DE102020213962A1 - Method for performing a parking maneuver of a motor vehicle in a parking space and device, in particular motor vehicle for this - Google Patents

Abstract

The invention relates to a method for performing a parking maneuver of a motor vehicle (100) onto a parking space (200), which comprises that the motor vehicle (100), depending on a current parking phase during the parking process, selects acoustic, optical and / or haptically detectable signals are output. The signals are different in at least two of the possible parking phases and are exclusively dependent on the parking phases, in particular not additionally dependent on the location of other motor vehicles (300, 400).

Description

The present invention relates to a method for performing a parking maneuver of a motor vehicle onto a parking space. Motor vehicles can nowadays support the vehicle driver when parking and/or leaving a parking space. There is typically a point from which the motor vehicle recognizes the situation that parking is planned. With advanced systems, the vehicle driver can leave the vehicle in some motor vehicles and, by giving signals, either physically on the vehicle or with the help of a wireless signal-transmitting device, cause the motor vehicle to be parked again, which then finally completes the parking process automatically from a third point . It is also known that the driver of the vehicle is supported by a signaling about the parking progress. In simple, very common systems, a display device is provided in the motor vehicle interior, which flashes faster the closer it is to another motor vehicle and emits louder or faster acoustic signals.

From the U.S. 2018/0194344 A1 it is known to have a parking maneuver carried out automatically by a motor vehicle, for example in a parking lot that is repeatedly approached. This informs the vehicle driver via signals in the motor vehicle or via message transmission to a smartphone and the like when a defined starting position for the parking maneuver is given, when the destination has been reached, or even when obstacles are present. the U.S. 2015/0127208 A1 describes the coupling of a motor vehicle with a portable device such as a smartphone in order to carry out signaling, in particular when parking, using the device.

The invention is based on the object of further developing a method for executing a parking maneuver of a motor vehicle in a parking space such that the vehicle driver is better supported in his assessment of the situation. The task also includes the provision of suitable devices. A parking maneuver can include both a parking maneuver and a parking maneuver of a motor vehicle.

The object is achieved in that, depending on a current parking phase during or during the process of parking by the motor vehicle, acoustic, optical and/or haptic signals are output from a plurality of possible parking phases, which are different for at least two of the possible parking phases , whereby this occurs at least otherwise independently of the location of other motor vehicles. In other words, the parking phase can possibly be defined using other motor vehicles - which itself is not even mandatory - but the signaling should be related to the parking phase and not to the proximity to other motor vehicles. The signals are different, particularly within the context of a scenario, that is to say they are specified in a combination of a number of signal types, with the combination being dependent on the parking phase. A parking phase during or in the process of parking can also relate to the beginning and the end of the parking process. In particular, the vehicle can, for example, issue a message that the parking process has actually been completed.

The invention has the advantage that the vehicle driver and also other occupants do not have to assess the parking situation themselves, but instead recognize from the signaling in which parking phase the motor vehicle is located and what they may still have to do themselves. The signaling can take place in the form of so-called scenarios, which have a recognition value for the vehicle driver. He may then know that the actual parking process can begin at a certain point in time, that he can leave the motor vehicle if necessary, and that he may not need to input any further signals because the motor vehicle will park automatically from the certain point in time. Since the signaling is carried out by the motor vehicle, the method can easily be used by different vehicle drivers (possibly with different smartphones, etc.).

In a preferred embodiment of the method, a signaling unit of the motor vehicle recognizes the current parking phase and outputs corresponding signals. Existing sensors in the motor vehicle can be used here, the output data of which can be evaluated by the signaling unit.

In a specific embodiment, this takes place in that the signaling unit recognizes the current parking phase based on at least one point on a trajectory when parking takes place along a trajectory of a predetermined type.

The acoustic, optical and/or haptic signals can be output into a vehicle interior. This makes sense in particular when it has been recognized that the vehicle driver is in the vehicle interior.

Alternatively, the acoustic, optical and/or haptically detectable signals can also be emitted by the motor vehicle to its surroundings if it has been recognized that the driver is rer is not in the vehicle interior. This can be detected, for example, by evaluating suitable sensors in the seat for seat occupancy detection and/or via the position or distance data of the vehicle key and/or evaluating the opening of the driver's door. In this case, for example, at least one loudspeaker of the motor vehicle that is output to the environment and/or a lighting device of the motor vehicle that is output to the environment is used. The lighting device can be a lamp or a blinker, for example. A sound generator can be used as a loudspeaker, for example, which is used in electric vehicles to generate vehicle noises for the environment.

The acoustic, optical and/or haptic signals can alternatively be output to the environment of a smartphone communicating with the motor vehicle.

The signals can also consist of at least a combination of light and sound signals from different devices (e.g. vehicle and smartphone). Ideally, a (each specific) sound and light production is provided.

The invention can be extended by a signaling unit recognizing the required number of trains for a parking process and issuing signals depending not only on the parking phases but also on the total or the remaining number of trains (the signals are different for different combinations of parking phases and number of trains).

Achieving the object also includes providing a device for parking a motor vehicle, which comprises a signaling unit for outputting acoustic, optical and/or haptic signals, with a plurality of parking phases being defined for at least one parking scenario, and the signaling unit being designed Depending on a current parking phase (and - at least otherwise - regardless of the location of other motor vehicles) to output acoustic, optical and / or haptically detectable signals that are different for at least two of the defined parking phases.

In an alternative embodiment, a further specific sound and light production can take place in order to signal to the driver the required number of turns for the parking process (depending on the parking space size, the vehicle dimensions, the vehicle position).

The advantages of the method according to the invention also apply to the device. The device is provided in particular as a motor vehicle or in a motor vehicle as part thereof. In one embodiment, this can include a seat occupancy sensor for the driver's seat, which transmits the seat occupancy or non-occupancy to the signaling unit. If the seat is occupied, the signals are emitted into the vehicle interior by the signaling unit, whereas if the seat is not occupied, the signals are emitted by the motor vehicle in its surroundings by the signaling unit. In this way, the signals are transmitted to the vehicle driver with pinpoint accuracy.

Further features of the invention can result from the following description of the figures and from the drawing. The features and feature combinations mentioned above in the description and the features and feature combinations shown below in the description of the figures and/or in the figures alone can be used not only in the combination specified in each case, but also in other combinations or on their own, without going beyond the scope of the invention to leave.

• 1A eine Situation, in die ein Kraftfahrzeug durch den Fahrzeugführer derart gesteuert wurde, dass ein Einparkvorgang begonnen werden kann,
• 1B die darauffolgende Situation, bei der der Fahrzeugführer das Kraftfahrzeug verlassen hat und den Einparkvorgang von außen ansteuert, und
• 1C die nächste Situation, ab der das Kraftfahrzeug selbstständig den Einparkvorgang abschließt;
• 2 die Schritte einer Ausführungsform des erfindungsgemäßen Verfahrens bei einem Einparken; und
• 3 einen Aspekt des erfindungsgemäßen Verfahrens, wie es sich beim Abbruch eines Parkvorgangs verwirklicht.

The drawing shows in:

• 1A a situation in which a motor vehicle was controlled by the vehicle driver in such a way that a parking maneuver can be started,
• 1B the subsequent situation in which the driver has left the motor vehicle and controls the parking process from the outside, and
• 1C the next situation from which the motor vehicle independently completes the parking process;
• 2 the steps of an embodiment of the method according to the invention when parking; and
• 3 an aspect of the method according to the invention, as it is realized when a parking process is aborted.

Elements that are the same or have the same function are provided with the same reference symbols in the figures.

in the in 1A In the situation shown, a motor vehicle 100 is to be parked in a parking space 200 between two other motor vehicles 300 and 400. The presence of motor vehicles 300 and/or 400 is not absolutely necessary in order to carry out the method.

A driver 2 of the motor vehicle 100 spends this first in a situation where With the help of sensors, such as a camera 4, an ultrasonic sensor 6 and (optionally) a microphone 8, it can be recognized that motor vehicle 100 is approaching a parking space 200 and is obviously being driven there for the purpose of parking. In particular, an algorithm runs in a control unit 10 of motor vehicle 100, which evaluates the data from sensors 4, 6 and 8 and checks whether a trajectory T of a predetermined type matches the situation. At point P1, signaling begins to the vehicle driver 2 by means of an optical signaling unit 12 (shown here as a flashing lamp), an acoustic signaling unit 14 (here symbolized as a loudspeaker), and means 16 for outputting haptically detectable signals (here designed on the steering wheel of the motor vehicle , for example in the form of vibration sensors).

The vehicle driver recognizes from the staging (the specific composition of the signals at the signaling units 12, 14 and 16, as specified by the control unit 10) in which parking phase the motor vehicle is and transfers the motor vehicle to the in 1 B situation shown. From point P2 on the trajectory, the vehicle driver 2 can now leave the motor vehicle and park it further by remote control using a suitable device, e.g. using a suitable app on a smartphone 18a, which interacts with a corresponding transmitting and receiving unit 18b of motor vehicle 100. If the motor vehicle then reaches point P3 on the trajectory, it can automatically complete the parking process in order to reach point P4, at which point it is correctly positioned in parking space 200. At each point P1, P2, P3, P4, a change in the composition of the output signals (staging) is initiated (different lights and/or the same lights with a different flashing frequency and/or additional lights and/or different sound output and/or sound output sequence and / or additional sound output, and/ or possibly other and/ or additional haptically detectable signals).

The inventive method comprises the following steps, which are based on the 2 be explained: The unit B10 here stands for a condition or a plurality of conditions that are given before the method starts in step S10. The conditions B10 can include that the position of a free parking space can be detected by the sensors 4, 6 and 8 of the motor vehicle or the algorithm in the control unit 10, the position of the point P1 can now be detected and the trajectory T can be related. In the case of a parking space that has already been used earlier, the trajectory T can be known on the basis of so-called trained parking. The position of point P2 can also be transmitted and thus known. Finally, the position of the motor vehicle itself is also included in conditions B10. Optionally, a stored distance to a parking space and to other motor vehicles can be included.

In step S10 it is checked whether a starting point for parking is in the immediate vicinity of the motor vehicle. As long as this is not the case, there is a transition to step S12, according to which there is no output of a sound and light production, and possibly also no haptically detectable signals are output. If, on the other hand, a starting point P1 is in the vicinity of motor vehicle 100, it is determined in step S14 whether an approach scenario for parking functions fits the situation. This can depend on conditions B12, namely the activation state (vehicle driver has informed the motor vehicle via an input that parking is desired), or alternatively or additionally that the parking menu is activated in the display. If the determination as to whether an approach scenario for parking functions matches the situation has a negative result, the process goes back to step S12. If, on the other hand, an approach scenario for parking functions is recognizable, there is a transition to step S16, according to which it is determined whether the vehicle driver is in the motor vehicle. This can depend on conditions B14, namely the vehicle condition, the position of the vehicle key and/or an auxiliary device such as the smartphone 18a etc. If it is determined that the driver is in the motor vehicle, an interior and scenario is determined according to step S18 -Specific sound and light staging issued, see 1A with the signaling units 12, 14 and 16. If, on the other hand, the check in step S16 is negative, i.e. the driver is not in the motor vehicle, the system moves to step S20, according to which an exterior and scenario-specific sound and light production takes place, see 1 B .

The method according to the invention also includes that a parking phase “end of the parking process” can be recognized. This is the case when the motor vehicle is located at the end point of this parking maneuver during the parking maneuver.

The method according to the invention also includes that a parking phase “abort of the parking process” can be recognized. this is in 3 Illustrated: In step S22, it is checked whether a parking cancellation scenario for parking functions is detected for the specified situation, which can also depend on conditions B16. If this is not the case, no sound and light productions are output in step S24. If, on the other hand, a parking cancellation scenario is recognizable, it is checked in step S24 whether the driver is in the motor vehicle. If the driver is sitting in the driver's seat, According to step S26, as in step S18, a scenario-specific sound and light production is released into the interior of the motor vehicle, analogous to the situation in 1A . Otherwise, scenario-specific audio and light signals are output to the exterior, ie, to the area surrounding the motor vehicle, in accordance with step S28.

Reference List

2

vehicle driver

4

camera, sensor

6

ultrasonic sensor, sensor

8th

microphone, sensor

10

control unit

12

lamp

14

speaker

16

vibrator

18a

smartphone

18b

Transmitting and receiving unit

100

motor vehicle

200

parking lot

300

other motor vehicle

400

other motor vehicle

B

Condition

P

Point

T

trajectory

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• US 2018/0194344 A1 [0002]
• US 2015/0127208 A1 [0002]

Claims (10)

Method for performing an automatic parking maneuver in a parking space (200) by a motor vehicle (100), wherein in the method depending on a current parking phase in the process of parking from a plurality of possible parking phases, but at least otherwise independent of the location of other motor vehicles ( 300, 400), the motor vehicle (100) outputs acoustic, optical and/or haptic signals which are different for at least two of the possible parking phases. procedure after claim 1 In which a parking unit (10) of the motor vehicle (100) carries out the automatic parking and a signaling unit (10) recognizes the current parking phase and outputs corresponding signals. procedure after claim 2 , in which the parking unit is parked along a trajectory (T) of a predetermined type and the signaling unit detects the current parking phase using at least one point (P1, P2, P3, P4) on the trajectory (T). Method according to one of the preceding claims, in which the acoustic, optical and/or haptically detectable signals are emitted by the motor vehicle (100) in its environment if it has been detected that the driver of the motor vehicle is not in the vehicle interior. Method according to one of the preceding claims, characterized in that the signals are output at least by a smartphone (8a) communicating with the motor vehicle and/or by means of a loudspeaker output to the environment by the motor vehicle and/or by means of a lighting device output by the motor vehicle to the environment . Method according to one of the preceding claims, characterized in that the signals consist of at least a combination of light and sound signals from different devices. Method according to one of the preceding claims, characterized in that at least one parking phase (P1, P2, P3, P4) is recognized based on the distance of the vehicle from a possible starting point or the end point of a parking process. Method according to one of the preceding claims, characterized in that a signaling unit (10) recognizes the number of trains required for a parking process and outputs signals depending on the parking phases and number of trains. Device with a parking unit for performing an automated parking maneuver by a motor vehicle (100), and with a signaling unit for outputting acoustic, optical and/or haptic signals, wherein the parking unit defines a plurality of parking phases for at least one parking scenario and the signaling unit is designed , depending on a current parking phase and at least otherwise independent of the location of other motor vehicles (300, 400), to output acoustic, optical and / or haptically detectable signals that are different for at least two of the defined parking phases. Motor vehicle (100) with a device claim 9 .

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