Method for dynamically modifying an active safety system in a motor vehicle

Abstract

A method for dynamically modifying an active safety system (150) in a motor vehicle (100), comprising the method: - Detecting (10) a traffic situation (110) in which the motor vehicle (100) is located during a driving operation (120), wherein the detection of the traffic situation (110) is based on sensor information (130) of the motor vehicle (100), - determine (20) a probability of occurrence (141) of a critical driving situation (140) occurring for the motor vehicle (100), based on the recorded traffic situation (110), wherein the critical driving situation (140) has a safety relevance with regard to the occupant protection of the motor vehicle (100), - compare (30) the probability of occurrence (141) with a threshold (145), and - if the comparison of the probability of occurrence (141) with the threshold (145) shows that the critical driving situation (140) exists: - Keeping (40) the recorded traffic situation (110) and driving operation (120) as critical driving information (148), - intervention (50) of the active safety system (150) of the motor vehicle (100) in the driving operation (120) of the motor vehicle (100), based on conditioning information (151) of the active safety system (150) and based on the sensor information (130) of the motor vehicle (100), and - if the intervention (50) of the active safety system (150) of the motor vehicle (100) in the driving operation (120) of the motor vehicle (100) does not successfully overcome the critical driving situation (140): - Transmitting (60) the stored critical driving information (148) and the critical driving situation (140) to an analysis device (200), and - if the analysis device (200) receives critical driving information (148): - Evaluating (70) the critical driving information (148) regarding the avoidance of the critical driving situation (140) of the recorded traffic situation (110), - determine (80) a Reconditioning information (153) for the active safety system (150) of the motor vehicle (100), based on the evaluated (70) critical driving information (148), and wherein the evaluation (70) of the critical driving information (148) and the determination (80) of the reconditioning information (153) are carried out using the analysis device (200).

Description

[0001] The present invention relates to a method for the dynamic modification of an active safety system in a motor vehicle.

[0002] The design of active safety systems is currently carried out by experts who derive relevant influencing factors and parameters from a limited number of accident data sets. On the one hand, there are accident data sets with many records (>>10,000; Type 1), but with little detailed information about the exact sequence of events, as only the initial and final speeds, number of road users, time of day, and weather conditions are recorded. On the other hand, there are reconstructed accident data sets with fewer actual accidents (<10,000; Type 2), but these are described in great detail, including, for example, a survey of the exact accident site, a reconstruction of the movement patterns of individual road users, obstructions to visibility, and the like.

[0003] Type 1 data clearly indicate the types of accidents that typically occur in road traffic, but do not provide a precise account of the accident sequence. Data collection of type 2, on the other hand, is very complex and therefore usually only covers a limited regional area, thus representing only a very small proportion of all accidents in the field. Both data sources are also collected retrospectively, for example by the police, and are therefore subject to uncertainties, as the reconstruction is only an estimate of the accident sequence, which can therefore deviate slightly from the actual sequence of events.

[0004] Deriving relevant influencing factors in an accident sequence proves to be extremely difficult, as there is currently not much data available that can be used for the design and optimization of accident protection algorithms.

[0005] Furthermore, current accident databases do not provide information on near misses for the purpose of optimizing system design.

[0006] Therefore, it would be desirable to provide a way to make real accident data comprehensively available in order to achieve an improved design of active safety systems in motor vehicles.

[0007] The aim of the invention is to propose a possibility which avoids or at least reduces some of the disadvantages known in the prior art.

[0008] The problem is solved according to the invention by means of a method according to the main claim, as well as by means of a device and a motor vehicle according to the dependent claims.

[0009] The subject matter of the main claim relates to a method for dynamically modifying an active safety system in a motor vehicle. The method comprises: detecting a traffic situation in which the motor vehicle is operating during driving. This detection is based on sensor information from the motor vehicle. Determining the probability of a critical driving situation occurring for the motor vehicle, based on the detected traffic situation. This critical driving situation has safety relevance with regard to the occupant protection of the motor vehicle. Comparing the probability of occurrence with a threshold value. And if the comparison of the probability of occurrence with the threshold value shows that the critical driving situation exists, the method further comprises: storing the detected traffic situation and driving operation as critical driving information.Intervention of the vehicle's active safety system in the vehicle's driving operation, based on conditioning information from the active safety system and sensor information from the vehicle. If the intervention of the vehicle's active safety system in the vehicle's driving operation is unsuccessful in overcoming the critical driving situation, the vehicle transmits the stored critical driving information and the critical driving situation to an analysis device. If the analysis device receives critical driving information, the procedure further includes evaluating the critical driving information with regard to avoiding the critical driving situation of the detected traffic situation. Re-conditioning information for the vehicle's active safety system is then generated based on the evaluated critical driving information.This involves evaluating the critical driving information and determining the reconditioning information using the analysis device.

[0010] The process steps can be automated.

[0011] An active safety system within the meaning of the invention can mean a device and / or a system which can automatically intervene in the driving operation of the motor vehicle in order to prevent an accident or at least mitigate it.

[0012] A traffic situation within the meaning of the invention can refer to a situation in which the relevant motor vehicle is currently located. This situation can encompass circumstances related to the operation of the motor vehicle, as well as circumstances in the motor vehicle's surroundings. For example, a traffic situation in which the motor vehicle is located can include a turning maneuver, operation within a construction zone, and the like. Examples of the part of the traffic situation that arises from the motor vehicle's surroundings include the behavior of nearby motor vehicles and other road users, traffic light states and signs, the current road condition, traffic flow, current weather conditions, time of day, location, and the like.This data can include information about another road user, in particular their position, the type of road user (e.g., car, motorcycle, pedestrian, etc.), and their speed. The driver's behavior, such as gaze direction, pedal positions, vehicle operation, and the like, can also be recorded.

[0013] The recording of the traffic situation can be continuous or at least quasi-continuous. Based on this recorded data, a corresponding algorithm can continuously assess the traffic situation and determine the probability of a critical driving situation occurring.

[0014] Driving operation within the meaning of the invention can refer both to a journey of the corresponding motor vehicle and to driving-specific characteristics of the motor vehicle for this journey, such as current speed, acceleration, steering angle or wheel angle, modes of various driver assistance systems, highly automated or autonomous driving operation and the like.

[0015] Sensor information, as defined in the invention, can refer to information obtained by means of a vehicle sensor. This could be, for example, information from a video camera, such as a 360° camera, but also information obtained from other sensor data. Examples include infrared information, information from steering sensors, brake sensors, acceleration sensors, direction sensors, environmental sensors, driver sensors, and the like.

[0016] A critical driving situation within the meaning of the invention can refer to a driving situation that can be considered critical in terms of traffic and / or occupant safety. Preferably, exceeding or falling below a probability threshold can lead to a traffic situation being classified as critical with regard to the driving situation of the motor vehicle. Examples of critical driving situations are, in particular, traffic situations that are likely to lead to an accident involving the motor vehicle.

[0017] A threshold value within the meaning of the invention refers to a predefined value that triggers an event when this predefined value is exceeded or fallen below, depending on the system design. If such a threshold value is exceeded, a system reaction can be triggered, such as a warning to the driver or an automated intervention in vehicle control, such as braking or evasive action, according to the design of the active safety system. If it is determined that the system reaction will not be sufficient to prevent an accident, reconditioning can be carried out by analyzing the stored information or data in order to prevent such an accident in the future.

[0018] Safety relevance with regard to the occupant protection of the motor vehicle within the meaning of the invention refers to its significance for the physical integrity of the occupants of the motor vehicle.

[0019] In the context of the invention, "maintaining" the recorded traffic situation and driving operations means storing available information or data in an information technology format, which describes the recorded traffic situation and driving operations accordingly. For example, this can refer to the information technology storage of corresponding sensor data, actuator control values, and the like.

[0020] This allows the vehicle to record critical situations, such as accidents, near misses, and the like. Furthermore, in addition to traffic situation data, driving data can also be stored, including, for example, how the vehicle reacted in the situation, whether a system response was triggered, what conditions existed for the system response, and so on.

[0021] Conditioning information for the active safety system, as defined in the invention, refers to an information technology description for devices and / or parts of the active safety system. For example, it could refer to a triggering strategy and / or execution strategy for an accident avoidance procedure of the motor vehicle. This could, for instance, mean a strategy for an evasive maneuver of the motor vehicle in the corresponding critical driving situation. Further examples include strategies for a braking procedure, an acceleration procedure, a steering procedure, and a signaling procedure.

[0022] Overcoming a critical driving situation within the meaning of the invention refers to a process that leads to the defusing of the critical driving situation, for example, by successfully intervening with the active safety system and thus preventing an accident. Another way of overcoming a critical driving situation could be, for example, a plausibility check of acquired sensor data, which results in the predefined threshold for the probability of occurrence of the corresponding critical situation, such as an accident caused by a vehicle collision, being either undershot or exceeded, meaning that the threshold is no longer reached and the critical situation is therefore deemed not to have occurred.

[0023] An analysis device within the meaning of the invention means a device which is set up to evaluate the obtained information technology data relating to the traffic situation and driving operation or the critical driving situation accordingly, with regard to an optimized design for an active safety system in order to be able to defuse, avoid or resolve the critical driving situation, in the sense that the expected negative effects on the motor vehicle, its occupants, surrounding road users and / or the vehicle environment itself will not occur for the corresponding critical driving situation.For example, the evaluation of the relevant information technology data in the analysis device for the corresponding critical driving situation can lead to the determination of a new design for an active safety system, which in the future, if the corresponding driving situation is detected again, can prevent this occurrence by means of the active safety system.

[0024] The invention offers the advantage of providing real and very detailed accident data, which can then be used for optimization to achieve even better protection against vehicle accidents.

[0025] The subject matter of a dependent claim relates to an analysis device for analyzing a critical driving situation of a motor vehicle. The analysis device comprises: a receiving means for receiving a detected traffic situation; an evaluation means for evaluating the detected traffic situation with regard to avoiding a critical driving situation; a determination means for determining reconditioning information for an active safety system of the motor vehicle; and a transmission means for transmitting the reconditioning information to the active safety system of the motor vehicle. The analysis device is configured to execute that part of any method according to the invention which relates to the analysis device.

[0026] The invention offers the advantage that real and very detailed accident data can be recorded and evaluated at short notice, which can then lead to even better protection against vehicle accidents through subsequent optimization.

[0027] The subject matter of a further dependent claim relates to a motor vehicle comprising: A detection means for recording a traffic situation in which the motor vehicle is located. A determination means for determining the probability of a critical driving situation occurring for the motor vehicle, based on the detected traffic situation. The critical driving situation has safety relevance with regard to the occupant protection of the motor vehicle. A comparison means for comparing the probability of occurrence with a threshold value. A storage means for storing the detected traffic situation and the driving operation of the motor vehicle as critical driving information. A transmission means for transmitting the critical driving information and the critical driving situation to an analysis device. A receiving means for receiving reconditioning information.And a modification means for modifying the active safety system of the motor vehicle, based on the reconditioning information. The motor vehicle is configured to execute that part of any method according to the invention which does not relate to the analysis device.

[0028] The teaching according to the invention achieves the advantage that motor vehicles in the field can collect, make available and evaluable real and very detailed accident data, which can lead to even better protection against vehicle accidents.

[0029] The subject matter of a further dependent claim relates to a computer program product for an analysis device and / or for a motor vehicle, which is respectively operable according to a corresponding part of any method according to the invention.

[0030] The invention offers the advantage that the process can be carried out in a particularly efficient and automated manner.

[0031] The subject matter of a further dependent claim relates to a computer program product according to the invention, comprising a data carrier.

[0032] The teaching according to the invention offers the advantage that the method can be distributed or kept available particularly efficiently on the analysis devices and / or motor vehicles executing the method.

[0033] Before describing embodiments of the invention in more detail, it should first be noted that the invention is not limited to the components or process steps described. Furthermore, the terminology used does not represent a limitation but is merely exemplary. Where the singular is used in the description and claims, the plural is always included unless the context explicitly excludes this. Any process steps can be automated unless the context explicitly excludes this. Corresponding process sections can lead to corresponding device features and vice versa, so that, unless the context explicitly excludes this, a change from a process feature to a device feature is possible and vice versa.

[0034] Further exemplary embodiments of the method according to the invention are explained below.

[0035] According to a first exemplary embodiment, if the analysis device receives critical driving information, the procedure further comprises: transmitting the reconditioning information to the active safety system of another vehicle; and modifying the active safety system of the other vehicle based on the transmitted reconditioning information.

[0036] This design offers the advantage of providing even better protection against vehicle accidents for driver assistance systems, highly automated driving systems, and highly autonomous driving systems in motor vehicles. A further advantage is that such an active safety system can be adapted in the field to offer improved protection against future accidents. Another advantage is that, if an accident is unavoidable, the active safety system can be conditioned to minimize the resulting damage, particularly with regard to occupant protection.

[0037] According to a further exemplary embodiment, the procedure also shows that the transmission of the stored critical driving information and the critical driving situation to the analysis device also takes place if the intervention of the active safety system of the motor vehicle in the driving operation of the motor vehicle successfully overcomes the critical driving situation.

[0038] This design has the advantage that even better protection against vehicle accidents can be provided by evaluating all events assessed as critical situations.

[0039] According to a further exemplary embodiment, the method also shows that the sensor information of the motor vehicle contains information regarding currently detected road users, currently detected road course and currently detected behavior of the motor vehicle and / or driver of the motor vehicle, in a sensor environment of the motor vehicle.

[0040] This design has the advantage that even better protection against accidents can be provided by being able to determine even more detailed data on the traffic situation.

[0041] According to a further exemplary design, the procedure also shows that the critical driving situation has a safety relevance with regard to the protection of one of the currently detected road users.

[0042] This design has the advantage of providing improved occupant protection.

[0043] According to another exemplary embodiment, the procedure further specifies that the recorded traffic situation is stored for a period of time that has a first duration and a second duration. The first duration comprises a period of time before the occurrence of the critical driving situation, and the second duration comprises a period of time after the occurrence of the critical driving situation.

[0044] This design has the advantage that relevant data is not only stored at the time of the accident, but also stored and evaluated over a corresponding period before and after the time of the accident, thus enabling even better reconditioning of the inactive safety system.

[0045] According to another exemplary embodiment, the procedure further shows that the evaluation of critical driving information is based on a self-learning algorithm.

[0046] This design has the advantage that even better protection against vehicle accidents can be provided by using algorithms for a redesign of an active safety system that can improve or modify existing designs by learning automatically, thereby improving the evaluation.

[0047] According to another exemplary embodiment, the procedure further indicates that the self-learning algorithm includes one of the following algorithms: Dynamic Bayesian Networks, Neural Networks, Deep Learning, Random Forests, Support Vector Machines and Gaussian Mixture Models.

[0048] This design has the advantage that even better protection against vehicle accidents can be provided by using special self-learning algorithms for a redesign of an active safety system, which can improve or modify existing designs accordingly, for example by learning similarly to humans, thereby improving the evaluation.

[0049] According to a further exemplary embodiment, the procedure also shows that the critical driving situation involves a traffic accident of the motor vehicle.

[0050] This allows the active safety system to be reconditioned, i.e., redesigned, in such a way that it can avoid the traffic accident in the best possible way.

[0051] This design has the advantage that even better protection against traffic accidents can be provided by evaluating traffic accident situations.

[0052] According to another exemplary embodiment, the procedure further indicates that the motor vehicle is in at least a highly automated driving mode during the execution of the procedure.

[0053] The vehicle can also be in autonomous driving mode during the execution of the procedure.

[0054] A highly automated driving operation within the meaning of the invention can mean a driving operation in which the motor vehicle drives independently and a driver retains and / or must retain control over the motor vehicle by being prepared to intervene in the driving operation at any time.

[0055] An autonomous driving operation within the meaning of the invention can mean a driving operation that is more automated than a highly automated driving operation and in which therefore no intervention by a driver is necessary at all times.

[0056] This design has the advantage of providing improved protection against traffic accidents for motor vehicles that are in autonomous driving mode.

[0057] According to another exemplary embodiment, the procedure also includes a validation of the determined reconditioning information. This validation of the reconditioning information is performed using the analysis device.

[0058] This design has the advantage that even better protection against vehicle accidents can be provided by subjecting a redesign of an active safety system to a validating test to ensure that the redesign does not have any undesirable side effects before it is made available to vehicles in the field.

[0059] According to another exemplary embodiment, the method further shows that the analysis device is located external to the motor vehicle and has a backend server located external to the motor vehicle.

[0060] This design has the advantage that even better protection against vehicle accidents can be provided by using more memory-intensive and / or computationally intensive analysis devices that are not suitable for installation in a motor vehicle.

[0061] According to a further exemplary embodiment, the motor vehicle also has an analysis device according to the invention. And the motor vehicle is configured to carry out any method according to the invention.

[0062] This design has the advantage that the vehicle in question has its own analysis capability for the stored data, without this having to be carried out in an external backend.

[0063] Another advantage can be the provision of rapidly available improved protection against vehicle accidents, which can be provided independently of a central analysis authority by using analysis devices suitable for installation in a motor vehicle.

[0064] The idea describes a method for improving the system design of active safety systems using recorded real-world critical situations.

[0065] In the event of accidents involving other road users or single-vehicle accidents, the accident can be recorded in detail by an electronic data recorder in order to later reconstruct the sequence of events from the vehicle's perspective. The following data, for example, can be stored and retained for this purpose: • Data captured by the local vehicle sensors, such as vehicle data, driver behavior, trajectories of other road users, road conditions, visibility obstructions, and the like. • provided data such as a high-precision map, backend information, and the like, and • a triggering strategy of the active security system.

[0066] The stored data set can then be transferred from the electronic data recorder, for example, to the vehicle manufacturer. This can occur directly via a mobile data connection between the vehicle and the manufacturer's backend, or via an authorized institution that provides the data set to the manufacturer. The vehicle manufacturer can store the accident data anonymously. Using self-learning algorithms, the real-world accident data can be used to optimize the design of active safety systems and subsequently evaluate them using an effectiveness analysis. The new design can then be validated to ensure that it will not lead to any significant negative effects in real-world driving conditions.The new configuration can then be transmitted to the vehicles in the field, for example via a mobile data connection. The vehicles can then replace the old configuration with the new one.

[0067] This makes it possible to conduct a detailed assessment of the traffic situation, including identifying road users, road layout, driver behavior, local conditions, time, date, and similar data. Furthermore, a near-continuous risk assessment of the traffic situation can be performed to warn the driver of potential hazards at an early stage. Additionally, risk can be pre-assessed, for example, by providing detailed information on influencing factors such as drivers unfamiliar with the area, schools along the navigation route, driver intent, road geometry, and similar factors, thus enabling, for instance, the pre-conditioning of the active safety system.

[0068] Storing data on the accident situation for several seconds before and after a critical driving situation, such as a collision, accident, system misinterpretation, etc., allows for detailed recording of the accident sequence at the sensor level and the behavior of the assistance functions. Examples of such retainable data in critical situations include the trajectory of the vehicle and other road users, driver behavior such as vehicle operation, gaze patterns, and the like, position and time, detected objects within the detection range, the available space around the vehicle, road geometry, traffic light states, road conditions, vehicle data, information provided by the backend or other vehicles, and similar data that can be used to optimize the design of active safety systems for the purpose of minimizing accidents.

[0069] The transmission of recorded relevant accident data can take place directly with the vehicle manufacturer, for example via 3G, LTE, or future mobile communication standards. Additionally, the data can also be provided by an authorized body or another vehicle manufacturer to obtain a larger database of real-world critical situations with detailed descriptions. However, it should be noted that not all data may be provided in this way, such as the activation strategy, the vehicle's behavior before the crash, and similar information, which would prevent reliable conclusions about the system activation.

[0070] An analysis of real-world accident data can be performed in the vehicle manufacturer's backend to optimize the design of active safety systems. This allows for the consideration of real-world accident scenarios, which are difficult to capture, and the extraction of relevant events—those of particularly high significance—as influencing factors. This can be achieved, for example, using self-learning algorithms such as Dynamic Bayesian Networks, Neural Networks, Support Vector Machines, Gaussian Mixture Models, and similar tools to improve the design of active safety systems. However, the optimization process should ideally consider not only accidents but also critical non-triggering and false triggering events to cover as much of the system response and intervention spectrum as possible.

[0071] The recorded critical situations, such as accidents, avoided accidents, non-triggering incidents and false triggering incidents, can be used to determine the effectiveness and the expected false positive rate during field implementation.

[0072] The recorded critical situations can also be enriched with data from traffic simulation and detailed reconstructed accident data. This can be particularly advantageous until sufficient real, meaningful field data is available.

[0073] The new design can be transferred and activated to the relevant vehicles in the field via an online update.

[0074] The invention thus makes it possible to record the sequence of events in an accident or near-miss in a motor vehicle involved in the accident or near-miss, based on technologies that will be installed in vehicles in the future or are already partially installed in motor vehicles. Examples of such installable technologies include 360° environmental perception, driver monitoring, detailed information on road topology, and the behavior of the vehicle's active safety systems. Such recorded critical situations, such as accidents, avoided accidents, false alarms, and the like, can be transmitted to a backend system, for example, that of the vehicle manufacturer. This allows for the creation of a database of such critical situations, which can potentially be expanded to include critical situations from other vehicle manufacturers.From this, relevant influencing factors for the corresponding critical situations can be derived, which can be used to dynamically design active safety systems using self-learning algorithms. Furthermore, a new design of an active safety system can be validated before a new, optimized design is transferred to corresponding vehicles in the field. The new design of the corresponding active safety system is then activated in these vehicles. This can lead to an increased number of accidents being avoided.

[0075] This has the advantage that the optimization of active safety system design can be achieved using a large database of real-world critical situations, by extracting relevant influencing factors from these situations rather than relying solely on a few reconstructed accidents. Analysis of the current design can be performed by recording the system's response in a critical situation. Design validation can be carried out using real-world critical situations, not just a few reconstructed accidents and automatically generated scenarios. This approach enables the identification and derivation of influencing factors from critical situations that would otherwise not be reconstructed, such as minor property damage or accidents in regions where accident reconstruction is not conducted.

[0076] The invention will be explained in more detail below with reference to the figures. These show: Fig. 1 a schematic representation of a proposed method according to an exemplary embodiment of the invention; Fig. 2 a schematic representation of a proposed method according to a further exemplary embodiment of the invention; Fig. 3 a schematic representation of a proposed method according to a further exemplary embodiment of the invention; Fig. 4 a schematic representation of a proposed device according to a further exemplary embodiment of the invention; Fig. 5 a schematic representation of a proposed motor vehicle according to a further exemplary embodiment of the invention; Fig. 6 a schematic representation of a proposed motor vehicle according to a further exemplary embodiment of the invention; and Fig. 7 a schematic representation of the system behavior of an active safety system of a motor vehicle according to a further exemplary embodiment of the invention.

[0077] Fig. Figure 1 shows a schematic representation of a proposed method according to an exemplary embodiment of the invention.

[0078] This shows Fig. 1 A schematic representation of a method for the dynamic modification of an active safety system 150 in a motor vehicle 100. The method comprises: 10 Detecting a traffic situation 110 in which the motor vehicle 100 is located during driving 120, wherein the detection of the traffic situation 110 is based on sensor information 130 of the motor vehicle 100. 20 Determining a probability 141 of occurrence of a critical driving situation 140 for the motor vehicle 100, based on the detected traffic situation 110, wherein the critical driving situation 140 has safety relevance with regard to the occupant protection of the motor vehicle 100. 30 Comparing the probability 141 of occurrence with a threshold value 145.And if the comparison of the probability of occurrence 141 with the threshold 145 shows that the critical driving situation 140 exists, the method further comprises a provision 40 of the detected traffic situation 110 and the driving operation 120 as critical driving information 148 and an intervention 50 of the active safety system 150 of the motor vehicle 100 in the driving operation 120 of the motor vehicle 100, based on conditioning information 151 of the active safety system 150 and based on the sensor information 130 of the motor vehicle 100. And if the intervention 50 of the active safety system 150 of the motor vehicle 100 in the driving operation 120 of the motor vehicle 100 does not successfully overcome the critical driving situation 140, the method further comprises a transmission 60 of the provisioned critical driving information 148 and the critical driving situation 140 to an analysis device 200.And if the analysis device 200 receives critical driving information 148, the procedure includes an evaluation 70 of the critical driving information 148 with regard to avoiding the critical driving situation 140 of the detected traffic situation 110 and a determination 80 of reconditioning information 153 for the active safety system 150 of the motor vehicle 100, based on the evaluated 70 critical driving information 148. The evaluation 70 of the critical driving information 148 and the determination 80 of the reconditioning information 153 are carried out using the analysis device 200.

[0079] Fig. Figure 2 shows a schematic representation of a proposed method according to a further exemplary embodiment of the invention.

[0080] This shows Fig. 2 a schematic representation of a with respect to the Fig. 1 further developed procedure. The one previously used for Fig. What has been said also applies to Fig. 2 continued.

[0081] Fig. 2 shows the procedure from Fig. 1 in which, if the analysis device 200 receives critical driving information 148, the method further comprises: transmitting 90 the reconditioning information 153 to the active safety system 200 of another motor vehicle 100'. And modifying 92 the active safety system 150 of the other motor vehicle 100', based on the transmitted reconditioning information 153.

[0082] Fig. Figure 3 shows a schematic representation of a proposed method according to a further exemplary embodiment of the invention.

[0083] This shows Fig. 3 a schematic representation of a with regard to the Fig. 2 further developed procedures. The one previously used for Fig. 1 and Fig. The second point made also applies to Fig. 3 continued.

[0084] Fig. Figure 3 shows the procedure from Fig. 2, in which the procedure further includes a validation 82 of the determined reconditioning information 153. And the validation 82 of the reconditioning information 153 is carried out using the analysis device 200.

[0085] Fig. Figure 4 shows a schematic representation of a proposed device according to a further exemplary embodiment of the invention.

[0086] Fig. Figure 4 shows an analysis device 200 for analyzing a critical driving situation 140 of a motor vehicle 100, comprising: a receiving means 260 for receiving a detected traffic situation 110; an evaluation means 270 for evaluating 70 the detected traffic situation 110 with regard to avoiding a critical driving situation 140; a determination means 280 for determining 80 reconditioning information 153 for an active safety system 150 of the motor vehicle 100; and a transmission means 290 for transmitting 90 the reconditioning information 153 to the active safety system 150 of the motor vehicle 100. The analysis device 200 is configured to perform that part of any method according to the invention which relates to the analysis device 200.

[0087] Fig. Figure 5 shows a schematic representation of a proposed motor vehicle according to a further exemplary embodiment of the invention.

[0088] This shows Fig. 5 A schematic representation of a motor vehicle 100, comprising: A detection device 1100, for detecting 10 a traffic situation 110 in which the motor vehicle 100 is located. A determination device 1200, for determining 20 a probability 141 of occurrence of a critical driving situation 140 for the motor vehicle 100, based on the detected traffic situation 110, wherein the critical driving situation 140 has safety relevance with regard to the occupant protection of the motor vehicle 100. A comparison means 1300, for comparing 30 of the probability of occurrence 141 with a threshold value 145. A holding means 1400, for holding 40 of the recorded traffic situation 110 and of a driving operation 120 of the motor vehicle 100 as a critical driving information 148. A transmission means 1600, for transmitting 60 of the critical driving information 148 and the critical driving situation 140 to an analysis device 200.A receiving means 1900 for receiving reconditioning information 153. And a modifying means 1920 for modifying 92 the active safety system 150 of the motor vehicle 100 based on the reconditioning information 153. And the motor vehicle 100 is configured to perform that part of any method according to the invention which does not relate to the analysis device.

[0089] Fig. Figure 6 shows a schematic representation of a proposed motor vehicle according to a further exemplary embodiment of the invention.

[0090] This shows Fig. 6 a schematic representation of a with regard to the Fig. 5 further developed motor vehicle. The one previously for Fig. The points mentioned above also apply to… Fig. 6 continued.

[0091] This shows Fig. 6 the motor vehicle 100 out Fig. 5, wherein the motor vehicle 100 further comprises an analysis device 200 according to the invention. And the motor vehicle 100 is configured to carry out any method according to the invention.

[0092] Fig. Figure 7 shows a schematic representation of the system behavior of an active security system 150 (in Fig. 7 not shown) of a motor vehicle 100 (in Fig. 7 not shown) according to a further exemplary embodiment of the invention.

[0093] This shows Fig. 7 a diagram for possible system responses or possible system behavior or possible intervention 50 of the active safety system 150 in the driving operation 120 (in Fig. (7 not shown) of the motor vehicle 100 depending on a critical driving situation 140. In the case of a non-critical driving situation 140, No, a system response 50 may occur FP or refrain from occurring TN. Conversely, in the case of a critical driving situation 140, Yes, a system response 50 may also occur TP, NM or refrain from occurring FN. If a system response 50 occurs TP, NM, it may lead to the avoidance of an accident and thus be successful TP, or despite intervention 50, Yes by the active safety system 150, it may lead to an accident NM. These system responses can also be stored as information and sent to an analysis device 200 (in Fig. 7 not shown) will be transmitted. This will allow for an even better reinterpretation of 153 (in Fig. 7 not shown) of an active security system 150 can be achieved.

[0094] The active safety system 150 can also be designed as a single active safety device. Even in this case, however, it is still referred to as an active safety system 150, since any intervention 50 in the driving operation 120 of the motor vehicle 100 triggered by this active safety device is generally extensive and therefore also has a systemic character. Reference symbol list 10. Assessing a traffic situation 20. Determine a probability of occurrence 30. Comparing the probability of occurrence with a threshold value 40. Maintaining the recorded traffic situation 50 Intervention of the active safety system in the driving operation of the motor vehicle 60. Transmitting the available critical driving information and the critical driving situation to an analysis device 70 evaluate critical driving information 80 Determine reconditioning information for the active safety system of the motor vehicle 90 transmit the reconditioning information to the active safety system of another motor vehicle 92 modifying the active safety system of the other motor vehicle 100 motor vehicles 100' additional motor vehicle 110 Traffic situation 120 driving operation 130 Sensor information 140 critical driving situation 141 Probability of occurrence 145 threshold 148 critical driving information 150 active security system 151 Conditioning Information 153 Reconditioning Information 200 analyzer 260 receiving devices 270 evaluation tools 280 investigative tools 290 means of transmission 1100 recording devices 1200 investigative tools 1300 comparative instruments 1400 reserve funds 1600 means of transmission 1900 receiving devices 1920 Modification agent FN Accident without system response in critical driving situation (false negative) FP system response without a critical driving situation (false positive) NM Accident with system response in critical driving situation (near miss) TN no accident without system response in non-critical driving situations (true negative) TP No accident with system response in critical driving situation (true positive)

Claims

[1] A method for dynamically modifying an active safety system (150) in a motor vehicle (100), comprising the method: - Detecting (10) a traffic situation (110) in which the motor vehicle (100) is located during a driving operation (120), wherein the detection of the traffic situation (110) is based on sensor information (130) of the motor vehicle (100), - determine (20) a probability of occurrence (141) of a critical driving situation (140) occurring for the motor vehicle (100), based on the recorded traffic situation (110), wherein the critical driving situation (140) has a safety relevance with regard to the occupant protection of the motor vehicle (100), - compare (30) the probability of occurrence (141) with a threshold (145), and - if the comparison of the probability of occurrence (141) with the threshold (145) shows that the critical driving situation (140) exists: - Keeping (40) the recorded traffic situation (110) and driving operation (120) as critical driving information (148), - intervention (50) of the active safety system (150) of the motor vehicle (100) in the driving operation (120) of the motor vehicle (100), based on conditioning information (151) of the active safety system (150) and based on the sensor information (130) of the motor vehicle (100), and - if the intervention (50) of the active safety system (150) of the motor vehicle (100) in the driving operation (120) of the motor vehicle (100) does not successfully overcome the critical driving situation (140): - Transmitting (60) the stored critical driving information (148) and the critical driving situation (140) to an analysis device (200), and - if the analysis device (200) receives critical driving information (148): - Evaluating (70) the critical driving information (148) regarding the avoidance of the critical driving situation (140) of the recorded traffic situation (110), - determine (80) a Reconditioning information (153) for the active safety system (150) of the motor vehicle (100), based on the evaluated (70) critical driving information (148), and wherein the evaluation (70) of the critical driving information (148) and the determination (80) of the reconditioning information (153) are carried out using the analysis device (200). [2] The method according to claim 1, wherein the method further comprises, if the analysis device (200) receives critical driving information (148): - Transmitting (90) the reconditioning information (153) to the active safety system (200) of another motor vehicle (100'), and - modify (92) the active safety system (200) of the other motor vehicle (100') based on the transmitted reconditioning information (153). [3] The method according to claim 2, wherein the method further comprises that the transmission (60) of the stored critical driving information (148) and the critical driving situation (140) to the analysis device (200) also takes place when the intervention (50) of the active safety system (150) of the motor vehicle (100) in the driving operation (120) of the motor vehicle (100) successfully overcomes the critical driving situation (140). [4] The method according to any of the preceding claims, wherein the sensor information (130) of the motor vehicle (100) includes information regarding currently detected road users, currently detected road course and currently detected behavior of the motor vehicle (100) and / or driver of the motor vehicle (100) in a sensor environment of the motor vehicle (100). [5] The method according to any of the preceding claims, wherein the critical driving situation (140) has a safety relevance with regard to the protection of one of the currently detected road users. [6] The method according to any of the preceding claims, wherein the holding (40) of the recorded traffic situation (110) takes place over a time which has a first duration and a second duration, and wherein the first duration has a first time interval before the occurrence of the critical driving situation (140) and the second duration has a second time interval after the occurrence of the critical driving situation (140). [7] The method according to any of the preceding claims, wherein the evaluation (70) of the critical driving information (148) is based on a self-learning algorithm. [8] The method according to any of the preceding claims, wherein the critical driving situation (140) involves a traffic accident of the motor vehicle (100). [9] The method according to any of the preceding claims, wherein the motor vehicle (100) is in at least a highly automated driving mode during the execution of the method. [10] The method according to any of the preceding claims, further comprising: - Validating (82) the determined reconditioning information (153), wherein the validation (82) of the reconditioning information (153) is carried out using the analysis device (200). [11] The method according to any of the preceding claims, wherein the analysis device (200) is located outside the motor vehicle and has a backend server located outside the motor vehicle. [12] An analysis device (200) for analyzing a critical driving situation (140) of a motor vehicle (100), comprising the analysis device (200): - A receiving device (260) for receiving a recorded traffic situation (110), - an evaluation tool (270) for evaluating (70) the recorded traffic situation (110) with regard to avoiding a critical driving situation (140) of the recorded traffic situation (110), - an investigative tool (280) for determining (80) reconditioning information (153) for an active security system (150) of the motor vehicle (100), and - a transmission means (290) for transmitting (90) the reconditioning information (153) to the active safety system (150) of the motor vehicle (100), and wherein the analysis device (200) is configured to perform that part of a method according to any of the preceding claims which relates to the analysis device (200). [13] A motor vehicle (100), comprising: - An active security system (150), - a recording device (1100) for recording (10) a traffic situation (110) in which the motor vehicle (100) is located, - an investigative tool (1200) for determining (20) a probability (141) of a critical driving situation (140) occurring for the motor vehicle (100), based on the recorded traffic situation (110), wherein the critical driving situation (140) has a safety relevance with regard to the occupant protection of the motor vehicle (100), - a comparator (1300), for comparing (30) the probability of occurrence (141) with a threshold (145), - a holding device (1400) for holding (40) the recorded traffic situation (110) and driving operation (120) of the motor vehicle (100) as critical driving information (148), - a transmission device (1600) for transmitting (60) the critical driving information (148) and the critical driving situation (140) to an analysis device (200), - a receiving device (1900), for receiving reconditioning information (153), and - a modification means (1920) for modifying (92) the active safety system (150) of the motor vehicle (100) based on the reconditioning information (153), and wherein the motor vehicle (100) is configured to perform that part of a method according to any of the preceding claims 1 to 11 which does not relate to the analysis device. [14] A motor vehicle (100) according to claim 13, further comprising: - An analysis device (200) according to claim 12, wherein the motor vehicle (100) is configured to perform a method according to any of the preceding claims 1 to 11. [15] A computer program product for an analysis device (200) according to claim 12 and / or for a motor vehicle (100) according to claim 13 or 14, which respectively is operable according to a corresponding part of a method according to any of the preceding claims 1 to 11. [16] A data carrier comprising a computer program product according to claim 15.

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