Parking Aid System Filtering Obstacle Alerts by Predicted Path

Solution Overview

Problem

Existing parking aid systems overwhelm drivers with irrelevant obstacle presence information during low-speed maneuvers, as they provide indications regardless of collision risk, leading to driver confusion and increased stress during parking operations.

Innovation Solution

A system that provides visual and audible indications only for obstacles within the predicted vehicle path, using a visual display panel and audio transducer to indicate distance and position, while distinguishing obstacles outside the path through color, brightness, and iconic forms on a 360-degree radius around the vehicle, thereby reducing irrelevant information and focusing driver attention on potential collision risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the system provides audible indications for all detected obstacles, then complete obstacle information is provided to the driver, but driver confusion and stress increase due to irrelevant information

Engineering Contradiction:

Improveobstacle information completenessVSAvoiddriver stress and confusion

Core Design Contradiction:

Loss of informationVSEase of operation

Solution Approach 1:

The system segments obstacle information into two distinct categories: obstacles in the predicted path (collision risk) and obstacles outside the predicted path (no immediate collision risk). This segmentation allows the system to provide different types of indications for different obstacle categories, thereby providing complete information while reducing driver confusion by filtering out irrelevant alerts.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system applies different indication qualities to different obstacles based on their spatial relationship to the predicted path. Obstacles in the predicted path receive audible indications with distance information, while obstacles outside the path receive only visual indications. This local differentiation ensures that critical information is highlighted without overwhelming the driver with non-critical alerts.

Inventive Principle:

Principle #3Local quality

2Reliability

If the system provides audible indications for all obstacles, then driver awareness of all obstacles is improved, but relevant collision risk information is diluted among irrelevant alerts

Engineering Contradiction:

Improvedriver situational awarenessVSAvoidcollision risk information relevance

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The system segments obstacle information into two distinct categories: obstacles in the predicted path (collision risk) and obstacles outside the predicted path (no immediate collision risk). This segmentation allows the system to provide different types of indications for different obstacle categories, thereby providing complete information while reducing driver confusion by filtering out irrelevant alerts.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system applies different indication qualities to different obstacles based on their spatial relationship to the predicted path. Obstacles in the predicted path receive audible indications with distance information, while obstacles outside the path receive only visual indications. This local differentiation ensures that critical information is highlighted without overwhelming the driver with non-critical alerts.

Inventive Principle:

Principle #3Local quality

3Reliability

If the system provides visual indications for all obstacles, then complete spatial awareness is achieved, but driver attention is分散 among non-critical obstacles

Engineering Contradiction:

Improvespatial awareness completenessVSAvoiddriver attention focus

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system applies different indication qualities to different obstacles based on their spatial relationship to the predicted path. Obstacles in the predicted path receive audible indications with distance information, while obstacles outside the path receive only visual indications. This local differentiation ensures that critical information is highlighted without overwhelming the driver with non-critical alerts.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system extracts and removes audible indications for obstacles that do not lie in the predicted path, keeping only visual indications for these obstacles. This extraction of irrelevant audible alerts allows the system to maintain complete visual spatial awareness while eliminating distracting non-critical alerts that would分散 driver attention.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP2948361B1Motor vehicle system and method

Publication Date: 2018.05.09 JAGUAR LAND ROVER LTD

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AI summary

Embodiments of the invention provide a motor vehicle system, the system being operable to provide a visual indication to a driver of the vehicle of the position relative to the vehicle of one or more obstacles that lie in the vicinity of the vehicle, to predict a path of a vehicle by reference to a position of a steering wheel or steerable road wheel of the vehicle,and to determine whether any obstacles in the vicinity of the vehicle lie in the predicted path by reference to data in respect of the location of such obstacles, wherein if the system determines that one or more obstacles lie in the predicted path the system is operable to provide an audible indication to a driver of the vehicle of a distance of one or more obstacles from the vehicle according to a distance from the vehicle of an obstacle that lies in the predicted path.