Routing Map Generation With Forward and Reverse Vehicle Guidance
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Solution Overview
Problem
Heavy-duty vehicles, particularly truck and trailer combinations, face challenges in maneuvering in narrow areas due to the complexity of reversing and navigating around obstacles, requiring advanced driver assistance systems for improved guidance.
Innovation Solution
A method for generating a routing map using a real-world map that includes forward and reverse guiding instructions for driving segments, utilizing graph theory to optimize vehicle paths and incorporating weight values based on driving direction, vehicle type, and obstacles to enhance efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If advanced driver assistance systems are used to assist drivers in challenging driving situations, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The routing map is segmented into multiple driving segments, each with specific guiding instructions. The path from start to destination is divided into discrete segments that can be independently processed and executed, making the complex maneuvering task more manageable and easier to operate.
Solution Approach 2:
The routing map is generated in advance with pre-calculated forward and reverse guiding instructions for each driving segment. This preliminary preparation of guidance information eliminates the need for complex real-time decision-making during actual maneuvering, improving ease of operation.
2Ease of operation
If only forward guiding instructions are provided for each driving segment, then the device complexity is reduced, but the ease of operation deteriorates in narrow areas requiring reverse maneuvering
Solution Approach 1:
The system explicitly provides both forward and reverse guiding instructions for driving segments. This inversion of the conventional one-directional approach enables vehicles to efficiently handle narrow areas and challenging maneuvers by selecting the appropriate direction (forward or reverse) for each segment, significantly improving maneuverability.
3Ease of operation
If the vehicle is guided to approach target destinations by reversing, then the ease of operation is improved for certain maneuvers, but the reliability decreases due to increased risk of collisions
Solution Approach 1:
Reverse guiding instructions are calculated and provided in advance along with forward instructions. The system prepares safe reverse paths with proper positioning information before the vehicle needs to execute them, allowing the driver to reverse with confidence and reduced collision risk.
Solution Approach 2:
The routing map provides continuous guiding instructions that give feedback to the driver during reverse maneuvers. This includes information about vehicle position, required steering adjustments, and proximity to obstacles, enabling the driver to make real-time corrections and maintain safety during reverse operations.
Data Source
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Figure 3
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AI summary
The invention relates to A method for generating a routing map (RM) of an area (1) to be used for guiding a vehicle (100) in the area (1), the method comprising: - obtaining (S1) a real-world map (RWM) of the area (1), which map comprises a driving network forming a graph with actual locations (A,... ,I) of the area (1), which actual locations are connected by driving segments (DS) along which the vehicle (100) is intended to be guided, wherein at least one of the actual locations (A,...,I) is a start location for the vehicle (100) and at least one of the actual locations (A,...,I) is a target destination for the vehicle (100); - generating (S2) the routing map (RM) by: - providing guiding instructions for the vehicle (100) for each driving segment (DS), wherein guiding instructions for at least one driving segment (DS) comprise forward guiding instructions for guiding the vehicle (100) in a forward direction of the vehicle (100) along the driving segment (DS), and wherein guiding instructions for at least another driving segment (DS) comprise reverse guiding instructions for guiding the vehicle (100) in a reverse direction of the vehicle along the driving segment (DS). The invention also relates to a method for guiding a vehicle, to a control unit and to a vehicle (100).