WO2001037239A1

WO2001037239A1 - System for automatically stopping a motor vehicle

Info

Publication number: WO2001037239A1
Application number: PCT/AT2000/000305
Authority: WO
Inventors: Hans-Christian Daxerer; Peter Sokoll; Josef Zeller
Original assignee: Daxerer Hans Christian; Peter Sokoll; Josef Zeller
Priority date: 1999-11-15
Filing date: 2000-11-15
Publication date: 2001-05-25
Also published as: AT409313B; AU1371501A; ATA191799A

Abstract

The invention relates to a system for automatically stopping a motor vehicle (1) that travels on a road (3). The motor vehicle (1) is provided with a receiver (2) and a transmitter (4) is located in the area of the road (3), preferably at the verge of the road. The receiver (2) comprises a unit for detecting a sender signal (8, 9) emitted by the transmitter and a unit for disrupting the travel operating state (7) of the motor vehicle (1). When the sender signal is detected, the unit for disrupting the travel operating state (7) brings the traveling motor vehicle (1) to a stop.

Description

System for automatically stopping a motor vehicle

The invention relates to a system for automatically stopping a motor vehicle traveling on a roadway.

Known systems of this type are in most cases designed to brake the vehicle that is in full motion or to bring it to a standstill. Such a measure is useful if, for example, a vehicle erroneously moving in the wrong direction of travel is to be automatically prevented from continuing its journey in order to avoid possible damage to persons or vehicles. Driving in the wrong direction on motorways in particular can have disastrous consequences, so that e.g. Drivers who are mentally impaired due to the effects of alcohol or drugs, so-called ghost drivers, must be prevented from driving on the motorway in the wrong direction.

Mechanical locking devices arranged on the road that are triggered with the aid of a vehicle motion sensor and e.g. Bringing the vehicle to a standstill by destroying the car tires is only of limited use, as the release of the locks is prevented or delayed in extreme weather conditions, such as in snow or on icy roads. Another disadvantage of the mechanical locks is the increased risk of accidents, since the vehicles that are disabled to continue driving are no longer able to move and rear-end accidents can occur due to oncoming, properly departing vehicles. Due to the very complicated mechanical structure of the mechanical locks, the manufacturing and maintenance costs are correspondingly high. Furthermore, any release of the locks at least results in the destruction of tires that have to be replaced. In the event of incorrect triggering, the system operator is liable for the damage incurred.

The object of the invention is to provide a system of the type mentioned, which is inexpensive to manufacture and maintain and which does not cause damage to the motor vehicle.

Another object of the invention is to provide a system with which the stopping of motor vehicles traveling in the wrong direction can be ensured with a high degree of safety.

According to the invention, this is achieved in that a receiving device is arranged in or on the motor vehicle and a transmitting device is arranged in the area of the road, preferably at the edge of the road, and in that the receiving device has a unit for detecting a transmitted signal emitted by the transmitting device and a unit for interrupting the driving mode of the vehicle Motor vehicle comprises, wherein upon detection of the transmission signal, the unit for interrupting the driving mode causes the moving motor vehicle to stop. The system according to the invention ensures the automatic stopping of the moving vehicle without destroying components of the same, but rather by interrupting the units required for driving. On the one hand, this significantly reduces the risk of accidents for the ghost driver who is traveling in the wrong direction and for oncoming drivers, since the vehicle remains maneuverable and the driver at risk after he has recognized his wrong behavior by pressing a delete button or by acknowledging one of the handheld transmitters emitted infrared impulse can be restarted by authorized persons of the road supervision or the executive. The costs are about 2% of a mechanical lock, for example a claw device designed for the destruction of tires, and are thus significantly lower than in conventional systems, the operational capability of the system according to the invention being given in all weather conditions. The main area of application of the invention is in the area of securing freeway exits and parking lot exits and entrances and securing distances of up to at least 250 km / h against ghost drivers, but with sufficient widespread use of the system it could also be used, for example, to prevent drivers from driving Stop sending a transmission signal automatically. For this purpose, road inspection bodies could have portable transmission devices which could be used to stop the motor vehicle in question.

For vehicles from abroad, mobile reception devices with an additional acoustic warning device can be provided in the passenger compartment. The receiving device, e.g. a phototransistor can be positioned on the right passenger door using a magnet.

In a development of the invention it can be provided that the transmission signal is an electromagnetic transmission signal.

The entire spectrum of electromagnetic radiation available can be used for the transmission signal to be emitted.

In a further embodiment of the invention it can be provided that the receiving device comprises an optical receiver connected to a receiving circuit and the transmitting device comprises an optical transmitter connected to a transmitting circuit.

By means of the optical transmitter and the optical receiver matched to it, the transmission signal can be emitted in a precisely defined area, so that false triggering in other motor vehicles is not possible.

A particularly safe triggering of the driving interruption results in a further development of the invention when the optical receiver is formed from at least one infrared photo transistor and the optical transmitter is formed from at least one infrared light-emitting diode. A system according to the invention equipped with infrared light transmitters and receivers enables operation unaffected by stray light.

According to a further embodiment of the invention, it can be provided that the receiving device - as seen in the direction of travel - the right side of the vehicle and the transmitter device - as seen in the correct direction of travel - are arranged on the left edge of the road.

This arrangement prevents false triggering in the case of vehicles leaving a motorway in the correct direction.

According to a further embodiment of the invention, the optical receiver of the receiving device can be arranged inside the right-hand side turn signal lamp of the vehicle. Accommodation at this point enables the receiving device to make optical contact through the cover glass of the turn signal lamp with the optical transmitting device and at the same time protect against mechanical damage.

Another variant of the invention may consist in that a receiving device is arranged on both the right and the left side of the vehicle.

In this way, the security with which the detection of a vehicle moving in the wrong direction of travel can be carried out can be increased.

Furthermore, it can be provided that the optical transmitter is composed of a plurality of infrared light-emitting diodes, the main beam directions of which are each offset from one another by a predeterminable angle in the roadway plane.

In this way, a larger angular range can be covered by the transmission device when the transmission signal is emitted, which results in a higher trigger reliability.

According to a further embodiment of the invention, four mutually vertically offset infrared light-emitting diodes can be provided, the main emission direction of which is rotated by 72 °, 84 °, 96 ° and 108 ° with respect to the longitudinal direction of the road. This results in a large overlap of the light intensity emitted in an angularly offset radiation orientation.

According to a further embodiment of the invention, the unit for interrupting the driving operating state can be connected to a warning device which generates an optical and / or acoustic warning signal when the driving operating state is interrupted. As a result, the automatic stopping of the vehicle is recognizable both for the driver of the stopped vehicle and for the driver of the oncoming vehicle.

Furthermore, a further embodiment of the invention can consist in that the warning device puts the headlights in a flashing state when the driving operating state is interrupted, which brings about an increased signal effect. In a development of the invention, the optical receiver of the receiving device can be magnetically adhered to the body of the vehicle. Motor vehicles originating from abroad can thus be upgraded very quickly, for example at the border, with a receiving device of the system according to the invention. In addition, a device for acoustically warning foreign passengers inside the vehicle can be provided.

Finally, it can be provided that the transmitter device as a mobile unit, e.g. is designed as a mobile column or as a hand transmitter. In this way, when the mobile unit is activated, e.g. B. stopped by a police officer performing a traffic control.

Another variant of the invention can consist in that a further transmission device is arranged in the motor vehicle and another reception device is arranged in the area of the roadway, and that data can be transmitted to the further reception device via the further transmission device.

This makes it possible to transmit data from the moving vehicle to the stationary, further receiving device. This data can be used for further use, e.g. be forwarded to the nearest police station, for example to enable rapid identification of the stopped vehicle.

According to a further embodiment of the invention, the receiving device and the further transmitting device can be equipped with a data storage unit, e.g. a reader for data carriers such as chip cards, transponder cards, magnetic and optical data carriers.

Data stored therein can be read out from the data storage unit and transmitted while driving to the further receiving device located in the lane area. In this way, driving authorizations for lanes can also be checked.

A secure transmission of data from the moving motor vehicle to the roadway area can be carried out in that the further transmitting device is designed as an infrared transmitting device and the further receiving device as an infrared receiving device.

The area of application of the system according to the invention can be further increased by the fact that the further receiving device arranged in the area of the roadway has one or more interfaces for transmitting and evaluating data, such as e.g. Vehicle count data, vehicle identity data, speed measurement data, speed control data, data relating to the determination of distances traveled by the motor vehicle, road data, command data or the like.

It can further be provided that the further receiving device can be connected via the interface to a satellite in orbit around the earth. This enables very extensive monitoring of vehicles and forwarding of data transmitted from the vehicles. In order to avoid the emission of a scatter signal, it can further be provided that the transmitting device arranged in the area of the roadway is at least partially surrounded by infrared light-absorbing walls in order to concentrate the transmitted infrared beam or to limit it to a specific roadway area.

Another suitable measure for shielding against interference can be that the infrared light-absorbing walls are arranged in a tunnel shape around the transmitter device.

It can also be provided in accordance with a further embodiment of the invention that the transmitting device and / or the further receiving device are embedded in the carriageway, the receiving device and / or the further transmitting device being arranged on the underside of the motor vehicle. The infrared radiation directed at the motor vehicle thus has to travel only a very short distance from the motor vehicle and is therefore only subject to minor disturbances from the environment. The probability of detecting a motor vehicle at full speed can be increased in this way.

In a further embodiment of the invention it can be provided that the transmission device is arranged in a unit surrounding the roadway in a tunnel shape, the transmission device distributing the transmission signal at a plurality of locations along the tunnel-shaped cross section, each radiating in the direction of the roadway.

As soon as the motor vehicle passes through the tunnel-shaped section, infrared rays are directed at it from all sides, which thus cover a very large angular range and with which the detection of a receiving device attached to the vehicle is possible with a high degree of certainty.

The invention is explained in detail below on the basis of the exemplary embodiments illustrated in the drawings. It shows

Fig.la a schematic plan view of a road section with an embodiment of the system according to the invention;

Fig.lB is a schematic plan view of a road section with a further embodiment of the system according to the invention;

IC shows a schematic plan view of a road section with a further embodiment of the system according to the invention;

2 shows a schematic illustration of the signal intensity emitted into the surroundings by a transmitting device;

3 shows a block diagram of an embodiment of the receiving device of a system according to the invention;

4 shows a circuit arrangement of part of an embodiment of the receiving device; 5 shows a circuit arrangement of a further part of the embodiment according to FIG. 4;

6 shows a circuit arrangement of an embodiment of the transmission circuit of the system according to the invention;

7 shows a circuit detail of the circuit arrangement according to FIG. 6 and

8 shows an amplitude-time diagram of the output signal of the circuit detail according to FIG. 7.

Fig.la shows part of a highway 5, which can be driven by vehicles in the direction of an arrow 20. The vehicles departing from this freeway 5 enter the local road network via a carriageway 3 of a freeway exit, and they depart from the freeway 5 in the direction of the arrows 21. Motorway exits are naturally one-way streets and can therefore only be used in one direction. Due to various causes and despite existing street signs, a small percentage of motorists, so-called ghost drivers, believe that they are traveling in the correct driveway, contrary to the correct direction of travel 21, on the motorway. In bad weather or at night, they do not notice the driving error and get on the Autobahn 5 unhindered, where they are very likely to cause a traffic accident with vehicles driving on the Autobahn 5, whose drivers do not expect vehicles to drive in the wrong direction. In order to prevent this, a system for automatically stopping a motor vehicle 1 traveling in the wrong direction on the road 3 is provided.

According to the invention, a receiving device 2 is arranged in or on the motor vehicle 1, and a transmitting device 4 is arranged in the region of the roadway 3, preferably at the edge of the roadway. The receiving device 2 comprises a unit for detecting a transmission signal 8, 9 emitted by the transmitting device and a unit for interrupting the driving operating state 7 (FIG. 3). When the transmission signal is detected, the unit for interrupting the driving operating state 7 brings the motor vehicle 1 to a stop. Furthermore, the unit for interrupting the driving operating state 7 is connected to a warning device 6, which generates an optical and / or acoustic warning signal when the driving operating state is interrupted.

Automatic stopping can be controlled in various ways. The electrical ignition, the fuel supply can be interrupted by means of a solenoid valve, or other units that maintain the driving operation can be deactivated. These functional units are not shown in Figure 3.

In the exemplary embodiments shown, the optical transmitter is formed from an infrared light-emitting diode and the optical receiver from an infrared phototransistor. Alternatively, other types of transmitter and receiver units can also be used. The entire spectrum of electromagnetic radiation available can be used for the transmission signal to be emitted. It an optically visible, a radio or microwave signal can be emitted by the transmitter 4, the receiver must be correspondingly sensitive to this radiation. However, acoustic signals, for example in the ultrasound range, can also be used to transmit the transmission signal.

The receiving device 4 is arranged on the right-hand side of the vehicle, as seen in the direction of travel, and the transmitting device 2 is arranged on the left-hand side of the lane, as seen in the correct direction of travel. This rules out that the receiving device 2 of a vehicle which is traveling correctly in the direction 21 is illuminated by the transmitting device 4. Any other arrangement of the transmitting and receiving device can of course also be made.

The receiving device 2 comprises an optical receiver 9 connected to a receiving circuit 8 and the transmitting device 4 an optical transmitter connected to a transmitting circuit 40. The optical receiver 9 of the transmitting device 2 is preferably arranged within the right-hand side turn signal lamp of the vehicle 1.

If the vehicle 1 arrives in the transmission area of the transmission device 4 indicated by the broken line in FIG. 1 and the transmission signal emitted by the optical transmitter hits the reception device 2, the motor vehicle 1 is automatically stopped by one or more units of the vehicle 1 necessary for maintaining driving operation be deactivated. In addition, when the driving operating state is interrupted, an acoustic or visual warning can be given to the driver and to the surroundings so that they are informed of the stopped vehicle.

The transmitting device 4 is accommodated in a housing on the roadside (distance approximately 2 m), which has, for example, a cover pane which is transparent to infrared light, through which the transmitting device 4 can emit its infrared light.

As an alternative to this, a receiving device can be arranged both on the right and on the left side of the vehicle, with corresponding sending devices also having to be provided on both road edges.

The power supply of the transmitter device is carried out by a solar battery e.g. with 12V and 6.6 Ah, which is fed via a thin-film solar module.

In order to increase the sensitivity of the system according to the invention, several optical transmitters are accommodated in one housing.

The optical transmitter is preferably composed of a plurality of infrared light-emitting diodes 81, 82, 83, 84 (FIG. 6), the main beam directions of which are each offset from one another by a predeterminable angle in the roadway plane.

According to the embodiment shown in FIG. 2, four infrared light-emitting diodes 81, 82, 83, 84 which are offset in height relative to one another are provided, their Main emission direction is rotated by 72 °, 84 °, 96 ° and 108 ° with respect to the longitudinal direction of the road.

Each optical transmitter 81, 82, 83, 84 transmits in its main emission direction with the highest intensity. In an angular range around this main emission direction, this maximum intensity decreases towards zero. Because of their arrangement, the individual transmitters overlap in their emitted intensities.

FIG. 2 shows the resulting, fanned range of action of the transmission device 4, which in the exemplary embodiment shown is arranged at a distance of approximately 2 m from a road edge 99. In the upper part of Figure 2, the resulting total effects of the optical transmitter are given in percent. The special overlapping arrangement of the transmitters 81, 82, 83, 84 triples the effectiveness of the transmitter device in certain angular ranges. While the vehicle 1 drives past the transmitting device 4, the receiver 9 of the receiving device 2 runs through the entire angular range of the emitting transmitting device 4. Depending on the angular range in which the motor vehicle 1 is located, one or more transmitters 81, 82, 83, 84 emit the transmission device 4 simultaneously sends its transmission signal to the receiver 9 of the reception device 2.

The selectivity of this arrangement can be increased by assigning a separate transmission channel to each of the four transmitters, wherein each transmission channel can be formed by a different modulation of the emitted light. Accordingly, the receiver 9 of the receiving device 2 receives these four transmission channels and activates one of four relays depending on the transmission channel.

1B, the transmission device can also be set up between two freeway lanes 5, 5 'and emit onto both lanes 5, 5', so that ghost drivers can be automatically stopped on both lanes 5, 5 '. This form of route protection helps to counteract the continued driving of a motor vehicle that has only been turned on the motorway. Suicides or similar motives, e.g. Test of courage, gambling or the like, intended trips by a motor vehicle driver are effectively prevented from driving in the wrong direction.

In Fig. IC, security for a parking space 50 is shown, on which a vehicle 1 had been parked. If the handlebar of the vehicle 1 due to disorientation, e.g. Because of the influence of alcohol or fatigue, drive from the parking lot in the wrong direction onto the Autobahn 5, there are two options shown in Fig.lc. Both ghost driver variants can be stopped automatically by means of a transmission device 4 positioned in front of the first entrance to the parking lot 50.

4 shows a possible embodiment of a detection circuit 8 with an optical IR receiver 9 and an infrared preamplifier 30, which is connected to an integrated detection circuit 33, in which the received transmission signals are detected when a threshold voltage is exceeded, whereby at the Outputs via control transistors T4, T3, T2, Tl corresponding to the number of channels four relays 15, 16, 17, 18 are connected, which switch contacts 25, 26, 27 and 28, which when activated each relay 15, 16, 17, 18 one in Fig. 4 Close active circuit, not shown. All relay contacts are connected in parallel and therefore close this active circuit independently of each other. If two or three of these relays 15, 16, 17, 18 are activated at the same time, then all of the relay contacts controlled by these close the active circuit, which increases the safety against tripping.

5 shows the active circuit in detail, in which a total of six relays 41, 42, 43, 44, 45, 46 are connected in series with the parallel-connected relay contacts 25, 26, 27, 28. As a result, all relays 41, 42, 43, 44, 45, 46 are activated when one or more of the contacts 25, 26, 27, 28 are closed. The number of relays 41, 42, 43, 44, 45, 46 is not subject to any restrictions. These can control different functions. Relay 41 closes a self-holding contact 51 which, after the relays 41, 42, 43, 44, 45, 46 have been tightened, ensures that these continue to tighten even after the vehicle 1 has passed through the effective range of the IR transmitter device 4 and the contacts Keep 51, 52, 53, 54, 55, 56 closed. When the button 47 is pressed, it opens and the relays 41, 42, 43, 44, 45, 46 drop out. It is therefore possible to restore the operational state of the vehicle 1 via this button 47. When activated, the relay 42 closes the contact 52, which interrupts the ignition circuit of the vehicle 1, as a result of which the vehicle 1 comes to a standstill.

The driver of the vehicle 1, who is now aware of his incorrect orientation, is able to park his vehicle 1 on the side of the road so that he no longer drives in the direction of the highway 5, thereby preventing him from becoming a ghost driver.

Relay 43 activates a flasher relay 63 via its contact 53. Left and right headlights 61, 62 of vehicle 1 are controlled via relays 44, 45, 46 and their contacts 54, 55, 56 and signal the oncoming vehicle that the wrong one Roadway stopped vehicle. The turn signal relay 63 causes the headlights 61, 62 to light up intermittently, as a result of which oncoming vehicles are made aware of the vehicle 1 that is automatically stopped on the road. This type of headlight control ensures safe operation of the headlights 61, 62 and also the hazard warning device when the headlights are on and off, or when the low beams are on.

Another relay could block the fuel supply of vehicle 1 via a solenoid valve and thus also bring the vehicle to a standstill.

6 shows an embodiment of a transmission device 4 in which infrared light-emitting diodes 81, 82, 83, 84 are controlled as optical transmitters by an integrated transmission circuit 75. Inputs 14, 15, 16, 17 of this transmission circuit are connected to a clock generator circuit 47 (FIG. 7) which is known per se and which is one in FIG. 8 WO 01/37239 PCT / AT0O / OO305

10

Rectangular economy shown generated, which can be changed via a potentiometer R2 in their duty cycle. Capacitor Cl determines the frequency of the square wave signal. A suitable modulation of the light emitted by the IR light-emitting diodes can be carried out via this fed-in square-wave voltage.

Coding units 89, 91 are connected both to the circuit 75 (FIG. 6) and to the circuit 33 (FIG. 4), which means that only an infrared beam modulated with a matching coding can deactivate the vehicle 1. An unauthorized stopping of the vehicle can thus be avoided.

As can be seen from FIG. 6, all four infrared light-emitting diodes 81, 82, 83, 84 are controlled via the same output 8 of the circuit 75, so that the same signals are emitted via them. It would of course also be possible to transmit four differently coded transmission signals and to control the relays 25, 26, 27, 28 completely independently of one another. Likewise, all the circuit variants indicated are to be understood in such a way that they can also be implemented in a microprocessor-controlled form. In the selected embodiment, the four light-emitting diodes point in different directions and the signals emitted in the process are received and detected by an optical receiver 9. The angular distribution of the intensity achieved in this way activates one or more relays 25, 26, 27, 28, depending on the current position of the receiver 9, and thus initiates the interruption of travel in the motor vehicle 1.

In addition, a further transmission device, e.g. an infrared transmitter, and in the area of the lane 3 another receiver, e.g. an infrared receiving device can be arranged so that data can be transmitted to the further receiving device via the further transmitting device. This increases the possible uses of the system according to the invention and makes it possible to ascertain information about the vehicle incorrectly driven onto a roadway without further delay. For this purpose the receiving device 2 and the further transmitting device are equipped with a data storage unit, e.g. a reader for data carriers, such as chip cards, transponder cards, magnetic and optical data carriers or the like. Connected.

Depending on the application, the data can thus be transferred to the data storage unit, from where it can be called up via the further receiving device. In this context, it is conceivable that by purchasing a chip card, the entitlement to participate in the system according to the invention for automatically stopping a motor vehicle is acquired.

For efficient data transmission, the further receiving device arranged in the area of the roadway can have one or more interfaces for transmitting and evaluating data, such as, for example, vehicle counting data, vehicle identity data, speed measurement data, speed control data, data relating to the determination of Motor vehicle covered distances, road data, command Include data or the like. The data retrieved or determined via the data storage unit or via corresponding measuring devices can thus be passed on to further units via the interface (s) of the further receiving device at the roadside. In particular, for wide-area surveillance of areas, the further receiving device can be connected via the interface to a satellite that is in orbit around the earth, as a result of which very rapid forwarding and management of determined data is possible.

Further measures to improve the performance of the system according to the invention may consist in the fact that the transmitting device 4 arranged in the area of the roadway 3 is at least partially surrounded by walls absorbing infrared light in order to bundle the transmitted infrared beam or to place it on a specific roadway area narrow. Interference on the transmitter device can thus be kept low. The infrared light-absorbing walls are preferably arranged in a tunnel shape around the transmitting device 4.

A further possibility of keeping the interference interference low can be to let the transmitting device 4 and / or the further receiving device into the lane 3. A motor vehicle traveling over this point on the roadway can be detected if the receiving device 2 and / or the further transmitting device are arranged on the underside of the motor vehicle 1. Due to the short distance that can be achieved between the transmitting and receiving device, interference from outside can be kept low.

A measure to emit the emitted infrared rays in such a way that the infrared rays also strike a receiving device attached to a position of the vehicle that cannot be reached from the roadside in a direct line can be designed as follows.

The transmission device 4 is arranged in a unit surrounding the roadway 3 in a tunnel shape, the transmission device 4 distributing the transmission signal at a plurality of locations along the tunnel-shaped cross section, each in the direction of the roadway 3. A vehicle moving through the tunnel-shaped section can thus be irradiated with infrared light transmission beams from above and from the side.

Claims

PATENT CLAIMS

1. System for automatically stopping a motor vehicle traveling on a roadway, characterized in that a receiving device (2) and in the region of the roadway (3), preferably at the edge of the roadway, a transmitting device (4) are arranged in or on the motor vehicle (1), and that the receiving device (2) comprises a unit for detecting a transmission signal (8, 9) emitted by the transmitting device and a unit for interrupting the driving mode (7) of the motor vehicle (1), the unit for interrupting the driving mode being detected when the transmission signal is detected (7) stops the moving motor vehicle (1).

2. System according to claim 1, characterized in that the transmission signal is an electromagnetic transmission signal.

3. System according to claim 1 or 2, characterized in that the receiving device (2) comprises an optical receiver (9) connected to a receiving circuit (8) and the transmitting device (4) comprises an optical transmitter connected to a transmitting circuit (40) ,

4. System according to claim 1, 2 or 3, characterized in that the optical receiver from at least one infrared phototransistor (9) and the optical transmitter from at least one infrared light-emitting diode (81, 82, 83, 84) are formed.

5. System according to any one of claims 1 to 4, characterized in that the receiving device (2) on the - seen in the direction of travel - right side of the vehicle (1) and the transmitter (4) - seen in the direction of the right direction of travel (21) - are arranged on the left edge of the lane.

6. System according to claim 5, characterized in that the optical receiver (9) of the receiving device (2) within the right, side turn signal lamp of the vehicle (1) is arranged.

7. System according to any one of claims 3 to 6, characterized in that a receiving device is arranged both on the right and on the left side of the vehicle.

8. System according to one of claims 3 to 7, characterized in that the optical transmitter is composed of a plurality of infrared light-emitting diodes (81, 82, 83, 84), the main beam directions of which are arranged offset from one another in each case by a predeterminable angle in the roadway plane.

9. System according to claim 8, characterized in that four mutually vertically offset infrared light-emitting diodes (81, 82, 83, 84) are provided, the main emission direction of which is rotated relative to the longitudinal direction of the carriageway by 72 °, 84 °, 96 ° and 108 °.

10. System according to any one of the preceding claims 1 to 9, characterized in that the unit for interrupting the driving operating state (7) is connected to a warning device (6) which generates an optical and / or acoustic warning signal when the driving operating state is interrupted.

11. System according to any one of the preceding claims, characterized in that the warning device (6) puts the headlights (61, 62) in a flashing state when the driving mode is interrupted.

12. System according to any one of the preceding claims 3 to 11, characterized in that the optical receiver of the receiving device (2) is magnetically adhered to the body of the motor vehicle (1).

13. System according to one of the preceding claims, characterized in that the transmitting device as a mobile unit, e.g. is designed as a mobile column or as a hand transmitter.

14. System according to any one of the preceding claims, characterized in that in addition in the motor vehicle (1) a further transmitting device and in the region of the road (3) a further receiving device are arranged, and that data can be transmitted to the further receiving device via the further transmitting device.

15. System according to claim 14, characterized in that the receiving device (2) and the further transmitting device are connected to a data storage unit, for example a reader for data carriers such as chip cards, transponder cards, magnetic and optical data carriers.

16. System according to claim 15, characterized in that the further transmitting device is an infrared transmitting device and the further receiving device is an infrared receiving device.

17. System according to one of the preceding claims, characterized in that the further receiving device arranged in the area of the roadway (3) has one or more interfaces for the transmission and evaluation of data, such as Vehicle count data, vehicle identity data, speed measurement data, speed control data, data relating to the determination of distances traveled by the motor vehicle (1), road data, command data or the like.

18. System according to claim 17, characterized in that the further receiving device can be connected via the interface with a satellite located in an earth orbit.

19. System according to any one of the preceding claims, characterized in that the transmitting device (4) arranged in the region of the carriageway (3) is at least partially surrounded by walls absorbing infrared light in order to bundle the transmitted infrared beam or around it to narrow down a certain lane area.

20. System according to claim 19, characterized in that the infrared light absorbing walls are arranged in a tunnel shape around the transmitting device (4).

21. System according to any one of the preceding claims, characterized in that the transmitting device (4) and / or the further receiving device are embedded in the carriageway (3).

22. System according to one of the preceding claims, characterized in that the receiving device (2) and or the further transmitting device are arranged on the underside of the motor vehicle (1).

23. System according to one of the preceding claims, characterized in that the transmitting device (4) is arranged in a unit surrounding the roadway (3) in a tunnel-shaped manner, the transmitting device (4) distributing the transmission signal at a plurality of locations along the tunnel-shaped cross section, in each case in Direction on the road (3) emits.