Method and device for ascertaining a source of danger on a travel route

Patent metadata

Field	Value
Publication number	US-9528842-B2
Application number	US-201314423594-A
Country	US
Kind code	B2
Filing date	Jul 18, 2013
Priority date	Aug 24, 2012
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A method is provided for ascertaining a source of danger on a travel route, during the travel of a vehicle along the travel route, a vehicle parameter being measured and compared to a vehicle parameter threshold value; as a function of the comparison, danger data including the measured vehicle parameter and a vehicle location assigned to the measurement being formed for the information that a danger source has been formed at the vehicle location assigned to the measurement. A corresponding device as well as a corresponding computer program are also provided.

First claim

What is claimed is:

1. A method for ascertaining a source of danger on a travel route, the method comprising:
determining a vehicle location using a navigation system of a vehicle;
measuring a vehicle parameter using a sensor on-board the vehicle;
comparing, by a data processing device of the vehicle, the vehicle parameter to a vehicle parameter threshold value during a travel of the vehicle along a travel route;
as a function of the comparison, forming, by the data processing device, danger data including the vehicle parameter, the vehicle location, and a potential danger source at the vehicle location; and
generating a warning signal based on the danger data.

2. The method as recited in claim 1 , wherein the vehicle parameter is a parameter selected from the following group of parameters: an operating state of a driver assistance system of the vehicle, a vehicle movement variable, and a sensor value of the sensor.

3. The method as recited in claim 2 , wherein the vehicle movement variable corresponds to one of a longitudinal acceleration, a transverse acceleration, a vertical acceleration, a yaw rate, a yawing acceleration, a steering wheel angle speed, and a vehicle speed.

4. The method as recited in claim 2 , wherein the sensor includes a collision sensor for detecting a collision.

5. The method as recited in claim 1 , further comprising measuring an environmental parameter and assigning the environmental parameter to the danger data, the environmental parameter corresponding to one of an environmental temperature of the vehicle, a time of day, a weather, a windshield wiper operating state, an environmental brightness, an environmental air pressure, and an environmental moisture.

6. The method as recited in claim 1 , further comprising sending the danger data to a cloud server for further processing.

7. The method as recited in claim 1 , further comprising classifying the potential danger source as a danger of skidding, if the vehicle parameter is at least one of a vehicle transverse acceleration, a yaw rate, a yawing acceleration and an operating state of a driving dynamics control system.

8. The method as recited in claim 1 , further comprising classifying the potential danger source as a curve if the vehicle parameter is an operating state of a lane keeping system.

9. The method as recited in claim 1 , further comprising classifying the potential danger source as a potential rear-end collision, if the vehicle parameter is one of a vehicle longitudinal acceleration and an operating state of one of an automatic emergency braking system and an antilock system.

10. The method as recited in claim 1 , further comprising classifying the potential danger source as roadway damage if the vehicle parameter is a vertical acceleration.

11. The method as recited in claim 10 , wherein the roadway damage corresponds to a pothole.

12. The method as recited in claim 1 , wherein the warning signal is provided to a driver of the vehicle.

13. The method as recited in claim 1 , further comprising, based on the danger data, operating a driver assistance system of the vehicle to carry out an action in reaction to the danger source.

14. A device for ascertaining a source of danger on a travel route, the device comprising:
an on-board sensor configured for measuring a vehicle parameter;
a location determination device for determining a vehicle location; and
a data processing device for:
comparing the vehicle parameter to a vehicle parameter threshold value during a travel of a vehicle along a travel route;
as a function of the comparison, forming danger data including the vehicle parameter, the vehicle location and a potential danger source at the vehicle location; and
providing a warning signal based on the danger data.

15. A non-transitory machine readable storage medium having a computer program, which when executed by a processor performs a method for ascertaining a source of danger on a travel route, the method comprising:
determining a vehicle location using a navigation system of a vehicle;
measuring a vehicle parameter using a sensor on-board the vehicle;
comparing, using a data processing device of the vehicle, the vehicle parameter to a vehicle parameter threshold value during a travel of the vehicle along a travel route;
as a function of the comparison, forming, using the data processing device, danger data including the vehicle parameter, the vehicle location, and a potential danger source at the vehicle location; and
generating a warning signal based on the danger data.

16. The non-transitory computer readable storage medium of claim 15 , wherein the vehicle parameter includes at least one of: an operating state of a driver assistance system of the vehicle, a vehicle movement variable, or a sensor value of the sensor.

17. The non-transitory computer readable storage medium of claim 16 , wherein the vehicle movement variable corresponds to at least one of: a longitudinal acceleration, a transverse acceleration, a yaw rate, a yawing acceleration, a steering wheel angle speed, or a vehicle speed.

18. The non-transitory computer readable storage medium of claim 16 , wherein the vehicle movement variable corresponds to a vertical acceleration.

19. The non-transitory computer readable storage medium of claim 15 , the method further comprising:
sending the danger data to a cloud server for evaluation; and
receiving evaluated danger data from the cloud server relating to the travel route, the evaluated danger data being based on an aggregate of danger data from a plurality of vehicles,
wherein the generating the warning signal is responsive to the evaluated danger data.

20. The non-transitory computer readable storage medium of claim 19 , wherein the generating the warning signal is part of at least one of: displaying the evaluated danger data on a digital map, activating a driver assistance system of the vehicle, preparing an actuator of the vehicle, or changing a calculation parameter for a system of the vehicle.

21. The method as recited in claim 3 , wherein the vehicle movement variable corresponds to a vertical acceleration.

22. The method as recited in claim 1 , further comprising:
sending the danger data to a cloud server for evaluation; and
receiving evaluated danger data from the cloud server relating to the travel route, the evaluated danger data being based on an aggregate of danger data from a plurality of vehicles,
wherein the generating the warning signal is responsive to the evaluated danger data.

23. The method as recited in claim 22 , wherein the generating the warning signal is part of at least one of: displaying the evaluated danger data on a digital map, activating a driver assistance system of the vehicle, preparing an actuator of the vehicle, or changing a calculation parameter for a system of the vehicle.

24. The device of claim 14 , wherein the vehicle parameter includes at least one of: an operating state of a driver assistance system of the vehicle, a vehicle movement variable, or a sensor value of the sensor.

25. The device of claim 24 , wherein the vehicle movement variable corresponds to at least one of: a longitudinal acceleration, a transverse acceleration, a yaw rate, a yawing acceleration, a steering wheel angle speed, or a vehicle speed.

26. The device of claim 24 , wherein the vehicle movement variable corresponds to a vertical acceleration.

Assignees

• Bosch Gmbh Robert

Inventors

• Braeuchle Christian
• Knoop Michael
• Flehmig Folko

Classifications

• G08G1/096775

  where the origin of the information is a central station · CPC title

• G08G1/0129

  for creating historical data or processing based on historical data · CPC title

• G08G1/096725

  where the received information generates an automatic action on the vehicle control · CPC title

• G08G1/0112 Primary

  from the vehicle, e.g. floating car data [FCD] · CPC title

• G08G1/164

  Centralised systems, e.g. external to vehicles · CPC title