Notification management method for a vehicle-based man-machine interface and vehicle equipped with a notification management system

Abstract

The present invention relates to a standard notification management method for a vehicle-based human-machine interface with at least one notification channel, wherein the notification management system forwards notifications intended for at least one vehicle occupant and / or at least one vehicle functional module to a notification channel or withholds the notifications depending on a priority associated with the notification. The method according to the present invention is characterized in that: the priority associated with the notification is specified by a priority number; a notification is selected and forwarded to a notification channel if its priority number exceeds a channel threshold assigned to the notification channel and the notification has the highest priority number for the respective notification channel; the channel threshold varies over time and, in a standard operating mode, is specified by the notification management system between a minimum and a maximum threshold for a predetermined time interval based on driving data, vehicle surroundings data, vehicle data, and / or human-machine interface status data, and / or at least one temporally previous notification transmission and / or vehicle occupant observation data.

Description

[Technical Field]

[0001] The present invention relates to a notification management method for a vehicle-based man-machine interface of the kind recited in the preamble of claim 1, as well as to a vehicle equipped with a notification management system. [Background technology]

[0002] The development of assistance systems is progressing in parallel with the increasing demands on information management for infotainment systems in vehicles, which are expanding towards more complex human-machine interfaces. In this case, numerous interaction channels are provided for conveying information and influencing the driver. One of the traditional interaction channels for displaying visual information is the graphical user interface (GUI), which is typically designed as a touch-sensitive display on the vehicle console. For this purpose, in addition to large LCD displays, projection systems that generate images on the interior surfaces of the vehicle are increasingly being used. Smart glasses worn by the driver and that communicate wirelessly with the infotainment system also offer a possible visual interaction channel. The use of acoustic interaction channels, for example via voice assistants or using warning sounds or recognizable message melodies, is also important.

[0003] Furthermore, human-machine interfaces can use haptic signals as well as other influences on the driver to convey information. Subliminal measures to improve attention and generally improve travel comfort are also possible. For example, appropriate airflow, heat, cold, or scent stimuli can be used as alternative interaction channels. Seat massage devices are also possible interaction channels of vehicle-based human-machine interfaces for message transmission.

[0004] In addition to transmitting data related to the vehicle and its surroundings, people often want to receive entertainment notifications while driving and stay in touch with the outside world. Possible notifications from the human-machine interface therefore include the playback of media content, such as movies or music videos, or audio content, such as audiobooks, songs, or podcasts. Furthermore, the human-machine interface should be able to initiate the playback of social media content or podcasts, or output data generated by chat or videoconferencing programs. In this case, the human-machine interface handles notifications not only for the driver but also notifications primarily intended for other vehicle occupants.

[0005] The increased density of information and the expansion of interaction possibilities creates a need to select from a wide range of possible notifications (herein referred to as proactive notifications) that are not directly requested by the driver but are sent by the human-machine interface, and to determine when and through which available interaction channels to alert the driver or vehicle occupants with such notifications. The stream of notifications must be prevented from becoming distracting, tiring, or overly demanding, particularly for the driver. Furthermore, the constant streaming of proactive notifications and the selected delivery method must not create a sense of boredom or being controlled by the human-machine interface. Relevant information in the stream of notifications must be consciously perceptible, particularly to the driver, and delivered at the right time. These concerns pose challenges to methods for notification management and the systems used therefor.

[0006] Methods for prioritizing messages are known from other technical fields. For example, Patent Document 1 describes a prioritization system for messages generated by multiple apps on an electronic device. The rule-based selection of app notifications for forwarding to a respective user interface (here, a single display) is based on the priority assigned to each app during the installation process. A typical application case is a computer system running a software program that generates a large number of notifications, such as an email program or a game. This prioritization system ensures that a predetermined number of app notifications forwarded to the system user is not exceeded within a given time. In this case, if multiple notifications arrive simultaneously, only the notification originating from the app with the highest priority is selected for display. Applying such a rule-based concept with default priorities to a vehicle's human-machine interface would result in a complex system requiring high administrative effort for configuration, especially due to the large number of interaction channels on the vehicle side.

[0007] Another message prioritization scheme is known from US Pat. No. 5,699,499, which is primarily intended for use in e-mail processing. It proposes assigning classifiers to messages, particularly specifying their urgency and / or relevance. The selection of messages to be sent to a user is then rule-based, based on the reference of the classifiers and on a profile initially set by the recipient. Typically, different profiles are created by the user depending on their location and their respective activities. For example, different profiles can be created for work, holidays, vacations, travel, etc. When an activity is performed outside the workplace or home, e-mails automatically selected by the message prioritization system are sent to the user's designated mobile device instead of the user's desktop. Profile switching can be performed by user input or by referencing user entries, such as a personal electronic calendar.

[0008] The message prioritization scheme proposed in Patent Document 3, when applied to a vehicle-based human-machine interface, requires each user to laboriously configure it before starting a journey. Even individually specifying the prioritization rules to utilize the basic functions of the complex human-machine interface built into the vehicle requires significant effort on the part of the user before starting a journey. Enabling the full range of functionality requires deep familiarity with the rule-based profile configuration, which is impossible to implement without specialized knowledge of the respective vehicle-based human-machine interface.

[0009] Patent Document 4 discloses a method for mobile terminals that uses appropriate tile design to display and prioritize visual messages on the mobile terminal display based on rules. For this purpose, messages are categorized using predefined rules, and then the messages are displayed by category in different areas of the display. Messages in the same category are displayed in descending order of priority. To assign priorities within a message category, a user behavior analysis is performed. The message sources and the average reaction times of mobile terminal users to messages from each message source are determined. When applying the described message prioritization method to vehicle-based human-machine interfaces, a fundamental problem arises: the wide variety of message types present in vehicle applications makes it difficult to unify their classification. Further problems arise due to the complexity of vehicle human-machine interfaces with multiple interaction channels. Furthermore, the analysis of user behavior, particularly user reaction times to messages from known message sources, required for prioritization cannot be performed for the large number of proactive notifications initiated by the vehicle. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] US Patent Application Publication No. 20210337039 [Patent Document 2] European Patent No. 1287444 [Patent Document 3] European Patent No. 1287444 [Patent Document 4] U.S. Patent No. 9,769,106 Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention is based on the problem of providing an improved notification management method for a vehicle-based human-machine interface, by which the notification to the driver is transmitted in a manner that does not disrupt the driver's attention and is not intrusive, both in terms of time and the selected notification channel. It is intended that the notification management method for proactive notifications, especially in the case of multiple possible notification channels, can be implemented without complex system configuration by the user. Furthermore, a vehicle equipped with such an improved notification management system is also presented. [Means for solving the problem]

[0012] According to the invention, this problem is solved by a notification management method with the features of claim 1. Advantageous embodiments and developments as well as a vehicle equipped with a notification management system for carrying out the notification management method emerge from the dependent claims.

[0013] A comprehensive notification management method for a vehicle-based human-machine interface having at least one notification channel uses a notification management system to forward notifications directed to at least one vehicle occupant and / or at least one vehicle functional module to a notification channel or to withhold each notification according to a priority associated with the notification.

[0014] The notification management method according to the present invention comprises: - The priority associated with the notification is set by a priority number, A notification is selected and forwarded to a notification channel if its priority number exceeds the channel threshold assigned to the notification channel and the priority number has the highest priority number for the respective notification channel; the channel threshold varies over time and is set by the notification management system in a standard operating mode between a minimum and a maximum threshold at predetermined time intervals based on driving data and / or vehicle surroundings data and / or vehicle data and / or human-machine interface status data and / or at least one previous notification transmission and / or vehicle occupant observation data, It is characterized by:

[0015] The notification itself may then be of a purely communicative nature, but may also include control signals that, in addition to controlling information elements such as displays, may also control functional modules of the vehicle, such as functions of a massage device in the vehicle seat, etc. This notification / control of functional modules may be carried out together with a communicative notification, for example as haptic feedback, or may also be carried out without such a notification.

[0016] In this case, according to the present invention, instead of a strict set of rules for prioritization, each notification is assigned a general decimal priority number, which can be understood as a resource, in the sense of a currency that can be "purchased" for transfer to a notification channel. According to the concept of the present invention, a time-varying market value, i.e., a respective channel threshold, is specified for notification transfer, within limits set between a minimum and a maximum threshold. That is, if a notification's priority number is at least above the required threshold and the notification is simultaneously the current "highest bidder" among notifications that meet the threshold condition, the notification can be reliably sent to the notification channel, i.e., the notification becomes active and perceptible to the user via the selected notification channel. Special cases of matching priority numbers can be resolved by requiring additional comparison criteria, such as the time spent in a waiting loop, which can be used as an extra bonus for calculating the final priority number.

[0017] The threshold specification can be updated at predetermined time intervals based on the rate of change of conditions typical for vehicles such as cars, trucks, transporters, and buses, and typical data processing speeds, with practical time intervals in the millisecond range.

[0018] The thresholds for the notification channels may be set using at least one of known criteria, where a first group relates to driving data, vehicle surroundings data, and vehicle data. In one embodiment, the "driving data" criteria considers the current driving speed, whereby, especially for high speed driving, the thresholds are generally increased to prevent notifications that may distract the driver.

[0019] In a further embodiment, vehicle surrounding data is relevant. Here, it can be checked whether the vehicle is driving in congested traffic or on a highway section with narrow lane width, so that the driver must pay special attention and the channel threshold must be set high. Further criteria for the vehicle surrounding area are for driving at night or in bad weather. Here, the time embedding of events is also included in the concept of "vehicle surrounding data". Therefore, the day of the week or the calendar month on which the driving is performed is also understood as vehicle surrounding data.

[0020] In an alternative embodiment, threshold generation takes into account data that can be assigned to the "vehicle data" criteria, including, for example, human-machine interface settings, where a large number of available notification channels, and high frequency, would be intrusive to most drivers, and the number of notifications reaching the vehicle occupants would be reduced by setting a higher channel threshold.

[0021] In a further advantageous embodiment of the channel threshold determination, current state data of the human-machine interface is taken into account: for example, if an acoustic notification channel is activated by the playback of an entertaining audio file such as a podcast, the assigned channel threshold can be increased so that the playback of voice messages is limited to those that are considered to be particularly important and are given a priority number equal to or greater than the increased threshold.

[0022] Embodiments that take into account at least one previous notification transmission are advantageous, for example, to avoid a time-sensitive surge of notifications. Furthermore, the type and duration of at least one previous active notification may be criteria for determining the threshold.

[0023] In a preferred embodiment, vehicle occupant observation data is associated with detecting channel thresholds. This may be, for example, activated notifications, such as proactive notifications related to upcoming traffic congestion. If the driver asks for an alternative route, for example via a voice assistant, the channel threshold of a notification channel dedicated to conveying social media content is significantly increased to prevent interference. Vehicle occupant observation data may also be used to detect the number of people inside the vehicle, thereby increasing the overall channel threshold when multiple occupants are present.

[0024] Furthermore, vehicle occupant observation data can be recorded over time with person-specific assignments. For example, if it is discovered that a driver has the habit of turning on the seat heater above a certain temperature or often turning on the seat massage device after a certain driving time, the thresholds for the notification channels associated with these comfort devices can be lowered for each person, making proactive notifications, i.e., activations that are not initiated by the user, easier to implement.

[0025] In one possible embodiment, the priority number assigned to the notification is static. In an advantageous development, the priority number of the notification is also a dynamic variable, at least until it is transmitted to the notification channel. In this case, the time-varying adjustment of the priority number in the standard operating mode is preferably performed by the notification management system within a predetermined time interval based on the driving data and / or the vehicle surroundings data and / or the vehicle data and / or at least one previous notification transmission by the human-machine interface and / or the observation data of the vehicle occupants and / or the time the notification spends in the waiting loop of the notification channel and / or the duration of the active state of the notification in the notification channel, so that the priority number is set between a minimum priority above the minimum threshold of the notification channel and a maximum priority below the maximum threshold of the notification channel.

[0026] In an advantageous embodiment, a priority number for a notification indicating an apparent decrease in the state of charge of an electric vehicle's traction battery can increase over time when traveling at high speeds. The number can be further increased if vehicle occupant observation data indicates that the driver is not taking appropriate measures to move toward a charging station. In a further preferred embodiment, if vehicle ambient data identifies a visual anomaly on the road surface in temperatures in the freezing range, the priority number for the warning message can be increased. In a further embodiment, the nature of previous notification transmissions can be taken into account. For example, if a push message for sports news is transmitted to a vehicle occupant, the priority number for additional social media content related to the sports field can be lowered to reduce the likelihood of the vehicle occupant receiving repetitive content that may be boring.

[0027] In a further design configuration, it may be desirable to query and dynamically adapt the priority number of a notification after forwarding it to a notification channel. Preferably, the forwarded notification remains active on the notification channel until the notification's priority number falls below the assigned channel threshold. For example, a text message currently displayed on the vehicle display may have a decreasing priority number, whereby the priority number disappears after a certain time for a certain channel threshold. Furthermore, a change in the channel threshold may occur, for example, due to driving conditions that require the driver's full attention and raise the channel threshold. This removes visual cues from the display that may disrupt concentration.

[0028] Proactive notifications can be particularly annoying when they result in a constant stream of information. In a preferred embodiment, the notification management system increases the assigned channel threshold in the next time interval after forwarding a notification to the notification channel. Preferably, further messages are completely suppressed for a predetermined time by setting the assigned channel threshold to a maximum threshold that cannot be exceeded by any possible priority number for a selected time period. Particularly advantageous is an embodiment in which a "cooling-down phase" occurs after activation of the notification channel. Here, for this purpose, a ramp-down of the assigned, initially elevated channel threshold occurs in a predetermined time span after the notification is forwarded.

[0029] A typical human-machine interface in a vehicle has multiple notification channels. According to a preferred embodiment, the notification management method according to the present invention provides a high success rate for selecting the appropriate notification channel for each notification. Preferably, in such a human-machine interface, individual, time-varying channel thresholds are defined for all individual notification channels. Furthermore, if a notification is scheduled simultaneously for at least two notification channels, the notification is assigned a different priority number for each notification channel. A design in which a change in the channel threshold of a first notification channel also changes the channel threshold of at least one second notification channel is particularly advantageous. For example, a first acoustic message requesting the driver to take a break can be present on the first notification channel for the primary audio output and additionally on the second notification channel for the secondary audio output in each waiting loop. The secondary audio output then relates to adding additional information to the primary audio output. In both notification channels, the priority number of the first acoustic message must initially be below the respective channel thresholds so that it is reserved. If a related second acoustic message then arrives on the first notification channel, which acoustic message indicates, for example, a dangerously low state of charge of the traction battery, and whose priority number is above the assigned channel threshold, the primary audio output is activated, and as a result the channel threshold for the secondary audio output is lowered, so that the originally pending notification with the break request also now has a priority number above the channel threshold and is immediately added as a secondary audio message. Thus, the driver is first requested to proceed to a charging station based on the low battery state of charge, and then advised to take a break for driving safety reasons.

[0030] In a further development of the invention, the switching from the standard operating mode to the rule-based mode is performed for at least one notification channel of the human-machine interface based on driving data and / or vehicle surroundings data and / or vehicle data and / or vehicle occupant observation data and / or notifications outside the vehicle. The notification management system then sets a channel threshold to a minimum or maximum threshold for at least one notification channel selected for the rule-based mode. If the maximum threshold is selected, the affected notification channel is completely blocked. Conversely, if the minimum threshold is set, all notifications provided for the affected notification channel are activated.

[0031] In one development, the vehicle according to the invention comprises a notification management system for the man-machine interface, which system is designed to be able to carry out the notification management method according to the invention.

[0032] Further advantageous embodiments of the notification management method are evident from the examples that are explained in more detail below with reference to the figures. [Brief explanation of the drawings]

[0033] [Figure 1] 2 is a time-course diagram of a first embodiment of a notification management method according to the present invention; [Figure 2] 4 is a time course diagram of a second embodiment of a notification management method according to the present invention; [Figure 3] FIG. 3 is a simplified diagram of the notification channels of the second embodiment according to FIG. 2; DETAILED DESCRIPTION OF THE INVENTION

[0034] 1 shows a simplified time-course diagram of a first example of the notification management method according to the invention. At time t1, the occurrence of a proactive notification 4.1 generated by the traction battery of an electric vehicle due to a dangerously low state of charge of the traction battery can be seen in the waiting loop of the diagrammatically symbolized notification channels 1.1, 1.2, 1.3. The notification channel 6.1 is now a message channel on a display that forms part of a man-machine interface, not shown in detail.

[0035] Further notification channels 1.2 and 1.3 are audio channels assigned to the voice assistant. In this case, notification channel 1.3 is configured for primary audio output without any further conditions, while notification channel 1.2 is configured for secondary audio output, which is only performed if it can be added to the previous primary audio output. Therefore, notification channel 1.2 switches to rule-based mode at time t1 and its output is blocked if this additional condition is not met. In this case, the channel threshold 6.2 related to notification forwarding is assumed to be the maximum threshold 3. When notification channel 1.1 is in standard operating mode, channel threshold 6.1 is between the minimum threshold 2 and the maximum threshold 3.

[0036] In the waiting loop of notification channel 1.1, static priority number 5.1 is assigned to notification 4.1, which exceeds channel threshold 6.1 required for forwarding to notification channel 1.1 at time t1, resulting in immediate notification output and a database access to generate the message text corresponding to notification 4.1.

[0037] For notification channel 1.3, notification 4.1 provides priority number 5.3 at time t1, which is below the assigned channel threshold 6.3. Therefore, no primary voice message is initially output. Priority number 5.3 is designed to be dynamic and increases over time, i.e., with increasing duration of extremely low state of charge. Similarly, assigned channel threshold 6.3 also moves dynamically, showing an increase to a higher level over time. This increase occurs due to changes in vehicle surrounding data—in this case, the vehicle is passing through a hazardous area, such as a highway construction site, requiring increased driver attention. Therefore, the notification management system adjusts the channel threshold to a higher value, reducing the information stream to the driver.

[0038] Next, at time t4, priority number 5.3 exceeds the assigned channel threshold 6.3, so the notification management system forwards notification 4.1 to notification channel 1.3, where a database is queried to convert notification 4.1 to a primary voice message. Once the primary voice message is delivered at time t4, the state data of the human-machine interface changes, so notification 4.1 is removed from the waiting loops of notification channels 4.2 and 4.3. Therefore, switching notification channel 1.2 to standard operating mode does not have a perceptible effect due to the output of the primary voice message via notification channel 1.3, because the waiting loop of notification channel 1.3 is already empty.

[0039] In the example shown in Figure 2, there are three notifications 4.2, 4.3, 4.4 in the form of system messages competing for two possible notification channels 1.4, 1.5, which can be seen from the simplified diagram in Figure 3 as being formed by two differently sized areas on the display 7 allocated to the human-machine interface 8.

[0040] As can be seen from FIG. 2, notification channel 1.4 has priority over notification channel 1.5 due to the low channel threshold 6.4. Nevertheless, at different times t1, t2, and t3, none of notifications 4.2, 4.3, and 4.4 in the waiting loops of notification channels 1.4 and 1.5 have sufficient priority numbers 5.4, 5.5, and 5.6 for forwarding. As the dynamics of priority numbers 5.4, 5.5, and 5.6 increase, they approach the two channel thresholds 6.4 and 6.5 over time. In this case, notification 4.2 first exceeds the threshold 6.4 of notification channel 1.4 and is forwarded to notification channel 1.4. This is related to a change in the status data of the human-machine interface 8, which leads to further dynamic adjustments of priority numbers 5.4, 5.5, and 5.6. At this time, the priority number 5.4 assigned to the forwarded notification 4.2 increases by a certain value and then decreases. This measure ensures that notification 4.2 remains active on notification channel 1.4 for a defined time and disappears only when priority number 5.4 falls below channel threshold 6.4. During this time, changes in the status data of the human-machine interface 8 do not lead to further increases in the priority numbers 5.5 and 5.6 of notifications 4.3 and 4.4.

[0041] Activation of the first notification channel 1.4 affects the second notification channel 1.5. It can be seen that when notification 4.2 is presented on the first notification channel 1.4, the channel threshold 6.5 of the second notification channel 1.5 rises at time t4. Thus, the opening of another window on the display 7 is associated with an increased "cost," in which case the increase in channel threshold 6.5 is mitigated over time. However, this decrease in channel threshold 6.5 is not sufficient to prevent reactivation of the priority notification channel 1.4 at t6, where priority number 5.5 now exceeds channel threshold 6.4 and the next notification 4.3 is forwarded for display. Only in the time span from t7 to t8 does notification 4.4 result in an additional activation of notification channel 1.5.

Claims

1. 1. A notification management method for a vehicle-based human-machine interface (8) comprising at least one notification channel (1.1-1.5), wherein a notification management system forwards notifications (4.1-4.4) directed to at least one vehicle occupant and / or at least one vehicle functional module to the notification channel (1.1-1.5) or suspends the notifications (4.1-4.4) depending on a priority associated with the notifications, The priority associated with the notification (4.1 to 4.4) is set by a priority number (5.1 to 5.6), - if the priority number (5.1 to 5.6) of the notification (4.1 to 4.4) exceeds the channel threshold (6.1 to 6.5) assigned to the notification channel (1.1 to 1.5) and the notification has the highest priority number (5.1 to 5.6) for the respective notification channel (1.1 to 1.5), the notification (4.1 to 4.4) is selected and forwarded to the notification channel (1.1 to 1.5); the channel threshold varies over time and is set by the notification management system in a standard operating mode between a minimum threshold (2) and a maximum threshold (3) at predetermined time intervals based on driving data and / or vehicle surroundings data and / or vehicle data and / or human-machine interface status data and / or at least one previous notification transmission and / or vehicle occupant observation data, It is characterized by 1. A method for managing notifications, comprising: a notification management system for managing notifications in a standard operating mode, the notification management system setting, at predetermined time intervals, a priority number of the notifications (4.1-4.4) varying over time at least until they are transmitted to the notification channels (1.1-1.5), to a value lying between a minimum priority above the minimum threshold (2) and a maximum priority below the maximum threshold (3), based on driving data and / or vehicle surroundings data and / or vehicle data and / or at least one previous notification transmission by the human-machine interface and / or observation data of the vehicle occupants and / or dwell times in waiting loops of the notification channels (1.1-1.5) and / or the duration of an active state of a notification (4.1-4.4) in the notification channels (1.1-1.5).

2. the notification management system, after forwarding the notification (4.1 to 4.4) to the notification channel (1.1 to 1.5), increases the assigned channel threshold (6.1 to 6.5) in the next time interval; The notification management method of claim 1 .

3. After the transfer of a notification (4.1 to 4.4) to a notification channel (1.1 to 1.5), the channel thresholds (6.1 to 6.5) assigned to the notification channels (1.1 to 1.5) are set to the maximum threshold (3) for a predetermined time. The notification management method of claim 2 .

4. In a certain time span after the notification (4.1 to 4.4) is transferred, the assigned channel thresholds (6.1 to 6.5) are increased, and then the assigned channel thresholds (6.1 to 6.5) are decreased. The notification management method of claim 2 .

5. a notification (4.1 to 4.4) transferred to a notification channel (1.1 to 1.5) remains active there until the priority number (5.1 to 5.6) of said notification (4.1 to 4.4) falls below the assigned channel threshold (6.1 to 6.5), The notification management method of claim 1 .

6. The notification management system for a human-machine interface having a plurality of notification channels (1.1-1.5) defines separate, time-varying channel thresholds (6.1-6.5) for each of the individual notification channels (1.1-1.5), and notifications (4.1-4.4) are assigned separate priority numbers (5.1-5.6) for at least two of the notification channels (1.1-1.5), The notification management method of claim 1 .

7. A change in the channel threshold of a first notification channel (1.1 to 1.5) also changes the channel threshold (6.1 to 6.5) of at least one second notification channel (1.1 to 1.5), The notification management method of claim 6.

8. A notification management method for a vehicle-based human-machine interface (8) having at least one notification channel (1.1-1.5), wherein the notification management system forwards notifications (4.1-4.4) directed to at least one vehicle occupant and / or at least one vehicle function module to the notification channel (1.1-1.5) or suspends the notifications (4.1-4.4) according to a priority associated with the notifications, The priority associated with the notification (4.1 to 4.4) is set by a priority number (5.1 to 5.6), - if the priority number (5.1 to 5.6) of the notification (4.1 to 4.4) exceeds the channel threshold (6.1 to 6.5) assigned to the notification channel (1.1 to 1.5) and the notification has the highest priority number (5.1 to 5.6) for the respective notification channel (1.1 to 1.5), the notification (4.1 to 4.4) is selected and forwarded to the notification channel (1.1 to 1.5); the channel threshold varies over time and is set by the notification management system in a standard operating mode between a minimum threshold (2) and a maximum threshold (3) at predetermined time intervals based on driving data and / or vehicle surroundings data and / or vehicle data and / or human-machine interface status data and / or at least one previous notification transmission and / or vehicle occupant observation data, It is characterized by the notification management system, after forwarding the notification (4.1-4.4) to the notification channel (1.1-1.5), increases the assigned channel threshold (6.1-6.5) in the next time interval; 10. A notification management method, characterized in that, during a certain time span after the notification (4.1-4.4) is forwarded, the assigned channel thresholds (6.1-6.5) are increased and then decreased.

9. A notification management method for a vehicle-based human-machine interface (8) having at least one notification channel (1.1-1.5), wherein the notification management system forwards notifications (4.1-4.4) directed to at least one vehicle occupant and / or at least one vehicle function module to the notification channel (1.1-1.5) or suspends the notifications (4.1-4.4) according to a priority associated with the notifications, The priority associated with the notification (4.1 to 4.4) is set by a priority number (5.1 to 5.6), - if the priority number (5.1 to 5.6) of the notification (4.1 to 4.4) exceeds the channel threshold (6.1 to 6.5) assigned to the notification channel (1.1 to 1.5) and the notification has the highest priority number (5.1 to 5.6) for the respective notification channel (1.1 to 1.5), the notification (4.1 to 4.4) is selected and forwarded to the notification channel (1.1 to 1.5); the channel threshold varies over time and is set by the notification management system in a standard operating mode between a minimum threshold (2) and a maximum threshold (3) at predetermined time intervals based on driving data and / or vehicle surroundings data and / or vehicle data and / or human-machine interface status data and / or at least one previous notification transmission and / or vehicle occupant observation data, It is characterized by The notification management system for a human-machine interface having a plurality of notification channels (1.1-1.5) is characterized in that it defines separate, time-varying channel thresholds (6.1-6.5) for each of the individual notification channels (1.1-1.5), and that notifications (4.1-4.4) are assigned separate priority numbers (5.1-5.6) for at least two of the notification channels (1.1-1.5), A method for managing notifications, characterized in that a change in the channel threshold of a first notification channel (1.1-1.5) also changes the channel threshold (6.1-6.5) of at least one second notification channel (1.1-1.5).

10. In a vehicle equipped with a notification management system for a human-machine interface, A vehicle characterized in that the notification management system is executable according to the notification management method according to any one of claims 1 to 9.

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