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Method and system for operating autonomous driving vehicles, and machine readable medium

An automatic driving and vehicle technology, applied in the direction of motor vehicles, vehicle components, control/regulation systems, etc., can solve the problems that the vehicle cannot successfully determine the path trajectory, the vehicle selection is not optimized, etc.

Pending Publication Date: 2020-10-27
BAIDU USA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some complex scenarios may prevent the vehicle from successfully determining the path trajectory or may cause the vehicle to choose a non-optimized path trajectory

Method used

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  • Method and system for operating autonomous driving vehicles, and machine readable medium
  • Method and system for operating autonomous driving vehicles, and machine readable medium
  • Method and system for operating autonomous driving vehicles, and machine readable medium

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Embodiment Construction

[0020] Various embodiments and aspects of the disclosure will be described with reference to details discussed below and illustrated in the accompanying drawings. The following description and drawings are illustrative of the present disclosure and should not be construed as limiting the present disclosure. Numerous specific details are described to provide a thorough understanding of various embodiments of the present disclosure. However, in certain instances, well-known or conventional details are not described in order to provide a concise discussion of embodiments of the present disclosure.

[0021] Reference in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The appearances of the phrase "in one embodiment" in various places in this specification are not necessarily all referring to the s...

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Abstract

The invention discloses a method and system for operating autonomous driving vehicles, and a machine readable medium. According to some embodiments, an ADV includes a method to plan a path trajectory.The method initializes a path length to a initial path length and performs a path planning operation using the initial path length. The method determines if the path planning operation successfully generates the path trajectory. If the path trajectory fails to be successfully generated, the method determines a reason for the failure. If the path trajectory fails to be generated for reasons otherthan an obstacle blocking the vehicle, the method defaults the path trajectory to a backup path. If the path trajectory fails to be generated due to an obstacle blocking the vehicle, the method reduces the path length by an incremental amount to generate a reduced path length. The method performs the path planning operation using the reduced path length until a path trajectory is successfully generated or until a stop condition is reached.

Description

technical field [0001] Embodiments of the present disclosure generally relate to operating an autonomous vehicle. More specifically, embodiments of the present disclosure relate to path planning for complex scenarios by adjusting path lengths for autonomous vehicles (ADVs). Background technique [0002] Vehicles operating in an autonomous mode (eg, driverless) can relieve the occupants, especially the driver, from some driving-related duties. When operating in autonomous mode, the vehicle can navigate to various locations using on-board sensors, allowing the vehicle to drive with minimal human interaction or in some cases without any passengers. [0003] Motion planning and control are key operations in autonomous driving. Motion planning and control can include path planning and velocity planning. Traditional path planning operations estimate the difficulty of completing multiple trajectories based on obstacles, traffic conditions, road boundaries, etc. perceived by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/02
CPCG05D1/0236G05D1/024G05D1/0242G05D1/0246G05D1/0255G05D1/0257G05D1/0259G05D1/0261G05D1/0223G05D1/0214G05D1/0221G05D1/0278G05D1/028G05D1/0276B60W30/095B60W2720/103B60W30/09B60W10/04B60W10/18B60W10/20B60W2552/30B60W2520/10B60W2554/802G05D1/0088
Inventor 朱帆
Owner BAIDU USA LLC
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