Vehicle Display Image Compensation for Motion Sickness Reduction
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Solution Overview
Problem
Passengers in motor vehicles experience discomfort due to kinetosis when viewing display units during autonomous or semi-autonomous driving, caused by conflicting sensory perceptions of body position, movement, and acceleration.
Innovation Solution
A method and system that estimate future changes in vehicle acceleration to dynamically modify image data displayed on a unit, reducing relative movement between the image and the passenger by applying correction algorithms, such as enlargement, reduction, displacement, or rotation, using control units like actuator control units in the steering system, ensuring quick signal processing and adaptation before sensors detect changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If image data is displayed on a display unit during vehicle movement, then passengers can engage in activities other than driving control, but passengers experience kinetosis discomfort due to conflicting sensory perceptions
Solution Approach 1:
The system applies preliminary anti-action by estimating future acceleration changes before they occur and pre-compensating the image data accordingly. The control unit uses sensor data and correction algorithms to predict upcoming movements and adjust the displayed image in advance, creating a counteracting effect that prevents kinetosis discomfort rather than merely responding to it after occurrence
Solution Approach 2:
The system performs preliminary action by continuously modifying image data based on current and predicted vehicle motion parameters before the actual movement affects the passenger. The correction algorithm adjusts image position, size, and orientation proactively, ensuring the visual stimulus is already adapted when the vehicle movement occurs, thereby preventing sensory conflict
2Measurement precision
If image data is modified based on current acceleration data, then visual perception aligns with current movement, but there is a delay in responding to future acceleration changes
Solution Approach 1:
The system performs preliminary action by estimating future acceleration changes using current sensor data and predictive algorithms. The control unit calculates expected motion parameters in advance and pre-modifies the image data accordingly, so that when the actual acceleration change occurs, the visual compensation is already in place, eliminating the time delay between movement detection and visual adaptation
Solution Approach 2:
The system applies dynamics by continuously adapting the image modification parameters in real-time based on changing vehicle motion conditions. The correction algorithm dynamically adjusts image position, size, and orientation based on current acceleration data and predicted future states, ensuring the visual compensation remains synchronized with actual vehicle movements throughout the driving process
Data Source
AI summary
A method can be utilized to reduce the kinetosis effect in passengers of motor vehicles having an autonomous and/or semi-autonomous driving mode. By means of a display unit, an image generated from image data is displayed to at least one passenger in a display area of the display unit while the motor vehicle is moving. The method may involve estimating a future change in an acceleration of the motor vehicle and modifying the image data based on the estimated future change in acceleration by way of a correction algorithm such that an effect of a relative movement between the displayed image and the passenger is reduced.