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Positioning system and method for automatic driving vehicle

A technology of automatic driving and positioning method, which is applied in the field of positioning system of automatic driving vehicles, which can solve the problems of positioning stability and reliability limitations, and achieve the effect of ensuring driving comfort and safety, enhancing reliability, and ensuring safety and reliability

Active Publication Date: 2021-03-26
DONGFENG MOTOR CORP HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The above positioning methods switch between different positioning technologies according to different environments, but there are limitations in the stability and reliability of positioning

Method used

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  • Positioning system and method for automatic driving vehicle
  • Positioning system and method for automatic driving vehicle
  • Positioning system and method for automatic driving vehicle

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0045] In the examples of the present invention, "first", "second", etc. are used to distinguish different objects, and are not necessarily used to describe a specific sequence or sequence.

[0046] The technical terms used in the present invention are described below:

[0047] GPS: (Global Positioning System) Global Positioning System;

[0048] IMU: (Inertial Measurement Unit) inertial measur...

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Abstract

The invention discloses a positioning system and method for an automatic driving vehicle, belongs to the technical field of automatic driving of automobiles, and aims to provide a vehicle positioningresult by using an integrated navigation module in a place with a good GPS signal so as to ensure that the vehicle can normally run along a preset track. When the integrated navigation state is not good, a multi-angle coverage laser radar SLAM positioning algorithm is used for providing vehicle state information; when the method is used in a scene with poor integrated navigation and laser SLAM states, short-distance positioning is carried out through lane line information obtained through current data; three positioning schemes are adopted for safety redundancy, and vehicle positioning safetyand positioning reliability are fully guaranteed.

Description

technical field [0001] The invention belongs to the technical field of automobile automatic driving, and more particularly relates to a positioning system and method for an automatic driving vehicle. Background technique [0002] In recent years, the trend of L4-level autonomous driving has become more and more popular, and as the core module of autonomous driving-the positioning system, the importance of its results is self-evident. Current positioning systems include combined positioning based on GPS+IMU and SLAM (instant positioning and mapping) based on laser / vision, each of which has its own limitations. [0003] Referring to the patent application CN109470240A, a positioning method for automatic driving is disclosed. The positioning method for automatic driving includes automatically switching the following three positioning technologies for automatic driving according to requirements: in the case of sensing a base station, using satellite positioning and strapdown ine...

Claims

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Application Information

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IPC IPC(8): G01S17/06G01S17/86G01C21/16G01S19/47
CPCG01S17/06G01S17/86G01C21/165G01S19/47Y02T10/40
Inventor 骆嫚蔡营杨彦鼎曹恺田小青
Owner DONGFENG MOTOR CORP HUBEI
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