Parking Assistant L-Shaped Guidance Lines
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Solution Overview
Problem
Existing parking assistant systems are complex and not intuitive, requiring multiple steps and leaving the driver to choose from multiple starting positions, increasing the likelihood of error, especially when obstacles are absent or not clearly defined.
Innovation Solution
A parking assistant system that uses L-shaped lines of assistance to define an ideal parking area, allowing the driver to identify a single correct starting position and complete the maneuver in two steps, with the system comprising a video camera, control unit, and sensor to superimpose guidance lines on the rear scene display, ensuring the vehicle intersects the ideal area only on its outer side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple starting positions are provided for parking maneuvers, then the driver has more flexibility to choose a position, but the complexity of the system increases and the driver is more induced to error
Solution Approach 1:
The patent extracts only the essential starting position information needed for parking, removing unnecessary multiple position options. The system displays a single correct starting position marked by a specific graphical symbol, eliminating the confusion caused by providing multiple possible starting positions while maintaining the necessary flexibility for the driver to execute the maneuver.
Solution Approach 2:
Instead of providing multiple starting positions and letting the driver choose, the system inverts the approach by calculating and displaying the single correct starting position that guarantees successful parking. This inversion simplifies the driver's task by removing the need to evaluate multiple options and reduces errors associated with incorrect position selection.
2Manufacturing precision
If multiple steps are required for the parking maneuver, then the vehicle can be positioned accurately, but the maneuver becomes laborious and complex
Solution Approach 1:
The system performs preliminary calculation of the exact starting position and required steering angle before the maneuver begins. By pre-computing and displaying the correct starting position with graphical markers, the system eliminates the need for multiple trial-and-error steps, allowing the driver to execute the parking maneuver in fewer, more straightforward actions while maintaining positioning accuracy.
Solution Approach 2:
The system provides continuous visual feedback through graphical markers that show the driver's current position relative to the ideal starting position. This feedback mechanism guides the driver to align the vehicle correctly in real-time, reducing the number of corrective steps needed and simplifying the overall maneuver while ensuring accurate final positioning.
3Productivity
If the driver must follow a rectilinear stretch in reverse, then the vehicle can reach the parking space, but the maneuver becomes more laborious and error-prone
Solution Approach 1:
The system dynamically adjusts the guidance information based on the driver's current vehicle position and orientation. Rather than requiring a fixed rectilinear reverse path, the system provides real-time updates on the correct starting position and steering angle, allowing the driver to execute a more natural, dynamic maneuver that reduces effort and error while still achieving successful parking completion.
Data Source
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AI summary
A parking assistant system for assisting the driver in a reverse manoeuvre to park the vehicle at the roadside parallel to the direction of the road in a parking space between a first obstacle and a second obstacle, which define, respectively, the front limit and the rear limit of said space with respect to the body of the vehicle, the system comprising: means for detection of the rear scene; means for display of the image of the detected scene; control means designed to superimpose on said image at least one line of assistance for the manoeuvre, which is mobile with the vehicle with respect to the image detected, which provides a reference for the driver on the correct longitudinal and transverse position of the vehicle, with respect to the aforesaid obstacles, for starting the aforesaid reverse-parking manoeuvre.