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Automobile intelligent overtaking method and system

A smart, automotive technology

Active Publication Date: 2017-04-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overtaking is a relatively common behavior during driving. However, in a short overtaking time, it is difficult for the driver to observe the conditions of all surrounding vehicles and predict the trajectory of the vehicle in front, so traffic accidents are prone to occur

Method used

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  • Automobile intelligent overtaking method and system
  • Automobile intelligent overtaking method and system
  • Automobile intelligent overtaking method and system

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Embodiment

[0052] Such as figure 1 Shown, a kind of automobile intelligent overtaking method comprises the following steps:

[0053] A kind of automobile intelligent overtaking method, comprises the following steps:

[0054] 1) Turn on the overtaking system, the on-board radar acquires the position information of the surrounding vehicles of the vehicle, and select a fixed point as the origin, the front of the vehicle is the Y axis, the right of the vehicle is the X axis, and a plane coordinate system is established;

[0055] 2) Judging whether the overtaking condition is satisfied, if so, proceed to step 3), if not, then wait for a radar acquisition cycle, and then return to step 2) The overtaking condition includes:

[0056] (1) There are no other vehicles within the range of -3 to 0m on the X axis and -50 to 250m on the Y axis of the vehicle;

[0057] (2) The distance between the two vehicles directly in front of the vehicle is greater than or equal to 200m;

[0058] (3) The acceler...

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Abstract

The invention relates to an automobile intelligent overtaking method and system. The method includes the following steps: 1) Turn on the overtaking system, obtain the position information of surrounding vehicles of the vehicle through on-board radar, and establish a plane coordinate system; 2) Determine whether the overtaking conditions are met; 3) Obtain the predicted driving trajectory of the vehicle in front to be overtaken based on the online prediction algorithm; 4) Generate the initial overtaking trajectory of the vehicle based on the predicted driving trajectory of the vehicle in front; 5) Determine whether to overtake based on the real-time location information of the vehicle in front of the vehicle to be overtaken. End; 6) Continue to obtain the position signal of the vehicle in front to be overtaken in real time, predict the driving trajectory according to the online prediction algorithm, and correct the overtaking trajectory of the vehicle in real time; 7) Determine whether the acceleration of the vehicle in front to be overtaken exceeds the corresponding threshold; 8) Determine Whether the value of K is equal to 5:9) turn off the intelligent overtaking system. Compared with the existing technology, the present invention has the advantages of improving overtaking safety, simple operation, low cost, and advanced algorithm.

Description

technical field [0001] The invention relates to the field of automobile automatic driving technical devices, in particular to an automobile intelligent overtaking method and system. Background technique [0002] Along with the continuous increase of my country's automobiles, automobiles have entered thousands of households. When automobiles provide convenience for people to travel, they also increase the frequency of automobile traffic accidents. Overtaking is a relatively common behavior during driving. However, in a short overtaking time, it is difficult for the driver to observe the conditions of all surrounding vehicles and predict the trajectory of the vehicle in front, so traffic accidents are prone to occur. If a system can be used to judge whether the prerequisites for overtaking are met, and then predict the trajectory of the vehicle in front, and then form an ideal overtaking path, it will have a great effect on improving the safety of overtaking. Contents of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/00B60W40/04
CPCB60W10/06B60W10/20B60W30/18163B60W2710/0633B60W2710/207B60W2554/4041B60W2420/408
Inventor 张立军吴军朱沛沛
Owner TONGJI UNIV
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