Automatic Parking Path Calculation on Slopes
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Solution Overview
Problem
Existing automatic parking systems fail to accurately determine and navigate around obstacles during reverse parking on slopes, requiring drivers to manually steer clear of obstacles, which is inconvenient and increases the risk of collision.
Innovation Solution
An automatic parking controlling apparatus and method that includes a parking space recognizing unit, a gradient angle calculating unit, and a parking path calculating unit to determine the gradient angle of the road surface and calculate sequential turning paths for reverse perpendicular parking, ensuring collision avoidance and safe alignment within the parking space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a general automatic parking system is used, then the system can sense obstacles and provide alarm, but it fails to generate an accurate path for avoiding obstacles, requiring driver intervention
Solution Approach 1:
The system performs self-service by automatically generating and executing obstacle avoidance paths without requiring driver intervention. The control unit calculates the avoidance path based on obstacle position and vehicle state, then autonomously controls steering to follow the path, making the system complete the parking task independently.
Solution Approach 2:
The system uses feedback from obstacle sensing units and vehicle state sensors to continuously adjust the avoidance path calculation. The control unit receives real-time data about obstacle positions and vehicle movement, then recalculates and updates the steering path dynamically to ensure safe and accurate parking execution.
2Productivity
If reverse perpendicular parking is attempted on a slope without gradient compensation, then the parking process can be initiated, but the vehicle may slip backwards or collide with obstacles due to inaccurate path calculation
Solution Approach 1:
The system changes the path calculation parameters by incorporating gradient angle compensation. The control unit adjusts the avoidance path based on the detected slope gradient, modifying steering angles and speed profiles to account for gravitational effects, thereby maintaining parking safety and accuracy on inclined surfaces.
Data Source
AI summary
Provided are an automatic parking controlling apparatus and method of a vehicle for effectively, safely parking a vehicle in a parking space. The automatic parking controlling apparatus of a vehicle includes a parking space recognizing unit configured to sense an obstacle on the side of a vehicle to recognize a parking space, a gradient angle calculating unit configured to calculate a gradient angle of a road surface by using a gradient of the vehicle and a degree to which the vehicle has slipped backwards according to a comparison between forward movement acceleration of the vehicle and a speed of the vehicle, a parking path calculating unit configured to calculate sequential turning paths for reverse perpendicular parking based on the calculated gradient angle of the road surface and the recognized parking space, and a control unit configured to control steering for reverse perpendicular parking according to the calculated sequential turning paths.