Abstract: A method to warn of a vehicle moving in the wrong direction of travel, wherein in a provision step, a third-party warning message is provided for other road users when at least one wrong-way-driver signal signals wrong-way travel of the wrongly moving vehicle sensed using a wrong-way-driver sensing method, and in an output step, a self-warning message is output for a driver of the vehicle moving in the wrong direction of travel when the wrong-way-driver signal signals the sensed wrong-way travel and at least one further wrong-way-driver signal signals the wrong-way travel of the wrongly moving vehicle sensed using a further wrong-way-driver sensing method, the further wrong-way-driver sensing method differing from the wrong-way-driver sensing method.

Abstract: A method for ascertaining a minimum value for the friction coefficient of a road segment, in which at least one movement variable of a second vehicle, which characterizes the vehicle movement, is ascertained with the aid of a surroundings sensor system contained in a first vehicle; a minimum value for the friction coefficient of the road segment traveled by the second vehicle is ascertained on the basis of the at least one movement variable of the second vehicle; the spatial position of the first vehicle is ascertained; the relative position of the second vehicle with respect to the first vehicle is ascertained with the aid of the surroundings sensor system; the spatial position of the second vehicle is ascertained with the aid of the spatial position and the relative position of the first vehicle; the spatial position of the second vehicle and the minimum value are stored in a database.

Abstract: In a method for detecting the drowsiness of a driver in a vehicle, a course of a circadian curve is modified as a function of the environmental brightness.

Abstract: In a method for ascertaining a degree of attentiveness of a vehicle driver during travel with his vehicle, e.g., a motor vehicle, using a sensor of the vehicle, a direction of vision of the vehicle driver toward a region of a surrounding environment visible to the driver is recognized, and the region visible to the vehicle driver is assigned a probability distribution through which, on the basis of the recognized direction of vision of the vehicle driver, a degree of attentiveness of the vehicle driver is ascertained.

Abstract: A method for determining a variable which represents the condition of a driver of a vehicle, the variable being determined independently of the time using at least one other variable representing the light intensity to which the driver is exposed.

Abstract: A method for predicting an instant at which a predefined fatigue degree is expected to be reached in a vehicle system for fatigue detection, includes: (i) detecting the fatigue characteristic by continuously ascertaining the current fatigue degree of the vehicle operator; (ii) ascertaining a change in the fatigue degree over time within a predefinable time interval of the fatigue characteristic, and/or supplying an empirically determined change in fatigue degree over time; and (iii) ascertaining the instant at which a predefined fatigue degree is expected to be reached, based on the ascertained and/or supplied change in the fatigue degree.

Abstract: A method for assigning a driver of a vehicle to a driver class stored in the vehicle and representing a specific driving behavior of the driver after a driving pause includes identifying the driver based on an acquisition of data indicating an occupancy of only one seat of the vehicle before and after the driving pause, and/or based on an acquisition, before and after the driving pause, of a recognition code of a technological device assigned to the driver, and, based on the identification, using the driver class assigned to the identified driver.

Abstract: In a method for filtering object information, first and second pieces of object information are read in, the first piece of object information representing at least one object detected and identified by a first sensor and the second piece of object information representing at least two objects detected and identified by a second sensor, the first sensor being based on a first sensor principle and the second sensor being based on a second sensor principle differing from the first sensor principle. At least one of the objects in the second piece of object information is also represented in the first piece of object information, and a filtered piece of object information is output which corresponds to objects represented only in the second piece of object information but not in the second piece of object information.

Abstract: A method for supplementing a piece of object information assigned to an object situated in surroundings of a vehicle includes: reading in a piece of sensor information; evaluating the sensor information; and expanding the object information. In the step of reading in, the piece of sensor information represents a response of a driver of the vehicle to an object situated in a viewing direction of the driver. In the step of evaluating, the sensor information is evaluated to obtain a piece of detection information representing whether the driver has detected the object. In the step of expanding, the object information is expanded with the piece of detection information.

Abstract: A method for detecting the attentional state of the driver of a vehicle includes ascertaining an attention index from the lateral deviation from the original lane and the steering angle correction.

Abstract: In a method for detecting the drowsiness of a driver in a vehicle, a course of a circadian curve is modified as a function of the environmental brightness.

Abstract: A method for determining a variable which represents the condition of a driver of a vehicle, the variable being determined independently of the time using at least one other variable representing the light intensity to which the driver is exposed.