Method and apparatus for controlling autonomous driving

Patent metadata

Field	Value
Publication number	US-2021339771-A1
Application number	US-202017095027-A
Country	US
Kind code	A1
Filing date	Nov 11, 2020
Priority date	Apr 29, 2020
Publication date	Nov 4, 2021
Grant date	—

Abstract

A method for controlling autonomous driving for an autonomous driving vehicle, includes collecting sensing information on autonomous driving in an autonomous driving mode, calculating an initial longitudinal control value based on the sensing information on the autonomous driving, correcting the initial longitudinal control value based on the sensing information, and performing a longitudinal driving control by transmitting the corrected longitudinal control value to a lower controller.

First claim

What is claimed is:

1 . A method for controlling an autonomous driving for an autonomous driving vehicle, the method comprising:
collecting sensing information on the autonomous driving in an autonomous driving mode; calculating an initial longitudinal control value based on the sensing information; correcting the initial longitudinal control value based on the sensing information; and performing a longitudinal driving control by transmitting the corrected initial longitudinal control value to a lower controller.

2 . The method of claim 1 , wherein the correcting of the initial longitudinal control value based on the sensing information includes:
activating a controller correcting parameter based on an input or output error of the lower controller.

3 . The method of claim 2 , wherein the activating of the controller correcting parameter based on the input or output error of the lower controller includes:
measuring the input or output error between a required acceleration and an output acceleration for the lower controller; comparing between the input or output error and a critical error; and in response to comparing between the input or output error and the critical error, when the input or output error exceeds the critical error, activating the controller correcting parameter to maintain tracking performance to be within a range of the critical error.

4 . The method of claim 2 , wherein the correcting of the initial longitudinal control value based on the sensing information includes:
determining a trailer correcting parameter based on whether a trailer is attached to the autonomous driving vehicle.

5 . The method of claim 4 , wherein the determining of the trailer correcting parameter based on whether the trailer is attached to the autonomous driving vehicle includes:
determining whether the trailer is attached by analyzing the sensing information on the autonomous driving; when it is determined that the trailer is attached, calculating a specification of the trailer based on the sensing information on the autonomous driving; and determining the trailer correcting parameter corresponding to the calculated specification of the trailer by referring to a trailer mapping table which is previously stored.

6 . The method of claim 4 , wherein the correcting of the initial longitudinal control value based on the sensing information includes:
determining a driving context correcting parameter corresponding to a driving context.

7 . The method of claim 6 , wherein the determining of the driving context correcting parameter corresponding to the driving context includes:
determining the driving context based on the sensing information on the autonomous driving; determining whether application of a longitudinal control parameter is required with respect to the determined driving context; and when it is determined that the application of the longitudinal control parameter is required, determining the driving context correcting parameter, which corresponds to a characteristic of the autonomous driving vehicle and the determined driving context, by referring to a driving context mapping table which is previously stored.

8 . The method of claim 7 , wherein the characteristic of the autonomous driving vehicle includes acceleration tracking performance for each vehicle speed based on slip and behavior limits.

9 . The method of claim 6 , wherein the correcting of the initial longitudinal control value includes:
calculating the corrected initial longitudinal control value by applying at least one of the controller correcting parameter, the trailer correcting parameter, or the driving context correcting parameter to the initial longitudinal control value.

10 . The method of claim 1 , wherein the sensing information on the autonomous driving includes at least one of positioning information, precision map information, camera capturing information, sensing information by a Radar or Lidar, weather information, driving speed information, information on a recognized driver gaze, sensing information on vehicle internal failure, information on a button input to release the autonomous driving, sensing information on an operation of a steering wheel, or sensing information on an operation of the acceleration or deceleration pedal.

11 . An apparatus for controlling autonomous driving, the apparatus comprising:
a sensor configured to collect sensing information on autonomous driving in an autonomous driving mode; a longitudinal control value generator configured to calculate an initial longitudinal control value based on the sensing information; a longitudinal control parameter corrector configured to calculate the initial longitudinal control value based on the sensing information; and a lower controller configured to control longitudinal driving by receiving the initial longitudinal control value.

12 . The apparatus of claim 11 , wherein the longitudinal control parameter corrector further comprises:
an input or output error correcting part configured to activate a controller correcting parameter based on an input or output error of the lower controller.

13 . The apparatus of claim 12 , wherein the input or output error correcting part is configured to:
measure the input or output error between a required acceleration and an output acceleration for the lower controller; compare between the input or output error and a critical error; and activate the controller correcting parameter to maintain tracking performance to be within a range of the critical error when the input or output error exceeds the critical error.

14 . The apparatus of claim 12 , wherein the longitudinal control parameter corrector includes:
a first parameter correction part configured to determine a trailer correcting parameter based on whether a trailer is attached to the autonomous driving vehicle.

15 . The apparatus of claim 14 , wherein the first parameter correction part is configured to:
determine whether the trailer is attached by analyzing the sensing information on the autonomous driving; calculate a specification of the trailer based on the sensing information on the autonomous driving when the trailer is attached; and determine the trailer correcting parameter corresponding to the calculated specification of the trailer by referring to a trailer mapping table which is previously stored.

16 . The apparatus of claim 14 , wherein the longitudinal control parameter corrector includes:
a second parameter correction part configured to determine a driving context correcting parameter corresponding to a driving context.

17 . The apparatus of claim 16 , wherein the second parameter correction part is configured to:
determine the driving context based on the sensing information on the autonomous driving; determine whether application of a longitudinal control parameter is required with respect to the determined driving context; and when it is determined that the application of the longitudinal control parameter is required, determine the driving context correcting parameter, which corresponds to a characteristic of the autonomous driving vehicle and the determined driving context, by referring to a driving context mapping table which is previously stored.

18 . The apparatus of claim 17 , wherein the characteristic of the autonomous driving vehicle includes:
acceleration tracking performance for each vehicle speed based on slip and behavior limits.

19 . The apparatus of claim 16 , wherein the longitudinal co

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kang Dong Hoon

Classifications

• B60W2552/05

  Type of road, e.g. motorways, local streets, paved or unpaved roads · CPC title

• B60W2540/18

  Steering angle · CPC title

• B60W2530/205

  Dimensions of trailer · CPC title

• B60W2530/203

  Presence of trailer · CPC title

• B60W2050/0292

  Fail-safe or redundant systems, e.g. limp-home or backup systems · CPC title