GB2500312A - Warning of potential collision of an object with a stationary automobile's door - Google Patents

Warning of potential collision of an object with a stationary automobile's door Download PDF

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Publication number
GB2500312A
GB2500312A GB1303293.3A GB201303293A GB2500312A GB 2500312 A GB2500312 A GB 2500312A GB 201303293 A GB201303293 A GB 201303293A GB 2500312 A GB2500312 A GB 2500312A
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GB
United Kingdom
Prior art keywords
warning
motor vehicle
vehicle
warning signal
distance
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.)
Withdrawn
Application number
GB1303293.3A
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GB201303293D0 (en
Inventor
Gerald Joachim Schmidt
Johannes Huth
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GM Global Technology Operations LLC
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GM Global Technology Operations LLC
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Filing date
Publication date
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Publication of GB201303293D0 publication Critical patent/GB201303293D0/en
Publication of GB2500312A publication Critical patent/GB2500312A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/525—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
    • B60Q1/323—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights on or for doors
    • B60Q1/324—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights on or for doors for signalling that a door is open or intended to be opened
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • 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
    • G08G1/163—Decentralised systems, e.g. inter-vehicle communication involving continuous checking
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9315—Monitoring blind spots
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93272—Sensor installation details in the back of the vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details
    • G01S2013/93274—Sensor installation details on the side of the vehicles

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

Raising an alert about a potential collision of an object 18 with a door 19 of a stationary vehicle 11 by monitoring a lateral rear space of the vehicle (e.g. using RADAR and ultrasonic sensors), said space having a predetermined width b (e.g. ¤3 m) and depth t (e.g. ¤35 m); detecting approaching object 18 within the lateral rear space; determining the objects distance and speed (4, Fig.1); calculating a warning distance as a function of the objects speed (5, Fig.1); and generating a warning signal in an interior space of the vehicle and on an exterior of the vehicle when the object distance is shorter than the warning distance (6, Fig.1). The exterior warning signal may be optical: e.g. indicators 14 or lamps 16 on a wing mirror 15. The interior warning signal may be acoustic: e.g. vehicle horn or an audible message.

Description

1
A METHOD FOR WARNING FROM A POTENTIAL COLLISION OF AN OBJECT WITH A VEHICLE DOOR OF A STATIONARY MOTOR VEHICLE
Description
The invention relates to a method and a system for warning from a potential collision of an object with a vehicle door of a stationary motor vehicle, with which a driver of the motor vehicle and a user of an approaching object can be warned prior to the opening of a door of a motor vehicle.
The driver of a motor vehicle can see the surrounding environment of the motor vehicle directly through the windowpanes and indirectly by means of the rear view mirrors! The driver is substantially able to see the area in front of the motor vehicle and the areas to the side of the vehicle through the windowpanes, whereas the area behind the vehicle can be seen by the rear view mirror in the interior of the vehicle and the area laterally behind the motor vehicle by one or several exterior rear view mirrors. As a result of the limited field of vision of the driver and the geometrical conditions in the motor vehicle, i.e. as a result of a column between the windows of the vehicle which obstruct vision for example, the driver of the vehicle is generally not able to see all areas around the vehicle without twisting the head. Areas that are disposed directly behind and in front of the vehicle therefore cannot be seen by the driver or only with difficulty. Similarly, there are areas to the side of the vehicle which the driver cannot see without considerably changing the field of view by twisting his or her head. These areas that are difficult to see to the side of the vehicle are known as the blind spot areas of the vehicle.
Especially when opening the door of a parked motor vehicle, this leads to an increased safety risk by collision with other traffic participants, especially pedestrians, playing children or cyclists, because the driver is unable to see all areas surrounding the motor vehicle.
Conventional motor vehicles are therefore increasingly provided with a whole number of assistance systems which are used for providing specific information to the driver and to draw his or her attention to potential hazards or hazardous situations, e.g. a blind spot warning system or lane-keeping assistants. In some cases, the sensors and sensor data fusion of such systems allow monitoring the entire vehicle and may contribute to warning the driver of the motor vehicle from potential collisions with other traffic participants.
2
A method for warning from a potential collision of an object with a vehicle door of a stationary motor vehicle is known from the specification DE 102 61 622 A1, in which a warning signal for the vehicle passengers will be generated when a distance of an object determined by sensors integrated in the motor vehicle is smaller than a warning distance.
It is the object of the present invention to provide a method and a system for warning from a potential collision of an approaching object with a vehicle door of a stationary motor vehicle which leads to increased traffic safety.
This object is achieved by the subject matter of the independent claims. Further advantageous details are the subject matter of the dependent claims.
In accordance with one embodiment of the invention, a method for warning from a potential collision of an object with a vehicle door of a stationary motor vehicle is provided which comprises the following steps. At first, a lateral rear space of the motor vehicle will be monitored, wherein the lateral rear space has a predetermined width and a predetermined depth. Once an object is detected within the lateral rear space, a distance and a speed of the object will be detected and a warning distance will be calculated as a function of the speed of the object.
When the distance of the object is shorter than the warning distance, a warning signal will be produced thereafter in an interior space of the vehicle and on the outside of the vehicle.
It is therefore the principal idea for warning from a potential collision of an object with a vehicle door of a stationary motor vehicle to emit a warning signal both to the vehicle passengers and also to an object approaching the stationary vehicle from behind.
Such a method comes with the advantage that it can contribute to increased traffic safety. In addition to the warning given to the passengers of the vehicle, a warning is also given to the surrounding environment in order to inform an approaching object such as a cyclist about the potential hazard. As a result, the method will signal the potential hazard to careless cyclists and will increase their awareness. They will then be able to respond to the potentially hazardous situation in that they will reduce their speed or yield, so that serious accidents can be avoided.
In accordance with one embodiment, the step of generating a warning signal may comprise the generation of an optical warning signal. Optical warning signals come with the advantage that they can be perceived even in the case of loud background noises which are caused by traffic noise for example and will thereby make the user of an approaching object such as a cyclist perform a rapid and intuitive reaction in order to prevent a potential collision of the object with the vehicle door of a stationary motor vehicle.
3
The generation of the optical warning signal may comprise the activation of a warning signal flasher of the motor vehicle and/or the illumination of lamps on an exterior mirror of the motor vehicle. In the case of conventional blind spot warning devices, such lamps are attached to the exterior mirrors of the motor vehicle, e.g. in form of signal lamps integrated in the exterior mirrors. The step of generating a warning signal can therefore be implemented in a simple way by means of optical signal transmitters integrated in the vehicle without having to integrate and/or trigger further components in the vehicle, so that expensive and complex reconfigurations can be avoided. Furthermore, further optical warning signals can be generated by projecting a warning message onto a windshield of the motor vehicle in order to warn the passengers of the vehicle from an impending hazardous situation.
This step of generating a warning signal may also comprise the generation of an acoustic warning signal. Such acoustic signals are known in conventional motor vehicles in order to draw the attention of other traffic participants to the criticality of the respective situation. They will be induced by such signals to remedy the critical situation accordingly.
The generation of an acoustic warning signal may comprise the activation of a horn of the motor vehicle and/or the playback of an acoustic warning in the interior space of the vehicle. Horns on motor vehicles are generally provided with the function of emitting an acoustic signal in case of danger. Furthermore, the user of an object that is approaching a stationary motor vehicle such as a cyclist for example would intuitively bring the perception of a horn in connection with a motor vehicle, thereby increasing their attention and being made to respond rapidly and intuitively to a hazardous situation. Furthermore, horns are required in conventional motor vehicles, so that the method can be implemented easily without requiring any additional signal transmitters, which would otherwise lead to expensive and complex reconfigurations. As a result of the playback of an acoustic warning in the interior space of the motor vehicle, passengers of the motor vehicle can be warned from a potential collision and can thereby be caused to take steps against the hazardous situation. Depending on the volume and positioning of the warning transmitter within the motor vehicle, the acoustic warning signal can also be perceived outside of the motor vehicle and can therefore also warn the user of the approaching object from the hazardous situation. Preferably, the acoustic warning signal concerns a sound or a sequence of sounds which indicate the type of the approaching object, e.g. the playback of a bicycle bell in order to provide the passengers of the motor vehicle with the largest possible amount of information on the type of the potential hazardous situation.
Furthermore, further warning signals can be generated, e.g. a haptic warning signal for the passengers of the vehicle.
4
The lateral rear space to be monitored can be chosen in such a way that its width is more than 0 m and less than or equal to 3 m, and the depth is more than 0 m and less than or equal to 35 m. The rear space to be monitored can therefore be set in such a way that on the one hand a minimum amount for the rear space to be monitored is maintained related to the reaction times of the user of the approaching object and/or the reaction time required by the passengers of the motor vehicle, and on the other hand the rear space to be monitored is not chosen to be excessively large in order to prevent a generation of a warning signal far from a potential collision between an approaching object and the door of a stationary motor vehicle, which would result in unnecessary power consumption and a discharge of the vehicle battery.
The invention also provides a system for warning from a potential collision of an approaching object with a vehicle door of a stationary motor vehicle.
The system comprises sensors for monitoring a lateral rear space of the motor vehicle which comprises a predetermined width and a predetermined depth for detecting an object within the lateral rear space and for determining a distance and a speed of the object. The system further comprises an evaluation unit for calculating a warning distance as a function of the speed of the object, and a control unit for generating a warning signal when the distance of the object is shorter than the warning distance. The control device is arranged in such a way that warning transmitters in an interior space of the motor vehicle and warning transmitters on an outside of the motor vehicle are activated. Such a system comes with the advantage that traffic safety can be increased thereby. In addition to the warning of passengers of the vehicle, a warning can be transmitted to the surrounding environment of the vehicle by means of the system in order to inform an approaching object such as a cyclist about the potential hazard. As a result,
inattentive cyclists can be informed about the potentially hazardous situation and their attention can be increased accordingly. They will then be able to respond to the hazardous situation by either reducing the speed or yielding, so that serious accidents can be avoided.
The sensors can concern radar and ultrasonic sensors. Such sensors are known as components of blind spot warning systems or lane-keeping assistants for conventional motor vehicles, which is why they can easily be integrated in the motor vehicle and be triggered without requiring expensive and complex reconfigurations. Ultrasonic sensors are characterized by their long range, and radar by its properties as a long-range sensor, which is why they are especially suitable for detecting an object approaching a motor vehicle.
In accordance with one embodiment, the control device is arranged in such a way that it generates an optical warning signal. Optical warning signals come with the advantage that they
5
can be perceived even in the case of loud background noises which are caused by traffic noise for example and will thereby make the user of an approaching object such as a cyclist perform a rapid and intuitive reaction in order to prevent a potential collision of the object with the vehicle door of a stationary motor vehicle.
The warning transmitters can be a warning signal flasher of the motor vehicle and/or lamps attached to an exterior mirror of the motor vehicle. In the case of conventional blind spot warning devices, such lamps are attached to the exterior mirrors of the motor vehicle, e.g. in form of signal lamps integrated in the exterior mirrors. Optical warning transmitters which are integrated in conventional motor vehicles can therefore be used as warning transmitters without having to integrate further components into the vehicle and/or trigger the same, so that expensive and complex reconfigurations of the motor vehicle are avoided. Furthermore, further optical warning signals can be generated by projecting a warning message onto a windshield of the motor vehicle for example in order to warn the passengers of the vehicle from an impending hazardous situation.
Furthermore, the control device can also be arranged in such a way that it generates an acoustic warning signal. Acoustic signal generators are known in conventional motor vehicles in order to draw the attention of other traffic participants to the criticality of the respective situation by generating an acoustic signal. They will be induced by such signals to remedy the critical situation accordingly.
The warning transmitters can be a horn of the motor vehicle and/or an acoustic warning transmitter arranged in the interior space of the vehicle. Horns are required on conventional motor vehicles and are generally provided with the function of emitting an acoustic signal in case of danger. The user of an object that is approaching a stationary motor vehicle such as a cyclist for example would intuitively bring the perception of a horn in connection with a motor vehicle, thereby increasing their attention and being made to respond rapidly and intuitively to a hazardous situation. Since no additional acoustic warning transmitters need to be integrated in the motor vehicle, expensive and complex reconfigurations can be avoided. Acoustic warning signals can be played back on an acoustic warning transmitter in the interior of the vehicle, so that the passengers of the vehicle in particular are warned about a potential collision and are therefore made to respectively act against the hazardous situation.
Depending on the volume of the warning signal and the positioning of the warning transmitter within the motor vehicle, the acoustic warning signal can also be perceived outside of the motor vehicle and can therefore also warn the user of the approaching object from the hazardous situation. Preferably, the acoustic warning signal transmitter is arranged in such a way that a
6
sound or a sequence of sounds which indicate the type of the approaching object is played back as the acoustic warning signal, e.g. the noises of a bicycle bell in order to provide the passengers of the motor vehicle with the largest possible amount of information on the type of the potential hazardous situation.
Furthermore, the control device can be arranged in such a way that further warning signals are generated, e.g. a haptic warning signal for the passengers of the vehicle.
The lateral rear space to be monitored can be arranged in such a way that its width is more than 0 m and less than or equal to 3 m, and the depth is more than 0 m and less than or equal to 35 m. The rear space to be monitored can therefore be set in such a way that on the one hand a minimum amount for the rear space to be monitored is maintained relating to the reaction times of the user of the approaching object and/or the reaction time required by the passengers of the motor vehicle, and on the other hand the rear space to be monitored is not chosen to be excessively large in order to prevent a generation of a warning signal far from a potential collision between an approaching object and the door of a stationary motor vehicle, which would result in unnecessary power consumption and a discharge of the vehicle battery.
The invention also provides a motor vehicle which comprises a system as described above.
Such a motor vehicle comes with the advantage that it can contribute to increased traffic safety. In addition to the warning of passengers of the motor vehicle, a warning can also be transmitted to the surrounding environment of the motor vehicle by the system in order to inform an approaching object such as a cyclist about the potential hazard. Inattentive cyclists can be informed in this way about the hazardous situation and their attention can be increased accordingly. They will then be able to respond to the potentially hazardous situation in that they will reduce their speed or yield for example, so that serious accidents can be avoided.
Notice must be taken in summary that such a method and such a system allows increasing traffic safety. As a result, the passengers of the vehicle and the user of an object approaching a stationary vehicle can be warned from a potential collision of the object with the vehicle door because a warning signal will be generated both in the interior space of the vehicle and also on the outside of the vehicle.
Furthermore, such a method and such a system can be implemented easily because signal transmitters integrated in conventional motor vehicles can be used as warning transmitters without having to integrate further components in the motor vehicle, so that expensive and complex reconfigurations can be avoided.
7
In order to prevent a discharge of the vehicle battery which is caused by unnecessary power consumption, the rear space to be monitored is preferably arranged in such a way that on the one hand a minimum amount for the rear space to be monitored is maintained relating to the reaction times of the user of the approaching object and/or the reaction time required by the passengers of the motor vehicle, and on the other hand the rear space to be monitored is not chosen to be excessively large in order to prevent a generation of a warning signal far from a potential collision between an approaching object and the door of a stationary motor vehicle.
The invention will be explained below in closer detail by reference to the enclosed drawings, wherein:
Fig. 1 shows a flowchart of a method for warning from a potential collision of an object with a vehicle door of a stationary motor vehicle according to embodiments of the invention;
Fig. 2 shows a schematic perspective view of a motor vehicle according to an embodiment of the invention;
Fig. 3 shows a block diagram of a system for warning from a potential collision of an approaching object with a vehicle door of a stationary motor vehicle according to an embodiment of the invention.
Fig. 1 shows a flowchart of a method 1 for warning from a potential collision of an object with a vehicle door of a stationary motor vehicle according to embodiments of the invention.
As is shown in Fig. 1, a lateral rear space of the motor vehicle will be monitored in a first step 2, which space has a predetermined width and a predetermined depth.
The rear space is chosen in such a way that the width of the lateral rear space to be monitored is more than 0 m and less than or equal to 3 m, and the depth of the lateral rear space to be monitored is more than 0 m and less than or equal to 35 m. The rear space to be monitored can therefore be determined in such a way that on the one hand a minimum amount for the rear space to be monitored is maintained relating to the reaction times of the user of the approaching object and/or the reaction time required by the passengers of the motor vehicle, and on the other hand the rear space to be monitored is not chosen to be excessively large in order to prevent a generation of a warning signal far from a potential collision between an approaching object and the door of a stationary motor vehicle, which would result in unnecessary power consumption and a discharge of the vehicle battery.
8
Fig. 1 shows further that it is checked in a further step 3 whether an approaching object is situated within the monitored rear space and is optionally detected.
In a subsequent step 4, a distance d between the approaching object and the stationary motor vehicle and a speed v of the object will be determined.
Subsequently 5, a warning distance dw will be calculated as a function of the speed v of the object.
If the distance of the object d is shorter than the warning distance dw, a warning signal will be generated in an interior space of the motor vehicle and on the outside of the vehicle in a subsequent step 6.
Said step 6 may comprise the generation of an optical warning signal.
This can occur for example by the activation of a warning signal flasher of the motor vehicle and/or the illumination of lamps on an exterior mirror of the motor vehicle. Such lamps are attached as components of conventional blind spot warning devices to the exterior mirrors of the motor vehicle, e.g. in form of signal lamps integrated in the exterior mirrors. Furthermore, further types of optical warning signals can be generated, e.g. by projecting a warning message onto a windshield of the motor vehicle.
Furthermore, the step 6 of generating a warning signal can also comprise the generation of an acoustic warning signal.
This can comprise the activation of a horn of the motor vehicle and/or the playback of an acoustic warning in the interior space of the vehicle for example. Depending on the volume and the positioning of the warning transmitter which generates the acoustic warning signal within the motor vehicle, the acoustic warning signal can also be perceived outside of the motor vehicle and therefore also warn the user of the approaching object about the hazardous situation.
Preferably, the acoustic warning signal concerns a sound or a sequence of sounds which indicates the type of the approaching object, e.g. the playback of a bicycle, bell in order to provide the passengers of the motor vehicle with the largest possible amount of information on the type of the potentially hazardous situation.
Furthermore, other types of warning signals can be generated, e.g. an haptic warning signal for the passengers of the vehicle.
I
9
Fig. 2 shows a schematic perspective view of a motor vehicle 11 according to embodiments of the invention.
As is shown in Fig. 2, the motor vehicle 11 comprises several signal transmitters 13 which are arranged on the outside 12 of the motor vehicle 11, especially warning signal flashers 14 and lamps 16 which are arranged on the exterior mirrors 15 of the motor vehicle 11. Such lamps 16 on the exterior mirrors 15 of the motor vehicle 11 are the component of conventional blind spot warning systems and are arranged in form of signal lamps integrated in the exterior mirrors 14.
Fig. 2 further shows a lateral rear space of the motor vehicle, which is indicated by the dashed line provided with reference numeral 17. The illustrated lateral rear space has a predetermined width b and a predetermined depth t.
In the illustrated embodiment, the width b of the lateral rear space is chosen equal to 3 m and the depth t of the lateral rear space is chosen equal to 35 m. Furthermore, the width b of the lateral rear space can also be larger than 0 m and less than 3 m, and the depth t of the lateral rear space can also be larger than 0 m and less than 35 m. The rear space to be monitored can therefore be determined in such a way that on the one hand a minimum amount for the rear space to be monitored is maintained relating to the reaction times of the user of the approaching object and/or the reaction time required by the passengers of the motor vehicle, and on the other hand the rear space to be monitored is not chosen to be excessively large in order to prevent a generation of a warning signal far from a potential collision between an approaching object 18 and the door 19 of a stationary motor vehicle 11, which would result in unnecessary power consumption and a discharge of the vehicle battery.
Fig. 2 also shows an object 18 which is disposed in the lateral rear space of the stationary motor vehicle 11 and which approaches the motor vehicle 11. It concerns a cyclist in this case. A warning signal can be generated by means of a system (not shown in Fig. 2) for warning from a potential collision of an object 18 with a vehicle door 19 of a stationary motor vehicle 11, which system is integrated in the motor vehicle 11, if the distance d between the motor vehicle 11 and the object 18 is shorter than a warning distance dw which is determined from a speed v of the object 18.
The warning transmitters 20 which generate the warning signal can be the warning signal flashers 14 and/or the lamps 16 attached to an exterior mirror 15 of the motor vehicle 11. It is ensured in this manner that in addition to a warning of the passengers of the vehicle a warning
10
is also sent to the surrounding environment of the vehicle 11 in order to inform an approaching object 18, which is a cyclist in Fig. 2, about the potential hazard.
Fig. 3 shows a block diagram of a system 21 for warning from a potential collision of an approaching object 18 with a vehicle door 19 of a stationary motor vehicle 11 according to an embodiment of the invention.
The illustration shows that the system 21 comprises sensors 22 for monitoring a lateral rear space of the motor vehicle which has a predetermined width b and a predetermined depth t for detecting an object 18 within the lateral rear space and for determining a distance d and a speed v of the object 18. The system 21 further comprises an evaluation unit 23 which is coupled with the sensors 22 for calculating a warning distance dw as a function of the speed v of the object 18. The coupling between the sensors 22 and the evaluation unit 23 will be symbolized in this case by the arrows provided with reference numerals 24.
The illustration further shows a control unit 25 which is coupled with the evaluation unit 23,
which generates a warning signal when the distance d of the object 18 is shorter than the warning distance dw. The coupling between the evaluation unit 23 and the control unit 25 is symbolized by the arrow provided with reference numeral 26.
The control device 25 is arranged in such a way that warning transmitters 27 are activated in an interior space of the motor vehicle 11 and warning transmitters 28 on the outside 12 of the motor vehicle 11. The coupling between the control device 25 and the warning transmitters 26, 27 are symbolized in this case again by the arrows provided with reference numerals 29.
The sensors 22 as shown in Fig. 3 concern radar 30 and ultrasonic sensors 31. They are known as parts of conventional blind spot warning systems or lane-keeping assistants for conventional motor vehicles and are suitable for good monitoring of a lateral rear space of a motor vehicle 11 due to their property as long-range sensors.
The control device 25 is arranged in such a way that it generates an optical warning signal.
The warning transmitters 27 concern warning signal flashers 14 of the motor vehicle 11 and lamps 16 attached to an exterior mirror 15 of the motor vehicle 11. Such lamps 16 on exterior mirrors 15 are part of conventional blind spot warning systems, e.g. in form of signal lamps integrated in the exterior mirrors 15.
11
The control device 25 of Fig. 3 is also arranged in such a way that it can generate an acoustic warning signal.
Fig. 3 also shows a horn 32 as a warning transmitter 26 and an acoustic warning transmitter 33 which is arranged in the interior space of the vehicle.
Depending on the volume and the positioning of the acoustic warning transmitter 33 within the motor vehicle 11, the acoustic warning signal which is emitted by said transmitter can also be perceived outside of the motor vehicle 11 and can therefore also warn the user of the approaching object 18 from a hazardous situation.
Preferably, the acoustic warning signal concerns a sound or a sequence of sounds which indicates the type of the approaching object, e.g. the playback of a bicycle bell in order to provide the passengers of the motor vehicle with the largest possible amount of information on the type of the potential hazardous situation.
Although at least one exemplary embodiment was shown in the description above, different changes and modifications can be made. The aforementioned embodiments are merely examples and are not provided to limit the scope of validity, the applicability or the configuration in any way. Instead, the preceding description provides the person skilled in the art with a plan for implementing at least one exemplary embodiment, wherein numerous changes in the function and the arrangement can be made to elements described in an exemplary embodiment without departing from the scope of protection of the enclosed claims and their legal equivalents.
12
List of reference numerals
1
Method
2, 3, 4, 5, 6
Method steps
11
Motor vehicle
12
Outside of the vehicle
13
Signal transmitter
14
Warning signal flasher
15
Exterior mirror
16
Lamps
17
Lateral rear space
18
Object
19
Vehicle door
20
Warning transmitter
21
System
22
Sensors
23
Evaluation unit
24
Coupling between sensors and evaluation unit
25
Control unit
26
Coupling between evaluation unit and control unit
27, 28
Warning transmitter
29
Coupling between control unit and warning transmitter
30
Radar
31
Ultrasonic sensor
32
Horn
33
Acoustic warning transmitter b
Width t
Depth
V
Speed d
Distance dw
Warning distance
13

Claims (1)

  1. CLAIMS:
    1. A method for warning from a potential collision of an object (18) with a vehicle door (19) of a stationary motor vehicle (11), with the method (1) comprising the following steps:
    - monitoring of a lateral rear space of the motor vehicle, said space having a predetermined width and a predetermined depth (2);
    - detection of an approaching object within the lateral rear space;
    - determination of a distance and a speed of the object (3);
    - calculation of a ,warning distance as a function of the speed of the object (4);
    - generating a warning signal in an interior space of a vehicle and on an exterior of the vehicle when the distance of the object is shorter than the warning distance (5).
    2. A method according to claim 1, wherein the generation of a warning signal (5) comprises the generation of an optical warning signal.
    3. A method according to claim 2, wherein the generation of a warning signal (5) comprises the activation of a warning signal flasher of the motor vehicle and/or the illumination of lamps on an exterior mirror of the motor vehicle.
    4. A method according to one of the claims 1 to 3, wherein the generation of the warning signal (5) comprises the generation of an acoustic warning signal.
    5. A method according to claim 4, wherein the generation of a warning signal (5) comprises the activation of a horn of the motor vehicle and/or the playback of an acoustic warning in the interior space of the vehicle.
    6. A method according to one of the claims 1 to 5, wherein the width of the lateral rear space to be monitored is more than 0 m and less than or equal to 3 m, and the depth of the lateral rear space to be monitored is more than 0 m and less than or equal to 35 m.
    7. A system for warning from a potential collision of. an object (18) with a vehicle door (19) of a stationary motor vehicle (11), which comprises sensors (22) for monitoring a lateral rear space of the motor vehicle (11) having a predetermined width (b) and a predetermined depth (t) for detecting an approaching object (18) within the lateral rear space and for determining a distance (d) and a speed (v) of the object (18), an evaluation unit (23) for calculating a warning distance (dw) as a function of the speed (v) of the object (18), and a control unit (25) for generating a warning signal when the
    14
    distance (d) of the object (18) is shorter than the warning distance (dw), wherein the control device (25) is arranged to activate a warning transmitter (27) in the interior space of the motor vehicle (11) and warning transmitters (28) on an exterior (12) of the motor vehicle (11).
    8. A system according to claim 7, wherein the sensors (22) comprise radar (30) and ultrasonic sensors (31).
    9. A system according to claim 7 or 8, wherein the control device (25) is arranged to generate an optical warning signal.
    10. A system according to claim 9, wherein the warning transmitters (28) are warning signal flashers (14) of the motor vehicle (11) and/or lamps (16) attached to an exterior mirror (15) of the motor vehicle (11).
    11. A system according to one of the claims 7 to 10, wherein the control device (25) is arranged to generate an acoustic warning signal.
    12. A system according to claim 11, wherein the warning transmitters (27) are a horn (32) and/or an acoustic warning transmitter (33) arranged in the interior space of the vehicle.
    13. A system according to one of the claims 7 to 12, wherein the width (b) of the lateral rear space to be monitored is more than 0 m and less than or equal to 3 m, and the depth (t) of the lateral rear space to be monitored is more than 0 m and less than or equal to 35 m
    14. A motor vehicle, comprising a system (21) according to one of the claims 7 to 13.
GB1303293.3A 2012-03-13 2013-02-25 Warning of potential collision of an object with a stationary automobile's door Withdrawn GB2500312A (en)

Applications Claiming Priority (1)

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DE102012005075A DE102012005075A1 (en) 2012-03-13 2012-03-13 A method of warning against a possible collision of an object with a vehicle door of a stationary motor vehicle

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GB2500312A true GB2500312A (en) 2013-09-18

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CN103303194A (en) 2013-09-18
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