Parking Slot Selection for Stop-Free Automatic Parking

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Solution Overview

Problem

Existing parking assistance devices require vehicles to stop before parking can be automatically completed, which is inconvenient and can cause frustration, especially in situations where vehicles are parked one after another in forward parking.

Innovation Solution

A parking assistance device that includes a parking slot detector, an operation receiver, and a travel controller, allowing for automatic parking without requiring the vehicle to stop. The device determines if a parking slot corresponds to a parking instruction based on its location relative to the vehicle's travel direction and any direction instructions provided.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the vehicle stops to allow the driver to look and operate the parking assistance device, then the driver can select the target parking position from displayed available parking positions, but the parking process becomes interrupted and time-consuming

Engineering Contradiction:
Improvedriver ability to select parking positionVSAvoidvehicle stop time during parking
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system uses the vehicle's existing travel direction and detected parking slot positions to automatically determine the target parking position without requiring driver intervention for selection. The travel controller autonomously selects which parking slot to use based on the vehicle's current trajectory and the locations of available parking slots relative to the travel direction.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If the vehicle stops in a crowded parking passage to allow parking operation, then the driver can operate the parking assistance device, but the following vehicle may honk and the parking process becomes inefficient

Engineering Contradiction:
Improvedriver ability to operate parking deviceVSAvoidparking throughput in crowded area
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system performs preliminary detection of parking slots and determines the target parking position while the vehicle is still moving through the passage. By the time the vehicle reaches the appropriate position for parking execution, the target slot has already been selected, allowing continuous movement without stopping for operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The travel controller autonomously determines the target parking position based on detected parking slots and vehicle travel direction, eliminating the need for driver operation that would require stopping in the crowded passage.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If the system requires driver operation to select parking position, then the driver can confirm the parking slot, but the driver must stop the vehicle to look at and operate the display

Engineering Contradiction:
Improvedriver confirmation of parking slotVSAvoidvehicle speed during parking process
Core Design Contradiction:
Measurement precisionVSSpeed

Solution Approach 1:

The system automatically determines the target parking position using the vehicle's travel direction and detected parking slot locations, eliminating the need for driver visual confirmation and manual selection. The travel controller makes the determination autonomously based on the relationship between the vehicle's movement direction and the positions of available parking slots.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250026336A1Parking assistance device, parking assistance method, and parking assistance recording medium
Publication Date: 2025.01.23 PANASONIC AUTOMOTIVE SYST CO LTD
  • US20250026336A1 patent drawing
  • US20250026336A1 patent drawing
  • US20250026336A1 patent drawing

AI summary

A parking assistance device includes: a parking slot detector that detects a parking slot; an operation receiver that receives a parking instruction operation of a passenger of a vehicle; and a travel controller that performs automatic parking of the vehicle in a parking slot corresponding to the parking instruction operation. When the parking slot is located on only one of left and right sides in a travelling direction of the vehicle, or when the parking instruction operation is a parking instruction operation including a direction instruction and the parking slot is located in a direction instructed by the parking instruction operation, in a case where the parking slot is located in a predetermined range in the travelling direction of the vehicle, it is determined that the parking slot corresponds to the parking instruction operation.