Coordinated vehicle response system and method for driver behavior

Patent metadata

Field	Value
Publication number	US-9873437-B2
Application number	US-201514878295-A
Country	US
Kind code	B2
Filing date	Oct 8, 2015
Priority date	Feb 18, 2011
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

Methods of assessing driver behavior include monitoring vehicle systems and driver monitoring systems to accommodate for a slow reaction time, attention lapse and/or alertness of a driver. When it is determined that a driver is drowsy, for example, the response system may modify the operation of one or more vehicle systems. The response system can modify the control of two or more systems simultaneously in response to driver behavior.

First claim

What is claimed is:

1. A method of controlling vehicle systems in a motor vehicle, comprising:
receiving monitoring information from a response system, the monitoring information including information about a rotation direction of a head of a driver with respect to the driver and the vehicle;
determining a body state index based on the monitoring information;
detecting a first hazard based on information received from a blind spot monitoring system;
detecting a second hazard based on the first hazard and information received from a lane keep assist system; and
controlling an electronic power steering system based on the body state index, the second hazard and the rotation direction of the head of the driver.

2. The method according to claim 1 , wherein detecting the first hazard further includes detecting a target vehicle in a blind spot monitoring zone of the vehicle based on the information received from the blind spot monitoring system.

3. The method according to claim 2 , wherein detecting the second hazard further includes detecting a lane deviation and a trajectory of the vehicle towards the lane deviation based on information received from the lane keep assist system, wherein the trajectory is toward the target vehicle in the blind spot monitoring zone.

4. The method according to claim 3 , wherein controlling the electronic power steering system includes controlling a counter torque of the electronic power steering in an opposing direction of the lane deviation and at a level based on the rotation direction of the head of the driver relative to a direction of the lane deviation.

5. The method according to claim 4 , wherein controlling the electronic power steering system includes controlling the counter torque at a level as a function of the rotation direction of the head relative to the direction of the lane deviation.

6. The method according to claim 5 , wherein the counter torque increases as a relative distance increases between the rotation direction of the head and the direction of the lane deviation.

7. The method according to claim 5 , wherein controlling the electronic power steering system includes overriding control of the counter torque in response to information from a third vehicle system indicating a third hazard does not exist.

8. A method of controlling vehicle systems in a motor vehicle, comprising:
detecting a first hazard based on information received from a blind spot monitoring system;
detecting a second hazard based on the first hazard and information received from a lane keep assist system;
determining a body state index based on a rotation direction of a head of a driver, a degree of the rotation direction, and the second hazard, wherein the rotation direction is received as monitoring information from a response system; and
controlling an electronic power steering system based on the body state index and the second hazard.

9. The method according to claim 8 , wherein detecting the first hazard further includes detecting a target vehicle in a blind spot monitoring zone of the vehicle based on the information received from the blind spot monitoring system.

10. The method according to claim 9 , wherein detecting the second hazard further includes receiving a trajectory of the vehicle towards a lane deviation based on the information received from the lane keep assist system and determining if a direction of the trajectory is toward the target vehicle in the blind spot monitoring zone.

11. The method according claim 10 , wherein determining the body state index further includes determining the degree of the rotation direction relative to the direction of the trajectory.

12. The method according to claim 11 , wherein the body state index increases as the degree of the rotation increases.

13. The method according to claim 8 , wherein determining the body state index further includes determining the degree of the rotation direction relative to a direction of a lane deviation received from the lane keep assist system.

14. The method according to claim 13 , wherein the body state index is increased as a function of the degree of the rotation direction.

15. A method of controlling vehicle systems in a motor vehicle, comprising:
receiving monitoring information from a response system, the monitoring information including information about a rotation direction of a head of a driver with respect to the driver and the vehicle;
determining a body state index based on the monitoring information;
detecting a first hazard based on information from a blind spot monitoring system;
upon detecting the first hazard, detecting a second hazard based on the information from the blind spot monitoring system and information from a lane keep assist system; and
upon detecting the second hazard, modifying control of an electronic power steering system based on the body state index and the information from the lane keep assist system.

16. The method according to claim 15 , wherein the second hazard includes a lane deviation wherein a direction of the lane deviation is towards a target vehicle in a blind spot monitoring zone based on the information from the blind spot monitoring system and the information from the lane keep assist system.

17. The method according to claim 16 , wherein modifying control of the electronic power steering system further includes modifying a control type of the electronic power steering system as a function of the rotation direction of the head of the driver relative to the direction of the lane deviation.

18. The method according to claim 15 , further including checking for a third hazard, the third hazard based on information from a third vehicle system.

19. The method according to claim 18 , wherein modifying the electronic power steering system further includes overriding control of the electronic power steering system in response to determining the third hazard does not exist.

20. The method according to claim 15 , wherein the rotation direction of the head with respect to the driver and the vehicle includes a rotation direction towards the left with respect to a forward direction of the vehicle, a rotation direction towards the right with respect to the forward direction of the vehicle, a rotation direction towards the back with respect to the forward direction of the vehicle and a rotation direction forward with respect to the forward direction of the vehicle.

21. The method according to claim 20 , wherein modifying the electronic power steering system further includes modifying a control type of the electronic power steering system as a function of the rotation direction and information from the lane keep assist system.

Assignees

• Honda Motor Co Ltd

Inventors

• Fung Kin C
• Dick Timothy J

Classifications

• G01C21/3697

  Output of additional, non-guidance related information, e.g. low fuel level (G01C21/3679 takes precedence) · CPC title

• B60K28/06

  responsive to incapacity of driver · CPC title

• G08G1/166

  for active traffic, e.g. moving vehicles, pedestrians, bikes · CPC title

• G08B21/06

  indicating a condition of sleep, e.g. anti-dozing alarms · CPC title

• B60T2201/03

  Brake assistants · CPC title