Parking Assistance Device Obstacle Detection and Control
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Solution Overview
Problem
Existing parking assistance devices may fail to detect obstacles in advance due to their position, size, or shape, leading to potential collisions during vehicle parking.
Innovation Solution
A parking assistance device comprising an obstacle detection unit, a target determination unit, and a movement control unit that detects obstacles and adjusts the vehicle's position and inclination angle to ensure safe parking, terminating assistance when the vehicle is within specific ranges and detects an obstacle's approach.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the parking assistance device determines a route and controls the vehicle to park in the target area, then the parking assistance function is provided, but the vehicle may approach or collide with obstacles that cannot be detected in advance due to their position, size, and shape
Solution Approach 1:
The system performs preliminary actions by continuously monitoring vehicle position and inclination angle during the parking process, and prepares to terminate assistance before a collision occurs. The control unit is ready to end parking assistance when predetermined conditions are met, preventing the vehicle from approaching undetected obstacles.
Solution Approach 2:
The system uses feedback by continuously detecting the vehicle's position and inclination angle relative to the target area, and uses this information to determine whether to continue or terminate parking assistance. This feedback mechanism allows the system to respond to changing conditions and avoid collisions with undetected obstacles.
2Measurement precision
If the obstacle detection unit uses various sensors to detect obstacles, then obstacle detection capability is improved, but obstacles at certain positions or with certain sizes may still not be detected
Solution Approach 1:
The system uses the vehicle's position and inclination angle as intermediary parameters to indirectly detect potential collision risks. Instead of relying solely on direct obstacle detection sensors that may fail, the system monitors these intermediary parameters and terminates parking assistance when they indicate approaching undetected obstacles.
3Extent of automation
If the vehicle travels along the determined route, then the parking process is automated, but the vehicle may approach obstacles that were not detected during initial scanning
Solution Approach 1:
The system applies dynamics by continuously monitoring the vehicle's state during the parking process and dynamically adjusting the level of automation. When predetermined conditions indicate potential collision risk, the system transitions from automatic control to manual control by terminating parking assistance, allowing the driver to take over and avoid the obstacle.
Data Source
AI summary
A parking assistance device includes: an obstacle detection unit detecting an obstacle; a target determination unit determining a target area; a route determination unit determining a route from a position of a vehicle to the target area when assisting a driver in parking the vehicle in the target area; and a movement control unit assisting the driver by detecting the position and an inclination angle of the vehicle and controlling the vehicle, terminating the assist when the position is within a first range, the inclination angle is within a second range, and the position is within a third range, and terminating the assist when, while the vehicle travels, the position is within the first range, the inclination angle is within the second range, the position is outside of the third range, and the approach of an obstacle is detected.