Autonomous Vehicle Route Curves for Smooth Steering Transitions
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Solution Overview
Problem
Autonomous driving systems create driving routes without considering the mechanical characteristics of the vehicle, leading to abrupt direction changes and uncomfortable travel.
Innovation Solution
A method and apparatus for creating driving routes by setting intermediate points between a start and end point, connecting them while considering the angle of movement and steering angle of the autonomous vehicle, ensuring smooth travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a driving route is created by simply connecting the start point and the end point, then the route creation process is simple and quick, but the autonomous vehicle may rush to change direction or travel uncomfortably due to not considering mechanical characteristics
Solution Approach 1:
The patent divides the direct path from start to end point into multiple segments by introducing intermediate points. These intermediate points are strategically positioned to account for the autonomous vehicle's mechanical characteristics such as steering angle limits and acceleration constraints, thereby creating a segmented route that ensures smooth and comfortable transitions while maintaining efficient overall travel.
Solution Approach 2:
The patent dynamically adjusts the route by considering the autonomous vehicle's mechanical characteristics in real-time. The system calculates optimal intermediate points based on the vehicle's steering angle capabilities, acceleration rates, and other dynamic parameters, allowing the route to adapt to the vehicle's physical constraints and ensure comfortable operation throughout the journey.
2Ease of operation
If intermediate points are set and connected considering angle of movement and steering angle, then smooth travel is achieved, but the route creation process becomes more complex
Solution Approach 1:
The patent implements a self-service mechanism where the autonomous vehicle's control system automatically calculates and determines the optimal intermediate points based on its own mechanical characteristics. The system uses the vehicle's steering angle limits, acceleration capabilities, and other intrinsic parameters to generate the route without requiring external manual intervention, thereby reducing operational complexity while ensuring driving comfort.
Solution Approach 2:
The patent changes key parameters such as steering angle, acceleration rate, and intermediate point positions to optimize the route for smooth travel. By dynamically adjusting these parameters based on the autonomous vehicle's mechanical characteristics, the system achieves comfortable operation while managing complexity through systematic parameter optimization rather than ad-hoc route planning.
Data Source
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AI summary
Provided are a method and apparatus for creating a driving route of an autonomous vehicle and a computer program therefor. A method of creating a driving route of an autonomous vehicle, the method being performed by a computing device, includes obtaining information about a start point and an end point, setting an intermediate point between the start point and the end point, and creating a driving route by connecting the start point, the set intermediate point, and the end point, wherein the driving route includes a set of a curve connecting the start point and the set intermediate point and a curve connecting the set intermediate point and the end point, is expressed by a polynomial function for an angle of movement of the autonomous vehicle, and satisfies one or more continuity conditions related to a curvature.