JP2008256420A - Vehicle driving support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely inform a driver of the route guidance information at appropriate timing while inhibiting the voice guidance. <P>SOLUTION: The vehicle driving support device 10 of this invention comprises: a music reproducing means 50; a route guidance means 60; stimulation generation means 70 and 72 for generating stimulation other than the auditory sense of the driver; and a control means 22 for controlling the route guidance mean and the stimulation generation means. When the music has been reproduced by the music reproducing means, the control means characteristically inhibits the output of the route guidance information by the voice by the route guidance means, while making the route guidance information output by the images by the route guidance means, and also making the stimulation generate by the stimulation generating means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle driving support device that appropriately outputs route guidance information during music playback.

2. Description of the Related Art Conventionally, in an audio cooperative navigation device that is mounted on a vehicle and includes voice guidance means that guides information related to a route to a destination by voice, a music playback device that plays music, and a music playback state by the music playback device Detecting means for detecting the sound, timing determining means for determining the timing for voice guidance of information relating to the route to the destination, and music being played by the detecting means at the timing determined by the timing determining means. An audio cooperative navigation device is known that includes voice guidance delay means that delays the timing of voice guidance until the end of the music (for example, see Patent Document 1).
JP 2004-108908 A

  However, the invention described in Patent Document 1 described above has an advantage that the music guidance is not hindered by the voice guidance, but has the disadvantage that the voice guidance cannot be received until the end of the music. Therefore, with such a configuration, the driver may make a mistake in an accurate course, particularly when the driver's driving ability is relatively low or when driving on an unfamiliar road.

  Therefore, an object of the present invention is to provide a vehicle driving support device that can accurately transmit route guidance information to a driver at an appropriate timing while suppressing voice guidance.

In order to achieve the above object, the first invention relates to a driving support apparatus for a vehicle, a music playback means for playing back music,
Route guidance means for outputting route guidance information;
A stimulus generating means for generating a stimulus for a sense other than the driver's hearing;
Control means for controlling the route guidance means and the stimulus generation means,
The control means is configured to output route guidance information by display by the route guidance means and generate the stimulus by the stimulus generation means when music by the music reproduction means is being reproduced. .

A second aspect of the present invention is the vehicle driving support device according to the first aspect,
The control means further suppresses output of route guidance information by voice by the route guidance means when music by the music reproduction means is being reproduced.

A third invention relates to a driving support device for a vehicle, route guidance means for outputting route guidance information,
A stimulus generating means for generating a stimulus for a sense other than the driver's hearing;
Driving ability judgment means for judging the driving ability of the driver;
Control means for controlling the route guidance means and the stimulus generation means,
When the driving ability determining means determines that the driving ability of the driver is higher than a predetermined reference, the control means causes the route guiding means to output route guidance information by display and the stimulus generating means to It is characterized by generating a stimulus.

A fourth aspect of the present invention is the vehicle driving support apparatus according to the third aspect of the present invention,
The control means further suppresses output of route guidance information by voice by the route guidance means when the driving ability judgment means judges that the driving ability of the driver is higher than a predetermined reference. To do.

5th invention relates to the driving assistance device for vehicles, route guidance means which outputs route guidance information,
A stimulus generating means for generating a stimulus for a sense other than the driver's hearing;
A driving frequency determining means for determining a driving frequency of the current driving road based on past driving history data;
Control means for controlling the route guidance means and the stimulus generation means,
The control means causes the route guidance means to output route guidance information by display when the travel frequency judgment means judges that the current travel frequency of the road is higher than a predetermined reference, and the stimulus generation means To generate the stimulus.

A sixth aspect of the invention is the vehicle driving support apparatus according to the fifth aspect of the invention,
The control means further suppresses output of route guidance information by voice by the route guidance means when the driving ability judgment means judges that the driving ability of the driver is higher than a predetermined reference. To do.

A seventh aspect of the present invention is the vehicle driving support device according to any one of the first to sixth aspects,
The control means generates the stimulus by the stimulus generation means at a timing synchronized with a timing of outputting the route guidance information by display by the route guidance means.

  ADVANTAGE OF THE INVENTION According to this invention, the driving assistance device for vehicles which can transmit route guidance information to a driver | operator exactly at an appropriate timing, suppressing voice guidance is obtained.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a system configuration diagram showing a main configuration of an embodiment of a vehicle driving support apparatus 10 according to the present invention. The vehicle driving support device 10 of the present embodiment is configured with a main control unit 20 as a center. The main control unit 20 has a hardware configuration centered on a microcomputer including a CPU, a ROM, a RAM, and the like connected to each other via a bus (not shown).

  The main control unit 20 is connected to a device control unit 22, a host vehicle position measurement unit 30, and a driver information database (driver information DB) 40. A map database (map DB) 32 is connected to the vehicle position measuring unit 30.

  The device control unit 22 has a hardware configuration centered on a microcomputer including a CPU, a ROM, a RAM, and the like connected to each other via a bus (not shown).

  The device control unit 22 is connected with a music playback device 50, a route guidance unit 60, a seat vibration device 70, and a steering vibration device 72 as various devices to be controlled. The route guidance means 60 includes a display device 62, a HUD (head up display) 64, and an audio output device 66.

  The own vehicle position measuring unit 30 includes a GPS receiver, receives radio waves from a satellite via a GPS antenna (not shown), measures the position and speed of the vehicle, and uses the positioning result as vehicle position information. To the device control unit 22 and the main control unit 20. The positioning method may be any method such as single positioning or relative positioning (including interference positioning). At this time, the positioning result is corrected based on outputs from various sensors (not shown) such as a vehicle speed sensor and a gyro sensor, and various information received via a beacon receiver and an FM multiplex receiver (not shown). May be. In addition, the positioning result may be appropriately corrected using a map data in a map DB 32 described later irregularly by a known map matching technique.

  The map database 32 is composed of a writable nonvolatile memory (auxiliary storage device), and may be composed of, for example, a hard disk drive. Alternatively, the map database 32 may be configured by the ROM of the navigation ECU 20. The map database 32 stores map data. In the map data, as usual, coordinate information of nodes corresponding to road junctions (intersections), coordinate information of nodes corresponding to junctions / branches of expressways, and adjacent nodes are connected. Various road information such as link information is included. The road information includes the number of lanes and lane information for each link. Further, the width information of the road corresponding to each link, the road type such as a national road / prefectural road / highway corresponding to each link, and the traffic of each link. Restriction information, speed limit of each link (including legal speed), temporary stop line, parking prohibited area, presence of traffic lights, presence of crossing, overtaking prohibited section, one-way, school zone, U-turn prohibition, accident frequent occurrence point information, etc. May be included.

  The driver information database 40 is composed of a writable non-volatile memory (auxiliary storage device), and may be composed of, for example, a hard disk drive. The driver information database 40 stores various types of information (hereinafter referred to as “driver information”) relating to the characteristics of the driver of the vehicle on which the vehicle driving support device 10 is mounted. When a vehicle on which the vehicle driving support device 10 is mounted is driven by a plurality of drivers, driver information is generated and stored for each driver. The driver information includes basic information of the driver, driving operation information, traveling state information, and traveling history information. The basic information of the driver may be information on the driver's whereabouts (address), main driving area, driver's gender, age, driving history, license color, and car insurance grade. The driver's basic information may be input by the driver himself. Driving operation information includes, for example, an accelerator opening sensor (accelerator position sensor) that detects an operation mode of an accelerator pedal, a shift range information of a transmission, and a brake stroke sensor (brake pedal force sensor, master cylinder pressure sensor) that detects an operation mode of a brake pedal. ) And output signals of various sensors such as a steering sensor that detects the operation mode of the steering wheel. The driving state information may be generated based on output signals from various sensors such as a wheel speed sensor, an acceleration sensor, and a yaw rate sensor that detect the vehicle speed. The travel history information is information representing the movement locus of the vehicle, and may be information in which the vehicle position information from the own vehicle position measurement unit 30 and the map data in the map DB 32 are associated with each other.

  The music playback device 50 is a so-called audio device and may be any device that can play music CDs, MDs, and the like. Music reproduced by the music reproducing device 50 under the control of the device control unit 22 is output via a speaker (not shown) in the passenger compartment. The speaker may be an element of the audio output device 66 described later, or may be provided separately from the audio output device 66 described later.

  The display device 62 may be a liquid crystal display, for example, and is disposed on the instrument panel. On the display, a map drawn based on the map data in the map DB 32 and a route guidance display described later are displayed under the control of the device control unit 22. In addition, an operation menu image, a captured image of a vehicle-mounted camera, a TV video, or the like may be displayed on the display.

  As shown in FIG. 2, the HUD 64 has, as main components, a liquid crystal display 64a and a concave mirror 64b provided in the instrument panel, and a combiner 64c provided in the windshield glass. A route guidance display (see FIG. 5) described later is displayed on the liquid crystal display 64a under the control of the device control unit 22. The route guidance display displayed on the liquid crystal display 64a is reflected by the concave mirror 64b and reflected on the combiner 64c. The light (near infrared image) reflected by the combiner 64c reaches the driver's eyes, and the route guidance display is recognized as a virtual image as if it is outside the windshield glass.

  The audio output device 66 may be a speaker and is disposed at an appropriate position in the vehicle interior. For example, the audio output device 66 may be a speaker integrated with the display device 62. A voice guidance (route guidance message), which will be described later, is output from the speaker under the control of the device control unit 22.

  The seat vibration device 70 is provided at an appropriate place of the seat of the driver's seat, such as a seat portion or a backrest portion of the driver's seat, and generates vibration under the control of the device control unit 22. The sheet vibration device 70 may be an electronically controllable vibrator (vibrator) disposed on the inner side of the skin layer of the sheet, for example. The seat vibration device 70 may be any device that generates vibrations that can be perceived by a driver sitting in a normal posture on the driver's seat.

  The steering vibration device 72 is provided at an appropriate location of the steering wheel, such as a steering wheel portion of the steering wheel, and generates vibration under the control of the device control unit 22. The steering vibration device 72 may be, for example, an electronically controllable vibrator (vibrator) disposed inside the skin layer of the steering wheel. The seat vibration device 70 only needs to generate vibration that can be perceived by a driver who operates the steering wheel in a normal posture and operation mode.

  The device control unit 22 executes various processes such as route search, route guidance, facility search, map drawing, and the like based on map data in the map DB 32, vehicle position information from the vehicle position measurement unit 30, and the like. Here, the route guidance process will be particularly taken up. For example, the device control unit 22 searches for a route to the destination set by the driver, determines a route guidance point corresponding to the searched route, and at a timing when the vehicle arrives at the determined route guidance point. Outputs route guidance information. Details of the route guidance information output mode will be described later.

  In response to the mode instruction from the main control unit 20, the device control unit 22 displays the display device 62, the HUD 64, the audio output device 66, the seat vibration device 70, and the steering in either the normal guidance mode or the simple guidance mode. The vibration device 72 is controlled to execute route guidance control.

  FIG. 3 is a flowchart showing an example of route guidance control realized by the device control unit 22 in the normal guidance mode. The processing routine shown in FIG. 3 is repeatedly executed at predetermined intervals during the normal guidance mode, for example, from when the ignition switch is turned on to when it is turned off.

  In step 100, the device control unit 22 acquires the latest vehicle position information from the own vehicle position measurement unit 30.

  In step 102, the device control unit 22 determines whether route guidance timing has arrived. For example, the device control unit 22 determines that the route guidance timing has arrived when the vehicle position arrives at each route guidance point on the set guidance route. In addition, the device control unit 22 may determine that the route guidance timing has arrived when traffic information (for example, VICS information) is acquired via road-to-vehicle communication. When the route guidance timing has arrived, the routine proceeds to step 104, and when the route guidance timing has not arrived, the processing routine of the current cycle ends as it is.

  In step 104, the device control unit 22 outputs route guidance information via the display device 62 and the audio output device 66. For example, when approaching an intersection where a left turn is scheduled, the device control unit 22 draws a route guidance display for instructing a left turn on a map on the display device 62. Further, the device control unit 22 outputs a voice guidance to the effect of “turn left at an intersection 300 m ahead” via the voice output device 66. It should be noted that this type of route guidance display drawing mode and voice guidance output mode are various, and any route guidance display drawing mode and voice guidance output mode may be used. When the traffic information is acquired in step 102 described above, the device control unit 22 may output the traffic information as route guidance information via the display device 62 and the audio output device 66.

  FIG. 4 is a flowchart showing an example of route guidance control realized by the device control unit 22 in the simple guidance mode. The processing routine shown in FIG. 4 is repeatedly executed at predetermined intervals during the simple guidance mode, for example, from when the ignition switch is turned on to when it is turned off.

  In step 200, the device control unit 22 acquires the latest vehicle position information from the own vehicle position measurement unit 30.

  In step 202, the device control unit 22 determines whether route guidance timing has arrived. This determination method may be the same as step 102 in FIG. 3 described above. When the route guidance timing has arrived, the process proceeds to step 210, and when the route guidance timing has not arrived, the processing routine of the current cycle ends as it is.

  In step 210, the device control unit 22 outputs route guidance information via the HUD 64. For example, when the vehicle arrives 300m before the intersection where a left turn is scheduled, the device control unit 22 causes the HUD 64 to output a route guidance display as shown in FIG. The route guidance display displayed by the HUD 64 may be simpler than the corresponding route guidance display displayed on the display device 62. There are a wide variety of output modes of this type of route guidance display displayed by the HUD 64, and any output mode may be used. In addition, when the latest traffic information is acquired in step 202 described above, the device control unit 22 may output the traffic information as route guidance information via the HUD 64 (or the display device 62).

  In step 212, the device control unit 22 supplies a drive signal (drive current) for a predetermined time to the seat vibration device 70 and the steering vibration device 72 to generate vibration for a predetermined time. The process of step 212 may be executed in synchronization with the process of step 210 described above, and may be executed simultaneously with the process of step 210 described above or immediately before and after the process of step 210 described above.

  As described above, in this embodiment, as shown in FIGS. 3 and 4, in the normal guidance mode, the route guidance information is output via the display device 62 and the audio output device 66 as usual. In the guidance mode, the route guidance information is output via the HUD 64 and is not output via the voice output device 66. In the simple guidance mode, vibration is generated by the seat vibration device 70 and the steering vibration device 72 instead of being output via the audio output device 66.

  By the way, in general, when the route guidance information is output only by display (image) without using voice, the driver does not always look at the display device 62, so it is difficult to obtain the route guidance information. Become.

  On the other hand, according to the present embodiment, when the route guidance information is output only by display (image) without using voice, the vibrations of the seat vibration device 70 and the steering vibration device 72 are generated. Therefore, route guidance information can be effectively transmitted to the driver. That is, since the driver can know the output timing of the route guidance display by perceiving the vibrations of the seat vibration device 70 and the steering vibration device 72, the driver is not aware of the route guidance display displayed by the HUD 64. The possibility is reduced.

  FIG. 6 is a flowchart showing another example of route guidance control realized by the device control unit 22 in the simple guidance mode. The processing routine shown in FIG. 6 is repeatedly executed at predetermined intervals during the simple guidance mode, for example, from when the ignition switch is turned on to when it is turned off. The processing that may be the same as the processing shown in FIG. 4 is given the same step number and description thereof is omitted.

  In step 204, the device control unit 22 determines whether the importance (attention level) of the route guidance information to be output at the current route guidance timing is high. The importance of the route guidance information may be given in advance to each route guidance information according to the content of the route guidance information. At this time, the degree of safety contribution and usefulness of the route guidance information may be considered. For example, the right / left turn guidance in front of the intersection is higher than any one right / left turn guidance in the case of a structure in which the left / right turn guidance is stepwise as it approaches the intersection, such as 1 km ahead, 500 m ahead, and 300 m ahead. Importance may be given. If the importance of the route guidance information to be output at the current route guidance timing is high, the process proceeds to step 206. If the importance of the route guidance information to be output at the current route guidance timing is low, the process proceeds to step 210. move on.

  In step 206, the device control unit 22 outputs route guidance information with high importance via the display device 62 and the voice output device 66 as in the normal guidance mode (similar to step 104 in FIG. 3). In step 210, the device control unit 22 outputs route guidance information with low importance via the HUD 64.

  As shown in FIG. 6, even in the simple guidance mode, highly important route guidance information can be output via the display device 62 and the voice output device 66 as in the normal guidance mode. It is.

  FIG. 7 is a flowchart illustrating another example of route guidance control realized by the device control unit 22 in the simple guidance mode. The processing routine shown in FIG. 7 is repeatedly executed at predetermined intervals during the simple guidance mode, for example, from when the ignition switch is turned on to when it is turned off. Processes that may be the same as the processes shown in FIGS. 4 and 6 are given the same step numbers and description thereof is omitted.

  As shown in FIG. 7, in the simple guidance mode, it is also possible to prohibit the output of route guidance information with low importance and output only route guidance information with high importance via the HUD 64. In this way, in the simple guidance mode, it is possible to lower the output frequency of the route guidance information than in the normal guidance mode.

  Next, an appropriate switching mode between the normal guidance mode and the simple guidance mode described above will be described.

  FIG. 8 is a flowchart illustrating an example of the mode switching process executed by the main control unit 20 of the vehicle driving support apparatus 10. The processing routine shown in FIG. 8 is repeatedly executed at predetermined intervals, for example, from when the ignition switch is turned on to when it is turned off.

  In step 800, the main control unit 20 determines whether or not music is currently being played by the music playback device 50. Whether or not music is currently being played by the music playback device 50 may be determined based on, for example, control information (for example, a playback start signal or a stop signal) from the device control unit 22 that controls the music playback device 50. If music is currently being played by the music playback device 50, the process proceeds to step 802. If music is not currently being played by the music playback device 50, the process proceeds to step 804.

  In step 802, the main control unit 20 instructs the device control unit 22 to perform route guidance control in the simple guidance mode. In response to this, the device control unit 22 performs route guidance control in the simple guidance mode in the manner described with reference to FIG. 4, FIG. 6, or FIG.

  In step 804, the main control unit 20 instructs the device control unit 22 to perform route guidance control in the normal guidance mode. In response, the device control unit 22 performs route guidance control in the normal guidance mode in the manner described with reference to FIG.

  As described above, according to the mode switching process shown in FIG. 8, when the music is being played back, the route guidance control in the simple guidance mode in which the voice guidance is suppressed is executed. Is inhibited. In particular, when the route guidance control of FIG. 4 or FIG. 7 described above is realized in the simple guidance mode, the driver's appreciation of music is not hindered by the voice guidance. In the simple guidance mode, although voice guidance is suppressed, as described above, the vibration of the seat vibration device 70 and the steering vibration device 72 is generated in accordance with the output of the route guidance display, so that the driver displays the route guidance display. The possibility of missing is reduced. Therefore, even when music is being played, route guidance information can be transmitted to the driver at an appropriate timing while preventing the appreciation of music.

  FIG. 9 is a flowchart illustrating another example of the mode switching process executed by the main control unit 20 of the vehicle driving support device 10. The processing routine shown in FIG. 9 is repeatedly executed at predetermined intervals, for example, from when the ignition switch is turned on to when it is turned off.

  In step 900, the main control unit 20 specifies the current driver. The identification (identification) of the driver may be realized based on image recognition by the in-vehicle camera, weight detection result by the seat sensor, or the like. The driver may be identified by obtaining a personal identification ID from an immobilizer, smart key, mobile phone or the like, or using a personal authentication result based on identification of a fingerprint, vein, face, etc. It may be realized. If the driver specifying function is not available or cannot be specified, the current driver is the driver or vehicle owner registered first in the driver information database 40. You can judge. Further, when only driver information relating to a single driver is stored in the driver information database 40, it may be determined that the driver is the current driver.

  In step 902, the main control unit 20 extracts and acquires driver information relating to the current driver from the driver information database 40.

  In step 904, the main control unit 20 determines the current driving ability of the driver based on the driver information acquired in step 902 above. There are a variety of driving ability determination methods, and any determination method may be employed. For example, the driving ability is based on driving operation information and driving state information (past data), changes in vehicle speed, steering turnback frequency when turning left and right (skill of steering operation), accelerator work / brake work, transmission It may be determined by evaluating the shift range change mode or the like as an index. For example, regarding the transition of the vehicle speed, if the transition of the traveling speed is gentle except for the traffic light and the stop at the time of the temporary stop, it may be determined that the driving ability is high. Further, when the steering switching frequency at the time of turning left and right is low, it may be determined that the driving ability is high. In addition, regarding the accelerator work / brake work, when the variation in the depression pressure is small, it may be determined that the driving ability is high. Further, when the change (transition) of the shift range of the transmission is gentle, it may be determined that the driving ability is high. In addition, these indices may be evaluated in relation to the surrounding environment (for example, the shape of the traveling road, the gradient, the number of lanes, etc.). Alternatively, the driving ability may be determined in consideration of basic information (for example, driving history, license color, car insurance grade) in the driver information.

  In step 906, if the main control unit 20 determines that the driving capability is high in step 904, the main control unit 20 proceeds to step 908. If it is determined that the driving capability is low in step 904, the main control unit 20 proceeds to step 910. move on.

  In step 908, the main control unit 20 instructs the device control unit 22 to perform route guidance control in the simple guidance mode. In response to this, the device control unit 22 performs route guidance control in the simple guidance mode in the manner described with reference to FIG. 4, FIG. 6, or FIG.

  In step 910, the main control unit 20 instructs the device control unit 22 to perform route guidance control in the normal guidance mode. In response, the device control unit 22 performs route guidance control in the normal guidance mode in the manner described with reference to FIG.

  As described above, according to the mode switching process shown in FIG. 9, when the driving ability of the driver is high, the route guidance control in the simple guidance mode in which voice guidance is suppressed is executed, and the driving ability of the driver is low. Since the route guidance control in the normal guidance mode is executed, the route guidance control according to the driving ability of the driver can be realized. That is, a driver with high driving ability is less likely to make a wrong route without receiving voice guidance. Conversely, a driver with low driving ability may make a wrong route without receiving voice guidance. high. According to the mode switching process shown in FIG. 9, the route guidance control can be realized in a manner suitable for the driving ability of the driver in consideration of such points. In the simple guidance mode, the voice guidance is suppressed as described above, but the vibration of the seat vibration device 70 and the steering vibration device 72 is generated in accordance with the output of the route guidance display. The possibility of missing the route guidance display is reduced. Accordingly, it is possible to prevent the route guidance information from being excessively transmitted by voice guidance and to transmit the route guidance information to the driver having high driving ability at an appropriate timing by the route guidance display.

  FIG. 10 is a flowchart illustrating another example of the mode switching process executed by the main control unit 20 of the vehicle driving support apparatus 10. The processing routine shown in FIG. 10 is repeatedly executed at predetermined intervals, for example, from when the ignition switch is turned on to when it is turned off.

  In step 1000, the main control unit 20 specifies the current driver. The method for identifying the driver may be the same as in step 900 of FIG.

  In step 1002, the main control unit 20 extracts and acquires driver information relating to the current driver from the driver information database 40.

  In step 1004, the main control unit 20 determines the traveling frequency of the road on which the current driver is currently traveling based on the driver information acquired in step 902 above. The travel frequency may be determined based on travel history information (past data) in the driver information. For example, when the number of times of traveling on the same road is equal to or more than a predetermined number and frequently used, it may be determined that the traveling frequency is high. Alternatively, the traveling frequency may be determined in consideration of basic information in the driver information. For example, it may be determined that the driving frequency is high for a road in the vicinity of the address of the driver's residence or a road in the main driving area of the driver.

  In step 1006, if the main control unit 20 determines that the travel frequency is high in step 1004, the main control unit 20 proceeds to step 1008. If the main control unit 20 determines that the travel frequency is low in step 1004, the main control unit 20 proceeds to step 1010. move on.

  In step 1008, the main control unit 20 instructs the device control unit 22 to perform route guidance control in the simple guidance mode. In response to this, the device control unit 22 performs route guidance control in the simple guidance mode in the manner described with reference to FIG. 4, FIG. 6, or FIG.

  In step 1010, the main control unit 20 instructs the device control unit 22 to perform route guidance control in the normal guidance mode. In response, the device control unit 22 performs route guidance control in the normal guidance mode in the manner described with reference to FIG.

  As described above, according to the mode switching process shown in FIG. 9, when traveling on a road having a high traveling frequency, route guidance control is performed in the simple guidance mode in which voice guidance is suppressed, and a road having a low traveling frequency is detected. When traveling, the route guidance control in the normal guidance mode is executed, so that the route guidance control according to the traveling frequency can be realized. In other words, when driving on a road with high driving frequency, the driver is less likely to make a wrong route without receiving voice guidance. Conversely, when driving on a road with low driving frequency, The driver is likely to make a wrong route without receiving voice guidance. According to the mode switching process shown in FIG. 10, it is possible to realize the route guidance control in a manner suitable for the traveling frequency in consideration of such points. In the simple guidance mode, the voice guidance is suppressed as described above, but the vibration of the seat vibration device 70 and the steering vibration device 72 is generated in accordance with the output of the route guidance display, so that the driver displays the route guidance display. The possibility of missing is reduced. Therefore, when driving on a road with high driving frequency, the route guidance information is transmitted to the driver at an appropriate timing by preventing excessive transmission of the route guidance information by voice guidance. be able to.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. Can be added.

  For example, the switching processes shown in FIGS. 8 to 10 can be used in appropriate combination. For example, when music is being played back and the driving ability of the driver is high, a simple guidance mode without voice guidance (FIG. 4) or a simple guidance mode with no voice guidance and low output frequency (FIG. 7). ) On the other hand, when music is being played back and the driving ability of the driver is low, only the route guidance information with high importance (degree of attention) is output by voice guidance (FIG. 6). ) May be realized. Similarly, when music is being played and driving on a road with high driving frequency, a simple guidance mode without voice guidance (FIG. 4) or a simple guidance mode with no voice guidance and low output frequency. On the other hand, when music is being played back and the vehicle is traveling on a low-frequency road, only the route guidance information with high importance is output by voice guidance (FIG. 6). ) May be realized.

  Further, in the above-described embodiment, the stimulation is generated by vibration by the seat vibration device 70 and the steering vibration device 72 provided on the vehicle body part that is touched by a part of the driver's body, but the type of stimulation is arbitrary. For example, the stimulation may be generated by heat using a means such as a hot wire or a Peltier element provided on the steering wheel.

  In the above-described embodiment, vibration is generated by both the seat vibration device 70 and the steering vibration device 72 in the simple guidance mode, but only one of the seat vibration device 70 and the steering vibration device 72 is set. It is also possible to set the third stimulus generating means. Further, the vibration modes of the seat vibration device 70 and the steering vibration device 72 may be variable. For example, when the driver's driving ability is high, weak vibrations are generated compared to when the driver's driving ability is low. It may be generated only for a short time. Similarly, for example, when traveling on a road with a high traveling frequency, weak vibrations may be generated for a shorter time than when traveling on a road with a low traveling frequency.

  In the above-described embodiment, the route guidance display is output by the HUD 64 in the simple guidance mode, but the route guidance display may be displayed on the display device 62 instead of or in addition to the HUD 64.

  In the above-described embodiment, the driving ability of the driver and the traveling frequency of the traveling road are determined by the main control unit 20, but the driving ability of the driver and the traveling frequency of the traveling road are determined by the above driver information. The information regarding the driving ability of the driver and the traveling frequency of the traveling road may be acquired from the external center via communication.

  In the above-described embodiment, the main control unit 20 and the device control unit 22 may be integrally embodied as, for example, a navigation ECU, or some functions of the main control unit 20 and the device control unit 22 may be used for navigation. It may be realized by an ECU, and other functions may be realized by another ECU. The device control unit 22 controls all of the music playback device 50, the display device 62, the HUD 64, the audio output device 66, the seat vibration device 70, and the steering vibration device 72. May be controlled by another control unit. For example, the route guidance means 60 including the display device 62, the HUD 64, and the sound output device 66 and the vibration generating means including the seat vibration device 70 and the steering vibration device 72 may be controlled in cooperation by different control units. Good.

1 is a system configuration diagram showing a main configuration of an embodiment of a vehicle driving support apparatus 10 according to the present invention. It is a figure which shows the outline | summary of HUD64 in the cross section of the vehicle side view. It is a flowchart which shows an example of the route guidance control implement | achieved by the apparatus control part 22 at the time of normal guidance mode. It is a flowchart which shows an example of the route guidance control implement | achieved by the apparatus control part 22 at the time of simple guidance mode. It is a figure which shows an example of the route guidance display displayed by HUD64. It is a flowchart which shows another example of the route guidance control implement | achieved by the apparatus control part 22 at the time of simple guidance mode. It is a flowchart which shows another example of the route guidance control implement | achieved by the apparatus control part 22 at the time of simple guidance mode. 4 is a flowchart illustrating an example of a mode switching process executed by a main control unit 20 of the vehicle driving support device 10. 5 is a flowchart showing another example of the mode switching process executed by the main control unit 20 of the vehicle driving support device 10. 5 is a flowchart showing another example of the mode switching process executed by the main control unit 20 of the vehicle driving support device 10.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle drive assistance apparatus 20 Main control part 22 Equipment control part 30 Own vehicle position measurement part 32 Map database 40 Driver information database 50 Music reproduction apparatus 60 Route guidance means 62 Display apparatus 64 HUD (head up display)
64a Liquid crystal display 64b Concave mirror 64c Combiner 66 Audio output device 70 Seat vibration device 72 Steering vibration device

Claims (7)

Music playback means for playing music,
Route guidance means for outputting route guidance information;
A stimulus generating means for generating a stimulus for a sense other than the driver's hearing;
Control means for controlling the route guidance means and the stimulus generation means,
The control means is configured to output route guidance information by display by the route guidance means and generate the stimulus by the stimulus generation means when music by the music reproduction means is being reproduced. , A vehicle driving support device.   The vehicle driving support apparatus according to claim 1, wherein the control unit further suppresses output of route guidance information by voice by the route guidance unit when music by the music reproduction unit is being reproduced. Route guidance means for outputting route guidance information;
A stimulus generating means for generating a stimulus for a sense other than the driver's hearing;
Driving ability judgment means for judging the driving ability of the driver;
Control means for controlling the route guidance means and the stimulus generation means,
When the driving ability determining means determines that the driving ability of the driver is higher than a predetermined reference, the control means causes the route guiding means to output route guidance information by display and the stimulus generating means to A vehicle driving support device characterized by generating a stimulus.   The control means further suppresses output of route guidance information by voice by the route guidance means when the driving ability judgment means judges that the driving ability of the driver is higher than a predetermined reference. Vehicle driving support device. Route guidance means for outputting route guidance information;
A stimulus generating means for generating a stimulus for a sense other than the driver's hearing;
A driving frequency determining means for determining a driving frequency of the current driving road based on past driving history data;
Control means for controlling the route guidance means and the stimulus generation means,
The control means causes the route guidance means to output route guidance information by display when the travel frequency judgment means judges that the current travel frequency of the road is higher than a predetermined reference, and the stimulus generation means The driving assistance device for a vehicle, characterized in that the stimulus is generated by the above.   The control means further suppresses output of route guidance information by voice by the route guidance means when the driving ability judgment means judges that the driving ability of the driver is higher than a predetermined reference. Vehicle driving support device.   The said control means produces | generates the said stimulus by the said stimulus generation means at the timing synchronized with the timing which outputs the route guidance information by the display by the said route guidance means. Vehicle driving support device.

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