IP Library Granted Patent US 11,315,419
Granted Patent B2
US 11,315,419 · App. 16/527,930 · Granted Apr 26, 2022

Providing user assistance in a vehicle based on traffic behavior models

Inventor: James J. Kuffner, Jr. (Saratoga, CA)
Assignee: Toyota Research Institute, Inc.
G08G1/0962B60W40/09G08G1/0125G08G1/0137G09B5/02G09B9/05G09B9/08G09B19/14G09B19/167
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Quick Facts
Patent No.
US 11,315,419
App. No.
16/527,930
Granted
Apr 26, 2022
Kind
B2
Abstract

Providing user assistance in a vehicle includes identifying a traffic behavior of an object in an environment surrounding the vehicle based on an evaluation of information about the environment surrounding the vehicle while the vehicle is in the midst of manual operation, and issuing an alert to a user prompting the user to implement defensive manual operation. The user assistance further includes receiving a traffic behavior model that describes a predominating traffic behavior of a like population of reference objects, and issuing the alert to a user prompting the user to implement defensive manual operation in response to identifying that the traffic behavior of the object does not match the predominating traffic behavior of the like population of reference objects. Under the defensive manual operation, the traffic behavior of the object is addressed.

Claims (39)

1. A vehicle, comprising:

at least one processor; and

a memory communicably coupled to the at least one processor and storing instructions that when executed by the at least one processor cause the at least one processor to:

while the vehicle is in a midst of manual operation, evaluate information about an environment surrounding the vehicle;

quantify, based on the evaluation of the information about the environment surrounding the vehicle, an attribute of how an object in the environment surrounding the vehicle performs a traffic maneuver;

receive a traffic behavior model that describes a statistically median attribute of how a population of reference objects performs the traffic maneuver; and

in response to identifying that the attribute of how the object performs the traffic maneuver does not match the statistically median attribute of how the population of reference objects performs the traffic maneuver:

operate at least one interface in the vehicle to issue an alert to a user prompting the user to implement defensive manual operation under which the attribute of how the object performs the traffic maneuver is addressed.

2. The vehicle of claim 1 , wherein evaluating information about the environment surrounding the vehicle includes:

identifying traffic maneuvers performed by reference objects in the environment surrounding the vehicle, and quantifying attributes of how the reference objects perform the traffic maneuvers;

identifying the population of reference objects from among the reference objects;

identifying the statistically median attribute of how the population of reference objects performs the traffic maneuver; and

generating the traffic behavior model that describes the statistically median attribute of how the population of reference objects performs the traffic maneuver.

3. The vehicle of claim 1 , wherein:

the traffic behavior model describes traffic maneuvers performed by the population of reference objects, and statistically median attributes of how the population of reference objects performs the traffic maneuvers; and

the memory includes instructions that when executed by the at least one processor cause the at least one processor to identify that the traffic maneuver is among the traffic maneuvers performed by the population of reference objects, but the attribute of how the object performs the traffic maneuver does not match a corresponding statistically median attribute of how the population of reference objects performs the traffic maneuver.

4. The vehicle of claim 1 , wherein the alert to a user prompting the user to implement defensive manual operation under which the attribute of how the object performs the traffic maneuver is addressed includes a notification that the attribute of how the object performs the traffic maneuver does not match the statistically median attribute of how the population of reference objects performs the traffic maneuver.

5. The vehicle of claim 1 , wherein the population of reference objects includes reference objects maneuvering on roadways at least one of in a same location as the object, at a same time of day as the object, under a same roadway condition as the object, under a same traffic condition as the object, and under a same weather condition as the object.

6. The vehicle of claim 5 , wherein the population of reference objects includes the reference objects maneuvering on roadways in the same location as the object.

7. The vehicle of claim 5 , wherein the population of reference objects includes the reference objects maneuvering on roadways at least one of at the same time of day as the object, under the same roadway condition as the object, under the same traffic condition as the object, and under the same weather condition as the object.

8. The vehicle of claim 5 , wherein the population of reference objects includes the reference objects maneuvering on roadways in the same location as the object, and at least one of at the same time of day as the object, under the same roadway condition as the object, under the same traffic condition as the object, and under the same weather condition as the object.

9. A method of providing user assistance in a vehicle, comprising:

while the vehicle is in a midst of manual operation, evaluating, using at least one processor, information about an environment surrounding the vehicle;

quantifying, using the at least one processor, based on the evaluation of the information about the environment surrounding the vehicle, an attribute of how an object in the environment surrounding the vehicle performs a traffic maneuver;

receiving, using the at least one processor, a traffic behavior model that describes a statistically median attribute of how a population of reference objects performs the traffic maneuver; and

in response to identifying, using the at least one processor, that the attribute of how the object performs the traffic maneuver does not match the statistically median attribute of how the population of reference objects performs the traffic maneuver:

operating, using the at least one processor, at least one interface in the vehicle to issue an alert to a user prompting the user to implement defensive manual operation under which the attribute of how the object performs the traffic maneuver is addressed.

10. The method of claim 9 , wherein evaluating information about the environment surrounding the vehicle includes:

identifying traffic maneuvers performed by reference objects in the environment surrounding the vehicle, and quantifying attributes of how the reference objects perform the traffic maneuvers;

identifying the population of reference objects from among the reference objects;

identifying the statistically median attribute of how the population of reference objects performs the traffic maneuver; and

generating the traffic behavior model that describes the statistically median attribute of how the population of reference objects performs the traffic maneuver.

11. The method of claim 9 , wherein the traffic behavior model describes traffic maneuvers performed by the population of reference objects, and statistically median attributes of how the population of reference objects performs the traffic maneuvers, further comprising:

identifying, using the at least one processor, that the traffic maneuver is among the traffic maneuvers performed by the population of reference objects, but the attribute of how the object performs the traffic maneuver does not match a corresponding statistically median attribute of how the population of reference objects performs the traffic maneuver.

12. The method of claim 9 , wherein the alert to a user prompting the user to implement defensive manual operation under which the attribute of how the object performs the traffic maneuver is addressed includes a notification that the attribute of how the object performs the traffic maneuver does not match the statistically median attribute of how the population of reference objects performs the traffic maneuver.

13. The method of claim 9 , wherein the population of reference objects includes reference objects maneuvering on roadways at least one of in a same location as the object, at a same time of day as the object, under a same roadway condition as the object, under a same traffic condition as the object, and under a same weather condition as the object.

14. The method of claim 13 , wherein the population of reference objects includes the reference objects maneuvering on roadways in the same location as the object.

15. The method of claim 13 , wherein the population of reference objects includes the reference objects maneuvering on roadways at least one of at the same time of day as the object, under the same roadway condition as the object, under the same traffic condition as the object, and under the same weather condition as the object.

16. The method of claim 13 , wherein the population of reference objects includes the reference objects maneuvering on roadways in the same location as the object, and at least one of at the same time of day as the object, under the same roadway condition as the object, under the same traffic condition as the object, and under the same weather condition as the object.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 15, 2022
From: TOYOTA RESEARCH INSTITUTE, INC.
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 060210/0012 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2019
From: KUFFNER, JAMES J., JR
To: TOYOTA RESEARCH INSTITUTE, INC.
Reel/Frame 049976/0310 →
Continuity (2)
Division 15645539 · Jul 10, 2017
Related Publication 20190355250A1 · Nov 21, 2019