JP2008195231A - Vehicular unfamiliarity detecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular unfamiliarity countermeasure device capable of supporting operation by accurately detecting unfamiliarity of an occupant. <P>SOLUTION: This vehicular unfamiliarity detecting device 10 supports the occupant unfamiliar to a predetermined vehicle, and is characterized by having objects 13, 19, 20 and 24 being an operation object of the occupant, and an unfamiliarity detecting means 13a detecting unfamiliarity of the occupant when detecting operation of the objects 13, 19, 20 and 24. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle unfamiliarity detection device for detecting that a passenger is unfamiliar with a vehicle and assisting a passenger unfamiliar with the vehicle.

  The vehicle is equipped with various switches of the in-vehicle device and operation members for driving operation, but the occupant selects and operates the necessary operation member from these during driving, and is also used as an obstacle detection device. A device that satisfies tastes such as driving assistance devices and music performance. However, when the vehicle is operated for the first time or after a long time (hereinafter simply referred to as unfamiliarity), the operation method may be unclear. In order to resolve any unclear points, it may be possible to support the operation by displaying a manual or by voice guidance on the operation method, but if the passenger is familiar with the vehicle, the operation support will be troublesome, and the function will be used. If you don't, you don't need operational support. Therefore, in order to appropriately assist the driver with the operation, it is required to accurately detect that the passenger is unfamiliar with the vehicle.

As an example of unfamiliarity detection, there has been proposed a technique for detecting that the user is unfamiliar when operation of an operation member to be operated is delayed (see, for example, Patent Document 1). In Patent Document 1, when it is detected that the headlight is not turned on from the ignition on at night until a predetermined time elapses, the driver determines that he is unfamiliar with driving in the area, and changes the navigation guidance method.
JP 2005-291784 A

  However, the range of application is narrow in detecting unfamiliarity due to the unlit headlight from the ignition on at night until the predetermined time elapses, and it is detected that the user is unfamiliar with the elapsed time of the operation member to be operated. There is a problem that it is difficult to determine the start and end points of time measurement. For example, since the in-vehicle device is not always operated immediately after the occupant gets into the vehicle or immediately after the ignition is turned on, there is a high possibility that the elapsed time fluctuates regardless of whether or not the vehicle is unfamiliar with the vehicle.

  In view of the above problems, an object of the present invention is to provide a vehicle unfamiliarity countermeasure device that can detect an occupant's unfamiliarity and provide operational support.

  In view of the above problems, the present invention provides a vehicle unfamiliarity detection device for assisting an occupant unfamiliar with a predetermined vehicle, such as an object to be operated by the occupant (e.g., an operation manual providing device, a switch of an in-vehicle device), And an unfamiliarity detecting means for detecting an unfamiliarity of an occupant when an operation of the object is detected.

  According to the present invention, since the target for detecting unfamiliarity is limited, it is possible to detect unfamiliarity more reliably than the passage of time.

  The object is, for example, an operation manual. Further, unfamiliarity may be detected based on the viewing frequency of the operation manual.

  Further, in one embodiment of the present invention, the object is a switch of an in-vehicle device (for example, a switch of a navigation device, a switch of a room lamp, etc.) capable of traveling the vehicle without being operated. .

  According to the present invention, since unfamiliarity is detected from the switch operation of the in-vehicle device, it is possible to detect unfamiliarity more reliably than the passage of time.

  Further, in one aspect of the present invention, the unfamiliarity detection means detects the occupant's impatience when an operation of the object is detected, and a specific object different from the object (for example, seat position / angle adjustment, bonnet, etc. ), An unfamiliarization canceling determination unit that cancels the detection of the impatience is detected.

  According to the present invention, it is possible to detect the unfamiliarity with the detection configuration, and it is possible to cancel the detection of the impatience from the operation of the specific object.

  It is possible to provide a vehicle unfamiliarity countermeasure device capable of accurately detecting an occupant's unfamiliarity and supporting operation.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. The vehicle unfamiliarity countermeasure device 10 according to the present embodiment is a case where the driving performance of the vehicle including the first boarding is short, or when it is not the first time, but the boarding after a long time (hereinafter referred to as unfamiliarity). In addition, the signs are detected and operation is appropriately supported.

  FIG. 1 shows an example of a block diagram of a vehicle inexperience countermeasure device 10. The vehicle unfamiliarity countermeasure device 10 includes a meter ECU 11, an engine ECU 12, an operation manual providing device 13, an operation manual (database) DB 14, a body ECU 15, a courtesy switch 16, a seating sensor 17, a shift position sensor 18, and navigation as various in-vehicle devices. A device 19, a display device 20, a smart key system 21, an indoor camera 22, a voice input device 23, and the like are included.

  The meter ECU 11, the engine ECU 12, the operation manual providing device 13, the body ECU 15 and the navigation device 19 are a CPU for executing a program, a RAM for program execution, a RAM for temporarily storing data, and retains data even when the ignition is turned off. Flash memory (simply referred to as memory together with RAM), an input / output interface serving as a data interface, a communication controller communicating with other ECUs, a ROM storing programs, and the like are configured by a microcomputer connected by a bus.

  The vehicle unfamiliarity countermeasure device 10 detects the driver's unfamiliarity by detecting an operation history (hereinafter simply referred to as operation) of these various in-vehicle devices by the driver or operation. When the occupant is unfamiliar with the vehicle, it can indicate that the vehicle is unfamiliar with all the in-vehicle devices. Therefore, it is preferable that each in-vehicle device detects the operation of the occupant. In the present embodiment, the operation result of the in-vehicle device indicating unfamiliarity is transmitted to the operation manual providing device 13, but each in-vehicle device may detect inexperience and transmit the result to the operation manual providing device 13. You may transmit to other ECU.

  The operation manual providing device 13 includes an unfamiliarity detection unit 13a, an operation support unit 13b, and an unfamiliarization release determination unit 13c realized by a CPU executing a program. The unfamiliarity detection means 13a detects the unfamiliarity of the driver based on the operation of the in-vehicle device by the driver as described below. Further, the operation support means 13b performs appropriate operation support according to the content of the unfamiliarity detected when the unfamiliarity detection means 13a detects the unfamiliarity. The unfamiliarization cancellation determination unit 13c determines whether the occupant has become accustomed to the vehicle after detecting that it is inexperienced, and cancels the detection of the unfamiliarity.

  The in-vehicle device will be briefly described. There are various in-vehicle devices such as a steering wheel, a brake pedal, and an accelerator pedal that are indispensable for driving to those that support more comfortable driving. In this embodiment, the operation of the in-vehicle device that is not directly used for driving is mainly used. To detect inexperience.

  The meter ECU 11 displays a warning such as a vehicle state such as a travel distance, a speed and an engine speed, a half door, etc. on a meter of the instrument panel or lights a predetermined lamp to notify the driver. The engine ECU 12 is a microcomputer that executes basic control related to the engine such as fuel injection control and ignition timing control. In particular, in this embodiment, the engine ECU 12 provides detection information of ignition on / off to the unfamiliarity detection means 13a. The operation manual providing device 13 can provide operation information of the in-vehicle device to the occupant, and has an operation manual DB 14 that stores the in-vehicle device manual converted into electronic information. An operation manual extracted in response to the request of 13b is provided. It is preferable to store not only the operation manual but also, for example, a specification table, vehicle verification, and the like. The provision of the operation manual may be displayed on the display device 20 of the navigation device 19 or may be output by sound from a speaker. For example, the operation support unit 13b supports the operation of an in-vehicle device that the driver wants to operate but is unfamiliar with the operation members being lit in the operation order in order to guide the operation of the occupant.

  The body ECU 15 is connected to a switch 24 such as a headlight, a room lamp, or the like, and lights a lamp corresponding to the operation of the switch 24 and controls security such as a door lock. . The switch 24 is a general term for a switch that can be operated by an occupant rather than a switch of a specific in-vehicle device. The body ECU 15 lights the room lamp when the courtesy switch 16 is off, and outputs a half-door warning when the door is locked. The smart key system 21 detects an electronic key carried by the passenger, and when the start button is pressed, reads the ID code of the electronic key and performs authentication processing of the electronic key. When the electronic key is authenticated by the ID code, the engine ECU 12 is allowed to start the engine. The seating sensor 17 is a sensor that detects the seating of the occupant for each seat, and is used for measuring the time from the seating to the vehicle departure.

  The navigation device 19 detects the position of the host vehicle using the arrival time of radio waves from the artificial satellite, displays the position of the host vehicle on the road map extracted from the map database, and displays the position on the display device 20. When a destination is input, a route from the current location to the destination calculated in consideration of costs such as arrival time is displayed on the road map. The navigation device 19 can be operated by a remote control, voice input, or an operation panel formed on the display device 20. The display device 20 configured with liquid crystal or the like is a touch panel that detects a driver's operation on the operation panel using, for example, a touch sensor that uses a change in capacitance.

  The indoor camera 22 is, for example, a camera that is installed with the driver's seat facing the steering column and that captures a passenger's face image, and a camera that detects the movement of the passenger. For example, the degree of the occupant's face is detected by performing predetermined image processing on the occupant's face image, and the line-of-sight direction is further detected from the eyeball position or the like.

  The indoor camera 22 monitors the movement of the occupant by comparing pixel values between images. For example, when the change amount of the pixel value is large, it is detected that there are many unnecessary movements because the occupant is unfamiliar with the operation.

  The voice input device 23 is used to input an operation command of the navigation device 19 and detects the contents by voice analysis of passenger conversations and tweets. The shift position sensor 18 is a sensor that detects the operation position of the shift lever by the driver.

  Next, detection of unfamiliarity will be described. The unfamiliarity with the in-vehicle device can be detected by, for example, browsing the operation manual, trial and error of the operation of the switch 24, or the like.

[Detection of unfamiliar operations from boarding to vehicle start-up (during boarding)]
When an unfamiliar operation is detected between the time of boarding and the start of the vehicle, it can be estimated that although the driver wanted to start quickly, the driver was not accustomed to the vehicle and could not start. The unfamiliar operation is, for example, the following operation. When the following operation is detected, the unfamiliarity detection means 13a stores it in the memory as unfamiliar information.

A. As described above, in the smart key system 21, the engine can be started by pressing the start button of the engine without inserting the mechanical key into the key cylinder. Users who have used can sometimes try and error how to start the engine. In such a case, for example, the driver may try to extract the mechanical key from the smart key or may show an operation of searching for the insertion port by holding the smart key in hand. The smart key system 21 detects the driver's trial and error based on the strength of the smart key's radio wave, and outputs to the unfamiliar detection means 13a that the smart key has been handled.

B. Trial and error in navigation screen operation When riding an unfamiliar vehicle, the navigation device 19 and AV equipment operated via the navigation device 19 may be trial and error. In such a case, for example, the occupant's finger may hang around the display device 20 that is a touch panel or turn around the same place, indicating an operation that is confused by the operation method. In addition, the same screen may be displayed many times or the same operation may be performed again and again. The navigation device 19 detects such trial and error detected by the display device 20, and outputs to the unfamiliarity detection means 13a that there has been trial and error in the operation of the navigation screen.

C. Trial and error of switch 24 operation When riding in an unfamiliar vehicle, the switch 24 may be operated by trial and error to determine which switch 24 activates a desired function. In such a case, for example, the occupant may return to the original state immediately after pressing a certain switch 24 or may operate various switches 24 one after another. In addition, in an operation in which a predetermined switch 24 needs to be operated in order to realize a desired function (an operation with order), an operation interval between the plurality of switches 24 may be long. For example, the body ECU 15 detects such trial and error and outputs it to the unfamiliarity detection means 13a.

D. It takes a long time from opening the door to starting the vehicle. When riding in an unfamiliar vehicle, one of a series of operations until starting the vehicle, such as seat position determination, seat belt installation, engine start, room mirror position determination, shift lever operation, etc. It takes more time than a familiar vehicle. For example, when the time from the door opening or sitting detected by the courtesy switch 16 to the vehicle start is greater than or equal to a predetermined time, the body ECU 15 outputs the time to the unfamiliarity detection means 13a.

E. Reference to operation manuals, etc. When driving an unfamiliar vehicle, the passenger may refer to the operation manual, Help function, specification table, vehicle verification, etc., after getting on the vehicle until starting the vehicle. Referencing the operation manual is likely to be unfamiliar to the occupant at least in the function referred to, and referring to the specification table is to confirm the vehicle width and height that the driver should know. Therefore, there is a high possibility of being unfamiliar with the vehicle. The unfamiliarity detection means 13a stores the reference history together with the driver's reference items (function, specification table, etc.).

  In addition, when the operation is complicated or the operation of another function is unknown, the occupant may refer to the operation manual multiple times. In such a case, the possibility that the passenger is unfamiliar with the vehicle further increases. The unfamiliarity detection means 13a stores, for example, the number of times an operation manual or the like is referred to during one trip (from ignition off to on). Note that the number of times of reference to an operation manual or the like until the door of the driver's seat is opened or closed may be stored.

  In addition to referring to the operation manual or the like, the reference history may be stored when the operation manual related to the operated switch 24 is referenced within a predetermined time after the operation. Since such an operation manual is often referred to when an operation method is not known, the operation manual is often referred to. Therefore, there is a high possibility that an occupant is unfamiliar with at least the referenced function.

F. Speaking up to the start of the vehicle When operating an unfamiliar vehicle, if the desired switch 24 cannot be found or if the wrong switch 24 is operated, the driver is confused or dissatisfied There is. The unfamiliarity detection means 13a stores, for example, words such as “um”, “don't know”, and “XX switch” that are input from the voice input device 23.

  When the unfamiliarity detection means 13a detects that the occupant is unfamiliar with the vehicle based on the detection results such as A to F, the unfamiliarity detection unit 13a stores them in the memory as unfamiliar information. For example, unfamiliarity may be detected if at least one of A to F is detected, or unfamiliarity may be detected when two or more are detected within a predetermined time. Further, each item of A to F may be weighted, and unfamiliarity may be detected when the weighted point is equal to or greater than a predetermined value. For example, since the usage of the navigation device 19 is complicated, it is easy to detect unfamiliarity, but if the engine starting method is not known, the weighting is increased because there is a high possibility that it is actually the first time that the user gets on the vehicle.

  In addition, the degree of unfamiliarity with the driver may be defined according to the detection results of A to F, and the degree of unfamiliarity with the driver may be divided into levels (larger the level is less familiar). For example, the number of detected items A to F is set to an unfamiliar level as it is, or the weighted points are divided into several levels.

  Moreover, the unfamiliarity detection means 13a can improve the detection accuracy of unfamiliarity by providing an incidental condition for the detection of AF. For example, in the trial and error of the switch operation, the driver may perform the trial and error because the driver operates the switch 24 without viewing. Such trial and error may occur when the driver gets used to the vehicle and should not be detected as unfamiliar. Therefore, for example, when the driver's face direction obtained by the indoor camera 22 is not facing the switch 24 direction, the unfamiliarity detection unit 13a determines that the driver is familiar with the vehicle and does not detect unfamiliarity.

[Vehicle operation when unfamiliarity is detected]
When the unfamiliarity is detected, the operation support means 13b supports the occupant so as to compensate the occupant's unfamiliarity and operate the vehicle comfortably.

  For example, if an unfamiliar target such as A, E, and F is clear, the operation support means 13b controls the in-vehicle device so as to guide the occupant to the operation. In the case of A, since the engine starting method is unfamiliar, the operation support means 13b lights the engine start button or displays an operation manual for the engine starting method on the display device 20. In the case of E and F, since an unknown operation becomes clear from the referred operation manual or the content of the utterance, the operation support means 13b turns on the switch 24 of the operation or displays the operation manual of the operation. indicate.

  Further, when an unfamiliar target is not clear like B, C, and D, the operation support means 13b outputs to the voice and the display device 20 that the operation manual can be browsed. As a result, the driver is aware of the presence of the operation manual and can access the desired operation method of the switch 24.

  Moreover, you may set the control value of a vehicle-mounted apparatus for beginners irrespective of whether the object of unfamiliarity is clear. For example, the operation support means 13b is set to the maximum inter-vehicle distance in ACC (Adaptive Cruise Control), and is operated even in the case of ESC (Electric Stability Control) even when the switch 24 is off. When the driver resets the control value of ACC or ESC, it follows that the control value after resetting is that the driver's intention has been confirmed.

  In addition, regardless of whether the object of unfamiliarity is clear, the functions that can be provided by the vehicle can be introduced in a guidance manner. For example, the operation support means 13b is a function that is fundamentally different in the operation method for each vehicle, such as seat position determination, steering telescopic or tilt setting, explanation of pre-crash control, airbag installation position, etc. Briefly described. Further, an appropriate function may be described according to the traveling environment. For example, ACC will be explained when entering a car-only road, and ESC will be explained when driving on a road with many curves, so that it is possible to explain the functions in a timely manner by explaining necessary functions in necessary scenes.

  As described above, the operation support means 13b includes both operation support directly related to the operation in which unfamiliarity is detected and overall operation support for the in-vehicle device corresponding to the level of inexperience estimated from the operation in which unfamiliarity is detected. Can support operation.

[Release unfamiliarity detection]
Even when unfamiliarity with the vehicle is detected, the occupant gets used to the vehicle while operating the vehicle. Since the operation support after getting used to feel annoyance, it is preferable to cancel the detection of unfamiliarity early when familiarity is detected, but there is a great individual difference in how much you get used to. Therefore, an operation indicating that the user is used to the vehicle is detected to cancel the detection of the unfamiliarity.

  FIG. 2 shows an example of the relationship between detection of unfamiliarity and release conditions. For example, if the unfamiliarity cancellation determination unit 13c detects unfamiliarity due to, for example, A “the position of the smart key fluctuates”, and if the change in the position of the smart key is not detected at the next boarding, the driver gets used to the vehicle. As a result, the unfamiliarization cancellation determination unit 13c cancels the unfamiliarity. In addition, when unfamiliarity is detected by B “trial and error of navigation screen operation”, the unfamiliarity cancellation determination unit 13c cancels the unfamiliarity when trial and error is not detected in the navigation screen operation for a predetermined period. In addition, when unfamiliarity is detected by C “trial and error of switch operation”, the unfamiliarity cancellation determination unit 13c detects that no trial and error is detected in the switch operation for a predetermined period of time, or a series of operations until the vehicle departs without error within a predetermined time. Release the unfamiliarity when operated. In addition, when unfamiliarity is detected by D “the time from the door opening to the vehicle start is long”, the unfamiliarity cancellation determination unit 13c releases the unfamiliarity when the time from the door opening to the vehicle start is converged. In addition, when unfamiliarity is detected by E “reference to the operation manual”, the unfamiliarity release determination unit 13c releases the unfamiliarity when the operation switch 24 displayed in the operation manual is operated. That is, it is determined that the driver has learned the operation according to the operation manual. In addition, when unfamiliarity is detected by F “utterance until vehicle start”, the unfamiliarization canceling determination unit 13c cancels the unfamiliarity when the switch 24 of the operation that is unfamiliar with the content of the utterance is operated.

  Note that it may be troublesome if the unfamiliarity is not canceled until the next time the same function is used. Therefore, in any case of A to F, the unfamiliarity may be canceled when “other unfamiliarity is not detected during running”. Other unfamiliarity during traveling is trial and error of the switch 24 during traveling, excessive switching when the vehicle is stopped, etc., and if such unfamiliarity is not detected, the unfamiliarization cancellation determination unit 13c cancels the unfamiliarity. Can do.

  Further, when the degree of unfamiliarity is divided into levels, the unfamiliarization cancellation determination unit 13c may decrease the level one by one every time an operation satisfying the cancellation condition is detected, or the cancellation condition is weighted and detected. The level may be lowered discontinuously according to the released release condition.

  When the unfamiliarization cancellation determination unit 13c releases the unfamiliarity, the operation support unit 13b terminates the operation support that is directly related to the operation that has detected the unfamiliarity, and lowers the level of unfamiliarity and responds to the level. Switch to operation support. When the occupant is sufficiently accustomed to the vehicle, all operation support can be terminated.

[Determination / cancellation of impatience]
By the way, there may be a case where the above-mentioned occupant's unfamiliarity may be determined to be impatient. For example, when the driver is impatient with a delay in time, an operation such as A to F, particularly the operation of the navigation screen or the switch 24 may be a trial and error. Therefore, when the unfamiliarity detection means 13a detects an operation such as A to F, it may determine that this is impatience.

  When it is determined to be impatient, the operation support means 13b controls the in-vehicle device from the viewpoint of safety and environment. For example, in terms of safety, alerts / warnings by output of messages, music, etc., changes in vehicle control values such as throttle opening reduction (decreasing acceleration and vehicle speed) relative to accelerator opening, and impatience with surrounding vehicles In the case of environmental notice, the throttle opening is reduced with respect to the accelerator opening.

  In addition, since the driver's impatience is not permanent, safety and environmental vehicle control is canceled when the impatience state is resolved. The unfamiliarization release determining means 13c is considered to be not in a hurry or have a tendency to decrease when the hood is opened before boarding to check the amount of brake fluid, the amount of battery fluid, or adjust the seat angle. Therefore, the determination of the impatience state is canceled. In addition, when traveling, when other vehicles are allowed to interrupt, while traveling while maintaining a traveling lane, when the inter-vehicle distance is large, or when the stop is respected, the unfamiliarity cancellation determination means 13c determines the impatience state. Is released.

  FIG. 3 is a flowchart of a control procedure in which the vehicle unfamiliarity countermeasure device 10 cancels unfamiliarity detection, operation support, and unfamiliarity detection. The flowchart of FIG. 3 starts when the door is opened or unlocked, for example.

  When the door is opened or unlocked, the unfamiliarity detection means 13a determines whether there is an unfamiliar operation (S10).

  When an unfamiliar operation is not detected (No in S10), the process proceeds to the determination in step S50. When an unfamiliar operation is detected (Yes in S10), the unfamiliarity detection means 13a stores unfamiliar information based on the detected operation (S20). Therefore, the operation of the release condition becomes clear from the stored unfamiliar information.

  Next, the unfamiliarity detection means 13a determines the level of unfamiliarity using a technique such as weighting based on the unfamiliar information in step S20 and the previously stored unfamiliar information (S30).

  Next, the operation support means 13b executes operation support according to the unfamiliar information (S40). When different unfamiliar information is stored, the operation support means 13b sequentially controls the vehicle according to a predetermined priority order.

  Next, the unfamiliarization cancellation determination unit 13c determines whether or not an operation for a cancellation condition has been detected (S50). When the operation of the release condition is not detected (No in S50), the process is repeated from step S10.

  When the operation of the release condition is detected (Yes in S50), the unfamiliarity detection means 13a erases from the memory the unfamiliar information that can be released by the operation of the release condition (S60). In addition, since the unfamiliar information has changed, the unfamiliarity detection means 13a corrects the level of unfamiliarity (S70).

  Thereafter, the processing from step S10 is repeated, and operation support according to the unfamiliar information and level is executed until all the unfamiliar information is deleted (S40).

  As described above, since the vehicle unfamiliarity countermeasure device 10 according to the present embodiment detects the passenger's unfamiliarity from the operation of the in-vehicle device, for example, it is possible to detect the unfamiliarity more accurately than detecting the unfamiliarity only from the elapsed time.

  In the first embodiment, unfamiliarity is detected from the operation of the occupant mainly when getting on the vehicle. However, the driver's unfamiliarity can be further improved by adding prior information until boarding and driving information after starting the vehicle. It can be detected with high accuracy.

  FIG. 4 is a diagram for explaining the concept of detecting unfamiliarity with a driver based on prior information until boarding, an unfamiliar operation at the time of boarding, and driving information after starting the vehicle. In addition, since an unfamiliar operation at the time of boarding is the same as that of Example 1, description is abbreviate | omitted.

  Note that the vehicle 30 and the information center 40, the terminal 50, and the information center 40 in FIG. 4 are configured to be able to communicate wirelessly by connecting to a network such as a mobile phone network or a wireless LAN network. The vehicle 30 is a vehicle equipped with the vehicle unfamiliarity countermeasure device 10, and the terminal 50 is configured as a computer that transmits information for the driver to remotely operate the vehicle 30 to the information center 40. The information center 40 is a server (computer) that provides various services such as remotely operating the vehicle 30 via the vehicle 30 and the terminal 50 and transmitting information about the vehicle 30 to the terminal 40.

[Pre-familiar information until boarding]
Information for detecting that the occupant is unfamiliar as prior information until boarding is when the vehicle 30 is still new, or when riding a vehicle 30 that has rarely been rented, such as a rental car, car sharing, or a company-owned vehicle. Since unfamiliarity is determined by the combination of the vehicle 30 and the driver, the unfamiliarity detection means 13a requests the driver's identification information from the information center 40. In addition, the driver may be identified based on biometric information such as an ID code of a smart key and a vein when the vehicle is boarded.

  The unfamiliarity detection means 13a is used as a factor for detecting unfamiliarity as prior unfamiliarity information, for example, if the travel distance is less than a new vehicle.

  In addition to the travel distance, prior inexperience information may be detected based on whether or not a predetermined travel pattern has been achieved. Travel patterns can be used for various types of roads such as automobile roads, urban areas, mountain roads, narrow roads (separation), special operations such as garage parking, parallel parking, etc., driving in weather conditions such as rainy weather, nighttime, etc. is there. If these travel patterns have not traveled more than a predetermined distance or more than a predetermined distance even when the travel distance becomes greater than a predetermined distance, the unfamiliarity detection means 13a can detect prior unfamiliarity information.

  Further, when riding in a rental car, car sharing, company-owned vehicle, etc., the vehicle 30 side can acquire identification information such as a driver's license number at the stage of reservation or procedure. Therefore, whether the combination of the vehicle 30 and the driver's identification information selected at the reservation or procedure stage has been in the past, if so, how long it has been driven, and a long period of time since the last ride Whether or not the driver is unfamiliar with the vehicle 30 can be determined based on whether or not the vehicle is operating. When it is determined as unfamiliar, the unfamiliarity detection means 13a stores it as prior unfamiliar information.

[Unfamiliar information after boarding after boarding]
After boarding, the unfamiliar information after boarding is detected because it takes a long time to perform an operation that can be easily performed by the vehicle 30 that has been used, or the operation is repeated many times. For example, when turning over many times at a parking lot at home or work, the unfamiliarity detection means 13a detects unfamiliar information after boarding. It is clear from the own vehicle position detected by the navigation device 19 that the user is at home or work. In addition, although it can be detected in other parking lots as well, in the case of switching in an unfamiliar place, the determination threshold (number of times of switching) is set higher. Further, when compared with the locus of IPA (intelligent parking assist) or when the steering amount during the turnover is large, the unfamiliarity detection means 13a may detect unfamiliar information after boarding.

  Although some vehicles 30 are equipped with electric or foot type parking brakes, a driver accustomed to the side lever type vehicle 30 may become unfamiliar with the operation method of these parking brakes. Therefore, after stopping the vehicle, when the shift lever is put into parking but the parking brake is not operated and it is confirmed that the indoor camera 22 looks for the position of the parking brake, the unfamiliarity detecting means 13a detects the unfamiliar information after getting on the vehicle. .

[Level judgment of unfamiliarity level]
The unfamiliarity detection means 13a determines the level of unfamiliarity at any time according to the detection of prior unfamiliar information, unfamiliar information at the time of boarding, and unfamiliar information after boarding. In the level determination, for example, if the prior unfamiliar information is not detected and it is clear that the driver is accustomed to the vehicle, the level determination may not be performed.

  The unfamiliarity detection means 13a weights each of the prior unfamiliar information until boarding and the unfamiliar information at the time of boarding, and classifies the degree of unfamiliarity (for example, five levels). When the unfamiliarity information after boarding is detected after boarding, the unfamiliarity detection means 13a newly determines the level of unfamiliarity.

[Vehicle operation when unfamiliarity is detected]
When the unfamiliarity is detected, the operation support means 13b supports the occupant so that the occupant can be comfortably operated by compensating for the unfamiliarity of the occupant.

  As in the first embodiment, if it is detected that the user is unfamiliar with the operation, the switch 24 is turned on or an operation manual for the operation is displayed to assist the operation. Further, the operation support means 13b outputs to the voice or the display device 20 that the operation manual can be browsed, sets the control value of the in-vehicle device for beginners, and provides guidance on the functions that the vehicle 30 can provide. To introduce.

  In addition, for the inexperienced information after boarding, the operation support means 13b displays on the display device 20 that it is possible to support driving in garage and parallel parking, for example by IPA, or actually execute IPA. To do.

[Release unfamiliarity detection]
When an operation that is determined to be familiar with the vehicle 30 is detected, the unfamiliarization cancellation determination unit 13c cancels the detection of unfamiliarity according to the number of times, the duration, or the like. The prior unfamiliarity information is canceled when the travel distance becomes sufficient, or when it is clear from the detection of the release condition operation in FIG. 2 that the vehicle 30 is sufficiently accustomed even if the travel distance is not sufficient. be able to. The same applies to unfamiliar information when boarding.

  In addition, prior inexperienced information, inexperienced information at the time of riding, and inexperienced information after boarding, the operation amount and operating speed of each brake, accelerator, and steering are stabilized (converged to a certain range), and appropriate switching at the time of parking The unfamiliarization cancellation determination means 13c cancels the detection of unfamiliarity due to the vehicle 30 being parked in the amount, position (may be compared with IPA), or the like.

  Note that the greater the level of detected unfamiliarity is, the less the operation support is provided by releasing the level gradually. As a result, the level of unfamiliarity is raised again, and the operation support is resumed to give the driver a sense of incongruity, and an extreme increase or decrease in the operation support can be prevented.

  FIG. 5 shows a flowchart of a control procedure in which the vehicle unfamiliarity countermeasure device 10 cancels the prior unfamiliarity information, detection of unfamiliarity during boarding, operation support based on boarding amulet familiarity information, and detection of unfamiliarity. The flowchart in FIG. 5 starts with, for example, ignition on.

  The unfamiliarity detection means 13a determines whether prior unfamiliarity information has been detected (S1). Based on the driver identification information and biometric information transmitted from the information center 40, the unfamiliarity detecting means 13a determines whether or not prior unfamiliar information is detected.

  If the prior unfamiliar information is not detected (No in S1), the process is finished as it is because the vehicle 30 should be sufficiently accustomed. Thereby, the operation assistance by the detection of unfamiliar information is executed at the time of boarding or after boarding, and it can be prevented that the passenger feels bothered.

  When prior unfamiliar information is detected (Yes in S1), the unfamiliarity detection means 13a detects unfamiliar information at the time of boarding (S2). That is, unfamiliar information is detected based on trial and error of the switch 24, browsing of an operation manual, and the like.

  Next, when the vehicle 30 starts, the unfamiliarity detection means 13a determines the level of unfamiliarity based on the prior unfamiliar information and the unfamiliar information at the time of boarding (S3). Then, the operation support means 13b executes the operation support according to the prior unfamiliar information, the unfamiliar information at the time of boarding, and the level (S4).

  While performing the operation support, the unfamiliarity detection means 13a determines whether or not unfamiliar information is detected after boarding (S5). When unfamiliar information after boarding is detected (Yes in S5), the unfamiliarity detecting means 13a determines the level of unfamiliarity (S6), and the operation according to the prior unfamiliar information, the unfamiliar information at the time of boarding, the unfamiliar information after boarding, and the level Support is executed (S7).

  If unfamiliar information is not detected after boarding (No in S5), the unfamiliarization cancellation determination means 13c determines whether or not an operation for a cancellation condition has been detected (S8). When the operation of the release condition is not detected (No in S8), the operation support, the detection of unfamiliar information after boarding, and the detection of the release operation are repeated from step S4.

  When the operation of the release condition is detected (Yes in S8), the unfamiliarity detection means 13a erases the unfamiliar information that can be released by the operation of the release condition from the memory (S9), and the unfamiliar information has changed. The unfamiliarity detection means 13a corrects the level of unfamiliarity (S10).

  Thereafter, the processing from step S4 is repeated, and operation support according to the unfamiliar information and level is executed until all the unfamiliar information is deleted.

  In addition to the same effects as in the first embodiment, the vehicle unfamiliarization countermeasure device 10 according to the present embodiment detects an unfamiliarity of an occupant from before the boarding to after the boarding, and thus can detect the unfamiliarity with high accuracy. Also in this embodiment, the impatience may be detected in place of detection of unfamiliarity or detection of unfamiliarity.

It is an example of the block diagram of the inexperience measures apparatus for vehicles. It is a figure which shows an example of the relationship between the detection of unfamiliarity and cancellation conditions. It is a flowchart figure of the control procedure in which the unfamiliarization countermeasure apparatus for vehicles cancels the detection of unfamiliarity, operation support, and unfamiliarity detection. It is a figure for demonstrating the concept which detects a driver's unfamiliarity by prior information before boarding, an unfamiliar operation at the time of boarding, and driving information after starting a vehicle. It is a flowchart figure of the control procedure in which the unfamiliarity countermeasure apparatus for vehicles cancels the operation assistance based on prior unfamiliarity information, the detection of unfamiliarity at the time of boarding, the operation assistance based on boarding amulet familiarity information, and the detection of unfamiliarity.

Explanation of symbols

10 Vehicle Unfamiliarity Countermeasure Device 11 Meter ECU
12 Engine ECU
13 Operation Manual Providing Device 14 Operation Manual DB
15 Body ECU
16 Courtesy Switch 17 Seating Sensor 18 Shift Position Sensor 19 Navigation Device 20 Display Device 21 Smart Key System 22 Indoor Camera 23 Voice Input Device 24 Switch 30 Vehicle 40 Information Center

Claims (5)

In the vehicle unfamiliarity detection device for assisting a passenger unfamiliar with a predetermined vehicle
An object to be operated by the occupant,
An unfamiliarity detecting means for detecting an unfamiliarity of an occupant when an operation of the object is detected;
A vehicle unfamiliarity detection device characterized by comprising:   The vehicle unfamiliarity detection device according to claim 1, wherein the object is a device for providing an operation manual. The unfamiliarity detection means detects an unfamiliarity of an occupant when the number of times the operation manual is viewed in a predetermined period is greater than or equal to a predetermined number;
The unfamiliarity detection device for vehicles according to claim 2 characterized by things.   The vehicle unfamiliarity detection device according to claim 1, wherein the object is a switch of an in-vehicle device capable of traveling the vehicle without being operated. The unfamiliarity detecting means detects the impatience of the occupant when the operation of the object is detected,
Having an unfamiliarization release determining means for releasing detection of impatience when an operation of a specific object different from the object is detected;
The vehicle unfamiliarity detection device according to any one of claims 1 to 4.

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