System and method for implementing active safety counter measures for an impaired driver

• US 20080252466A1
• Filed: 04/11/2007
• Published: 10/16/2008
• Est. Priority Date: 04/11/2007
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Yopp, W. Trent, Rupp, Jeffrey D.
• Granted Patent: US 7,777,619 B2
• Time in Patent Office: Days
• US Class Current: 340/576
• CPC Class Codes: A61B 5/18 for vehicle drivers or machine operators
• CPC Class Codes: B60K 28/066 actuating a signalling device B60K28/063 takes precedence

Abstract

Various methods and systems are disclosed for implementing active safety countermeasures in vehicles when it is determined that the driver is impaired.

Claims

1. A method for implementing active safety measures in a vehicle with impaired driver detection, comprising:

determining whether an alert signal has been activated;

setting a time value for the alert signal;

determining whether the alert signal is still activated;

setting a counter measure time value;

determining whether the counter measure time value≦

0;

activating counter measures to ensure driver safety.

2. The method of claim 1, wherein said vehicle active counter measures include restraining drivers, emergency flashers, vehicle horn, vehicle fueling, vehicle brakes.

3. The method of claim 1, further including determining whether the driver is alert and deactivating the active safety counter measures.

4. The method of claim 3, wherein if said determining is that the driver is not alert, said active counter measure are activated.

5. The method of claim 1, further including determining whether said impaired driver alert is activated if said counter measure time is greater than 0.

6. The method of claim 1, further including determining whether an impaired driver alert has been activated when said alert is not currently active.

7. The method of claim 1, further including determining whether the side of the road has been reached if said driver is not alert.

8. The method of claim 7, further including stopping the vehicle once the vehicle has reached the side of the road.

9. The method of claim 8, further including determining whether the driver is alert after stopping said vehicle.

10. The method of claim 9, further including deactivating counter measures when driver is alert.

11. A method for activating active safety counter measures in a vehicle equipped with external sensing, steering speed capabilities and impaired drive detection, comprising:

a) determining whether an impaired driver alert has been activated;

b) setting a time value for the impaired driver alert;

c) determining whether the impaired driver alert is still active beyond said time value;

d) determining a counter measure time value;

e) determining whether the counter measure time value ≦

0;

f) activating counter measures if countermeasure time value is ≦

0;

g) processing external sensing, steering and speed data;

h) determining whether a safe travel path to side of a road upon which said vehicle is traveling exists;

i) traveling said safe path to the side of the road;

j) activating safety counter measures;

k) determining whether driver is alert;

l) controlling said vehicle fueling, steering and braking while traveling said safe travel path to the side of the road;

m) stopping said vehicle;

n) determining whether driver is alert;

o) deactivating active safety counter measures if it is determined the driver is alert.

12. The method of claim 11, further including determining whether the driver is alert and processing external sensing data if it is determined there is no safe path to side of the road.

13. The method of claim 11, further including determining whether the impaired driver alert is still activated if said counter measure time value is greater than 0.

14. The method of claim 11, wherein said active safety counter measures include restraint devices, emergency flashers, horn, steering movements, vehicle speed, vehicle fueling.

15. The method of claim 11, wherein said external sensing includes long range sensors to detect, track and provide path information to determine patented threat assessments to central vehicle speed and braking forces;

cameras to detect and classify objects of interest; and

systems to control the powertrain, steering and braking functions.

16. The method of claim 11, further including internal sensors to monitor driver condition.

17. A system for implementing active safety countermeasures in a vehicle when an impaired driver is detected, comprising:

an electronic control unit (ECU) with memory wherein various tables and software may be resident;

accessories to assist in assessing whether a driver is responsive;

a passive restraint system controllable by said ECU when an impaired driver is detected;

at least one external warning device to alert persons outside the vehicle that the driver is impaired;

vehicle brakes controllable by a software in said ECU when an impaired driver is detected; and

a vehicle fuel strategy controllable by software in said ECU when an impaired driver is detected.

18. The system of claim 17, further including a feedback device to permit the driver to demonstrate that he/she is not impaired.

19. A system for implementing active safety countermeasures when an impaired driver is detected in a vehicle equipped with external sensing, steering and speed capabilities, said system comprising:

an Electronic Control Unit (ECU) with memory wherein various tables and software may be resident;

said ECU controlling said system;

accessories to assist in assessing whether a driver is responsive;

a passive restraint system controllable by software in said ECU when an impaired driver is detected;

at least one external warning device to alert persons outside said vehicle that the driver is impaired;

vehicle brakes and vehicle fueling strategy controllable by said software when an impaired driver is detected.

20. The system of claim 19, further including a feedback device to permit said driver to demonstrate that he/she is not impaired.