US20180233040A1 - Method for handling a control card - Google Patents

Method for handling a control card Download PDF

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Publication number
US20180233040A1
US20180233040A1 US15/514,689 US201515514689A US2018233040A1 US 20180233040 A1 US20180233040 A1 US 20180233040A1 US 201515514689 A US201515514689 A US 201515514689A US 2018233040 A1 US2018233040 A1 US 2018233040A1
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US
United States
Prior art keywords
control card
vehicles
vehicle
information
matching procedure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/514,689
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English (en)
Inventor
Bastian Zydek
Thomas Grotendorst
Enno Kelling
Stefan Lüke
Marc Menzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co OHG
Original Assignee
Continental Teves AG and Co OHG
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Filing date
Publication date
Application filed by Continental Teves AG and Co OHG filed Critical Continental Teves AG and Co OHG
Assigned to CONTINENTAL TEVES AG & CO. OHG reassignment CONTINENTAL TEVES AG & CO. OHG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LÜKE, Stefan, KELLING, ENNO, GROTENDORST, THOMAS, MENZEL, MARC, ZYDEK, BASTIAN
Publication of US20180233040A1 publication Critical patent/US20180233040A1/en
Abandoned legal-status Critical Current

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Classifications

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    • G08G—TRAFFIC CONTROL SYSTEMS
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    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
    • G—PHYSICS
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    • G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
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    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
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    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096775—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a central station
    • G—PHYSICS
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    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096791—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is another vehicle
    • G—PHYSICS
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/161—Decentralised systems, e.g. inter-vehicle communication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60W2420/40—Photo or light sensitive means, e.g. infrared sensors
    • B60W2420/403—Image sensing, e.g. optical camera
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2555/00—Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
    • B60W2555/60—Traffic rules, e.g. speed limits or right of way
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2556/00—Input parameters relating to data
    • B60W2556/20—Data confidence level
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2556/00—Input parameters relating to data
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2556/00—Input parameters relating to data
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2556/00—Input parameters relating to data
    • B60W2556/45—External transmission of data to or from the vehicle
    • B60W2556/65—Data transmitted between vehicles

Definitions

  • the invention relates to a method for handling a control card containing traffic regulations in a vehicle.
  • Traffic regulations are currently usually defined by generally applied rules such as give way to the right, traffic signs, light signals or by traffic police.
  • Individually steered vehicles such as motor vehicles or bicycles, rail vehicles such as trams and also pedestrians, are able to avoid potential collisions and accidents by following these rules. This applies to right-of-way rules for example, but also to other traffic regulations such as no overtaking, for example.
  • traffic regulations are usually read by the driver or pedestrian from road signs, light signals or traffic police or are determined from the specific traffic conditions.
  • a driver can tell in the absence of road signs at an intersection that the basic rule of giving way to the right applies. He can deduce from other vehicles at the intersection whether he has right-of-way or not, i.e. has to give way if necessary. If the driver sees a member of the traffic police, he can also tell whether he is allowed to drive on or not.
  • the driver can determine from the laws of the country whether a merging vehicle should in principle wait for a gap in the flowing traffic, or whether the merging vehicle is given priority.
  • an aspect of the invention aims to provide an alternative, for example improved, method for handling traffic regulations. This is achieved according to the invention by a method according to claim 1 .
  • Advantageous configurations can be taken for example from the dependent claims. The content of the claims is incorporated into the content of the description by explicit reference.
  • An aspect of the invention relates to a method for handling a control card containing traffic regulations in a motor vehicle, which comprises the following step:
  • a traffic rule or control card can be received by another vehicle.
  • this is only one possible area of application of the method according to the invention. Numerous other applications are possible, for example such as those described further below.
  • control card is particularly advantageous because such a card is not restricted to including the traffic regulations for one's own vehicle, but can also contain traffic regulations applicable to other road users, in particular vehicles.
  • the conditions are set for taking into account not only the traffic regulations applicable to oneself but also those that apply to other road users.
  • the received control card can be used directly in the vehicle or it can also be compared with a control card created in the vehicle itself or obtained from another source. For example, this can be performed as described below.
  • Traffic regulations can be defined in particular as a right-of-way or give way and no overtaking. Other traffic regulations can also be processed by means of the method according to the invention, for example speed limits or stopping restrictions.
  • a control card is defined in particular as a set of traffic regulations, which are assigned for example to a situation to be regulated and/or to a road section or area to be regulated.
  • a control card can contain traffic regulations that correspond with one another, for example right-of-way rules for each road and each driving direction of several roads which cross at an intersection, or right-of-way rules for a motorway and an access lane onto the motorway.
  • the traffic regulations should correspond with one another so that by observing the traffic regulations a collision between the vehicles involved is avoided. For example, this can mean at an intersection that both directions of a continuous road have right-of-way, whilst both directions of a crossing road have to give way.
  • this can mean that priority is given to the continuous traffic or the merging traffic.
  • this can mean that with two-way traffic a temporary no overtaking rule is established, for example no overtaking a slow-moving vehicle such as a lorry or an agricultural vehicle.
  • a control card can be used for example to display to the driver the traffic regulations contained therein on the instrument panel or in a head-up display. It can however also be used for example for an autonomous driving system or for an assistance system, for example.
  • a junction can also be defined in particular as an access lane onto a motorway.
  • An intersection can also be defined as a roundabout or any other branching or merging of roads.
  • the traffic regulations contained on the control card are assigned to the intersection or junction, in particular right-of-way and give way.
  • the method is performed such that the vehicle sends a message to another vehicle that receives a request to transmit a control card.
  • the following vehicle can send the request for transmitting a control card, in particular relating to the proposal of collaborating in an overtaking procedure, whereby in said proposal the slow-moving vehicle can communicate to following vehicles that it is able to collaborate with the planning of an overtaking procedure.
  • a proposal can be received for example by the vehicle performing the method according to the invention.
  • the method is repeated continually, in particular it is repeated periodically for continual synchronisation.
  • the vehicles involved can continually exchange control cards, in particular by means of vehicles communicating by means of direct or indirect radio connection, which are involved in a situation requiring regulation, in particular in order to identify any problems, for example control cards that do not correspond or match, as early as possible and prevent accidents.
  • the method can also be performed such that a vehicle continually sends its respective control card, regardless of whether it is received by another vehicle or another unit.
  • a measure of reliability can relate for example to the quality of sensors of the transmitting vehicle and thus indicate how reliable the control card is, for example whether the road signs or intersection topologies have in fact been correctly identified.
  • the method also comprises the following steps:
  • Control cards that do not match are defined in particular as control cards, which display for at least one actually present or only for a possibly present vehicle at least two different traffic regulations.
  • two non-matching control cards can be designed such that one control card indicates right-of-way for a specific road at an intersection in a specific direction, whereas the other control card indicates to give way.
  • Matching control cards typically indicate for all possible vehicle locations the same traffic regulations respectively.
  • a communication can be sent to an external unit such as other vehicles or a central server, the communication indicating that the control cards match. This indicates that the intersection can be passed on the basis of the matching control cards without risk by all of the vehicles involved.
  • the additional control card is produced by means of the following steps:
  • Environmental surroundings can include for example an intersection, a number of road signs, a number of light signals, a number of further vehicles or other road users, a junction and/or a road. They can also include a specific situation that requires regulation, for example when a slow-moving vehicle identifies oncoming traffic that prevents overtaking by following vehicles.
  • the environmental sensors can comprise a number of cameras, for example. However, they can also consist of other environmental sensors, for example ultrasound sensors, radar devices, car-to-X-communication means or mobile network communication means. By means of a camera, intersection topologies, road signs, junctions or oncoming vehicles, for example, can be identified.
  • traffic regulations can be identified from road signs or intersection topologies. From an identified road sign, for example right-of-way, give way or STOP, the corresponding traffic rule can typically be directly derived. From an identified intersection topology without road signs the basic rule can be defined as right-before-left, wherein with reference to other identified vehicles, a traffic rule can be derived for one's own vehicle. A right-of-way rule can be determined from an identified junction or access road, taking into consideration the local laws and regulations. From the identified oncoming vehicles it is possible to derive a no overtaking rule for following vehicles.
  • the control card is typically produced in that firstly the directly derived rules, for example from an identified right-of-way sign, are written onto the control card and then corresponding compulsory traffic regulations are written onto the control card.
  • a right-of-way of one's own vehicle can correspond with a give way rule for crossing traffic, as otherwise there would be a risk of an accident.
  • the right-of-way of a vehicle driving on the motorway can correspond with a give-way rule for a merging vehicle.
  • control cards By comparing control cards in particular it is possible to check whether the control card corresponds with other control cards or produces a consistent image together with other control cards. This means in particular that the control cards contain traffic regulations which result in the least possible risk of accident.
  • control cards produced by different vehicles for example by means of respective environmental sensors.
  • the additional control card is received by a central server.
  • a central server supports the vehicles with the management and exchange of control cards.
  • the vehicle and other vehicles are involved in the matching procedure that are approaching an intersection or junction or that are driving on the same road.
  • the vehicle and other vehicles are involved in the matching procedure that are approaching an intersection or junction or that are driving on the same road.
  • only those vehicles are involved in the matching procedure from which an intersection of respective trajectories has been calculated.
  • the matching procedure is performed by the repeated direct exchange and comparison of control cards and/or plausibility information between the vehicles involved, until all of the vehicles involved have an identical control card or until a predefined number of repetitions has been reached.
  • Plausibility information can include for example accompanying information, for example about reliabilities. For example, it can relate to the information or data already described above. Information about reliabilities, for example from environmental sensors, can be used, for example, to give priority to specific control cards or to attribute greater importance to them, if they have been generated using particularly reliable sensors.
  • a comparison of control cards and/or plausibility information includes a respective plausibility check, wherein a plausibility check preferably comprises one or more of the following steps
  • respective control cards can be evaluated and/or modified, so that a control card is formed that can use all of the vehicles involved or that applies to all vehicles. If identical information is available from a plurality of vehicles, this information typically has a greater degree of reliability, so that it can be taken into particular consideration when creating a common control card. The same can apply to more significant and/or more reliable information.
  • Complementary information is defined in particular as information which can be taken over without any changes into a single control card, without thereby increasing the risk of collision of vehicles complying with said control card.
  • this can consist of complementary information in the case of a right-of-way for a road and give way for a crossing road and complementary traffic regulations.
  • An image can be defined for example as a control card. This can also include a differently represented assessment of a traffic situation or a road topology. An image has consistent content in particular when the respective traffic regulations correspond with one another, so that the probability of collision when observing the traffic regulations or a control card created from the latter cannot be increased and/or is minimal.
  • the matching procedure can be performed both in the vehicle that has triggered the matching procedure, in particular as explained above, or also in every other vehicle involved.
  • the method is thus, particularly in this case, not restricted to being performed in one vehicle. It can for example also be a method which is performed distributed over several vehicles.
  • a control card is formed from the matching procedure, which is sent to a number of other vehicles.
  • the method for performing the matching procedures also comprises a step of identifying a blockage.
  • a blockage is defined in particular as a situation in which a plurality of vehicles are moving towards one another or are arranged such that it is not possible to define a clear right-of-way rule. This may be the case for example when four vehicles from different directions are approaching an intersection where the right-before-left rule applies and reach the intersection at the same time.
  • a control card is created and/or determined
  • An impasse is defined in particular as a situation in which none of the vehicles has right-of-way a priori.
  • the term giving way is defined in particular to mean that a vehicle foregoes its possible right-of-way on its own accord, the giving way being preferably communicated to the other vehicles involved.
  • the method in the case of a blockage or impasse the method performs a step of identifying whether giving way is appropriate, and in the case of giving way a message is sent about giving way to the other vehicles involved.
  • a master unit is specified which takes over the formation of a control card valid for all vehicles. In this way, it is possible to avoid a plurality of iterations between the vehicles. Rather it is possible to concentrate on the process of creating a control card on a vehicle, which then sends the control card to the other vehicles.
  • the method also comprises a step of sending a confirmation to the master unit and/or to other vehicles involved in the matching procedure after receiving a control card from the master unit.
  • the master unit is determined from the vehicles involved in the matching procedure, preferably by using one or more of the following criteria:
  • Suitable indicators can be provided for criteria such as quality or driving experience.
  • Counters can be provided for criteria such as the number of requirements as master unit in the past.
  • Special action rights can in fact include particular rights that are taken advantage of, for example speeding when an ambulance or fire engine is responding to an emergency.
  • Right-of-way features can be provided independently of their actual utilisation, for example when an ambulance is not responding to an emergency and is adhering to the traffic regulations.
  • a road side unit can be in particular an electronic device which is arranged near a road and is designed to communicate with vehicles.
  • a road side unit of this kind in particular the relevant functionality, can be provided here as a master unit.
  • vehicles that are not the master unit perform one or more of the following steps:
  • the master unit performs one or more of the following steps:
  • the master unit performs steps which are used for creating the joint control card and/or for improving the processing of a control card in a vehicle.
  • Rights-of-way or priorities should preferably correspond with one another, which can mean in particular, that the respective rights-of-way or priorities or traffic regulations derived from the latter result in the lowest possible risk of accident.
  • the method comprises a step of terminating the matching procedure.
  • control card or the additional control card is received via a radio connection, in particular in a car-to-X-message.
  • confirmations can also be sent or transmitted via a radio connection, in particular in a car-to-X-message.
  • the method also comprises a step of sending information, in particular about control cards and/or traffic regulations, to following or other road users, wherein said sending step is repeated continually or performed in response to a situation that has been controlled in the past.
  • control card and/or the additional control card are assigned to
  • an aspect of the invention also relates to a device for performing the method according to the invention.
  • a device for performing the method according to the invention.
  • a device can be an electronic control device, which comprises processor means and storage means, a program code being stored in the storage means, whereby the method according to the invention is performed in this embodiment.
  • a control device of this kind can also be integrated into another device for example, such as in a control device for automatic driving or driver assist systems.
  • the invention also relates to a non-volatile computer-readable storage medium, which contains program code, in which embodiment a method according to the invention is performed by a processor.
  • an aspect of the invention relates to a system consisting of a number of vehicles, wherein each vehicle is designed to perform a method according to the invention, and wherein the vehicles are designed to communicate with one another, in particular for performing the method according to the invention and in particular by using car-to-X-communication.
  • the method according to the invention it is possible to access all of the described embodiments and variants.
  • FIG. 1 shows a situation to be regulated at an intersection
  • FIG. 2 shows a situation to be regulated on a road.
  • FIG. 1 shows an intersection 10 at which a first road 12 and a second road 14 cross at right angles.
  • a first vehicle 20 is driving towards the intersection 10 .
  • a second vehicle 22 is moving in the opposite direction on the other side of the intersection 10 , wherein the latter is also driving towards the intersection 10 .
  • a third vehicle 24 is driving transversely to the latter, which is also approaching the intersection 10 .
  • the vehicles 20 , 22 , 24 are only shown schematically. Respective arrows indicate the driving directions.
  • the first vehicle 20 identifies the traffic situation to be regulated first, as it determines by means of satellite navigation and electronic road card that it is driving towards an intersection and also identifies by means of a camera that other vehicles are also approaching the intersection. By means of the camera the first vehicle 20 also identifies the give way sign, which tells the first vehicle 20 that it does not have right-of-way.
  • the control card includes the traffic rule “give way” for the first vehicle 20 .
  • the traffic rule “give way” for the first vehicle 20 .
  • the give way traffic rule is also included for the second vehicle. It is also known that at such intersections crossing traffic has right-of-way, when a specific vehicle has to give way. Therefore, the traffic rule “right-of-way” is also entered for the third vehicle 24 and for the opposite direction.
  • the generated control card which contains the previously mentioned traffic regulations in a specific generally known format, is then transmitted from the first vehicle 20 by car-to-X-communication means and received by the other vehicles 22 , 24 .
  • the latter also create their own control card by means of respective cameras in the same way as previously described.
  • Said self-created control cards are compared with the control card received from the first vehicle 20 . If the control cards match, the respective vehicles 22 , 24 send a confirmation to the first vehicle 20 that the control cards match and thus for all vehicles 20 , 22 , 24 it is possible to pass the intersection 10 without any risk by using identical control cards.
  • the traffic rules contained in the common control card are displayed for the attention of the respective drivers of the vehicles 20 , 22 , 24 .
  • control cards do not match with one of the other vehicles 22 , 24 , for example because one of the vehicles 20 , 22 , 24 has not correctly identified a road sign as it is covered with snow, a matching procedure is initiated.
  • a matching procedure is initiated.
  • the latter there are in principle two possible embodiments, which are both described in the following with reference to FIG. 1 .
  • the vehicles 20 , 22 , 24 carry out a cooperative matching procedure.
  • the control cards are exchanged with one another in a plurality of iterative steps and evaluated in the vehicles 20 , 22 , 24 respectively.
  • information is evaluated which relates to the reliability of the respective camera, by means of which the control card has been created.
  • a traffic regulation is considered more reliable if a greater numbers of vehicles have identified the latter independently of one another.
  • a vehicle is specified as the master unit of vehicles 20 , 22 , 24 , to which all of the information about the control cards and their creation is sent as previously mentioned.
  • the master unit can be defined as the vehicle which has been the master unit the least often according to an internal counter.
  • the vehicle determined as the master unit evaluates the available information and creates a common control card for the attention of all vehicles.
  • Said common control card is sent to the other vehicles, which send out a confirmation of receipt and possibly also an acceptance receipt.
  • the traffic regulations contained in the common control card are selected so that they are complementary to one another, i.e. so that in particular it is possible for all vehicles 20 , 22 , 24 to pass the intersection 10 without colliding. These rules are displayed to the respective drivers of the vehicles 20 , 22 , 24 .
  • FIG. 2 shows a single-lane road 16 , on which vehicles are driving in both directions. This consists of a first vehicle 20 which is following a second vehicle 22 , and a third vehicle 24 travelling in the opposite direction.
  • the second vehicle 22 is here a slow-moving lorry. Therefore, the first vehicle 20 has a reason for overtaking the second vehicle 22 .
  • the second vehicle 22 being a commercial vehicle, is equipped with better sensors, in particular a better camera than the other vehicles 20 , 24 . Furthermore, it has a better field of vision over the road 16 than the following first vehicle 20 . Therefore, the second vehicle 22 sends information to the first vehicle 20 , in which it shows that can be of assistance in performing an overtaking procedure.
  • the driver of the first vehicle 20 would like to perform an overtaking procedure, he activates a button provided in the first vehicle 20 . With this the intention to overtake is sent in a message to the second vehicle 22 . The latter then detects with its camera the environmental situation in front of him and identifies the oncoming third vehicle 24 , which will clearly stand in the way of the overtaking procedure of the first vehicle 20 .
  • the second vehicle 22 then creates a control card, which contains a temporary no overtaking rule for the road 16 . Said control card is sent by the second vehicle 22 to the first vehicle 20 , which receives said control card and determines that, due to the temporary no overtaking rule, it is currently not possible to undertake an overtaking procedure. This is displayed to the driver of the first vehicle 20 , so the latter is requested not to perform the planned overtaking procedure. A collision with the third vehicle 24 is effectively avoided in this way.
  • car-to-X-communication is defined in particular as direct communication between vehicles and/or between vehicles and infrastructure devices.
  • it can consist of car-to-car communication or car-to-infrastructure communication.
  • car-to-X-communication can be performed in principle for example as part of a car-to-car-communication, which is typically performed without communication through a mobile network or similar external infrastructure and which therefore should be differentiated from other solutions, which are based on a mobile network for example.
  • car-to-X-communication can be performed by using the standard IEEE 802.11p or IEEE1609.4.
  • a car-to-X-communication can also be referred to as C2X-communication.
  • the sub-areas can be denoted as C2C (car-to-car) or C2I (car-to-infrastructure).
  • embodiments of the method are possible in at least one of its variants for example in which only one vehicle identifies the traffic regulations, creates a control card from the latter and then sends it for the immediate attention of other vehicles. Said vehicles then receive the control card and use it without additional checking. Preferably, they can confirm the receipt and/or acknowledgment. It is also possible for all of the vehicles involved to receive respective control cards from a central server.
  • a method according to the invention can also be performed for example by vehicles or with the involvement of vehicles, which do not have environmental sensors such as for example cameras, RADAR or LIDAR.
  • vehicles can approach an intersection or another location to which rules need to be applied, which is also being approached by other vehicles, which have environmental sensors.
  • Vehicles without environmental sensors typically cannot produce a control card, but can still participate in a matching procedure or matching step and contribute to providing a generally accepted and/or used control card.
  • a method according to the invention can be used in principle for all kinds of vehicles.
  • it can be used for freely steerable or also automatically driving vehicles such as for example cars, lorries, buses or emergency vehicles.
  • vehicles such as for example cars, lorries, buses or emergency vehicles.
  • railed vehicles for example for example trams or even normal trains.
  • vehicles which are operated by human or animal muscle power or in special vehicles such as for example in vehicles used for transport within plants, for example forklift trucks.
US15/514,689 2014-10-10 2015-10-08 Method for handling a control card Abandoned US20180233040A1 (en)

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CN107111947A (zh) 2017-08-29
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