Method for activating a driver assistance system

• US 9,457,803 B2
• Filed: 08/06/2012
• Issued: 10/04/2016
• Est. Priority Date: 10/04/2011
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Nordbruch, Stefan
• Primary Examiner(s): WONG, YUEN H
• Application Number:
  US14/348,004
• Publication Number:
  US 20140358327A1
• Time in Patent Office: 1,520 Days
• US Class Current: 1/1
• CPC Class Codes: B60W 2050/0075 Automatic parameter input, automatic initialising or calibrating means
• CPC Class Codes: B60W 2540/043 Identity of occupants
• CPC Class Codes: B60W 2540/215 Selection or confirmation of options
• CPC Class Codes: B60W 2540/24 Drug level, e.g. alcohol
• CPC Class Codes: B60W 2540/26 Incapacity
• CPC Class Codes: B60W 2540/30 Driving style
• CPC Class Codes: B60W 2556/10 Historical data
• CPC Class Codes: B60W 30/00 Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
• CPC Class Codes: B60W 50/082 Selecting or switching between different modes of propelling
• CPC Class Codes: B60W 50/087 where the control system corrects or modifies a request from the driver

Abstract

In a method for activating a driver assistance system in a vehicle, a check is performed after an activating request for a driver assistance system from a driver as to whether the driver of the vehicle is suitable for utilizing the requested driver assistance system, and the activation of the requested driver assistance system is carried out depending on the suitability of the driver.

Claims

1. A method for controlling a driver assistance system in a vehicle, the method comprising:

recognizing, by a control unit using a sensor, a driver of the vehicle;

detecting, by the control unit, an activating request for a driver assistance system from the recognized driver;

ascertaining, by the control unit, a value based on an assessment of a driving behavior of the recognized driver in operating the vehicle while the driver assistance system of the vehicle is in an active state, wherein the driving behavior comprises at least one of a braking operation, an acceleration operation, a shifting operation, an operation modifying a regulated distance, and a failure to retake control of vehicle guidance upon return of responsibility from an automatic function to the driver;

comparing, by the control unit, the ascertained behavior-based value to a threshold value determined and stored based on rules and parameters established for the driving behavior;

determining, by the control unit, after the detection of the activating request and based on the comparison, whether the recognized driver of the vehicle is suitable for utilizing the requested driver assistance system; and

controlling the requested driver assistance system depending on the determined suitability of the recognized driver for utilizing the requested driver assistance system, wherein the controlling is performed such that;

(i) when the ascertained behavior-based value is greater than the threshold value, the driver is determined to be suitable for utilizing the requested driver assistance system, and the driver assistance system is allowed to be in the active state; and

(ii) when the ascertained behavior-based value is not greater than the threshold value, the driver is determined to be unsuitable for utilizing the requested driver assistance system, and the requested driver assistance system is prevented from being in the active state.

2. The method as recited in claim 1, wherein, after the requested driver assistance system is prevented from being in the active state due to the driver being determined to be unsuitable, the driver is able to manually activate the requested driver assistance system by an input.

3. The method as recited in claim 1, wherein different threshold values are stored for different recognized drivers, each respective recognized driver being recognized with an aid of a detection method, and the threshold value associated with the respective recognized driver being used for the comparison.

4. The method as recited in claim 1, wherein the operating behavior of the driver is recorded as a function of a particular driving situation.

5. The method as recited in claim 1, wherein the threshold value varies depending on at least one of (i) a particular driver assistance function, and (ii) a particular driving situation.

6. The method as recited in claim 1, further comprising:

detecting and recording respective operating behaviors of a plurality of drivers, including the recognized driver; and

detecting a new operating behavior, wherein the recognition of the recognized driver is by matching the detected new operating behavior to, out of the detected and recorded operating behaviors of the plurality of drivers, the respective corresponding to the recognized driver.

7. The method as recited in claim 1, wherein, for determining the suitability of the driver, a present driving situation and a corresponding value for the suitability of the driver for the present driving situation is taken into account.

8. The method as recited in claim 1, further comprising executing an algorithm according to which a requested driver assistance function is not activated in consideration of an exclusionary criterion.

9. The method as recited in claim 8, wherein the exclusionary criterion includes at least one of a vehicle speed region and a weather condition.

10. The method as recited in claim 8, wherein the exclusionary criterion includes at least one of a fatigue state of the recognized driver, an attentiveness state of the recognized driver, and a drunkenness state of the recognized driver.

11. The method as recited in claim 1, wherein the suitability determination is based on a previously recorded behavior of the recognized driver.

12. The method as recited in claim 1, wherein the recognized driver is regarded as unsuitable when the recognized driver, upon the return of responsibility from the automatic function to the driver, does not take over the guidance of the vehicle within a certain time duration.

13. A control system for controlling a driver assistance system of a vehicle, the control system comprising:

a sensor;

a control unit, wherein the control unit is configured to recognize a driver of the vehicle based on output of the sensor; and

an input device via which an activating request for a driver assistance system is inputtable by the recognized driver,

wherein the control unit is configured to;

ascertain a value based on an assessment of a driving behavior of the recognized driver in operating the vehicle while the driver assistance system of the vehicle is in an active state, wherein the driving behavior comprises at least one of a braking operation, an acceleration operation, a shifting operation, an operation modifying a regulated distance, and a failure to retake control of vehicle guidance upon return of responsibility from an automatic function to the driver;

compare the ascertained behavior-based value to a threshold value determined and stored based on rules and parameters established for the driving behavior;

determine, after the detection of the activating request and based on the comparison, whether the recognized driver of the vehicle is suitable for utilizing the requested driver assistance system; and

control the requested driver assistance system depending on the determined suitability of the recognized driver for utilizing the requested driver assistance system, the control being such that;

(i) when the ascertained behavior-based value is greater than the threshold value, the driver is determined to be suitable for utilizing the requested driver assistance system, and the driver assistance system is allowed to be in the active state; and

(ii) when the ascertained behavior-based value is not greater than the threshold value, the driver is determined to be unsuitable for utilizing the requested driver assistance system, and the requested driver assistance system is prevented from being in the active state.

14. A non-transitory computer-readable data storage medium storing a computer program having program codes which that are executable by a computer and that, when executed on the computer, cause the computer to perform a method for controlling a driver assistance system in a vehicle, the method comprising:

recognizing, by a control unit using at least a sensor, a driver of the vehicle;

detecting, by the control unit, an activating request for a driver assistance system from the recognized driver;

ascertaining, by the control unit, a value based on an assessment of a driving behavior of the recognized driver in operating the vehicle while the driver assistance system of the vehicle is in an active state, wherein the driving behavior comprises at least one of a braking operation, an acceleration operation, a shifting operation, an operation modifying a regulated distance, and a failure to retake control of vehicle guidance upon return of responsibility from an automatic function to the driver;

comparing, by the control unit, the ascertained behavior-based value to the a threshold value determined and stored based on rules and parameters established for the driving behavior;

determining, by the control unit, after the detection of the activating request and based on the comparison, whether the recognized driver of the vehicle is suitable for utilizing the requested driver assistance system; and

controlling the requested driver assistance system depending on the determined suitability of the recognized driver for utilizing the requested driver assistance system, wherein the controlling is performed such that;

(i) when the ascertained behavior-based value is greater than the threshold value, the driver is determined to be suitable for utilizing the requested driver assistance system, and the driver assistance system is allowed to be in the active state; and

(ii) when the ascertained behavior-based value is not greater than the threshold value, the driver is determined to be unsuitable for utilizing the requested driver assistance system, and the requested driver assistance system is prevented from being in the active state.