Autonomous Parking Triggering by Vehicle Position and Azimuth
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Solution Overview
Problem
Conventional parking assistance technologies often require time to initiate automatic parking after a vehicle arrives near the target position, and may annoy users by starting guidance prematurely, especially when they do not intend to park.
Innovation Solution
A parking assistance method that determines the vehicle's orientation and position relative to a prescribed azimuth and calling point, allowing for smooth preparation and notification of parking assistance before the vehicle reaches the target position, using a system that includes GPS, azimuth sensors, and image processing for autonomous travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If parking assistance preparations are started early, then productivity is improved, but user annoyance increases due to unnecessary notifications
Solution Approach 1:
The system changes the parameter of notification triggering from a fixed distance threshold to a dynamic condition based on detected parking intention. When parking intention is detected, the system activates parking assistance preparations; when no parking intention is detected, it suppresses unnecessary notifications. This parameter change resolves the contradiction by making the system responsive to user context rather than operating on a rigid schedule.
2Object-affected harmful factors
If parking assistance is activated only after vehicle arrival, then user annoyance is reduced, but loss of time increases due to delayed preparation
Solution Approach 1:
The system performs preliminary actions by detecting parking intention in advance and activating parking assistance preparations before the vehicle actually arrives at the parking location. The determination unit detects when the vehicle is heading toward a parking area, and the control unit proactively starts preparations, including notifying the user in advance. This preliminary action reduces the wait time when the user actually wants to park, while the intelligent detection prevents unnecessary early activations that would cause annoyance.
3Ease of operation
If distance threshold is used for triggering parking assistance, then ease of operation is improved, but measurement precision is insufficient to distinguish actual parking intent
Solution Approach 1:
The system transitions from a one-dimensional distance-based triggering mechanism to a multi-dimensional detection approach. Instead of relying solely on distance thresholds, the determination unit analyzes multiple dimensions including vehicle trajectory, speed patterns, and temporal behavior to detect parking intention. This dimensional expansion enables precise distinction between vehicles genuinely heading to park versus those merely passing by, resolving the contradiction between operational simplicity and detection accuracy.
Data Source
AI summary
A parking assistance method according to the present disclosure is a method of performing autonomous travel of a vehicle based on a travel route generated using teaching travel by a driver. The parking assistance method including: acquiring as absolute position and an azimuth is the a travel direction of the vehicle; and determining, based on the absolute position and the azimuth in the travel direction, whether or not the vehicle is located oriented with a prescribed azimuth in a prescribed position, which are registered in association with the travel route.