WO2011118064A1 - 車両想起音発生装置及び車両想起音発生方法 - Google Patents
車両想起音発生装置及び車両想起音発生方法 Download PDFInfo
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- WO2011118064A1 WO2011118064A1 PCT/JP2010/067790 JP2010067790W WO2011118064A1 WO 2011118064 A1 WO2011118064 A1 WO 2011118064A1 JP 2010067790 W JP2010067790 W JP 2010067790W WO 2011118064 A1 WO2011118064 A1 WO 2011118064A1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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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
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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
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
Definitions
- the present invention relates to a vehicle-like sound generation device, a vehicle-like sound generation method, a vehicle-like sound generation program, and a recording medium on which the vehicle-like sound generation program is recorded.
- Patent Document 1 hereinafter referred to as “Conventional Example 1”.
- a traveling signal is generated based on the detection result of the vehicle speed, the rotational speed of the motor that is a power source, the accelerator opening, etc., and the traveling sound is output from the speaker to the front outside the vehicle. ing. Then, execution / non-execution of the running sound output is controlled according to the type of region in which the vehicle is running.
- Patent Document 2 hereinafter referred to as “Conventional Example 2”.
- Patent Document 2 an object that exists in front of the traveling direction is detected. And when the said object is detected, a notification sound is output toward the said object from a speaker.
- execution / non-execution of the pseudo sound output is controlled according to the type of the region in which the vehicle is traveling, but the simulation considering the situation of the road on which the vehicle is traveling is performed.
- the sound output is not controlled.
- the type of area in which the vehicle is traveling is the same, it is impossible to perform output control of traveling sound in consideration of the possibility of the presence of pedestrians, bicycles, and the like in the surroundings.
- the notification sound is output only when an object existing ahead in the traveling direction is detected.
- the approach of the vehicle cannot be notified.
- An object of the present invention is to provide a vehicle-evoked sound generating apparatus and a vehicle-evoked sound generating method that can be performed.
- the present invention is a vehicle-evoked sound generating device that outputs a vehicle-evoked sound from a sound output unit to the outside of a vehicle, and includes lane number information indicating the number of lanes on a road on which the vehicle is traveling.
- An acquisition unit that acquires lane information including: a determination unit that determines, based on the acquired lane information, a vehicle-evoked sound reachable range to which a vehicle-evoked sound output from the sound output unit should reach; And a control unit that controls the output of the vehicle-recollected sound corresponding to the vehicle-recollected sound reach range from the sound output unit.
- the present invention is a vehicle-evoked sound generating method used in a vehicle-evoked sound generating device that outputs a vehicle-evoked sound from a sound output unit to the outside of the vehicle, wherein the vehicle is traveling.
- a vehicle-evoked sound generating method comprising: is there.
- the present invention is a vehicle-evoked sound generation program that causes a calculation unit to execute the vehicle-evoked sound generating method of the present invention.
- the present invention is a recording medium in which the vehicle-like sound generation program of the present invention is recorded so as to be readable by a calculation unit.
- FIG. (2) for demonstrating the reach
- FIG. (3) for demonstrating the reach
- FIG. (3) for demonstrating the reach
- FIG. (3) is a flowchart for demonstrating the process at the time of controlling the reach
- FIG. 1 shows a schematic configuration of a vehicle-like sound generation device 700A according to the first embodiment.
- a vehicle recalling sound generator 700A is mounted on a vehicle MV, and a sound output unit 760 is connected thereto.
- the sound output unit 760 includes a vehicle-like sound signal generation unit, a volume adjustment unit, and a speaker.
- the sound output unit 760 includes two speakers: a left speaker that outputs sound toward the left front of the vehicle MV and a right speaker that outputs sound toward the front right of the vehicle MV.
- the control part 750 mentioned later performs a volume setting mutually independently with respect to each of a left speaker and a right speaker.
- the sound output unit 760 receives the set volume from the control unit 750. Then, the sound output unit 760 adjusts the volume of the vehicle evoked sound signal generated by the vehicle evoked sound signal generating unit according to the set volume, and outputs the vehicle evoked sound from the speaker to the outside of the vehicle MV.
- the vehicle recalling sound generation device 700A includes a storage unit 710, a position detection unit 720, and an acquisition unit 730A. In addition, the vehicle recalling sound generation device 700A includes a determination unit 740 and a control unit 750.
- various information used in the vehicle recalling sound generator 700A is stored.
- Such information includes map information.
- This map information includes lane information including road lane number information.
- the lane information further includes presence / absence information of the oncoming lane.
- number of lanes is used to mean the total number of lanes including the number of oncoming lanes.
- the position detection unit 720 detects the current position of the vehicle MV.
- the current position detected by the position detection unit 720 is sent to the acquisition unit 730A.
- the acquisition unit 730A receives the current position sent from the position detection unit 720. Then, the acquisition unit 730A refers to the map information in the storage unit 710 using the current position as a key, and acquires the lane information of the running road. The lane information acquired in this way is sent to the determination unit 740.
- the determination unit 740 receives the lane information sent from the acquisition unit 730A. Then, the determination unit 740 determines a range (hereinafter simply referred to as “reach range”) to which vehicle-evoked sounds such as pseudo engine sounds and warning sounds output by the sound output unit 760 toward the outside of the vehicle. The determined range of the vehicle recall sound is sent to the control unit 750. The determination process by the determination unit 740 will be described later.
- the control unit 750 receives the reach range sent from the determination unit 740. Then, the control unit 750 sends a set volume necessary for realizing the reachable range to the sound output unit 760.
- position detection unit 720 detects the current position of vehicle MV and periodically sends the detected current position to acquisition unit 730A.
- the acquisition unit 730A that has received the current position of the vehicle MV refers to the map information in the storage unit 710 based on the current position, and acquires the number of lanes on the road on which the vehicle MV is currently traveling and the presence or absence of an oncoming lane. . Then, the acquisition unit 730A sends the acquired number of lanes and the presence or absence of the opposite lane to the determination unit 740 as lane information.
- the determination unit 740 that has received the lane information sent from the acquisition unit 730A performs a first determination as to whether or not the number of lanes is “1” based on the lane number information in the lane information. When the result of the first determination is affirmative, the determination unit 740 determines a predetermined range that is symmetric with respect to the traveling direction of the vehicle MV as a reachable range.
- the "predetermined range” is an experiment from the viewpoint of alerting the approach of vehicles to pedestrians and bicycles existing on both sides of the road, taking into account the average road width of roads with "1" lanes. , Based on simulation, experience, etc.
- the determination unit 740 determines whether or not there is an oncoming lane information in the lane information. A second determination is made as to whether an oncoming lane exists. When the result of the second determination is negative, the determination unit 740 estimates that there are pedestrians and the like because there is a possibility that pedestrians and the like exist near the traveling direction of the vehicle MV.
- the specified range for example, the left side in countries where the vehicle has left-hand traffic and the right side in countries where the vehicle has right-hand traffic: hereinafter also referred to as the “pedestrian side”
- a wide range is determined as the vehicle recalled sound reach range. This is because a road with a plurality of lanes has a higher traveling speed of the vehicle MV than a one-lane road, and thus the necessity of calling attention to the approach of the vehicle MV is increased.
- the determination unit 740 is wider than the predetermined range with respect to the pedestrian side and on the opposite lane side with respect to the traveling direction of the vehicle MV. That is, since there is a low possibility that a pedestrian or the like is present, a range narrower than the above-described predetermined range is determined as the reachable range on the side where it is estimated that there is no pedestrian or the like. For example, the determination unit 740 determines a range in which the range on the opposite lane side is minimal as the reachable range.
- the determining unit 740 sends the determined reachable range to the control unit 750.
- the control unit 750 calculates a set sound volume.
- the control unit 750 calculates the predetermined set volume as the set volume of the left speaker and the right speaker.
- the “predetermined sound volume” is determined in advance based on experiments, simulations, experiences, and the like from the viewpoint that the predetermined range described above is the reachable range.
- control unit 750 calculates a set volume larger than the predetermined set volume as the set volume of the speaker on the pedestrian side.
- a set volume smaller than the predetermined set volume is calculated as the set volume of the speaker on the opposite lane side. For example, in the case of a reach range in which the range on the opposite lane side is minimized, the control unit 750 sets the set sound volume so that the vehicle recall sound is not output from the speaker on the opposite lane side.
- the control unit 750 sends the calculated set volume to the sound output unit 760. Then, when receiving the set volume, the sound output unit 760 outputs the vehicle recall sound from the speaker to the outside of the vehicle MV while adjusting the volume according to the set volume.
- the acquisition unit 730A refers to the map information in the storage unit 710 based on the current position of the vehicle MV detected by the position detection unit 720, and the vehicle MV travels. Get lane information including information on the number of lanes in the middle road. Subsequently, acquisition unit 730A sends the acquired lane information to determination unit 740. And the determination part 740 determines the reach
- the first embodiment it is possible to control the output of the vehicle recall sound in consideration of the possibility of the presence of a notification target in the surroundings that changes in accordance with the type of road (number of lanes) that is running.
- the determination unit 740 determines a predetermined range that is symmetrical with respect to the traveling direction of the vehicle MV as the reach range. In addition, when there are a plurality of lanes, the determination unit 740 sets a wider range than the predetermined range for the side where a pedestrian or the like is likely to exist nearby in the traveling direction of the vehicle MV. Determine the range of vehicle recall sound. Furthermore, when there is an oncoming lane, the determination unit 740 narrows a range on the oncoming lane side with respect to the traveling direction of the vehicle MV, that is, on the side where a pedestrian or the like is less likely to exist than a predetermined range. Determine the range as the reach.
- the vehicle recall sound it is possible to output the vehicle recall sound at a reasonable output volume while considering the possibility of the presence of the notification target.
- the storage unit 710, the position detection unit 720, the acquisition unit 730A, the determination unit 740, and the control unit 750 which are elements constituting the vehicle recalling sound generation device 700A, are mounted on the vehicle MV. I made it.
- it can also be set as the structure provided with the server apparatus 810 and the terminal device 910 like the vehicle recalling sound generator 700B shown by FIG. 2, for example.
- the server device 810 includes a storage unit 710, an acquisition unit 730A, and a determination unit 740
- the terminal device 910 includes a position detection unit 720 and a control unit 750.
- vehicle recalling sound generation apparatus 700B when the current position of vehicle MV detected by position detection unit 720 is sent from position detection unit 720 to acquisition unit 730A, and the range of vehicle recalled sound determined by determination unit 740 Is transmitted from the determination unit 740 to the control unit 750, data communication using the communication network 500 is performed, which is different from the above-described vehicle-like sound generation device 700A.
- the server device 820 includes a storage unit 710 and an acquisition unit 730A
- the terminal device 920 includes a position detection unit 720, a determination unit 740, and a control unit 750.
- vehicle recalling sound generator 700C when the current position of vehicle MV detected by position detection unit 720 is sent from position detection unit 720 to acquisition unit 730A, and lane information acquired by acquisition unit 730A is acquired by acquisition unit 730A.
- the data communication using the communication network 500 is performed when the data is sent to the determination unit 740 from the vehicle recalling sound generator 700A.
- each of the storage unit 710, the acquisition unit 730A, and the determination unit 740 may be included in either the server device or the terminal device.
- the position detection unit 720 is uniquely provided.
- the position detection result obtained by a device with a position detection function for example, a mobile phone device with a GPS function
- the vehicle recalling sound generators 700A to 700C are uniquely provided with a storage unit that stores map information, but when other devices (for example, navigation devices) have the function of the storage unit, You may make it access the map information which the said other apparatus has.
- vehicle recalling sound generators 700A to 700C are configured not to include the sound output unit 760 mounted on the vehicle, they may be configured to include the sound output unit 760.
- the acquisition unit 730A acquires the lane information, and the determination unit 740 Based on the acquired lane information, the reach range of the vehicle recall sound output toward the outside of the vehicle is determined.
- the acquisition unit 730A acquires the road width information of the road on which the vehicle is traveling, and the arrival of the vehicle recall sound that the determination unit 740 outputs to the outside of the vehicle based on the acquired road width information.
- the range can also be determined.
- the reach range of the vehicle recall sound is determined as follows.
- the acquisition unit 730A refers to the map information in the storage unit 710 based on the current position of the vehicle MV detected by the position detection unit 720, and acquires the road width information of the road on which the vehicle MV is traveling. Subsequently, acquisition unit 730A sends the acquired road width information to determination unit 740. And the determination part 740 determines the reach
- the determination unit 740 determines that the road width is a predetermined value based on the road width information. A road width determination is made as to whether or not it is below the threshold. When the result of the road width determination is affirmative, the determination unit 740 determines a predetermined range that is symmetric with respect to the traveling direction of the vehicle MV as a reachable range.
- the “predetermined threshold value” is determined in advance based on research, experience, and the like from the viewpoint that it is not easy for vehicles to pass each other and pedestrians and bicycles may pass on both sides of the road. .
- the “predetermined range” is determined in advance based on experiments, simulations, experiences, and the like from the viewpoint of alerting pedestrians and bicycles on both sides of a road below a predetermined threshold to approach the vehicle.
- the determination unit 740 refers to the map information in the storage unit 710 based on the current position, and is assumed to have an oncoming lane. The opposite lane is determined whether or not the vehicle is traveling.
- the determination unit 740 determines whether the pedestrian or the like is likely to exist nearby in the direction of travel of the vehicle MV (the country where the vehicle is a left-handed legal system). In the case of the left side and the right side in the country where the vehicle is on the right side), a wider range than the predetermined range is determined as the reachable range.
- the determination unit 740 determines that the area on the opposite lane side, that is, the side on which the pedestrian or the like is less likely to exist with respect to the traveling direction of the vehicle MV. A range that is minimal is determined as the reach.
- FIG. 4 shows a schematic configuration of a vehicle-like sound generation device 790 that performs the control.
- vehicle recalling sound generation device 790 is mounted on vehicle MV, similarly to vehicle recalling sound generation device 700A described above.
- the vehicle recalling sound generation device 790 is different from the vehicle recalling sound generation device 700A in that it does not include the acquisition unit 730A, includes a determination unit 745 instead of the determination unit 740, a travel information acquisition unit 725, and a calculation unit. 735 is different.
- description will be given mainly focusing on these differences.
- the traveling information acquisition unit 725 described above acquires the traveling direction of the vehicle MV.
- the traveling direction acquired by the travel information acquisition unit 725 is sent to the calculation unit 735.
- the calculation unit 735 receives the current position of the vehicle MV sent from the position detection unit 720 and the traveling direction of the vehicle MV sent from the travel information acquisition unit 725. And the calculation part 735 refers to the map information in the memory
- the determination unit 745 determines the reach range of the vehicle recall sound that the sound output unit 760 outputs to the outside of the vehicle.
- the determined range of the vehicle recall sound is sent to the control unit 750. The determination process by the determination unit 745 will be described later.
- the position detection unit 720 detects the current position of the vehicle MV and periodically sends the detected current position to the calculation unit 735.
- the travel information acquisition unit 725 periodically acquires the traveling direction of the vehicle MV and sends the acquired traveling direction to the calculation unit 735.
- the calculation unit 735 Upon receiving the current position and the traveling direction of the vehicle MV, the calculation unit 735 refers to the map information in the storage unit 710 and determines the road to the intersection of the road on which the vehicle MV is traveling and another road. Calculate the mileage. Then, the calculation unit 735 sends the calculated distance to the determination unit 745.
- the determining unit 745 Upon receiving the calculated distance sent from the calculating unit 735, the determining unit 745 determines whether the calculated distance is equal to or less than a predetermined distance. If the result of the intersection position distance determination is negative, the determination unit 745 determines a range determined without being conscious of the existence of the intersection as a vehicle recalled sound reachable range. For example, as in the case of the determination unit 740 described above, when the lane information is supplied to the determination unit 745, it is possible to determine the reach range of the vehicle evoked sound in the same manner as the determination unit 740 described above.
- the determination unit 745 refers to the map information in the storage unit 710, and other roads that intersect with the traveling road are left, right, and It is determined whether it extends to the left or right side.
- the determination unit 745 has a wider range on the traveling direction side and the left side of the vehicle MV than when the result of the intersection position distance determination is negative, A range including at least the intersection position is determined as the reach range.
- the determination unit 745 has a wider range on the traveling direction side and the right side of the vehicle MV than when the result of the intersection position distance determination is negative, and at least The range including the intersection position is determined as the reach range. Furthermore, when other roads extend to the left and right sides, the determination unit 745 is symmetric with respect to the traveling direction of the vehicle MV, and is wider than the case where the result of the intersection position distance determination is negative. A range that includes at least the intersection position on the side close to the vehicle MV is determined as the reach range.
- the determination unit 745 narrows the reach range as the calculated distance becomes shorter, and when the calculated distance becomes “0”, the result of the intersection position distance determination is The range determined is the same as the range determined in the case of negative.
- the determining unit 745 sends the determined reachable range to the control unit 750.
- the control unit 750 calculates a set sound volume corresponding to the reachable range.
- the control unit 750 sends the calculated set volume to the sound output unit 760.
- the sound output unit 760 outputs the vehicle recall sound from the speaker to the outside of the vehicle MV while adjusting the volume according to the volume setting.
- the vehicle recalling sound generation device 790 when the distance from the current position of the vehicle MV to the intersection position with another road in the traveling direction of the vehicle MV becomes shorter than the predetermined distance, It is possible to appropriately control the output of the vehicle recall sound in consideration of pedestrians and the like existing in the vicinity.
- the determining unit 745 detects the detected vehicle speed based on the detection result of the vehicle speed. May be calculated as a predetermined distance.
- the vehicle-like sound generating device 790 can be modified in the same manner as the vehicle-like sound generating device 700B or 700C described above with respect to the vehicle-like sound generating device 700A. That is, as a configuration including the server device and the terminal device, it is essential that the terminal device mounted on the vehicle MV includes the control unit 750, the storage unit 710, the position detection unit 720, the travel information acquisition unit 725, the calculation unit 735, Each of the determination unit 745 may be provided in either the server device or the terminal device.
- FIG. 5 shows a schematic configuration of a vehicle recalling sound generator 700D according to the second embodiment.
- vehicle recalling sound generation device 700D is mounted on vehicle MV, similarly to vehicle recalling sound generation device 700A described above.
- the vehicle recalling sound generation device 700D includes a photographing unit 770 instead of the storage unit 710 and the position detection unit 720, and an acquisition unit 730B instead of the acquisition unit 730A, as compared with the vehicle recalling sound generation device 700A.
- the point to prepare is different. Hereinafter, description will be made mainly focusing on these differences.
- the above-described photographing unit 770 includes a camera device that photographs the surroundings of the vehicle MV.
- the captured image that is the result of imaging by the imaging unit 770 is sequentially sent to the acquisition unit 730B.
- the acquisition unit 730B receives the captured image sent from the imaging unit 770. And the acquisition part 730B analyzes the said picked-up image, and acquires the lane number information of the road on which the vehicle MV is drive
- photography part 770 is image
- the obtaining unit 730B that has received the photographed image sent from the photographing unit 770 analyzes the photographed image, and obtains the lane number information of the road on which the vehicle MV is traveling and the presence / absence information of the oncoming lane.
- the information on the number of lanes and the information on the presence or absence of the oncoming lane thus obtained are sent to the determination unit 740 as lane information.
- the determination unit 740 determines the reachable range, and the control unit 750 calculates the set sound volume based on the determined reachable range. Then, the sound output unit 760 outputs the vehicle recall sound from the speaker to the outside of the vehicle MV while adjusting the volume according to the calculated set volume.
- the acquisition unit 730B analyzes the captured image around the vehicle MV sent from the imaging unit 770, and includes the lane number information of the road on which the vehicle MV is traveling. Get lane information. Subsequently, the acquisition unit 730B sends the acquired lane information to the determination unit 740. And the determination part 740 determines the reach
- vehicle recall that takes into account the possibility of the presence of a notification target in the surroundings that changes in accordance with the type of road (number of lanes) that is running. Sound output control can be performed.
- the determining unit 740 when the number of lanes is “1”, the determining unit 740 has a predetermined range that is symmetrical with respect to the traveling direction of the vehicle MV. Is determined as the reach. In addition, when there are a plurality of lanes, the determination unit 740 sets a wider range than the predetermined range for the side where a pedestrian or the like is likely to exist nearby in the traveling direction of the vehicle MV. Determine the range of vehicle recall sound. Furthermore, when the oncoming lane exists, the determining unit 740 has a predetermined range on the opposite lane side with respect to the traveling direction of the vehicle MV, that is, on the side where it is estimated that there is no pedestrian or the like. A narrow range is determined as the reach.
- the second embodiment it is possible to output the vehicle recall sound at a reasonable output volume while considering the possibility of the presence of the notification target.
- the second embodiment can be modified similarly to the first embodiment described above. That is, it is good also as a structure provided with a server apparatus and a terminal device similarly to the deformation
- the terminal device mounted on the vehicle MV includes the control unit 750 and the imaging unit 770.
- the server device or the terminal device is used for each of the acquisition unit 730B and the determination unit 740. You may make it prepare.
- the photographing unit is uniquely provided.
- a photographing device for example, a vehicle-mounted front camera, a mobile phone with a photographing function, etc.
- the second embodiment can be combined with “control of the reach range of the vehicle recalled sound in consideration of the distance to the intersection” as in the case of the first embodiment.
- the lane information includes the lane number information and the presence / absence information of the oncoming lane.
- the lane information indicates which lane the vehicle MV is traveling on.
- Lane information may be further included. In this case, when driving on a road having multiple lanes and no opposite lane, the distance between the vehicle MV and a position where there is a high possibility that a pedestrian or other alert target person exists.
- the reachable range of the vehicle recall sound can be determined, and the vehicle recall sound corresponding to the determined reachable range can be output.
- the vehicle-like sound generation device of the first and second embodiments is configured as a computer device including a computer as a calculation unit, and the functions of the acquisition units 730A and 730B, the determination unit 740, and the control unit 750 described above.
- FIG. 6 shows a schematic configuration of a navigation device 100 ⁇ / b> A having a function as the vehicle recalling sound generating device according to the first embodiment.
- the navigation device 100A is an aspect of the above-described vehicle-like sound generation device 700A (see FIG. 1) according to the first embodiment.
- the navigation device 100A is mounted on a vehicle CR that travels on a road using an electric motor as a drive mechanism.
- the vehicle CR is equipped with a vehicle speed sensor 210, an accelerator information sensor 220, and a rotation speed information sensor 230 that are connected to the navigation device 100A.
- the vehicle speed sensor 210 detects the rotation of the wheel or axle of the vehicle CR.
- the accelerator information sensor 220 detects an accelerator depression amount corresponding to the accelerator opening.
- the rotation speed information sensor 230 detects the rotation speed of the electric motor.
- the navigation device 100A includes a control unit 110A, a storage unit 120 as a storage unit 710, and a pseudo engine sound output unit 130 as a sound output unit 760, as shown in FIG.
- the navigation device 100A includes an audio output unit 140, a display unit 150, and an operation input unit 160.
- the navigation device 100A includes a travel information acquisition unit 170A and a GPS reception unit 180 as a part of the position detection unit 720.
- the above control unit 110A performs overall control of the entire navigation device 100A.
- the control unit 110A will be described later.
- the storage unit 120 includes a hard disk device that is a nonvolatile storage device.
- the storage unit 120 stores various data including map information data MPD including road network data, lane number information data, oncoming road presence / absence information, and the like used in the navigation device 100A.
- the storage unit 120 can be accessed by the control unit 110A.
- the pseudo engine sound output unit 130 receives the accelerator information AR, the rotation speed information ER, and the set sound volumes VLC L and VLC R sent from the control unit 110A. Then, the pseudo engine sound output unit 130 generates a pseudo engine sound based on the accelerator information AR, the rotation speed information ER, and the set sound volumes VLC L and VLC R , and outputs it to the outside of the vehicle. Details of the configuration of the pseudo engine sound output unit 130 will be described later.
- the audio output unit 140 includes a speaker, and outputs audio corresponding to the audio data received from the control unit 110A to the vehicle interior.
- the voice output unit 140 outputs voice for guiding guidance such as a change in the traveling direction, traveling condition, traffic condition, and planned traveling route of the vehicle CR under the control of the control unit 110A.
- the display unit 150 includes a display device such as a liquid crystal panel, and displays an image corresponding to the display data received from the control unit 110A.
- the display unit 150 displays map information, images such as route information, guidance information, and the like under the control of the control unit 110A.
- the operation input unit 160 is configured by a key unit provided in the main body of the navigation device 100A and / or a remote input device including the key unit.
- a key part provided in the main body part a touch panel provided in a display device of the display unit 150 can be used.
- it can replace with the structure which has a key part, or can also employ
- the operation content of the navigation device 100A is set and an operation command is performed.
- the user uses the operation input unit 160 to make settings such as designation of a destination and selection of a travel route in the searched route.
- Such input contents are sent as operation input data from the operation input unit 160 to the control unit 110A.
- the traveling information acquisition unit 170A described above includes an acceleration sensor, an angular velocity sensor, and the like, and detects acceleration and angular velocity acting on the vehicle CR.
- the travel information acquisition unit 170 ⁇ / b> A receives detection results sent from the vehicle speed sensor 210, the accelerator information sensor 220, and the rotation speed information sensor 230 mounted on the vehicle CR. Then, the detection results sent from these sensors are converted into a form that can be handled by the control unit 110A. Each data obtained by the detection or conversion in the travel information acquisition unit 170A is sent to the control unit 110A as travel data.
- the GPS receiving unit 180 described above calculates the current position of the vehicle CR based on reception results of radio waves from a plurality of GPS satellites.
- the GPS receiving unit 180 counts the current time based on the date / time information transmitted from the GPS satellite. Information regarding these current position and current time is sent to the control unit 110A as GPS data.
- the control unit 110A includes a central processing unit (CPU) and its peripheral circuits.
- CPU central processing unit
- the control unit 110A executes various programs, the functions of the position detection unit 720, the acquisition unit 730A, the determination unit 740, and the control unit 750 described above are realized.
- the control unit 110A appropriately refers to the data in the storage unit 120 based on the driving data sent from the driving information acquisition unit 170A and the GPS data sent from the GPS receiving unit 180, and navigation information to the user. Provide the processing.
- the navigation information providing process includes (a) a map display for displaying a map of an area designated by the user on the display device of the display unit 150, (b) where the vehicle CR is located on the map, The display unit is used to calculate which direction it is heading and display it on the display device of the display unit 150 and present it to the user. Processing for displaying guidance guidance on 150 display devices and processing for outputting voice for guidance guidance from the speaker of the audio output unit 140 are included.
- control unit 110A calculates the set sound volumes VLC L and VLC R based on the map matching result and the map information data MPD, and sends the calculated set sound volumes VLC L and VLC R to the pseudo engine sound output unit 130. This calculation process will be described later.
- control unit 110A is configured to send the acquisition result of the accelerator information and the rotational speed information to the pseudo engine sound output unit 130 as the accelerator information AR and the rotational speed information ER.
- the pseudo engine sound output unit 130 includes a pseudo engine sound signal generation unit 131 and a DA conversion unit (Digital to Analogue) 132. Further, the pseudo engine sound output unit 130 includes sound volume adjustment units 133 L and 133 R , power amplification units 134 L and 134 R , and speakers 135 L and 135 R.
- a pseudo engine sound signal generation unit 131 includes a pseudo engine sound signal generation unit 131 and a DA conversion unit (Digital to Analogue) 132.
- the pseudo engine sound output unit 130 includes sound volume adjustment units 133 L and 133 R , power amplification units 134 L and 134 R , and speakers 135 L and 135 R.
- the pseudo engine sound signal generation unit 131 includes a waveform table in which a waveform pattern associated with a combination of accelerator information and rotation speed information is registered.
- the accelerator information AR and the rotational speed information ER sent from the control unit 110A are received.
- the pseudo engine sound signal generation unit 131 reads the waveform pattern registered in the internal waveform table in association with the combination of the accelerator information AR and the rotation speed information ER.
- the pseudo engine sound signal generation unit 131 generates a pseudo engine sound signal that is a digital signal based on the read waveform pattern.
- the pseudo engine sound signal generated in this way is sent to the DA converter 132.
- the DA converter 132 includes a DA converter.
- the DA converter 132 receives the pseudo engine sound signal sent from the pseudo engine sound signal generator 131.
- the DA converter 132 converts the pseudo engine sound signal into an analog signal.
- the analog conversion signal obtained by the conversion by the DA conversion unit 132 is sent to the volume adjustment units 133 L and 133 R.
- Each of the volume adjusters 133 L and 133 R is configured with an electronic volume element or the like. These volume adjusters 133 L and 133 R perform a volume adjustment process on the analog conversion signal sent from the DA converter 132 in accordance with the set volumes VLC L and VLC R sent from the control unit 110A. Volume adjustment signals, which are adjustment results by the volume adjustment units 133 L and 133 R , are sent to the power amplification units 134 L and 134 R , respectively.
- Each of the power amplification units 134 L and 134 R includes a power amplifier. These power amplifying units 134 L and 134 R receive the volume adjustment signals sent from the volume adjustment units 133 L and 133 R. Then, the power amplifier unit 134 L is a volume control signal sent from the sound volume adjustment unit 133 L to power amplification. The power amplification unit 134 R power-amplifies the volume adjustment signal sent from the volume adjustment unit 133 R. Output sound signals that are amplification results by the power amplifiers 134 L and 134 R are sent to the speakers 135 L and 135 R , respectively.
- the above speaker 135 L is installed on a vehicle CR as left front of the vehicle CR is a sound output direction.
- the speaker 135 L outputs a pseudo engine sound to the left front of the vehicle CR in accordance with the output sound signal sent from the power amplifier 134 L.
- the speaker 135 R is installed in the vehicle CR so that the right front of the vehicle CR is the sound output direction. This speaker 135 R outputs a pseudo engine sound to the right front of the vehicle CR according to the output sound signal sent from the power amplifier 134 R.
- step S11 the control unit 110A specifies the current position of the vehicle CR based on the map matching result.
- step S12 the control unit 110A refers to the map information data MPD in the storage unit 120 based on the current position of the vehicle CR, and the lane number information of the road on which the vehicle CR is traveling in the traveling direction.
- the lane information including the presence / absence information of the oncoming lane is acquired.
- step S13 the control unit 110A determines whether or not the number of lanes on the road on which the vehicle CR is traveling is “1”. If the result of this determination is affirmative (step S13: Y), the process proceeds to step S14. In step S14, the control unit 110A performs single lane processing to calculate the set sound volumes VLC L and VLC R.
- the control unit 110A first determines a reach range BPA (see FIG. 9) symmetrical to the traveling direction of the vehicle CR as the reach range of the pseudo engine sound. Subsequently, the control unit 110A calculates the set sound volumes VLC L and VLC R of the speakers 135 L and 135 R corresponding to the reachable range BPA.
- the “arrival range BPA” is based on experiments, simulations, experiences, etc. Determined.
- step S13 If the result of the determination in step S13 is negative (step S13: N), the process proceeds to step S15.
- step S15 the control unit 110A determines whether or not there is an oncoming lane on the traveling road.
- step S15 If the result of the determination in step S15 is affirmative (step S15: Y), the process proceeds to step S16.
- step S16 the control unit 110A performs the first multiple lane process to calculate the set sound volumes VLC L and VLC R.
- the control unit 110A first minimizes the range on the opposite lane side, that is, the side where a pedestrian or the like is unlikely to exist with respect to the traveling direction of the vehicle CR. With respect to the side where there is a high possibility that a pedestrian or the like is present in the vicinity of the travel direction, a wider range than the reach range BPA is determined as the reach range FPA (see FIG. 10). Subsequently, the control unit 110A calculates the set sound volumes VLC L and VLC R of the speaker 135 L and the speaker 135 R corresponding to the determined reachable range.
- the pseudo engine sound is not output from the speaker on the opposite lane side in the first multiple lane processing.
- step S15 If the result of the determination in step S15 is negative (step S15: N), the process proceeds to step S17.
- step S17 the control unit 110A performs the second multiple lane process to calculate the set sound volumes VLC L and VLC R.
- the control unit 110A first sets the range on the pedestrian side relative to the traveling direction of the vehicle CR to be wider than the reach range BPA, and the range on the opposite side of the pedestrian side is the reach range.
- a range that is the same as in the case of BPA is determined as the reach range SPA (see FIG. 11).
- the control unit 110A calculates the set sound volumes VLC L and VLC R of the speaker 135 L and the speaker 135 R corresponding to the determined reachable range.
- the control unit 110A sends the calculated set sound volumes VLC L and VLC R to the pseudo engine sound output unit 130. Then, the process returns to step S11. Thereafter, the processing of steps S11 to S17 is repeated, and the set sound volumes VLC L and VLC R are sequentially calculated. Then, the calculated set sound volumes VLC L and VLC R are sent to the pseudo engine sound output unit 130.
- the pseudo engine sound signal generation unit 131 In the pseudo engine sound output unit 130, the pseudo engine sound signal generation unit 131 generates a pseudo engine sound signal based on the accelerator information AR and the rotation speed information ER sent from the control unit 110A. Subsequently, the DA converter 132 converts the pseudo engine sound signal into an analog conversion signal.
- the volume adjusters 133 L and 133 R perform volume adjustment processing on the analog conversion signal according to the set volumes VLC L and VLC R calculated by the control unit 110A. Then, the volume adjustment unit 133 L sends the volume adjustment result to the power amplification unit 134 L , and the volume adjustment unit 133 R sends the volume adjustment result to the power amplification unit 134 R. Subsequently, the output sound signal is generated is power amplified by the power amplifier unit 134 L is are directed to the speaker 135 L, the output sound signal is generated is power amplified by the power amplifier unit 134 R is sent to the speaker 135 R .
- the pseudo engine sound is output from the speaker 135 L to the left front of the vehicle CR according to the output sound signal sent from the power amplifier 134 L. Further, a pseudo engine sound is output from the speaker 135 R to the right front of the vehicle CR in accordance with the output sound signal sent from the power amplifier 134 R.
- the control unit 110A refers to the map information data MPD in the storage unit 120 based on the current position of the vehicle CR, and the number of lanes on the road on which the vehicle CR is traveling. Lane information including information and presence / absence information of the oncoming lane is acquired. Then, the control unit 110A determines the reach range of the pseudo engine sound output toward the outside of the vehicle based on the acquired lane information, and the speaker 135 of the pseudo engine sound output unit 130 based on the determined reach range. setting of the pseudo engine sound to be output from the L and the speaker 135 R volume VLC L, calculates a VLC R. As a result, the pseudo engine sound having the sound volume corresponding to the set sound volumes VLC L and VLC R is output from the speaker 135 L and the speaker 135 R of the pseudo engine sound output unit 130 to the outside of the vehicle.
- the first embodiment it is possible to appropriately perform the output control of the pseudo engine sound in consideration of the possibility of the presence of the notification target in the surroundings that changes corresponding to the type of road that is running.
- the control unit 110A determines a predetermined range BPA that is symmetrical with respect to the traveling direction of the vehicle CR as the reach range.
- the control unit 110A has a wider range on the side where a pedestrian or the like is likely to exist near the traveling direction of the vehicle CR than the predetermined range BPA. Is determined as the reach of the vehicle recall sound.
- the control unit 110A reaches a range in which the oncoming lane side, that is, the side on which the pedestrian or the like is less likely to be present is minimized with respect to the traveling direction of the vehicle CR. Decide on a range.
- the pseudo engine sound can be output outside the vehicle at a reasonable output volume while considering the possibility of the presence of the notification target.
- FIG. 12 shows a schematic configuration of a pseudo engine sound generator 100B as a vehicle-like sound generator according to the second embodiment.
- the pseudo engine sound generation device 100B is an aspect of the vehicle-like sound generation device 700D (see FIG. 5) of the second embodiment described above.
- the pseudo engine sound generating device 100B is mounted on a vehicle CR that travels on a road using an electric motor as a drive mechanism, similarly to the navigation device 100A described above.
- the vehicle CR is equipped with an accelerator information sensor 220 and a rotation speed information sensor 230 connected to the navigation device 100A.
- the pseudo engine sound generator 100B includes a control unit 110B and a pseudo engine sound output unit 130 as a sound output unit 760, as shown in FIG.
- the pseudo engine sound generation device 100B includes a travel information acquisition unit 170B, a GPS reception unit 180 as a position detection unit 720, and a shooting unit 190 as a shooting unit 770.
- the control unit 110B performs overall control of the pseudo engine sound generator 100B.
- the control unit 110B will be described later.
- the traveling information acquisition unit 170B receives the detection result sent from the accelerator information sensor 220 and the rotation speed information sensor 230 mounted on the vehicle CR. Then, the detection results sent from these sensors are converted into a form that can be handled by the control unit 110B. Each data thus obtained by the conversion in the travel information acquisition unit 170B is sent to the control unit 110B as travel data.
- the above-described photographing unit 190 is configured to include a camera device that photographs the periphery of the vehicle CR. Captured image data, which is a result of photographing by the photographing unit 190, is sequentially sent to the control unit 110B.
- the control unit 110B includes a central processing unit (CPU) and its peripheral circuits.
- CPU central processing unit
- the control unit 110B executes various programs, the functions as the acquisition unit 730B, the determination unit 740, and the control unit 750 described above are realized.
- the control unit 110 ⁇ / b> B receives the captured image data sent from the imaging unit 190.
- the control unit 110B analyzes the captured image and acquires lane information including the lane number information of the road on which the vehicle CR is traveling, the presence / absence information of the oncoming lane, and the traveling lane position information. Then, the control unit 110B calculates the set sound volumes VLC L and VLC R based on the acquired lane information, and sends the calculated set sound volumes VLC L and VLC R to the pseudo engine sound output unit 130. This calculation process will be described later.
- control unit 110B sends the acquisition result of the accelerator information and the rotational speed information to the pseudo engine sound output unit 130 as the accelerator information AR and the rotational speed information ER.
- the operation of the pseudo engine sound generation apparatus 100B configured as described above will be described mainly focusing on the processing by the control unit 110B when generating the pseudo engine sound. It is assumed that the accelerator information sensor 220 and the rotation speed information sensor 230 perform a detection operation and send the detection result to the pseudo engine sound generation device 100B. In addition, it is assumed that the photographing unit 190 performs photographing around the vehicle CR and sequentially sends photographing results to the control unit 110B. Further, whenever the control unit 110B receives the detection results from the accelerator information sensor 220 and the rotation speed information sensor 230, the control unit 110B immediately transmits the accelerator information AR and the rotation speed information ER reflecting the detection results to the pseudo engine sound output unit 130. Assume that you are sending.
- step S ⁇ b> 21 the control unit 110 ⁇ / b> B collects data of a photographed image newly sent from the photographing unit 190. Subsequently, in step S22, the control unit 110B analyzes the data of the newly collected captured image, information on the number of lanes on the road on which the vehicle CR is traveling in the traveling direction, the presence / absence information on the oncoming lane, and The lane information including the traveling lane position information is acquired.
- step S23 the control unit 110B determines whether or not the number of lanes on the road on which the vehicle CR is traveling is “1”. If the result of this determination is affirmative (step S23: Y), the process proceeds to step S24.
- step S24 as in step S14 described above, the control unit 110B performs single lane processing to calculate the set sound volumes VLC L and VLC R.
- step S23 If the result of the determination in step S23 is negative (step S23: N), the process proceeds to step S25.
- step S25 the control unit 110B determines whether or not there is an oncoming lane on the traveling road.
- step S25 If the result of the determination in step S25 is affirmative (step S25: Y), the process proceeds to step S26.
- step S26 the control unit 110B performs the first ′ multiple lane process in which the first multiple lane process in step S16 described above is changed, and calculates the set sound volumes VLC L and VLC R.
- the control unit 110B first determines whether the lane in which the vehicle CR is traveling is the pedestrian side lane, that is, the lane in which the vehicle CR is traveling is the outermost side.
- the lane position is determined whether or not the vehicle is in the lane. For example, when the vehicle CR has only one lane for traveling in the traveling direction, the result of the lane position determination is affirmative.
- control unit 110B determines a range similar to that in step S16 described above as the reach range of the pseudo engine sound. On the other hand, if the result of the lane position determination is negative, the control unit 110B determines the reach range of the pseudo engine sound to be minimal. Subsequently, the control unit 110B calculates the set sound volumes VLC L and VLC R of the speaker 135 L and the speaker 135 R corresponding to the determined reachable range.
- the pseudo engine sound is output from the speaker 135 L and the speaker 135 R to the outside of the vehicle. Do not let the volume setting.
- step S25 If the result of the determination in step S25 is negative (step S25: N), the process proceeds to step S27.
- step S27 the control unit 110B performs the second ′ multiple lane process in which the second multiple lane process in step S17 described above is changed, and calculates the set sound volumes VLC L and VLC R.
- the control unit 110B first determines the lane position whether or not the lane in which the vehicle CR is traveling is the outermost lane. When the result of the lane position determination is affirmative, the control unit 110B specifies which is the outermost side on the left or right side. Then, the control unit 110B determines, as the reach range of the pseudo engine sound, a range that is wider than the reach range BPA for the specified side and that has a minimum range for the side opposite to the specified side. To do.
- FIGS. 14 and 15 Examples of the reach range thus determined are shown in FIGS. 14 and 15.
- FIG. 14 shows an example of the reach range SPAL when the specified side is the left side
- FIG. 15 shows an example of the reach range SPAR when the specified side is the right side. It is shown.
- control unit 110B determines the reach range of the pseudo engine sound to be minimal.
- control unit 110B calculates the set sound volumes VLC L and VLC R of the speaker 135 L and the speaker 135 R corresponding to the determined reach range.
- the speaker 135 L and from any of the speakers 135 R are also adapted to perform volume setting not to output a pseudo engine sound to the outside of the vehicle.
- the control unit 110B sends the calculated set sound volumes VLC L and VLC R to the pseudo engine sound output unit 130. Then, the process returns to step S21. Thereafter, the processing of steps S21 to S27 is repeated, and the set sound volumes VLC L and VLC R are sequentially calculated. Then, the calculated set sound volumes VLC L and VLC R are sent to the pseudo engine sound output unit 130.
- the pseudo engine sound output unit 130 that has received the set sound volumes VLC L and VLC R performs the same operation as in the first embodiment described above. As a result, the pseudo engine sound having the sound volume according to the set sound volumes VLC L and VLC R is output from the speakers 135 L and 135 R.
- the control unit 110B analyzes the surrounding image photographed by the photographing unit 190, and obtains the lane number information of the road on which the vehicle CR is traveling and the presence / absence information of the oncoming lane. Get lane information including. Then, the control unit 110B determines the reach range of the pseudo engine sound output toward the outside of the vehicle based on the acquired lane information, and the speaker 135 of the pseudo engine sound output unit 130 based on the determined reach range. setting of the pseudo engine sound to be output from the L and the speaker 135 R volume VLC L, calculates a VLC R. As a result, the pseudo engine sound having the sound volume corresponding to the set sound volumes VLC L and VLC R is output from the speaker 135 L and the speaker 135 R of the pseudo engine sound output unit 130 to the outside of the vehicle.
- the output control of the pseudo engine sound in consideration of the possibility of the presence of the notification target in the surroundings that changes in accordance with the type of road that is running Can be performed appropriately.
- the control unit 110B determines a predetermined range BPA that is symmetrical with respect to the traveling direction of the vehicle CR as the reach range. Further, when there are a plurality of lanes, the control unit 110B determines the reach range of the vehicle evoked sound depending on whether or not the lane in which the vehicle CR is traveling is the outermost lane.
- the pseudo engine sound can be output to the outside of the vehicle with a reasonable output volume while carefully considering the possibility of the presence of the notification target.
- the lane number information and the oncoming lane presence / absence information are acquired, and the reach range of the pseudo engine sound is determined based on the acquired information.
- the traveling lane position information may be further acquired, and the reach range of the pseudo engine sound may be determined based on the acquired information.
- the navigation device including the storage unit storing the map information and the function of detecting the current position of the vehicle realizes the function of the vehicle-like sound generation device of the present invention.
- the vehicle-like sound generation device of the present invention may be configured as a device independent of a navigation device or the like. In this case, with regard to the function of storing map information including lane information and the function of detecting the current position of the vehicle, when other devices have these functions, the functions of the other devices should be used. Can do.
- the range of the pseudo engine sound on the side where it is estimated that there is a high possibility that a pedestrian or other alerting target is present nearby while traveling on a road with multiple lanes. Is made wider than in the case of the reach range BPA.
- a low volume engine sound may be output from a speaker for outputting the engine sound to the side where it is estimated that there is a low possibility that the alert target is present nearby.
- the pseudo engine sound output unit 130 includes the two speakers 135 L and 135 R having a fixed sound output.
- the reachable range may be determined by providing at least one speaker mounted on a member capable of controlling the above.
- the pseudo engine sound output unit 130 generates a pseudo engine sound having a waveform pattern determined based on the accelerator information AR and the rotation speed information ER.
- a simulated engine sound having a waveform pattern may be generated. In this case, acquisition of detection results by the accelerator information sensor 220 and the rotation speed information sensor 230 is not necessary.
- the vehicle speed is not directly taken into account when determining the reach range of the pseudo engine sound.
- the faster the vehicle speed the wider the reach range of the pseudo engine sound. May be.
- the reach range of the pseudo engine sound is determined without considering traffic conditions such as traffic jams.
- the reach range of the pseudo engine sound may be determined in consideration of traffic conditions such as traffic jams, such as not outputting the engine sound outside the vehicle.
- all the elements necessary for controlling the output of the pseudo engine sound are mounted on the vehicle CR.
- a part of the necessary elements may be mounted on the terminal device mounted on the vehicle CR, and the remaining part may be mounted on the server device installed outside the vehicle.
- the road width information of the road on which the vehicle is traveling is acquired, and the reach range of the vehicle recall sound to be output to the outside of the vehicle is determined based on the acquired road width information. it can.
- the resource for detecting the position of the vehicle CR is uniquely provided.
- a device with a position detection function for example, a mobile phone with a GPS function
- the present invention is applied to a device that is mounted on an electric vehicle that employs an electric motor as a drive mechanism and generates pseudo engine sound.
- the present invention may be applied to an apparatus mounted on a so-called hybrid vehicle using both of the above. Furthermore, you may apply this invention to the apparatus mounted in vehicles other than a motor vehicle.
- control process for generating the vehicle-like sound is performed by executing the program by the computer.
- all or part of the control for generating the vehicle-like sound is performed by a dedicated LSI. It may be performed by hardware using (Large Scale Integrated Circuit) or the like.
- control of the reach range of the pseudo engine sound in consideration of the distance to the intersection can be combined with the control of the reach range of the pseudo engine sound based on the lane information in the first and second examples and the embodiment described above. Will be described. Hereinafter, description will be made assuming that the control unit 110A in the navigation device 100A of the first embodiment performs the control.
- the vehicle speed sensor 210, the accelerator information sensor 220, and the rotation speed information sensor 230 are performing a detection operation and sending a detection result to the navigation device 100A. Further, whenever the control unit 110A receives the detection results from the accelerator information sensor 220 and the rotation speed information sensor 230, the control unit 110A immediately transmits the accelerator information AR and the rotation speed information ER reflecting the detection results to the pseudo engine sound output unit 130. Assume that you are sending.
- step S31 the control unit 110A specifies the current position and the traveling direction of the vehicle CR based on the map matching result. Further, the control unit 110A identifies the vehicle speed of the vehicle CR based on the detection result by the vehicle speed sensor 210.
- step S32 the control unit 110A refers to the map information data MPD in the storage unit 120 based on the current position and the traveling direction of the vehicle CR, and the road on which the vehicle CR is traveling in the traveling direction.
- the travel distance (CPD) to the next intersection with another road is specified.
- step S33 the control unit 110A calculates a reference distance (TCD) to the intersection position based on the vehicle speed.
- TCD reference distance
- step S34 the control unit 110A determines whether or not the travel distance (CPD) to the intersection position is equal to or less than the reference distance (TCD) to the intersection position. If the result of this determination is negative (step S34: N), the process proceeds to step S35.
- step S35 the control unit 110A performs steady output processing.
- the control unit 110A determines an arrival range FPA (see FIG. 17) that is symmetrical with respect to the traveling direction of the vehicle CR as the arrival range of the pseudo engine sound.
- the “arrival range FPA” is determined in advance based on experiments, simulations, experiences, and the like from the viewpoint of calling attention to pedestrians and bicycles on both sides of a single lane road.
- control unit 110A calculates the set sound volumes VLC L and VLC R of the speaker 135 L and the speaker 135 R corresponding to the reachable range FPA. Then, the control unit 110A sends the calculated set sound volumes VLC L and VLC R to the pseudo engine sound output unit 130.
- step S34 the control unit 110A performs an enlarged range output process.
- the control unit 110A refers to the map information data MPD in the storage unit 120, and other roads that intersect with the running road extend to any of the left side, right side, and left and right sides. It is determined whether. When the other road extends only to the left side, the control unit 110A crosses the reach range including at least the intersection position, which is wider than the predetermined range on the traveling direction side and the left side of the vehicle CR. Determined according to the distance traveled to the position.
- the control unit 110A sets a range that is wider than the predetermined range on the traveling direction side and the right side of the vehicle CR and includes at least the intersection position. Determine according to the distance traveled. Furthermore, when other roads extend to the left and right sides, the control unit 110A is symmetric with respect to the traveling direction of the vehicle CR and is wider than the reachable range FPA and includes at least an intersection position. The reach range is determined corresponding to the travel distance to the intersection position.
- control unit 110A narrows the reach range as the travel distance to the intersection position becomes shorter, and when the travel distance to the intersection position becomes 0, the control unit 110A (See FIG. 17).
- control unit 110 calculates the set sound volumes VLC L and VLC R of the speaker 135 L and the speaker 135 R corresponding to the determined reachable range. Then, the control unit 110 sends the calculated set sound volumes VLC L and VLC R to the pseudo engine sound output unit 130.
- step S35 or step S36 described above ends, the process returns to step S31. Thereafter, the processing of steps S31 to S36 is repeated, and the set sound volumes VLC L and VLC R are sequentially calculated. Then, the calculated set sound volumes VLC L and VLC R are sent to the pseudo engine sound output unit 130.
- the vehicle-recognized sound that takes into account pedestrians and the like that exist near the intersection can be appropriately controlled.
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Abstract
Description
まず、本発明の第1実施形態を、図1を参照して説明する。
図1には、第1実施形態に係る車両想起音発生装置700Aの概略的な構成が示されている。この図1に示されるように、車両想起音発生装置700Aは、車両MVに搭載され、音出力部760が接続されるようになっている。
次に、上記のように構成された車両想起音発生装置700Aの動作について説明する。なお、位置検出部720は、車両MVの現在位置を検出し、検出された現在位置を定期的に取得部730Aへ送っているものとする。
上記の第1実施形態については、様々な変形が可能である。
次に、上述の第1実施形態における車線情報に基づく車両想起音の到達範囲の制御と組み合わせることができる「交差点までの距離を考慮した車両想起音の到達範囲の制御」について説明する。
図4には、当該制御を行う車両想起音発生装置790の概略的な構成が示されている。この図4に示されるように、車両想起音発生装置790は、上述した車両想起音発生装置700Aと同様に、車両MVに搭載される。
次に、上記のように構成された車両想起音発生装置790の動作について説明する。なお、位置検出部720は、車両MVの現在位置を検出し、検出された現在位置を定期的に算出部735へ送っているものとする。また、走行情報取得部725は、車両MVの進行方向を定期的に取得しており、取得された進行方向を算出部735へ送っているものとする。
次に、本発明の第2実施形態を、図5を参照して説明する。
図5には、第2実施形態に係る車両想起音発生装置700Dの概略的な構成が示されている。この図5に示されるように、車両想起音発生装置700Dは、上述した車両想起音発生装置700Aと同様に、車両MVに搭載される。
次に、上記のように構成された車両想起音発生装置700Dの動作について説明する。なお、撮影部770は、車両MVの周辺の撮影しており、撮影画像を、逐次、取得部730Bへ送っているものとする。
まず、第1実施例を、図6~図11を参照して説明する。
図6には、第1実施例に係る車両想起音発生装置としての機能を有するナビゲーション装置100Aの概略的な構成が示されている。なお、ナビゲーション装置100Aは、上述した第1実施形態の車両想起音発生装置700A(図1参照)の一態様となっている。
以上のように構成されたナビゲーション装置100Aの動作について、擬似エンジン音発生に際しての制御ユニット110Aによる処理に主に着目して説明する。なお、車速センサ210、アクセル情報センサ220及び回転数情報センサ230は、検出動作を行っており、検出結果をナビゲーション装置100Aへ送っているものとする。また、制御ユニット110Aは、アクセル情報センサ220及び回転数情報センサ230による検出結果を受けるたびに、直ちに、当該検出結果を反映したアクセル情報AR及び回転数情報ERを、擬似エンジン音出力ユニット130へ送っているものとする。
次に、第2実施例を、図12~図15を参照して説明する。
図12には、第2実施例に係る車両想起音発生装置としての擬似エンジン音発生装置100Bの概略的な構成が示されている。なお、擬似エンジン音発生装置100Bは、上述した第2実施形態の車両想起音発生装置700D(図5参照)の一態様となっている。
以上のように構成された擬似エンジン音発生装置100Bの動作について、擬似エンジン音発生に際しての制御ユニット110Bによる処理に主に着目して説明する。なお、アクセル情報センサ220及び回転数情報センサ230は、検出動作を行っており、検出結果を擬似エンジン音発生装置100Bへ送っているものとする。また、撮影ユニット190は、車両CRの周囲の撮影を行っており、撮影結果を、逐次、制御ユニット110Bへ送っているものとする。また、制御ユニット110Bは、アクセル情報センサ220及び回転数情報センサ230による検出結果を受けるたびに、直ちに、当該検出結果を反映したアクセル情報AR及び回転数情報ERを、擬似エンジン音出力ユニット130へ送っているものとする。
本発明は、上記の第1及び第2実施例に限定されるものではなく、様々な変形が可能である。
次に、上述の第1及び第2実施例と実施形態における車線情報に基づく擬似エンジン音の到達範囲の制御と組み合わせることができる「交差点までの距離を考慮した擬似エンジン音の到達範囲の制御」について説明する。以下、第1実施例のナビゲーション装置100Aにおける制御ユニット110Aが、当該制御を行うものとして説明をする。
Claims (8)
- 車両想起音を音出力部から車両の外部へ出力させる車両想起音発生装置であって、
前記車両が走行している道路の車線数を示す車線数情報を含む車線情報を取得する取得部と;
前記取得された車線情報に基づいて、前記音出力部から出力される車両想起音が到達すべき車両想起音到達範囲を決定する決定部と;
前記決定された車両想起音到達範囲に対応する車両想起音の前記音出力部からの出力を制御する制御部と;
を備えることを特徴とする車両想起音発生装置。 - 前記車両の現在位置を検出する位置検出部と;
前記道路の車線数情報を含んだ地図情報が記憶された記憶部と;を更に備え、
前記取得部は、前記検出された現在位置に基づいて前記記憶部を参照することにより、前記道路の車線情報を取得する、
ことを特徴とする、請求項1に記載の車両想起音発生装置。 - 前記車両が走行している経路の周辺画像を撮影する撮影部を更に備え、
前記取得部は、前記撮影部が撮影した前記周辺画像を解析することにより、前記道路の車線情報を取得する、
ことを特徴とする、請求項1に記載の車両想起音発生装置。 - 前記決定部は、
前記車両が走行している前記道路の車線数が1車線である場合は、前記車両の進行方向に対して対称的な所定範囲を前記車両想起音到達範囲に決定し、
前記車両が走行している前記道路の車線数が2車線以上である場合は、前記車両の進行方向に対して歩行者が存在すると推定される側が前記所定範囲よりも広い範囲を車両想起音到達範囲に決定する、
ことを特徴とする、請求項1~3のいずれか一項に記載の車両想起音発生装置。 - 前記決定部は、
前記車両が走行している前記道路の車線数が1車線である場合は、前記車両の進行方向に対して対称的な所定範囲を前記車両想起音到達範囲に決定し、
前記車両が走行している前記道路の車線数が2車線以上である場合は、歩行者が存在しないと推定される側が前記所定範囲よりも狭い範囲を車両想起音到達範囲に決定する、
ことを特徴とする、請求項1~4のいずれか一項に記載の車両想起音発生装置。 - 車両想起音を音出力部から車両の外部へ出力させる車両想起音発生装置において使用される車両想起音発生方法であって、
前記車両が走行している道路の車線数を示す車線数情報を含む車線情報を取得する取得工程と;
前記取得された車線情報に基づいて、前記音出力部から出力される車両想起音が到達すべき車両想起音到達範囲を決定する決定工程と;
前記決定された車両想起音到達範囲に対応する車両想起音の前記音出力部からの出力を制御する制御工程と;
を備えることを特徴とする車両想起音発生方法。 - 請求項6に記載の車両想起音発生方法を演算部に実行させる、ことを特徴とする車両想起音発生プログラム。
- 請求項7に記載の車両想起音発生プログラムが、演算部により読み取り可能に記録されている、ことを特徴とする記録媒体。
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JPWO2011117989A1 (ja) | 2013-07-04 |
JP4608604B1 (ja) | 2011-01-12 |
CN105015412A (zh) | 2015-11-04 |
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