Vehicle Display Image Control Using Predictive Acceleration
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Solution Overview
Problem
Existing display systems in vehicles lag behind the actual movement of the vehicle when changing background images to prevent car sickness, leading to a lack of responsiveness in image display.
Innovation Solution
A display control device that calculates a calculation acceleration variable based on the vehicle's driving state to change images accordingly, improving responsiveness by using a CPU to execute image variation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the background image is changed according to the detected acceleration value, then car sickness is suppressed by allowing the occupant to anticipate vehicle behavior, but the image display lags behind the actual movement of the vehicle
Solution Approach 1:
The system performs preliminary action by calculating acceleration from driving state parameters (accelerator pedal depression amount, brake pedal depression amount, vehicle speed) before the actual acceleration occurs. This predictive approach allows the background image to be updated in advance based on expected vehicle behavior, eliminating the lag between actual movement and image display while maintaining car sickness suppression effectiveness.
2Loss of information
If the image is changed based on detected acceleration, then the occupant can anticipate vehicle behavior, but the detected acceleration value causes a delay in reflecting the driver's operation
Solution Approach 1:
The system calculates expected acceleration based on the driver's current operation state (accelerator/brake pedal position, vehicle speed) before the acceleration actually occurs. This preliminary calculation provides timely information about upcoming vehicle behavior, reducing the time loss between driver operation and image update while preserving complete vehicle behavior information.
Solution Approach 2:
Instead of detecting acceleration after it occurs and then updating the image, the system inverts the approach by calculating expected acceleration from driving state parameters before the acceleration happens. This inversion eliminates the inherent delay in detection-based systems and provides real-time responsiveness to driver operations.
Data Source
AI summary
A display control device executes a calculation acceleration acquisition processing and a display processing. The calculation acceleration acquisition processing includes a process of acquiring a calculation acceleration variable that indicates a calculated acceleration of a vehicle in response to a driving state of the vehicle or a driving state of the vehicle that generates the calculated acceleration. The display processing includes a process of displaying an image that is visible to an occupant of the vehicle by operating a display device, and includes an image variation process of changing the image in response to the calculation acceleration variable.