JP2003048448A - Driving psychology deciding method and device, and driving supporting method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving supporting technique for maintaining a safety driving by accurately deciding a psychological state of a driver and making the driver recognize the decision result. SOLUTION: This deciding device is provided with an input system 10, a data control system 20, a decision control system 30 and an output system 40. In the input system 10, a traveling route is specified, and an actual operation performed at the time of an actual traveling on the traveling route is inputted into the decision control system 30. In the decision control system 30, a basic operation required on the specified traveling route is read from the data control system 20, the basic operation and the inputted actual operation are compared, and the psychological state of the driver is decided based on a difference of the driving operation. The decision result is 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 an operating condition warning device disclosed in Japanese Patent Laid-Open No. 7-257222. According to the driving state warning device disclosed in the publication, the driver's psychological state is grasped based on the driving pattern peculiar to the driver, and when the psychological state seems to be disturbed, a voice message to that effect is given. By alerting the driver through, accidents due to unsafe driving are prevented.

More specifically, the driving pattern peculiar to the driver is recorded in the normal psychological state, and when the psychological state of the driver should be judged, the normal driving pattern and the operation currently performed by the driver. Disturbance of the psychological state is determined by comparing with. That is, if the currently performed operation (driving pattern) is different from the normal driving pattern, it is determined that the psychological state during driving is disturbed for some reason.

[0004]

However, the inventors of the present invention have noticed that the normal operation pattern as a comparison target cannot always be an accurate criterion. That is, it has been found that the driving pattern in normal times varies greatly depending on the driving situation. For example, if you compare the traveling route you are traveling for the first time and the traveling route you are familiar with,
It is assumed that careful driving is performed in the first driving route, and even if the operation content is different from the normal operation pattern, the accident rate associated with the operation content is sufficiently low. Further, comparing the time of occurrence of traffic congestion with the time after traffic congestion is resolved, even if the vehicle is driven with the same attention, the driving patterns naturally differ.

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.

[0006]

In order to solve the above technical problems, the present invention has the following configuration. That is,
A driving psychological determination method for determining the psychological state based on information from a driver, the step of identifying a traveling route, the step of reading out a basic operation required on the traveling route identified above, the traveling route Based on the difference in the driving operation, the step of inputting the actual operation of the driver performed at the time of actual traveling on the above, the basic operation read above, and the actual operation input above are compared. Determining the psychological state of the driver.

According to the driving psychology determination method configured as described above, the accuracy of the determination of the psychological state is improved by specifying the traveling route. That is, by comparing the basic operation required on the travel route specified above and the actual operation performed on the travel route, the consistency of the comparison target (operation content), which is not always the same as before, is secured, Thus, the driver's psychological state can be accurately determined.

The basic operation which is the criterion here is based on the contents of past operations performed by the driver when passing through the traveling route and the contents of operations required for traveling along the traveling route. It has been decided. In addition, the content can be defined in both the operation content that can ensure safe driving and the operation content that leads to unsafe driving, and if you specify the basic operation under the condition that you can secure safe driving, you can be frustrated and irritated. It can detect disturbances of psychological state such as fatigue, anxiety. On the contrary, if the basic operation is specified by the operation content that leads to unsafe driving, seriousness, concentration, attention, and the like for driving can be evaluated.

Regarding the basic operation for reading out, the basic operation for reading out is a driving operation for allowing the vehicle to safely pass through the traveling route, and the basic operation is different from the actual operation input above. When this is done, it may be determined that the psychological state is disturbed.

That is, in this configuration, since the basic operation is specified under the condition that the safe running can be secured, the psychological judgment step can output the disturbance of the psychological state as the judgment result. In addition, the driving operation for safely passing the travel route is specified by the operation content during safe driving performed by an unspecified number of drivers, and the operation content corresponding to the driving skill of the driver. Is desirable.

Further, the present configuration further includes a step of identifying the driver and a step of registering the actual operation input above as an operation history peculiar to the driver, and the basic operation read out above is You may make it read from the operation history peculiar to a driver.

In this configuration, the driver is specified, and the basic operation to be compared is specified based on the operation history peculiar to the driver, thereby improving the accuracy of psychological judgment.
That is, by learning the operation content performed in the past and setting the basic operation based on the learned content, the psychological determination can be performed by comparing the driver's specific operation content with the driver's specific operational content. Therefore, the accuracy of the operation comparison is improved, which can contribute to the further improvement of the determination accuracy.

Further, in the present configuration, the method further includes the step of identifying the driver and the step of registering the travel route traveled during driving as the route history peculiar to the driver. You may specify from the route history peculiar to a driver.

In this configuration, the driver is identified, and the traveling route for which the psychological determination is to be performed is identified from the route (route history) that the driver has traveled in the past, whereby the psychological determination for the driver is performed. The accuracy of is improved. In general,
Since the operation content of the driver becomes stable as the number of times of travel increases, if the travel route is specified from the travel history unique to the driver, the comparison accuracy at the time of psychological determination can be further improved.

The actual operation input in the above may include a plurality of operation elements. Further, the plurality of operation elements may include at least acceleration, deceleration, or turning operation. Here, the operation element is an item that is output along with the actual operation, and is not only the item related to the operation such as acceleration, deceleration, and turning operation described above, but also the timing at which the operation (operation) is performed, and It is a concept that also includes vehicle speed, inter-vehicle distance, travel time, etc. that are output due to operation.

In order to solve the above technical problems, the present invention may have the following device configuration. That is, a driving psychological determination device for determining the psychological state based on information from the driver, the route identification means for identifying the traveling route, and the basic operation required on the traveling route specified above, the basic operation The basic operation reading means for reading from the recording means, the actual operation input means for inputting the actual operation of the driver performed during the actual traveling on the traveling route, the basic operation read out by the above, and the basic operation read by the above Compared with the actual operation,
Psychological determination means for determining the psychological state of the driver based on the difference in the driving operation.

Here, the route specifying means may be any device configuration capable of specifying the route that has been traveled, for example, specifying a traveling route based on the output of the navigation device, preparing a traveling route specifying button, etc. A device configuration or the like for identifying the travel route can be exemplified. The actual operation input means is
A sensor that detects the operation amount of an accelerator pedal, a brake pedal, a steering wheel, etc. that also serves as an interface between the vehicle and the driver, a behavior sensor that detects the traveling behavior when the vehicle is traveling, and an electronic control unit that manages the outputs of various sensors ( It is desirable to configure with ECU).

Regarding the basic operation for reading out, the basic operation for reading out is a driving operation for allowing the vehicle to safely pass through the traveling route, and the basic operation is different from the actual operation input above. When this is done, it may be determined that the psychological state is disturbed.

Here, the driving operation for allowing the vehicle to safely pass through the traveling route means the operation content during safe traveling performed by an unspecified number of drivers, and the operation content corresponding to the driver's skill. It is desirable to specify them in advance, and their operation contents can be estimated based on various preliminary experiments.

Further, the present device configuration further comprises driver specifying means for specifying a driver and operation registration means for registering the actual operation input above as an operation history peculiar to the driver. It is desirable to read the basic operation to be read from the operation history peculiar to the driver.

Further, the present device configuration further comprises a driver identifying means for identifying a driver and a route registering means for registering a traveling route traveled during driving as a route history peculiar to the driver. The specified travel route may be specified from the route history unique to the driver.

The actual operation input above may include a plurality of operation elements. Further, the plurality of operation elements may include at least acceleration, deceleration, or turning operation. Here, the operation element is an item that is output along with the actual operation, and is not only the item related to the operation such as acceleration, deceleration, and turning operation described above, but also the timing at which the operation (operation) is performed, and It is a concept that also includes vehicle speed, inter-vehicle distance, travel time, etc. that are output due to operation.

Further, in the driving support technology of the present invention, the following method may be adopted in order to solve the above technical problems. That is, it is a driving assistance method that determines the psychological state of the driver based on information from the driver and outputs the determination result to the driver. The basic operation required by the above is read, the actual operation of the driver performed during the actual traveling on the travel route is input, and the basic operation read out above is compared with the actual operation input above. The driver's psychological state is determined based on the difference in the driving operation, and the determination result is output to the driver.

In such a driving support method, the psychological state of the driver is determined by comparing the basic operation required on the traveling route specified above with the actual operation performed on the traveling route. By outputting the judgment result to the driver side,
Let the driver maintain safe driving. Note that examples of the output method include output via images, output via sound, and output via various devices provided in the vehicle. Of course, the output illustrated here is merely an example, and the output is not particularly limited.

Further, in the driving support technology of the present invention, in order to solve the above technical problems, the following device configuration may be adopted. That is, a driving support device that determines the psychological state of the driver based on the information from the driver and outputs the determination result to the driver, and a route identifying means that identifies a traveling route, A basic operation reading means for reading the basic operation required on the travel route from the basic operation recording means, an actual operation input means for inputting the actual operation of the driver performed during the actual travel on the travel route, and The basic operation read out and the actual operation input above are compared, and a psychological determination means for determining the psychological state of the driver based on the difference in the driving operation, and the determination result for the driver Output means for outputting.

Here, the route specifying means may be any device configuration capable of specifying the route that has been traveled, for example, specifying a traveling route based on the output of the navigation device, a traveling route specifying button, etc. A device configuration or the like for identifying the travel route can be exemplified. The actual operation input means is
A sensor that detects the operation amount of an accelerator pedal, a brake pedal, a steering wheel, etc. that also serves as an interface between the vehicle and the driver, a behavior sensor that detects the traveling behavior when the vehicle is traveling, and an electronic control unit that manages the outputs of various sensors ( It is desirable to configure with ECU).

The output means may have any device configuration that allows the driver to recognize the output, for example, an image display device,
A navigation device provided with a voice output device or the like can be exemplified as a suitable example. Of course, the device shown here is merely an example, and the device configuration is not particularly limited as long as it is a device configuration provided with an output method 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 psychological state of the driver can be accurately determined, and the driver is made aware of the determination result, so that the driver can maintain safe driving.

[0029]

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 driving of a vehicle, and a data management system for recording and managing driver-specific data as a reference for psychological determination for each driver. 20 and a determination control system 30 that grasps 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 constitutes the actual operation input means according to the present invention, and as shown in FIG. 3, the operation amount of the accelerator pedal 11, the brake pedal 12, the steering wheel 13, etc., which also serves as the interface between the vehicle and the driver. Sensors 11a, 12a, 13a for detecting the movement of the vehicle, and behavior detection sensors 14, 15 for detecting the traveling behavior of the vehicle during traveling. When acceleration, deceleration, turning operation, or the like is performed during operation, the content of the operation is the accelerator stroke sensor 11
a, the brake stroke sensor 12a, the steering snake angle sensor 13a, the G sensor 14, the vehicle speed sensor 15 and the like, and after being converted into the operation amount by the input signal processing circuit 16, the determination control system 30 and the data management system 20. Is output.

The input system 10 further includes a navigation device 17 for specifying the current travel route, and a driver specifying device 18 for specifying the driver to be judged. The navigation device 17 specifies the current travel route by performing mutual communication with the artificial satellite, and
The current road condition (for example, traffic jam condition) is grasped based on information from (road information communication system) and the like, and the traveling conditions are input to the input signal processing circuit 16. That is, it constitutes the travel route specifying means in the present invention.

The driver specifying device 18 corresponds to the driver specifying means in the present invention, and specifies the driver from the waiting time until the ignition switch is operated after getting on the vehicle, the setting operation of the seat position, and the like. It is a device for.
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 is input to the input signal processing circuit 16, and the input signal processing circuit 16 adds a predetermined identification code determined for each driver to the outputs of various sensors and the output of the navigation device 17 to make a determination control system. 30 and the data management system 20. That is, the input system 10 acquires various data in association with the driver.

On the other hand, the data management system 20 that reads various data acquired by the input system 10 includes a RAM, a ROM, and an HD.
A recording device 21 such as a (hard disk) is used as a main component, and a database 22 for registering a driver-specific route history, a driver-specific operation history, etc. is developed on the recording device 21. ing. Incidentally, here, the recording device 2
1 can be configured as a single unit, but preferably, it is desirable to be configured using a learning function or the like which is one function of the navigation device 17. In this way, the data management system 20
Then, the basic operation registration means, the operation registration means, and the route registration means according to the present invention are configured.

The database 22 is used for the later psychological determination control, and as shown in FIG.
The identification code 23 determined for each driver is used as a column, and a route history 24, an operation history 25, a judgment reference value 26, and the like unique to the driver are written in an array corresponding to the identification code 23. The numerical values on the database 22 are updated based on various data read from the input system 10, and the latest data is used at the time of psychological judgment.

Here, the route history peculiar to the driver is an item for registering a route which has traveled several times in the past as a traveling route peculiar to the driver. It should be noted that referring to FIG. 2, for driver A, a commuting route from home to company A is set as a traveling route unique to the driver A, and for driver B, a commuting route from home to the university is set for driver B. It is registered as a unique travel route. In addition, in driver C, company A
The travel route from the company to the company B is registered as the travel route unique to the driver C.

The operation history is an item for registering the contents of the operation performed during the actual traveling on the traveling route and the traveling behavior during the operation. Note that, referring to FIG. 2, the traveling speed, the accelerator operation amount, the brake operation amount, the steering operation amount, the front / rear / left / right G, the required time, and the like belong to this operation history. Further, in FIG. 2, each item is written as an average value for the convenience of the psychological determination control, but of course, the maximum value, the minimum value, or the like may be registered. Also,
The items registered in the database 22 are not limited to the above-mentioned items, and may be changed as desired as long as they are data that can be acquired when the vehicle is running, such as an inter-vehicle distance and an elapsed time from acceleration to deceleration. It is possible.

Further, the judgment reference value is a numerical value which becomes a threshold value at the time of psychological judgment, and is a value set in consideration of the past judgment result, the number of times of travel, the travel route and the like. The numerical value setting will be described in detail later in the description of the psychological determination control. Further, in the following description, the determination reference value is referred to as “determination reference value Ct”.
Sometimes called.

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 compares various data output during traveling of the vehicle with data unique to the driver registered in the data management system 20. Therefore, the psychological state of the driver is determined.

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,
The identification code read out at the time of psychological determination is specified, and hereinafter, only the data unique to the driver corresponding to the identification code is output from the data management system 20.

Subsequently, based on the output from the navigation device 17, it is determined whether or not the travel route is a route on which psychological determination can be performed (step 102). That is, by determining whether or not the current traveling route belongs to the traveling route peculiar to the driver, accuracy in psychological determination is improved. The driving route peculiar to the driver is recognized by reading it from the route history of the data management system 20. Then, when it is determined that the vehicle belongs to the driving route peculiar to the driver, the process proceeds to step 103 to start the psychological determination. When the determination is negative, the control program is temporarily terminated.

FIG. 5 shows the relationship between the route history and the current traveling position. That is, when the driver to be judged is specified as the driver B, the psychological judgment is performed if the driver B to be judged is traveling at point X in FIG. If the vehicle is traveling at point Y in FIG. 5, the control program is temporarily terminated without performing psychological determination.

In the following step 103, various data are acquired from the input system 10 and the data management system 20 in order to start the psychological judgment. Further, later, the judgment value C to be compared with the judgment reference value Ct is set to the initial value C = 0.

The data acquired from the input system 10 is, of course, data (operation content) based on the actual operation on the traveling route specified above. In addition, data management system 2
The data acquired from 0 is data unique to the driver,
This corresponds to a so-called basic operation. Then, after the processing of step 103, the judgment control system 30 starts the psychological judgment. In addition,
The following steps including this step 103 are steps that can be performed not only when the vehicle is traveling but also after the vehicle is traveling.

To start the psychological judgment, the judgment control system 30 first makes a psychological judgment based on the vehicle speed (step 104). In this step, the psychological determination is performed by comparing the past traveling speed (operation history) acquired from the data management system 20 with the actual vehicle speed acquired from the input system 10. That is, the actual vehicle speed acquired by the input system 10 is
If it exceeds the past traveling speed, it is determined that the psychological state is disturbed.

When comparing vehicle speeds, the road conditions and the like are taken into consideration. That is, in control, the coefficient A based on the traffic jam information acquired by the navigation device 17 is used.
Is calculated, and the past traveling speed is multiplied by this coefficient A to ensure the accuracy of speed comparison. In other words, the coefficient A is updated in a timely manner according to the road conditions, and for example, it becomes a small value (for example, 0.6) when a traffic jam occurs and a large value (for example, 1.2) when the traffic jam is cleared. Set the reference past traveling speed to an appropriate value.

Then, when the disturbance of the psychological state is detected in this step 104, "1" is added to the judgment value C to update the initial value C = 0 to C = 1 (step 10).
5). If no disturbance of the psychological state is detected in step 104, the process proceeds to the next psychological determination without performing the addition process (step 105).

At the following step 106, a psychological judgment is made based on the accelerator operation amount. In this step, the past accelerator operation amount acquired from the data management system 20 and the input system 1
Psychological judgment is performed by comparing the actual accelerator operation amount acquired from 0. That is, if the actual accelerator operation amount acquired by the input system 10 exceeds the past accelerator operation amount (operation history), it is determined that the psychological state is disturbed.

Also here, the past accelerator operation amount is multiplied by a coefficient B set in consideration of road conditions and the like for comparison. That is, when a traffic jam occurs, the frequency of starting (accelerating) increases, so the amount of accelerator operation naturally increases. Therefore, the determination control system 30 sets the coefficient B to a large numerical value to correct the past accelerator operation amount that is the determination reference. On the contrary, when the road is flowing, the frequency of starting (accelerating) is reduced, so the coefficient B is set to a small value to ensure the accuracy of comparison.

Then, when the disturbance of the psychological state is detected in this step 106, "1" is added to the judgment value C (C = C + 1) to update the judgment value C (step 10).
7). If the disturbance of the psychological state is not detected in step 106, the process proceeds to the next psychological determination without performing the addition process (step 107).

At the following step 108, a psychological judgment is made based on the brake operation amount. In this step, the past brake operation amount acquired from the data management system 20 and the input system 1
Psychological judgment is performed by comparing the actual brake operation amount acquired from 0. That is, if the actual brake operation amount acquired by the input system 10 exceeds the past brake operation amount (operation history), it is determined that the psychological state is disturbed.

Also in this case, the past brake operation amount is multiplied by the coefficient C set in consideration of road conditions and the like, and the result is compared. That is, when a traffic jam occurs, the frequency of stopping increases, and the amount of brake operation naturally increases. Therefore, the judgment control system 30 sets the coefficient C to a large numerical value to ensure the accuracy of comparison. On the contrary, when the road is flowing, the frequency of stop is reduced, so the coefficient C is set to a small value.

At the subsequent step 110, a psychological judgment is made based on the steering operation amount. In this step, the past steering operation amount acquired from the data management system 20,
The psychological determination is performed by comparing the actual steering operation amount acquired from the input system 10. That is, the input system 10
If the actual steering operation amount acquired in step (1) exceeds the past steering operation amount (operation history), it is determined that the psychological state is disturbed.

Also here, in the comparison of the steering operation amounts, the coefficient D set in consideration of road conditions and the like.
Multiply and compare. That is, when low-speed traveling is required such as when a traffic jam occurs, the frequency of lane change and the steering operation amount increase, so the steering operation amount naturally increases. Therefore, the judgment control system 30 sets the coefficient D to a large numerical value to ensure the accuracy of comparison. On the contrary, when the road is flowing, the coefficient D is set to a small value because the lane change frequency and the steering operation amount decrease.

Then, when the disturbance of the psychological state is detected in this step 110, "1" is added to the judgment value C (C = C + 1), and the judgment value C is updated (step 11).
1). Further, when the disorder of the psychological state is not detected in step 110, the process proceeds to the next psychological determination without performing the addition process (step 111).

In the following step 112, a psychological judgment is made based on the running behavior of the vehicle. In this step, the past driving behavior (front / rear / left / right G) acquired from the data management system 20
And the actual traveling behavior acquired from the input system 10 are compared to make a psychological determination. That is, the actual traveling behavior acquired by the input system 10 is the past traveling behavior (operation history).
If it exceeds, it is determined that the psychological state is disturbed.

Also in this case, the coefficient E set in consideration of road conditions is multiplied and compared.
That is, when a traffic jam occurs, the frequency of starting, stopping, changing lanes, etc. increases, so the driving behavior naturally increases. Therefore, the judgment control system 30 sets the coefficient E to a large numerical value to ensure the accuracy of comparison. On the contrary, when the road is flowing, the frequency of starting, stopping, changing diagonal lines, etc. decreases, so the coefficient E
To a small value.

Then, when the disturbance of the psychological state is detected in this step 112, "1" is added to the judgment value C (C = C + 1) and the judgment value C is updated (step 11).
3). If no disturbance of the psychological state is detected in step 112, the process proceeds to the next psychological determination without performing the addition process (step 113).

At the following step 114, a psychological judgment is made based on the running time (required time). In this step, the past travel time (required time) acquired from the data management system 20
And the actual travel time acquired from the input system 10 are compared to make a psychological determination. That is, the actual travel time acquired by the input system 10 is the past travel time (operation history).
If less than, it is determined that the psychological state is disturbed.

Also in this case, the coefficient F set in consideration of road conditions is multiplied and compared.
That is, when traffic congestion occurs, the traveling time increases, so the coefficient F is set to a large value to ensure the accuracy of the comparison. On the contrary, when the road is flowing, the traveling time is reduced, so the coefficient F is set to a small value.

Then, when the disturbance of the psychological state is detected in this step 114, "1" is added to the judgment value C (C = C + 1) and the judgment value C is updated (step 11).
5). If no disturbance of the psychological state is detected in step 114, the process proceeds to the next step 116 without performing the addition process (step 115).

In the following step 116, a final psychological judgment is made based on the judgment value C updated in each of the above steps. In this step, the psychological judgment is performed by comparing the judgment reference value Ct peculiar to the driver acquired from the data management system 20 and the judgment value C added in each step. That is, if the determination value C obtained by the addition processing exceeds the determination reference value Ct, it is determined that the psychological state during driving is disturbed (step 117), and this processing routine is ended.

If the judgment value C is below the judgment reference value Ct, it is judged that the operation is in a normal state (step 11).
8) After that, various data acquired in the processing process of this control program is incorporated into the database 22 (step 119), and this processing routine is ended.

The reason why various data are incorporated in step 119 is that it is determined that the data acquired by this control program corresponds to the traveling data in normal times in the processing of step 116. That is, even if the operation contents lead to the disturbance of the psychological state in each step, if it is determined in this control program that the operation is in the normal state, those operation contents are in the normal state. You can say that.

For example, even if the amount of brake operation exceeds the amount of operation in the past, it is an operation associated with risk avoidance, and is not an operation caused by hurry, irritability, anxiety, or the like. Further, in terms of vehicle speed, even if the vehicle speed exceeds the past vehicle speed, it leads to smooth driving, and is not an operation that is frustrating or frustrating. Therefore, if the past operation history is updated based on these operation contents, the accuracy of the next psychological determination can be further improved.

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-mentioned processing routine, the psychological state of the driver is judged based on the judgment items such as vehicle speed, accelerator operation amount, brake operation amount, steering operation amount, traveling behavior, traveling time, etc. It is not necessary, and the item can be changed as appropriate in consideration of the traveling situation and the like.

Furthermore, a psychological judgment item based on the waiting time from the acceleration to the deceleration or a psychological judgment item based on the inter-vehicle distance may be added. That is, the determination item of the psychological state may be any operation element that can be acquired according to the actual operation of the driver, and not only the above-mentioned items related to the operation such as acceleration, deceleration, and turning, but also the operation (operation) is performed. It may be set in consideration of the timing of turning on and the positional relationship with other vehicles.

In the above program, addition processing is performed for each step, and the psychological state of the driver is determined by the total number of determination values calculated in the addition processing. If a permissible value is set and an input exceeding the maximum permissible value is made, it may be determined that the psychological state is disturbed without performing step 116. With this configuration, it is possible to cope with a sudden disturbance of the psychological state of the driver.

Further, the judgment value C output by the execution of this processing routine may be incorporated into the judgment reference value later. That is, when the judgment value C is lower than the judgment reference value Ct peculiar to the driver, the judgment reference value is falsified based on the judgment value and applied to the later psychological judgment.

As an example, assuming that the judgment value calculated in the addition processing is C = 3 and the judgment reference value applied in this processing is C = 4, the psychological judgment for the next time is made. Then, the psychological determination is performed based on the determination reference value falsified to C = 3. In other words, the criteria for psychological determination become stricter each time the psychological determination is repeated, so that it is possible to detect the disturbance of the psychological state caused by getting used to it or being alert.

Further, although the judgment reference value Ct is processed as a constant in the above, Ct may be corrected in consideration of road conditions and the like as in the comparison processing in each step described above. As an example, when a traffic jam occurs, it may be forced to run unexpectedly. In this case, the correction value “1” is added to the judgment reference value Ct to give a wide range of judgment accuracy. deal with. Conversely, when the road is flowing, the criterion value Ct can be negatively corrected to raise the threshold value.

Further, in the above-mentioned psychological judgment program,
Although the driver is specified and the psychological determination is performed based on various data unique to the driver, the driver is not necessarily specified in the driving support technology of the present invention.
That is, if the travel route is specified, the operation required on the travel route can be predicted to some extent based on various preliminary experiments, and if the predicted operation content and the driver's actual operation are compared, You can generally understand the disorder of the state.

The predicted operation content may be recorded in the recording device 21 or the like, or may be read from the outside of the vehicle using the navigation device 17 or the like. The recording method is arbitrary. Also,
The operation content may be predicted based on the data of the driver who has driven the vehicle without performing various preliminary experiments.

As described above, according to the psychological determination apparatus 1 according to the embodiment of the present invention, the traveling route is specified, the basic operation required on the specified traveling route is read, and further, the basic operation on the traveling route is performed. By inputting the actual operation of the driver performed during actual driving and comparing the basic operation with the actual operation, the consistency of the comparison target (operation content), which was not always the same as before, is secured, and the driver's psychology The state can be accurately determined.

<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 via the display 17a, the voice guidance speaker 17b, etc., and the driver is made to recognize the determination result. 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.

Further, the device configuration of the output system is not limited to the above example, of course, for example, an air conditioner (in-vehicle air conditioner) and an audio device are provided, and when a 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 the driver is made to recognize the judgment result in this way, it is safe for the driver. You can keep driving.

[0080]

As described above, according to the present invention, the driver's psychological state can be accurately determined, and the driver can be made aware of the determination result, so that the driver can maintain safe driving. . As a result, it is possible to prevent an accident due to the disorder of the psychological state.

[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 for explaining a database developed 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 11a Accelerator stroke sensor 12 brake pedal 12a Brake stroke sensor 13 Steering 13a Steering angle sensor 14 Behavior detection sensor (G sensor) 15 vehicle speed sensor 16 Input signal processing circuit 16 17 Navigation device 17a display 17b Voice guidance speaker 18 Driver identification device 20 Data management system 21 Recording device 22 Database 23 identification code 24 Route history 25 Operation history 26 Judgment standard value 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 FA01

Claims (14)

[Claims] 1. A driving psychological determination method for determining a psychological state of a driver based on information from a driver, the step of identifying a traveling route, and the step of reading out a basic operation required on the identified traveling route. And a step of inputting a driver's actual operation performed during actual traveling on the traveling route, comparing the basic operation read out in the above with the actual operation input in the above, and performing the operation A driving psychological determination method comprising: a step of determining a psychological state of a driver based on a difference in operation. 2. The basic operation read out in the above is a driving operation for safely passing the traveling route, and when the basic operation and the actual operation input in the above are different, the psychological state The driving psychological determination method according to claim 1, wherein the method is determined to be disorder. 3. The method further includes the step of identifying a driver and the step of registering the actual operation input above as an operation history unique to the driver, wherein the basic operation read out above is specific to the driver. 3. The information is read out from the operation history.
The driving psychological determination method described in. 4. The method further includes the step of identifying a driver and the step of registering the travel route traveled during driving as a route history peculiar to the driver. The driving psychological determination method according to claim 1, wherein the method is specified from the route history. 5. The driving psychological determination method according to claim 1, wherein the actual operation input in the above includes a plurality of operation elements. 6. The plurality of operating elements are at least acceleration,
The driving psychological determination method according to claim 5, wherein the method is a deceleration or turning operation. 7. A driving psychological determination device for determining a psychological state of a driver based on information from a driver, the route identifying means for identifying a traveling route, and a basic operation required on the traveling route identified above. A basic operation reading means for reading from the basic operation recording means, an actual operation input means for inputting an actual operation of a driver performed during actual traveling on the travel route, the basic operation read out above, And a psychological determination unit that determines the psychological state of the driver based on the difference in the driving operation, by comparing the actual operation input in. 8. The basic operation read out in the above is a driving operation for allowing the vehicle to safely pass through the travel route, and when the basic operation and the actual operation input in the above are different, a psychological state The driving psychological determination device according to claim 7, wherein the driving psychological determination device determines that the driving disorder. 9. A driver specifying unit for specifying a driver, and an operation registering unit for registering the actual operation input in the above as an operation history peculiar to the driver. 9. The operation history is read out from the operation history peculiar to the driver.
The driving psychological determination device described in. 10. A driver specifying unit for specifying a driver, and a route registering unit for registering a travel route traveled during driving as a route history peculiar to the driver, wherein the travel route specified above is provided. The driving psychological determination device according to any one of claims 7 to 9, wherein the driving psychological determination device is specified from a route history unique to the driver. 11. The driving psychological determination device according to claim 7, wherein the actual operation input in the above includes a plurality of operation elements. 12. The driving psychological determination device according to claim 11, wherein the plurality of operation elements are at least acceleration, deceleration, or turning operation. 13. A driving support method for determining a psychological state of a driver based on information from the driver, and outputting the determination result to the driver, wherein a travel route is specified, and the above is specified. The basic operation required on the travel route is read, the actual operation of the driver performed during the actual travel on the travel route is input, and the basic operation read out above and the actual operation input above are input. In comparison, a driving support method characterized by determining the psychological state of the driver based on the difference in the driving operation and outputting the determination result to the driver. 14. A driving support device for determining a psychological state of a driver based on information from the driver and outputting the determination result to the driver, and route specifying means for specifying a travel route, Basic operation reading means for reading out the basic operation required on the travel route specified above from the basic operation recording means, and actual operation input means for inputting the actual operation of the driver performed during the actual travel on the travel route. , A psychological determination unit that determines the psychological state of the driver based on the difference in the driving operation by comparing the basic operation read in the above with the actual operation input in the above, and the determination result And an output unit for outputting to the driving assistance device.