DE102015218812A1 - Driver assistance system for a motor vehicle and method for operating a driver assistance system - Google Patents

Abstract

The invention relates to a driver assistance system (100) for a motor vehicle (110a) having a processor (101) configured to operate the driver assistance system (100) in a parking mode or in a parking mode, and a communication module (103) for communicating with a driver Driver assistance system of a parked motor vehicle, which is operated in park mode. The processor (101) is configured to send a parking request to the driver assistance system of the parked motor vehicle in the parking mode by means of the communication module in order to cause the parked motor vehicle driver assistance system to move the parking motor vehicle in order to create a parking space for the motor vehicle (110a) ,

Description

TECHNICAL AREA

The present invention relates to a driver assistance system for a motor vehicle and to a method for operating a driver assistance system. In particular, the invention relates to a driver assistance system for a motor vehicle and a method for operating a driver assistance system using Car2X communication.

TECHNICAL BACKGROUND

In modern vehicles, the driver is supported by a variety of electronic systems and driver assistance systems in the operation of the vehicle. In the case of automatic driving, as is the case, for example, with an automatic parking or parking operation of a vehicle, the environment must always be observed. Based on this observation, the driver assistance system must decide whether it is safely possible to initiate or perform certain changes in position of the vehicle. Particularly in the case of automatic or semi-automatic parking operation in or out of a parking space, it is important to also observe the flowing traffic and to inform the driver assistance system whether the space required for the parking operation is available. These observation values decisively determine the behavior of the system and pass on the corresponding behavior information to the driver.

Further, in modern vehicles, Car2Car and Car2Infrastructure communication, collectively referred to as Car2X communication, is gaining in importance as the Car2X communication as part of an Intelligent Transport System (ITS), in particular, for increasing road safety, improving traffic flow and reducing energy consumption. In the long term, Car2X communication is also considered one of the key factors for fully autonomous driving, allowing the vehicle to react automatically to changing driving situations.

In Car2X communication, a vehicle can exchange information with other road users (also referred to as communication nodes) over a radio link. Such communication can be done for example via a WLAN. Once two road users, for example two vehicles, are within the mutual radio range, they can automatically form a communication link as part of a decentralized ad hoc network. Within the decentralized Ad-Hoc network, they can exchange data such as position, driving speed and direction of travel to generate appropriate instructions or warnings in the respective vehicle and, if necessary, to initiate suitable actions. Since the wireless range of such WLANs is limited to a few hundred meters, each communication node usually serves as a router with a routing algorithm implemented therein, in order to decide whether incoming data should be forwarded to other communication nodes.

DESCRIPTION OF THE INVENTION

It is the object of the present invention to provide an improved driver assistance system for a motor vehicle and improved methods for operating such a driver assistance system, which in particular allow to improve the use of parking areas for motor vehicles.

This object is solved by the subject matters of the independent claims. Advantageous embodiments of the invention are the subject of the dependent claims, the description and the figures.

According to a first aspect, the invention relates to a driver assistance system for a motor vehicle having a processor that is configured to operate the driver assistance system in a parking mode or in a parking mode, and a communication module for communicating with a driver assistance system of a parked motor vehicle that is operated in parking mode. In this case, the processor is designed to send a parking request to the driver assistance system of the parked motor vehicle in parking mode by means of the communication module in order to cause the driver assistance system of the parked motor vehicle to move the parking motor vehicle in order to create a parking space for the motor vehicle.

According to one embodiment, the driver assistance system is configured, in parking mode, in response to receiving the parking request, to decide whether the distance to adjacent objects or parked vehicles is large enough to provide the parking space for the motor vehicle.

According to one embodiment, the driver assistance system is configured to decide in parking mode in response to receiving the parking request in coordination with a driver assistance system of at least one further parking motor vehicle, whether the distance to adjacent objects or parked vehicles is large enough to the parking space for the motor vehicle create.

According to one embodiment, the driver assistance system is designed to tell the motor vehicle in the parking mode whether the distance to neighboring objects or parked motor vehicles is large enough to create the parking space for the motor vehicle.

According to one embodiment, the parking request may include information about the dimensions of the motor vehicle.

In one embodiment, the driver assistance system may further include a proximity sensing system. In this case, the near-field detection system can be designed to determine the respective distance to adjacent objects or parked motor vehicles in parking mode of the driver assistance system.

According to one embodiment, the driver assistance system is designed to start an engine of the parked motor vehicle in parking mode and to move the parking motor vehicle in order to create the parking space for the motor vehicle.

According to one embodiment, the driver assistance system is configured, in parking mode, after the driver assistance system has moved the parking motor vehicle to create a parking space for the motor vehicle, and the motor vehicle has moved into the parking space, to move the parking motor vehicle in the direction of the motor vehicle Distance to the motor vehicle to reduce.

According to one embodiment, the driver assistance system is designed to switch off the engine of the motor vehicle after the motor vehicle has reached its target position.

According to one embodiment, the communication module is designed as a Car2X communication module. The communication module may be configured to communicate via an ad hoc network communication technology, in particular an ITS G5 communication technology or a IEEE 802.11p based communication technology. The communication module may be connected to a CAN bus or a Flexray bus or a MOST bus or an Ethernet bus of the motor vehicle.

According to a second aspect, the invention relates to a method for operating a driver assistance system for a motor vehicle. The method comprises the following steps: operating the driver assistance system in a parking mode, and sending a parking request to the driver assistance system of a parked motor vehicle to cause the parked motor vehicle driver assistance system to move the parked motor vehicle toward a parking space for the motor vehicle create.

According to a third aspect of the invention, the invention relates to a further method for operating a driver assistance system for a motor vehicle. In this case, the further method comprises the following steps: operating the driver assistance system in a parking mode; receiving a parking request from a motor vehicle operated in the parking mode; and the method of the motor vehicle operated in the parking mode to create a parking space for the vehicle operating in the parking mode.

According to a fourth aspect, the invention relates to a computer program with a program code for carrying out the method according to the second aspect of the invention or the method according to the third aspect of the invention, when the computer program is executed on a computer.

The computer program can be executed by the driver assistance system. The driver assistance system can be set up for this program.

The invention can be implemented in software and / or in hardware.

DESCRIPTION OF THE FIGURES

Further embodiments will be explained with reference to the accompanying figures. Show it:

1 a schematic diagram of a driver assistance system as part of a motor vehicle according to an embodiment;

2a -D schematic diagrams for the operation of the driver assistance system of 1 according to an embodiment;

3 a diagram of a method for operating the driver assistance system of 1 according to an embodiment; and

4 a diagram of a method for operating the driver assistance system of 1 according to one embodiment.

DETAILED DESCRIPTION OF THE FIGURES

1 shows a diagram of a driver assistance system 100 according to an embodiment, that in a motor vehicle 110a is implemented. The driver assistance system 100 includes a processor 101 that is designed to be the driver assistance system 100 or the motor vehicle 110a in a parking mode or in park mode, and a communication module 103 for communicating with a driver assistance system of a parked motor vehicle operated in parking mode.

The 2a -D show by way of example three parking motor vehicles 110b -D, with which the communication module 103 can communicate. The in the 2a Parked motor vehicles pictured 110b -D can each have a driver assistance system like the one in 1 illustrated driver assistance system 100 which in this case operates in park mode. Furthermore, the parking motor vehicle 110b and each one of the parked motor vehicles 110c . 110d a driver assistance system 100 include, or may only be the parked motor vehicle 110b a driver assistance system 100 include.

The processor 101 of in 1 illustrated driver assistance system 100 is designed to be in parking mode by means of the communication module 103 the driver assistance system of a parked motor vehicle, for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b To send a parking request to the driver assistance system of the parked motor vehicle 110b -D to arrange the parked motor vehicle 110b To proceed to a parking space for the requesting motor vehicle 110a to accomplish.

According to one embodiment, the driver assistance system is 100 trained, in park mode, so for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b -D, in response to receipt of the parking request, decide whether the distance to adjacent objects or other parked vehicles is large enough to create the parking space for the requesting motor vehicle.

According to one embodiment, the driver assistance system is 100 trained, in park mode, so for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b -D, in response to receiving the parking request in coordination with a driver assistance system 100 at least one further parking motor vehicle to decide whether the distance to adjacent objects or other parked vehicles is large enough to create the parking space for the requesting motor vehicle.

According to one embodiment, the driver assistance system is 100 trained, in park mode, so for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b -D, the requesting motor vehicle 110a to tell whether the distance to adjacent objects or other parked vehicles is large enough to create the parking space for the requesting motor vehicle.

According to one embodiment, the parking request may provide information about the dimensions of the requesting motor vehicle 110a contain.

According to one embodiment, the driver assistance system 100 Furthermore, a Nahfeldfassungssystem 105 include, as in the 1 illustrated embodiment is the case. In this case, the Nahfeldfassungssystem 105 be formed in the parking mode of the driver assistance system 100 , so for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b -D to determine the distance to adjacent objects or other parked vehicles.

According to one embodiment, the driver assistance system is 100 trained, in park mode, so for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b -D, an engine of the parked motor vehicle 110b -D to start and the parking vehicle 110b -D to proceed to the parking space for the requesting motor vehicle 110a to accomplish.

According to one embodiment, the driver assistance system is 100 trained, in park mode, so for example the driver assistance system 100 one of the in the 2a Parked motor vehicles pictured 110b -D, after the driver assistance system 100 the parked motor vehicle 110b -D to a parking space for the requesting motor vehicle 110a to create, and the requesting Kraftfahrzug 110a drove into the parking space, the parked motor vehicle 110b -D in the direction of the requesting motor vehicle 110a to proceed to the distance to the requesting motor vehicle 110a to reduce. In this case, the driver assistance system 100 be formed, the engine of the motor vehicle 110b -D switch off after the motor vehicle 110b -D has reached his target position.

According to one embodiment, the communication module 103 designed as a Car2X communication module. The communication module 103 may be configured to communicate via an ad hoc network communication technology, in particular an ITS G5 communication technology or a IEEE 802.11p based communication technology. The communication module 103 can with a CAN bus or a Flexray bus or a MOST bus or an Ethernet bus of the motor vehicle 110a -D be connected.

The 2a D, to which reference has already been made above, show schematic diagrams of the operation of the driver assistance system of 1 according to one embodiment during a parking operation. In 2a the motor vehicle passes 110a whose driver is looking for a parking space, the parked vehicles 110b c. In 2 B sends the driver assistance system 100 of the motor vehicle 110a , For example, at the behest of the driver, a parking request to the parked motor vehicle 110b , In response to the parking request will be in 2c the parked motor vehicle 110b such a procedure that a parking space is created, in which the requesting motor vehicle 110a can park.

In the in the 2a In the example shown, the parking spaces are arranged essentially parallel to the road. Of course, however, the invention can also be used advantageously there, where the parking spaces are arranged transversely to the road or at another angle thereto.

In the in the 2a In the example shown, the communication between the motor vehicle takes place 110a and the motor vehicle 100b , However, those skilled in the art will recognize that the present invention may also be used to advantage where the requesting motor vehicle 110a communicates with more than one parked motor vehicle, so in particular a parking request is sent to more than one adjacent parking motor vehicle, and the parking motor vehicles a suitable parking space for the requesting motor vehicle 110a negotiate.

3 shows a diagram of a method 300 for operating the driver assistance system 100 for a motor vehicle 110a , The process includes 300 one step 301 operating the driver assistance system 100 in a parking mode and a step 303 sending a parking request to the driver assistance system 100 a parked motor vehicle 110b -D, to the driver assistance system 100 of the parked motor vehicle 110b -D to arrange the parked motor vehicle 110b To proceed to a parking space for the requesting motor vehicle 110a to accomplish.

4 shows a method 400 for operating the driver assistance system 100 for a motor vehicle 110b d. The process includes 400 one step 401 operating the driver assistance system 100 in a parking mode, a step 403 receiving a parking request from a motor vehicle operated in a parking mode and a step 405 the method of operating in parking mode motor vehicle 110b -D, a parking space for the parked motor vehicle 110a to accomplish.

LIST OF REFERENCE NUMBERS

100

 Driver assistance system

101

 processor

103

 Car2X communication interface

105

 Nahfelderfassungssystem

110a-d

 motor vehicles

300

 method

301

 Operating the driver assistance system in parking mode

303

 Send a parking request

400

 method

401

 Operating the driver assistance system in parking mode

403

 Receiving a parking request

405

 Method of the motor vehicle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited non-patent literature

• IEEE 802.11p [0016]
• IEEE 802.11p [0037]

Claims (14)

Driver assistance system ( 100 ) for a motor vehicle ( 110a ) with: a processor ( 101 ), which is adapted to the driver assistance system ( 100 ) in a parking mode or in a parking mode; and a communication module ( 103 ) for communicating with a driver assistance system of a parked motor vehicle ( 110b -D) operating in park mode; the processor ( 101 ) is further configured, in the parking mode by means of the communication module ( 103 ) the driver assistance system of the parked motor vehicle ( 110b -D) send a parking request to the driver assistance system of the parked motor vehicle ( 110b -D) to cause the parked motor vehicle ( 110b (D) proceed to a parking space for the motor vehicle ( 110a ) to accomplish. Driver assistance system ( 100 ) according to claim 1, wherein the driver assistance system ( 100 ) in parking mode in response to receiving the parking request, decide whether the distance to adjacent objects or parked vehicles ( 110c , d) is large enough to cover the parking space for the motor vehicle ( 110a ) to accomplish. Driver assistance system ( 100 ) according to claim 2, wherein the driver assistance system ( 100 ) in parking mode in response to receiving the parking request in coordination with a driver assistance system of at least one further parking motor vehicle ( 110c (d) decide whether the distance to adjacent objects or parked motor vehicles ( 110c , d) is large enough to cover the parking space for the motor vehicle ( 110a ) to accomplish. Driver assistance system ( 100 ) according to claim 2 or 3, wherein the driver assistance system ( 100 ) is formed, in parking mode the motor vehicle ( 110a ), whether the distance to adjacent objects or parked motor vehicles ( 110c , d) is large enough to cover the parking space for the motor vehicle ( 110a ) to accomplish. Driver assistance system ( 100 ) according to one of the preceding claims, wherein the parking request information about the dimensions of the motor vehicle ( 110a ) contains. Driver assistance system ( 100 ) according to one of the preceding claims, wherein the driver assistance system ( 100 ) a Nahfeldfassungssystem ( 105 ). Driver assistance system ( 100 ) according to claim 6, wherein the near-field detection system ( 105 ) is formed, in parking mode of the driver assistance system ( 100 ) the respective distance to adjacent objects or parked motor vehicles ( 110c d) to determine. Driver assistance system ( 100 ) according to one of the preceding claims, wherein the driver assistance system ( 100 ) is formed, in parking mode an engine of the parked motor vehicle ( 110b -D) and the parked motor vehicle ( 110b (D) to remove the parking space for the motor vehicle ( 110a ) to accomplish. Driver assistance system ( 100 ) according to claim 8, wherein the driver assistance system ( 100 ) in park mode after the driver assistance system ( 100 ) the parked motor vehicle ( 110b -D) to a parking space for the motor vehicle ( 110a ), and the power train ( 110a ) has driven into the parking space, the parked motor vehicle ( 110b -D) in the direction of the motor vehicle ( 110a ) to the distance to the motor vehicle ( 110a ) to reduce. Driver assistance system ( 100 ) according to claim 8 or 9, wherein the driver assistance system ( 100 ) is formed, the engine of the motor vehicle ( 110b -D) after the motor vehicle ( 110b -D) has reached its target position. Driver assistance system ( 100 ) according to one of the preceding claims, wherein the communication module ( 103 ) is designed as a Car2X communication module. Procedure ( 300 ) for operating a driver assistance system ( 100 ) for a motor vehicle ( 110a ), the method comprising the following steps: operating ( 301 ) of the driver assistance system ( 100 in a parking mode; and send ( 303 ) a parking request to the driver assistance system of a parked motor vehicle ( 110b -D) to the driver assistance system of the parked motor vehicle ( 110b -D) to cause the parked motor vehicle ( 110b (D) proceed to a parking space for the motor vehicle ( 110a ) to accomplish. Procedure ( 400 ) for operating a driver assistance system ( 100 ) for a motor vehicle ( 110b -D), the method comprising the steps of: operating ( 401 ) of the driver assistance system ( 100 in a parking mode; Receive ( 403 ) a parking request from a motor vehicle operated in a parking mode ( 110a ); and method ( 405 ) of the motor vehicle operated in parking mode ( 110b D) to a parking space for the parked motor vehicle ( 110a ) to accomplish. Computer program with a program code for carrying out the method ( 300 ) according to claim 12 or of the method ( 400 ) according to claim 13, when the computer program is executed on a processor.

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