Method for controlling a motor vehicle and control device for a motor vehicle

Abstract

The present disclosure relates to a method for controlling a motor vehicle (100). Based on at least one signal from a vehicle network (50), a continuous check is carried out to determine whether a specific traffic scenario is present or imminent. If it is determined that the specific traffic scenario is present or imminent and if a control signal (S1) is simultaneously received from an operating element (20), a side window (111) on a driver's door (110) of the motor vehicle (100) is controlled to fully open automatically and an exterior mirror (112) on the driver's door (110) is controlled to automatically fold in. The present disclosure further relates to a corresponding control unit, a motor vehicle, and a computer program.

Description

Technical FieldThe invention relates to a method for controlling a motor vehicle and control device for a motor vehicle.Prior ArtDE 10 2021 113 017 A1 discloses an assistance system and assistance method for a vehicle, having a detection module which is configured to detect a situation or an imminent situation and actuate a window lifter for automatically opening a window depending on the situation. An automatic opening of the window should take place when the detected situation is typical for opening a window, for example when a ticket machine reaches a closed gate.Brief Description of the InventionAgainst this background, the object of the invention is to provide an improved assistance function for assisting a driver at a toll or ticket station.Accordingly, a method according to the main claim and a device, a computer program and a computer program product according to the dependent claims are proposed. Further embodiments are the subject matter of the respective dependent claims.According to a first aspect of the invention, the object is achieved by a method for controlling a motor vehicle. Based on at least one signal from a vehicle network, it is continuously checked whether a specific traffic scenario is present or imminent. If it is determined that the specific traffic scenario is present or imminent and a control signal is simultaneously received from an operating element, a side window on a driver door of the motor vehicle is controlled for complete automatic opening and an outer mirror on the driver door is controlled for automatic folding.With the present invention, an actuation of an automatic window opening is combined with the actuation of a folding function of the exterior mirror on the driver side to form an "extended toll function". The folded-in exterior mirror allows a driver to manway his motor vehicle closer to a terminal or to an output location, so that parking tickets or toll tickets can be reached more easily and payments can be made more easily. With the combined control of the window opening and exterior mirror folding function, the operation of the motor vehicle in a toll or ticket scenario is simplified for the driver. In order to ensure a reasonable function of a combined control by a common operating element or to avoid a false triggering, the extended toll function is only enabled if a corresponding traffic scenario, i.e. a toll or ticket scenario, is present and has been detected.If a driver does not wish to automatically fold the exterior mirror in a combined manner, the driver can be actuated for automatic opening by means of a second operating element which is associated with a window lifter of the side window.According to a development of the method, the side window on the driver door can be controlled for automatic closing and the exterior mirror on the driver door can be controlled for automatic folding out again as soon as it is determined on the basis of at least one signal from the vehicle network that the specific traffic scenario is no longer pending or has ended.By automatically closing the side window and folding out the exterior mirror again after completion of a payment transaction or ticket removal, vehicle operation is further simplified, since the driver can concentrate on the longitudinal and transverse guidance of his motor vehicle and does not need to take care of manual control of the window and exterior mirror. A termination or no longer persistence of a toll or ticket scenario can then be concluded if the motor vehicle has been started again.In particular, it can be provided that the side windows on the driver door for automatic closing and the exterior mirror on the driver door for automatic folding out again are controlled when a signal for a current speed of the motor vehicle exceeds a limit speed (threshold value).According to a development of the method, if a control signal is received from the operating element and at the same time no presence or imminent presence of the specific traffic scenario is detected, the outer mirror on the driver's door and an outer mirror on a front passenger's door can be controlled for automatic folding-in.The development provides a dual assignment of an operating element which is dependent on a traffic scenario and further simplifies operation of the motor vehicle for a driver. The control element can be assigned primarily for controlling the function of synchronously folding both exterior mirrors of the motor vehicle. That is, in all traffic scenarios that do not correspond to the particular traffic scenario, the control element provides its primary or accustomed function. Thus, during travel through confined environments, the exterior mirrors can be folded in and out again by means of actuation of the operating element, while the side window is not influenced.According to a development of the method, the signals in the vehicle network can comprise a temporal sequence of speed signals for a current speed of the motor vehicle, wherein a presence or a pre-existence of the specific traffic scenario is determined when a speed time profile characteristic of the specific traffic scenario has been detected in the received signals.In a simple embodiment of the refinement, the characteristic speed time profile can be defined by dropping below a threshold value for the speed of the motor vehicle. Alternatively, it can be provided to train a detection of speed time characteristics that are characteristic for the specific traffic scenario by means of machine learning. This makes it possible to distinguish more accurately between toll or ticket scenarios and other traffic scenarios with a low vehicle speed, if appropriate. In addition, for a detection of the presence of the specific traffic scenario, steering signal time profiles can also be used, which can also be trained by means of machine learning.According to a development of the method, the signals can comprise current location information, wherein a presence or a pre-existence of the specific traffic scenario is determined if it has been detected on the basis of the location information that the motor vehicle is located at a location which is characteristic of an occurrence of the specific traffic scenario.According to the principle of geofencing, it can be established by means of a navigation device whether a current location position of the motor vehicle is within a specific local area in which the specific traffic scenario usually occurs. For example, toll spots, parking garages, drive-in-counter (autoswitch), etc., may be recorded in a digital road map that correlates with the presence of a toll scenario. If the motor vehicle is in such an area, assigned location information can be transmitted via the vehicle network.According to a development of the method, the signals can comprise object information from a camera-based image processing system, wherein a presence or a predominance of the specific traffic scenario is determined if object information characteristic of the specific traffic scenario has been detected in the signals.A camera-based image or object recognition of a vehicle environment sensor system can be trained, for example, to recognize toll stations or ticket stations.According to a second aspect of the invention, the object is achieved by a control device for a motor vehicle, which comprises a control logic, an interface for a vehicle network, a signal input for an operating element, a first output for an electric window lifter of a side window of a driver door and a second output for a drive for folding an exterior mirror of the driver door. The control logic is designed to continuously receive signals from the vehicle network via the interface and to continuously check a condition based on signals whether a specific traffic scenario is present or imminent. The control logic is further configured when the condition is fulfilled, based on a received control signal from the operating element, to output via the first output a first control signal for completely automatically opening the side window of the driver's door and to output via the second output a second control signal for automatically folding the exterior mirror of the driver's door.According to a development of the control unit, the control logic can be designed, if the condition is not fulfilled, to output a second control signal for automatically folding the exterior mirror of the driver's door in or out via the second output on the basis of a received control signal from the operating element.In addition, the control logic can be designed to simultaneously output a further control signal via the interface for automatically folding an exterior mirror on and / or folding it out at a front passenger door.According to a third aspect of the invention, the object is achieved by a motor vehicle having a control device according to the second aspect of the invention.According to a further aspect of the invention, the object is achieved by a computer program which, when it is executed on a computing unit within a control unit, instructs the respective computing unit to execute the method.According to a further aspect of the invention, the object can be achieved by a computer program product having a program code for carrying out the method, which program product is stored on a medium readable by a computer.BRIEF DESCRIPTION OF THE DRAWING FIGURESFurther features and details are evident from the following description, in which--possibly with reference to the drawing--at least one exemplary embodiment is described in detail. Features described and / or depicted form the subject matter alone or in any meaningful combination, optionally also independently of the claims, and can in particular additionally also be the subject matter of one or more separate application / s. Identical, similar and / or functionally identical parts are provided with the same reference numerals. The following are shown: FIG. 1 shows a motor vehicle having a control unit; FIG. 2 shows a method sequence for switching between a normal operating mode and a toll operating mode; FIG. 3 shows a method sequence for automatically retracting side windows and exterior mirrors on a driver door.DESCRIPTION OF THE EMBODIMENTSFIG. 1 shows a motor vehicle 100 having a control unit 10 which comprises a control logic 11 according to the invention. The control device 10 can be arranged, for example, as a door control device in a driver's door 110 of the motor vehicle 100. For communication with a vehicle network 50 of the motor vehicle 100, the control device 10 has an interface 12 (e.g. a CAN interface, controller area network), via which bidirectional data exchange of control and measurement signals can take place. Within the driver door 110, the control device 10 is connected to a window lifter drive 31 of an electric window lifter 41 and to a folding drive 32 of a folding mechanism 42 for folding an exterior mirror 112 in and out. A first output signal A 1 for opening and / or closing a side window 111 can be output to the window lifter drive 31 via a first output 14. A second output signal A 2 for folding the exterior mirror 112 in and / or out can accordingly be output to the folding drive 32 via a second output 15. Furthermore, the control device 10 has a signal input 13 via which a first control signal S 1 can be received by an operating element 20.The motor vehicle 100 has a body control module 53 (BCM) and is furthermore equipped with a camera system 52 and a satellite-assisted navigation system 51. Via the BCM 53, different speed signals v for a current speed of the motor vehicle 100 can be provided and continuously communicated via the vehicle network 50.Camera system 52 is designed to visually capture a front environment of motor vehicle 100 and to recognize objects in a direction of travel by means of image processing. The camera system 52 is further configured to communicate object information OBL of objects detected in the camera image via the vehicle network 50. Thus, for example, current object lists with classified objects and their positions in the front environment of the vehicle can be sent continuously.It can be provided that the corresponding object recognition algorithms of the image processing are sometimes trained to recognize objects that are typical for a specific traffic scenario. For a toll or ticket scenario, object detection can be trained, for example, to detect barriers, automatic ticket machines, corresponding signs, etc.Furthermore, the navigation system 51 can be designed to identify locations, which are characteristic of a toll scenario or ticket scenario, by means of satellite position signal and map data. For this case, the navigation system 51 is designed to output corresponding location information GEO to the vehicle network 50.The control device 10 is designed by its internal control logic 11 to provide two operating modes for controlling the exterior mirror 112 and the window lifter 41.In a normal operating mode MOD=0, the control device 10 outputs a second output signal A 2 for folding the exterior mirror 112 in and / or out to the folding drive 32 via the second output 14 if a first control signal S 1 has been received by the operating element 20. Furthermore, the control device 10 outputs a third control signal A 3 to the vehicle network 50 via the interface 12. The third control signal A 3 can be received via the vehicle network 50 from a further door control device of a passenger door, not shown in the figures, so that a second exterior mirror on the passenger door is folded in and / or unfolded synchronously with the exterior mirror 112 of the driver door 110.If, based on signals from the vehicle network 50 which establish via the interface 12 that a toll or ticket scenario is present, the control logic 11 switches the control device 10 in a toll operating mode MOD=1. If a driver in the motor vehicle 100 actuates the operating element 20 so that the control device 10 receives a first control signal S 1 at the signal input 13, a first output signal A 1 is output via the first output 14 for completely automatically opening the side window 111 on the driver door 110. Furthermore, in toll mode MOD=1, a second output signal A2 for folding the exterior mirror 112 is output in response to a received first control signal S1.Under the condition that a toll or ticket scenario is present and has been detected, the driver can initiate a simultaneous complete opening of the side window 111 and folding of the exterior mirror 112 with a single operating element on a driver side of the motor vehicle 100.The control device 10 is further configured by its internal control logic 11 to close the side window 111 again and to fold out the folded-in exterior mirror 112 again as soon as it has been detected that the toll or ticket scenario is no longer imminent.Termination of a toll or ticket scenario can be detected, for example, when the driver has started up again with his vehicle and a speed signal v received from the vehicle network 50 exceeds a predetermined limit value (of, for example, 7 km / h).A toll scenario is recognized by the control logic 11 when location information GEO has been received, which identifies a corresponding traffic scenario, and / or when object information OBL has been received, which identifies an object that typically appears in a corresponding traffic scenario.Alternatively or additionally, a speed time profile typical of the corresponding traffic scenario can be used for detection. Furthermore, for the detection of typical driving maneuvers of a toll or ticket scenario, further signals such as a steering angle time profile can be used.FIG. 2 shows, by way of example, a method sequence according to which the control logic 11 can switch the control device 10 between a normal operating mode MOD=0 and a toll operating mode MOD=1.After initialization, the control device 10 is set in the normal operating mode MOD:=0 in a first step 201. In a subsequent second step 202, it is checked whether or not a received speed signal v is less than or equal to a limit value of 7 km / h. If the speed signal v is greater than the limit value, the control device 10 remains in the normal operating mode MOD=0.If a currently received speed signal v assumes the limit value of v≤7 km / h, a check is made in a third step 203 as to whether the exterior mirror 112 on the driver door 110 is folded in SP=1 or is folded out SP=0. If the exterior mirror 112 is folded in SP=1, the control device 10 remains in the normal operating mode MOD=0.If the exterior mirror 112 is folded out SP=0, a fourth step checks whether the side window 111 is fully open SF=1. If the side window 111 is completely open SF=1, the control device 10 remains in the normal operating mode MOD=0.If, for example, it is determined by an applied limit switch signal that the side window is not fully open SP=0, a check is made in the fifth step 205 as to whether the driver's door 110 is open FT=1 or closed FT=0. If the driver door 110 is open FT=1, the control device 10 remains in the normal operating mode MOD=0.If the driver door 110 is closed FT=0, the control device 10 is set in the toll operating mode MOD:=1 in the sixth step 206.In the normal operating mode MOD=0, a first output signal A 1 and a third output signal A 3 are output by the control unit 10 as a function of a received first control signal S 1, in order to fold both external mirrors of the motor vehicle 100 in or out.In the toll operating mode MOD=1, a first output signal A1 and a second output signal A2 are output by the control device 10 as a function of a received first control signal S1 in order to fold in the exterior mirror 112 on the driver door 110 and fully open the side window 111 on the driver door 110.FIG. 3 shows an exemplary method sequence for automatically retracting side window 111 and exterior mirror 112 on driver door 110 as soon as a toll scenario is finished.In a first step 301, the control logic 11 continuously checks whether or not a current speed signal v has exceeded a limit value of 7 km / h. As soon as the limit value is exceeded, in the second step 302 the control device 10 is reset to the normal operating mode MOD:=0.Subsequently, in the fourth and fifth steps 304 and 305, it is checked whether the exterior mirror 112 of the driver door 110 is folded SP=1 and whether the side window 111 of the driver door 110 is fully opened SF=1. If both conditions are fulfilled, a first output signal A 1 for closing the side window 111 and a second output signal A 2 for folding out the exterior mirror 112 are output by the control device 10.Although the subject matter has been illustrated and explained in more detail by way of exemplary embodiments, the invention is not restricted by the disclosed examples and other variations can be derived therefrom by the person skilled in the art. It is therefore clear that a large number of possible variations exist. It is also clear that embodiments mentioned by way of example represent only examples which are not to be understood in any way as limiting, for example, the scope of protection, the possible applications or the configuration of the invention. Rather, the preceding description and the description of the figures enable the person skilled in the art to implement the exemplary embodiments in concrete terms, wherein the person skilled in the art, having knowledge of the disclosed inventive idea, can make various changes, for example with regard to the function or the arrangement of individual elements mentioned in an exemplary embodiment, without departing from the scope of protection defined by the claims and their legal equivalents, such as, for example, further explanations in the description.List of Reference Numerals10 Control device 11 Control logic 12 Interface 13 Signal input 14 First output 15 Second output 20 Operating element 31 Window lifter drive 32 Folding drive 41 Window lifter 42 Folding mechanism 51 Navigation system 52 Camera system 53 Body control device 100 Motor vehicle 110 Driver door 111 Side window 112 External mirror OBJ Object information v Speed S 1 First control signal GEO Location information A 1 First output signal A 2 Second output signal A 3 Third output signalReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 10 2021 113 017 A1

[0002]

Claims

Method for controlling a motor vehicle (100), wherein it is continuously checked whether a specific traffic scenario is present or imminent based on at least one signal from a vehicle network (50), and wherein, if it is determined that the specific traffic scenario is present or imminent and if a control signal (S1) is received simultaneously from an operating element (20), a side window (111) on a driver door (110) of the motor vehicle (100) is actuated for complete automatic opening and an external mirror (112) on the driver door (110) is actuated for automatic folding.The method of claim 1, wherein the side window (111) on the driver door (110) is controlled for automatic closing and the exterior mirror (112) on the driver door (110) is controlled for automatic folding as soon as it is determined based on at least one signal from the vehicle network (50) that the determined traffic scenario no longer continues.Method according to one of the preceding claims 1 or 2, wherein, if a control signal (S1) is received from the operating element (20) and at the same time no presence or imminent presence of the specific traffic scenario is detected, the outer mirror (112) on the driver door and a second outer mirror on a front passenger door are controlled for automatic folding.Method according to one of the preceding claims 1 to 3, wherein the signals () comprise a time sequence of speed signals (v) for a current speed of the motor vehicle (100), and wherein a presence or a pre-existence of the specific traffic scenario is determined if a speed time profile characteristic of the specific traffic scenario has been detected in the received signals.Method according to one of the preceding claims 1 to 4, wherein the signals comprise current location information (GEO), and wherein a presence or a pre-existence of the specific traffic scenario is determined if it has been detected based on the location information that the motor vehicle (100) is located at a location which is characteristic of an occurrence of the specific traffic scenario.Method according to one of the preceding claims 1 to 5, wherein the signals comprise object information (OBJ) from a camera-based image processing system (52), and wherein a presence or a predominance of the specific traffic scenario is determined if object information characteristic for the specific traffic scenario has been detected in the signals.Control device for a motor vehicle (100) comprising a control logic (11), an interface (12) for a vehicle network (50), a signal input (13) for an operating element (20), a first output (14) for an electric window lifter of a side window (111) of a driver door (110) and a second output (15) for a drive (32) for folding an exterior mirror of the driver door (110), wherein the control logic (11) is designed to continuously receive signals from the vehicle network (50) via the interface (12) and continuously check, on the basis of signals, whether a specific traffic scenario is present or imminent, and wherein the control logic (11) is designed if a specific traffic scenario is present or imminent, based on a received control signal (S 1) from the operating element (20), a first control signal () for fully automatically opening the side window () of the driver's door () is output via the first output (14) and a second control signal for automatically folding the exterior mirror () of the driver's door () is output via the second output ().Control device according to Claim 7, and wherein the control logic (11) is designed, if the condition is not fulfilled, to output a second control signal (A2) for automatically folding the exterior mirror (112) of the driver door (110) via the second output (15) on the basis of a received control signal from the operating element (20).Motor vehicle having a control device (10) according to either of the preceding Claims 7 and 8.Computer program which, when executed on a computing unit within a control unit (10), instructs the respective computing unit to execute a method according to one of Claims 1 to 7.

Images