Windshield Head-Up Display for Blind Spot Projection
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Solution Overview
Problem
Drivers face challenges in identifying pedestrians and accurately determining the distance to front objects due to the need to bow down to view images displayed on AVN devices, leading to anxiety and reduced safety.
Innovation Solution
A vehicle system that includes a front camera, head-up display, input device, and controller to project a controlled image of the vehicle's blind spot onto the windshield, adjusting the projection area based on vehicle speed, steering direction, and body angle, ensuring the driver can view critical areas without bending, and determining the optimal image size and position for clear visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the image is displayed on an AVN device, then the driver can identify the forward image, but the driver needs to bow down which prevents identifying side pedestrians and creates anxiety about distance judgment
Solution Approach 1:
The patent uses a windshield as an intermediary surface to display the blind spot image. Instead of showing the image on a conventional AVN device that requires the driver to look down, the system projects the image onto the windshield within the driver's normal field of view, allowing simultaneous observation of the road and blind spot area without changing posture
Solution Approach 2:
The patent transitions the display dimension from a vertical downward orientation (AVN device on dashboard) to a horizontal plane on the windshield. This dimensional change allows the blind spot image to be viewed in the same visual plane as the road ahead, eliminating the need to bow down while maintaining visibility of critical forward and side areas
2Area of stationary object
If the projection area is made larger to show more blind spot area, then visibility improves, but the image may overlap with the driver's direct view of the road
Solution Approach 1:
The patent applies local quality by displaying the blind spot image in a specific localized region on the windshield (lower portion) rather than distributing it across the entire surface. This localized placement ensures that critical road information in the upper and central portions of the windshield remains unobstructed, while the blind spot area is clearly visible in the designated lower region
Solution Approach 2:
The patent segments the windshield display area into distinct functional zones: the lower portion for blind spot imagery and the upper/central portions for direct road viewing. This segmentation allows both functions to coexist without interference, with each zone serving its specific purpose independently
3Device complexity
If the image is always displayed at a fixed position, then the system is simple, but the image does not adapt to changes in vehicle speed, steering direction, or body angle
Solution Approach 1:
The patent implements dynamics by making the blind spot image position and size adaptable to changing driving conditions. The system dynamically adjusts the image parameters based on real-time data from sensors detecting vehicle speed, steering angle, and body inclination, ensuring the blind spot area remains accurately represented regardless of vehicle motion state
Solution Approach 2:
The patent uses feedback mechanisms where sensor data about vehicle state (speed, steering, body angle) is continuously fed back to the image processing system. This feedback loop allows the system to automatically adjust the blind spot image positioning and scaling to compensate for vehicle motion, maintaining accurate spatial representation without requiring manual intervention
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
Enhances driver safety and stability by allowing direct viewing of blind spots without bending, improving the driver's ability to identify objects and preventing collisions by providing a clear and adjusted view of the vehicle's surroundings.
Implementation Method 1
a head-up display configured to project an image onto a windshield of the vehicle
Data Source
AI summary
A vehicle and a method for controlling the vehicle are provided. The vehicle includes a first camera configured to capture a front image of the vehicle; a head-up display configured to project an image onto a windshield of the vehicle; an input device configured to input a boundary line for setting an area in which the image is projected from the windshield; and a controller configured to determine a projection area in which the image is projected based on the inputted boundary line, to determine an interest area of the front image based on the determined projection area and a speed of the vehicle, and to display the determined interest area in the determined projection area on the head-up display.