be manufactured and adjusted independently. This modular articulation approach simplifies manufacturing compared to a fully integrated movable structure.
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 modular design provides flexibility to meet legal requirements and customer preferences, allowing for a conventional mirror, mirror plus camera, or camera pod system, enabling a common fit on vehicles while adapting to field of view needs, reducing size for improved aerodynamics and weight, and offering backup solutions.
Implementation Method 1
a pivot joint mechanism for easy attachment and detachment
Implementation Method 2
a locking system and pivot joint mechanism for easy attachment and detachment
Implementation Method 3
a reflective element secured within the head assembly
Data Source
Figure 1A~1C
Figure 2A~2D
Figure 3A~3C
AI summary
The present invention refers to an external rearview device (10, 10´) for a motor vehicle (100), comprising: • a base assembly (61) provided for arrangement on the motor vehicle; • a head assembly (60, 60´, 60´´) configured to be attached to the base assembly (61); • rearview means comprising at least one of a camera unit (85, 85´) and a reflective element secured within the head assembly (60, 60´, 60´´), wherein the head assembly (60, 60´, 60´´) is configured to be detachable and is selected from a set comprising • a first head assembly (60) with a first rearview means comprising at least one reflective element, preferably in form of a mirror glass (80), and • a second head assembly (60´) with a second rearview means comprising at least one reflective element, preferably in form of an at least partly translucent mirror glass (80´), and a camera unit (85) being configured to obtain a rearview image through the reflective element, and • a third head assembly (60´´) with a third rearview means comprising a camera unit (85, 85´) configured to obtain a rearview image through an opening. Is also refers to an external rearview device kit suited to provide at least one external rearview device of the invention and a vehicle with at least one rearview device according to the invention.