Camera Rearview Mirror for Opaque Tailgate Vehicles
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Solution Overview
Problem
Traditional rearview systems in automobiles are limited by the need for a rear window, which restricts vehicle models and design, creates blind spots, and lacks a sense of technology and mystery.
Innovation Solution
A rearview system with an exterior rearview mirror, interior rearview mirror module, and a first camera module that captures the driving environment, displayed on an inner rearview display screen, allowing for diverse vehicle models and improved visual field without a rear window, and featuring modes like image display, specular reflection, and split-screen to enhance visibility and reduce blind spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional rearview system with rear window is used, then the driver can see the rear visual field through optical reflection, but the rear window restricts vehicle models and appearance design, creating blind spots and reducing the sense of technology and mystery
Solution Approach 1:
The patent replaces the traditional optical reflection system (rear window + interior rearview mirror) with an electronic imaging system consisting of a rearview camera, image processing unit, and display screen. This substitution eliminates the need for a physical rear window while providing flexible display options and eliminating blind spots, thereby resolving the contradiction between vehicle design freedom and rear visual field coverage.
Solution Approach 2:
The system creates a digital copy of the rear visual field through camera imaging and displays it on the front dashboard screen. This virtual copy allows the driver to view the rear environment without needing a physical rear window, achieving both design freedom and complete rear visibility.
2Adaptability or versatility
If the rear window size is reduced to improve design flexibility, then the vehicle appearance is improved, but the rear visual field becomes smaller and blind spots increase
Solution Approach 1:
The electronic imaging system replaces the mechanical optical system, allowing the rear window to be minimized or eliminated entirely. The camera captures the complete rear field of view and transmits it to the display, ensuring full visual coverage regardless of rear window size, thus resolving the contradiction between appearance flexibility and visual field area.
3Adaptability or versatility
If an opaque tailgate is used to enhance the sense of technology and mystery, then the aesthetic appeal is improved, but the rear visual field is completely blocked
Solution Approach 1:
The patent replaces the optical transmission function of the rear window with an electronic imaging and display system. The opaque tailgate blocks light completely, but the rearview camera mounted behind it captures images electronically and displays them on the front dashboard, maintaining full rear visibility while allowing complete aesthetic freedom for the tailgate design.
4Reliability
If the interior rearview mirror is replaced with a display screen showing camera images, then blind spots are reduced and design freedom is increased, but the system complexity increases
Solution Approach 1:
The display screen serves multiple functions: it displays the rearview camera image, can show other vehicle information, and may integrate with the vehicle's infotainment system. The camera system also serves dual purposes for rearview and monitoring functions. This multi-functionality justifies the increased complexity by providing enhanced reliability and additional capabilities.
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
Enables diverse vehicle designs, expands the driver's visual field, reduces blind spots, and saves cabin space by utilizing camera-based display technology that adapts to driving conditions and user needs.
Implementation Method 1
The principle of optical reflection is used to provide the driver with a rear visual field of the vehicle
Implementation Method 2
the control module is further configured to obtain the ambient light information according to the photosensitive sensor
Data Source
AI summary
Disclosed is an automobile, including a vehicle body and a rearview system. A vehicle cabin is provided inside the vehicle body, the vehicle body includes a roof and a tailgate directly connected to the roof, and the tailgate is made of an opaque material; the rearview system is provided on the vehicle body and including an exterior rearview mirror, an interior rearview mirror module and a first camera module, the exterior rearview mirror and the first camera module are both located outside the vehicle cabin, the interior rearview mirror module is located in the vehicle cabin, the interior rearview mirror module includes an inner rearview display screen electrically connected to the first camera module and provided with an image display mode; and in the image display mode, the inner rearview display screen is configured to display driving environment behind the automobile captured by the first camera module.