WO2016020092A1

WO2016020092A1 - Controlling a motor vehicle to prevent wrong-way driving

Info

Publication number: WO2016020092A1
Application number: PCT/EP2015/063389
Authority: WO
Inventors: Stefan Nordbruch
Original assignee: Robert Bosch Gmbh
Priority date: 2014-08-04
Filing date: 2015-06-16
Publication date: 2016-02-11
Also published as: DE102014215273A1

Abstract

A method for controlling a motor vehicle comprises a step of detecting an existing or imminent wrong-way driving situation of the motor vehicle, a step of outputting a signal to a motor vehicle driver, a step of monitoring a driver's reaction, and a step of bringing the motor vehicle into a safe condition if the driver fails to react.

Description

CONTROL OF A MOTOR VEHICLE FOR PREVENTING A TRAP

The invention relates to a technique for controlling a motor vehicle. In particular, the invention relates to a technique for avoiding damage in the control of a motor vehicle.

State of the art

A motor vehicle, in particular a passenger car, is usually moved on a road network. In order to relieve a driver of the motor vehicle, different assistants on board the motor vehicle are possible. For example, a longitudinal or lateral control can be influenced with appropriate assistants. Some of these assistants are highly automated and process a range of internal or external information while driving the vehicle.

For example, a function known as safe stop may be used to put the motor vehicle in a safe state after it has been determined that the driver of the motor vehicle is no longer fit to drive. For this purpose, the motor vehicle is preferably brought to a standstill at the edge of the roadway. Alternatively, a first

Stop position, about a parking lot, to be approached.

Despite the high level of sophistication of modern driving assistants, road accidents repeatedly result in accidents caused by the driver deliberately ignoring existing traffic regulations.

It is therefore an object of the present invention to provide an improved technique for controlling a motor vehicle. The invention achieves this object by means of a method, a computer program product and a device. tion with the features of the independent claims. Subclaims give preferred embodiments again.

Disclosure of the invention

A method for controlling a motor vehicle includes steps of detecting an existing or oncoming wrong-way driving of the motor vehicle, outputting a signal to a driver of the motor vehicle, monitoring a reaction of the driver and the motor vehicle in a safe state, if a reaction the driver fails.

As a result, it is possible to prevent the motor vehicle from performing a wrong-way drive, which threatens the occupants of the motor vehicle and also persons outside in health or life.

The wrong-way drive may in particular include driving on a motor vehicle road in an impermissible direction. This type of wrong-way is also known as a "ghost rider". In particular, on a road with fast traffic, such as a highway, can be caused by driving in the wrong direction an accident that can expose one or more vehicles significant destruction effect. The risk of personal injury is usually high. By bringing the motor vehicle into a safe state, this danger can be reduced or eliminated.

The wrong trip can be recorded by means of an on-board system. For this purpose, one or more of an optical system, a radar system, a navigation system or another system for position or environment control of the motor vehicle can be used.

In another variant, the trip is recorded by means of an external system. For example, one or more of a traffic monitoring system, another motor vehicle with sensors for sensing its surroundings or an external location system for the motor vehicle can be used. The two variants can also be combined with each other. Preferably, the wrong drive is detected by several systems. Thereby, a misjudgment can be prevented, in which a wrong travel is determined, although none exists or vice versa. When multiple systems are used, it is preferred that at least some of the systems be diverse. This means that such systems determine comparable results in different ways. In particular, it is preferred that the systems operate on different data. For example, different sensors can be used by the different systems. A probability of an error affecting several systems can be reduced as a result. The selectivity and judgment security of the combined systems can be increased thereby.

In another embodiment, it is not only checked whether there is any reaction of the driver, but also whether it is suitable for preventing or ending the wrong-way drive. If such a qualified reaction does not occur or if no reaction is observed, the motor vehicle can be put into a safe state. In a particularly preferred embodiment, a plurality of states of different security levels are predetermined, with the motor vehicle being moved to the next safest state, and the process is performed again if the described driver's response is absent. As a result, a decision latitude of the driver can be successively reduced, so that the motor vehicle can be successively secured in cooperation with the driver. For example, a maximum speed of the motor vehicle can be reduced in stages. Alternatively or in parallel, the lateral control of the motor vehicle can be restricted so that, for example, the motor vehicle can only be moved in the direction of a stationary strip, an escape point or a parking space. In a traffic with right-hand traffic, only a movement of the motor vehicle to the left can be made possible for this purpose. In left-hand traffic, the transverse movement of the motor vehicle can be restricted in directions to the right. By leaving at least part of the control to the driver, the effects of a possible mistiming of a wrong-way ride can also be reduced. The driver can in this case yourself initiate a safe state and take appropriate measures to correct the misidentification.

In a particularly preferred embodiment, a warning is issued before the wrong drive of the motor vehicle to an environment, if the above-described reaction of the driver does not occur. For example, by means of car-to-car communication (C2C) or car-to-infrastructure communication (C2I), a warning may be distributed to the motor vehicle. In another embodiment, on-board means may be used to alert the vehicle. For example, a lighting can be switched on, a hazard warning lights activated and a signal generator (horn) are pressed. In this way, for example, pedestrians or cyclists can be warned in front of the vehicle. In yet another embodiment, a corresponding alert, such as an emergency call, may be delivered to a central entity via an eCall system. The central authority can then take measures to warn or evacuate other road users in the area of the motor vehicle.

A computer program product comprises program code means for carrying out the described method when the computer program product runs on a processor or is stored on a computer-readable medium.

An apparatus for controlling a motor vehicle comprises a detection system for detecting an existing or imminent wrong-way driving of the motor vehicle, an output device for outputting a signal to a driver of the motor vehicle, a monitoring device for monitoring a reaction of the driver and a control device for moving the motor vehicle into a safe Condition, if there is no reaction from the driver.

The detection system may be located on board the motor vehicle or externally. In an external detection system, the on-board part may include a detection data acquisition means of the external detection system.

Brief description of the figures The invention will now be described in more detail with reference to the attached figures, wherein:

1 is a schematic representation of a motor vehicle with a control device and

FIG. 2 is a flow chart of a method of controlling the motor vehicle of FIG. 1. FIG.

Detailed description of embodiments

Fig. 1 shows a schematic representation of a device 100 on board a motor vehicle 105. The motor vehicle 105 is located on a motor road 1 10, wherein in the present illustration, due to a traffic rule 1 15, which is symbolically expressed by a road sign, only one use in a predetermined direction is allowed. The motor vehicle 105 moves against this direction or use against the permissible direction is imminent. For example, the motor road 1 10 may include a highway or highway exit.

On-board the motor vehicle 105 is an optional system for determining wrong-way travel such as the present wrong-way travel on the motor vehicle road 1 10. The on-board system 120 includes one or more scanning devices for sensing a condition of the motor vehicle 105 or an environment of the motor vehicle 105 These sensors may comprise one or more of an optical or radar sensor 125, a position determining device 130 or a receiving device 135. By means of the receiving device 135 wireless signals of another motor vehicle, a stationary service or another device can be received. These signals contain data that are used to determine the wrong drive of the motor vehicle 105. For this purpose, a processing device 140 is provided on board the motor vehicle 105. The processing device 140 preferably comprises a programmable microcomputer. In addition or as an alternative to the on-board system 120, an external system 145 for detecting the wrong-way drive of the motor vehicle 105 may be provided. The external system 145 may include, for example, one or more sensors 150 for scanning the road traffic in a predetermined section and a transmitting device 155 for communicating with the receiving device 135 of FIG

Motor vehicle 105 include. The external system 145 may be stationary, for example in the case of automatic traffic control. In another embodiment, however, external system 145 may also be mobile, such as aboard one or more other vehicles, or external system 145 may include stationary and mobile components.

The systems 120 and 145 may be used singly or in parallel. Each of the systems 120, 145 may also be provided multiple times or redundantly. In particular, it is preferred that a plurality of systems 120, 145 are provided internally or externally, which in different ways a

Determining the wrong course of the motor vehicle 105 perform. One speaks of diverse systems.

The processing device 140 is equipped with an output device 160 for outputting a signal to a driver of the motor vehicle 105 if the

Wrong travel of the motor vehicle 105 has been determined. The output can be acoustically, optically, haptically or in a combination thereof. Furthermore, the processing device 140 is connected to one or more monitoring devices 165 in order to monitor a reaction of the driver to the signal of the output device 160 or the situation of the wrong-way travel of the motor vehicle 105. For this purpose, in particular one or more operating elements of the motor vehicle 105 can be scanned, for example a steering wheel, a gas or brake pedal or an operating element for an on-board system of the motor vehicle 105.

The processing device 140 is further connected to one or more control devices 170 for transferring the motor vehicle 105 to a safe state. The control device 170 can, in particular, perform a longitudinal control of the motor vehicle 105 by influencing a drive motor 175 or a brake 180. Alternatively or additionally, a lateral control of the motor vehicle 105, in particular by influencing a steering kung, be performed. The control device 140 may be embodied integrated with the processing device 170.

The processing device 140 is preferably also set up to issue a corresponding warning in the event of a wrong-way drive of the motor vehicle 105. This warning may be transmitted wirelessly, for example if the receiving device 135 at the same time comprises a transmitting device, or one or more onboard systems of the motor vehicle 105 such as a lighting system 185, a hazard warning lights or a horn (not shown) can be used for the output of the warning , In another preferred embodiment, a data recorder 190 is provided which is activated by the processing device 140 when the wrong-way drive of the motor vehicle 105 has been determined to record environmental or driving parameters of the motor vehicle 105 for the purpose of later analysis.

2 shows a flowchart of a method 200 for controlling the motor vehicle 105 of FIG. 1. At least parts of the method 200 are configured to run in particular on the processing device 140 of the motor vehicle 105.

In a step 205, the motor vehicle 105 is monitored by the on-board system 120. This step can be performed several times, in particular in parallel, for example by means of several systems 120, as described above. In a subsequent step 210 it is checked whether from the monitoring data to a present or imminent wrong-way of

Motor vehicle 105 can be closed. If this is not the case, this part of the method 200 can begin again with the step 205. Otherwise, a warning is issued to the driver of the motor vehicle 105 in a step 215 by means of the output device 160.

In parallel to the steps 205 and 210 or alternatively to these, a corresponding monitoring by means of the external system 145 can take place in steps 220 to 230. For this purpose, in a step 220, the monitoring of the motor vehicle 105 is performed by means of the external system 145, wherein the step 220, such as the step 205, can be performed several times by different external systems 145. In a step 225, the step 210 corresponds, it is checked whether a wrong trip exists. If this is not the case, then this part of the method 200 can start again with the step 220. Otherwise, a message indicative of the wrong-way driving of the motor vehicle 105 is transmitted to the motor vehicle 105 in a step 230.

The findings of the internal system 120 and the external system 145 can also be compared or compared with one another in a further embodiment, in order to allow the most accurate determination of a wrong-way travel of the motor vehicle 105.

In a step 235 following the step 215, it is checked whether a reaction of the driver to the output signal or the present wrong travel of the motor vehicle 105 is recognizable. Preferably, it is additionally checked in a step 240 whether a detected reaction of the driver can be regarded as expedient for the transfer of the motor vehicle 105 to a safe state. This provision can also be made after the exclusion procedure. For example, accelerating the motor vehicle 105 is usually not expedient for the transfer to the safe state. If the reaction is expedient, the method 200 may be terminated or run again.

Otherwise, if no or no effective response could be detected, a security level of the driving state of the motor vehicle 105 is increased in a step 245. In a simple embodiment, this means that the motor vehicle 105 is immediately brought to a safe state. This condition may include parking the motor vehicle. In one embodiment, a suitable Abstellort is determined under predetermined conditions. In another embodiment, different states are defined, to each of which a security level is assigned. For example, driving with the motor vehicle can be made safer by reducing its speed. Another way of increasing the security level of the motor vehicle 105 may be to restrict the lateral control to certain maneuvers. If the motor vehicle 105 is already on a motor vehicle road opposite to a prescribed direction of travel, then it can be effected that the motor vehicle can only be moved in the direction of a stationary strip. Thus, the motor vehicle 105 be repeatedly transferred to a safe state in several passes of the method 200 and the step 245, respectively.

In a step 250, a signal may also be provided to an environment that indicates the potential danger of the motor vehicle 105 in the event of a wrong-way travel. In addition, a recording of driving or environmental data of the motor vehicle 105 can be effected for the purpose of securing evidence. Thereafter, the method 200 may run again.

Claims

claims

1 . A method (200) for controlling a motor vehicle (105), the method (200) comprising the steps of:

- detecting (210, 225) an existing or imminent wrong-way driving of the motor vehicle (105);

- outputting (215) a signal to a driver of the motor vehicle (105);

- monitoring (235) a driver's reaction and

- Spend (245) of the motor vehicle (105) in a safe state, if a response from the driver is absent.

2. The method (200) of claim 1, wherein the wrong drive includes driving on a motor vehicle (1 10) in an inadmissible direction.

3. The method (200) according to claim 1 or 2, wherein the wrong drive by means of an on-board system (120) is detected.

4. The method (200) according to one of the preceding claims, wherein the wrong drive is detected by means of an external system (145).

5. The method (200) according to one of the preceding claims, wherein the wrong drive is detected by a plurality of systems (120, 145).

The method (200) of claim 5, wherein the systems (120, 145) are diverse.

A method (200) according to any one of the preceding claims, wherein the motor vehicle (105) is placed in the safe state (145) when there is no response from the driver (240) capable of preventing or terminating the wrong trip.

8. The method (200) according to any one of the preceding claims, wherein a plurality of states of different security levels are predetermined, the motor vehicle (105) is moved to the next safer state and the method (200) is performed again.

A method (200) according to any one of the preceding claims, wherein a warning (250) is issued prior to the wrong-way drive of the motor vehicle (105) to an environment.

10. Computer program product with program code means for performing the method (200) according to any one of the preceding claims, when the computer program product runs on a processing device (140) or is stored on a computer-readable medium.

1 1. Device (100) for controlling a motor vehicle (105), comprising the following elements:

- A detection system (120, 145) for detecting an existing or imminent wrong-way driving of the motor vehicle (105);

- Output means (160) for outputting a signal to a driver of the motor vehicle (105);

- A monitoring device (165) for monitoring a reaction of the driver and

- A control device (175, 180) for the movement of the motor vehicle (105) in a safe state, if a reaction of the driver is absent.