JP3518332B2 - Composite equipment for vehicles - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention described in the claims of the present application includes a navigation system section mounted on a vehicle, and is based on an audio signal transmitted from an audio signal generating section provided on the vehicle. The present invention relates to a composite device for a vehicle, which controls a voice output obtained according to a traveling state of the vehicle.

[0002]

2. Description of the Related Art Various road-driving support systems for vehicles have been developed. As one of such road-driving support systems, for example, by means of an image display means arranged in a vehicle compartment forming portion of the vehicle, The road map information in a predetermined area including the driving range is displayed as a map image, and the position of the vehicle is displayed on the map image so that the occupants of the vehicle can be provided with information regarding road driving. The navigation system department that is supposed to do is proposed. The provision of information to the occupants of the vehicle by such a navigation system unit is performed, for example, while the current position of the vehicle is being detected, and the current position of the vehicle is sequentially displayed on the map image. By doing so, it contributes to the occupant's understanding of the running condition or running environment of the vehicle, or is superimposed on the map image so that the route planned or set for the vehicle to run is displayed, It is supposed to reduce the burden on the occupants who are driving the vehicle.

In such a navigation system unit, various data relating to the running state of the vehicle including the operating state of the vehicle, the state of the road on which the vehicle runs, the running speed state of the vehicle, and the like are stored in various forms. Can be obtained at.

Further, a vehicle usually has a radio receiver,
Audio cassette tape player, audio
An audio signal generation unit including a compact disc player or the like is provided, and an audio output based on the audio signal obtained from the audio signal generation unit is obtained from a speaker that is an audio generation unit arranged in the vehicle interior of the vehicle. The crew will hear it.

As described above, in the navigation system section, the voice signal generating section and the voice generating section provided in the vehicle, for example, the voice generating section constitutes a part of the navigation system section and the voice signal generating section is provided. A voice output based on a voice signal from the vehicle is generated to form a composite device for a vehicle.

[0006]

For example, based on a voice signal from a voice signal generator provided in a vehicle as a component of a vehicle composite device including a navigation system unit, a speaker is emitted in a vehicle cabin of the vehicle. The voice output that reaches the ears of the occupant has various effects on the occupant according to the running state of the vehicle. And the influence of the sound output from the speaker in the passenger compartment on the occupant is not only preferable for the occupant,
In some cases, it may cause inconvenience. Such inconveniences include, for example, an increase in tiredness of the occupant, and a concern that the occupant may be making noise around the vehicle.

In view of the above point, the invention described in the claims of the present application comprises a navigation system section, a sound signal generating section, and a sound generating section, which is provided in a vehicle and is equipped with a sound signal generating section. A vehicle composite device capable of effectively suppressing a situation in which a voice output obtained from a voice generation unit based on a voice signal transmitted from a vehicle causes inconvenience to an occupant according to a running state of the vehicle. provide.

[0008]

A composite device for a vehicle according to the invention described in any one of claims 1 to 4 in the claims of the present application is a position detecting section for detecting a current position of a vehicle. A map data providing unit that sends out map data representing the map, and an image display unit that displays the current position of the vehicle detected by the position detecting unit as a position on the map represented by the map data from the map data providing unit. A navigation system unit including a voice signal generating unit for transmitting a voice signal, a voice signal control unit for controlling a voice signal transmitted from the voice signal generating unit, and a voice signal obtained through the voice signal control unit. a voice generating portion for obtaining an audio output based on a predetermined control shaped to the audio signal controller
And a operation control section to assume a condition, the operation control unit, the navigation
The running state of the vehicle obtained from the gate system
Based on the data represented,
It is determined that the cumulative running time of the vehicle has exceeded the specified time
When turned off, the frequency characteristics of the audio signal are
Is the total running time of the vehicle after the above-mentioned predetermined reference time.
The low frequency range and
And control in which the level is lowered in the high frequency range
It is configured to do.

[0009]

Further, in the compound device for a vehicle according to the invention described in any one of claims 2 to 4 in the claims of the present application, the operation control section of the vehicle is obtained from the navigation system section. is by determine on the basis of the data representing the running state, depending on the situation of the road on which the vehicle is traveling, is intended to carry out a level control of the audio signal to the audio signal controller, configured.

[0011] For the vehicle composite apparatus according to the invention described in claim 1 in the claims of the present application constructed as described above to Claim 4, the control by the operation control unit under the speech signal supplied to the sound generator is transmitted from the audio signal generating unit, the voice signal controller
Based on the data that shows the running state of the vehicle obtained from the navigation system,
The cumulative running time of the vehicle after
When it is determined that the
When the cumulative running time of the vehicle after the fixed reference time is the specified time
Low frequency range and high frequency range compared to when less than
The control is performed as if the level at
Ru is supplied to the voice generation portion. As a result, the sound output generated from the sound generation unit is output by the vehicle after the predetermined reference time.
It is assumed that the occupant will not be inconvenienced after the cumulative traveling time has passed a predetermined time .

[0012]

Further, in the vehicular composite apparatus according to the invention described in any one of claims 2 to 4 in the claims of the present application, the voice is controlled under the control of the operation controller. audio signal is transmitted from the signal generating unit is supplied to the audio generating unit, the audio signal controller, is another determine on the basis of the data representing the running state of the vehicle obtained from the navigation system unit, the vehicle is traveling and it is made level control according to the road condition and, Ru is supplied to the voice generation portion. As a result, the sound output generated from the sound generating unit, in accordance with the running condition of the vehicles, is intended to not result in inconvenience to the passenger.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a vehicle composite device according to the invention described in any one of claims 1 to 4 in the claims of the present application.

In the example shown in FIG. 1, a global positioning system, which is a radio navigation system using an artificial satellite, is installed in a vehicle as a whole.
A navigation system unit 11 including a position detection unit 10 that detects the current position of the vehicle using a GPS signal from an artificial satellite in the system (GPS) is provided.

In the position detecting section 10, a GPS signal is selectively received, and a predetermined processing is performed, which is obtained from the GPS signal antenna 12 and the GPS signal receiving section 13 for performing a predetermined processing on the received GPS signal. GPS signal SG
It is supplied to the current position detector 14. Current position detector 14
In addition to the GPS signal SG from the GPS signal receiving unit 13, the input position data, the detection output obtained from the azimuth sensor provided in the vehicle according to the traveling direction (azimuth) of the vehicle, Various data groups DSR including a detection output SV representing the traveling speed of the vehicle, which is obtained from the vehicle speed sensor 15 provided, are supplied. Further, the current position detection unit 14 is also supplied with map data DM from the map data storage memory unit 20 in which map data regarding the road map network within the movement range of the vehicle is stored.

Then, the current position detecting unit 14 determines the current position of the vehicle based on the GPS signal SG from the GPS signal receiving unit 13, the data group DSR, and the map data DM read from the map data storing memory unit 20. DM
The current position data DP representing the detected current position is transmitted.

In the position detecting section 10 and the map data storing memory section 20, the respective operations are controlled by the control signals CP and CM from the navigation control unit 21 included in the navigation system section 11, respectively. . An input operation section 22 is connected to the navigation control unit 21, and various control command signals DI from the input operation section 22 are transmitted to the navigation control unit 2.
1 is supplied.

Further, in the example shown in FIG. 1, traffic information under the vehicle information communication service (VICS) which provides the vehicle with position information, road use status information, weather information and the like. Antennas 31 and 41 used for receiving signals are provided.

The antenna 31 receives an FM audio broadcast signal for multiplex transmission of traffic information data under VICS,
It is supposed to be supplied to the FM audio broadcast signal receiving section 32. From the FM audio broadcast signal receiving unit 32, the received F
The M audio broadcast signal SA is obtained and supplied to the decoder unit 33. Then, in the decoder unit 33, the traffic information data DA multiplexed and transmitted by the FM audio broadcast signal SA.
Is played.

On the other hand, the antenna 41 receives a beacon signal from a beacon, which is a communication means for transmitting traffic information data under VICS, and supplies it to the beacon receiving section 42. The received beacon signal SB is obtained from the beacon receiving unit 42, and the decoder unit 43 receives the received beacon signal SB.
Is supplied to. Then, in the decoder unit 43, the traffic information data DB transmitted by the beacon signal SB is reproduced.

Current position detector 1 in position detector 10
4 present position data DP, the traffic information data DA obtained from the decoder unit 33, and the decoder unit 43
The traffic information data DB obtained from is the travel route setting unit 4
5 is supplied. The travel route setting unit 45 is supplied with the map data DM from the map data storage memory unit 20 in addition to the current position data DP, the traffic information data DA and the traffic information data DB, and further sent from the navigation control unit 21. Destination data DO representing the destination that the vehicle should reach is also supplied.

The traveling route setting section 45 determines the destination data DO.
On the road map represented by the map data DM and the map data DM corresponding to the destination represented by the destination data DO. With the position as the route end point, the optimum route from the route start point to the route end point on the road map represented by the map data DM is referred to by the road use status information, weather information, etc. represented by the traffic information data DA or the traffic information data DB. Set as the route that the vehicle should travel on. Then, the traveling route setting unit 45
Sends out the set route data DCS representing the set route.

The set route data DCS from the traveling route setting unit 45 is supplied to the display data forming unit 46. In the display data forming unit 46, the current position data DP from the current position detecting unit 14 in the position detecting unit 10, the map data DM from the map data storage memory unit 20, the traffic information data DA from the decoder unit 33, and the decoder unit 43. The traffic information data DB from is also supplied.

In the display data forming section 46, set route data DCS, current position data DP, map data D
M and the traffic information data DA or the traffic information data DB are combined as appropriate, the road map represented by the map data DM, and the current position data DP superimposed on the road map.
The image display data DSP comprehensively represents the current position of the vehicle represented by the set route, the set route represented by the set route data DCS, the traffic information data DA or the traffic information represented by the traffic information data DB, and the like. Then, the image display data DSP obtained from the display data forming unit 46 is supplied to the video signal forming unit 47.

In the video signal forming section 47, a color video signal including a red primary color signal R, a green primary color signal G and a blue primary color signal B is formed based on the image display data DSP, and the color video signal is formed into a video signal. It is supplied from the unit 47 to the image display unit 48. In the image display unit 48, an image display based on the image display data DSP formed by the display data forming unit 46 is performed. For example, on the screen of the image display unit 48, the image of the road map and the image superimposed thereon are displayed. It is possible to obtain an image showing the current position of the vehicle and the set route, a display regarding traffic information, and so on.

The current position data DP from the current position detecting unit 14, the set route data DCS from the traveling route setting unit 45, and the map data DM from the map data storage memory unit 20 are stored in the voice guidance data forming unit 49. Is supplied to. The voice guidance data forming unit 49 displays the current position data D.
Based on P, the set route data DCS and the map data DM, the voice guide data DOG corresponding to each of the guide points where the preset voice guide should be performed on the set route represented by the set route data DCS is formed, Send it out.

The voice guidance data DOG sent from the voice guidance data forming unit 49 is supplied to the voice signal forming unit 50. The voice signal forming unit 50 forms a voice signal AOG based on the voice guidance data DOG, and the voice signal AOG is supplied to the voice generating unit 53 through the signal adding units 51 and 52.

As a result, the voice generation unit 53 outputs a voice for voice guidance based on the voice guidance data DOG formed by the voice guidance data forming unit 49. The voice guidance provided in this manner has guidance contents corresponding to preset guidance points.

The traffic information data DA obtained from the decoder unit 33 and the traffic information data DB obtained from the decoder unit 43 are also supplied to the audio signal forming unit 55 and the audio signal forming unit 56, respectively. In the audio signal forming section 55,
A voice signal AUA representing traffic information based on the traffic information data DA is obtained, and a voice signal AUB representing traffic information based on the traffic information data DB is obtained in the voice signal forming unit 56. Then, the audio signal forming unit 55
Of the audio signal AUA obtained from the audio signal forming unit 56 and the audio signal AUB obtained from the audio signal forming unit 56 is selected by the audio signal selecting unit 57, and the signal adding units 51 and 5 are selected.
2 is supplied to the voice generation unit 53. As a result, the voice generation unit 53 outputs voice traffic information based on the voice signal AUA or the voice signal AUB.

Further, in the example shown in FIG. 1, in addition to the navigation system section 11 as described above,
For example, the audio signal generating unit 60 including a radio receiver, an audio cassette tape player, an audio compact disc player, etc. is provided. The audio signal generation unit 60 outputs the audio signal A when placed in the operating state.
The audio signal AUR that is transmitted from the audio signal generation unit 60 is the audio signal level / frequency characteristic control unit 61.
Is supplied to.

An operation control unit 62 is provided for the audio signal generator 60 and the audio signal level / frequency characteristic controller 61. The audio signal generator 60 performs an operation of transmitting the audio signal AUR in response to the control signal CR from the operation control unit 62, and the audio signal level / frequency characteristic controller 61 controls the operation signal from the operation control unit 62. According to CL and the control signal CF, level control and frequency characteristic control for the audio signal AUR sent from the audio signal generator 60 are performed.

Then, in the audio signal level / frequency characteristic control unit 61, the audio signal AUX obtained by performing the level control and the frequency characteristic control on the audio signal AUR sent from the audio signal generation unit 60 is the signal addition unit 52. Is supplied to the voice generating unit 53 through the. Thereby, the audio output based on the audio signal AUR sent from the audio signal generating unit 60 is output from the audio generating unit 53 with respect to the audio signal AUR sent from the audio signal generating unit 60 in the audio signal level / frequency characteristic control unit 61. It is issued as a response to the level control and the frequency characteristic control.

The operation control unit 62 includes an input operation section 6
3 program and a memory unit 64 is made to accompanying the operation control unit 62, in response to a control command signal DN supplied from the input operation unit 63, a program memory unit 6
Read from 4 program data DPR supplied
It operates according to the operation program shown. further,
The operation control unit 62 includes a detection output SV from the vehicle speed sensor 15, and current position data DP and map data storage memory unit 20 obtained from the current position detection unit 14 in the position detection unit 10 included in the navigation system unit 11. The map data DM from is supplied.

Under such a condition, the operation control unit 62
Captures the current position data DP and the map data DM from the navigation system unit 11 as data representing the running state of the vehicle, and the audio signal level / frequency characteristic control unit 61 outputs the audio signal from the audio signal generation unit 60. A voice output that causes the AUR to perform level control and frequency characteristic control according to the running state of the vehicle, thereby performing control according to the running state of the vehicle regarding the voice output generated from the voice generating unit 53. Execute a control action.

When such an audio output control operation is performed by the operation control unit 62, the operation control unit 62 receives, for example, a control command signal DN for instructing execution of the audio output control operation from the input operation unit 63. The supplied time is set as the reference time. Then, the operation control unit 62 first sends the audio signal level / frequency characteristic control unit 61, and the audio signal AUR sent from the audio signal generation unit 60 to the characteristic diagram (horizontal axis: frequency,
In the vertical axis: signal level), as shown by the solid line FA, the transmission of the control signal CF is started which causes the frequency characteristic control to have the first frequency characteristic (frequency-level characteristic). , And supplies the control signal CF to the audio signal level / frequency characteristic control unit 61.

After that, the operation control unit 62 detects the traveling state of the vehicle based on the current position data DP and the map data DM, and monitors the passage of time from the set reference time point, and a predetermined time from the reference time point. For example, when 4 hours have passed, the audio signal level / frequency characteristic control unit 61 is replaced with the audio signal AUR sent from the audio signal generation unit 60 instead of the control signal CF up to then, and the characteristics shown in FIG. As shown by a chain line FB in the figure, transmission of a control signal CF for performing frequency characteristic control for giving a second frequency characteristic is started, and the control signal CF is changed to an audio signal level. It is supplied to the frequency characteristic control unit 61. In such a case, the second frequency characteristic is such that the signal level in the predetermined low frequency range and the predetermined high frequency range is reduced as compared with the first frequency characteristic. Then, the operation control unit 62 causes the audio signal level / frequency characteristic control unit 61 to perform the frequency characteristic control for giving the audio signal AUR sent from the audio signal generation unit 60 the second frequency characteristic. The control signal CF is continuously transmitted until, for example, the control command signal DN for instructing to end the voice output control operation is supplied from the input operation unit 62.

Under the operation control by the operation control unit 62, the frequency characteristic control for the audio signal AUR sent from the audio signal generating section 60, which is performed by the audio signal level / frequency characteristic control section 61, is performed as follows. The following effects are brought about. That is, an occupant of a vehicle, particularly a driver often hears a voice output generated from the voice generating unit 53 while the vehicle is traveling, and therefore, it is regarded as a driving time for the driver. When the running time of the vehicle (including the parking time) exceeds a predetermined time, for example, 4 hours, the vehicle occupant usually begins to feel tired. Under such a situation, the sound output generated from the sound generation unit 53 that enters the ears of the vehicle occupant is more reduced in the low frequency range and the high frequency range, so that the occupant feels tired. The degree to which it is made is small.

Then, an effective measure for making the sound output generated from the sound generating section 53 to have a reduced level in the low frequency range and the high frequency range is the sound signal generating section 6
The frequency characteristic of the audio signal AUR transmitted from 0 is such that the signal levels in the low frequency region and the high frequency region are reduced. Therefore, as described above, under the operation control by the operation control unit 62, from the reference time point,
For example, after a predetermined time of 4 hours has elapsed, the audio signal level / frequency characteristic control unit 61
In the audio signal AUR transmitted from the audio signal generator 60,
In place of the first frequency characteristic up to that point, a second frequency characteristic having a signal level in a predetermined low frequency range and a predetermined high frequency range reduced as compared to the first frequency characteristic is provided. By performing the frequency characteristic control so that the sound output from the sound generating unit 53 is
The degree to which the occupant who hears it feels tired will be small.

The operation control unit 62, in addition to the operation control for causing the audio signal level / frequency characteristic control unit 61 to perform the frequency characteristic control for the audio signal AUR sent from the audio signal generation unit 60, as described above. The audio signal level / frequency characteristic control unit 61 controls the audio signal AUR sent from the audio signal generation unit 60 to perform level control according to whether or not the vehicle is traveling, and further The operation control for performing the level control according to the situation is executed.

In such operation control, the operation control unit 62 first detects the detection output S from the vehicle speed sensor 15.
Based on V, it is determined whether or not the vehicle is traveling, and when the vehicle is stopped, the audio signal AUR sent from the audio signal generation unit 60 is sent to the audio signal level / frequency characteristic control unit 61. The transmission of the control signal CL for performing the level control for taking the intermediate level is started, and the control signal CL is supplied to the audio signal level / frequency characteristic control unit 61.

When the vehicle is traveling, it is determined whether the road on which the vehicle is traveling is a highway based on the current position data DP and the map data DM. If the road on which the vehicle is traveling is not a highway, the audio signal level / frequency characteristic control unit 61 sets the audio signal AUR sent from the audio signal generation unit 60 to an intermediate level. The transmission of the control signal CL for controlling is continued.

On the other hand, when the road on which the vehicle is traveling is a highway, the traveling speed of the vehicle is a predetermined speed, for example, 50 km / h or more, based on the detection output SV from the vehicle speed sensor 15. Or not. As a result, if the traveling speed of the vehicle is, for example, less than a predetermined speed of 50 km / h, the audio signal level / frequency characteristic control unit 61 and the audio signal AUR sent from the audio signal generation unit 60 have an intermediate level. When the traveling speed of the vehicle is equal to or higher than a predetermined speed of 50 km / hour, for example, the control signal CL is set so as to control the level of the vehicle. Instead of the control signal CL, the audio signal level / frequency characteristic control unit 6
1, the audio signal AU sent from the audio signal generator 60.
The control signal CL is set to a state in which R is controlled to perform the maximum level control.

Under such operation control by the operation control unit 62, the level control for the audio signal AUR sent from the audio signal generation unit 60, which is performed by the audio signal level / frequency characteristic control unit 61, is performed by the vehicle. This brings about the effect of releasing the occupant from the concern that noise may be scattered around the vehicle. That is, the vehicle is traveling on a general road that is not a highway, or
Although the vehicle is traveling on a highway, the audio signal level of the audio signal AUR transmitted from the audio signal generation unit 60 is set under the condition that the traveling speed is less than a predetermined speed of 50 km / hour, for example. When the audio signal AUX obtained by the control by the frequency characteristic control unit 61 has a relatively large level, the audio output emitted from the audio generation unit 53 scatters noise around the vehicle. If the vehicle is traveling on a highway and the traveling speed is equal to or higher than a predetermined speed of 50 km / hour, for example, the audio signal generator 60 sends the audio signal. If the audio signal AUX obtained by the control of the audio signal level / frequency characteristic control unit 61 being applied to the audio signal AUR to be obtained has a relatively small level, the audio generation unit 53 Emanating sound output is drowned out in the running noise of the vehicle, there is a possibility that the occupant of the vehicle can no longer be properly listen to the audio output emitted from the voice generating unit 53.

Therefore, as described above, under the operation control of the operation control unit 62, the vehicle is traveling on a general road that is not a highway, or the vehicle is traveling on a highway, but Speed is, for example, 50 km / h
Under the condition that the speed is lower than the predetermined speed, the audio signal level / frequency characteristic control unit 61 performs the level control for causing the audio signal AUR sent from the audio signal generation unit 60 to have an intermediate level, In addition, when the vehicle is traveling on a highway and the traveling speed is equal to or higher than a predetermined speed of 50 km / hour, for example, the audio signal level / frequency characteristic control unit 61 causes the audio signal generation unit to operate. 60
Level control is performed so that the audio signal AUR transmitted from the vehicle takes the maximum level, which relieves the occupant of the vehicle from making noise around the vehicle and releases the vehicle from the highway. For example, even when the vehicle is traveling at a traveling speed of 50 km / h or more, the occupant can appropriately listen to the voice output generated from the voice generating unit 53.

The operation control unit 62 in the example shown in FIG. 1 is constructed by using, for example, a microcomputer. An example of a program executed by such a microcomputer when performing the audio output control operation will be described with reference to the flowchart of FIG.

In the program shown in the flow chart of FIG. 3, the program is started by setting the reference time point, and after the start, in step 71, after the initial setting for setting the elapsed time flag Ft to "0" is performed. , Step 72, detection output S from the vehicle speed sensor 15
Based on V, it is determined whether the vehicle is in a traveling state.
As a result, when the vehicle is not in the traveling state but in the stopped state, in step 73, the level control flag F
It is determined whether or not v1 is "0".

If the result of determination in step 73 is that the level control flag Fv1 is not "0", in step 74 the audio signal level / frequency characteristic control unit 61 is sent from the audio signal generation unit 60. Voice signal A
The transmission of the control signal CL for causing the UR to perform the level control for taking the intermediate level is started. Then, in step 75, the level control flag Fv1
Is set to "0" and the process proceeds to step 76. If the level control flag Fv1 is "0" as a result of the determination in step 73, the process directly proceeds from step 73 to step 76.

On the other hand, if the result of determination in step 72 is that the vehicle is in a traveling state, it is determined in step 77 whether the elapsed time flag Ft is "1". As a result, when the elapsed time flag Ft is not "1", it is determined in step 78 whether or not a predetermined time, for example, 4 hours has elapsed from the reference time point. As a result, when four hours have not elapsed from the reference time point, it is determined in step 79 whether the frequency characteristic control flag Ff is "1".

If the result of determination in step 79 is that the frequency characteristic control flag Ff is not "1", in step 80 the audio signal level / frequency characteristic control section 61 is sent from the audio signal generating section 60. For the audio signal AUR, for example, the first frequency characteristic (frequency characteristic Z) as shown by the solid line FA in the characteristic diagram of FIG.
The transmission of the control signal CF for controlling the frequency characteristic so as to have a) is started. Then, in step 81, the frequency characteristic control flag Ff is set to "1", and the process proceeds to step 82. If the frequency characteristic control flag Ff is "1" as a result of the determination in step 79, the process directly proceeds from step 79 to step 76.

As a result of the judgment in step 78, when a predetermined time, for example, 4 hours has elapsed from the reference time point, the elapsed time flag Ft is set to "1" in step 83, and in the subsequent step 84, the voice signal is output. level·
In the frequency characteristic control unit 61, the audio signal AUR sent from the audio signal generation unit 60 has a second frequency characteristic (frequency characteristic Zb) as indicated by the chain line FB in the characteristic diagram of FIG. Then, the transmission of the control signal CF that causes the frequency characteristic control to be performed is started. Thereafter, in step 85, the frequency characteristic control flag Ff is set to "0", and the process proceeds to step 82.

Further, as a result of the judgment at step 77, when the elapsed time flag Ft is "1", the routine proceeds from step 77 directly to step 82.

In step 82, it is determined whether the road on which the vehicle is traveling is an expressway based on the current position data DP and the map data DM. As a result, when the road on which the vehicle is traveling is not a highway, the level control flag Fv1 is set to "0" in step 86.
It is determined whether or not.

If the result of determination in step 86 is that the level control flag Fv1 is not "0", in step 87 the audio signal level / frequency characteristic control unit 61 is sent from the audio signal generation unit 60. Voice signal A
The transmission of the control signal CL for causing the UR to perform the level control for taking the intermediate level is started. Then, in step 88, the level control flag Fv1
Is set to "0" and the process proceeds to step 76. If the result of determination in step 86 is that the level control flag Fv1 is "0," step 86 directly proceeds to step 76.

If the result of determination in step 82 is that the road on which the vehicle is traveling is an expressway, the traveling speed of the vehicle is determined based on the detection output SV from the vehicle speed sensor 15 in step 89. , It is determined whether or not a predetermined speed, for example, 50 km / h or more. As a result, when the traveling speed of the vehicle is less than the predetermined speed of 50 km / h, for example, the process proceeds to step 86.

As a result of the judgment in step 89, when the traveling speed of the vehicle is a predetermined speed, for example, 50 km / h or more, it is judged in step 90 whether the level control flag Fv1 is "1". To do. As a result, when the level control flag Fv1 is not set to "1", the maximum level of the audio signal AUR sent from the audio signal generation unit 60 is set to the audio signal level / frequency characteristic control unit 61 in step 91. The transmission of the control signal CL for controlling the level to be performed is started. Then, in step 92, the level control flag Fv1 is set to "1", and the process proceeds to step 76. If the level control flag Fv1 is "1" as a result of the determination in step 90, the process directly proceeds from step 90 to step 76.

Then, in step 76, it is judged whether or not the control command signal DN for instructing to end the voice output control operation is supplied from the input operation section 63.
As a result, when the control command signal DN instructing to end the voice output control operation is not supplied, the process returns to step 72, and the control command signal DN instructing to end the voice output control operation is issued. When supplied, the program ends.

[0058]

As is apparent from the above description, according to the vehicle composite apparatus of the invention described in any one of claims 1 to 4 in the claims of the present application,
Under the control by the operation control unit, the audio signal is supplied to the sound generator is transmitted from the audio signal generating unit, the voice signal
Based on the data representing the running state of the vehicle obtained from the navigation system unit by the control unit ,
The cumulative running time of the vehicle after the reference time is less than the specified time
When it is judged that it is above, regarding frequency characteristics
, The cumulative running time of the vehicle after the predetermined reference time
Compared to when it is less than a fixed time, low frequency range and high frequency
Control is performed assuming that the level in the wave number range has decreased.
Is it is supplied to the voice generating unit, as a result, the sound output generated from the sound generating unit, a car after a predetermined reference time
After the cumulative running time of both has passed the predetermined time
It is intended to not result in inconvenience to the passenger.

[0059]

Further, according to the vehicle composite apparatus of the invention described in any one of claims 2 to 4 in the claims of the present application, the audio signal is controlled under the control of the operation controller. audio signal supplied to the sound generator is transmitted from the generation unit, the audio by the signal control unit, is determine by on the basis of the data representing the running state of the vehicle obtained from the navigation system unit, the vehicle is traveling is level control according to the situation of the road the performed is supplied to the voice generating unit, as a result, the sound output generated from the sound generating unit, in accordance with the running condition of the vehicles, the noise of the occupant around the vehicle It is supposed that the occupant can properly listen to the voice output generated from the voice generating unit, as well as the concern that the voice is being swung around.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a vehicle composite device according to the invention described in any one of claims 1 to 4 in the claims of the present application.

2 is a diagram showing the audio signal level in the example shown in FIG.
FIG. 7 is a characteristic diagram provided for explaining an operation of a frequency characteristic control unit.

FIG. 3 is a flowchart showing an example of a program executed by a microcomputer constituting the operation control unit in the example shown in FIG. 1 to perform a voice output control operation.

[Explanation of symbols]

10 ... Position detecting unit, 11 ... Navigation system unit, 12 ... GPS signal antenna, 13 ...
・ GPS signal receiving unit, 14 ... Current position detecting unit, 20
・ ・ ・ Map data storage memory unit, 21 ・ ・ ・ Navigation control unit, 22, 63 ・ ・ ・ Input operation unit, 3
1, 41 ... Antenna, 32 ... FM audio broadcast signal receiving section, 33, 43 ... Decoder section, 42 ... Beacon receiving section, 45 ... Travel route setting section, 46 ... Display Data forming unit, 47 ... Video signal forming unit, 48 ...
・ Image display part, 49 ... Voice guidance data forming part, 5
0, 55, 56 ... Audio signal forming unit, 51, 52 ...
・ Signal addition unit, 53 ... Voice generation unit, 60 ... Voice signal generation unit, 61 ... Voice signal level / frequency characteristic control unit, 62 ... Operation control unit, 64 ... Program memory unit

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI H03G 5/16 H03G 5/16 B (56) References JP 10-104000 (JP, A) JP 4-317835 ( JP, A) JP 10-104009 (JP, A) JP 10-104007 (JP, A) JP 8-140949 (JP, A) JP 1-214368 (JP, A) Sho 63-159991 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60R 16/02 B60R 11/02 G08G 1/0969 B60K 28/06

Claims (4)

(57) [Claims] 1. A position detecting unit for detecting the current position of a vehicle, a map data providing unit for sending out map data representing a map,
And a navigation system section having an image display section for displaying the current position of the vehicle detected by the position detection section as a position on the map represented by the map data from the map data providing section, and a voice signal. An audio signal generator for sending, an audio signal controller for controlling the audio signal sent from the audio signal generator, and an audio generator for obtaining an audio output based on the audio signal obtained through the audio signal controller. After a predetermined reference time, based on the data showing the running state of the vehicle obtained from the navigation system section.
If the cumulative running time of the above vehicles in
When it is determined that the
The frequency characteristics of the signal are
Compared to when the cumulative running time of the vehicle is less than the specified time
Lowers the level in the low and high frequencies.
A composite device for a vehicle, which is configured to include an operation control unit that causes the control to be performed. Wherein said operation control unit, the navigation
The road on which the vehicle is traveling, which is determined based on the data representing the traveling state of the vehicle obtained from the system unit
The composite apparatus for a vehicle according to claim 1 , wherein the audio signal control section is caused to control the level of the audio signal according to the situation . 3. The operation control section is configured such that the vehicle is traveling.
Depending on whether or not the road
The composite device for a vehicle according to claim 2 , wherein the mode of the level control of the audio signal by the control unit is changed . Wherein said operation control section, under a road where the vehicle is traveling is the highway, the running speed of the vehicle
When the speed is equal to or higher than a predetermined speed, the audio signal control unit
Control that keeps the level of the audio signal higher than in other states
The composite device for a vehicle according to claim 3, wherein: