JP2003051097A - Device and method for deciding car driving mentality and device and method for supporting driving - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving support technology for making a driver maintain safe driving by deciding a psychological state of the driver with high accuracy and also making the driver recognize the decision results and also to provide a driving mentality deciding device that is relatively easily applied to the existing vehicle. SOLUTION: An input system 10, a data management system 20, a decision control system 30 and an output system 40 are provided to the driving mentality deciding device. The input system 10 associates an actual distance to be secured between the vehicle of the driver and other vehicles with a vehicle speed at that time in actual driving and inputs the actual distance associated with the vehicle speed to the decision control system 30. The decision control system 30 reads a basic distance between vehicles to be reference of a psychological decision from a data management system 20 while made to correspond to a vehicle speed acquired by the input system 10, compares the actual distance between the vehicle inputted from the input system 10 with the basic distance between the vehicles read from the data management system 20 and decides the psychological state of the driver on the basis of the difference between the distances between the vehicles. The decision results are also outputted to the driver side via the output system 40.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a technique for determining a psychological state of a vehicle driver. Further, the present invention relates to a technique for supporting driving based on the determination result.

[0002]

2. Description of the Related Art As a conventional technique of this type, for example, there is a driver condition determining device disclosed in Japanese Patent No. 3027786. According to the driver state determination device disclosed in the publication, the driver's line-of-sight movement is detected during traveling, and the driver's psychological state is determined from the distribution of the line-of-sight movement.

More specifically, the line-of-sight movement of the driver is analyzed using a CCD camera or an image analysis device, and for example, when the line-of-sight is held at a certain point for a long time, or there is an obstacle on the road, When the frequency of line-of-sight movement to an obstacle decreases, it is judged as "blunt driving".

[0004]

However, the above-mentioned driver state determination device requires a large-scale device such as a CCD camera and an image analysis device, so that it is still many in terms of versatility and cost for existing vehicles. There are some points left to improve. Further, the present inventors have noticed that the distribution of the line-of-sight movement, which is a criterion, cannot always be an accurate criterion. That is, comparing a driver with a short driving history and a driver with a long driving history, the distributions of the line-of-sight movements differ greatly even with the same attention.
Further, when the low-speed traveling and the high-speed traveling are compared, the frequency of the line-of-sight movement differs depending on the difference in the traveling speed. Therefore, in the conventional driver state determination device, an error may occur in the determination of the psychological state.

The present invention has been made in view of the above points, and accurately determines the psychological state of a driver, and
An object of the present invention is to provide a driving support technique for maintaining safe driving by making a driver recognize the determination result. Another object is to provide a driving psychological determination device that is relatively easy to apply to existing vehicles.

[0006]

In order to solve the above technical problems, the present invention has the following device configuration. That is, a driving psychological determination device that determines the psychological state of the driver based on the inter-vehicle distance, the vehicle speed detection means for detecting the vehicle speed at the time of driving, and the actual inter-vehicle distance secured between other vehicles during the driving. Is input in association with the vehicle speed detected above, and basic vehicle distance reading means for reading the basic vehicle distance, which is a reference for psychological determination, from the vehicle distance recording means in correspondence with the vehicle speed detected above. And a psychological determination unit that determines the psychological state of the driver based on the difference between the inter-vehicle distances by comparing the actual inter-vehicle distance input above and the basic inter-vehicle distance read out above. Is characterized by.

According to the driving psychological determination device thus constructed, the psychological state determination accuracy is enhanced by comparing the inter-vehicle distances with the vehicle speed taken into consideration. That is, if the actual inter-vehicle distance acquired according to the actual running is input in association with the vehicle speed at that time, and the basic inter-vehicle distance that should be the criterion for psychological determination is read out in association with the vehicle speed at that time, Consistency is ensured in the distance comparison, so that the driver's psychological judgment can be accurately made.

Regarding the basic inter-vehicle distance read out in the above, the basic inter-vehicle distance read out in the above is an inter-vehicle distance for ensuring safe driving of the driver, and in the psychological determination means, the actual inter-vehicle distance inputted in the above. It is also possible to determine that the psychological state is disturbed when the distance falls below the basic inter-vehicle distance.

Here, the inter-vehicle distance for ensuring safe traveling means the inter-vehicle distance generally called safe, and
The inter-vehicle distance is set considering the driver's skill and can be estimated from various preliminary experiments. Then, the psychological determination means determines that the psychological state is disturbed when the input actual inter-vehicle distance is shorter than the basic inter-vehicle distance.

Further, in the present device configuration, a driver specifying means for specifying a driver, and an inter-vehicle history registration means for registering an actual inter-vehicle distance input during driving of the driver as a vehicle-specific inter-vehicle history, The vehicle-to-vehicle distance may be read from the vehicle-to-vehicle history unique to the driver.

With this configuration, the driver is specified, and the basic inter-vehicle distance, which is a criterion for determination, is set based on the actual inter-vehicle distance (inter-vehicle history) secured in the past during the driving of the driver. That is, the vehicle-to-vehicle distance that is ensured during traveling varies somewhat depending on the experience and habits of the driver. Therefore, if the inter-vehicle distance peculiar to the driver is learned and used for setting the basic inter-vehicle distance, the psychological state of the driver can be determined more accurately.

Further, a road condition input means for inputting a road condition is further provided, and in the psychological judgment means, the psychological condition of the driver is provided on the condition that the road condition inputted in the above is a road condition which is easily congested. May be determined.

That is, if the road condition is easily congested,
Since the number of times the actual vehicle-to-vehicle distance is input increases in accordance with actual traveling, the psychological state determination accuracy can be further improved.

In order to solve the above technical problems, the following method may be used in the present invention. That is, a driving psychological determination method for determining the psychological state of the driver based on the inter-vehicle distance, the step of detecting the vehicle speed during driving,
The step of inputting the actual inter-vehicle distance secured between other vehicles during the driving in association with the vehicle speed detected in the above, and the basic inter-vehicle distance serving as a reference for psychological determination in correspondence with the vehicle speed detected in the above And a step of comparing the actual inter-vehicle distance input in the above with the basic inter-vehicle distance read in above and determining the psychological state of the driver based on the difference in the inter-vehicle distance. Use the driving psychology determination method.

Further, the basic inter-vehicle distance read out in the above is an inter-vehicle distance for ensuring the safe running of the driver, and in the step of judging the psychological state, the actual inter-vehicle distance input is the basic inter-vehicle distance. It is also possible to determine that the psychological state is disturbed when the distance between the vehicles falls below the vehicle distance.

Further, the method further includes a step of identifying a driver and a step of registering an actual vehicle-to-vehicle distance input during driving of the driver as a vehicle-to-vehicle distance history unique to the driver, wherein the basic vehicle-to-vehicle distance read out is , May be read from the vehicle-to-vehicle distance history peculiar to the driver.

Further, the method further includes a step of inputting a road condition, and in the step of determining the psychological condition, the psychological condition of the driver is conditioned on the condition that the road condition input in the above is a road condition which is easily congested. You may judge a state.

In order to solve the above technical problems, the present invention may have the following configurations. That is, a driving assistance device that determines the psychological state of the driver based on the inter-vehicle distance and outputs the determination result to the driver, and a vehicle speed detection unit that detects the vehicle speed during driving, and other The actual vehicle-to-vehicle distance secured between the vehicle and the actual vehicle-to-vehicle distance input means for inputting in association with the vehicle speed detected above, and the basic vehicle-to-vehicle distance that serves as a reference for psychological determination are made to correspond to the vehicle speed detected above. A basic inter-vehicle distance reading means for reading from the inter-vehicle distance recording means, and an actual inter-vehicle distance input as described above,
Comparing the basic inter-vehicle distance read in the above, a psychological determination means for determining the psychological state of the driver based on the difference in the inter-vehicle distance, and an output device for outputting the determination result to the driver, And a driving support device.

A method of driving assistance in which the psychological state of the driver is judged based on the inter-vehicle distance and the judgment result is output to the driver, the vehicle speed during driving is detected, and another vehicle is driven during the driving. The actual vehicle-to-vehicle distance secured between and is input in association with the vehicle speed detected above, and the basic vehicle-to-vehicle distance that serves as a reference for psychological determination is read out in association with the vehicle speed detected above and input in the above. A driving support method that compares the actual inter-vehicle distance with the basic inter-vehicle distance read out above, determines the psychological state of the driver based on the difference in the inter-vehicle distance, and outputs the determination result to the driver. And

According to the psychological determination device and the psychological determination method configured as described above, the inter-vehicle distance acquired in accordance with actual traveling is input in association with the vehicle speed at that time, and the vehicle speed at that time is input. Correspondingly, the basic inter-vehicle distance, which is the determination criterion, is read out, and the psychological state of the driver is determined by comparing them. Further, the driver's safe driving is maintained by outputting the determination result to the driver side.

The output means for outputting the determination result may have any device configuration that allows the driver to recognize the output. For example, a navigation device equipped with an image display device and a voice output device is suitable. It can be illustrated as an example.
Of course, the device illustrated here is just an example,
The configuration is not particularly limited as long as it is a device configuration having an output that appeals to the driver's sight, hearing, smell, touch, and the like.

As described above, according to the driving support technology of the present invention, the driver's psychological state is accurately determined, and the driver is made aware of the determination result to maintain safe driving. You can Further, since it can be realized by using a device mounted on an existing vehicle such as a vehicle speed sensor and a distance measuring sensor, it is advantageous in terms of versatility and cost for the existing vehicle.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the driving support technology according to the present invention will be described below.

<First Embodiment> First, a system configuration of a psychological determination device 1 which is an embodiment of a driving support technique according to the present invention will be described. Note that the system configuration described below is merely an embodiment, and the configuration is
It can be arbitrarily changed without departing from the scope of the claims.

The psychological determination device 1 includes an input system 10 for acquiring various data output during vehicle driving, and a data management system for recording and managing driver-specific data that serves as a reference for psychological determination for each driver. 20 and a determination control system 30 that determines the psychological state of the driver by comparing the data acquired by the input system 10 with the data recorded in the data management system 20, and constitutes the system.

The input system 10 corresponds to the actual vehicle-to-vehicle distance input means according to the present invention, and is changed by the operation of the accelerator pedal 11, the brake pedal 12, etc. which also serve as an interface between the vehicle and the driver as shown in FIG. The sensors 15, 19 and the like for detecting the vehicle speed and the inter-vehicle distance are provided. Then, when the driver's psychological state should be determined,
The distance measurement sensor 19 which is one of the sensors is used to measure the inter-vehicle distance (actual inter-vehicle distance) to another vehicle, and the vehicle speed sensor 15 detects the vehicle speed at that time. Then, the inter-vehicle distance and the vehicle speed are associated with each other in the input signal processing circuit 16 and output to the data management system 20 and the determination control system 30.

In this embodiment, a laser radar or the like used in the cruise control system is used as the distance measuring sensor 19. The cruise control system is a system that measures the inter-vehicle distance from the preceding vehicle with a laser radar and adjusts the traveling speed of the host vehicle based on the measured value. It is already installed in some commercial vehicles. It is an existing system.

The input system 10 is further provided with a navigation device 17 for grasping road conditions during traveling and a driver identification device 18 for identifying a driver as a judgment target. The navigation device 17 specifies the current travel route by performing mutual communication with the artificial satellite, and
The amount of traffic is grasped based on information from (Road Information Communication System). Then, the road conditions are output to the determination control system 30 via the input signal processing circuit 16.
That is, in the present embodiment, the navigation device 17
Is used to configure road condition input means.

The driver identifying device 18 corresponds to driver identifying means, and is a device for identifying the driver from the waiting time until the ignition switch is operated after getting on the vehicle, the seat position setting operation, and the like. Note that the device configuration illustrated here is merely an example, and may be, for example, a device configuration in which a driver setting button is prepared and the driver is specified from the output of the setting button. Further, the output thereof is input to the input signal processing circuit 16, and the input signal processing circuit 16 adds the predetermined identification code determined for each driver to the vehicle speed and the inter-vehicle distance detected above to make the determination control system 3
0 and output to the data management system 20. That is, the input system 10 acquires the vehicle-to-vehicle distance (actual vehicle-to-vehicle distance) secured during the actual traveling in association with the vehicle speed at that time and the driver.

On the other hand, the data management system 20 for reading the data acquired by the input system 10 has a recording device 21 such as RAM, ROM, HD (hard disk) as a main component, and the recording device 21 includes a driver. An inter-vehicle distance correspondence map 22 for registering a unique inter-vehicle history, that is, an inter-vehicle distance secured during past travel is prepared. Although the recording device 21 can be configured as a single unit here, it is preferable that the recording device 21 is configured by using a learning function or the like which is one function of the navigation device 17. As described above, the data management system 20 constitutes the inter-vehicle distance recording means and the inter-vehicle distance registration means according to the present invention.

The inter-vehicle distance correspondence map 22 is created with the vehicle speed and the inter-vehicle distance as parameters as shown in FIG. 2, and the inter-vehicle history unique to the driver is recorded on the map 22. As can be seen from FIG. 2,
The driver-specific inter-vehicle distance varies depending on the driver and the vehicle speed.

Next, the judgment control system 30 will be described. The determination control system 30 includes a psychological determination circuit 31 including a CPU, a RAM, a ROM, and the like, and the actual inter-vehicle distance acquired in accordance with actual traveling and the driver-specific information registered in the data management system 20. The psychological state of the driver is determined by comparing the inter-vehicle history. That is, the psychological determination means according to the present invention is configured.

FIG. 4 is a flow chart of a psychological judgment program processed by the judgment control system 30. Hereinafter, a method for determining a psychological state will be described with reference to this flowchart.

First, the judgment control system 30 specifies the driver to be judged based on the output from the driver specifying device 18 (step 101). That is, in this step,
Specify the following history to be read at the time of psychological judgment later,
Hereinafter, only the inter-vehicle history corresponding to the driver is output from the data management system 20.

Then, based on the output from the navigation device 17, it is judged whether or not the route currently running is a road condition suitable for carrying out the psychological judgment (step 102). That is, in this step, the navigation device 17 detects an area with a large amount of traffic or a road that is easily congested, and the psychological determination is started if the road condition is such that a certain amount of traffic or congestion is expected. Therefore, the process proceeds to step 103.
When the determination is negative, the control program is temporarily terminated.

Incidentally, FIG. 5 shows the relationship between the road condition and the traveling position. That is, the points X and Y in FIG.
While traveling in an urban area with a relatively large amount of traffic, it is determined that the situation is suitable for psychological determination, and the process proceeds to step 103. Further, when traveling on a road with a small traffic volume such as point Z (wide agricultural road) in FIG. 5, it is determined that there are few opportunities for psychological determination, and this control is temporarily terminated. However, in the case where a sudden congestion occurs such as a rush hour in the morning and evening, the fact is detected based on the information from the navigation device 17, and it is determined that the traveling condition is suitable for the psychological determination and the step is performed. 10
Go to 3.

Next, in the judgment control system 30, from the input system 10 to start the psychological judgment, the vehicle speed according to the actual running,
And the inter-vehicle distance are input to the psychological determination circuit 31 (step 103). In this step, the vehicle speed change amount is a predetermined change amount (for example, 10 km to 50 km) after the start of this control so that the inter-vehicle distance can be acquired in the widest possible speed range.
has been reached, and has also traveled a certain distance (for example, 5k).
The vehicle-to-vehicle distance is acquired in various speed ranges based on various conditions such as whether the vehicle has traveled for m) or has passed a predetermined traveling time (10 minutes). It should be noted that the various conditions described above are not essential in the present control program, and can be appropriately changed as desired.

Subsequently, in the judgment control system 30, step 1
From the vehicle speed and the inter-vehicle distance input in 03, the average inter-vehicle distance Sd corresponding to each vehicle speed is calculated (step 104).
In this control program, in calculating the average inter-vehicle distance Sd, 0 to 10 km, 20 km to 30 km, 30
The average value of the inter-vehicle distance is obtained by dividing the vehicle into a predetermined speed range such as km to 40 km. In addition, when the inter-vehicle distance that is clearly estimated to be abnormal, for example, when the inter-vehicle distance to the preceding vehicle is 20 m or more at a vehicle speed of 15 km, the average value is calculated excluding the numerical value.

Subsequently, the judgment control system 30 reads out the vehicle-to-vehicle distance history specific to the driver from the vehicle-to-vehicle distance correspondence map 22, and based on the vehicle-to-vehicle distance history, the average vehicle-to-vehicle distance Sa (basic vehicle-to-vehicle distance) and the above-mentioned steps. The average inter-vehicle distance Sd for each vehicle speed calculated in 104 is compared in each speed range to determine the psychological state of the driver (step 105).

In this control program, the average vehicle distance Sa read from the data management system 20 is multiplied by a coefficient K in the vehicle distance comparison.
The coefficient K is a numerical value that is changed in a timely manner in consideration of road conditions and the like. To give an example, the coefficient K has a small value in urban areas and a large value in suburbs. That is, in an urban area, there are usually many opportunities to travel with a shorter inter-vehicle distance, and in the speed comparison, for example, a small numerical value of about 0.95 is multiplied to give a wide range of determination accuracy.
On the other hand, in the suburbs, even if there is a lot of traffic, monotonous driving continues, and there is a strong tendency to be alert and vague.
The accuracy of psychological judgment is corrected in a strict direction by multiplying by a large value of about 1.

If the inter-vehicle distance acquired from the data management system 20 is less than the inter-vehicle distance acquired in accordance with the actual traveling, the psychological state during driving is disturbed and the disturbance such as frustration occurs. A determination is made (step 106), and this processing routine ends.

Regarding the output of the judgment result, this control program determines the disturbance of the psychological state by satisfying a predetermined condition. That is, a comprehensive determination is made in consideration of the number of speed ranges to be compared and the lower limit value of the inter-vehicle distance.

For example, when the input speed is 0 km to 60 k
In the case of m, there are 6 speed ranges to be compared (0
km-10km, 10km-20km, ... 50k
m-60 km), and if it is less than the average inter-vehicle distance Sa in at least three speed ranges, it is determined that the psychological state is disturbed. In addition, if even one of them exceeds the allowable inter-vehicle distance in the speed range to be compared, it is determined that the psychological state is suddenly disturbed.

Here, the allowable inter-vehicle distance is, for example,
In the inter-vehicle distance read from the data management system 20, 0.6
It is calculated by multiplying a sufficiently small numerical value, for example, in the speed range of 30 km to 40 km,
When a value that cannot be assumed in normal driving is input, such as when the inter-vehicle distance becomes 9 m at that time, it is determined that the psychological state is disturbed without waiting for comparison in each speed range. The comparison method introduced here is merely an example, and the detailed control thereof can be changed as desired.

When a negative determination is made in step 105, it is determined that the driving is in a normal state (step 107), and then the inter-vehicle distances in the respective speed ranges acquired in the process of the control program are calculated. It is incorporated into the database 22 (step 108), and this processing routine is ended.

The reason why the inter-vehicle distance at the time of actual traveling is incorporated in the inter-vehicle history in step 108 is that the data acquired in this control program is in the above-mentioned step 105.
This is because it was determined that driving was normal. That is, even if the inter-vehicle distance leads to the disturbance of the psychological state in each speed range, if it is determined by this control program that the driving is in the normal state, the inter-vehicle distance is the inter-vehicle distance in the normal state. You can say that.

For example, even if the vehicle-to-vehicle distance from 10 km to 20 km exceeds the past vehicle-to-vehicle distance, it is a value that is output as the driver's starting skill improves. Presumed not to. Therefore, if the inter-vehicle distance obtained in actual traveling is incorporated into the inter-vehicle history unique to the driver in consideration of such conditions, the accuracy of the next psychological determination can be further improved.

As described above, according to the psychological determination device 1 according to the embodiment of the present invention, the vehicle speed during driving is detected, and the actual inter-vehicle distance secured between the vehicle and another vehicle during the driving is calculated as described above. It is input by associating with the vehicle speed detected in step S1, and the basic inter-vehicle distance, which is the basis for psychological determination, is read out in correspondence with the vehicle speed detected above, and by comparing them, consistency is ensured in the comparison of inter-vehicle distances. . Thus, the driver's psychological state can be accurately determined.

The flow of the psychological determination program described above is merely an example, and the details thereof can be changed as necessary. For example, in the above-described psychological determination program, the driver is specified and the psychological determination is performed based on the inter-vehicle history unique to the driver, but the driver identification is not always a step required in this control program. . That is, the inter-vehicle distance that can ensure driving safety can be predicted to some extent based on various preliminary experiments.
Therefore, if the estimated inter-vehicle distance is used as the basic inter-vehicle distance, the psychological state of the driver can be generally understood.

<Second Embodiment> Next, a driving support device 1A according to the present invention will be described. In this embodiment, the output system 40 is added to the psychological determination device 1 to configure the system. Therefore, in the following description,
Only the output system that is the main part of the driving support device 1A will be described.

The output system 40 corresponds to the output means according to the present invention, and comprises an output signal processing circuit 41 for reading the output signal of the judgment control system 30 and a vehicle-mounted navigation device 17. The determination result output by the psychological determination program is used as the navigation device 17
It is output to the driver side through the display 17a, the voice guidance speaker 17b, and the like, and is recognized by the driver. As the output method, that is, the image display method and the voice guidance method, it is desirable to use an output (expression) as if the vehicle were willing.

The device configuration of the output system is, of course, not limited to the above-mentioned example. For example, when an air conditioner (in-vehicle air conditioner) and an audio device are provided and the psychological disorder is detected by the psychological determination program, It is also possible to blow cool air to the driver by operating the air conditioner, or to play a song by operating the audio device.If you let the driver recognize the judgment result in this way, It is possible to maintain safe driving.

[0053]

As described above, according to the present invention, the psychological state of the driver can be accurately determined, and by making the driver recognize the determination result, the driver can maintain safe driving. . As a result, it is possible to prevent an accident due to the disorder of the psychological state. Further, since it can be realized by using a device mounted on an existing vehicle such as a vehicle speed sensor, a distance measuring sensor, a navigation device, etc., it is advantageous in terms of versatility to the existing vehicle and cost.

[Brief description of drawings]

FIG. 1 is a system schematic diagram of a psychological determination device and a driving support device according to the present embodiment.

FIG. 2 is a diagram showing an inter-vehicle distance correspondence map prepared in the data management system according to the present embodiment.

FIG. 3 is a diagram showing a state in which a psychological determination device and a driving support device according to the present embodiment are mounted on a vehicle.

FIG. 4 is a flowchart showing the flow of a psychological determination program according to this embodiment.

FIG. 5 is a diagram for explaining step 102 in the flowchart of FIG.

[Explanation of symbols]

1 Psychological judgment device 1A Driving support device 10 input system 11 accelerator pedal 12 brake pedal 15 vehicle speed sensor 16 Input signal processing circuit 17 Navigation device 17a display 17b Voice guidance speaker 18 Driver identification device 19 Distance measuring sensor (laser radar) 20 Data management system 21 Recording device 30 Judgment control system 31 Psychological judgment circuit 40 output system 41 Output signal processing circuit

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuya Sasaki             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Naoki Aoshima             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Mikio Kamata             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Ippei Hanabata             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Satoshi Shinada             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Katsuhiko Nunokawa             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Hiroaki Okajima             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation F term (reference) 3D037 FA10 FB09                 5H180 AA01 CC03 CC12 CC14 FF05                       FF12 FF13 LL01 LL02 LL04                       LL07 LL08 LL09 LL20

Claims (10)

[Claims] 1. A driving psychological determination device for determining a psychological state of a driver based on an inter-vehicle distance, which is secured between a vehicle speed detecting means for detecting a vehicle speed during driving and another vehicle during the driving. An actual vehicle-to-vehicle distance input means for inputting the actual vehicle-to-vehicle distance in association with the vehicle speed detected above, and a basic vehicle-to-vehicle distance read out from the vehicle-to-vehicle distance recording means corresponding to the vehicle speed detected above to the basic vehicle-to-vehicle distance that serves as a psychological judgment reference Distance reading means, a psychological determination means for comparing the actual inter-vehicle distance input in the above and the basic inter-vehicle distance read in above, and determining the psychological state of the driver based on the difference in the inter-vehicle distance, A driving psychological determination device comprising: 2. The basic inter-vehicle distance read out in the above is an inter-vehicle distance for ensuring safe driving of the driver, and in the psychological determination means, the actual inter-vehicle distance input is the basic inter-vehicle distance. The driving psychological determination device according to claim 1, wherein when it is below the threshold, it is determined that the psychological state is disturbed. 3. A driver specifying means for specifying a driver, and an inter-vehicle history registering means for registering an actual inter-vehicle distance input in the driving of the driver as an inter-vehicle history unique to the driver, The driving psychology determination device according to claim 1 or 2, wherein the basic inter-vehicle distance read in step 1 is read out from the inter-vehicle history unique to the driver. 4. Road condition input means for inputting road conditions,
Further provided, the psychological determination means determines the psychological state of the driver on the condition that the road condition input in the above is a road condition that is easily congested. The driving psychological determination device described in. 5. A driving psychological determination method for determining a psychological state of a driver based on an inter-vehicle distance, which comprises a step of detecting a vehicle speed during driving, and an actual inter-vehicle distance secured between another vehicle during the driving. A step of inputting a distance in association with the vehicle speed detected above, a step of reading out a basic inter-vehicle distance that serves as a reference for psychological determination in correspondence with the vehicle speed detected above, and an actual inter-vehicle distance input above, Comparing the basic inter-vehicle distance read out above and determining the psychological state of the driver based on the difference in the inter-vehicle distance. 6. The basic inter-vehicle distance read out in the above is an inter-vehicle distance for ensuring a safe driving of the driver, and in the step of judging the psychological state, the actual inter-vehicle distance input is the basic inter-vehicle distance. The driving psychological determination method according to claim 5, wherein it is determined that the psychological state is disturbed when the vehicle distance is shorter than the inter-vehicle distance. 7. The method further includes: a step of identifying a driver; and a step of registering an actual vehicle-to-vehicle distance input during driving by the driver as a vehicle-to-vehicle distance unique to the driver, wherein the basic vehicle-to-vehicle distance read out is 7. The driving psychology determination method according to claim 5, wherein the vehicle psychology determination method is read out from the inter-vehicle history unique to the driver. 8. The method further comprises a step of inputting a road condition, wherein in the step of determining the psychological condition, the road condition input in the above is a road condition that is easily congested.
The driving psychological determination method according to claim 5, wherein the psychological state of the driver is determined. 9. A driving support device for determining a psychological state of a driver based on an inter-vehicle distance and outputting the determination result to the driver, and a vehicle speed detecting means for detecting a vehicle speed during driving, and the driving thereof. In the actual vehicle-to-vehicle distance that is secured between the vehicle and the other vehicle, the actual vehicle-to-vehicle distance input means for inputting the actual vehicle-to-vehicle distance in correspondence with the vehicle speed detected above, The basic inter-vehicle distance reading means correspondingly reading from the inter-vehicle distance recording means, the actual inter-vehicle distance input in the above, and the basic inter-vehicle distance read in in the above are compared, and the driver is based on the difference in the inter-vehicle distance. A driving support device, comprising: a psychological determination means for determining the psychological state of 1. and an output device for outputting the determination result to the driver. 10. A driving support method for determining a psychological state of a driver based on an inter-vehicle distance and outputting a result of the determination to the driver, which detects a vehicle speed at the time of driving to drive another vehicle. The actual inter-vehicle distance secured between and is input in association with the vehicle speed detected above, and the basic inter-vehicle distance that serves as a reference for psychological determination is read out in association with the vehicle speed detected above. A feature is that the actual inter-vehicle distance is compared with the basic inter-vehicle distance read out above, the psychological state of the driver is determined based on the difference in the inter-vehicle distance, and the determination result is output to the driver. Driving support method.