Drive Sense Adjusting Apparatus for Vehicle Windscreen
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Solution Overview
Problem
Existing drive sense adjusting devices primarily focus on correcting speed sense and fail to stabilize the drive sense of drivers by controlling other senses such as heading perception and equilibrium, limiting their effectiveness in ensuring safe driving.
Innovation Solution
A drive sense adjusting apparatus that presents visual stimuli to drivers, using a visual stimulus presentation unit and imaging unit to create a visual stimulus equivalent to road optical flow, allowing the driver to perceive motion through their peripheral vision, thereby stabilizing their drive sense by inducing vection and improving heading perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a speed sense correcting device presents a reverse-running pattern to correct speed sense, then speed sense correction is achieved, but other drive senses such as heading perception and equilibrium sense cannot be controlled
Solution Approach 1:
The visual stimulus presentation unit is designed to present multiple types of visual stimuli (approaching pattern, receding pattern, and peripheral visual stimulus) that can simultaneously control multiple drive senses including speed sense, heading perception, and equilibrium sense, making the device multi-functional rather than limited to single-purpose speed sense correction
2Loss of information
If a visual stimulus presentation unit displays images on a screen, then visual information is provided to the driver, but the direction of the screen and the direction of the displayed image may not align, causing difficulty in associating the image with the external environment
Solution Approach 1:
The display screen is positioned and oriented asymmetrically relative to the driver's line of sight, specifically disposed substantially perpendicular to the driver's line of sight rather than parallel to it, which optimizes the association between the displayed image direction and the external environment direction
Solution Approach 2:
The problem is solved by changing the spatial dimension of screen orientation from being parallel to the driver's forward direction to being perpendicular to it, allowing the image direction to align with the external environment direction
3Ease of manufacture
If functional components of the vehicle obstruct the driver's peripheral vision, then vehicle functionality is maintained, but the driver's perception of road optical flow is limited
Solution Approach 1:
A visual stimulus presentation unit is introduced as an intermediary device that presents visual stimuli to the driver's peripheral vision area, compensating for the obstruction caused by vehicle functional components and enhancing the driver's perception of road optical flow
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 apparatus effectively stabilizes the drive sense of drivers by enhancing their perception of the road optical flow, improving heading direction awareness, and maintaining equilibrium sense during various driving conditions.
Implementation Method 1
visually induced vection can be produced for the driver by the visual stimulus
Implementation Method 2
an imaging unit for imaging a video outside of the vehicle
Data Source
AI summary
A control unit presents a visual stimulus onto a film adhered on an inner surface of a windscreen glass of a vehicle, and controls the visual stimulus so as to allow a driver to perceive the visual stimulus approaching the driver or receding therefrom in response to detection results of a driving environment detection unit, a vehicle status detection unit and a driver status detection unit. In such a way, visually induced vection can be produced for the driver by the visual stimulus. Accordingly, a drive sense of the driver can be adjusted in response to a vehicle state quantity, a driving environment and a driver state.