JP2003118425A - Vehicle control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle control system controlling a vehicle suited to the driving technique and the driving preference of a driver. SOLUTION: This vehicle control system rewritably records driver information such as the driving technique and the driving preference of the driver in an IC card 72 also used as a driver's license beforehand. When the driver starts driving, the driver information is read from the IC card 72 and the vehicle is controlled based thereon. Therefore, for example, for a driver with a low driving technique, this system controls the driving for the safety-oriented side so as to prevent a traffic accident beforehand caused by the immature driving technique. For the driver with high driving technique, this system controls the driving suited to the driving preference of the driver so as to satisfy the feeling of the driver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle control system for performing vehicle control suitable for an individual driver according to the driving history of the driver.

[0002]

2. Description of the Related Art Conventionally, a technique for automatically controlling a vehicle in accordance with a driver's driving skill, driving history, or driving preference in order to ensure the safety of the driver and also to satisfy the driver's feeling. Is not well known.

Under such circumstances, for example, Japanese Patent Laid-Open No. 11-3535.
In Japanese Patent Laid-Open No. 98, driver information such as a driver's driving skill and driving preference is stored in a portable IC card or the like, and the reading device on the vehicle side reads this information during driving to detect other moving objects. A technique has been proposed for issuing an alarm at an appropriate timing suitable for the driver when the driver does.

According to such a technique, when the vehicle tries to turn right or left carelessly even though the oncoming vehicle is approaching, it is appropriate according to the driving skill of the driver, the vehicle performance, or the surrounding environment such as the weather. The alarm is issued at various times. Therefore, it is less likely that the driver will be lost in the driving operation due to the timing of the alarm. Further, since the driver's driving preference is added, the driver's feeling is not greatly deviated, and the alarm is less annoying.

[0005]

However, in such a technique, the driver information such as the driving skill and driving preference of the driver is used only for the alarm control of the vehicle. Therefore, for example, from the viewpoint of the inter-vehicle control (ACC), even if only the alarm matches the driver's preference in this way, as long as the control of the vehicle acceleration, deceleration, inter-vehicle distance, etc. does not match the driver's preference. , The driver will feel uncomfortable. Further, even if the alarm is issued at an appropriate timing, the driver's manual driving is entrusted thereafter, so that safe driving cannot always be expected.

Therefore, in order to solve such a problem, it is an object of the present invention to provide a vehicle control system which controls a vehicle according to the driving history and the driving preference of the driver according to the driving history of the driver. To do.

[0007]

In view of the above problems, in the vehicle control system according to the first aspect of the present invention, in order to control the traveling of the vehicle preset according to the driver information, the storage means has a plurality of driver information. A plurality of types of vehicle control information preset for each of the above are stored in association with each other.

The term "driver information" as used herein means the information held by the driver in order to realize the traveling control of the vehicle suitable for the driver. For example, the driving history of the driver (the date when the driver's license was acquired). , Age, gender, residential area,
The driving skill (history of traffic law violation, history of traffic accident), driving preference, or the like is applicable. A specific method for obtaining these pieces of information will be described in detail later, but for example, driving history, age, sex,
For residential areas, etc., it is conceivable to read the information written on the driver's license by some means or obtain it from the police database that manages the driver's license data. The driving skill can be obtained by obtaining data such as a traffic law violation record and a traffic accident record from the police database. Further, the driving preference can be acquired by recording the driving history of the driver and grasping the tendency thereof.

The "vehicle control information" means control information used when actually controlling the traveling of the vehicle based on the driver information, and various types of traveling such as road type, traveling area, weather, etc. Control information such as traveling speed, acceleration, and deceleration according to the environment is applicable. Therefore, the vehicle control information has different set values depending on the driver information.

That is, the present system assumes a case where a plurality of drivers can drive a certain vehicle, and even if the same vehicle is used, different driving controls can be performed depending on different drivers. The storage means respectively stores the vehicle control information corresponding to each of the driver information owned by each of the plurality of drivers. In addition, each driver owns at least a portable recording medium in which the identification information of itself is recorded in advance in order to use the present system.

In controlling the vehicle, the reading means first reads the identification information of the driver (owner of the recording medium). Then, the extraction unit extracts the corresponding vehicle control information from the storage unit based on the driver information corresponding to the identification information, and the control unit performs the vehicle traveling control based on the vehicle control information extracted at this time. .

According to this structure, since the mode of vehicle driving control can be changed for each individual driver specified by the identification information, the driving control suitable for each driver can be automatically performed. it can. Specific examples of the traveling control of the vehicle include various traveling controls such as normal traveling control and inter-vehicle control (ACC). The former driving control is particularly effective for forcibly driving safely when the driver has a history of traffic regulations violations or a history of traffic accidents. Specifically, for example, based on the traffic law violation history as driver information, the upper limit speed of the vehicle is forcibly set for the driver with a lot of speed violation history,
By preventing the driver from accelerating beyond a certain speed even when the driver depresses the accelerator, violation of the legal speed by the driver can be suppressed. In this case, the legal speed of the road can be acquired by searching the legal speed of the road currently running by, for example, specifying the vehicle traveling position by the navigation device.

Further, the present system functions particularly effectively when the vehicle is automatically controlled to travel like the latter inter-vehicle distance control. For example, in the vehicle control system according to the second aspect, the control means includes a headway distance control means that executes the headway distance control based on the vehicle control information based on the preceding vehicle traveling in front of the own vehicle. Then, the vehicle distance control means performs the vehicle distance control based on the vehicle distance control parameter as the vehicle control information extracted by the extracting means.

In this case, if the inter-vehicle distance, acceleration, deceleration, alarm time, etc., which suit the driver's taste, are set as the inter-vehicle control parameters, the vehicle is run at the inter-vehicle distance that suits the driver's feeling. It is possible,
In addition, the driver is less likely to feel uncomfortable due to acceleration or deceleration or the length of the warning during the inter-vehicle distance control.

If it is determined from the driver information that the driver's driving history is short, that there are many traffic law violation history, or that there are many traffic accident history, the inter-vehicle distance is set larger than usual according to the driving skill of the driver. Preventing traffic accidents by setting the vehicle speed, setting the acceleration to a lower value, setting the deceleration to a higher rise, or setting the upper limit vehicle speed to within the limit vehicle speed to perform inter-vehicle distance control processing. You can also

By the way, although how to manage the driver information becomes a problem, for example, only the identification information of the owner is recorded in the recording medium, and the owner is stored in a predetermined storage device on the vehicle side. Other driver information corresponding to the identification information, that is, the driving skill and driving preference of the driver can be stored. In this case, the vehicle side acquires other relevant driver information from the storage device based on the identification information read from the recording medium.

Such a mode is convenient when the driver of the vehicle is limited to a certain range such as family limitation. Because the detailed data of the driver is stored in advance in the storage device of the vehicle in association with the identification information and only the identification information is read from the recording medium, the driver information can be easily obtained. Because.
Also, since there is little data to be read from the recording medium, the reading time can be shortened and the system can be made to function quickly.

However, when there is a possibility that an unspecified number of drivers will use the vehicle, such as when the vehicle is a shared vehicle of a company, the information of all these drivers is stored in the storage device on the vehicle side. With the configuration, it is necessary to prepare a large-capacity memory, which increases the cost.

Therefore, as described in claim 3, all the corresponding driver information including the identification information is recorded on the recording medium, and the reading means may be configured to read the driver information. . According to such a configuration, all the driver information of the specific driver is recorded on the recording medium side, so that it is not necessary to prepare a particularly large-capacity memory on the vehicle side. Further, since only the information of the specific driver is recorded on the recording medium side, it is not necessary to provide a particularly large memory on the recording medium. Then, the reading unit sequentially reads the driver information from the recording medium, whereby the same traveling control process as described above can be performed. In addition, since all the individual driver information is recorded on the recording medium side, for vehicles equipped with each means of this system, the driver brings his or her own recording medium and presents it. Can also use this system. As a result, it is particularly convenient when there are many drivers and vehicles.

It is convenient that such a recording medium is an IC card which also serves as a driver's license, as described in claim 4, for example. That is, since the driver is obliged to carry a driver's license, this IC card must be carried when driving a vehicle. Therefore, it is possible to prevent the driver from forgetting the IC card when driving the vehicle. Also, this IC
This is because the card is also used as a driver's license, so that there is no problem that the card is bothersome to carry.

Further, in the traveling control suitable for the driving preference of the driver described above, for example, as described in claim 5, the learning means records the driving history of the driver during the manual driving, and the driver records the driving history based on the driving history. The driving preference can be realized by learning the driving preference and the driver preference information is included in the driver information.

However, since the driving preference of the driver changes as the driving skill improves, when the driving preference of the driver learned by the learning means changes as described in claim 6. In addition, it is preferable that the updating means updates the driving preference information as the driver information.

With this configuration, it is possible to realize the vehicle traveling control which flexibly copes with the improvement of the driving skill of the driver and the change of the driving preference. On the other hand, from the perspective of road traffic managers such as police, from the perspective of traffic safety, for drivers with a history of traffic law violations and traffic accidents, it is necessary to drive that driver until it improves or improves. It may be desirable to impose certain restrictions.

Therefore, as described in claim 7, at least one of the traffic regulation violation information and the traffic accident information of the driver can be recorded as the driver information on the recording medium, and the traffic regulation violation information is read by the reading means. Alternatively, when the traffic accident information is read, the extracting means may be configured to extract the vehicle control information having a higher degree of safety than the standard control from the respective vehicle control information. Here, "the safety degree is higher than the standard control" means that the standard traveling control that is normally performed is limited to some extent and various control amounts are set on the safer side. For example, for inter-vehicle distance control, it means that the inter-vehicle distance is set to be larger than usual, the acceleration is set to be slower, the deceleration rise is set to be stronger, or the upper limit vehicle speed is set to be within the limit vehicle speed. .

According to such a configuration, although it may be slightly off the driver's driving preference, it is possible to meet the social demand for preventing a traffic accident. However, in this case, if the traffic regulation violation information and the traffic accident information are recorded on the recording medium, the driving preference of the driver is limited. Therefore, the driver himself / herself is willing to record this information or record the information. Therefore, it may not be expected to present the recording medium to a predetermined institution or the like. Therefore, for example, when the recording medium is a recording medium that also serves as a driver's license, it is necessary for the administrator (police, etc.) side to write such information when updating the driver's license.

However, if the information such as the traffic regulation violation information and the traffic accident information cannot be obtained until the driver's license is renewed, the function of the present system in terms of traffic safety can be sufficiently exerted. It is thought that there is no. Therefore, it is preferable that the information can be acquired in real time.

Therefore, it is assumed that a management center (such as a police traffic management system) that manages the traffic regulation violation information and the traffic accident information of the driver is connected to a wide area network such as the Internet. It is conceivable to build the vehicle control system.

That is, in the vehicle control system, the management center is accessed through the wide area network, and the transmission means transmits the personal information included in the driver information. The "personal information" means information that can identify the driver individual, such as a driver's license number. Then, from the management center that has received this personal information, the corresponding traffic regulation violation information and traffic accident information are transmitted, and the receiving means receives these information as driver information. When the receiving means receives at least one of the traffic regulation violation information and the traffic accident information, the extracting means selects from among the respective vehicle control information, vehicle control information having a higher degree of safety than standard control, that is, for safe driving. Vehicle control information to which a certain limitation such as a speed limitation is added is extracted.

According to this structure, the management center is accessed each time the vehicle is driven, and the current traffic regulation violation information and traffic accident information of the driver are acquired in real time. The traveling control of the vehicle can be performed. However, since the degree of the driving violation history and the like also varies, the determining means determines the safe driving degree of the driver based on each information received by the receiving means, as described in claim 9. When the safe driving degree is lower than a predetermined reference value, the extracting means may be configured to extract the vehicle control information having a higher safety degree than the standard control from the respective vehicle control information.

The "safe driving degree" here can be evaluated by, for example, the number of traffic regulations violations or traffic accidents within a certain period, the content of the violation, etc., and the type and number of the evaluation parameters and their reference values. Will be set appropriately when constructing this system.

The term "standard control" as used herein means control in the case where traffic regulation violation information, traffic accident information, etc. are not considered at all. For example, the inter-vehicle distance control corresponds to the case where the inter-vehicle distance control parameters such as the inter-vehicle distance, the acceleration, and the deceleration are set to standard setting values.

Whether or not the driver is driving safely cannot always be judged only by the history of violation of traffic regulations and the history of traffic accidents. Depending on the driver who excels in driving skill, even if you drive around roughly and disturb the surroundings,
This is because it is possible to successfully avoid traffic accidents and skillfully escape from the enforcement of traffic law violations.

Therefore, as described in claim 10, the second
The determining means records the driving history of the driver during manual driving, and determines the safe driving degree of the driver from the driving history. When the safe driving degree is lower than a predetermined reference value, the extracting means However, vehicle control information having a higher degree of safety than standard control may be extracted from each vehicle control information.

The "safe driving degree" in this case can be evaluated by, for example, the number of times the driver suddenly brakes, acceleration, deceleration, etc., extracted from the driving history during manual driving. The type and number of the evaluation parameters and their reference values will be set appropriately when the system is constructed. Further, the "standard control" referred to here means a control when the safe driving degree of the driver is not considered at all.
For example, the inter-vehicle distance control corresponds to the case where the inter-vehicle distance control parameters such as the inter-vehicle distance, the acceleration, and the deceleration are set to standard setting values.

According to such a configuration, it is possible to more realistically grasp whether or not the driver is driving safely, and by controlling the vehicle in accordance therewith, not only the safety of the driver but also the surrounding area is secured. can do. by the way,
When the driver's safe driving level is improved and its safety is ensured, it is not necessary to limit the vehicle driving control, but rather it is released to provide driving control that matches the driving preference of the driver. It is preferable to switch.

Therefore, as described in claim 11, when it is judged by the judging means or the second judging means that the safe driving degree becomes higher than a predetermined standard value, the second updating means The driver information may be updated to select the vehicle control information corresponding to the standard control or the control that matches the driving preference of the driver.

With this configuration, the driver can drive the vehicle in a form that is more suitable for his or her feeling, provided that safe driving is ensured. Further, in this case, as described in claim 12, when the writing means writes the driver information updated by the second updating means in the recording medium, the fact that the safe driving degree of the driver is improved is described. It can be reflected in the traveling control of other vehicles.

In this case, if the recording medium is written when the medium is removed from the vehicle, the number of times the recording medium is accessed can be reduced and the processing load can be reduced, whereby the vehicle control can be executed at high speed. You can Further, as described in claim 13, the authenticating means authenticates that the driver is a predetermined driving permitter or a new driving permitter, and only when the authenticating means authenticates the driver.
It is also preferable that the engine of the vehicle is allowed to start.

According to this structure, it is possible to prevent a vehicle from being stolen by a third party. Further, since the engine does not start unless it is authenticated, it is possible to prevent the driver from driving without a license. From the viewpoint of satisfying the driver's driving preference, it is also preferable to automatically control the driving environment inside the vehicle such as the temperature inside the vehicle, the position of the seat or the position of the mirror.

Therefore, in the vehicle control system according to the fourteenth aspect, the reading means reads the driving environment information from a portable recording medium in which the driving environment information matching the driver's taste is recorded in advance, and the control means causes the reading means to read the driving environment information. Adjustment control of the driving environment of the vehicle is performed based on the driving environment information read by the reading means.

That is, since the vehicle interior temperature, the position of the seat, the position of the mirror, etc., which the driver prefers, are recorded on this recording medium, when the recording medium is presented, the reading means reads it and the control means Adjust immediately. Therefore, the driver is automatically and unknowingly provided with a comfortable driving environment.

[0042]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] This embodiment shows an example of a vehicle control system of the present invention, and FIG. 1 is a block diagram showing an outline of various control circuits constituting an in-vehicle device to which the vehicle control system is applied. Is.

As shown in FIG. 1, the in-vehicle device 10 includes a laser radar sensor 8, an electronic control device for controlling the following vehicle (hereinafter referred to as "interval controlling ECU") 11, an electronic control device for controlling an engine (hereinafter referred to as "engine controlling ECU"). 21), electronic control device for brake control (hereinafter referred to as "brake control ECU")
31), a navigation device 40 including an electronic control unit for navigation (hereinafter referred to as "navigation ECU") 41, an electronic control device for body control (hereinafter referred to as "body ECU") 51, an electronic control device for air conditioner control (hereinafter referred to as " 61), and a reading / writing device 71 for reading driver information from the IC card 72 or writing a change in the driver information in the IC card. Each of these ECUs and devices 11, 2
1, 31, 41, 51, 61, 71 are in-vehicle LAN (LO
CAL AREA NETWORK) 9 so that information can be transmitted to each other.

The vehicle-interval control ECU 11 is an electronic circuit mainly composed of a microcomputer, and a cruise main switch 12 for the driver to start the vehicle-interval control ECU 11 voluntarily, and the driver sets a so-called target vehicle-interval time. A cruise control switch 13, a communication device 14 for performing predetermined wireless communication with the outside, and the like are connected.

The inter-vehicle distance control ECU 11 receives a current vehicle speed signal, a throttle opening signal, a control state signal such as an idle control state and a transmission shift position from the engine control ECU 21, and a steering angle signal and a yaw rate signal from the brake control ECU 31. Etc. Then, the vehicle-interval control ECU 11 estimates the curve curvature radius R based on the received data, or executes the vehicle-interval control calculation according to a preset vehicle-interval control program.

The laser radar sensor 8 is an electronic circuit mainly composed of a laser scanning range finder and a microcomputer. The laser radar sensor 8 detects the angle and relative speed of the preceding vehicle detected by the scanning range finder, and the distance between vehicles. Control E
Based on the current vehicle speed signal, the radius of curvature of the curve, etc. received from the CU 11, the own lane probability of the preceding vehicle is calculated as a part of the function of the following distance control device, and the following distance control ECU 11 is calculated as the preceding vehicle information including the information such as the relative speed. Send to. Further, the diagnosis signal of the laser radar sensor 8 itself is also transmitted to the headway distance control ECU 11.

The inter-vehicle distance control ECU 11 determines the preceding vehicle to be subjected to the inter-vehicle distance control based on the own lane probability included in the preceding vehicle information thus received from the laser radar sensor 8 and the inter-vehicle distance with the preceding vehicle. As a control command value for appropriately adjusting the distance, a target acceleration signal, a fuel cut request signal, etc. are transmitted to the engine control ECU 21, and a brake request signal is transmitted to the brake control ECU 31. Further, an alarm request signal or a diagnosis signal when it is determined that an alarm has been generated is transmitted to the body ECU 51 and displayed on a display device 54 such as an LCD provided on the dashboard.

The brake control ECU 31 is an electronic circuit mainly composed of a microcomputer,
The steering angle and yaw rate are obtained from the steering sensor 32 that detects the steering angle of the vehicle, the yaw rate sensor 33 that detects the yaw rate, and the wheel speed sensor 34 that detects the speed of each wheel. It controls the brake actuator 35 that transmits the signal to the ECU 21 or controls the opening / closing of the pressure increase control valve / pressure decrease control valve provided in the brake hydraulic circuit for controlling the braking force. Also brake control EC
U31 sounds the alarm buzzer 36 in response to the alarm request signal from the headway distance control ECU 11.

The engine control ECU 21 is an electronic circuit mainly composed of a microcomputer,
A throttle opening sensor 22, which detects the throttle opening,
A vehicle speed sensor 23 for detecting the vehicle speed, a brake switch 24 for detecting whether or not the brake pedal is depressed, and detection signals from other sensors and switches are received, and further a target acceleration signal from the headway distance control ECU 11, a fuel cut request signal, etc. To receive.

Then, the engine control ECU 21 adjusts the throttle opening degree of the internal combustion engine (here, the gasoline engine) as the driving means in accordance with the operating condition judged from the received signal.
5, the drive command is output to the transmission 26, the injector 27, and the like. These actuators make it possible to control the output of the internal combustion engine, the braking force or the shift shift. Further, the engine control ECU 21 sends necessary display information to the body ECU 51.
And display it on a display device 54 such as an LCD provided on the dashboard.

The navigation device 40 includes a navigation ECU 41, a position detecting device 42 and a map data input device 4.
3, an operation switch group 44, and a display device 45. The position detection device 42 includes the vehicle speed sensor 23 and the gyroscope 4
6. GPS (Global Positioning System) receiver 47
And detects the current position of the vehicle. GPS receiver 47
Receives a radio wave transmitted from a GPS satellite via a GPS antenna. These sensors, etc. 23, 4
Since each of 6 and 47 has an error of a different property, a plurality of sensors complement each other to enhance the position detection accuracy. Then, depending on the required position detection accuracy, these sensors, etc. 23, 46, 47
It may be configured with only a part of
In addition to 3, 46, 47, a sensor for accumulating steering angles of the vehicle obtained from the rotation difference between the left and right steered wheels or the like to obtain a direction, a geomagnetic sensor, or the like may be used.

The map data input device 43 inputs the map data stored in the recording medium. The map data includes data representing road connections, map matching data for improving position detection accuracy, and the like. As the recording medium for storing the map data, a CD-ROM is generally used because of its data amount, but other recording medium such as a DVD or a memory card may be used.

The operation switch group 44 is composed of various switches for operating the navigation device 40. Specifically, the switches for switching the display contents displayed on the display device 45 and the route for the driver to reach the destination. A switch for setting (guidance route) is included. still,
The various switches that form the operation switch group 44 include:
A touch switch integrated with the display device 45 may be used, or a general mechanical switch may be used. The display device 45 displays the current position and the like of the vehicle on the map.

The navigation ECU 41 is an electronic circuit mainly composed of a microcomputer, and is set by the driver based on each signal inputted from the position detecting device 42, the map data input device 43 and the operation switch group 44. The optimum route to the destination is selected using a known technique such as the Dijkstra method, and the route and the current position of the vehicle are displayed on the display device 45. Further, the navigation ECU 41 indicates the signals input from the position detection device 42 and the map data input device 43, the signal indicating the preceding vehicle information input from the laser radar sensor 8, and the operation state of the turn signal (not shown). Each control signal for target acceleration regulation control is generated based on the signal thus expressed, and each control signal is output to the headway distance control ECU 11.

The body ECU 51 is an electronic circuit mainly composed of a microcomputer, and includes a rotation speed sensor (not shown), a switch for adjusting the front-rear position and height of the seat, and the position and angle of the mirror. Sensors and switches such as switches for adjusting the position are connected, and various actuators such as a seat actuator 52 and a mirror actuator 53 for adjusting these positions are connected. Incidentally, these various actuators can be adjusted and controlled by an external signal via the in-vehicle LAN 9.

The air conditioner ECU 61 is an electronic circuit composed mainly of a microcomputer, and is connected with sensors and switches such as an outside air temperature sensor, an inside air temperature sensor, an air conditioner switch operated by a driver, and the like. Various actuators 62 for controlling the air conditioner such as a blower motor for blowing air and an air mix damper for switching the air distribution are connected. Then, the state quantity input from each sensor, the vehicle speed, the engine speed,
Also, arithmetic processing is performed based on the data representing the water temperature and the like to drive and control each actuator. The various actuators 62 are also configured to be adjustable and controllable by an external signal via the in-vehicle LAN 9.

The reading / writing device 71 reads the driver information from the IC card 72 owned by the driver and outputs the driver information in order to make the present system function, as will be described later in the vehicle control process. It is transmitted to the inter-vehicle control ECU 11 and the like via the in-vehicle LAN 9. FIG. 2 shows a state in which the reading / writing device 71 is installed in the passenger compartment. Then, after the predetermined vehicle control processing is completed, the change of the driver information is written in the IC card 72 as necessary.

The IC card 72 also serves as a driver's license and has a memory of a predetermined capacity. This memory has driver's license number, driver's license (driving license acquisition date), age, gender, residential area, driver's driving skill (traffic law violation history) as driver information for use in vehicle control processing described later. , Traffic accident history), driving preference, etc. are stored.

In the present embodiment, this driver's license number,
Personal information such as driving history, age, gender, living area, etc. is extracted from the police database that manages the driver's license data, and is recorded in advance when the driver's license (that is, IC card 72) is issued or updated. It is supposed to be done.
Regarding the driving skill, it is also assumed that data such as a traffic law violation record and a traffic accident record, which are also stored in the police database, are recorded when the driver's license is updated. Further, regarding the driving preference, the inter-vehicle control ECU 1
1 records the driving history such as the traveling speed, acceleration, deceleration, and inter-vehicle distance of the vehicle by the manual operation of the driver, which changes according to various traveling environments such as road type, traveling area, and weather, and records the tendency. When learning and removing the IC card 72 from the reading / writing device 71, the information is written in the IC card 72.

On the other hand, the vehicle control information for performing vehicle control corresponding to the driver information is stored in the memory on the side of the inter-vehicle distance control ECU 11. This vehicle control information is control information for performing vehicle control according to various traveling environments based on personal information and driving skill included in the driver information.
For example, for driver information where the driver's driving skill is judged to be inadequate due to driving history, driving skill, etc., the inter-vehicle distance is set larger than usual, the acceleration is set slower, or the deceleration rise is set stronger. Alternatively, the inter-vehicle control information for setting the upper limit vehicle speed within the limited vehicle speed is stored as the vehicle control information. That is, the vehicle control information has different set values depending on the driver information.

The inter-vehicle distance control ECU 11 includes a read / write device 7
When the driver information is received from 1, the vehicle control information corresponding to the driver information is extracted from the memory, and the inter-vehicle distance control processing according to the vehicle control information is executed. Next, the vehicle control process of the present embodiment will be described based on the flowcharts of FIGS. 3 and 4 and the explanatory view of FIG. 3 is a process executed by the reading / writing device 71, and FIG. 4 is a process executed by the headway distance control ECU 11.

First, as shown in FIG. 3, the driver inserts his / her IC card 72 into the reading / writing device 71, and
When this is detected on the writing device 71 side (S110: YE
S), the reading / writing device 71 reads the driver information from the IC card 72 and transmits it to the headway distance control ECU 11 (S120).

4, when the inter-vehicle distance control ECU 11 receives the driver information transmitted from the reading / writing device 71 (S210: YES), the driver operates the cruise main switch 12 to control the current inter-vehicle distance ( A
It is judged whether or not it is in the (CC) mode (S22).
0).

At this time, when it is determined that the vehicle-interval control mode is set (S220: YES), subsequently, the memory is referred to based on the content of the driver information, and the corresponding vehicle control information is extracted (S230). ). For example, if the driver information is information indicating that the driver's driving skill is immature due to driving history, driving skill, etc., the inter-vehicle distance is made larger than usual, the acceleration is slowed down, and the deceleration rise is strengthened. The inter-vehicle control information is set such that the upper limit vehicle speed is set within the limited vehicle speed and the alarm sound generation timing is further advanced.

For example, the setting for advancing the alarm sound timing is shown in FIG. In this case, if the standard vehicle (standard vehicle) is set to generate an alarm sound from the alarm buzzer 36 at a timing 3 seconds before the collision with the preceding vehicle, a driving accident is recorded as driving skill information. For a vehicle (accident vehicle) driven by a driver with a long history, vehicle control information that causes an alarm buzzer 36 to generate an alarm sound at a timing 4 seconds before the collision with the preceding vehicle with a little margin is extracted. To be done. Therefore, the safety of the driver having a low driving skill can be achieved. still,
The information indicating the correspondence between the driver information and the inter-vehicle distance control information is stored in advance in the memory of the inter-vehicle distance control ECU 11.

Then, on the basis of the information such as the following distance, the acceleration, the deceleration, the upper limit speed, and the information received from the laser radar sensor 8, the following distance control calculation is performed according to the following distance control program. (S
240). Then, based on the calculation result, the above-mentioned various control signals are transmitted to the engine control ECU 21, the brake control ECU 31, etc., and the target inter-vehicle distance control is executed (S250).

On the other hand, in S220, when it is determined that the inter-vehicle distance control mode is not set, that is, the driver is in the manual traveling state (S220: NO), subsequently, in order to grasp the driving preference of the driver, each road type is determined. A data map of the inter-vehicle distance, acceleration, deceleration, etc. is created from the traveling state of (S260).

In this data map, for example, FIG.
As shown in the example for a general road (one lane) in an urban area, how much is the average distance between vehicles for speed and acceleration at that time (or deceleration: negative value indicates deceleration)? Is recorded. Then, the vehicle-to-vehicle distance control according to the information on the speed, the acceleration, and the vehicle-to-vehicle distance shown in this data map becomes the vehicle-to-vehicle distance control that suits the taste of the driver, and the information is stored as the vehicle control information. Similarly, data maps are created for other roads such as two or more lanes on general roads and highways.
The type of road at this time is the navigation ECU 4
1 from the vehicle traveling road information received via the in-vehicle LAN 9. Then, when the data map created at this time is different from the contents of the data maps created up to the previous time, the vehicle control information is rewritten and updated with the contents of the data map of this time as necessary.

Then, it is determined whether the vehicle is stopped and the driving is completed (S270). If it is determined that the driving is not completed (S270: NO), the process returns to S220. On the other hand, when it is determined that the driving is completed (S2
70: YES), and transmits the vehicle control information stored in the memory to the read / write device 71 (S280).

Returning to FIG. 3, when the reading / writing device 71 receives this vehicle control information (S130: YES), it is determined whether or not the vehicle control information has been updated from the previous time (S140). If it is determined that the update has been made (S140: YES), the update information is written to the IC card 72 at the timing when the driver presses the predetermined button for removing the IC card 72 from the read / write device 71. (S150). On the other hand, if it is determined that it has not been updated (S140: NO), the process ends.

The vehicle control information represented in the data map created in S260 of FIG. 4 is reflected in the subsequent vehicle control as a representation of the driver's driving preference. That is, in the process of S230 in the next vehicle distance control, the driving preference is extracted as the vehicle control information. Therefore, unless the driver's driving skill or the like has a problem, the vehicle control suitable for the driving preference is performed. Therefore, the traveling control of the vehicle is performed according to the driver's feeling.

As described above, according to the vehicle control system of this embodiment, the vehicle control information corresponding to the driver information is extracted and the vehicle control is performed based on the extracted vehicle control information. On the other hand, traveling control is performed on the safe side, and it is possible to prevent traffic accidents due to poor driving. Further, for a driver having a high driving skill, the traveling control that matches the driving preference of the driver is performed, and the driver's feeling can be satisfied. That is, the vehicle control system according to the present embodiment can realize traveling control of the vehicle suitable for each driver.

Further, since all the driver information of a specific driver is recorded in the IC card 72, the driver brings his / her own IC card 72, so that the reading / writing device 71
The system can be used in any vehicle provided with. As a result, it is particularly convenient when a plurality of vehicles to which the present system is applied are shared by a plurality of drivers. Further, since the IC card 72 also serves as the driver's license, the driver does not feel particularly troublesome to carry the IC card 72.

In the present embodiment, the vehicle-interval control ECU
Reference numeral 11 corresponds to a storage unit, an extraction unit, a learning unit, and an updating unit, and the reading / writing device 71 corresponds to a reading unit and a writing unit. In addition, the vehicle distance control ECU 11 and the engine control EC
The U21 and the brake control ECU 31 correspond to the control unit and the headway distance control unit. [Second Embodiment] In the first embodiment, an example in which information such as a history of traffic law violations and a history of traffic accidents as driver information related to driving skill is updated at the same time when a driver's license is updated, is shown. It is desirable that these pieces of information can be acquired in real time from the viewpoint of traffic safety and the viewpoint of satisfying the driving preference of the driver.

Therefore, in the present embodiment, an example will be described in which information such as traffic regulation violation information and traffic accident information is acquired in real time via the Internet so that the function of the present system can be more effectively exerted. FIG. 6 is an explanatory diagram showing a schematic configuration of the vehicle control system of this embodiment. Since the configuration of the control circuit and the like of the vehicle control system of this embodiment is the same as that of the first embodiment, the description of the same components will be omitted.

In this embodiment, it is assumed that the Internet 2 as a wide area network is connected to a management center (traffic management system of police) 4 for managing traffic regulation violation information and traffic accident information of drivers. . Figure 6
As shown in, in the vehicle control system of the present embodiment, the vehicle-mounted device 10 similar to that of the first embodiment is mounted on the vehicle side. The present system corresponds to so-called IPv6, which is being introduced in recent years, and an IP address for identifying the own vehicle is set in the vehicle-mounted device 10. Therefore, by using this IP address, the inter-vehicle distance control EC
The communication device 14 of U11 is configured to be communicatively connectable to the administrator terminal 5 on the management center 4 side via the Internet 2.

Next, the vehicle control process executed in this system will be described with reference to the flowchart of FIG. Since the processing executed by the reading / writing device 71 in this embodiment is the same as the processing of FIG. 3 described in the first embodiment, the description thereof is omitted, and the following distance control E is performed.
Only the processing of the CU 11 will be described.

As shown in FIG. 7, the headway distance control ECU 11
When the driver information transmitted from the reading / writing device 71 is received (S310: YES), the driver operates the cruise main switch 12 to determine whether or not it is currently in the inter-vehicle distance control (ACC) mode ( S3
20).

At this time, if it is determined that the vehicle is not in the inter-vehicle distance control mode, that is, the driver is in the manual traveling state (S320: NO), then the vehicle travels for each road type in order to grasp the driving preference of the driver. A data map of the inter-vehicle distance, acceleration, deceleration, etc. is created from the state (S330). Since this content is the same as the processing in S260 in FIG. 4, its description is omitted.

On the other hand, if it is determined in S320 that the inter-vehicle distance control mode is set (S320: YES), subsequently, the memory is referred to based on the contents of the driver information, and the corresponding vehicle control information is extracted. (S340). At the same time, the driver's license number is extracted from the driver information, and is sent from the communication device 14 to the management center 4.
The driver's license number is transmitted as personal information, and the driver's driving skill information such as traffic regulation violation information and traffic accident information is requested to be transmitted. The personal information and the like are sent to the administrator terminal 5 via the Internet 2.

Then, since the management center 4 receiving this personal information transmits the traffic regulation violation information and the traffic accident information of the corresponding driver, the communication device 14
These pieces of information are received as driver information (S35).
0). Then, it is determined whether or not the driver's safe driving level has a problem from the traffic regulation violation information and traffic accident information of the driver received at this time and the driving history information read from the IC card 72 (S360).

The degree of safe driving can be evaluated, for example, by the number of traffic regulations violations or traffic accidents within a certain period, the content of the violation, or the like. In addition, for example, it can be evaluated by the number of times the driver suddenly brakes, the acceleration, the deceleration, etc., which are extracted from the driving history information stored during manual driving. At this time, the types and number of evaluation parameters and their reference values will be appropriately set when the system is constructed.

At this time, if there is a problem with the safe driving degree of the driver, that is, if it is determined that the safe driving degree is lower than a predetermined reference value (S360: YES), the safety information is selected from the vehicle control information. Vehicle control information whose degree is higher than standard control is extracted. The standard control here means general vehicle control that does not consider the safe driving degree of the driver at all. Therefore, as vehicle control information with a higher degree of safety than standard control, the inter-vehicle distance is made larger than usual, the acceleration is slowed down, the deceleration rise is strengthened, the upper limit vehicle speed is set within the limit vehicle speed, and the alarm sound generation timing is set. The inter-vehicle distance control information for which the speed is set is extracted.

Then, based on the information such as the following distance, the acceleration, the deceleration, the upper limit speed, and the information received from the laser radar sensor 8, the following distance control calculation is performed according to a preset distance control program. A process is implemented (S370). Then, based on this calculation result, the various control signals described above are transmitted to the engine control ECU 21, the brake control ECU 31, etc., and the target inter-vehicle distance control is executed (S380). This inter-vehicle distance control is continued until the inter-vehicle distance control mode is turned off by the driver operating the cruise main switch 12 (S390).

On the other hand, if it is determined in S360 that there is no problem in the safe driving degree of the driver (S360:
NO), the inter-vehicle distance control information set to the standard control is extracted. At this time, if the driver information includes information indicating the driving preference, the inter-vehicle control information that matches the driving preference is extracted.

Then, on the basis of the information such as the following distance, acceleration, deceleration, and upper limit speed extracted at this time, and the information received from the laser radar sensor 8, the following distance control calculation according to a preset distance control program. A process is implemented (S400). Then, based on this calculation result, the various control signals described above are transmitted to the engine control ECU 21, the brake control ECU 31, etc., and the target inter-vehicle distance control is executed (S410). This headway distance control is continued until the headway distance control mode is turned off by the driver operating the cruise main switch 12 (S420).

Then, it is determined whether or not the vehicle is stopped and the driving is completed (S430). If it is determined that the driving is not completed (S430: NO), the process returns to S320. On the other hand, if it is determined that the driving is completed (S4
30: YES), and then the safe driving degree is evaluated (S4)
40).

The evaluation of the safe driving degree is an evaluation as to whether or not the safety degree of the driver is improved as compared with the safe driving degree before that, and the kinds and the number of the evaluation parameters and the criteria for the evaluation. The value may be the same as or different from that in S360. It will be set appropriately when constructing this system.

When it is evaluated that the safe driving degree is improved (S450: YES), the driver information is rewritten and updated so that the vehicle control information that matches the driving preference of the driver can be selected from the next time (S450: YES). S460). Then, the updated driver information is read by the read / write device 71.
(S470). On the other hand, if it is evaluated in S450 that the safe driving level has not improved or has decreased (S450: NO), driver information indicating that fact is transmitted to the reading / writing device 71 (S470). That is, when the communication device 14 has increased the information such as traffic regulation violation or traffic accident, the fact is added to the driver information and transmitted to the read / write device 71.

As described above, according to the inter-vehicle distance control system of the present embodiment, when the vehicle is controlled, the information indicating the driving skill of the driver is acquired in real time via the Internet 2, so that the driver can drive safely. It is possible to more realistically grasp whether or not there is. Then, by controlling the vehicle in accordance therewith, not only the safety of the driver but also the surroundings can be secured.

Further, in the present embodiment, the communication device 14 further corresponds to the transmitting means and the receiving means, and the inter-vehicle control ECU
Reference numeral 11 corresponds to the determining means, the second determining means, and the second updating means. [Third Embodiment] In the first embodiment, the driver information regarding the driver's skill and driving preference is used as an IC for a driver's license.
An example of recording on the card 72 and performing traveling control of the vehicle suitable for the driver based on this is shown. With this, the IC card 72 that also serves as this driver's license
It is also possible to build a configuration that prevents the vehicle from being stolen.

Therefore, in this embodiment, the IC card 7
An example of a vehicle control system configured such that the engine can be started only for an appropriate driver based on the driver information recorded in 2 will be described. Since the configuration of the control circuit and the like of the vehicle control system of this embodiment is the same as that of the first embodiment, the description of the same components is omitted.

The memory of the inter-vehicle distance control ECU 11 of this embodiment stores in advance an identification code for determining whether the driver's license is not a forged license, that is, whether it is a regular driver's license. If this identification code is not recorded in the IC card 72 of the driver, or if the recorded identification code does not match, it is determined that the license is a forged license and the engine is controlled to be unable to start.

Further, the memory stores information on a list of authorized drivers who are permitted to drive the vehicle. The driver is the authorized driver by referring to the driver information read from the IC card 72. Only in this case, the engine of the own vehicle is controlled to be startable. This driver-authorized list can be managed, for example, by recording a part of the driver's license data (driver's license code) in a memory with the purchaser present at the vehicle dealer when the vehicle is purchased.

Hereinafter, based on the flowchart of FIG.
Vehicle control processing executed by the vehicle-interval control ECU 11 of the present embodiment will be described. First, the driver inserts his / her IC card 72 into the reading / writing device 71, and then the reading / writing device 7
When this is detected on the first side, the read / write device 71 determines that the IC
Inter-vehicle distance control EC by reading driver information from the card 72
Send to U11.

Then, as shown in FIG. 8, the headway distance control EC
Upon receiving the driver information transmitted from the reading / writing device 71 (S510: YES), the U11 first determines whether or not this driver's license is valid (S5).
20). That is, it is determined whether or not the identification code previously stored in the memory as described above and the identification code extracted from the driver information match, and if they do not match, it is determined that the license is a forged license (S520). : NO), a control signal for generating an alarm sound is output to the brake control ECU 31 via the alarm buzzer 36 (S530).

On the other hand, if the identification codes match in S520 and it is determined that the driver's license is valid, (S
520: YES), and subsequently, the driver-authorized person list stored in the memory in advance is compared with the personal information extracted from the driver information to determine whether or not the driver is a person who is permitted to drive the vehicle. A determination is made (S540). Then, when it is determined that the driver is a driver (S540: YE
S), the engine control signal to permit engine start E
The data is output to the CU 21 (S600). Then, after that, the vehicle control process described in the first embodiment or the second embodiment is executed.

On the other hand, if it is determined in S540 that the driver is not a person who is permitted to drive the vehicle (S540: NO), then a signal for prompting new user registration is sent to the navigation ECU 41. To send. At this time, the display device 45 of the navigation device 40
, A predetermined new user registration setting screen is displayed, and an input for confirming the intention of the new user registration is prompted (S
550).

At this time, if the driver does not make a predetermined input for requesting new user registration via the operation switch group 44 (S560: NO), it is determined that the driver is not the authorized person, and the alarm buzzer is issued. A control signal for generating an alarm sound via the brake control ECU 3
It outputs to 1 (S530).

On the other hand, in S560, if the driver's input confirms the intention of new registration (S56
0: YES), and subsequently prompts the user to enter the password acquired from the vehicle owner (S570). That is, in the present embodiment, a person authorized to use the vehicle can be added by inputting a specific password held by the owner of the vehicle.

When the password entered by the driver matches the owner's password stored in advance in the memory (S580: YES), the driver information of the driver is registered in the authorized driver list in the memory. (S
590), a signal permitting engine start is output to the engine control ECU 21 (S600). Then, after that, the vehicle control process described in the first embodiment or the second embodiment is executed.

On the other hand, in S580, when the password input by the driver does not match the password of the owner stored in advance in the memory (S580: NO), it is determined that the driver is not the authorized person and the alarm buzzer 36 is activated. Brake control E is used as a control signal to generate an alarm sound via
The data is output to the CU 31 (S530).

As described above, according to the inter-vehicle distance control system of this embodiment, based on the driver information recorded in the IC card 72, it is determined whether or not the driver is a person who is permitted to drive the vehicle. Authentication is performed and the engine start of the vehicle is permitted only when the authentication is performed, so that the vehicle is prevented from being stolen by the IC card 72 of a third party. Further, since the engine does not start unless the recording medium is presented, it is possible to prevent the driver from driving without a license.

In this embodiment, the headway distance control ECU 11 also corresponds to the authentication means. Although the embodiments of the present invention have been described above, it goes without saying that the embodiments of the present invention are not limited to the above embodiments and can take various forms within the technical scope of the present invention. Nor.

For example, from the viewpoint of satisfying the driving preference of the driver, it is also preferable to automatically control the driving environment inside the vehicle such as the temperature inside the vehicle, the position of the seat or the position of the mirror. Therefore, driving environment information such as the driver's favorite vehicle interior temperature, seat position, or mirror position is recorded in advance in the IC card 72 as driver information, and the reading / writing device is used during driving by the driver. When 71 reads this driver information, a control signal for realizing the contents may be immediately transmitted to the body ECU 51.

According to this structure, the driver's favorite temperature in the passenger compartment, the position of the seat, the position of the mirror, and the like are immediately adjusted. Therefore, the driver is automatically and unknowingly provided with a comfortable driving environment.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle control system according to a first embodiment of the present invention.

FIG. 2 Reading / reading of the vehicle control system according to the first embodiment
It is explanatory drawing which shows the example in which the writing device and the IC card were installed in the vehicle interior.

FIG. 3 is a flowchart showing a vehicle control process according to the first embodiment.

FIG. 4 is a flowchart showing a vehicle control process according to the first embodiment.

FIG. 5 is an explanatory diagram illustrating a vehicle control process according to the first embodiment.

FIG. 6 is an explanatory diagram showing a configuration of a vehicle control system according to a second embodiment of the present invention.

FIG. 7 is a flowchart showing a vehicle control process according to a second embodiment.

FIG. 8 is a flowchart showing a vehicle control process according to a third embodiment.

[Explanation of symbols]

2 ... Internet, 4 ... Management Center, 5
... Administrator terminal, 8 ... Laser radar sensor, 1
0 ... In-vehicle device, 14 ... Communication device, 71 ...
Reading / writing device, 72 ... IC card, 11 ...
Inter-vehicle control ECU, 21 ... Engine control ECU, 3
1 ... Brake control ECU, 41 ... Navigation ECU, 51 ... Body ECU, 61 ... Air conditioner ECU

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Claims (14)

[Claims] 1. A storage means for storing a plurality of preset vehicle control information in association with each of a plurality of driver information in order to carry out a vehicle traveling control preset according to the driver information. A reading unit for reading the identification information from a portable recording medium in which the identification information of the driver included in the driver information is recorded in advance, and the driver information corresponding to the identification information read by the reading unit. Extraction means for extracting vehicle control information corresponding to the driver information from a storage means, and control means for controlling traveling of the vehicle based on the vehicle control information extracted by the extraction means. Vehicle control system. 2. The inter-vehicle control means includes inter-vehicle distance control means for executing inter-vehicle distance control based on a preceding vehicle traveling in front of the own vehicle, based on the vehicle control information. 2. The vehicle control system according to claim 1, wherein the vehicle-interval control is performed based on the vehicle-interval control parameter extracted by the means as the vehicle control information. 3. The recording medium stores all of the corresponding driver information including the identification information, and the reading unit reads the driver information. Vehicle control system. 4. The vehicle control system according to claim 1, wherein the recording medium is an IC card which also serves as a driver's license. 5. The vehicle control system according to claim 1, further comprising a learning means for recording a driving history of the driver during manual driving and learning the driving preference of the driver from the driving history. The vehicle control system, wherein the driver information includes driving preference information learned by the learning means. 6. The vehicle control system according to claim 5, further comprising an updating unit that updates the driving preference information to the changed contents when the driving preference of the driver learned by the learning unit changes. A vehicle control system characterized by the above. 7. The driver information is capable of recording at least one of traffic regulation violation information and traffic accident information of the driver, and when the reading means reads the traffic regulation violation information or traffic accident information. 7. The vehicle control system according to claim 1, wherein the extraction means extracts vehicle control information having a higher degree of safety than standard control from the vehicle control information. 8. The vehicle control system according to claim 1, further comprising a wide area network to a management center that manages at least one of traffic regulation violation information and traffic accident information of the driver. Means for accessing and transmitting personal information included in the driver information, and corresponding traffic law violation information and traffic accident information transmitted from the management center that received the personal information via the wide area network. Receiving means for receiving at least one of the vehicle control information as the driver information, and the extracting means, when the receiving means receives at least one of the traffic regulation violation information and the traffic accident information, the vehicle control information. The vehicle control system is characterized by extracting vehicle control information having a higher degree of safety than standard control. 9. The vehicle control system according to claim 8, further comprising: a determining unit that determines a safe driving degree of the driver based on each of the pieces of information received by the receiving unit, and the extracting unit. When the safe driving degree judged by the judging means is lower than a predetermined reference value, vehicle control information having a higher safety degree than the standard control is extracted from the respective vehicle control information. . 10. The vehicle control system according to claim 1, further comprising recording a driving history of the driver during manual driving, and determining a safe driving degree of the driver from the driving history. When the safe driving degree judged by the second judging means is lower than a predetermined reference value, the extracting means has a safety degree higher than that of the standard control. A vehicle control system characterized by extracting high vehicle control information. 11. The vehicle control system according to claim 9 or 10, wherein it is further determined by the determination means or the second determination means that a safe driving degree is higher than the predetermined reference value. In this case, the vehicle control system further comprises second updating means for updating the driver information to information for selecting vehicle control information corresponding to the standard control or the control matching the driving preference of the driver. . 12. The vehicle control system according to claim 11, further comprising a writing unit that writes the driver information updated by the second updating unit into the recording medium. 13. The vehicle control system according to claim 1, further comprising an authenticating means for authenticating that the driver is a predetermined driving permitter or a new driving permitter. A vehicle control system for permitting starting of an engine of the vehicle only when the vehicle is authenticated. 14. A vehicle control system for realizing an in-vehicle driving environment according to a driver's taste, wherein the driving environment is changed from a portable recording medium in which driving environment information matching the driver's taste is recorded in advance. A vehicle control system comprising: a reading unit that reads information; and a control unit that adjusts and controls the driving environment of the vehicle based on the driving environment information read by the reading unit.