Parking Trajectory Adjustment for Reliable Space Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current driver assistance systems for parking vehicles are not sufficiently reliable in identifying and navigating to free parking spaces, especially in complex outdoor or multi-storey parking areas, often requiring cumbersome and time-consuming maneuvers, and may not prevent collisions with parked objects.
Innovation Solution
A method that adjusts the driving trajectory to be closer to the row of parking spaces when a free space is detected, using environmental data from sensors or external databases, to provide an optimal starting position for parking, and can be implemented semi-autonomously or autonomously, with visual and acoustic feedback to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor vehicle is moved along a predetermined travel trajectory that maintains a safe distance from parking spaces, then collision risk is reduced, but the distance to free parking spaces increases making parking maneuvers more complex and time-consuming
Solution Approach 1:
The travel trajectory is dynamically adapted based on real-time environmental data. The system transitions from a predetermined safe trajectory to an adapted trajectory that optimizes positioning for parking. This dynamic adjustment allows the vehicle to first maintain safety distance, then approach the parking space optimally when ready to park, resolving the contradiction between safety and parking ease.
Solution Approach 2:
The system performs preliminary detection of free parking spaces using environmental data before committing to a parking maneuver. By identifying suitable parking spaces in advance and planning the adapted trajectory beforehand, the system prepares optimal parking positions without requiring complex last-minute maneuvers, thus easing operation while maintaining safety.
2Device complexity
If the motor vehicle follows a predetermined travel trajectory that does not account for real-time environmental changes, then the driving path is simple and predictable, but the system cannot reliably identify or navigate to free parking spaces
Solution Approach 1:
The system continuously receives environmental data about the parking area and uses this feedback to adapt the travel trajectory in real-time. Sensors detect free parking spaces, obstacles, and environmental conditions, and this information feeds back to modify the trajectory. This feedback mechanism ensures reliable parking space identification while keeping the trajectory planning adaptable rather than overly complex.
Solution Approach 2:
The travel trajectory system serves multiple functions: it provides a predetermined safe path for general navigation, detects free parking spaces using environmental sensors, and adapts to optimize parking positioning. This multi-functionality allows a single system to handle both simple navigation and complex parking tasks reliably without requiring separate specialized systems.
3Measurement precision
If the motor vehicle approaches parking spaces more closely during the driving phase, then parking space detection improves, but the risk of collision with parked objects increases
Solution Approach 1:
The system dynamically adjusts the distance to parking spaces based on the operational phase. During the approach phase, it maintains a safe distance to minimize collision risk. When parking maneuver begins and environmental data confirms a free space, it transitions to a closer adapted trajectory for precise positioning. This dynamic phase-based adjustment resolves the contradiction between detection precision and collision risk.
Solution Approach 2:
The system uses environmental data and trajectory adaptation as an intermediary between the vehicle and parking spaces. Rather than directly approaching parking spaces at close range, the system first identifies free spaces through environmental sensing, then uses adapted trajectory planning as an intermediate step to position the vehicle optimally before executing the parking maneuver, thus reducing direct collision risk while maintaining detection precision.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a method for assisting a driver in parking a motor vehicle (1) comprising the steps of: moving the motor vehicle (1) along a driving lane (11) along a predetermined driving trajectory (15, 16), wherein the driving lane (11) is bounded by at least one row of parking spaces (9) and wherein the at least one row of parking spaces (9) comprises a plurality of parking spaces (10) for the motor vehicle (1); receiving environmental data describing an environment (4) of the driving lane (11) by means of a receiving device (3) of the motor vehicle (1); determining whether the at least one of the driving lanes (11) has a free parking space (18) based on the received environmental data by means of an evaluation device (5) of the motor vehicle (1); and adjusting the predetermined driving trajectory (15, 16) if a free parking space (18) is determined, wherein an adjusted driving trajectory (17) is compared to the predetermined Travel trajectory (15,16) at least in sections has a smaller distance to at least one row of parking spaces (9) (S5).,