JP2003233298A - System for evaluating navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system to perform evaluation of operability, etc., of a navigation device under the condition simulating the actual using state. <P>SOLUTION: Steering wheel operation, etc., by an examinee 71 is transmitted as a vehicle operation signal 211 to a signal conversion section 12. The signal conversion section 12 calculates vehicle behaviors such as vehicle position and vehicle speed, and transmits a navigation device control signal 122 and a vehicle behavior signal 123 to a navigation device 31 and a running course picture generating section 13 respectively. The running course picture generating section 13, based on running course data 141 and the vehicle behavior signal 123, generates pictures of the running course supposed to be seen from a driver's seat 21 and displays the pictures on a screen 51 via a projector 41. On the other hand, the navigation device 31 controls map display on a display based on the vehicle position and vehicle speed, etc., included in the navigation device control signal 122. Thus, the navigation device 31 linked with the vehicle behaviors simulated by a drive simulator can be controlled. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a system capable of evaluating the visibility and operability of a navigation device having a vehicle guidance function using a simulated driving device.

[0002]

2. Description of the Related Art A simulated driving device (driving simulator) for simulating the driving of an automobile has been developed in order to evaluate the driving characteristics of a driver and the operability of an on-vehicle device. It becomes possible to record the operation log of the driver by the simulated driving device and evaluate the operability of the in-vehicle device in a state close to the actual driving.

In the evaluation of the operability of in-vehicle equipment, a subject is made to perform a switch operation of an audio equipment, for example, while driving the subject. The subject diverts the line of sight from the road to the operation panel of the audio device to search for the switch, or releases the one hand from the handle to operate the switch. Some of the simulated driving devices are provided with means for recording the deviation of the line of sight and the influence on the steering wheel operation as data. By evaluating the recorded data, it becomes possible to evaluate the safety and operability of the vehicle-mounted device. The simulated driving device is usually installed in a laboratory and does not move its position. Some of them have a movable driver's seat, but the entire device is fixed.

In recent years, navigation devices that support route guidance of vehicles, so-called car navigation systems, have become widespread. The navigation device is greatly different from the conventional vehicle-mounted device in the following points. For example, it has means for automatically determining the position of the vehicle from the GPS signal, and operates according to the position. For example, the map is automatically scrolled as the vehicle moves.

It requires complicated operations by the user, such as destination setting and map enlargement / reduction / scrolling. It has been pointed out that navigation devices are complicated to operate, and that they may be neglected in driving due to, for example, being distracted by map operations. In order to avoid this problem, it is essential to improve the visibility and operability of the navigation device.

[0006]

However, even if the navigation device is simply installed in the conventional simulated driving device, the visibility and operability cannot be evaluated correctly.
This is because GPS signals cannot normally be received in the laboratory. Even if the subject performs a driving operation in a place where the GPS signal can be received, the simulated driving device itself and the navigation device installed in the simulated driving device have fixed positions, so that the navigation device is located at the same point of the vehicle. Judge that it has stayed. Therefore, there is a problem that it is not possible to perform an appropriate evaluation under the condition of simulating the actual use situation, such as the visibility evaluation of the map scroll accompanying the vehicle movement and the switch operability evaluation.

[0007] Therefore, an object of the present invention is to provide a system capable of evaluating the operability of a navigation device under the condition of simulating an actual use situation.

[0008]

Means for Solving the Problems and Effects of the Invention An evaluation system according to claim 1 made to achieve the above object comprises a simulated driving device and a navigation device. When the subject performs a driving operation on the simulated driving device,
A vehicle behavior signal indicating a virtual vehicle behavior is generated based on the driving operation, and the scenery visually recognized by the subject on the virtual travel course is changed based on the generated vehicle behavior signal. Since this scenery is projected on the screen by the projection means or displayed by the scenery display means, the subject can feel as if he / she is actually driving. In this way, the navigation device performs display control according to the driving operation of the subject while performing the simulated driving. That is, the vehicle behavior signal based on the driving operation is obtained from the simulated driving device side, and the virtual own vehicle position on the virtual traveling course is determined. Then, the determined vehicle position is displayed on the display means together with the map around the vehicle position.

Therefore, assuming that the vehicle actually moves according to the driving operation of the subject, the display control that would occur if the vehicle had a navigation device would be appropriately reproduced. . Therefore, it is possible to perform an appropriate evaluation under a state in which the actual usage situation is simulated, such as the visibility evaluation of the map scroll accompanying the movement of the vehicle.

Further, as described in claim 2, when the navigation device has a navigation operation receiving means for receiving a navigation-related operation from the subject, the operability can be evaluated. The vehicle behavior signal generated by the vehicle behavior signal generation means may include at least latitude and longitude indicating the vehicle position (claim 3). Defining the vehicle position by the absolute coordinates based on latitude and longitude is effective when determining the vehicle position in the navigation device.
That is, since one vehicle position information is used between different devices, if this is defined by the relative position, it is necessary to standardize the positioning reference between both devices. On the other hand, if the absolute position is specified, it is not necessary to set any other reference.

Further, the vehicle behavior signal may further include a vehicle speed and a yaw rate (claim 4). Although it is possible to calculate the vehicle speed and the traveling direction from the position information, if the vehicle speed and the yaw rate are available, the driving behavior can be accurately transmitted by the navigation device when the vehicle turns right or left at the intersection.

Since it is preferable that the simulated driving can be executed in any scene, the simulated driving apparatus should be provided with an initial position setting means for setting a virtual initial position of the simulated vehicle. You may In this case, the vehicle behavior signal generation means generates a vehicle behavior signal by using the initial position set by the initial position setting means as the current vehicle position of the simulated vehicle. Therefore, the navigation device can also display the map at the set virtual initial position based on the vehicle behavior signal.

It should be noted that the initial position in this case may be set by latitude and longitude. The advantage in that case is the same as that in the case where the vehicle position is specified by latitude and longitude. Further, as described in claim 7, it is possible to save the time series of the vehicle behavior signal within a predetermined period as a vehicle behavior log file. In this way, the vehicle behavior log file can be used for analysis of the driving characteristics of the subject. In that case, for example, as described in claim 8, the driving operation of the subject can be reproduced as a scene visually recognized by the subject.

Further, as described in claim 9, it may be used to determine the behavior of another vehicle. This is based on the premise that another vehicle appears in the scenery visually recognized by the subject, as a device for realizing the simulated driving in a more realistic situation. The appearance of such another vehicle itself is a known technique, but the problem at that time is how to give the vehicle behavior to the other vehicle. Generally, the vehicle behavior of other vehicles is
A human being designs and gives the elapsed time starting from the simulation start time and the vehicle position as a series of time series data. Physical rules such as vehicle motion characteristics are used to complement the time-series data, but natural vehicle behavior is not always obtained, and therefore manual adjustments are required. On the other hand, in the case of the present invention, the vehicle behavior of the other vehicle can be given based on the driving operation actually performed by the person, so that a more natural vehicle behavior can be given to the other vehicle. Since this utilizes the result of the simulated driving performed in the past, it is not necessary for a human to manually design in order to give the vehicle behavior of another vehicle.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments to which the present invention is applied will be described below with reference to the drawings. Needless to say, the embodiment of the present invention is not limited to the following embodiments, and various forms can be adopted as long as they are within the technical scope of the present invention.

[First Embodiment] FIG. 1 shows a first embodiment of the navigation system evaluation system according to the present invention. First, the configuration will be described. The evaluation system of the present embodiment includes a navigation device 31 and a simulated driving device, and the simulated driving device is the computer 11 and the driver's seat 2.
1, a projector 41, a screen 51, an operation terminal 61, and the like.

The computer 11 has a signal conversion unit 12, a traveling course image generation unit 13, and a traveling course database 1 inside.
4, the auxiliary storage 81 and the like. Also, the driver's seat 21
Has a structure that imitates the actual driver's seat of the vehicle, such as the steering wheel (steering wheel), accelerator pedal, brake pedal, and instruments that indicate vehicle speed and engine speed. Of course, there is a seat and the like, and the subject 71 is arranged so that the subject 71 can sit on the seat and operate the handle and the like, and can also visually check the displays of the instruments.

Further, the navigation device 31 inputs, for example, an operation switch section composed of a mechanism switch and a remote control switch, an operation status from the operation switch section, and the like, an operation control section for controlling the entire navigation system, and a user setting. A route calculator that calculates an appropriate route (recommended route) to the destination based on the selected destination, and voice guidance that is required to smoothly drive the vehicle based on the recommended route calculated by the route calculator. A guide control unit for performing control processing provided to the user with a map or a simple map, a map data search unit, a data input unit for inputting map data or the like from the map DVD 32, a voice output control unit, a speaker, a display control unit and a display Is equipped with. In the case of a general navigation device, the current position (latitude, longitude) of the vehicle is calculated based on the GPS signal obtained from the GPS receiver. In addition, the yaw rate sensor measures the yaw rate. On the other hand, the navigation device 31 of the present embodiment does not have a GPS receiver or a yaw rate sensor, and the latitude / longitude and yaw rate obtained from them are externally (specifically, from the computer 11).
It is configured to receive by communication.

When operating the evaluation system of this embodiment, first, information necessary for system initialization, such as the initial vehicle position (latitude, longitude), etc., is input from the operation terminal 61 to the signal conversion unit 12 as the setting signal 611. Sent. After that, the test subject 71 installed a steering wheel, an accelerator,
When you operate the brake, etc., the operation is the vehicle operation signal 2
11 and is sent to the signal conversion unit 12. The signal conversion unit 12 calculates vehicle behavior such as latitude, longitude, vehicle speed, and vehicle direction from the operation signal. Then, the instrument control signal 121, the navigation device control signal 122, and the vehicle behavior signal 123 are transmitted to the driver's seat 21, the navigation device 31, and the traveling course image generation unit 13, respectively. The vehicle behavior signal 123 is also stored in the auxiliary memory 81 at the same time.

Details of these signals will be described with reference to FIG. FIG. 2 shows the contents of the vehicle operation signal 211, the instrument control signal 121, the navigation device control signal 122, and the vehicle behavior signal 123. Vehicle operation signal 211
Represents an operation of the subject 71, and includes an accelerator opening degree 2111, a brake pedal force 2112, and a steering steering angle 2
There are four signals, that is, a signal 113 and a drive range 2114. If the automatic transmission is mounted on the driver's seat 21 for example, the drive range 2114 takes values such as “P”, “R”, “N”, and “D”. The signal conversion unit 12 in the computer 11 uses the initial vehicle position given by the setting signal 611 and the vehicle operation signal 211.
Latitude 1221 and longitude 122 indicating the vehicle position based on
2, vehicle speed 1223, yaw rate 1224, vehicle direction 12
31, the traveling direction 1232 is calculated. The calculation method is a known technique. Then, the navigation device control signal 122 and the vehicle behavior signal 123 are generated from the calculation result.

The navigation device control signal 122
Is composed of four signals of latitude 1221, longitude 1222, vehicle speed 1223 and yaw rate 1224, and the vehicle behavior signal 123 is composed of six signals obtained by adding the vehicle direction 1231 and the traveling direction 1232 to these four signals. The instrument control signal 121 is composed of two signals, a vehicle speed 1211 and an engine speed 1212.

Returning to FIG. 1, the driver's seat 21 receiving the instrument control signal 121 controls the vehicle speed meter, tachometer, etc. accordingly. For example, information such as a speed of 50 km / h and an engine speed of 2500 rpm is displayed on the instruments of the driver's seat 21. Further, the traveling course image generation unit 13 in the computer 11 reads the traveling course data 141 from the traveling course database 14 and generates an image of the traveling course viewed from the driver's seat 21. Then, it is transmitted to the projector 41 as the traveling course video signal 131. The projector 41 that has received the traveling course image signal 131 projects the traveling course image on the screen 51. The test subject 71 performs a driving operation while looking at the image of the screen 51 and the screen of the navigation device 31. In this embodiment, as the traveling course image, an image that will be seen when traveling on an actually existing route (road) is prepared. As a method of creating this, for example, it is conceivable to use a technique of generating a three-dimensional cityscape of forests such as buildings using map data used in a navigation device. The cityscape generation technique is a known technique that has already been realized by a commercially available navigation device.

On the other hand, the navigation device control signal 122
The navigation device 31 that has received the information controls the map display on the built-in display based on the vehicle position (latitude, longitude), vehicle speed, and yaw rate included therein. As a result, the navigation device 31 can be controlled in conjunction with the vehicle behavior simulated by the simulated driving device.

Since it is necessary for the traveling course image projected by the projector 41 and the map displayed by the navigation device 31 to match, the traveling course data 141 stored in the traveling course database 14 is required.
The map DVD 32 used by the navigation device 31.
It is necessary to match with the map data stored in.
As a method thereof, it is appropriate to create the traveling course data 141 according to the actual map data. Figure 3
Shown in.

FIG. 3 shows traveling data 141 created based on a map of Kyoto city. Own vehicle position 101 is 35 degrees 1 north latitude
It corresponds to 1 minute and 135 degrees 45 minutes and 43 seconds east longitude. FIG. 3 shows that the vehicle of the simulated driving device is simulating a driving state in which the vehicle is moving northward on the road adjacent to the west of Kyoto Imperial Palace 30. The image shown in is displayed. In the screen image 40, a fence showing the Kyoto Imperial Palace 30 is displayed on the right side of the image. That is, the driving data 14 based on the city of Kyoto in FIG.
1 enables simulated driving in Kyoto city. On this occasion,
The latitude 1221 and the longitude 1222 of the navigation device control signal 122 output from the computer 11 are set to the latitude 35 degrees 1 minute 1 second north and the longitude 135 degrees 45 minutes 43 seconds east, respectively, and transmitted to the navigation device 31. Thereby, the navigation device 31 can display the Kyoto city map at the same position as the screen image 40 on the screen. For example, suppose that the vehicle turns right at the intersection of Karasuma Imadegawa in the traveling data 141 of FIG. 3 (latitude 35 degrees 1 minute 32 seconds, east longitude 135 degrees 45 minutes 43 seconds) by operation of the subject 71
Based on the vehicle operation signal 211, the signal conversion unit 12 in the computer 11 sets the yaw rate 1224 of the navigation device control signal 122 to the yaw rate for a right turn, and sends it to the navigation device 31. As a result, the navigation device 31 can detect that the vehicle has changed its course to the east, and can change the map display accordingly.

The operation of the evaluation system of this embodiment will be described with reference to the flowchart of FIG. In the first step S501 of FIG. 5, the initial vehicle position (latitude, longitude) and the like received via the operation terminal 61 are set by the setting signal 6
The signal conversion unit 12 reads it as 11. Then, the vehicle operation signal 211 obtained by the subject 71 operating the steering wheel, accelerator, brake, etc. of the driver's seat 21.
Is read by the signal converter 12 (from the driver's seat 21) (S
502). The signal conversion unit 12 calculates vehicle behavior such as latitude, longitude, vehicle speed, and vehicle direction from the read vehicle operation signal 211 (S503).

The signal converter 12 generates the navigation device control signal 122 based on the calculated vehicle behavior (S504) and sends it to the navigation device 31 (S).
505). On the other hand, the traveling course image generation unit 13 inputs the vehicle behavior signal 123 from the signal conversion unit 12 and generates a traveling course image signal (S506). Then, since the generated traveling course image signal 131 is output to the projector 41, the traveling course image is projected from the projector 41 toward the screen 51 (S507).

Further, the vehicle behavior signal 123 is output from the signal conversion unit 12 to the auxiliary storage 81, and the vehicle behavior signal 123 is stored in the auxiliary storage 81 as a vehicle behavior log file (S508). After that, the process returns to S502 and the processes of S502 to S508 are repeated.

Incidentally, in order to obtain a feeling close to the actual running,
It is desirable to suppress the execution time of S502 to S507 to 1/30 seconds or less. In other words, it is desirable to draw the running course image projected on the screen at an update rate of 30 Hz or higher. On the other hand, it is ideal to save the vehicle behavior in S508 at the image update interval (for example, 1/30 second), but in order to reduce the file size, the vehicle behavior may be saved for every two seconds. It is possible.

An example of the vehicle behavior log file is shown in FIG.
In this example, a case where the vehicle behavior is saved at 2 second intervals will be described. The saved contents are the elapsed time (0, 2, 4 ... [sec]) from the start of the simulated driving, latitude / longitude [degrees minutes seconds], vehicle speed [km
/ h], yaw rate [deg / sec], vehicle direction (true north is 0 [deg]
The angle [deg]) toward the vehicle when is stored.
It is also possible to add other vehicle behavior data, for example, the brake pedal force, if necessary.

As described above, in the evaluation system of the present embodiment, it is possible to execute the simulated driving using the traveling course matched to the actual map data, and the vehicle position, the vehicle speed, and the yaw rate are transferred from the simulated driving device to the navigation device 31. Since the information is transmitted, the traveling course image projected by the simulated driving device and the map screen of the navigation device 31 can be linked. As a result, the visibility and operability of the navigation device 31 such as a map scroll can be evaluated in a state close to actual driving.

Of these, when evaluating the operability, it is possible to set a route by the navigation device 31 and drive the simulated driving device according to the route guidance. The route guidance from Kyoto Station to Kyoto Imperial Palace 30 (see FIGS. 3 and 4) will be described as an example. Here, it is assumed that the traveling course database 14 stores traveling course data created from a map of Kyoto city including Kyoto Station and Kyoto Imperial Palace 30. The initial vehicle position of the simulated driving device is set to the latitude and longitude of Kyoto station. The latitude and longitude are transmitted to the navigation device 31 by the navigation device control signal 122, and the navigation device 31 sets the current location to Kyoto station. Here, when the subject 71 sets the Kyoto Imperial Palace 30 as a destination via the operation switch section of the navigation device 31, the navigation device 31 calculates the route from the current Kyoto station to the Kyoto Imperial Palace 30, and starts route guidance. When the subject 71 performs a driving operation according to the route guidance, the screen 5 is linked with the (virtual) vehicle behavior corresponding to the driving operation.
The landscape image projected on 1 and the map screen of the navigation device 31 move. Since the present vehicle position 101 of FIG. 3, the current position of the navigation device 31 and the moving direction of the vehicle are always the same, it is possible to drive the simulated driving device according to the route guidance and reach the destination Kyoto Imperial Palace 30. in this way,
Set the route of the navigation device 31, guide the route,
It is possible to simulate the driving operation of the vehicle according to it. for that reason,
The operability of the navigation device 31 can be evaluated in a situation closer to actual driving. Of course, it is possible to change the destination during the route guidance or to simulate the situation when the vehicle deviates from the route.

By the way, the vehicle behavior log file (see FIG. 6) stored in the auxiliary memory 81 is used for analysis of the driving characteristics of the subject, and as a specific example, reproduction of the driving behavior of the subject and appearance in a virtual landscape. It is possible to control the behavior of another vehicle. Each is shown as a second embodiment and a third embodiment.

[Second Embodiment] FIG. 7 shows the configuration of the second embodiment. The basic components are the same as those in the first embodiment, so the same reference numerals are given and the description thereof is omitted, but the signal flow is partially different. The different part will be described.

When the vehicle behavior file name is designated on the operation terminal 61, the designated content is transmitted to the signal conversion section 12 by the setting signal 611. The signal conversion unit 12 sequentially reads the designated vehicle behavior file from the auxiliary storage 81 for each one-time data. The data is used as the reproduction vehicle behavior signal 8
11 The signal conversion unit 12 determines the instrument control signal 121, the navigation device control signal 122, and the vehicle behavior signal 123 based on the read reproduction vehicle behavior signal 811.
To generate a driver seat 21 and a navigation device 3, respectively.
1, transmitted to the traveling course image generation unit 13. Driver's seat 2
1, navigation device 31, traveling course image generation unit 1
In 3, the received signal is processed in the same way as in the first embodiment.

The above operation behavior reproduction operation will be described with reference to the flowchart of FIG. First step S in FIG.
In 801, the vehicle behavior log file name received via the operation terminal 61 is used as the setting signal 611 in the signal conversion unit 1.
2 reads. Then, in S802, it is determined whether or not all the data of the vehicle behavior log file has been processed, and if all the data have been processed (S802: YES), this processing ends.

On the other hand, when all the data in the vehicle behavior log file has not been processed (S802: NO), the signal conversion unit 12 reproduces the vehicle behavior data for one hour from the vehicle behavior log file and reproduces the vehicle behavior signal 811. Is read as (S803). Then, the signal conversion unit 12 generates the navigation device control signal 122 based on the read vehicle behavior data (S804), and the navigation device 3
1 (S805).

On the other hand, the traveling course image generation unit 13 inputs the vehicle behavior signal 123 from the signal conversion unit 12 and generates a traveling course image signal (S806). Then, since the generated traveling course image signal 131 is output to the projector 41, the traveling course image is projected from the projector 41 toward the screen 51 (S807). Then, it returns to S802 and repeats the processing of S802 to S807.

By performing such an operation, the simulated driving device of the present system can read the vehicle behavior log file and reproduce the driving behavior of the subject. As a result, the operation of each driver can be analyzed after the simulated driving trial. Also, if necessary, it is possible to repeatedly reproduce a specific driving situation.

[Third Embodiment] By the way, in the simulated driving apparatus, another vehicle is generally made to appear in a landscape image (driving course image), and a driving operation of the own vehicle is performed in consideration of the presence of the other vehicle. In many cases, it enables a driving simulation in a situation close to reality. For example, in Figure 9,
It is a traveling course image simulating a state in which another vehicle 102 is traveling in front of the own vehicle. In the evaluation of the driving characteristics using the simulated driving device, the subject is given a task, for example, to follow another vehicle 102 running ahead while keeping a certain inter-vehicle distance. The problem here is how to give the vehicle behavior of the other vehicle 102. In general, the vehicle behavior of the other vehicle 102 is often designed and given by a person as a series of time-series data of the elapsed time starting from the simulation start time and the vehicle position.
Although physical rules such as vehicle motion characteristics are used to complement the time series data, it is not always possible to obtain natural vehicle behavior, and in the end fine adjustments were required manually. For example, when the traffic light changes from red to blue, some drivers may try to start and move the car forward (so-called start-off), but if the traffic light remains red, the brake may be pressed again. In order to realize a natural traffic simulation, it is necessary to reproduce by taking into account these minute movements. Generating such a vehicle behavior by the conventional method requires a lot of trouble.

On the other hand, in the present embodiment, a vehicle behavior log file obtained from another trial of simulated driving performed in advance is used. Since the vehicle behavior file is a record of the test subject's driving, it can be faithfully reproduced if there is a driving scene such as the stepping on the brake as described above. Therefore, if a vehicle behavior log file is given as the vehicle behavior of the other vehicle 102 and the vehicle travels according to the contents, a natural movement of the other vehicle can be reproduced. In the task of following another vehicle 102, the simulated driving may be started with the initial position of the own vehicle placed behind the other vehicle. The basic components of the third embodiment are the same as those of the second embodiment shown in FIG. 7, and therefore the same reference numerals are given and the description thereof is omitted. However, as in the case of the first embodiment, the vehicle operation signal 21 from the driver seat 21
1 is input to the signal conversion unit 12.

Next, the operation including the other vehicle behavior control using this vehicle behavior file will be described with reference to the flowchart of FIG. First step S1 of FIG.
In 001, the signal conversion unit 12 reads the vehicle behavior log file name and the vehicle initial position received via the operation terminal 61 as the setting signal 611. Then, in S1002, it is determined whether or not all the data in the vehicle behavior log file has been processed, and if all the data has been processed (S1002: YE
S), and this processing ends.

On the other hand, when all the data in the vehicle behavior log file has not been processed (S1002: NO), the signal conversion unit 12 reproduces the vehicle behavior data for one hour from the vehicle behavior log file and reproduces the vehicle behavior signal 811. Is read as (S1003). This vehicle behavior data is used for other vehicles 102.
It is sent from the signal conversion unit 12 to the traveling course image generation unit 13 together with instruction data indicating how much the initial position (see FIG. 9) should be arranged ahead of the initial position of the own vehicle. Then, the traveling course image generation unit 13 sets the behavior of the other vehicle 102 based on the vehicle behavior data sent from the signal conversion unit 12 (S1004).

Next, the signal converter 12 outputs the vehicle operation signal 211 obtained by the subject 71 operating the steering wheel, accelerator, brake, etc. of the driver's seat 21.
It is read from 1 (S1005). The signal conversion unit 12 calculates the vehicle behavior of the vehicle such as the latitude, longitude, vehicle speed, and vehicle direction of the vehicle from the read vehicle operation signal 211 (S1006). Then, the vehicle behavior signal 123 indicating the calculated vehicle behavior of the own vehicle is sent from the signal conversion unit 12 to the traveling course image generation unit 13.

In the traveling course image generation unit 13, the vehicle behavior signal 123 input from the signal conversion unit 12 and the above S10.
A travel course video signal is generated based on the vehicle behavior of the other vehicle set in 04 (S1007). If the other vehicle 102 is visible from the own vehicle position, the other vehicle 102 is also included in the traveling course image (see the screen image 90 in FIG. 9). The generated running course video signal 13
1 is output to the projector 41, and the traveling course image is projected from the projector 41 toward the screen 51 (S100).
8). Then, the process returns to S1002 and S1002 to S10.
The processing of 08 is repeated.

As described above, in this embodiment, the vehicle behavior of the other vehicle can be given based on the driving operation actually performed by the person, so that a more natural vehicle behavior can be given to the other vehicle. Since this utilizes the result of the simulated driving performed in the past, it is not necessary for a human to manually design in order to give the vehicle behavior of another vehicle. Although only one other vehicle 102 is shown in FIG. 9, a plurality of other vehicles 102 may appear. Further, although FIG. 10 has been described centering on the processing when another vehicle appears in the traveling course image, as in the case of the first embodiment, from the signal conversion unit 12 to the navigation device 31.
It goes without saying that it is possible to output a control signal to and to link the traveling course image projected by the simulated driving device and the map screen of the navigation device 31. Since there are many cases where another vehicle is present in the front in the actual driving situation, this allows the navigation device 3 to be closer to the actual driving.
The visibility and operability in 1 can be evaluated.

The correspondence relationship between the configuration described in the above embodiment and the means described in the claims will be described. First, a steering wheel, an accelerator, a brake, etc. provided in the driver's seat of the simulated driving device correspond to "driving operation receiving means" and "initial position setting means", and the projector 41 corresponds to "projecting means". In addition, the signal conversion unit 1 in the computer 11
2 corresponds to “vehicle behavior signal generation means”, the traveling course image generation unit 13 corresponds to “landscape control means”, and auxiliary storage 8
1 corresponds to the "storing means". Further, the display control unit, the display and the operation switch unit included in the navigation device 31 correspond to “display control unit”, “display unit” and “navigation operation receiving unit”, respectively.

[Others] In the above embodiment, the traveling course image is projected on the screen 51 by the projecting means 41, but it may be displayed on a large display device, for example. In this case, this display device corresponds to "landscape display means".

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a system according to a first embodiment.

FIG. 2 is an explanatory diagram of vehicle operation signals, instrument control signals, navigation device control signals, and vehicle behavior signals.

FIG. 3 is an explanatory diagram of travel data created based on a map of Kyoto city.

FIG. 4 is an explanatory diagram of an example of an image projected on a screen.

FIG. 5 is a flowchart showing an operation in the system of the first embodiment.

FIG. 6 is an explanatory diagram showing an example of a vehicle behavior log file.

FIG. 7 is a schematic configuration diagram of a system of a second embodiment.

FIG. 8 is a flowchart showing an operation in the system of the second embodiment.

FIG. 9 is an explanatory diagram of a traveling course image simulating a state in which another vehicle is traveling in front of the own vehicle.

FIG. 10 is a flowchart showing an operation in the system of the third embodiment.

[Explanation of symbols]

11 ... Calculator, 12 ... Signal conversion unit, 13 ... Travel course image generation unit, 14 ... Travel course database, 21 ... Driver's seat, 31 ... Navigation device, 32 ... Map DVD, 4
1 ... Projector, 51 ... Screen, 61 ... Operating terminal, 71
... subject, 81 ... auxiliary memory, 121 ... instrument control signal,
122 ... Navigation device control signal, 123 ... Vehicle behavior signal, 131 ... Travel course image signal, 141 ... Travel course data, 211 ... Vehicle operation signal, 611 ... Setting signal, 1211 ... Vehicle speed, 1212 ... Engine speed, 12
21 ... Latitude, 1222 ... Longitude, 1223 ... Vehicle speed, 122
4 ... yaw rate, 1231 ... vehicle direction, 1234 ... traveling direction, 2111 ... accelerator opening degree, 2112 ... brake pedal force, 2113 ... steering rudder angle, 2114 ... drive range

Claims (9)

[Claims] 1. An evaluation system for a navigation device, comprising: a simulated driving device having driving operation receiving means for receiving a driving operation of a subject on a simulated vehicle; and a navigation device for guiding a route of the vehicle, wherein the simulated driving device is , Either a projecting means for projecting a landscape visually recognized by the subject on a screen on a predetermined virtual travel course or a landscape display means for displaying the landscape, and a driving operation of the subject received by the driving operation receiving means Based on the vehicle behavior signal generation means for generating a vehicle behavior signal indicating a virtual vehicle behavior, and based on the vehicle behavior signal generated by the vehicle behavior signal generation means, from a subject on the virtual travel course. And a landscape control means for changing and controlling the visually-recognized landscape. On the other hand, the navigation device Display means capable of displaying a map including the predetermined virtual travel course, and a virtual vehicle on the predetermined virtual travel course based on the vehicle behavior signal generated by the vehicle behavior signal generation means of the simulated driving device. An evaluation system for a navigation device, comprising: a display control unit that determines the own vehicle position and displays the determined own vehicle position on the display unit together with a map around the own vehicle position. 2. The navigation device evaluation system according to claim 1, wherein the navigation device includes a navigation operation acceptance unit that accepts navigation-related operations from the subject. 3. The navigation system evaluation system according to claim 1, wherein the vehicle behavior signal generation means generates the vehicle behavior signal including at least latitude and longitude indicating a vehicle position. Navigation device evaluation system. 4. The navigation device evaluation system according to claim 3, wherein the vehicle behavior signal generation means further generates the vehicle behavior signal including a vehicle speed and a yaw rate. 5. The navigation device evaluation system according to claim 1, wherein the simulated driving device includes initial position setting means for setting a virtual initial position of the simulated vehicle, The navigation system evaluation system, wherein the vehicle behavior signal generation means generates the vehicle behavior signal using the initial position set by the initial position setting means as the present vehicle position of the simulated vehicle. 6. The navigation device evaluation system according to claim 5, wherein the initial position setting means sets the initial position in latitude and longitude. 7. The navigation device evaluation system according to any one of claims 1 to 6, further comprising a vehicle behavior log showing a time series of the vehicle behavior signal generated by the vehicle behavior signal generation means within a predetermined period. An evaluation system of a navigation device, comprising a storage means for storing the file. 8. The navigation system evaluation system according to claim 7, wherein the landscape control means stores the vehicle stored by the storage means instead of the vehicle behavior signal generated by the vehicle behavior signal generation means. An evaluation system for a navigation device, characterized in that the scenery is changed and controlled based on a behavior log file. 9. The evaluation system for a navigation device according to claim 7, wherein the scenery control means allows a virtual other vehicle visually recognized by the subject to appear in the scenery, and A navigation device evaluation system, characterized in that the vehicle behavior is determined based on the vehicle behavior log file stored by the storage means.