DE102009028299A1 - Method for determining most probable driving path of car, involves using additional data of device i.e. signal light, which influences actual traffic situation, for correction of original driving path - Google Patents

Abstract

The method involves determining an original driving path (12) of a motor vehicle (8) under consideration of driving probability data, which is provided by a road map. Additional data of a device i.e. infrastructure device e.g. signal light, which influences actual traffic situation (2), is used for correction of the original driving path. Data about an actual existing, partial limitation of a trafficability of the road is provided to a module (10), where the data about the trafficability is utilized by the module, which is arranged in a motor vehicle. An independent claim is also included for an arrangement for determining most probable driving path of the vehicle.

Description

The The invention relates to a method and an arrangement for determining a most probable route.

State of the art

navigation systems calculate a possible driving path based on driving probabilities, stored in electronically available map data are. As a rule, this road leads in the direction of next higher street category. For now There is no automobile function, the most likely one Track ("Most Probable Path", MPP) uses because With active navigation, a destination input is made and thus the most probable route between a start and destination with an appropriate route inevitably is known and / or can be easily calculated.

A method and a device for determining a detour route for a motor vehicle with a navigation system are disclosed in the document DE 10 2006 004 616 A1 known. It is provided that the navigation system determines a probability for a further travel path and thereby determines whether there is a traffic incident on the planned further travel path. In this case, a suitable bypass route is calculated and output in dialogue with the driver of the motor vehicle. For this purpose, traffic information is used to determine the traffic incident, which are received via a car radio of the motor vehicle. This method is useful if no destination is specified for the navigation system.

In the publication DE 103 59 283 A1 An in-vehicle navigation system for searching a route to a destination based on map data is described. This navigation system also includes congestion information obtaining means for obtaining road congestion information associated with the route. To determine the route in addition to the road congestion information also incurred search costs are taken into account.

A device for searching a route is the subject of this document EP 933 615 A1 , Here, routes are determined taking into account side roads. With this device, it is still possible to determine a geometry of a traversed curve.

A navigation system for determining a deviation of a vehicle from a map-based route is from the document US 2006/047423 A1 known.

Disclosure of the invention

In front In this background, an arrangement and a method with the Characteristics of the independent claims presented. Further embodiments of the invention will become apparent from the pending Claims and the description.

With the invention is u. a. a correction of an original one Routes taking into account extended data and thus provided by extended information. This correction is usually done by updating an original one Routes based on data of a usually static road map based.

at an implementation of the method, for example, information is used by communicating with facilities that control the traffic directly or indirectly. this concerns a C2X communication between a vehicle and a facility in general, C2I communication between a vehicle and a vehicle Infrastructural facility and / or a C2C communication between Vehicles. Taking into account this information the data becomes the information from the static road map dynamically adapted to a current prevailing traffic situation.

The Data is provided to the at least one module by the institutions, which actively or passively affect traffic depending on the definition. The traffic actively influencing facilities are usually as movable road users, d. H. Vehicles, trained. Traffic-affecting facilities can immovable infrastructure facilities, such as traffic signs such as But traffic lights are also construction sites that provide traffic through deployments information about a traffic situation and / or through it Influence presence. All facilities inform about a current traffic situation in which they have the provided data over Signals, usually via electromagnetic waves, radiate. Accordingly, the institutions provide information about the current traffic situation ready. A traffic information service can also be considered as a potential means of deployment of information, the traffic information service however, can not actively influence a traffic situation.

In order to determine the most probable route, data are taken into account which provide information as to how far a road is currently freely accessible, at least partially or possibly not passable. Such different levels of driveability are influenced, inter alia, by facilities that act as closures, typically caused by construction sites, are formed.

A usual MPP determination to provide the original driving path takes place under consideration of a routing towards the next higher street category. A categorization of roads may be according to their size respectively. This is how a highway becomes the highest classified, followed by a freeway, a federal highway, a country road, a county road and an as Main street trained local road, in turn Follow side roads. In the context of the invention, the to be provided most likely lane, for example by data from infrastructure facilities, changed. This data can be z. By sensors, which are arranged in the facilities, the current traffic flows and transmitted to the module of the vehicle. Probabilities of the respective driving paths can of calculated in the module. It's also possible also incorporate probabilities from forecasting models allow.

alternative or in addition, with sensors of the vehicle other vehicles are detected. For this purpose, the so-called. Car-to-car communication (C2C) at least one kinematic variable, d. H. the position and / or speed as well as the trajectory, evaluated the preceding and possibly also subsequent vehicles become. It can also have its own driving maneuver of the vehicle over a Operation of the turn signal by the driver etc. included become.

at Blocking, z. B. because of a construction site, a main road All vehicles are diverted via a side street. One prior art MPP calculation is the presence the site is not known, which is why it is assumed that the driver according to a static navigation over a driving path the closed road is recommended.

at a variant of the MPP calculation according to the invention is the module the likelihood of bypassing the construction site It is known that the module provides the said data. The dynamic recognition of the current traffic situation can thereby carried out with at least one of the following procedures become.

So is it possible that an infrastructure facility, e.g. B. a traffic light connected to contact loops within the roadway is, recognizes that the largest share of all vehicles follows a specific route. This information is from the infrastructure facility is sent as data to modules of the vehicles.

From an infrastructure facility designed as a construction site, can be considered as data information to a due to the Construction site resulting, at least partially blocking a road and explicitly sent to at least one recommended redirect become.

When Data can continue to have information about Tracking or tracking of vehicles in front and their driving paths are transmitted.

In In one variant, the driver of the vehicle can use the turn signal of the vehicle towards an alternative road, the original one Driving path is not considered, press. An information about that an actuation of the turn signal can be used as a date in the process become.

The Vehicle can drive on a lane that is not the original one Driving path follows. This is z. B. then the case when a turn in a straightforward original driving paths or a straight-ahead driving with turning original track is made. A derived from the position of the vehicle Information can also be used as a date to correct the driving path be used.

at that of the infrastructure, for example, by measuring, determined and transmitted Data are details of known traffic flows. The Data may be at least one branch relating to road traffic. This results in a full blockage a road that has no traffic flow in the direction of travel this road is present. Such current traffic flows You can also by evaluating data from others Vehicles to be determined.

With The invention results u. a. that a calculation of traffic and / or driver-dependent driving paths possible becomes. A use of automotive features that require navigation need, but without a fixed destination input, is also possible. This applies z. For example, for a common driven route for which the driver does not enter a destination performs. Reducing miscalculations increases performance or increase in performance of automotive functions for determination of driving paths possible, if different from a conventional, original route results in a deviation. Through this improved possibility of a preview are functions to congestion avoidance and environmentally friendly driving way much better realizable.

In embodiment, for Fahrzeugfunktio NEN improved foresight or predictions about a driver's request of the driver are provided. For example, a so-called "green wave assistant" can be informed which forward path the driver is driving in order to display or include the correct traffic lights if the driver wants to turn, for example, after the first traffic light.

With According to the invention, it is possible to have a future one Road path for automotive functions available even if no navigation is activated and no destination is present. A conceivable implementation of the invention can be achieved by a self-learning System done.

in the Framework of the invention is provided with data about a current Traffic situation provided by various sources of information starting from the original track of the am soonest probable route is calculated and thus determined. These Sources of information may provide modules for providing Condition information of the vehicle, eg. As the turn signal or steering movement, be.

at An embodiment of the invention will be the closest probable driving path (MPP) by calculation of a navigation software of the Vehicle optimized, so he meets the actual desire the driver from the outset corresponds. This can be done without additional Expenditure of the driver happened. Such is typically a destination input not required in the navigation device. Alone through that Measuring or observing the traffic, the route can be changed become. If, for example, it is determined that all vehicles at one it can turn into a certain spot on the road Offer themselves in an embodiment of the invention, all the other vehicles to follow. This can be done by an external infrastructure, z. As a traffic light with contact loop and camera or by your own Vehicle done. Also by the own driver behavior of the Track be adapted accordingly, z. B. by actuation of the turn signal or choice of a particular lane. With external infrastructures also probabilities from forecasting models, z. B. from traffic control centers or fixed values transmitted become.

The Module in the vehicle with the most probable driving path is typically one designed as an antenna Receiving device connected. The antenna receives from the other bodies influencing the traffic situation, Signals with provided data and forwards them to the module for further evaluation. The devices have antennae Transmitting devices, on the data, for example. Sensory be determined, can be shipped.

The described arrangement is adapted to all Perform steps of the presented method. there Individual steps of this procedure can also be done by individuals Components of the arrangement are performed. Farther can functions of the arrangement or functions of individual Components of the arrangement implemented as steps of the process become. Besides, it is possible that steps of the method as functions of individual components of the arrangement or the entire arrangement can be realized.

Further Advantages and embodiments of the invention will become apparent from the Description and the accompanying drawings.

It it is understood that the above and the following yet to be explained features not only in each case specified combination, but also in other combinations or can be used in isolation, without the scope of the present To leave invention.

Brief description of the drawings

1 shows a schematic representation of a first embodiment of a method according to the invention in a first traffic situation.

2 shows a schematic representation of a second embodiment of a method according to the invention in a second traffic situation.

embodiments the invention

The The invention is based on embodiments in the drawings schematically illustrated and will be described below with reference to the drawings described in detail.

1 shows a schematic representation of a first traffic situation 2 with a main road 4 and a side street 6 , On the main street 4 there is a vehicle 8th in which a first embodiment of a module 10 is arranged, which is formed as part of an inventive arrangement for carrying out a first embodiment of a method according to the invention.

In the embodiment of the method according to the invention initially an original driving path 12 (broken arrow) in consideration of driving likelihood data provided by a typically electronic road map. This original track 12 follows in the described embodiment in the direction 14 a higher-grade road that here by a sign 16 is indicated in the direction of a highway.

However, this is done in an embodiment of the invention by the module 10 a correction of the original driving path 12 , In addition, internal data of at least one device, which is the current traffic situation 2 influenced, namely the vehicle 8th itself, used. The said data result from a driver's request of the driver of the vehicle 8th by activating a direction indicator designed as a turn signal 18 provided. Based on this, a most probable driving path becomes 20 (solid arrow) to which the vehicle 8th follows, determined. This most likely roadway 20 results from turning off the main road 4 and thus a higher-value road on a lower-value road, namely the side road 6 ,

A second traffic situation 30 is in 2 indicated. Again, this is a main road 32 pictured, which is a side street 34 crosses. At a crossroads of the main street 32 and the side street 34 there is an infrastructure facility 36 that a traffic light system 38 and a tracking mark having a left turn lane 40 , a straight-line track 42 and a right-turn lane 44 includes. It is envisaged that in the road surface for each of the mentioned traffic lanes 40 . 42 . 44 sensors 46 for the detection of passing vehicles 48 are arranged. Thus, data on a current traffic volume in the context of the current traffic situation 30 determined and from the traffic light system 38 as a component of the infrastructure facility 36 via radio waves or electromagnetic waves 50 to be provided.

In the present case is located in a continuation of the main road 32 one as a construction site 52 trained facility. Data on the presence of the construction site 52 including data for a recommended detour (sign 54 ) are also provided by the infrastructural facility 36 provided.

It is alternatively or additionally possible that the data on the construction site 52 through communication between the construction site 52 as an infrastructure facility and the vehicle 48 to be provided.

In the implementation of the basis 2 In the embodiment of the method shown, an original driving path is also determined in consideration of driving likelihood data provided by a road map. However, the commonly used driving likelihood data include only static information about a structure of a traffic network. Short-term changes with regard to trafficability of roads are not taken into account by such road maps. In the context of the method, a correction is made to the originally provided travel path taking into account additional data about the current traffic situation, which in this case is influenced by at least one device that influences the current traffic situation, namely the infrastructure facility 36 and / or the construction site 52 , to be provided. The most probable route of the procedure 56 for the vehicle 48 is shown here as a dotted arrow.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102006004616 A1 [0003]
• - DE 10359283 A1 [0004]
• - EP 933615 A1 [0005]
• US 2006/047423 A1 [0006]

Claims (8)

Method for determining a most probable travel path ( 20 . 56 ) of a vehicle ( 8th . 48 ) by at least one in the vehicle ( 8th . 48 ) module ( 10 ), where an original track ( 12 ) is determined in consideration of driving likelihood data provided by a road map, and in which for correcting the original driving path ( 12 ) additional data from at least one institution, which is an actual traffic situation ( 2 . 30 ) are used. Method according to Claim 1, in which data is used which is assigned to the at least one module ( 10 ) of at least one device designed as a further road user, provided by communication and by the module ( 10 ) be used. Method according to Claim 1 or 2, in which data is used which corresponds to the at least one module ( 10 ) of at least one entity designated as an infrastructure ( 36 ), provided by communication and by the module ( 10 ) be used. Method according to one of the preceding claims, in which data are used which are assigned to the at least one module ( 10 ) of the vehicle ( 8th . 48 ) as the at least one device is provided by communication and by the module ( 10 ) be used. Method according to one of the preceding claims, in which data about a currently present, at least partial restriction of a trafficability of a road is assigned to the module ( 10 ) by communication and by the module ( 10 ) be used. Method according to claim 5, wherein the data of be provided to at least one institution that has the restriction Trafficability caused at least partially. Method according to one of the preceding claims, in which, in order to provide the original driving path ( 12 ) a higher-categorized road of a lower-categorized road is preferred. Arrangement for determining a most probable travel path ( 20 . 56 ) of a vehicle ( 8th . 48 ) containing at least one vehicle-mounted module ( 10 ), wherein the at least one module ( 10 ) is adapted to an original track ( 12 ) in consideration of driving likelihood data provided by a road map, and to correct the original driving path ( 20 . 56 ) additional data from at least one institution, which is an actual traffic situation ( 2 . 30 ) to use.

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