Parking Assist System with Obstacle-Aware Position Correction
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Solution Overview
Problem
Existing parking assist systems require driver input to shift the target parking position, which can be inefficient and may result in obstacles hindering door opening, especially if the driver is not familiar with the operation or if obstacles are present on one side of the vehicle.
Innovation Solution
A parking assist system that includes an external environment information acquiring device, a parking space extracting device, a display device, and a control device to autonomously move the vehicle to an appropriate parking position without driver input, using first and second external environment information to set and correct the target parking position based on obstacle detection and vehicle alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the target parking position is shifted to the side of the obstacle when an obstacle is detected, then the parking position can be adjusted, but the door opening may be hindered
Solution Approach 1:
The system detects obstacles around the vehicle using sensors, and based on this feedback information, automatically adjusts the target parking position to avoid obstacles while ensuring sufficient space for door opening. The system continuously monitors the environment and refines the parking position selection based on detected obstacle positions and vehicle dimensions.
Solution Approach 2:
The parking assist system automatically performs the function of selecting and adjusting the parking position without requiring driver input or manual operation. The system serves itself by autonomously analyzing the parking environment, calculating appropriate parking positions, and executing the parking maneuver, thereby eliminating the need for the driver to manually adjust the parking position while ensuring door accessibility.
2Adaptability or versatility
If the driver manually shifts the target parking position, then the parking position can be adjusted, but the operation becomes complex and time-consuming
Solution Approach 1:
The system autonomously performs the entire parking position adjustment process without requiring any manual intervention from the driver. The control device automatically detects obstacles, calculates multiple candidate parking positions, selects the most appropriate position, and executes the parking maneuver, thereby completely eliminating the time the driver would spend on manual position adjustment.
Solution Approach 2:
The system performs preliminary analysis of the parking environment before the actual parking maneuver, identifying potential obstacles and pre-calculating optimal parking positions. This preliminary action allows the system to have the parking position ready in advance, eliminating any delays during the execution phase and streamlining the overall parking process.
3Productivity
If the target parking position is set without considering the back side of the parking space, then the parking can be executed quickly, but the vehicle may not be properly aligned with parking space delimiting lines
Solution Approach 1:
The system uses sensor feedback to detect the position of parking space delimiting lines and obstacles on all sides of the parking space, including the back side. Based on this comprehensive feedback information, the control device calculates and adjusts the target parking position to ensure proper alignment with the delimiting lines while maintaining efficient parking execution.
Data Source
AI summary
A parking assist system includes: an external environment information acquiring device, a parking space extracting device, a display device, a selection input member, and a control device. The control device is configured to set a parking position candidate at a prescribed position in a parking space, to set the parking position candidate selected by a user as a target parking position, to calculate a first trajectory to the target parking position, and to execute a first driving process to autonomously move a vehicle along the first trajectory. The control device is configured to set a corrected parking position different from the target parking position, to calculate a second trajectory from the target parking position to the corrected parking position, and to execute a second driving process to autonomously move the vehicle along the second trajectory.