Systems and methods for operating an autonomous vehicle

Patent metadata

Field	Value
Publication number	US-2022379924-A1
Application number	US-202217804532-A
Country	US
Kind code	A1
Filing date	May 27, 2022
Priority date	May 28, 2021
Publication date	Dec 1, 2022
Grant date	—

Abstract

An autonomous vehicle (AV) includes features that allows the AV to comply with applicable regulations and statues for performing safe driving operation. An example method for operating the AV includes determining a trajectory related information of a vehicle operating on a roadway on which the AV is operating; receiving sensor data of a first area that includes the vehicle; determining an additional trajectory related information for the AV by comparing the trajectory related information of the vehicle to a current trajectory related information of the AV, wherein the additional trajectory related information is based on a category to which the vehicle belongs, and wherein the additional trajectory related information allows the AV to maintain at least a distance between the AV and the vehicle; and causing the AV to operate in accordance with the additional trajectory related information.

First claim

What is claimed is:

1 . A method of operating an autonomous vehicle, comprising:
determining, by a computer located in the autonomous vehicle, a trajectory related information of a vehicle operating on a roadway on which the autonomous vehicle is operating, wherein the trajectory related information for the vehicle includes a speed of the vehicle and a set of points on which the vehicle is predicted to travel; receiving, from a sensor located on the autonomous vehicle, sensor data of a first area that includes the vehicle; determining an additional trajectory related information for the autonomous vehicle by comparing the trajectory related information of the vehicle to a current trajectory related information of the autonomous vehicle,
wherein the additional trajectory related information is based on a category to which the vehicle belongs that is determined using the sensor data, and
wherein the additional trajectory related information allows the autonomous vehicle to maintain at least a distance between the autonomous vehicle and the vehicle; and
causing the autonomous vehicle to operate in accordance with the additional trajectory related information of the autonomous vehicle.

2 . The method of claim 1 , further comprising:
determining that the sensor data indicates a presence of flashing lights on the vehicle; determining, based on the presence of the flashing lights on the vehicle, that the category to which the vehicle belongs is a flashing emergency vehicle; and wherein the additional trajectory related information of the autonomous vehicle is determined based on the category being the flashing emergency vehicle.

3 . The method of claim 2 , wherein the trajectory related information of the vehicle indicates that the vehicle is operating within a same lane as a lane on the roadway on which the autonomous vehicle is operating, and wherein the additional trajectory related information for the autonomous vehicle indicates a change of lane for the autonomous vehicle from the lane on which the autonomous vehicle is operating to another lane on the roadway.

4 . The method of claim 2 , wherein the additional trajectory related information for the autonomous vehicle indicates a deceleration for the autonomous vehicle and a steering for the autonomous vehicle to a second area off of the roadway.

5 . The method of claim 1 , wherein, in accordance with determining that the trajectory related information for the vehicle indicates that a number of lane crossings over a lane boundary of the roadway that is greater than a predetermined number within a predetermined amount of time, the additional trajectory related information for the autonomous vehicle is configured to increase the distance between the autonomous vehicle and the vehicle.

6 . The method of claim 1 , wherein, in accordance with a determination that the trajectory related information for the vehicle indicates that the vehicle is entering a lane in which the autonomous vehicle is operating on the roadway within a predetermined range of distance in front of the autonomous vehicle, the additional trajectory related information for the autonomous vehicle indicates a deceleration for the autonomous vehicle within the lane in which the autonomous vehicle is operating.

7 . The method of claim 6 , wherein the deceleration for the autonomous vehicle is determined based on a speed of the autonomous vehicle.

8 . The method of claim 6 , wherein the deceleration for the autonomous vehicle is determined based on a speed of the autonomous vehicle and a predetermined maximum deceleration allowed for the vehicle, and
wherein the predetermined maximum deceleration allowed for the vehicle is based on the category of the vehicle.

9 . The method of claim 6 , wherein the additional trajectory related information includes an acceleration or a deceleration that is not greater than a predetermined value.

10 . The method of claim 9 , wherein the predetermined value is based on a steady-state cruising speed of the autonomous vehicle.

11 . A system for operating an autonomous vehicle, comprising a computer that includes a processor and a memory storing instructions that, when executed by the processor, cause the system to:
determine a trajectory related information of a vehicle operating on a roadway on which the autonomous vehicle is operating, wherein the trajectory related information for the vehicle includes a speed of the vehicle and a set of points on which the vehicle is predicted to travel; receive, from a sensor located on the autonomous vehicle, sensor data of a first area that includes the vehicle; determine an additional trajectory related information for the autonomous vehicle by comparing the trajectory related information of the vehicle to a current trajectory related information of the autonomous vehicle,
wherein the additional trajectory related information is based on a category to which the vehicle belongs that is determined using the sensor data, and
wherein the additional trajectory related information allows the autonomous vehicle to maintain at least a distance between the autonomous vehicle and the vehicle; and
cause the autonomous vehicle to operate in accordance with the additional trajectory related information of the autonomous vehicle.

12 . The system of claim 11 , further comprising:
determining that the sensor data indicates one or more dimensions of the vehicle; determining, based on the one or more dimensions being greater than a predetermined value for the one or more dimensions, that the category to which the vehicle belongs is an over-sized vehicle; and wherein the additional trajectory related information of the autonomous vehicle is determined based on the category being the over-sized vehicle.

13 . The system of claim 12 , further comprising:
in accordance with the category to which the vehicle belongs being the over-sized vehicle, identifying one or more additional vehicles that are each operating within a range of speeds that is determined based on the speed of the vehicle and within a range of distances from the vehicle based on a predetermined distance; and determining the additional trajectory related information for the autonomous vehicle based on the trajectory related information for the vehicle and trajectory related information for the one or more additional vehicles.

14 . The system of claim 11 , wherein, in accordance with a determination that the trajectory for the vehicle partially crosses a lane boundary of the roadway, the additional trajectory related information for the autonomous vehicle is configured to increase the distance between the autonomous vehicle and the vehicle.

15 . The system of claim 11 , wherein the first area that includes the vehicle includes an intersection, and wherein the autonomous vehicle is caused to operate in accordance with the additional trajectory related information based on determining a length in time at which the vehicle is located at the intersection.

16 . The system of claim 15 , wherein the autonomous vehicle is caused to operate in accordance with the additional trajectory after a predetermined amount of time after determining that the vehicle is in motion in the intersection.

17 . A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to:
determine a trajectory related information of a vehicle operating on a roadway on which the autonomous vehicle is operating, wherein the trajectory related information for th

Assignees

• Tusimple Inc

Inventors

• Foster Scott Douglas
• Overmon Neil M
• Portillo Erik Orlando
• Shi Zhujia
• Tam Joyce

Classifications

• G01S2013/9316

  combined with communication equipment with other vehicles or with base stations · CPC title

• G01S13/931

  of land vehicles · CPC title

• B60W2754/30

  Longitudinal distance · CPC title

• B60W2554/4046

  Behavior, e.g. aggressive or erratic · CPC title

• B60W2520/10

  Longitudinal speed · CPC title