IP Library › Granted Patent US 12,391,308
Granted Patent B2
US 12,391,308 · App. 18/236,982 · Granted Aug 19, 2025

False positive request detection

Inventors: Yiting Liu (Dublin, CA); Hirofumi Yamamoto (Cupertino, CA); Chen Bao (Newark, CA)
Assignee: Toyota Jidosha Kabushiki Kaisha
B62D5/0484B62D5/049
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Quick Facts
Patent No.
US 12,391,308
App. No.
18/236,982
Granted
Aug 19, 2025
Kind
B2
Abstract

Systems, methods, and other embodiments described herein relate to detecting a false positive request to disengage a vehicle control system. In one embodiment, a method includes detecting a false positive request to disengage a vehicle control system based on a difference between a road wheel angle input and an angle of a road wheel controlled by the road wheel angle input and preventing the vehicle control system from disengaging based on detecting the false positive request.

Claims (37)

1. A method comprising:

detecting a false positive request to disengage a vehicle control system based on whether:

a rate of change of angle of a road wheel exceeds a predetermined threshold value, the road wheel being controlled by a road wheel angle input; and

a difference between the road wheel angle input and an angle of the road wheel exceeds a second predetermined threshold value; and

preventing the vehicle control system from disengaging based on detecting the false positive request.

2. The method of claim 1 , wherein the vehicle control system is capable of being disengaged based on the road wheel angle input.

3. The method of claim 1 , wherein the difference is based on a position of the road wheel angle input and a position of the angle of the road wheel.

4. The method of claim 1 , wherein the difference is based on a rate of change of the road wheel angle input and a rate of change of the angle of the road wheel.

5. The method of claim 1 , further comprising:

detecting the false positive request based on at least one of: a characteristic of a vehicle and a characteristic of a road, wherein the vehicle includes the vehicle control system, and wherein the vehicle is travelling on the road.

6. The method of claim 1 , wherein the road wheel angle input is based on a steering wheel input.

7. The method of claim 1 , wherein the road wheel angle input is based on an electronic control unit (ECU).

8. A system comprising:

a processor; and

a memory storing machine-readable instructions that, when executed by the processor, cause the processor to:

detect a false positive request to disengage a vehicle control system based on whether:

a rate of change of angle of a road wheel exceeds a predetermined threshold value, the road wheel being controlled by a road wheel angle input; and

a difference between the road wheel angle input and an angle of the road wheel exceeds a second predetermined threshold value; and

prevent the vehicle control system from disengaging based on detecting the false positive request.

9. The system of claim 8 , wherein the vehicle control system is capable of being disengaged based on the road wheel angle input.

10. The system of claim 8 , wherein the difference is based on a position of the road wheel angle input and a position of the angle of the road wheel.

11. The system of claim 8 , wherein the difference is based on a rate of change of the road wheel angle input and a rate of change of the angle of the road wheel.

12. The system of claim 8 , wherein the machine-readable instructions further include instructions that when executed by the processor cause the processor to:

detect the false positive request based on at least one of: a characteristic of a vehicle and a characteristic of a road, wherein the vehicle includes the vehicle control system, and wherein the vehicle is travelling on the road.

13. The system of claim 8 , wherein the road wheel angle input is based on a steering wheel input.

14. The system of claim 8 , wherein the road wheel angle input is based on an electronic control unit (ECU).

15. A non-transitory computer-readable medium including instructions that when executed by a processor cause the processor to:

detect a false positive request to disengage a vehicle control system based on whether:

a rate of change of angle of a road wheel exceeds a predetermined threshold value, the road wheel being controlled by a road wheel angle input; and

a difference between the road wheel angle input and an angle of the road wheel exceeds a second predetermined threshold value; and

prevent the vehicle control system from disengaging based on detecting the false positive request.

16. The non-transitory computer-readable medium of claim 15 , wherein the vehicle control system is capable of being disengaged based on the road wheel angle input.

17. The non-transitory computer-readable medium of claim 15 , wherein the difference is based on a position of the road wheel angle input and a position of the angle of the road wheel.

18. The non-transitory computer-readable medium of claim 15 , wherein the difference is based on a rate of change of the road wheel angle input and a rate of change of the angle of the road wheel.

19. The non-transitory computer-readable medium of claim 15 , wherein the instructions further include instructions that when executed by the processor cause the processor to:

detect the false positive request based on at least one of: a characteristic of a vehicle and a characteristic of a road, wherein the vehicle includes the vehicle control system, and wherein the vehicle is travelling on the road.

20. The non-transitory computer-readable medium of claim 15 , wherein the road wheel angle input is based on a steering wheel input.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2023
From: LIU, YITING; YAMAMOTO, HIROFUMI; BAO, CHEN
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 064706/0756 →
Continuity (1)
Related Publication 20250065944A1 · Feb 27, 2025
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