JP2007193604A - Driver mental state determination system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driver mental state determination system for determining a mental state of a driver at high precision. <P>SOLUTION: The driver mental state determination system 1 for determining the mental state of the driver comprises driving operation detecting means 2, 3, and 4 for detecting driving operations of the driver; a driving scene discriminating means 5 for discriminating driving scenes; a memory means 5 for storing basic operations corresponding to the driving scenes; an operation time reduction detection means 5 for detecting reduction of the operation time at the discriminated driving scene by comparing the driving operations detected by the driving operation detecting means 2, 3, and 4 at the driving scene discriminated with the driving scene discriminating means 5 and the basic operations stored in the memory means 5; and a driver mental state determination means 5 for determining a mental state of the driver on the basis of the results for detecting reduction of the operation time in the operation time shortening detection means 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a driver psychological determination device that determines a driver's psychological state with high accuracy.

In order to improve safety during driving, various devices for determining a driver's psychological state such as impatience have been proposed. As this determination device, for example, the actual inter-vehicle distance with the preceding vehicle is compared with the basic inter-vehicle distance corresponding to the vehicle speed at that time (psychological condition determination standard), and the difference between the actual inter-vehicle distance and the basic inter-vehicle distance There is an apparatus for determining a psychological state based on the above (see Patent Document 1). In this device, when the actual inter-vehicle distance at a certain vehicle speed is shorter than the reference inter-vehicle distance necessary for ensuring safe driving, it is determined that the driver's psychological state is impatient.
JP 2003-51097 A

  The inter-vehicle distance from the preceding vehicle varies based on factors other than the driver's psychological state (for example, acceleration / deceleration of the preceding vehicle, traffic jam). Therefore, since the magnitude of the inter-vehicle distance does not always reflect only the psychological state of the driver of the host vehicle, the psychological state of the driver cannot be determined with high accuracy simply by the magnitude relationship of the inter-vehicle distance.

  Then, this invention makes it a subject to provide the driver | operator psychological determination apparatus which can determine a driver | operator's psychological state with high precision.

  A driver psychological determination device according to the present invention is a driver psychological determination device that determines a driver's psychological state, and a driving motion detection means that detects a driving motion of the driver, and a driving scene identification that identifies a driving scene. And means for storing the basic motion corresponding to the driving scene, and comparing the driving motion detected by the driving motion detecting means in the driving scene identified by the driving scene identifying means with the basic motion stored in the memory means And an operation time reduction detecting means for detecting a reduction in the operation time in the identified driving scene, and a driver psychology for determining a driver's psychological state based on a detection result of the operation time reduction in the operation time reduction detection means. And determining means.

  In this driver psychological judgment device, the driving scene is identified by the driving scene identification means. In the driver psychological judgment device, the driving motion of the driver performed in the identified driving scene is detected by the driving motion detection means. In the detection of this driving operation, at least information related to time such as the time of the entire driving operation, the time of each driving operation, the time between driving operations in a series of driving operations performed in the driving scene is acquired. Further, the driver psychological judgment device reads out the basic motion in the driving scene identified from the storage means. This basic operation is a basic driving operation that the driver should normally perform in each driving scene. At least the reference time of the entire series of driving operations to be performed in that driving scene, the reference time of each driving operation, the driving operation Contains information about time, such as the reference time between. In the driver psychological judgment device, the operation time shortening detection means compares the information on the time between the detected driving action and the stored basic action for each driving scene, and the detected driving action is compared with the basic action. To detect if the operating time is shortened. Further, in the driver psychological determination device, the driver's psychological state is determined by the driver psychological determination means from the detection result of shortening of the operation time. The driver's psychological state is clearly different between the case where the driver's driving operation is performed before and after the reference time, which is usually performed in a predetermined driving situation, and the case where the driver's driving operation is performed in a time shorter than the reference time. Yes. That is, when the driver is in a hurry compared with the driving operation that is normally performed, the driver's psychological state changes from the normal state. Accordingly, the psychological state of the driver can be accurately expressed to shorten the operation time of the driving operation in a predetermined driving scene. As described above, the driver psychological determination device can determine the driver's psychological state with high accuracy.

  In the above driver psychological judgment device of the present invention, the driving scene is a lane change scene, the operation time of the entire driving operation in the lane change, the shortening of the operation time of each driving operation in the lane change or the lane change It is good also as a structure which determines a driver | operator's psychological state based on shortening of the time between driving operation | movement.

  In this driver psychological judgment device, the lane change is identified by the driving scene identifying means. In the driver psychological determination device, the driving motion detection means detects the driving motion of the driver performed in the lane change. Further, the driver psychological judgment device reads out the basic motion in the lane change from the storage means. In the driver psychological determination device, the operation time shortening detection means compares the information related to the time between the detected driving operation in the lane change and the stored basic operation, and the detected driving operation is compared with the basic operation. It is detected whether the operation time of the entire operation is shortened, the operation time of each driving operation is shortened, or the time between driving operations is shortened. Further, in the driver psychological determination device, the driver psychological determination means determines the driver's psychological state from the detection result of the reduction of the operation time in the lane change. The lane change has various factors such as the flow of the vehicle in the own lane (vehicle speed), the presence / absence of other vehicles at the lane change destination, and the inter-vehicle distance between other vehicles, and the driving operation at that time is the blinker operation, safety confirmation operation, steering operation Various operations are required. Therefore, the driver's psychological state tends to appear in the driving operation in the lane change. Examples of the shortening of the operation time in the lane change include shortening of the operation time of the entire lane change, shortening of the steering operation time, and shortening of the time from the winker operation to the steering operation.

  In the above driver psychological judgment device of the present invention, the driving scene is a boarding scene, shortening the operating time of the entire driving operation in riding, shortening the operating time of individual driving actions in riding or between driving actions in riding It is good also as a structure which determines a driver | operator's psychological state based on shortening of time.

  In this driver psychological judgment device, the boarding is identified by the driving scene identifying means. In the driver psychological determination device, the operation of the driver performed on boarding is detected by the driving operation detecting means. Further, the driver psychological judgment device reads out the basic operation in the ride from the storage means. Then, in the driver psychological judgment device, the operation time shortening detection means compares the information related to the time between the detected driving action in the ride and the stored basic action, and the detected driving action is compared with the basic action. It is detected whether the overall operation time is shortened, the operation time of each driving operation is shortened, or the time between driving operations is shortened. Further, in the driver psychological determination device, the driver psychological determination means determines the driver's psychological state from the detection result of the reduction of the operation time. The boarding requires many operations (for example, seat belt attachment, engine start, safety confirmation operation, side brake release, shift operation, accelerator operation) to start after opening and closing the door. For this reason, the driver's psychological state is likely to appear in the driving operation when riding. Examples of shortening the operation time in boarding include shortening the opening and closing time of the door and shortening the entire time from when the door is opened until the vehicle starts.

  A driver psychological determination device according to the present invention is a driver psychological determination device that determines a driver's psychological state, and a driving motion detection means that detects a driving motion of the driver, and a driving scene identification that identifies a driving scene. And means for storing the basic motion corresponding to the driving scene, and comparing the driving motion detected by the driving motion detecting means in the driving scene identified by the driving scene identifying means with the basic motion stored in the memory means And an operation omission detecting means for detecting omission of the driving action in the identified driving scene, and a driver psychological judgment means for determining the psychological state of the driver based on the detection result of omission of the driving action in the operation omission detecting means. It is characterized by providing.

  In this driver psychological judgment device, the driving scene is identified by the driving scene identification means. In the driver psychological judgment device, the driving motion of the driver performed in the identified driving scene is detected by the driving motion detection means. In the detection of the driving operation, at least information of a series of driving operations performed in the driving scene is acquired. Further, the driver psychological judgment device reads out the basic motion in the driving scene identified from the storage means. This basic operation is a basic driving operation that a driver should normally perform in a predetermined driving scene, and includes at least information of a series of driving actions to be performed in the driving scene. In the driver psychological determination device, the detected driving action is compared with the stored basic action for each driving scene by the operating time shortening detection means, and the series of detected driving actions are omitted from the series of basic actions. It is detected whether there is a driving operation being performed (whether there is a driving operation that is not performed in a series of driving operations that must be performed in the driving scene). Further, in the driver psychological determination device, the driver psychological determination means determines the driver's psychological state from the detection result of the omission of the driving action. The driver's psychological state is clearly different when the driver is performing all the driving operations that should normally be performed in a predetermined driving scene and when not performing some of the driving operations. That is, when the driver does not perform the normal driving operation, the psychological state of the driver changes from the normal state. Therefore, the omission of the driving action in a predetermined driving scene accurately shows the driver's psychological state. As described above, the driver psychological determination device can determine the driver's psychological state with high accuracy.

  In the driver psychological determination device of the present invention, the driving scene is a lane change scene, and the driver's psychological state may be determined based on omission of the driving action in the lane change.

  In this driver psychological judgment device, the lane change is identified by the driving scene identifying means. In the driver psychological judgment device, the driver's motion performed in the lane change is detected by the driving motion detection means. Further, the driver psychological judgment device reads out the basic motion in the lane change from the storage means. In the driver psychological judgment device, the operation time shortening detection means compares each detected driving operation in the lane change with each stored basic operation, and all the driving operations that need to be performed in the lane change are performed. Detect. Furthermore, in the driver psychological determination device, the driver psychological determination means determines the driver's psychological state from the detection result of omission of the driving operation in the lane change. As described above, the driver's psychological state is likely to appear in the driving operation in the lane change. Examples of omission of driving operation in lane change include omission of blinker operation and omission of safety confirmation operation.

  In the driver psychological determination apparatus of the present invention, the driving scene is a vehicle starting scene, and the driver's psychological state may be determined based on omission of a driving operation necessary before starting the vehicle.

  In this driver psychological judgment device, the vehicle start is identified by the driving scene identifying means. In the driver psychological determination device, the driving motion detection means detects the driver's motion performed in starting the vehicle. Further, the driver psychological judgment device reads out the basic motion in starting the vehicle from the storage means. In the driver psychological determination device, the operation time shortening detection means compares each detected driving operation in the vehicle start with each stored basic operation, and all the driving operations that need to be performed in the vehicle start are performed. Detect. Further, in the driver psychological determination device, the driver's psychological state is determined by the driver psychological determination means from the detection result of the omission of the driving action at the start of the vehicle. Starting the vehicle requires a number of driving operations such as wearing a seat belt, starting the engine, checking safety, releasing the side brake, shifting, accelerating, and turning on the headlight when dark. Therefore, the driver's psychological state is likely to appear in the driving operation when the vehicle starts. Examples of omission of the driving operation in starting the vehicle include omission of wearing of a seat belt, omission of safety confirmation operation, and lighting of a headlight.

  In the driver psychological determination device of the present invention, the basic operation may be set based on the past driving operation of the driver.

  In this driver psychological judgment device, when the driving operation of the driver is detected for each driving scene, the driving operation is stored in the storage means as the driving operation in each driving scene. At this time, it is good to memorize | store the driving | operation operation | movement when it determines with a driver | operator's mental state being a normal state. And in a driver | operator psychology determination apparatus, a driver | operator's past driving | operation operation | movement is read from this memory | storage means as basic operation | movement of a predetermined driving | running | working scene, and a comparison and determination are performed. In this way, by using the driving operation normally performed by the driver as a basic operation, it is compared with the driving characteristics of each individual driver rather than the general driving characteristics. It can be determined with high accuracy.

  The driver psychological determination device of the present invention may be configured to determine that the driver is in a frustrated state when the operation time shortening detection means detects the shortening of the operation time or the operation omission detection means detects the omission of the driving action. .

  In this driver psychological determination device, when the driver psychological determination means detects that the operation time is shortened by the operation time reduction detection means or the omission of the driving action is detected by the movement omission detection means, it is determined that the driver is in a frustrated state. . When the driver is performing faster than the normal driving operation or when the normal driving operation is not performed, the driver is in a hurry and the driver's psychological state is determined to be impatient it can.

  The driving scenes are various driving scenes based on the actions of the driver in the vehicle. For example, getting on, getting off, starting, stopping, turning left / right, changing lanes, overtaking the vehicle, turning on / off lights, engine key There are operations, wiper operations, and car navigation operations. Driving operations are various operations from when the driver gets into the vehicle to when he gets off the vehicle. In addition to various driving operations, such as visual confirmation with a mirror, visual confirmation, mirror adjustment, seat adjustment, seat belt attachment, etc. Various operations are also included. Shortening the operating time includes reducing the overall time of a series of driving actions in a given driving scene, reducing the time of individual driving actions in a series of driving actions, and reducing the time between driving actions in a series of driving actions. .

  The present invention can determine the driver's psychological state with high accuracy by paying attention to the time related to the driving operation and the omission of the driving operation in various driving scenes.

  DESCRIPTION OF EMBODIMENTS Embodiments of a driver psychological determination device according to the present invention will be described below with reference to the drawings.

  In the present embodiment, the driver psychological determination device of the present invention is applied to a driver psychological determination device that determines a driver's rush state (impression state). The driver psychological determination device according to the present embodiment determines the rush state based on the driving operation performed by the driver corresponding to each driving scene.

  With reference to FIG.1 and FIG.2, the driver | operator psychology determination apparatus 1 which concerns on this Embodiment is demonstrated. FIG. 1 is a configuration diagram of a driver psychological determination device according to the present embodiment. FIG. 2 is a schematic diagram showing the start of lane change.

  The driver psychological judgment device 1 detects a series of actions of the driver in various driving scenes, and based on a comparison result between the detected series of actions and a series of actions (basic actions) normally performed by the driver. Determine the driver's rush state. For this purpose, the driver psychological determination device 1 includes a driver information recognition unit 2, an environment information recognition unit 3, a vehicle information recognition unit 4, and a quick determination ECU [Electronic Control Unit] 5. In the present embodiment, the driver information recognition unit 2, the environment information recognition unit 3, and the vehicle information recognition unit 4 correspond to the driving operation detection means described in the claims.

  The driver information recognition unit 2 includes a face orientation / line-of-sight recognition ECU 20 and the like. The face direction / line-of-sight recognition ECU 20 recognizes the driver's face direction and line of sight based on the captured image around the driver's face captured by the camera, and transmits the recognition information to the urgent determination ECU 5.

  The environmental information recognition unit 3 includes a front vehicle speed / distance recognition ECU 30, a rear vehicle speed / distance recognition ECU 31, a side vehicle speed / distance recognition ECU 32, a car navigation system 33, a white line recognition ECU 34, and the like. The forward vehicle vehicle speed / distance recognition ECU 30 determines whether there is a forward vehicle and the presence of the forward vehicle based on the image taken in front of the own vehicle captured by the camera or the radar information forward of the vehicle by the radar sensor. The vehicle speed and the distance to the preceding vehicle are recognized, and the recognition information is transmitted to the urgent determination ECU 5. The rear vehicle speed / distance recognition ECU 31 determines whether or not there is a rear vehicle on the basis of the captured image of the rear of the host vehicle captured by the camera or the radar information to the rear of the host vehicle by the radar sensor. The vehicle speed and the distance to the vehicle behind are recognized, and the recognition information is transmitted to the urgent determination ECU 5. In the side vehicle vehicle speed / distance recognition ECU 32, an image captured by the camera on the right side of the host vehicle and an image captured on the left side of the host vehicle, or radar information on the right side of the host vehicle and radar information on the left side of the host vehicle. If there is a right front vehicle, a left side vehicle, and a side vehicle, the vehicle speed of the side vehicle and the distance from the side vehicle are recognized, and the recognition information is sent to the urgent determination ECU 5. Send. In the side vehicle recognition, when a vehicle existing in a certain section before and after in the adjacent lane is recognized with reference to the own vehicle and two or more vehicles are recognized in the certain section, information on each vehicle is recognized. The car navigation system 33 is a system that performs detection of the current position and traveling direction of the host vehicle, route guidance to the destination, and the like, and transmits these pieces of information to the urgent determination ECU 5. Further, the car navigation system 33 detects the operation of the buttons for performing various car navigation settings, further detects the time between a plurality of button operations, and transmits the button operation information to the urgent determination ECU 5. . The white line recognition ECU 34 recognizes the left and right white lines of the lane in which the host vehicle is traveling based on the image captured in front of the host vehicle captured by the camera, and the positional relationship between the lane width and the position of the host vehicle and the left and right lanes (self Vehicle wobble) is recognized, and the recognized information is transmitted to the urgent determination ECU 5.

  The vehicle information recognition unit 4 includes a vehicle speed recognition ECU 40, a steering operation recognition ECU 41, a brake operation recognition ECU 42, a door operation recognition ECU 43, a winker operation recognition ECU 44, a wiper operation recognition ECU 45, a key operation recognition ECU 46, a shift operation recognition ECU 47, and a lamp operation. There is a recognition ECU 48 or the like. The vehicle speed recognition ECU 40 recognizes the vehicle speed of the host vehicle based on wheel speed information from the wheel speed sensor and transmits the recognized vehicle speed to the urgent determination ECU 5. The steering operation recognition ECU 41 detects the driver's operation to the steering wheel based on the steering angle by the steering angle sensor or the steering torque by the steering torque sensor, and the presence / absence of the steering operation, the operation start time, the operation end time, the operation speed. And the recognized steering operation information is transmitted to the ECU 5 in a hurry. The brake operation recognition ECU 42 determines whether or not the driver has operated the foot brake or the parking brake, the operation start time, and the operation end time based on the brake pedal depression information by the brake sensor and the parking brake ON / OFF information by the parking brake sensor. The operation speed is recognized, and the recognized brake operation information is immediately transmitted to the ECU 5. The door operation recognition ECU 43 recognizes the opening / closing time and opening / closing time of each door based on the door opening / closing information by the door sensor of each door, and transmits the recognized door operation information to the ECU 5 immediately. In the winker operation recognition ECU 44, the presence / absence of a right direction instruction, presence / absence of a left direction instruction, switch position change and change speed based on a direction instruction (right direction instruction on, left direction instruction on, off) input to the winker switch And the recognized winker operation information is urgently transmitted to the ECU 5. In the wiper operation recognition ECU 45, whether or not each mode is activated based on a wiper mode instruction (intermittent operation on, low speed operation on, high speed operation on, off, etc.) input to the wiper switch, switch position change and change speed, etc. And the recognized wiper operation information is transmitted to the ECU 5 in a hurry. The key operation recognition ECU 46 recognizes ON / OFF of each mode, switch position change and change speed based on instructions (ACC ON, IG ON, engine start, OFF) input to the engine key switch. The recognized key operation information is immediately transmitted to the ECU 5. The shift operation recognition ECU 47 recognizes the position of each shift position, the position change of the shift position and the speed of change based on the operation of the shift lever detected by the shift positioning sensor, and promptly sends the recognized shift operation information to the ECU 5. Send. In the lighting operation recognition ECU 48, lighting / extinguishing, switch position change and its change based on lighting instructions (vehicle width lamp on, low beam on, high beam on, off, etc.) input to lighting switches such as headlights. The speed and the like are recognized, and the recognized lighting operation information is quickly transmitted to the ECU 5.

  The urgent determination ECU 5 includes a CPU [Central Processing Unit], a ROM [Read Only Memory], a RAM [Random Access Memory], and the like. The urgent determination ECU 5 takes in the recognition information from the information recognition units 2, 3 and 4. The urgent determination ECU 5 detects a driving scene such as a lane change from each recognition information. Further, the urgent determination ECU 5 detects a driving action from each recognition information for each driving scene, and stores the detected driving action as a basic action when the driver is in a normal state. Further, the urgent determination ECU 5 compares the currently detected driving action with the stored basic action for each driving scene, and detects the difference between the detected driving action and the basic action. Further, the urgent determination ECU 5 determines whether or not the driver is in an urgent state (impression state) based on the difference. In the present embodiment, each process in the urgent determination ECU 5 corresponds to a driving scene identification unit, an operation time shortening detection unit, an operation omission detection unit, and a driver psychological determination unit described in the claims. The RAM in the determination ECU 5 corresponds to storage means described in the claims.

  The basic operation is a series of driving operations performed when the driver is in a normal state for each driving scene, and is stored in a predetermined area of the RAM. The basic operations to be stored are each driving operation performed in the driving scene, time required for the entire driving scene, interval time between a plurality of driving operations, operation time of each driving operation, and the like. The basic operation may be stored only once for each driving scene, may be stored a predetermined number of times, or may be stored every time. In the case of storing a plurality of times, a driving operation frequently performed for the driving operation performed by the driver is stored, and an averaged time for each time is stored.

  When the detected driving action is compared with the basic action, it can be determined that the driver is in a psychological state different from the normal state when the driver performs an action different from the normal action. In particular, when a driving operation is performed more quickly than usual, or when a driving operation performed normally is omitted, it can be estimated that the driver is impatient (having hurry ahead). When a driving operation is performed more quickly than usual, the time of the entire driving scene may be short, the interval time between driving operations may be short, or the time of each driving operation may be short. As a determination result of the psychological state, it may be determined whether the state is a normal state or a rush state, and the rush degree (impression level) may be determined in a plurality of stages from the degree of difference from the basic motion.

  The driving scene includes a driving scene consisting of a plurality of driving actions and a driving scene consisting of one driving action. Driving scenes composed of a plurality of driving operations include, for example, various settings in lane change, boarding (including starting), stopping, and car navigation. Examples of driving scenes composed of one driving operation include operation of engine keys, operation of various light switches, and operation of wiper switches. Hereinafter, a method for determining the rush state in each of these driving scenes will be described.

  First, referring to FIG. 2, lane change will be described as a driving scene. The urgent determination ECU 5 determines, as a lane change start condition, whether or not a direction instruction has been made based on information from the winker operation recognition ECU 44 or whether or not the vehicle has exceeded the white line based on information from the white line recognition ECU 34. Whether or not it is a direction instruction for changing lanes is based on the condition that there are a plurality of lanes from the map data of the car navigation system 33, there is no intersection in a certain section ahead. The urgent determination ECU 5 determines that the lane change is started when the direction instruction is turned on for the lane change or when the own vehicle exceeds the white line. Then, the urgent determination ECU 5 starts a timer when it is determined that the lane change is started.

  Then, in the urgent determination ECU 5, adjacent to the side on which the own vehicle is about to change lanes based on the information from the side vehicle vehicle speed / distance recognition ECU 32 (the side where the turn signal is indicated, the side where the own vehicle exceeds the white line) It is determined whether there are two or more other vehicles in a certain section before and after the lane. In the example of FIG. 2, the host vehicle V1 is about to change the lane to the left adjacent lane, the other vehicle V2 exists on the front side of the left adjacent lane, and the other vehicle V3 exists on the rear side. When it is determined that two or more other vehicles exist, the urgent determination ECU 5 determines that the own vehicle is about to interrupt another vehicle in the adjacent lane, and stores the current driving operation based on information from each ECU. To start. On the other hand, when it is determined that two or more other vehicles do not exist, it is not an interruption, and therefore the urgent determination ECU 5 does not store the driving operation.

  The urgent determination ECU 5 determines whether or not the direction instruction is ended based on the information from the winker operation recognition ECU 44 or whether the entire vehicle completely exceeds the white line based on the information from the white line recognition ECU 34 as the lane change end condition. judge. The urgent determination ECU 5 determines that the lane change is finished when the direction instruction is turned off because of the lane change or when the entire vehicle completely exceeds the white line. Then, the urgent determination ECU 5 stops the timer and also ends the storage of the current driving operation. In the storage of the driving operation, all the driving operations performed since the start of storage, the time required for the entire lane change, the interval time between the driving operations in the lane change, the operation time of each driving operation, etc. are stored. The urgent determination ECU 5 determines that the lane change is stopped when the direction instruction is turned off during the lane change or when the entire vehicle does not exceed the white line. Then, the urgent determination ECU 5 stops the timer and erases the stored driving operation.

  When the interrupted lane change is completed, the urgent determination ECU 5 reads the basic operation in the lane change from a predetermined area of the RAM, and compares the series of driving operations performed this time with the basic operation in the lane change. Basic operations in changing lanes include, for example, turning direction indications at the start of the turn signal and turning off at the end, safety checks using the rear view mirror and side mirror, visual safety checks, and steering inputs using the steering wheel. The time required for the entire lane change, the interval time between driving operations, and the operating time of each driving operation are included. In the comparison, in this series of driving actions and basic actions, whether or not all the driving actions in the basic actions have been performed, the time difference of the entire lane change time, the time difference of the interval time between each driving action, the driving action Detection of the time difference between individual operation times.

  Then, the urgent determination ECU 5 determines whether the driver is in the normal state or in the urgent state (impressed state) based on the comparison result. The urgent determination ECU 5 determines that the driver is in the urgent state when it is clearly different from the driving operation at the time of lane change that the driver normally performs. For example, when it is determined that the vehicle is in an urgent state, for example, when the entire time for changing the lane is shorter than usual, when the time from the direction indication by the blinker to the start of the steering operation (starting the lane change) is shorter than usual, the steering is usually performed. When the operation time is short, the direction indication by the blinker is not performed, or the safety confirmation operation such as the backward confirmation is not performed. When the driver determines that the vehicle is in the normal state, the urgent determination ECU 5 stores the current driving operation as a basic operation in the lane change in a predetermined area of the RAM.

  Next, boarding (including starting) will be described as a driving scene. The urgent determination ECU 5 determines whether or not the door is unlocked based on information from the door operation recognition ECU 43 as a boarding start condition. The urgent determination ECU 5 determines that the boarding has started when the door is unlocked. The urgent determination ECU 5 starts a timer from the time when it is determined that the door is unlocked, and stores the current driving operation based on information from each ECU.

  Then, the urgent determination ECU 5 determines whether or not the own vehicle has started based on information from the vehicle speed recognition ECU 40 as an end condition from boarding to starting. The urgent determination ECU 5 determines that the start of the vehicle has been completed after the vehicle has started. Then, the urgent determination ECU 5 stops the timer and also ends the storage of the current driving operation. The urgent determination ECU 5 determines that the vehicle has been stopped when the vehicle has not started. Then, the urgent determination ECU 5 stops the timer and erases the stored driving operation.

  When the vehicle is finished up to the start, the urgent determination ECU 5 reads the basic operation in the boarding (until the start) from a predetermined area of the RAM, and compares the series of driving operations performed this time with the basic operation in the boarding. Basic operations from getting on and off are, for example, opening and closing of doors, wearing of seat belts, engine start by engine key operation, brake operation, parking brake release, safety confirmation by rearview mirror and side mirror and visual safety confirmation, accelerator operation If necessary, it includes a driving operation to be performed such as lighting of a headlight or a wiper start, a time required from the start of the ride to the start, an interval time between driving operations, and an operation time of each driving operation.

  Then, the urgent determination ECU 5 determines whether the driver is in the normal state or in the urgent state (impressed state) based on the comparison result. The urgent determination ECU 5 determines the urgent state when the driver is clearly different from the driving operation at the time of departure from the normal ride. For example, when it is determined that it is in an urgent state, for example, when the overall time from when the door is unlocked until the vehicle starts is shorter, when the door opening and closing time is shorter than usual, the engine key operation time is shorter than usual. Is a case where the seat belt is not worn, a safety confirmation operation such as a backward confirmation is not performed, or a headlight is not turned on when necessary. When the driver determines that the vehicle is in the normal state, the urgent determination ECU 5 stores the current driving operation as a basic operation in boarding (including starting) in a predetermined area of the RAM.

  Next, a description will be given of a stop at a red light as a driving scene. The urgent determination ECU 5 determines whether or not the host vehicle has stopped based on information from the vehicle speed recognition ECU 40 as a start condition at the time of stop. The urgent determination ECU 5 determines that the vehicle is stopped when the vehicle stops. Then, the urgent determination ECU 5 starts the timer from the time of the stop, and stores the current driving operation based on information from each ECU.

  The urgent determination ECU 5 determines whether or not the host vehicle has started based on information from the vehicle speed recognition ECU 40 as an end condition at the time of stopping. The urgent determination ECU 5 determines that the stop time has ended when the vehicle has started. Then, the urgent determination ECU 5 stops the timer and also ends the storage of the current driving operation.

  When the stop is completed, the urgent determination ECU 5 reads the basic operation at the time of stop from a predetermined area of the RAM, and compares the series of operation performed this time with the basic operation at the time of stop. Basic operations at the time of stopping include, for example, turning off and turning on headlights, shifting to neutral or parking and driving, parking brake operation and release, foot brake release and operation, etc. Behavior is included.

  Then, the urgent determination ECU 5 determines whether the driver is in the normal state or in the urgent state (impressed state) based on the comparison result. The urgent determination ECU 5 determines that the state is urgent when it is clearly different from the driving operation at the time of stopping that the driver normally performs. Examples of the case where the state is determined to be in a rush state include a case where the headlight is not turned off, a shift operation is not performed, and a parking brake operation is not performed. When the driver determines that the vehicle is in a normal state, the urgent determination ECU 5 stores the current driving operation as a basic operation at the time of stopping in a predetermined area of the RAM.

  Next, various settings in car navigation such as a destination as a driving scene will be described. The urgent determination ECU 5 determines whether or not the setting is started based on information from the car navigation system 33 as a start condition for various settings in the car navigation. If it is determined that the setting in the car navigation has started, the urgent determination ECU 5 starts the timer from the time when the first operation input is determined and stores the current setting operation based on the information from the car navigation system 33. To do.

  The urgent determination ECU 5 determines whether or not the setting is completed based on information from the car navigation system 33 as an end condition for various settings in the car navigation. When the urgent determination ECU 5 determines that the setting has been completed, the timer is stopped and the storage of the current setting operation is also terminated. If it is determined that the setting has been stopped halfway, the urgent determination ECU 5 stops the timer and deletes the stored setting operation.

  When the setting is completed, the urgent determination ECU 5 reads the basic operation in the car navigation setting from a predetermined area of the RAM, and compares the series of setting operations performed this time with the basic operation in the car navigation setting. The basic operations in this setting include, for example, a series of button operations when setting a destination and the like, a time required for the entire setting from start to end, and an interval time between button operations.

  Then, the urgent determination ECU 5 determines whether the driver is in the normal state or in the urgent state (impressed state) based on the comparison result. The urgent determination ECU 5 determines that the state is urgent when it is clearly different from the button operation at the time of setting in the car navigation that the driver normally performs. As a case where it is determined that the state is in a rush state, for example, the entire setting time is short, or the interval time between button operations is short. When the driver determines that the vehicle is in the normal state, the urgent determination ECU 5 stores the current driving operation as a basic operation in the car navigation setting in a predetermined area of the RAM.

  Next, an engine key operation will be described as a driving scene. The urgent determination ECU 5 detects a key position change based on information from the key operation recognition ECU 46 and determines whether or not an engine key operation has been performed. The urgent determination ECU 5 starts a timer when the engine key operation starts, and stops the timer when the operation with the engine key ends. In this way, when the driving scene consists of one driving operation such as engine key operation or various switch operations, the time from when the key or switch position changes to when it stops (that is, the speed at which the position changes) is detected. To do.

  When the operation of the engine key is completed, the urgent determination ECU 5 reads the operation time of the engine key in the basic operation from a predetermined area of the RAM, and compares the operation time of the engine key performed this time with the operation time of the engine key in the basic operation. To do. Then, the urgent determination ECU 5 determines whether the driver is in the normal state or in the urgent state (impressed state) based on the difference in operation time. If the current operation time is faster than the basic operation, the urgent determination ECU 5 determines that the driver is in an impatient state. When the difference between the current operation time and the basic operation is within a predetermined range, the urgent determination ECU 5 determines that the driver is in a normal state, and stores the current operation time as the operation time in the basic operation in a predetermined area of the RAM.

  In addition, as for operation scenes, the operation state of various switches such as a light switch, a wiper switch, and an air conditioner switch can be determined based on the operation time, similarly to the operation of the engine key.

  Next, the wiper operation according to the rain condition as a driving scene will be described. The urgent determination ECU 5 determines from the information from the wiper operation recognition ECU 45 whether the wiper is started when it starts to rain or whether the wiper is stopped when the rain stops. After a predetermined time has elapsed, the urgent determination ECU 5 determines whether the driver is in a normal state or in an urgent state (impressed state) based on whether or not the necessary wiper operation is performed when it rains or stops. To do. Here, the basic operation is a wiper start operation that needs to be performed when it rains, or a wiper stop start operation that needs to be performed when the rain stops. When the wiper is not started when it starts to rain or when the wiper is not stopped when the rain stops, the urgent determination ECU 5 determines that the driver is in an impatient state. When the wiper is started when it starts to rain or when the wiper is stopped when the rain stops, the urgent determination ECU 5 determines that the driver is in a normal state. Whether or not it is raining uses raindrop detection information by a raindrop sensor.

  In addition, driving operations that are usually performed depending on the situation include turning on the headlights when entering the tunnel, turning off the headlights when exiting the tunnel, direction indication by the blinker when turning left and right, riding There are seat belts etc. when you are doing. In these cases, the impatience state can be determined depending on whether or not the driving operation is performed according to the situation.

  When the driver psychological determination device 1 determines the urgent state, the information is used to improve safety. For example, in the case of an urgent state, the driver recognizes that the state is in an urgent state, generates a message and a display image for prompting safe driving, and outputs them to a speaker and a display, or causes the vehicle to support a driving support system ( If a pre-crash safety system, adaptive cruise control system, lane keep system, etc.) are installed, an instruction signal for changing the control timing is transmitted.

  According to the driver psychological determination device 1, it is possible to determine the driver's rush state (impression state) with high accuracy by comparing driving operations in various driving scenes with basic operations in the driving scenes. it can. In particular, the driver psychological determination device 1 sets a driving operation that is normally performed when the driver is in a normal state as a basic operation, thereby making a determination with higher accuracy according to the driving characteristics of each driver. be able to. In addition, since the driver psychological determination device 1 performs comparison determination using two patterns of time related to driving operation and omission of driving operation, it is possible to determine the rush state for various driving scenes.

  The driver psychological determination device 1 performs the comparison determination as a driving scene from lane change or boarding to start by an interruption in which the driver's psychological state is likely to appear, so that the determination can be made with higher accuracy. In addition, the driver psychological determination device 1 can easily determine the rush state even from a driving scene including a single driving operation such as a switch operation.

  Furthermore, safety can be improved by determining the urgent state in the driver psychological determination apparatus 1 and using the determination result with high accuracy.

  As mentioned above, although embodiment which concerns on this invention was described, this invention is implemented in various forms, without being limited to the said embodiment.

  For example, in the present embodiment, it is configured to determine the rush state (impression state) as the driver's psychological state, but may be configured to determine other psychological states.

  Further, in the present embodiment, the driving operation in each driving scene in the normal state of the driver is stored, and the state of rushing is determined by comparing with the driving operation in the past normal state of each individual driver. However, a configuration may be adopted in which a general driving operation in a predetermined driving scene is stored, and the urgent state is determined by comparison with the general driving operation.

  Moreover, although this embodiment demonstrated the determination of the rush state about several driving scenes, it is applicable also to another driving scene. For example, the lane change in the case of an interruption has been described, but the lane change in the case of no interruption can also be applied, and the case from the boarding to the start has been described, but it can also be applied to only the boarding operation or the starting operation. .

It is a block diagram of the driver | operator psychological determination apparatus which concerns on this Embodiment. It is a schematic diagram which shows the time of a lane change start.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Driver psychological determination apparatus, 2 ... Driver information recognition part, 3 ... Environmental information recognition part, 4 ... Vehicle information recognition part, 5 ... Early determination ECU, 20 ... Face direction and line-of-sight recognition ECU, 30 ... Forward vehicle vehicle speed Distance recognition ECU 31 ... Backward vehicle speed / distance recognition ECU 32 ... Side vehicle speed / distance recognition ECU 33 ... Car navigation system 34 ... White line recognition ECU 40 ... Vehicle speed recognition ECU 41 ... Steering operation recognition ECU , 42 ... Brake operation recognition ECU, 43 ... Door operation recognition ECU, 44 ... Winker operation recognition ECU, 45 ... Wiper operation recognition ECU, 46 ... Key operation recognition ECU, 47 ... Shift operation recognition ECU, 48 ... Lights operation recognition ECU

Claims (8)

A driver psychological determination device for determining a driver's psychological state,
Driving operation detection means for detecting the driving operation of the driver;
Driving scene identification means for identifying the driving scene;
Storage means for storing basic operations corresponding to driving scenes;
The driving action detected by the driving action detecting means in the driving scene identified by the driving scene identifying means is compared with the basic action stored in the storage means, and the shortening of the operating time in the identified driving scene is detected. An operation time shortening detection means;
A driver psychological determination device, comprising: a driver psychological determination unit that determines a driver's psychological state based on a detection result of a reduction in the operational time by the operational time reduction detection unit. The driving scene is a lane change scene,
It is characterized in that the psychological state of the driver is determined based on the shortening of the operation time of the entire driving operation in the lane change, the shortening of the operation time of the individual driving operation in the lane change or the shortening of the time between the driving operations in the lane change. The driver psychological determination device according to claim 1. The driving scene is a boarding scene,
The psychological state of the driver is determined based on shortening of the operation time of the entire driving operation in boarding, shortening of the operating time of individual driving operations in boarding or shortening of the time between driving operations in boarding. 1. The driver psychological determination device according to 1. A driver psychological determination device for determining a driver's psychological state,
Driving operation detection means for detecting the driving operation of the driver;
Driving scene identification means for identifying the driving scene;
Storage means for storing basic operations corresponding to driving scenes;
The driving action detected by the driving action detection means in the driving scene identified by the driving scene identification means is compared with the basic action stored in the storage means, and the omission of the driving action in the identified driving scene is detected. An action omission detection means;
A driver psychological determination device comprising: a driver psychological determination unit that determines a psychological state of the driver based on a detection result of the omission of the driving operation by the operation omitted detection unit. The driving scene is a lane change scene,
5. The driver psychological determination device according to claim 4, wherein the psychological state of the driver is determined based on omission of the driving operation in the lane change. The driving scene is a scene of vehicle start,
5. The driver psychological determination device according to claim 4, wherein the psychological state of the driver is determined based on omission of a driving operation necessary before starting the vehicle.   The driver's psychology determination device according to any one of claims 1 to 6, wherein the basic operation is set based on a past driving operation of the driver. 8. The method according to claim 1, wherein when the operation time shortening detection unit detects a shortening of the operation time or the operation omission detection unit detects an omission of a driving operation, the driver determines that the driver is in a dry state. The driver psychological determination apparatus described in any one of the items.

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