Vehicle Parking Assistance Synchronization
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Solution Overview
Problem
Existing vehicle parking and unparking systems often confuse drivers by simultaneously displaying a continuous tone warning of an imminent collision while visually indicating they should continue driving towards a reversal or stopping point, leading to potential collisions.
Innovation Solution
An assistance system that calculates a vehicle's trajectory and uses synchronized distance measurement data to provide a progress indicator, such as an acoustic tone sequence, haptic vibrations, or visual displays, ensuring the warning of an imminent collision is generated only when the vehicle is within a predetermined threshold distance from an obstacle, preventing premature warnings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a continuous tone warning is generated to alert the driver of an imminent collision, then the driver is warned of potential danger, but the driver receives conflicting information when the visual display simultaneously signals to continue driving towards the reversal point
Solution Approach 1:
The system pre-calculates and displays the distance to the reversal point before the maneuver begins, allowing the driver to know in advance where the vehicle will stop. This preliminary information prevents confusion when the continuous tone warning later indicates the vehicle is approaching an obstacle, as the driver already understands the intended stopping point from the progress indicator.
Solution Approach 2:
The progress indicator acts as an intermediary element between the trajectory calculation system and the continuous tone warning system. It translates the complex trajectory data into a simple, intuitive visual representation that shows the driver how close the vehicle is to the reversal point, mediating the conflict between safety warnings and guidance information.
2Ease of operation
If the progress indicator shows the distance to the reversal point continuously, then the driver has continuous guidance, but the warning message may be generated prematurely before the actual reversal point is reached
Solution Approach 1:
The system replaces the mechanical/physical reference of the reversal point (a fixed location in space) with a dynamic progress indicator that is continuously updated based on real-time distance measurements. This substitution allows the warning system to use the same sensor data to both update the progress indicator and determine when to generate the continuous tone warning, ensuring consistency between guidance and warning functions.
Solution Approach 2:
The system uses feedback from distance measurement sensors to continuously update both the progress indicator and the warning condition. The sensors provide real-time feedback about the vehicle's position relative to obstacles, allowing the system to adjust the progress indicator display and determine the appropriate moment to generate warnings based on actual measured distances rather than pre-calculated estimates.
3Measurement precision
If the progress indicator is synchronized with distance measurement sensors, then the information displayed matches the actual vehicle position, but additional sensors and synchronization logic are required
Solution Approach 1:
The distance measurement sensors serve multiple functions: they provide data for updating the progress indicator display, determine when to generate continuous tone warnings, and verify the vehicle's position relative to obstacles. By making the sensors multi-functional, the system achieves high measurement precision without adding separate dedicated sensors for each function, thereby limiting the increase in device complexity.
Solution Approach 2:
The system merges the progress indicator update function and the collision warning function into a single integrated process that uses the same sensor data. Instead of having separate systems that independently process distance information, the patent combines these functions so that one set of sensors feeds both the guidance display and the safety warning system, reducing overall system complexity while maintaining precision.
Data Source
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AI summary
The method involves automatically detecting distance of a vehicle upto a point, where the vehicle is stopped at the point during a parking or unparking process of an assistance system. A progress indication (5) is produced corresponding to the distance. The progress indication is automatically synchronized during the parking process or unparking process with information from results of measurement of a spacer measuring sensor of the vehicle. A predetermined warning distance of the vehicle to an obstacle is realized at a point that corresponds to the progress indication. An independent claim is also included for an assistance system for a vehicle comprising a device to produce progress indication.