Forward Parking Strategy Using Object Position and Indicator Signals

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Solution Overview

Problem

Existing parking assistance systems require prior knowledge of the perpendicular parking space dimensions and location, making it difficult to initiate a successful forward parking process without initial measurement.

Innovation Solution

A method and device that detect objects in the vehicle's surroundings, classify their positions, and select a situation-related parking strategy based on the combination of object position and flashing indicator light state, allowing for forward parking into an assumed perpendicular space without prior measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If prior measurement and knowledge of perpendicular parking space dimensions and location is required, then parking assistance can be provided with high precision, but the ease of operation deteriorates because the system cannot be initiated without initial measurement

Engineering Contradiction:
Improveparking space detection precisionVSAvoidparking initiation ease
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system performs preliminary classification of detected objects into sectors (front-left, front-right, rear-left, rear-right) and combines this with indicator light status to pre-determine parking strategies before the actual parking maneuver begins. This preliminary classification enables the system to be ready to assist immediately when parking is initiated, without requiring prior measurement of the parking space.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The parking assistance system uses the vehicle's own indicator light signals and sensor-detected objects to automatically determine the parking strategy and execute the parking maneuver. The system serves itself by using its own operational signals (indicator lights) and environmental detections to guide the parking process, eliminating the need for external measurement tools or prior space characterization.

Inventive Principle:
Principle #25Self-service

2Reliability

If the parking strategy is fixed based on pre-known parking space information, then the reliability of parking assistance is improved, but the adaptability deteriorates because the system cannot adjust to different situations

Engineering Contradiction:
Improveparking assistance reliabilityVSAvoidparking strategy adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The parking strategy is made dynamic by continuously monitoring the vehicle's position, detected objects, and indicator light status during the parking maneuver. The control unit adjusts the steering angle and parking trajectory in real-time based on the current situation, allowing the system to adapt to different parking space configurations and obstacles while maintaining reliable assistance throughout the process.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system implements feedback by continuously detecting objects and their positions relative to the vehicle during the parking maneuver, comparing the actual position with the target parking position, and adjusting the parking strategy accordingly. This closed-loop control ensures both reliability (by correcting deviations) and adaptability (by responding to changing conditions).

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If comprehensive object detection and classification is performed to enable situation-related parking strategies, then the adaptability of the system is improved, but the device complexity increases

Engineering Contradiction:
Improveparking strategy adaptabilityVSAvoiddetection and classification system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The detection space around the vehicle is segmented into distinct sectors (front-left, front-right, rear-left, rear-right), and objects are classified based on which sector they occupy. This segmentation simplifies the complexity by providing a structured framework for object classification, making it easier to determine appropriate parking strategies without requiring complex analysis of every possible object position.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9771069B2Method and device for the forward parking of a motor vehicle into a perpendicular parking space
Publication Date: 2017.09.26 VOLKSWAGEN AG
  • US9771069B2 patent drawing
  • US9771069B2 patent drawing
  • US9771069B2 patent drawing

AI summary

A method and a device for the forward parking of a motor vehicle into a perpendicular parking space, wherein the motor vehicle includes an apparatus for detecting objects in the environment of the motor vehicle. The method includes detecting an object in the environment of the motor vehicle; determining the position of the object in relation to the motor vehicle; selecting a situation-dependent parking strategy as a function of the combination of the position of the object in relation to the motor vehicle and the turn signal position “left”, “right”, or “neutral” under the assumption of a perpendicular parking space next to the detected object; and performing a parking process on the basis of the situation-dependent parking strategy.