Battery Swap Station Auto Parking Using Ground Mark Positioning
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Solution Overview
Problem
The challenge in the popularization of electric vehicles lies in insufficient endurance mileage and time-consuming charging, which can be mitigated by battery replacement, but manual parking in narrow battery swap stations requires skilled drivers and poses safety risks due to the potential for collisions.
Innovation Solution
A system and method for automatically parking a vehicle in a battery swap station using an image acquiring unit to determine the vehicle's position relative to prearranged ground marks, calculating a precise parking path, and controlling the vehicle to safely enter the swap space, avoiding collisions through high-precision positioning and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual parking is used in battery swap station, then driver skill requirement is high and collision risk increases, but automatic parking system adds device complexity
Solution Approach 1:
The system enables the vehicle to park itself automatically using onboard image acquisition devices, control units, and path planning algorithms. The vehicle independently detects ground marks, calculates parking paths, and executes parking maneuvers without human intervention, making the system self-sufficient and eliminating the need for skilled drivers while maintaining safety.
Solution Approach 2:
The patent replaces manual mechanical parking operations with an automated system combining image acquisition (optical), computer vision processing (information processing), and vehicle control (electromechanical). The control unit processes images to detect ground marks, calculates parking paths algorithmically, and controls vehicle movement automatically, substituting human mechanical skill with automated sensing and control systems.
2Measurement precision
If automatic parking path planning is implemented, then parking accuracy improves, but calculation complexity and processing time increase
Solution Approach 1:
The system pre-arranges ground marks in the battery swap station before vehicles arrive. These ground marks serve as predetermined reference points that simplify real-time processing. The control unit only needs to detect the pre-placed marks and calculate the path from current position to the marked target, rather than performing complex environmental mapping and target identification during parking.
Solution Approach 2:
The system uses ground marks as simplified copies or representations of the parking target location. Instead of processing complex 3D spatial information about the entire parking environment, the control unit detects 2D ground mark patterns and uses them as reference copies to determine vehicle position and calculate parking paths, significantly reducing computational complexity while maintaining accuracy.
3Area of stationary object
If narrow battery swap parking spaces are used, then land utilization improves, but manual parking difficulty and collision risk increase
Solution Approach 1:
The system continuously acquires images during the parking maneuver and compares the vehicle's actual position with the calculated parking path. The control unit adjusts the vehicle's movement in real-time based on feedback from image processing, ensuring accurate positioning even in narrow spaces. This closed-loop control enables precise parking in compact areas that would be difficult to navigate manually.
Solution Approach 2:
The patent employs dynamic path planning that adapts to the vehicle's actual movement and positioning. The control unit calculates optimal parking paths considering the vehicle's dimensions, speed, and position relative to ground marks, adjusting the path dynamically during execution. This dynamic approach enables efficient use of narrow parking spaces by optimizing the vehicle's trajectory in real-time.
Data Source
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Figure 3
AI summary
Provided are a system (100) and method (S100) for automatically parking a vehicle into a battery swap parking space within a battery swap station, and an electric vehicle. The system (100) comprises an image acquiring unit (101) configured to acquire an image of the ground around a vehicle, and a control unit (102) configured to determine, on the basis of the acquired image, whether the vehicle is located within a parking start area determined by means of prearranged first ground marks, to determine a position of the vehicle relative to the first ground marks if it is determined that the vehicle is located within the parking start area, to determine, on the basis of the position, a parking path for traveling from the position to the battery swap parking space in the battery swap station, and to control the vehicle to perform a parking operation according to the parking path; optionally, the system (100) may further comprise a display unit (103) for displaying notification information regarding adjustment of the position of the vehicle to a diver if the control unit (102) determines that the vehicle is not located within the parking start area.