Trailer Camera Perspective Adjustment via Pivot Angle
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Solution Overview
Problem
Existing driver assistance systems for maneuvering vehicles with trailers often provide non-intuitive and incorrect images of the environmental region behind the trailer, especially during turning maneuvers, due to shifting camera capture directions and pivot angles, which can confuse drivers and pose safety risks.
Innovation Solution
A method that captures image data from vehicle-side and trailer-side cameras and dynamically adjusts the perspective based on the pivot angle between the trailer and the motor vehicle, switching between first person and third person views to ensure accurate and intuitive representation of the environmental region, using a virtual camera pose that adapts to the pivot angle and allows user input for perspective selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If images are generated from trailer-side and vehicle-side cameras without perspective adjustment, then the driver can see the environmental region behind the trailer, but the images become non-intuitive and incorrect during turning maneuvers due to pivot angle changes
Solution Approach 1:
The patent applies dynamics by making the perspective adjustable based on the pivot angle between the trailer and vehicle. The system dynamically adapts the camera perspective from a fixed first-person view to a variable perspective that changes with the trailer's position, allowing accurate representation of the environmental region during turning maneuvers while maintaining system simplicity through automated adjustment.
2Ease of operation
If a fixed first person perspective is used for displaying the environmental region, then the system is simple to implement, but the images become non-intuitive during turning maneuvers when the pivot angle changes
Solution Approach 1:
The system transitions from a static first-person perspective to a dynamic perspective that automatically adapts to the pivot angle. This allows the image to remain intuitive for the driver while accommodating various trailer positions during maneuvering, resolving the contradiction between ease of operation and adaptability.
Solution Approach 2:
The patent changes the perspective parameter based on the pivot angle between the trailer and vehicle. By adjusting this key parameter dynamically, the system maintains intuitive image representation across different operating conditions without requiring complex manual intervention.
3Reliability
If the perspective is dynamically adjusted based on pivot angle, then accurate and intuitive images are provided during turns, but the device complexity increases due to additional processing requirements
Solution Approach 1:
The system uses feedback from the pivot angle sensor to automatically adjust the perspective. This closed-loop approach ensures accurate environmental region representation during turns while keeping the system relatively simple, as the adjustment is automated based on real-time feedback rather than requiring complex manual control mechanisms.
Data Source
AI summary
The invention relates to a method for assisting a driver of a motor vehicle (1) in maneuvering the motor vehicle (1) with a trailer (3), wherein image data is captured from an environmental region (12) of the motor vehicle (1) by means of at least one vehicle-side camera (5) and by means of at least one trailer-side camera (10) and an image (B) of the environmental region (12) is created for displaying on a vehicle-side display device (14) depending on the captured image data, wherein a perspective (P1, P2), from which the environmental region (12) is displayed in the image (B), is determined depending on a pivot angle (17) between the trailer (3) and the motor vehicle (1). The invention additionally relates to a driver assistance system (2) as well as to a vehicle/trailer combination with a motor vehicle (1), a trailer (3) and a driver assistance system (2).