Vehicle Vision System Trajectory Overlay Steering Angle
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Solution Overview
Problem
Existing vision systems for vehicles, particularly commercial vehicles with trailers, often distract drivers with unnecessary static auxiliary lines and distance lines, making it difficult to focus on the image displayed for maneuvering and parking, which can lead to collision risks.
Innovation Solution
A vision system that displays a trajectory of the vehicle's future course only when a predetermined steering angle is reached, using a calculation unit to process vehicle-related input variables and record images from multiple units, such as cameras, to provide a clear and focused view of the surroundings, including the vehicle's sides and rear, without unnecessary overlays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If static auxiliary lines and distance lines are continuously displayed in the vision system, then driver orientation and spatial awareness are improved, but driver distraction and irritation increase
Solution Approach 1:
The patent applies dynamics by making the trajectory display conditional rather than static. The trajectory is only shown when the steering angle exceeds a threshold value, making the information display adaptive to the actual driving situation. This resolves the contradiction by providing spatial awareness information only when needed for maneuvering, eliminating unnecessary distraction during normal driving.
Solution Approach 2:
The patent applies local quality by differentiating the display behavior based on the local driving condition (steering angle). When the steering angle is small, no trajectory is displayed. When the steering angle exceeds the threshold, the trajectory is displayed. This localized adaptation of information display provides spatial awareness precisely when the driver needs it for maneuvering, without causing continuous distraction.
2Loss of information
If multiple static orientation aids are displayed, then driver orientation during maneuvering is improved, but image clarity and focus are reduced
Solution Approach 1:
The patent uses dynamics to control the display of orientation aids based on steering angle. The trajectory information is dynamically added only when the steering angle exceeds the threshold, maintaining image clarity during normal driving while providing necessary orientation information during maneuvering situations.
Solution Approach 2:
The patent extracts the trajectory display function from the continuous static display and makes it conditional. By taking out the trajectory information and displaying it only when the steering angle threshold is exceeded, the system maintains clear images during normal driving while providing orientation aids when needed for maneuvering.
3Loss of information
If trajectory information is always displayed, then driver awareness of vehicle path is improved, but unnecessary irritation and distraction occur during straight driving
Solution Approach 1:
The patent applies dynamics by making the trajectory display conditional on the steering angle. The trajectory is dynamically displayed only when the steering angle exceeds the threshold value, providing path awareness during maneuvering while eliminating unnecessary irritation during straight driving when the steering angle is small.
Solution Approach 2:
The patent uses parameter changes by monitoring the steering angle as a control parameter. When the steering angle parameter exceeds the threshold, the trajectory is displayed. When it returns below the threshold, the trajectory is hidden. This parameter-based control provides path awareness information adaptively, reducing driver irritation by displaying information only when relevant to the current driving state.
Data Source
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AI summary
A vision system (1) for a vehicle (7) includes a recording unit (2) for recording a field of view (8) and a processing unit (3) adapted to generate displayable image data from the recorded image data and to deliver it to a display unit (4), wherein the displayable image data includes the field of view (8) recorded by the recording unit (2), the display unit (4) is adapted to display the displayable image data in a way that is visible to the driver of the vehicle (7), and the processing unit (3) is adapted to overlay at least one trajectory (10, 10') of a future driving path of the vehicle (7) into the displayable image data shown on the display unit (4) when a steering angle of the vehicle (7) has a predetermined value.