Vehicle Parking Trajectory Calculation for Tight Spaces
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Solution Overview
Problem
In tight parking environments, vehicles face challenges in performing perpendicular or angled parking maneuvers due to limited space for maneuvering outside the parking space, making it difficult for drivers to find a location to steer away from the parking space without colliding with objects.
Innovation Solution
A method that uses sensor information to determine a second location from which the vehicle can move straight backward without changing its steering angle, allowing it to exit the parking space at a maximum steering angle without colliding with objects, using calculations based on trigonometry and sensor data to identify a safe trajectory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle performs traditional parking maneuvers in tight environments, then the parking function can be operated, but the driver cannot easily find a location to steer away from the parking space without colliding with objects
Solution Approach 1:
The system performs preliminary calculation of the second location using sensor data and trigonometric computations before the driver attempts the parking maneuver. This advance determination ensures the vehicle can steer away from the parking space without collision, resolving the contradiction by preparing the safe trajectory in advance rather than relying on driver judgment in the moment
2Ease of operation
If the vehicle moves backward from the first location to the second location without changing steering angle, then the movement is simplified and automated, but the space requirements for this straight backward movement must be precisely calculated
Solution Approach 1:
The system replaces manual driver judgment and mechanical trial-and-error with automated sensor-based detection and trigonometric calculations. The processing device computes the second location coordinates using sensor data about the parking space and surrounding objects, then guides the vehicle along the calculated straight backward path, eliminating the need for driver skill while ensuring safety
3Productivity
If the vehicle uses maximum steering angle to reach the third location from the second location, then the parking maneuver is completed efficiently, but the trajectory must be precisely calculated to avoid collision with objects
Solution Approach 1:
The system uses sensor feedback to continuously monitor the vehicle's position and the surrounding environment. Based on this feedback, the processing device calculates the optimal second location that enables maximum steering angle movement to the third location while guaranteeing no collision with objects. The feedback loop ensures both efficiency and safety by adapting the trajectory to actual environmental conditions
Data Source
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AI summary
Method and vehicle (1) to operate an at least assisted perpendicular or angled parking function for the vehicle (1). The vehicle (1) has at least partially passed a perpendicular or angled parking space (11) and an object (12) and is located at a first location (16). The method comprises determining (S5) a second location (17) reachable from the first location (16) by moving the vehicle (1) at least partially straight backwards, , wherein at the second location (17) the vehicle (1) is movable backwards away from the parking space (11) with a maximal steering angle of a steering system (3) of the vehicle (1) without collision with the object (12) to prepare parking into the parking space (11); and operating (S6) the vehicle (1) at least assisted to move the vehicle (1) from the first location (16) to the second location (17).