OPERATIVENESS TEST OF A DRIVER-ASSISTANCE SYSTEM

• US 20180276490A1
• Filed: 08/11/2016
• Published: 09/27/2018
• Est. Priority Date: 10/08/2015
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Mueller, Alexander
• Granted Patent: US 10,755,127 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 16/03 for supply of electrical power to vehicle subsystems or for circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: G06V 10/147 Details of sensors, e.g. sensor lenses fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19
• CPC Class Codes: G06V 10/98 Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns
• CPC Class Codes: G06V 20/56 exterior to a vehicle by using sensors mounted on the vehicle

Abstract

A method for determining the operativeness of a driver-assistance system of a vehicle, in particular a motor vehicle. The driver-assistance system has at least one light sensor and at least one camera sensor, which are developed and/or aligned on the vehicle in order to detect at least essentially the same environment. It is provided that at least one first brightness value ascertained by the light sensor is compared to at least one second brightness value ascertained by the camera sensor, and that the operativeness of the driver-assistance system is determined by the comparison of the brightness values.

Claims

1-10. -10. (canceled)

11. A method for determining operativeness of a driver-assistance system of a motor vehicle, the driver-assistance system having at least one light sensor and at least one camera sensor, which are developed on the vehicle to detect the at least essentially same environment, the method comprising:

comparing at least one first brightness value ascertained by the light sensor to at least one second brightness value ascertained by the camera sensor; and

determining the operativeness of the driver-assistance system based on the comparison of the brightness values.

12. The method as recited in claim 11, wherein a first characteristic of first brightness values of the light sensor, detected temporally one after the other, and a second characteristic of second brightness values of the camera sensor, detected temporally one after the other, are ascertained and compared to each other to determine the operativeness of the driver-assistance system.

13. The method as recited in claim 12, wherein the operativeness of the driver-assistance system is detected in the comparison of the first and second characteristics only if the first and second characteristics exhibit an identical gradient change at the same time.

14. The method as recited in claim 12, wherein detected brightness values of at least one of:

(i) at least two light sensors, and (ii) at least two camera sensors, are compared to one another in each case, and when a deviation of the detected brightness values from one another that is less than a predefinable limit value is detected in the comparison, the operativeness of the driver-assistance system is detected.

15. The method as recited in claim 11, wherein the first brightness value is determined from a simultaneously detected first brightness values from at least two light sensors that are aligned for detecting the same environment.

16. The method as recited in claim 11, wherein the second brightness value is determined from the simultaneously detected second brightness values from at least two camera sensors that are aligned for detecting the same environment.

17. The method as recited in claim 11, wherein a setpoint brightness value is ascertained as a function of at least one of data from a satellite-based navigation system and a current chronological time, and at least one of the first brightness value and the second brightness value is compared to the setpoint brightness value to determine the operativeness of the driver-assistance system.

18. A device for operating a driver-assistance system of a motor vehicle, the driver-assistance system having at least one light sensor and at least one camera sensor, which are developed on the vehicle for detecting the same environment, the device comprising:

a specially configured control device configured to compare at least one first brightness value ascertained by the light sensor to at least one second brightness value ascertained by the camera sensor, and determine the operativeness of the driver-assistance system based on the comparison of the brightness values.

19. A driver-assistance system for a motor vehicle, comprising:

at least one light sensor and at least one camera sensor, which are developed on the vehicle for detecting the same environment; and

a specially configured control device configured to compare at least one first brightness value ascertained by the light sensor to at least one second brightness value ascertained by the camera sensor, and determine the operativeness of the driver-assistance system based on the comparison of the brightness values.

20. A vehicle, having a driver-assistance system, the driver-assistance system comprising:

at least one light sensor and at least one camera sensor, which are developed on the vehicle for detecting the same environment; and

a specially configured control device configured to compare at least one first brightness value ascertained by the light sensor to at least one second brightness value ascertained by the camera sensor, and determine the operativeness of the driver-assistance system based on the comparison of the brightness values.