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Construction method and construction system of a traffic flow model

A technology of traffic flow model and construction method, applied in traffic control systems, traffic control systems of road vehicles, traffic flow detection, etc., can solve problems such as difficulty in implementation, and achieve the effect of reducing the difficulty of construction

Active Publication Date: 2022-06-03
SAIC MOTOR
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  • Abstract
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  • Application Information

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Problems solved by technology

Therefore, a test case-by-test approach to testing autonomous driving functions will be very difficult to implement

Method used

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  • Construction method and construction system of a traffic flow model
  • Construction method and construction system of a traffic flow model
  • Construction method and construction system of a traffic flow model

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Embodiment Construction

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0055] The embodiments of the present application provide a method for constructing a traffic flow model, such as figure 1 shown, including:

[0056] S101: Taking the motor vehicle as the center, dividing the area from the near to the far distance from the motor vehicle into a 3-dimensional area, a 2-dimensional area, a quasi-2-dimensional area, a 1-dimensional area, and a 0-dimensional area;

[0057] S102: Establish a relationship mode...

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Abstract

This application discloses a construction method and construction system of a traffic flow model. The construction method of the traffic flow model couples traffic flow models and vehicle models of different dimensions and scales, and adopts boundary conditions at the junction of traffic flow models of various dimensions Consistency processing achieves data continuity of traffic flow models of different dimensions and scales, making the entire traffic flow model describe a complete traffic flow. And the closer the position to the motor vehicle, the higher the dimension of the traffic flow model, the more detailed the model parameters and variables, and the farther the distance from the motor vehicle, the traffic flow model is simplified from the dimension, so as to achieve the goal of taking into account the simulation Traffic flow models for accuracy and computational efficiency purposes.

Description

technical field [0001] The present application relates to the technical field of vehicle engineering, and more particularly, to a construction method and construction system of a traffic flow model. Background technique [0002] With the continuous development of vehicle engineering technology, various assisted driving functions of motor vehicles continue to emerge. Among them, the function of autonomous vehicles (Self-driving automobile) has gradually become one of the important research and development directions of R&D personnel. [0003] Autonomous driving features can significantly improve the safety, comfort and economy of cars. However, due to the complexity and change of actual traffic conditions, how to test and verify the comprehensive performance of autonomous driving in the interactive environment of public roads is an important and yet to be solved task. [0004] In a dense urban traffic environment, the automated driving system under test will continuously int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/26G08G1/01
CPCG06Q10/067G06Q50/26G08G1/0125Y02T10/40
Inventor 罗悦齐王震张嵩张钊
Owner SAIC MOTOR
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