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WO2014064827A1 - Dispositif de production d'un son d'avertissement d'approche de véhicule - Google Patents

Dispositif de production d'un son d'avertissement d'approche de véhicule Download PDF

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Publication number
WO2014064827A1
WO2014064827A1 PCT/JP2012/077684 JP2012077684W WO2014064827A1 WO 2014064827 A1 WO2014064827 A1 WO 2014064827A1 JP 2012077684 W JP2012077684 W JP 2012077684W WO 2014064827 A1 WO2014064827 A1 WO 2014064827A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
notification sound
approach notification
vehicle approach
control unit
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.)
Ceased
Application number
PCT/JP2012/077684
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English (en)
Japanese (ja)
Inventor
英一 有田
下谷　光生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2012/077684 priority Critical patent/WO2014064827A1/fr
Priority to JP2014543096A priority patent/JP5889430B2/ja
Publication of WO2014064827A1 publication Critical patent/WO2014064827A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
    • B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
    • 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

Definitions

  • the present invention relates to a vehicle approach notification sound generating device that generates a vehicle approach notification sound for notifying a pedestrian or the like of the approach of a host vehicle.
  • a vehicle approach notification sound generating device that generates a pseudo sound (vehicle approach notification sound) to make a pedestrian or the like recognize the approach of the host vehicle is provided.
  • a vehicle approach notification sound generating device that controls the output of a vehicle approach notification sound according to (see, for example, Patent Document 1).
  • Patent Document 1 a vehicle approach notification sound is generated (output) in the direction of the steering wheel operation, thereby notifying a pedestrian or the like existing in the steering wheel operation direction of the approach of the vehicle.
  • Patent Document 1 a vehicle approach notification sound cannot be generated for a pedestrian or the like before such a steering operation.
  • the present invention has been made to solve these problems, and provides a vehicle approach notification sound generating device capable of generating a vehicle approach notification sound in an appropriate direction according to the shape of a road. Objective.
  • a vehicle approach notification sound generating device stores a map information including road shape information or takes in map information from outside the device, and notifies a vehicle approach.
  • a vehicle approach notification unit that outputs a vehicle approach notification sound; a control unit that controls output of the vehicle approach notification sound; and a travel position detection unit that detects a vehicle position and a travel direction. The direction of the vehicle approach notification sound is controlled based on the vehicle position and traveling direction detected by the unit and the road shape stored by the map information storage unit.
  • a map information acquisition unit that stores map information including road shape information or captures map information from outside the device, a vehicle approach notification unit that outputs a vehicle approach notification sound that notifies the approach of the vehicle, and a vehicle approach A control unit that controls the output of the notification sound; and a travel position detection unit that detects the vehicle position and travel direction.
  • the control unit detects the vehicle position and travel direction detected by the travel position detection unit, and map information. Since the direction of the vehicle approach notification sound is controlled based on the road shape stored in the storage unit, the vehicle approach notification sound can be generated in an appropriate range according to the shape of the road. It becomes possible.
  • the vehicle approach notification sound is not limited to the simulated sound of the engine sound of a conventional gasoline vehicle, but an alarm sound (artificial sound) at the time of approaching a train at home or music approach Includes all sounds that can be used to alert you. Further, it is assumed that the vehicle approach notification sound generating device according to the present embodiment is installed in an automobile having a low traveling sound such as an electric vehicle or a hybrid vehicle.
  • FIG. 1 is a block diagram showing an example of the configuration of the vehicle approach notification sound generator 1 according to the present embodiment.
  • the vehicle approach notification sound generator 1 includes a vehicle information acquisition unit 2, a vehicle exterior information acquisition unit 3, a vehicle speed calculation unit 4, a host vehicle position calculation unit 5, and a map information storage unit 6.
  • the overall control unit 7, the left side vehicle approach notification sound control unit 8, the front vehicle approach notification sound control unit 9, and the right side vehicle approach notification sound control unit 10 are provided. Further, the left side vehicle approach notification sound control unit 8 is connected to the outside speaker 11, the front vehicle approach notification sound control unit 9 is connected to the outside speaker 12, and the right side vehicle approach notification sound control unit 10 is connected to the outside speaker 13. Has been.
  • the vehicle information acquisition unit 2 acquires various information about the vehicle (hereinafter referred to as vehicle information) such as wheel rotation pulses (vehicle speed pulses) and steering angle of the steering wheel via an in-vehicle LAN (Local Area Network) or the like, These are input to the vehicle speed calculation unit 4 and the vehicle position calculation unit 5.
  • vehicle information such as wheel rotation pulses (vehicle speed pulses) and steering angle of the steering wheel via an in-vehicle LAN (Local Area Network) or the like.
  • the vehicle outside information acquisition unit 3 acquires various types of information (hereinafter referred to as vehicle outside information) from the outside of the vehicle, such as vehicle position information by GPS (Global Positioning System) and camera image information around the vehicle.
  • vehicle outside information various types of information (hereinafter referred to as vehicle outside information) from the outside of the vehicle, such as vehicle position information by GPS (Global Positioning System) and camera image information around the vehicle.
  • GPS Global Positioning System
  • the vehicle speed calculation unit 4 calculates the vehicle speed (vehicle speed) based on the vehicle information input from the vehicle information acquisition unit 2.
  • the own vehicle position calculation unit 5 (running position detection unit) includes vehicle information input from the vehicle information acquisition unit 2, vehicle information acquired by the vehicle information acquisition unit 3, vehicle speed calculated by the vehicle speed calculation unit 4, Based on the map information stored in the map information storage unit 6, the position of the vehicle (own vehicle) on the map and the traveling direction are calculated.
  • the map information storage unit 6 (map information acquisition unit) acquires and stores map information including road shape information in advance.
  • the overall control unit 7 controls the directivity direction of the vehicle approach notification sound or the directivity angle width indicating the directivity of the vehicle approach notification sound, and generates the vehicle approach notification sound with the controlled directivity direction or directivity angle width (
  • the left side vehicle approach notification sound control unit 8, the front vehicle approach notification sound control unit 9, and the right side vehicle approach notification sound control unit 10 are controlled so as to be output.
  • the directivity of the vehicle approach notification sound will be described in detail later.
  • Each of the left side vehicle approach notification sound control unit 8, the forward vehicle approach notification sound control unit 9, and the right side vehicle approach notification sound control unit 10 generates a vehicle approach notification sound signal based on the control (instruction) of the overall control unit 7.
  • the generated vehicle approach notification sound signal is transmitted to the outside speakers 11 to 13.
  • Outside speakers 11 to 13 are vehicle approach notification sound signals from left side vehicle approach notification sound control unit 8, forward vehicle approach notification sound control unit 9, and right side vehicle approach notification sound control unit 10, respectively. Is output (notified) outside the vehicle as a vehicle approach notification sound.
  • the outside speaker 11 is provided on the left side with respect to the traveling direction of the vehicle
  • the outside speaker 12 is provided on the front side of the vehicle
  • the outside speaker 13 is provided on the right side with respect to the traveling direction of the vehicle.
  • the vehicle approach notification sound output from the outside speakers 11, 13 is referred to as a side vehicle approach notification sound
  • the vehicle approach notification sound output from the outside speaker 12 is referred to as a forward vehicle approach notification sound.
  • the outside speakers 11 to 13 directional speakers, for example, represented by parametric speakers, whose directivity can be arbitrarily controlled by external control are used.
  • FIG. 2 is a diagram for explaining the directivity of the vehicle approach notification sound, and shows an example of a directivity expression method.
  • the directivity is a characteristic of the strength of the vehicle approach notification sound with respect to the direction.
  • P indicates the same sound pressure for each direction.
  • the sound pressure p (r, ⁇ ) at the point z (r, ⁇ ) shown in the polar coordinate system satisfies sound pressure p (r, ⁇ ) ⁇ P.
  • the directivity of the speakers is bilaterally symmetric and has the maximum sound pressure (in FIG. 2A, the front direction of the speaker). ) From which the sound pressure monotonously decreases, and the direction having the maximum sound pressure is defined as the pointing direction.
  • P shown in FIG. 2 is a set of points that generate a sound pressure of 70 dB from the speaker when a predetermined current flows, and the pointing direction of the speaker shown in FIG. 2A is 0 degree with respect to the front direction.
  • the direction of the speaker shown in FIG. 2B is a direction of ⁇ degrees with respect to the front direction.
  • the directivity of the sound output from the speaker is generally different depending on the frequency, but in the present embodiment, for convenience of explanation, the directivity is not limited to the frequency and will be described as the same.
  • the sound pressure is an integral value of the power of each frequency in the audible range. Since the human sense has different sensitivities depending on the frequency, the sound pressure considering the sensitivity curve is P.
  • Fa (f) the frequency characteristic of the vehicle approach notification sound
  • Fb (f) the frequency
  • P ⁇ Fa (f) ⁇ Fb (f) df
  • f 0 to 20 kHz
  • Fa (f) an A curve, a B curve, a C curve, and the like are defined as curves of sensitivity to noise.
  • the A curve is adopted.
  • the power of each frequency in the audible range may be calculated by narrowing the audible range to a predetermined frequency range such as 300 Hz to 3 kHz.
  • FIG. 3 is a diagram for explaining the directivity angle width.
  • the pointing direction of the speaker shown in FIG. 3 is a direction of 0 degrees with respect to the front direction.
  • the width of directivity is referred to as a directivity angle width.
  • the directivity angle width ⁇ is defined as the left and right angle width with the front direction as the central axis when the distance having the same sound pressure as the sound pressure in the directivity direction is 1 / ⁇ 2. .
  • the directivity angle width ⁇ is the angle width when the distance is 1 / ⁇ 2 with respect to the distance in the directivity direction, but is not limited thereto.
  • the left and right angles ( ⁇ 2,%) Of the directivity direction when the power is an entire area S (the area surrounded by an ellipse in FIG. 4) with respect to the directivity direction. ⁇ 1) may be obtained, and the difference between the left and right angles ( ⁇ 2 ⁇ 1) may be used as the directivity angle width ⁇ . That is, in FIG. 4, the area surrounded by the straight line oa, the curve ab, and the straight line bo is 1 ⁇ 2 of the entire area S.
  • the directivity of the vehicle approach notification sound is uneven or laterally asymmetric with respect to the directivity direction, so that the sound pressure does not always monotonously decrease from the direction having the maximum sound pressure as described above. .
  • the directivity angle width may be obtained based on the entire area of the power.
  • FIG. 5 is a flowchart showing an example of the overall operation of the vehicle approach notification sound generating device 1.
  • the overall control unit 7 acquires map information including road shape information from the map information storage unit 6.
  • the road shape is the shape of a road (for example, a straight line or a curve) that changes in the left-right direction (horizontal direction) with respect to the traveling direction of the vehicle and the vertical direction (vertical direction) with respect to the traveling direction of the vehicle
  • the shape of a changing road for example, a road having a slope such as an uphill or a downhill.
  • information regarding the shape of the road that changes in the vertical direction with respect to the traveling direction of the vehicle is referred to as gradient information.
  • the overall control unit 7 acquires map information ahead of the host vehicle from the map information storage unit 6, but the host vehicle position is obtained based on information about the host vehicle position and the traveling direction acquired from the host vehicle position calculation unit 5. It is done.
  • step S ⁇ b> 52 the overall control unit 7 determines the vehicle approach notification sound based on the information on the vehicle position and the traveling direction calculated by the vehicle position calculation unit 5 and the road shape information acquired from the map information storage unit 6.
  • the left-side vehicle approach notification sound control unit 8, the forward vehicle approach notification sound control unit 9, and the right-side vehicle approach notification sound control unit 10 generate a vehicle approach notification sound in the determined directivity direction. Instruct (control) to do.
  • step S ⁇ b> 53 the left side vehicle approach notification sound control unit 8, the forward vehicle approach notification sound control unit 9, and the right side vehicle approach notification sound control unit 10 generate a vehicle approach notification sound in the directing direction designated by the overall control unit 7.
  • a vehicle approach notification sound signal is generated so as to be generated, and the generated vehicle approach notification sound signal is transmitted to the outside speakers 11 to 13.
  • step S54 the outside speakers 11 to 13 receive vehicle approach notification sound signals from the left side vehicle approach notification sound control unit 8, the forward vehicle approach notification sound control unit 9, and the right side vehicle approach notification sound control unit 10, respectively.
  • the vehicle approach notification sound is generated (output) based on the received vehicle approach notification sound signal.
  • FIG. 6 is a flowchart showing an example of the operation of the overall control unit 7.
  • step S61 the gradient information of the road ahead of the vehicle position is acquired from the map information storage unit 6. Further, the overall control unit 7 obtains the vehicle position based on the information on the vehicle position and the traveling direction acquired from the vehicle position calculation unit 5.
  • step S62 the change in road gradient is “down”, “flat”, “up” based on the information regarding the road gradient at the current vehicle position and the gradient information ahead of the vehicle position acquired in step S61. It is judged whether it is either.
  • the process proceeds to step S63. If the change in road gradient is “flat”, the process proceeds to step S65. If the change in the road gradient is “uphill”, the process proceeds to step S64.
  • the change in the road gradient “down” means that the road gradient ahead of the vehicle position is smaller than the road gradient at the current vehicle position.
  • the change in the road gradient is “flat” means that the road gradient at the current vehicle position is the same as the road gradient ahead of the vehicle position.
  • the change in road gradient “up” means that the road gradient ahead of the vehicle position is larger than the road gradient at the current vehicle position.
  • the change of the road gradient ahead of the vehicle position with respect to the road gradient at the current vehicle position can be obtained by an arbitrary method.
  • the gradient information at the current vehicle position may be acquired from the map information storage unit 6. That is, the gradient information at the current vehicle position and the gradient information in front of the vehicle position may be acquired from the map information storage unit 6 to obtain a change in the road gradient.
  • vehicle inclination information detected by a gyro sensor provided in the vehicle may be acquired via the vehicle information acquisition unit 2, and the acquired vehicle inclination may be used as a road gradient at the current host vehicle position. That is, the change in the road gradient may be obtained based on the vehicle inclination at the current vehicle position and the gradient information in front of the vehicle position.
  • step S63 the directing direction of the vehicle approach notification sound is set downward according to the downhill angle of the road. As a result, a vehicle approach notification sound is generated downward from the vehicle in the traveling direction. Thereafter, the process proceeds to step S65.
  • step S64 the directing direction of the vehicle approach notification sound is set to the upper side in accordance with the angle of the road uphill. As a result, a vehicle approach notification sound is generated from the vehicle toward the upper side in the traveling direction. Thereafter, the process proceeds to step S65.
  • step S65 it is determined whether or not the vehicle (own vehicle) has been driven. A process is complete
  • FIG. 7 to 9 are diagrams showing the relationship between the road shape (vertical shape with respect to the traveling direction of the vehicle) and the directing direction of the vehicle approach notification sound based on the operation of FIG. 7 to 9, an ellipse shown in front of the vehicle schematically shows a propagation range of the vehicle approach notification sound generated (output) from the vehicle. Further, the vehicle approach notification sound is assumed to be a front vehicle approach notification sound generated from the outside speaker 12 under the control of the forward vehicle approach notification sound control unit 9.
  • the vehicle approach notification sound is generated straight from the vehicle. That is, the vehicle approach notification sound is generated without making an angle in the directing direction above or below the traveling direction of the vehicle.
  • the vehicle approach notification sound is To be generated. That is, the vehicle approach notification sound is generated with an angle in the directing direction on the lower side with respect to the traveling direction of the vehicle (step S63 in FIG. 6).
  • step S62 in FIG. 6 when the road ahead of the host vehicle is up (when it is determined in step S62 in FIG. 6 that the change in the road gradient is “up”), the vehicle approach notification sound is emitted upward from the vehicle. Generated towards. That is, the vehicle approach notification sound is generated with an angle in the directing direction on the upper side with respect to the traveling direction of the vehicle (step S64 in FIG. 6).
  • FIG. 10 is a diagram illustrating a state in which a vehicle approach notification sound is generated in response to a change in road gradient.
  • an ellipse shown in front of the vehicle schematically shows a propagation range of the vehicle approach notification sound generated (output) from the vehicle.
  • the vehicle approach notification sound is assumed to be a front vehicle approach notification sound generated from the outside speaker 12 under the control of the forward vehicle approach notification sound control unit 9.
  • FIG. 10 (a) shows a situation in which the vehicle is traveling on a downhill.
  • the overall control unit 7 acquires the gradient information of the road ahead of the vehicle position from the map information storage unit 6 and determines that the change in the road gradient is “down” (steps S61 and S62 in FIG. 6). As a result, the vehicle approach notification sound is generated with an angle in the directing direction downward with respect to the traveling direction of the vehicle (step S63 in FIG. 6).
  • FIG. 10B shows a state in which the vehicle is traveling downhill.
  • the overall control unit 7 acquires the gradient information of the road ahead of the host vehicle position from the map information storage unit 6 and determines that the change in the road gradient is “flat”. That is, it is determined that the road gradient at the current vehicle position is the same as the road gradient ahead of the vehicle position. As a result, the vehicle approach notification sound is generated straight without making an angle in the directing direction above or below the traveling direction of the vehicle.
  • the vehicle approach notification sound is generated with the directing direction downward when the vehicle approaches a downhill, and straight when traveling on the downhill. That is, the overall control unit 7 controls the directivity direction of the vehicle approach notification sound based on the gradient information, and sets the directivity direction of the vehicle approach notification sound before and after reaching the point where the road gradient changes. It is changing. Therefore, it is possible to make a pedestrian or the like recognize the approach of the vehicle efficiently.
  • the downhill has been described, but the same applies to the uphill.
  • FIG. 11 is a flowchart showing an example of the operation of the overall control unit 7.
  • step S111 the generation of the vehicle approach notification sound is set to the normal running state.
  • the generation of the vehicle approach notification sound to the normal traveling state means that the direction of the vehicle approach notification sound is changed according to the road shape (here, the road shape that changes in the left-right direction) during traveling. .
  • the direction of the front vehicle approach notification sound generated from the outside speaker 12 is changed from the state of FIG. 12 to the state of FIG. 13.
  • the overall control unit 7 controls the direction of the vehicle approach notification sound to be the direction of the curve.
  • step S112 it is determined whether or not the vehicle (own vehicle) has been driven. A process is complete
  • step S113 navigation route information or vehicle information is acquired.
  • the overall control unit 7 has a navigation function, and can calculate a route based on the map information stored in the map information storage unit 6.
  • the route calculated in this way is referred to as navigation route information here.
  • step S114 it is determined whether the vehicle can be estimated to turn left or right. When it can be estimated that the vehicle turns right or left, the process proceeds to step S115. On the other hand, if it cannot be estimated that the vehicle turns right or left, the process proceeds to step S111.
  • the estimation of whether or not the vehicle turns right or left can be estimated that the vehicle turns right or left when the route is turning right or left based on the navigation route information, for example.
  • the vehicle can be estimated whether the vehicle turns right or left based on the vehicle information. For example, when the vehicle decelerates below a predetermined speed based on the vehicle speed information, it can be estimated that the vehicle turns right or left. Further, it can be estimated that the vehicle turns right or left based on the information that the indicator indicating the right or left turn is in operation.
  • step S115 it is determined whether or not the vehicle is present at a position below a predetermined distance from the intersection. If the vehicle is located at a predetermined distance (for example, 5 m) or less from the intersection, the process proceeds to step S116.
  • a predetermined distance for example, 5 m
  • step S116 for example, when the vehicle turns left at the intersection, the left side vehicle approach notification sound control unit 8 is controlled so that the direction of the side vehicle approach notification sound generated from the outside speaker 11 is closer to the front. Further, the front vehicle approach notification sound control unit 9 is controlled so that the direction of the front vehicle approach notification sound generated from the outside speaker 12 is the left turn direction.
  • step S116 the process proceeds to step S117.
  • step S117 it is determined whether the vehicle has started a left turn at the intersection. Whether the vehicle has started turning right or left at the intersection can be determined based on, for example, information on the depression angle of the steering wheel. After step S117, the process proceeds to step S118.
  • step S118 when the vehicle starts a left turn at the intersection, the direction of the side vehicle approach notification sound generated from the outside speaker 11 is the standard direction (perpendicular to the vehicle traveling direction (straight side direction)).
  • the left side vehicle approach notification sound control unit 8 is controlled.
  • the forward vehicle approach notification sound is generated so that the directing direction of the forward vehicle approach notification sound generated from the outside speaker 12 is a standard direction (vehicle traveling direction) and wide directivity (increases the directivity angle width).
  • the sound controller 9 is controlled.
  • the directing direction is controlled so that the side vehicle approach notification sound is generated from the side, and the front vehicle approach notification sound is
  • the directivity direction and the directivity angle width are controlled to achieve wide directivity.
  • the ellipses shown on the left side and the front of the vehicle schematically show the propagation range of the vehicle approach notification sound generated (output) from the vehicle.
  • step S119 it is determined whether the vehicle has completed a left turn at the intersection. Whether or not the vehicle has made a left turn at an intersection can be determined based on, for example, map information (the vehicle position on the map). It can also be determined based on steering angle information (return straight after turning left) and speed information (increase speed). After the process of step S119, the process proceeds to step S111.
  • map information the vehicle position on the map. It can also be determined based on steering angle information (return straight after turning left) and speed information (increase speed).
  • FIG. 11 demonstrated the case where it turns left at an intersection, it is applicable also when it turns right. That is, when the vehicle turns right or left, the overall control unit 7 approaches the vehicle so that the vehicle approach notification sound is concentrated on a predetermined area (for example, an area where a pedestrian or the like is present at the intersection) ahead of the right or left turn. Controls the direction of notification sound.
  • a predetermined area for example, an area where a pedestrian or the like is present at the intersection
  • the present embodiment it is possible to effectively generate a vehicle approach notification sound in an appropriate direction according to the road shape. Therefore, the approach of the vehicle can be reliably notified to a pedestrian or the like. In addition, when making a right or left turn at an intersection, it is possible to prevent accidents involving pedestrians and the like.
  • the front vehicle approach notification sound generated from the outside speaker 12 has been described.
  • the side vehicle approach notification sound may also be generated from the outside speakers 11 and 13.
  • the side vehicle approach notification sound is generated forward according to the speed (as the speed increases), and when traveling on a road having a slope as shown in FIGS.
  • it may be generated with an angle in the directing direction on the lower side or the upper side.
  • the front vehicle approach notification sound generated from the outside speaker 12 has been described, but the side vehicle approach notification sound may be generated from the outside speakers 11 and 13. In this case, the side vehicle approach notification sound may be generated by the same operation as in FIGS.
  • step S117 of FIG. 11 if the vehicle passes through the intersection without turning right or left, it may be determined that the vehicle has not started a right or left turn at the intersection (No in step S117), and the process may be terminated. .
  • the front vehicle approach notification sound generated from the vehicle exterior speaker 12 has been described, but the side vehicle approach notification sound may be generated from the vehicle exterior speakers 11 and 13.
  • the direction of the side vehicle approach notification sound generated from the outside speakers 11 and 13 may be the direction of the curve.
  • the side vehicle approach notification sound at this time may be generated forward depending on the speed (as the speed increases).
  • the side vehicle approach notification sound generated from the outside speaker 11 and the front vehicle approach notification sound generated from the outside speaker 12 have been described, but the side vehicle approach notification sound is generated from the outside speaker 13. You may make it make it.
  • the direction of the side vehicle approach notification sound generated from the vehicle exterior speaker 13 may be the left / right turn direction.
  • the road shape described in this embodiment can be known by various methods.
  • the road shape can be known based on the map information stored in the map information storage unit 6.
  • the vehicle is provided with a surrounding detection device such as a camera, and the road shape on which the host vehicle travels can be known by the surrounding detection device.
  • a signal related to the interlock can be obtained from a directional sub headlight that illuminates the traveling direction in conjunction with the steering operation, and the shape of the road on which the host vehicle travels can be known based on the signal.
  • the means for detecting the road shape on which the host vehicle travels as described above is particularly referred to as a road shape detection unit.
  • the vertical movement (see FIG. 6) and the horizontal movement (see FIG. 11) are individually described for the direction of the vehicle approach notification sound.
  • both movements may be combined.
  • the direction of the vehicle approach notification sound is the left direction and the upward direction. That is, when the road ahead of the vehicle changes its slope up and down and also turns to the left or right, the overall control unit 7 turns the vehicle approach notification sound to the left or right taking into account the change in the slope.
  • the directivity of the vehicle approach notification sound is controlled so as to be concentrated in a predetermined area.
  • the vehicle approach notification sound generating device 1 includes the map information storage unit 6, but is not limited thereto.
  • a map information acquisition unit that captures map information from the outside of the vehicle approach notification sound generation device 1 (outside the device) may be provided.
  • the vehicle information acquisition unit 3 captures map information from outside the device.
  • a method of using the acquired map information for example, a method of acquiring and using necessary map information in real time or a predetermined map information is acquired and temporarily stored (for example, stored in a memory of the overall control unit 7). There is a method of using the stored map information as necessary.
  • 1 Vehicle approach notification sound generator 2 Vehicle information acquisition unit, 3 Outside vehicle information acquisition unit, 4 Vehicle speed calculation unit, 5 Vehicle position calculation unit, 6 Map information storage unit, 7 Overall control unit, 8 Left side vehicle approach notification sound Control unit, 9 Front vehicle approach notification sound control unit, 10 Right side vehicle approach notification sound control unit, 11-13 Outside speaker.

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  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'objet de la présente invention est de proposer un dispositif de production d'un son d'avertissement d'approche de véhicule capable de produire un son d'avertissement d'approche de véhicule dans une plage appropriée dépendant de la forme de la route. Ce dispositif (1) de production d'un son d'avertissement d'approche de véhicule est caractérisé en ce qu'il est équipé d'une unité (6) de stockage d'informations cartographiques comprenant des informations sur la forme de la route ou qu'il recueille ces informations cartographiques à l'extérieur du dispositif, de haut-parleurs (11÷13) extérieurs au véhicule qui émettent un son d'avertissement d'approche de véhicule pour avertir de l'approche du véhicule, d'une unité (7) de commande totale qui commande l'émission du son d'avertissement d'approche de véhicule et d'une unité de calcul (5) de position du véhicule hôte qui détecte la position du véhicule hôte et sa direction de déplacement, dans lequel l'unité (7) de commande totale commande la direction d'orientation du son d'avertissement d'approche de véhicule en fonction de la position du véhicule hôte et de sa direction de déplacement détectées par l'unité de calcul (5) de position du véhicule hôte et de la forme de la route stockée dans l'unité (6) de stockage d'informations cartographiques.
PCT/JP2012/077684 2012-10-26 2012-10-26 Dispositif de production d'un son d'avertissement d'approche de véhicule Ceased WO2014064827A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2012/077684 WO2014064827A1 (fr) 2012-10-26 2012-10-26 Dispositif de production d'un son d'avertissement d'approche de véhicule
JP2014543096A JP5889430B2 (ja) 2012-10-26 2012-10-26 車両接近報知音発生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/077684 WO2014064827A1 (fr) 2012-10-26 2012-10-26 Dispositif de production d'un son d'avertissement d'approche de véhicule

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WO2014064827A1 true WO2014064827A1 (fr) 2014-05-01

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CN109155108A (zh) * 2016-05-24 2019-01-04 京瓷株式会社 车载装置、车辆、报告系统以及报告方法

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EP3730374A1 (fr) * 2019-04-26 2020-10-28 Tusimple, Inc. Module d'assistant auditif pour véhicules autonomes

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WO2018143086A1 (fr) * 2017-02-01 2018-08-09 株式会社デンソー Dispositif de sortie d'ondes ultrasonores

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