Parking Path Joining for Flexible Automated Parking Start
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Solution Overview
Problem
Conventional parking assistance systems are limited in starting automated parking from a position different from the parking-lot-exiting end position, restricting the flexibility and convenience of parking operations.
Innovation Solution
A parking assistance device that records a first path based on teacher traveling from a parking position to a parking-lot-exiting position and generates a second path to join the vehicle to the first path, enabling automated traveling from any position to the parking position, using a processor and memory to control the vehicle's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If automated parking starts only from the parking-lot-exiting end position, then the system is simple to implement, but the flexibility and convenience of parking operations is restricted
Solution Approach 1:
The path generation is divided into two segments: a first path recorded from the parking position to the parking-lot-exiting position during teacher traveling, and a second path generated to connect the current vehicle position to a joining point on the first path. This segmentation allows the system to start automated parking from any position while reusing the pre-recorded first path, thereby increasing flexibility without proportionally increasing system complexity.
Solution Approach 2:
The first path is recorded in advance during teacher traveling before actual automated parking operations. This preliminary action stores the reference trajectory from parking position to exiting position, which can then be reused multiple times. When automated parking is needed from different positions, the system only needs to generate a second path to join the pre-recorded first path, rather than recording complete new paths each time.
2Ease of operation
If the vehicle must reach the parking-lot-exiting end position before starting automated parking, then the path recording is simple, but the user convenience and stress reduction is limited
Solution Approach 1:
The system records the first path in advance during teacher traveling, storing the reference trajectory from parking position to parking-lot-exiting position. This preliminary path recording enables the vehicle to start automated parking from any position along or near the recorded path, eliminating the need for manual positioning to the specific parking-lot-exiting end position and reducing user time and effort.
Solution Approach 2:
The second path acts as an intermediary that connects the vehicle's current position to a joining point on the pre-recorded first path. This intermediary path enables seamless transition from arbitrary start positions to the established first path, allowing automated parking to begin without requiring the vehicle to manually navigate to the parking-lot-exiting end position first.
3Adaptability or versatility
If automated parking uses only pre-recorded paths from fixed positions, then the system complexity is low, but the adaptability to different starting positions is poor
Solution Approach 1:
The path system is segmented into a reusable first path (recorded during teacher traveling) and a dynamic second path (generated to connect current position to the first path). This segmentation allows the system to maintain a simple pre-recorded first path while adding adaptability through the second path, which is generated only when needed to join arbitrary start positions to the established first path.
Solution Approach 2:
The first path recorded during teacher traveling serves multiple functions: it can be reused for automated parking from various starting positions, and it serves as a reference for generating second paths. This multi-functionality increases system adaptability without requiring separate path recordings for each possible start position, thereby managing complexity efficiently.
Data Source
AI summary
A parking assistance device according to the present disclosure includes a memory and a processor coupled to the memory. The processor is configured to: record a first path based on teacher traveling in which a vehicle moves from a parking position to a parking-lot-exiting position by manual driving of a driver; generate a second path for causing the vehicle to travel from a first position where the vehicle is positioned to a joining point onto the first path; and cause the vehicle to perform automated traveling from the first position to the parking position based on the first path and the second path.