Method and device for automatically decelerating a vehicle at a signaling unit

Abstract

The invention relates to a device for automatically decelerating a motor vehicle as the motor vehicle approaches a signaling unit. The device is designed to automatically decelerate the motor vehicle as the motor vehicle approaches a signaling unit which lies ahead in the travel direction of the motor vehicle. The device is also designed to interrupt, in response to a first user input, the automatic deceleration as the motor vehicle approaches the signaling unit (so that the automatic longitudinal guidance of the motor vehicle is continued) and, in response to a subsequent second user input, restart the automatic deceleration as the motor vehicle approaches the signaling unit.

Description

[0001] Method and device for automatically decelerating a vehicle at a signaling unit

[0002] The invention relates to a device and a corresponding method which enable automatic deceleration of a motor vehicle at a signalling unit, in particular at a traffic light system.

[0003] A vehicle can have one or more driving functions that support the driver of the vehicle in guiding the vehicle, in particular in longitudinal and / or lateral guidance. An example driving function to support the longitudinal guidance of a vehicle is the Adaptive Cruise Control (ACC) function, which can be used to guide the vehicle longitudinally at a specified set or target speed and / or at a specified set or target distance from a vehicle driving in front of the vehicle. The driving function can also be used in conjunction with a signaling unit (e.g. with a traffic light or a traffic sign) at a traffic junction (e.g. at an intersection) in order to effect automated longitudinal guidance, such as automated deceleration, at the signaling unit.This document deals with the technical task of safely increasing the comfort of a driving function for the automated longitudinal guidance of a vehicle at a signaling unit.

[0004] The problem is solved by each of the independent claims. Advantageous embodiments are described, among other things, in the dependent claims. It should be noted that additional features of a patent claim dependent on an independent patent claim can form a separate invention, independent of the combination of all features of the independent patent claim, without the features of the independent patent claim or only in combination with a subset of the features of the independent patent claim, which invention can be made the subject of an independent claim, a divisional application, or a subsequent application. This applies equally to technical teachings described in the description, which can form an invention independent of the features of the independent patent claims.

[0005] According to one aspect, a device for automatically decelerating a motor vehicle upon approaching a signaling unit (e.g., a traffic light or a traffic sign, such as a stop sign) is described. The device can be configured to automatically guide the motor vehicle longitudinally, in particular using a distance and / or speed controller. The vehicle's driving speed can be set, in particular regulated, to a set speed.

[0006] The device is configured to automatically decelerate the motor vehicle when approaching a signaling unit located ahead in the direction of travel of the motor vehicle. The signaling unit located ahead in the direction of travel of the motor vehicle can be detected while the motor vehicle is being automatically guided longitudinally. The signaling unit can be recognized based on sensor data from one or more environmental sensors (e.g., one or more cameras) of the vehicle. The automatic deceleration of the motor vehicle can be configured to decelerate the motor vehicle such that the motor vehicle comes to a stop (exactly) at the stop position of the signaling unit.

[0007] The device can be configured to determine, based on a detected driving progress, that the (detected) signaling unit ahead is to be taken into account in the automated longitudinal guidance of the motor vehicle (e.g., because the signaling unit has a red light and / or because the signaling unit includes a stop sign). The detected driving progress can correspond to a time and / or a position when approaching the signaling unit (i.e., when driving toward the signaling unit). The vehicle can have the set speed at the detected driving progress.In response to the determination that the (detected) signaling unit ahead is to be taken into account in the automated longitudinal guidance of the motor vehicle, the automatic deceleration of the motor vehicle can be initiated (automatically, without prior confirmation by the vehicle driver) based on the detected driving progress. Furthermore, an offer to cancel the automatic deceleration can be issued via the motor vehicle's user interface.

[0008] The device can be configured to determine (based on the environmental data) the signaling state of the signaling unit located ahead in the direction of travel of the motor vehicle. The automatic deceleration of the motor vehicle can be effected depending on the signaling state of the signaling unit, in particular such that

[0009] • the automatic deceleration is effected when the signalling state of the signalling unit indicates (e.g. by means of a red light signal) that the motor vehicle must stop at a stop position of the signalling unit; and / or

[0010] • the automatic deceleration is not effected and / or that the motor vehicle is guided past the signalling unit with automated longitudinal guidance if the signalling state of the signalling unit indicates (e.g. by a green light signal) that the motor vehicle may pass the stop position of the signalling unit.

[0011] The device is configured to cancel the automatic delay upon approaching the signaling unit in response to a first user input. The first user input can be detected in response to the issuance of the offer to cancel the automatic delay.

[0012] The device can be configured to automatically guide the motor vehicle longitudinally in response to the first user input, in particular using the distance and / or speed controller, e.g. with the aim of increasing the driving speed of the motor vehicle to the set speed and / or with the aim of guiding the motor vehicle past the signaling unit.

[0013] The device is further configured to resume the automatic delay upon approaching the signaling unit in response to a subsequent second user input.

[0014] The device can be configured to issue an offer to resume automatic deceleration via a user interface of the motor vehicle in response to the cancellation of automatic deceleration upon approaching the signaling unit. The second user input can be detected subsequent to the issue of the offer to resume automatic deceleration. The resumed automatic deceleration of the motor vehicle can be configured to decelerate the motor vehicle such that the motor vehicle comes to a stop (exactly) at a stop position of the signaling unit.

[0015] A device for automated longitudinal guidance of a vehicle at a signaling unit is thus described, which allows the driver of the vehicle to conveniently resume a previously aborted automatic deceleration when approaching a signaling unit. This further increases the convenience and safety of automated longitudinal guidance at a signaling unit.

[0016] The device can be configured to issue the offer to resume automatic deceleration starting from a first intermediate travel progress at which the automatic deceleration was aborted. The first intermediate travel progress can correspond to a time and / or a position upon approaching the signaling unit.

[0017] Alternatively or additionally, the device can be configured to issue the offer to resume automatic deceleration for a specific time limit. The time-based and / or distance-based length of the offer interval can depend on the vehicle's speed and / or the vehicle's distance from the stop position of the signaling unit (at the first intermediate travel progress). For example, it can be determined from which last possible intermediate travel progress the automatic deceleration must be resumed at the latest in order to still effect an automatic deceleration during which the vehicle is decelerated to a standstill until it reaches the stop position of the signaling unit. The offer interval can extend (from the first intermediate travel progress) to the last possible intermediate travel progress (and end there).The offer to resume automatic deceleration can be disabled after the offer interval has expired, so that the automatic deceleration can no longer be resumed by user input after the offer interval has expired. This further increases the safety of automated longitudinal guidance at a signaling unit.

[0018] The automatic deceleration may be resumed at a second intermediate travel progress, the second intermediate travel progress corresponding to a time and / or position when approaching the signalling unit.

[0019] The device can be configured to determine speed information relating to the driving speed of the motor vehicle at the second intermediate travel stage and / or to determine distance information relating to the distance of the motor vehicle at the second intermediate travel stage from the stop position of the signaling unit. The deceleration value of the automatic deceleration of the motor vehicle after resumption can then be determined particularly precisely as a function of the speed information and / or as a function of the distance information. This allows the comfort of the driving function to be further increased.

[0020] The device can be configured to issue an offer to cancel the automatic deceleration again via the motor vehicle's user interface in response to the resumption of automatic deceleration upon approaching the signaling unit. This allows the driver of the vehicle to cancel the resumed automatic deceleration again. A renewed cancellation (in response to a new user input) can then lead to automated longitudinal guidance of the vehicle, e.g., with the goal of driving the vehicle past the signaling unit (using the distance and / or speed controller).

[0021] After the automated deceleration is canceled again, an offer to resume automatic deceleration may be issued (if automatic deceleration is still possible). This can further increase the comfort and / or safety of the driving function.

[0022] The device can be configured to detect the second user input (for resuming automatic deceleration) at the second intermediate travel progress. The device can also be configured to check (particularly taking into account the distance information and / or the speed information) whether the motor vehicle can be automatically decelerated from the second intermediate travel progress such that the motor vehicle comes to a stop (exactly) at a stop position of the signaling unit. A maximum permissible deceleration value can also be taken into account.

[0023] Automatic deceleration upon approaching the signaling unit can be resumed if, and in particular only if, it has been determined that the motor vehicle can be automatically decelerated from the second intermediate travel progress such that the motor vehicle comes to a stop at the stop position of the signaling unit. This allows for particularly safe operation of the automated longitudinal guidance at a signaling unit.

[0024] According to a further aspect, a (road) motor vehicle (in particular a passenger car or a truck or a bus or a motorcycle) is described which comprises the device described in this document. According to a further aspect, a method for automatically decelerating a motor vehicle upon approaching a signaling unit is described. The method comprises causing an automatic deceleration of the motor vehicle upon approaching a signaling unit located ahead in the direction of travel of the motor vehicle. Furthermore, the method comprises aborting the automatic deceleration upon approaching the signaling unit in response to a first user input, and resuming the automatic deceleration upon approaching the signaling unit in response to a subsequent second user input.

[0025] According to another aspect, a software (SW) program is described. The SW program can be configured to be executed on a processor (e.g., on a vehicle control unit) and thereby to carry out the method described in this document.

[0026] According to a further aspect, a storage medium is described. The storage medium can comprise a software program configured to be executed on a processor and thereby to carry out the method described in this document.

[0027] It should be noted that the methods, devices, and systems described in this document can be used both alone and in combination with other methods, devices, and systems described in this document. Furthermore, any aspects of the methods, devices, and systems described in this document can be combined in a variety of ways. In particular, the features of the claims can be combined in a variety of ways. Furthermore, features listed in parentheses are to be understood as optional features.

[0028] The invention will be described in more detail below using exemplary embodiments. Figure 1 shows exemplary components of a vehicle;

[0029] Figure 2 shows an exemplary approach to a signaling unit;

[0030] Figure 3a shows an exemplary curve of the driving speed of a vehicle when approaching a signalling unit;

[0031] Figure 3b shows an example output of an offer to cancel an automatic delay;

[0032] Figure 3c shows an example output of an offer to resume an automatic delay; and

[0033] Figure 4 is a flowchart of an exemplary method for automatically decelerating a vehicle when approaching a signaling unit.

[0034] As stated at the outset, this document deals with increasing the comfort and / or safety of a driving function of a vehicle in connection with a signalling unit (e.g. a traffic light and / or a traffic sign) on the roadway travelled by the vehicle.

[0035] Fig. 1 shows exemplary components of a vehicle 100. The vehicle 100 includes one or more environmental sensors 102 (e.g., one or more image cameras, one or more radar sensors, one or more lidar sensors, one or more ultrasonic sensors, etc.) configured to acquire environmental data relating to the environment of the vehicle 100 (in particular, relating to the environment in front of the vehicle 100 in the direction of travel). Furthermore, the vehicle 100 includes one or more actuators 103 configured to influence the longitudinal and / or lateral guidance of the vehicle 100. Exemplary actuators 102 include a braking system, a drive motor, a steering system, etc.

[0036] The (control) device 101 of the vehicle 100 can be configured to provide a driving function, in particular a driver assistance function, based on the sensor data from the one or more environmental sensors 102 (i.e., based on the environmental data). For example, an obstacle on the travel trajectory of the vehicle 100 can be detected based on the sensor data. The device 101 can then control one or more actuators 103 (e.g., the braking system) to automatically decelerate the vehicle 100 and thereby prevent a collision of the vehicle 100 with the obstacle.

[0037] Within the scope of the automated longitudinal guidance of a vehicle 100, in addition to a leading vehicle, one or more signaling units on the roadway or street traveled by the vehicle 100 can be taken into account.

[0038] In particular, the signaling state of a signaling unit can be taken into account, so that the vehicle 100 automatically decelerates to the stop line of the traffic light at a red traffic light relevant for its own (planned) direction of travel and / or accelerates (if necessary again) at a green traffic light.

[0039] The device 101 of the vehicle 100 can be configured to provide automated longitudinal guidance of the vehicle 100 in urban areas. This driving function can be referred to as an Urban Cruise Control (UCC) driving function. The driving function can be provided in an automatic mode (aUCC) and / or in a manual mode (mUCC). The driver can optionally be enabled to specify via the user interface 107 of the vehicle 100 whether the driving function should be operated in automatic or manual mode.

[0040] The device 101 of the vehicle 100 can be configured to detect a signaling unit 200 located ahead on the route of the vehicle 100 based on the environmental data of the one or more environmental sensors 102 and / or based on map data relating to the road network traveled by the vehicle 100 (in conjunction with the position data of a position sensor 106 of the vehicle 100) (see Fig. 2). In manual mode of the UCC driving function, a suggestion or a request can be output via the user interface 107 as to whether or not the signaling unit 200 should be taken into account in the automated longitudinal guidance of the vehicle 100. The driver of the vehicle 100 can then accept, reject, or ignore the suggestion, e.g., by actuating a control element of the user interface 107. On the other hand, in the automatic mode of the UCC driving function, the detected signaling unit 200 may be automatically (iewithout requiring feedback from the driver) in the automated longitudinal guidance of the vehicle 100.

[0041] If the detected signaling unit 200 is taken into account in the automated longitudinal guidance of the vehicle 100, an automatic deceleration can be initiated (depending on the (signaling) state of the signaling unit 200) in order to automatically bring the vehicle 100 to a standstill (e.g., at a red traffic light). Furthermore, an automatic start of the vehicle 100 can be initiated (e.g., after a change in the (signaling) state of the signaling unit 200, such as after a change to green). The vehicle 100 can then be automatically accelerated back to the set speed (taking into account a specified minimum or set distance from a vehicle in front).

[0042] The UCC driving function thus enables the driver of a vehicle 100 to use the ACC driving function even on a road with one or more signaling units 200 (without having to deactivate and reactivate the ACC function on the individual signaling units 200).

[0043] Fig. 2 shows an exemplary driving situation in which the vehicle 100 detects a signaling unit 200 ahead at a detection driving progress (e.g., at a specific detection position and / or at a specific detection time). The signaling unit 200 may have a light signal 201. The device 101 may be configured to determine the signaling state of the light signal 201 (e.g., based on the surrounding data). At the detection driving progress, the vehicle 100 has a specific distance 211 from the stop position of the signaling unit 200 and a specific driving speed 212 (e.g., the set speed).

[0044] If it is determined that the signaling unit 200 is to be taken into account in the automated longitudinal guidance of the vehicle 100, and that the signaling unit 200 indicates that the vehicle 100 must stop at the stop position of the signaling unit 200, an automated deceleration of the vehicle 100 can be initiated (starting from the detected driving progress), which aims to decelerate the vehicle 100 to a standstill. The automatic deceleration can be initiated automatically without the automatic deceleration having to be confirmed beforehand by the driver. Fig. 3a shows an exemplary curve 312 of the driving speed 212 of the vehicle 100 as it approaches the stop position of the signaling unit 200 (as a function of the driving progress 300 of the vehicle 100, where the driving progress 300 can correspond to the position and / or the time). The stop position of the signaling unit 200 corresponds to the stop driving step 305.The driving speed 212 is reduced by the automatic deceleration starting from the set speed 311 (at the detection driving progress 301) to a standstill (at the holding driving progress 305).

[0045] The automatic deceleration of the vehicle 100 can be effected automatically (without prior confirmation by the driver) as soon as a signaling unit 200 is detected, in particular as soon as a signaling unit 200 is detected which has a signaling state (e.g. a red light signal 201) indicating that the vehicle 100 has to stop at the stop position of the signaling unit 200.

[0046] An offer to cancel the automatic deceleration can be issued to the user, in particular the driver, of the vehicle 100 via the user interface 107, as shown by way of example in Fig. 3b. The output 350 can include the offer 351 to cancel the automatic deceleration and / or a request 352 to make a user input. The output 350 can be output, for example, on a (touch-sensitive) screen of the user interface 107. The offer 351 to cancel the automatic deceleration can be issued (based on the detected driving progress 301) for a specific first (time- and / or distance-based) offer interval. After the first offer interval has expired, the offer 351 to cancel the automatic deceleration can be inhibited if necessary (so that cancellation of the automatic deceleration may no longer be possible).

[0047] In the example shown in Fig. 3a, the driver of vehicle 100 accepts the offer 351 to abort the automatic deceleration at a first intermediate driving progress 302. This results in the automatic deceleration being aborted. Furthermore, this can lead to the distance and / or speed control of vehicle 100 being reactivated, e.g., with the aim of setting the driving speed 212 of vehicle 100 to the set speed 311. This can cause the driving speed 212 of vehicle 100 to increase again (as shown by way of example by curve 322 in Fig. 3a). The vehicle 100 can then be guided past the signaling unit 200 using automated longitudinal guidance, in particular using the distance and / or speed controller.

[0048] After the automatic deceleration has been aborted (i.e., from the first intermediate driving progress 203), a second output 360 can be output to the user, in particular to the driver, of the vehicle 100 (see Fig. 3c). The second output 360 can include an offer 361 to resume the automatic deceleration. Furthermore, the output 360 can include a request 362 for user input regarding the offer 361. The second output 360 can be output (starting from the first intermediate driving progress 302) for a second (time- and / or distance-based) offer interval. After the second offer interval has expired, the offer 361 to resume the automatic deceleration can be inhibited if necessary (so that resumption of the automatic deceleration may no longer be possible).

[0049] In the example illustrated in Fig. 3a, the driver of vehicle 100 accepts the offer 361 to resume automatic deceleration at a second intermediate travel progress 304. This results in automatic deceleration being resumed at the second intermediate travel progress 304, starting from the travel speed 212 of vehicle 100, in particular with the aim of automatically decelerating the vehicle to a standstill, so that vehicle 100 comes to a stop (exactly) at the stop travel progress 305 (i.e., at the stop position of signaling unit 200). This is illustrated by way of example in Fig. 3b by curve 323.

[0050] A return option for traffic light control can thus be provided to increase the convenience and safety of automated longitudinal guidance at a signaling unit 200. For this purpose, the previously confirmed continuation of motor vehicle 100 at the signaling unit 200 (i.e., the cancellation of the automatic deceleration) can be canceled for a specific offer interval (e.g., 2-5 seconds) by pressing a control element (e.g., a button). Furthermore, traffic light control can be automatically resumed.

[0051] Fig. 4 shows a flow diagram of a (possibly computer-implemented) method 400 for automatically decelerating a motor vehicle 100 when approaching a signaling unit 200. The motor vehicle 100 can, for example, be guided automatically along a roadway and can approach the signaling unit 200 ahead. The signaling unit 200 can be detected on the basis of the environmental data from one or more environmental sensors 102 of the vehicle 100. The method 400 comprises causing 401 an automatic deceleration of the motor vehicle 100 when approaching a signaling unit 200 ahead in the direction of travel of the motor vehicle 100. The automatic deceleration can be designed to decelerate the motor vehicle 100 in such a way that the vehicle 100 comes to a stop (exactly) when it reaches the stop position of the signaling unit 200. The automatic deceleration can, if necessary,be effected (without requiring user input) as soon as it is detected that the signaling unit 200 has a signaling state (e.g., a red light signal 201) indicating that the vehicle 100 must stop.

[0052] Furthermore, the method 400 includes canceling 402 the automatic deceleration upon approaching the signaling unit 200 in response to a first user input. The first user input may be in response to the output 350 of a first offer 351 to cancel the automatic deceleration. The first user input may include the actuation of a control element (e.g., a button) of the user interface 107 and / or the actuation of the accelerator pedal of the vehicle 100.

[0053] Canceling the automatic deceleration upon approaching the signaling unit 200 can result in the vehicle 100 being automatically guided longitudinally again using the distance and / or speed controller. This can result in the vehicle 100 being automatically accelerated (e.g., until the set speed 311 is reached).

[0054] During and / or after the automatic deceleration is aborted, an offer 361 to resume automatic deceleration may be issued upon approaching the signaling unit 200. The method 400 further includes resuming 403 the automatic deceleration upon approaching the signaling unit 200 in response to a subsequent second user input. The second user input may have been made in response to the issuance of the offer 361 to resume automatic deceleration. The second user input may include actuating a control element (e.g., a button) of the user interface 107 and / or actuating the brake pedal of the vehicle 100.

[0055] The measures described in this document can safely increase the comfort of a driving function for automated longitudinal guidance on a signaling unit 200.

[0056] The present invention is not limited to the embodiments shown. In particular, it should be noted that the description and the figures only exemplify the principle of the proposed methods, devices and

[0057] systems are intended to illustrate.

Claims

Claims 1) Device (101) for automatically decelerating a motor vehicle (100) when approaching a signaling unit (200); wherein the device (101) is configured - to effect an automatic deceleration of the motor vehicle (100) when approaching a signalling unit (200) located ahead in the direction of travel of the motor vehicle (100); - in response to a first user input, to cancel the automatic delay upon approaching the signalling unit (200); and - in response to a subsequent second user input, to resume the automatic deceleration upon approaching the signalling unit (200). 2) Device (101) according to claim 1, wherein the device (101) is arranged - in response to the termination of the automatic deceleration upon approaching the signalling unit (200), to issue an offer (261) to resume the automatic deceleration via a user interface (107) of the motor vehicle (100); and - capture the second user input subsequent to issuing the offer (261) to resume the automatic delay. 3) Device (101) according to claim 2, wherein the device (101) is arranged - to issue the offer (261) for resuming the automatic deceleration from a first intermediate driving progress (302) at which the automatic deceleration was aborted; wherein the first intermediate driving progress (302) corresponds to a point in time and / or a position when approaching the signaling unit (200); and / or - to issue the offer (261) to resume the automatic delay for a limited period of time for an offer interval; and / or - to prevent the offer (261) to resume the automatic delay after the expiry of the offer interval, so that the automatic delay can no longer be resumed subsequently by a user input. 4) Device (101) according to one of the preceding claims, wherein the device (101) is arranged - to determine from a detection driving progress (301) that the signaling unit (200) located ahead is to be taken into account in an automated longitudinal guidance of the motor vehicle (100); wherein the detection driving progress (302) corresponds to a time and / or a position when approaching the signaling unit (200); and - in response to the determination, to effect the automatic deceleration of the motor vehicle (100) from the detection driving progress (301). 5) Device (101) according to one of the preceding claims, wherein the automatic deceleration of the motor vehicle (100) is designed to decelerate the motor vehicle (100) such that the motor vehicle (100) comes to a stop at a stop position of the signaling unit (200). 6) Device (101) according to one of the preceding claims, wherein the device (101) is configured, in response to the first user input, to control the motor vehicle (100), in particular based on a distance and / or Speed ​​controller, automated longitudinal guidance, in particular with the aim of - to increase a driving speed (212) of the motor vehicle (100) to a set speed (311); and / or - to guide the motor vehicle (100) past the signalling unit (200). 7) Device (101) according to one of the preceding claims, wherein the device (101) is arranged - to resume the automatic deceleration at a second intermediate travel progress (304); wherein the second intermediate travel progress (304) corresponds to a time and / or a position when approaching the signaling unit (200); - to determine speed information relating to a driving speed (212) of the motor vehicle (100) at the second intermediate driving progress (304); - to determine distance information relating to a distance (211) of the motor vehicle (100) at the second intermediate travel progress (304) from a stop position of the signaling unit (200); and - to determine a deceleration value of the automatic deceleration of the motor vehicle (100) after resumption of the automatic deceleration as a function of the speed information and / or the distance information. 8) Device (101) according to one of the preceding claims, wherein the device (101) is arranged - to detect the second user input at a second intermediate driving progress (304); wherein the second intermediate driving progress (304) corresponds to a time and / or a position when approaching the signaling unit (200); - to check whether the motor vehicle (100) can be automatically decelerated starting from the second intermediate driving progress (304) in such a way that the motor vehicle (100) comes to a stop at a stop position of the signalling unit (200); and - to resume the automatic deceleration when approaching the signalling unit (200) if, in particular only if, it has been determined that the motor vehicle (100) can be automatically decelerated starting from the second intermediate driving progress (304) in such a way that the motor vehicle (100) comes to a stop at the stop position of the signalling unit (200). 9) Device (101) according to one of the preceding claims, wherein the device (101) is arranged - to automatically guide the motor vehicle (100) longitudinally, in particular by means of a distance and / or speed controller; - during the automated longitudinal guidance of the motor vehicle (100), to detect the signalling unit (200) located ahead in the direction of travel of the motor vehicle (100); and - in response to the detection, - to effect automatic deceleration of the motor vehicle (100) within the framework of automated longitudinal guidance; and - to issue an offer (251) to abort the automatic deceleration via a user interface (107) of the motor vehicle (100). 10) Device (101) according to one of the preceding claims, wherein the device (101) is arranged - to determine a signalling state of the signalling unit (200) located ahead in the direction of travel of the motor vehicle (100); - to effect the automatic deceleration of the motor vehicle (100) as a function of the signaling state of the signaling unit (200), in particular in such a way that - the automatic deceleration is effected when the signaling state of the signaling unit (200) indicates that the motor vehicle (100) has to stop at a stop position of the signaling unit (200); and / or - the automatic deceleration is not effected and / or that the motor vehicle (100) is guided past the signaling unit (200) with automated longitudinal guidance if the signaling state of the signaling unit (200) indicates that the motor vehicle (100) may drive past the stop position of the signaling unit (200). 11) Device (101) according to one of the preceding claims, wherein the device (101) is configured, in response to the resumption of the automatic deceleration upon approaching the signaling unit (200), to issue an offer (251) for again aborting the automatic deceleration via a user interface (107) of the motor vehicle (100). 12) Method (400) for automatically decelerating a motor vehicle (100) when approaching a signaling unit (200); the method (400) comprising - causing (401) an automatic deceleration of the motor vehicle (100) when approaching a signalling unit (200) located ahead in the direction of travel of the motor vehicle (100); - canceling (402) the automatic delay upon approaching the signaling unit (200) in response to a first user input; and - resuming (403) the automatic deceleration upon approaching the signaling unit (200) in response to a subsequent second user input.

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