DE102016200412B4 - Method for adjusting an exterior mirror of a vehicle door and control device and motor vehicle - Google Patents

Abstract

Method for adjusting an exterior mirror (4) of a vehicle door (3) of a motor vehicle (1) for a person to exit, wherein by a control device (15) of the motor vehicle (1): - by means of a detection device (18) of the motor vehicle (1). a predetermined door opening event for opening the vehicle door (3) is detected when the vehicle door (3) swings open and/or at the beginning of the swing open, - an exit position (7) of the exterior mirror (4) defined for the vehicle door (3) is determined, wherein in the exit position (7) an exit area (12) external to the vehicle next to the vehicle door (3) and / or an area (5) starting from the exit area (12) and rearward relative to the person from a vehicle seat (11) in which the person is sitting , can be seen via the exterior mirror (4), - the exterior mirror (4) by controlling a controllable motor device (16, 16 ') of the exterior mirror (4) from a driving operating position (6) intended for driving the motor vehicle (1) into the exit position (7) is moved, characterized in that a movement of a mirror glass (9) of the exterior mirror (4) and a movement of the exterior mirror (4) itself are combined to achieve a greater angular velocity when adjusting the exterior mirror (4) by simultaneously two Parameters determining the mirror position can be changed.

Description

The invention relates to a motor vehicle control device and a method for adjusting an exterior mirror on a vehicle door of the motor vehicle in order to prepare a person to exit. The invention also includes a motor vehicle with said control device.

A motor vehicle of the type mentioned is, for example, from the DE 10 2006 014 204 A1 known. From this publication a motor vehicle is known with an adjustable exterior mirror device arranged on the vehicle in a door-mounted manner for observing the surroundings of the rear of the vehicle. While a vehicle door of the motor vehicle is swinging open, the exterior mirror device is adjusted depending on the door opening angle so that the person getting out can always observe the same surrounding area via the exterior mirror device, regardless of the opening angle. The disadvantage of this solution is that it may be too late for the person getting out to adjust the exterior mirror. If the person opens the vehicle door suddenly, for example, and a cyclist approaches at the same time, the person's reaction time may no longer be sufficient to close the vehicle door again before the cyclist collides with the door.

From the DE 10 2007 057 751 A1 It is known that the exterior mirror on the passenger side of a motor vehicle can be automatically adjusted for a passenger when he gets out in order to enable the passenger to see a blind spot when getting out.

From the DE 10 2009 049 368 A1 It is also known that an exterior mirror can be adjusted automatically when a passenger's desire to get out is detected. In order to avoid unnecessary or accidental triggering of this adjustment, it can be checked whether it is actually the vehicle occupant in the associated vehicle seat who wants to get out. The exterior mirror returns to its starting position when the person who has gotten out locks the vehicle.

From the EN 10 2013 217 670 A1 It is known that a vehicle occupant's desire to exit can be recognized by the fact that this person completely grasps a door handle. This is then used to unlock the vehicle's locking system.

From the DE 10 2011 119 579 A1 It is known that an outer door of a motor vehicle can be moved by motor and that sensor monitoring can take place.

The DE 20 2007 008 978 U1 shows an adjusting device for an exterior mirror of a motor vehicle, with an adjustable mirror surface, with a drive for adjusting the mirror surface and with a control unit for controlling the drive, the control unit being set up to adjust the drive during an opening process of a vehicle door assigned to the exterior mirror the mirror surface in such a way that a lower collision area swept over by the vehicle door can be seen.

The DE 10 2012 008 914 A1 relates to a method for controlling an exterior mirror of a vehicle from a folded-out position to a folded-in position using a proximity sensor to detect an object in a detection area directed against the direction of travel of the vehicle.

The KR 10 2012 0 020 746 A describes a device and a method for controlling an exterior seal of a vehicle so that the exterior mirror is prevented from unfolding when the exterior mirror approaches an obstacle while unfolding.

US 2009/0 256 677 A1 shows a system for authorizing access by an authorized user, for example to a vehicle or a building.

WO 2012/161 466 A2 shows a method for controlling the opening and closing of a side door of a vehicle, whereby the opening or closing movement of the door is stopped when an obstacle is detected.

The DE 87 16 486 U1 shows means for aligning a mirror according to the invention relative to the vehicle, consisting in detail of a tubular element, in the interior of which a sleeve is rotatably mounted, the rotational movement of which can be controlled by an epicycloidal gear so that the body rotates about a substantially horizontal axis.

The DE 101 28 998 A1 shows a drive device for the exterior mirror of a motor vehicle, wherein the energy supplied to the common drive motor of the adjustment means and the pivoting means is regulated in order to adjust the exterior mirror.

The DE 691 13 744 T2 shows remote-controlled rearview mirror device, such as a motor vehicle Door mirror device in which the mirror is held pivotable with respect to its housing.

The invention is based on the object of securing a person's exit process from a motor vehicle.

The task is solved by the subject matter of the independent patent claims. Advantageous developments of the invention are described in the dependent claims, the following description and the figures.

The invention provides a method for adjusting an exterior mirror of a vehicle door of a motor vehicle for a person to exit. The method is carried out by a control device of the motor vehicle. By means of a detection device of the motor vehicle, a predetermined door opening event for opening the vehicle door is detected before the vehicle door swings open and/or at the beginning of the vehicle door swinging open. Opening here only means the process before the actual swinging open, i.e. H. unlocking or unlocking the vehicle lock, which holds the vehicle door firmly in the door frame. The detected door opening event can include, for example, the person's hand approaching a door handle of the vehicle door and/or actuating the door handle, i.e. a door opening action carried out by the person. Detecting the start of the swinging open has the advantage that this can be detected as a door opening event itself indirectly based on a signal that is already present, e.g. based on an activity signal from the passenger compartment lighting or an opening signal from the rotary latch of the vehicle door, which signals that the vehicle door is no longer locked .

An exit position of the exterior mirror determined for the vehicle door is determined. In this exit position, an exit area external to the vehicle next to the vehicle door and/or an area to the rear of the person getting out can be seen from the vehicle seat in which the person is sitting via the exterior mirror. The exterior mirror is then moved or pivoted into the determined exit position before the vehicle door itself is moved. For this purpose, the exterior mirror is moved from a driving operating position intended for driving the motor vehicle into the exit position by activating a controllable motor device of the exterior mirror. By means of said detection device, the control device detects before the vehicle door actually swings open that the person is opening or wants to open the vehicle door to leave the motor vehicle. In other words, a door opening process or a door opening request is detected, the criterion for the door opening request being determined by the door opening event to be detected. The control device then moves the exterior mirror into the exit position, which is set up so that the person can see the exit area and/or the rear area via the exterior mirror.

The invention results in the additional advantage over the prior art that a passenger of the motor vehicle can also use the exterior mirror of the passenger door to secure the exit process. In conventional motor vehicles, the exterior mirror of the passenger door is set in a driver-oriented position in which the driver can see the rear area, but not the passenger. If the passenger's desire to get out is now recognized, the exterior mirror is adjusted according to the invention into the passenger-oriented position.

In order to move the exterior mirror into the exit position, the invention provides that the motor device is controlled by the control device in such a way that a mirror glass of the exterior mirror is moved by the motor device with respect to a mirror housing carrying the mirror glass and/or the mirror housing itself. The combination of the movement of both the mirror glass itself and the mirror housing has the advantage that two parameters that determine the mirror position are changed at the same time, so that a greater angular velocity results when adjusting the exterior mirror. Another advantage is that a larger angular range is available for adjusting the exit position.

According to one embodiment of the invention, the vehicle door is therefore a passenger door, in which case the driving operating position is a driver-oriented position of the exterior mirror and the exit position of the exterior mirror, on the other hand, is a passenger-oriented position for viewing the rear area.

But the method can also be advantageous for a driver of a motor vehicle. If the vehicle door is a vehicle door of a driver's cab of a commercial vehicle or truck, the exit area immediately adjacent to the vehicle door and the rear area located close to the driver's door cannot generally be seen via the exterior mirror of the driver's door in its driving operating position, because the rear-view mirror of the driver's door is set too high. One embodiment of the invention therefore provides that the vehicle door is a vehicle door of a driver's cab of a truck and is in the exit position compared to the driving position a field of vision or detection area of the exterior mirror is pivoted or tilted downwards. This allows the driver to recognize people approaching underneath the vehicle door. However, this embodiment is also useful for passengers of a truck, so this embodiment is also intended for adjusting an exterior mirror of a passenger door of a truck.

The invention results in several further developments depending on which door opening event is detected and which sensor and/or which signal is used for this purpose.

The control device can detect the door opening event based on a respective sensor signal from at least one of the following sensors. A sensor signal from a micro button can be detected, with a movement of a door handle and/or a door lock of the vehicle door being detected as a door opening event. The movement of the door handle and/or the door lock can also be detected using a Hall sensor. The inside door handle and/or the inside door handle kinematics are monitored using these sensors. Using an optical sensor, a covering of the door handle by a hand and/or an approach of the hand to the door handle can be detected. This manifests itself in a darkening in the area of the optical sensor, which can be detected in the sensor signal. An approach of the hand to the vehicle door, in particular to the door handle, can be detected using a capacitive proximity sensor. Using a camera and an image processing device, a predetermined exit gesture of the person can be recognized. For example, the image processing device can signal if a movement of the hand towards a door handle of the vehicle door is detected. A signal from a circuit for detecting an opening process of a belt buckle can also be evaluated.

Additionally or alternatively, the door opening event can be detected based on an activity signal of one of the following actuator devices: an electrical and/or pneumatic and/or hydraulic travel device or swing-open device of the vehicle door and/or an electrically operated pawl. For example, it may be possible for the vehicle door to be opened purely electrically and only with a button. For example, the button signal can be used. The pawl can be unlocked with an electric motor, for example. A sliding door or a swing door can be opened or swung open completely electrically/pneumatically/hydraulically (so-called O-pen-by-wire).

The at least one sensor used and/or the at least one actuator device used represent the said detection device as a whole.

After the exterior mirror has been moved into the exit position, the exterior mirror must at some point be moved out of the exit position again by activating the motor device. According to a further development, this takes place if the vehicle door is closed again. A further development provides for this if the motor vehicle is detected driving off. Here, the exterior mirror is preferably moved back into the driving position. Additionally or alternatively, a locking system of the motor vehicle can signal a locking process, in which case the exterior mirror is then folded into a parking position on the vehicle door. Additionally or alternatively, it can be provided that after the exit process, when the person has left the motor vehicle, it is detected that another person is still in the motor vehicle. For example, if the passenger gets out and the driver remains seated in the motor vehicle, this detects that the exterior mirror must be moved back into the driving position. To implement this exit concept, seat occupancy for vehicle seats of the motor vehicle can be evaluated or determined, for example, on the basis of corresponding sensor devices known from the prior art.

Several further training courses concern the question of how the exit position is determined. A further development provides that the exit position is set in a configuration mode of the control device with a control element for the mirror adjustment of the exterior mirror and / or a control element of an infotainment system of the motor vehicle and is then saved. Additionally or alternatively, it can be provided that a personalized exit position is selected for the person and read out from a data memory. The exit position can be selected by the person themselves, for example, using an operating menu of the infotainment system (information entertainment system). If no individual setting is selected, further training provides a fixed default setting that is used as the exit position.

There is an advantageous development for this, in which the default setting is determined using a predetermined model from a position and/or position of the vehicle seat and/or a vehicle geometry. Based on the seating position, longitudinal adjustment, height adjustment and/or backrest angle adjustment, For example, conclusions can be drawn about the height of the person in the model. Based on the vehicle geometry, for example, a height of the vehicle door can be taken into account, as can be relevant, for example, in the driver's cab of a truck to determine the exit position.

As already stated, the invention also includes the control device for the motor vehicle, the control device being set up to carry out an embodiment of the method according to the invention.

Finally, the invention also includes the motor vehicle itself, which has a vehicle door having an exterior mirror and a motor device and a detection device for detecting a predetermined door opening event for opening the vehicle door. The motor vehicle according to the invention is characterized by an embodiment of the control device according to the invention. The motor vehicle according to the invention can be a passenger car or a truck, that is to say a commercial vehicle.

• 1 eine schematische Darstellung einer Ausführungsform des erfindungsgemäßen Kraftfahrzeugs und
• 2 eine schematische Darstellung von Komponenten des Kraftfahrzeugs von 1 zur Veranschaulichung einer Ausführungsform des erfindungsgemäßen Verfahrens.

An exemplary embodiment of the invention is described below. This shows:

• 1 a schematic representation of an embodiment of the motor vehicle according to the invention and
• 2 a schematic representation of components of the motor vehicle 1 to illustrate an embodiment of the method according to the invention.

The exemplary embodiment explained below is a preferred embodiment of the invention. In the exemplary embodiment, the described components of the embodiment each represent individual features of the invention that can be viewed independently of one another, which also develop the invention independently of one another and are therefore also to be viewed as part of the invention individually or in a combination other than that shown. Furthermore, the described embodiment can also be supplemented by further features of the invention that have already been described.

In the figures, functionally identical elements are each provided with the same reference numerals.

1 shows a motor vehicle 1, which can be, for example, a motor vehicle, in particular a passenger car or truck. The motor vehicle 1 is shown from a bird's eye view, with a forward direction of travel 2 towards the upper edge of the 1 points.

The motor vehicle 1 has a vehicle door 3, which in the illustrated example is a passenger door. A side mirror or exterior mirror 4 is provided for the vehicle door 3. A rear area 5 can be viewed or observed via the exterior mirror 4. The exterior mirror 4 has two positions, namely a driving position 6 and an exit position 7. In 1 The two positions are visually distinguished in that it is illustrated how in the driving operating position 6 from a driver's seat 8 by looking at a mirror glass 9 of the exterior mirror 4, a detection area or field of view 10 of the exterior mirror 4 for a person sitting on the driver's seat 8 in the rear area 5 is aligned. In the exit position 7, on the other hand, for a person in a passenger seat 11, their field of vision 10 is redirected into the rear area 5 when looking at the mirror glass 9. Here, a surface normal of the mirror glass 9 is pivoted at a more acute angle to the longitudinal axis of the vehicle and thus the field of vision 10 of the exterior mirror 4 is pivoted further away from the motor vehicle 1 than in the driving operating position 6. The field of vision 10 can also be lowered downwards for the exit position. Ie the surface normal is then inclined further downwards compared to the driving operating position 7.

In the driving operating position 6, the driver in the driver's seat and in the exit position 7 the front passenger in the passenger seat 11 can each view the rear area 5 via the exterior mirror 4. The rear area 5 is in particular the area that is located behind an exit area 12 starting from the forward direction of travel 2. The exit area can, for example, be the area that is swept over when the vehicle door 3 is swiveled open.

A swivel movement 13 of the exterior mirror 4 from the driver position 6 to the exit position 7 is carried out automatically in the motor vehicle 1. The method used for this is described below using 2 illustrated. 2 shows a door handle 14 with the associated mechanism of the vehicle door 3. Furthermore, a control device 15 is shown, which can be, for example, a door control device of the vehicle door 3. Furthermore, the outside mirror 4 is shown with the mirror glass 9 and a first motor unit 16 for moving a mirror housing 17 of the outside mirror 14 and a second motor unit 16' for pivoting the mirror glass 9 with respect to the mirror housing 16. The motor units 16, 16' can be, for example, electric motors, which for example are means of a mechanical The position of the play housing 16 or mirror glass 9 can be determined or adjusted using a gear mechanism, for example a worm. The motor units 16, 16' represent a motor device.

The door handle 14 is an inside door handle of the vehicle door 3. A detection device 18, which can be arranged in the door handle 14, for example, detects before the vehicle door 3 actually swings open that the passenger wants to open the vehicle door 3 to leave the motor vehicle 1. A corresponding sensor signal 19 from the detection device 18 is received by the control device 3. The control device 3 then moves the exterior mirror 4, i.e. the mirror glass 9 and/or the mirror housing 16, from the driver-oriented driving operating position 6 into the passenger-oriented exit position 7 by generating corresponding control signals 20 for the motor units 16, 16 '. The passenger can then observe the traffic behind in the rear area 5 more comfortably.

The detection device 18 can be arranged in the manner described in the inside door handle, in the inside door handle kinematics or also on a door lock of the vehicle door 3. It can be, for example, a microswitch, a Hall sensor or a capacitance proximity sensor. With the detection device 18, the passenger's desire to open the door is signaled as a sensor signal 19.

While the driving operating position 6 can be adjusted by a driver according to his needs, the exit position 7 must be provided in the control unit 3 so that the control unit 3 can generate the corresponding control signals 20 when receiving the sensor signals 19. For example, the following technical solutions can be provided. The passenger-oriented exit position 7 is adjusted individually using a control element for the mirror adjustment of the exterior mirror 4, for example by the passenger himself. Instead of the control element for the mirror position, a control element of a central control part, for example an infotainment system, can also be used. If no individual setting has been made, it can be provided that the passenger-oriented exit position 7 is a fixed basic setting or default setting, which is then approached accordingly. This default setting can be determined on a model-based basis. A corresponding digital model 21, for example, calculates the default setting from the position of the seat (seating position, such as longitudinal and height adjustment, backrest angle adjustment). If a personal setting has been made by the passenger, this is saved and can therefore be accessed in a menu, for example, which shortens access for the passenger.

When the motor vehicle 1 starts driving, it can be provided that the exterior mirror 4 is pivoted back from the exit position 7 into the driving operating position 6. It can also be provided that when the motor vehicle 1 is locked, the exterior mirror 4 is moved into a parking position, in which the play housing 16 is folded towards the vehicle door 3. An observation of the people in the vehicle interior of the motor vehicle 1 can also be provided, for example by means of a camera and an image evaluation device. From this it can be seen that the passenger has gotten out of the motor vehicle 1, but the driver is still sitting in the driver's seat 8. This can also be detected using appropriate seat occupancy sensors. In such a case, it can be provided that the exterior mirror 4 is also pivoted back into the driving operating position 6 so that the driver can use the exterior mirror 4 from the driver's seat 8 to observe the rear area 5 again.

Overall, the example shows how the invention can provide passenger exterior mirror adjustment before exiting.

Reference symbol list

1

motor vehicle

2

Forward direction of travel

3

vehicle door

4

Exterior mirror

5

Rear area

6

Driving position

7

exit position

8th

Driver's seat

9

Mirror glass

10

Field of view

11

Passenger seat

12

Exit area

13

Pivoting movement

14

Door handle

15

Control unit

16

First motor unit

16'

Second motor unit

17

Mirror housing

18

Detection device

19

Sensor signal

20

Control signals

21

Model

Claims (10)

Method for adjusting an exterior mirror (4) of a vehicle door (3) of a motor vehicle (1) for a person to exit, wherein by a control device (15) of the motor vehicle (1): - by means of a detection device (18) of the motor vehicle (1). a predetermined door opening event for opening the vehicle door (3) is detected when the vehicle door (3) swings open and/or at the beginning of the swing open, - an exit position (7) of the exterior mirror (4) which is set for the vehicle door (3) is determined, wherein in the exit position (7), an exit area (12) external to the vehicle next to the vehicle door (3) and/or an area (5) extending from the exit area (12) and rearward relative to the person from a vehicle seat (11) in which the person is sitting , can be seen via the exterior mirror (4), - the exterior mirror (4) by controlling a controllable motor device (16, 16 ') of the exterior mirror (4) from a driving operating position (6) intended for driving the motor vehicle (1) into the exit position (7) is moved, characterized in that a movement of a mirror glass (9) of the exterior mirror (4) and a movement of the exterior mirror (4) itself are combined to achieve a greater angular velocity when adjusting the exterior mirror (4) by simultaneously two Parameters determining the mirror position can be changed. Procedure according to Claim 1 , wherein the vehicle door (3) is a passenger door and the driving operating position (6) is a driver-oriented position and the exit position (7) is a passenger-oriented position for viewing the rear area (5). Method according to one of the preceding claims, wherein the vehicle door (3) is a vehicle door of a driver's cab of a truck and in the exit position (7) a detection area (10) of the exterior mirror (4) is pivoted downwards compared to the driving operating position (6). Method according to one of the preceding claims, wherein the door opening event is triggered by the control device (15). a) at least one of the following sensors (18) is detected on the basis of a respective sensor signal (19): a micro button for detecting a movement of a door handle (14) and / or a door lock of the vehicle door (3), a Hall sensor for detecting the movement the door handle (14) and/or the door lock, an optical sensor (18) for detecting a covering of the door handle (14) by a hand and/or an approach of the hand to the door handle (14), a capacitive proximity sensor (18) for Detecting the approach of the hand, a camera and an image processing device for recognizing a predetermined exit gesture of the person, a circuit for detecting an opening process of a belt buckle, and / or b) is detected on the basis of an activity signal of one of the following actuator devices: an electrical and/or pneumatic and/or hydraulic traversing device or swing-open device of the vehicle door and/or an electrically operated pawl. Method according to one of the preceding claims, wherein in order to move the outside mirror (4) into the exit position (7) by the control device (15), the motor device (16, 16') is controlled such that a mirror glass (9) of the outside mirror (4) is moved relative to a mirror housing (17) carrying the mirror glass (9) and/or the mirror housing (17) is moved by the motor device (16, 16'). Method according to one of the preceding claims, wherein the exterior mirror (4) is moved out of the exit position (7) again by activating the motor device (16, 16') if: - the vehicle door is closed again and/or - a departure of the motor vehicle (1) is detected and/or - A locking system of the motor vehicle (1) signals a locking process and/or - another person is detected in the motor vehicle (1) after the exit process. Method according to one of the preceding claims, wherein the exit position (7) is determined by: - the exit position (7) is set in a configuration mode of the control device (15) with a control element for the mirror adjustment and/or a control element of an infotainment system and then saved and/or - a personalized exit position (7) is selected for the person and read out from a data memory and/or - a fixed default setting is used if no individual setting is selected. Procedure according to Claim 7 , wherein the default setting is determined by means of a predetermined model (21) from a position and/or position of the vehicle seat (11) and/or a vehicle geometry. Control device (15) for a motor vehicle (1), the control device (15) being set up to carry out a method according to one of the preceding claims. Motor vehicle (1) comprising: - a vehicle door (3) having an exterior mirror (4) and a motor device (16, 16 '), - a detection device (18) for detecting a predetermined door opening event for opening the vehicle door (3), - a control device (15) according to Claim 9 .

Images