JP6565571B2 - Vehicle diagnostic system and method - Google Patents

Description

  The present invention relates to a vehicle diagnosis system and method.

  As a vehicle diagnosis system, vehicle state data such as tire air pressure is acquired from a vehicle state detection unit such as a tire air pressure detection unit, and the presence / absence of an abnormality in the vehicle state such as tire air pressure is determined based on the vehicle state data. A proposal message corresponding to the result is output to the user, and then it is determined whether the word issued by the user represents a positive meaning or a negative meaning, and the proposal message corresponding to the determination result is displayed to the user. Are output (see, for example, Patent Document 1).

JP 2005-162121 A

  However, in the above-described vehicle diagnostic system, vehicle state data is always acquired, so that there is a problem that the information processing load increases.

  The problem to be solved by the present invention is to provide a vehicle diagnosis system and method capable of reducing the load of information processing.

  The present invention solves the above-mentioned problem by recognizing a phrase from a voice uttered by a user of the vehicle and acquiring information used for failure diagnosis from the vehicle by increasing the number of acquisitions when the predetermined phrase is recognized. To do.

  According to the present invention, when a user of a vehicle utters a phrase that recalls an abnormality in a target location for failure diagnosis, the information used for failure diagnosis is acquired from the vehicle by increasing the number of acquisitions. The load can be reduced.

It is a schematic diagram showing a vehicle maintenance information management system of one embodiment. It is a block diagram of the vehicle maintenance information management system shown in FIG. It is a figure which shows an example of diagnostic analysis information and repair guidance information. It is a figure which shows an example of the correspondence of the phrase contained in phrase information, and the apparatus in which abnormality occurred. It is a flowchart which shows an example of the control by the terminal device shown in FIG. It is a flowchart which shows an example of the control by the failure diagnosis server shown in FIG. It is a figure which shows an example of the correspondence of the phrase contained in phrase information, the apparatus with which abnormality generate | occur | produced, and the certainty of abnormality occurrence. It is a figure which shows an example of the correspondence of the phrase contained in phrase information, and the certainty of abnormality occurrence. It is a flowchart which shows 1st Example of control by the failure diagnosis server shown in FIG. It is a flowchart which shows 1st Example of control by the failure diagnosis server shown in FIG. It is a flowchart which shows 2nd Example of control by the failure diagnosis server shown in FIG. It is a flowchart which shows 2nd Example of control by the failure diagnosis server shown in FIG.

  Hereinafter, a vehicle maintenance information management system according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing an outline of the configuration of the vehicle maintenance information management system of the present embodiment. As shown in FIG. 1, the vehicle maintenance information management system according to the embodiment of the present invention includes a terminal device 100 used by a vehicle user, an in-vehicle device 1000 mounted on the vehicle, and a failure diagnosis server 200. . The failure diagnosis server 200, the terminal device 100, and the in-vehicle device 1000 can communicate with each other directly or via another device. The terminal device 100 may be configured as a device mounted on a vehicle, for example, or may be configured as a portable multifunction terminal device such as a smartphone. In FIG. 1, only one vehicle is shown for convenience, but the actual vehicle maintenance information management system according to the present embodiment is configured such that the failure diagnosis server 200 includes a terminal device 100 and an in-vehicle device in a plurality of vehicles. 1000 to communicate with each other.

  As shown in FIG. 1, the vehicle controller 2 of the in-vehicle device 1000 has a self-diagnosis device 21, code information such as a DTC code (Diagnostic trouble code) indicating an abnormality of various on-vehicle devices, and failure in signal transmission / reception. Self-diagnosis information including information such as Fail Flag data is detected. Fail Flag data is information indicating that the original functions of various devices cannot be performed. In the present embodiment, the terminal device 100 acquires the above-described self-diagnosis information from the in-vehicle device 1000.

  As shown in FIG. 1, the terminal device 100 mounted on each vehicle sends data relating to the function of the vehicle including the acquired code information and / or Fail Flag data to the failure diagnosis server 200. The failure diagnosis server 200 accumulates various data collected from each terminal device 100 mounted on a plurality of vehicles in the database 230 for each vehicle. The failure diagnosis server 200 processes various collected data and sends the obtained information to the terminal device 100 used by the user.

  FIG. 2 is a diagram illustrating an example of a specific configuration of the vehicle maintenance information management system. As shown in FIG. 2, in the vehicle maintenance information management system according to the present embodiment, the terminal device 100, the failure diagnosis server 200, and the in-vehicle device 1000 are connected via a communication network 3000 so as to communicate with each other.

  Hereinafter, each apparatus which comprises a vehicle maintenance information management system is demonstrated. First, the in-vehicle device 1000 of this embodiment will be described. The in-vehicle device 1000 of the present embodiment includes all devices mounted on the vehicle. In the present embodiment, the communication device 1 that communicates with the outside, the vehicle controller 2 that controls the overall control of the in-vehicle device 1000, A drive control device 3 including an internal combustion engine that controls the driving of the vehicle, a driving motor, an automatic transmission, and a brake device; a steering device 4 that controls the steering amount, steering direction, and steering speed of the vehicle; A sensor 5 that detects travel state information, a camera 6 that captures an image of the interior of the vehicle interior and the exterior of the vehicle, a navigation device 7 that searches the travel route of the vehicle and guides the user, and travel that supports the travel of the vehicle A support device 8, an output device 9 that presents information to a user of the vehicle, and a phrase information acquisition device 1100 that acquires information of a phrase uttered by the user. Each device described above can exchange information via an in-vehicle communication network such as a CAN (Controller Area Network). In addition, the apparatus which comprises the vehicle-mounted apparatus 1000 of this embodiment is not specifically limited, Apparatuses known at the time of application, such as an air conditioning apparatus, an audio apparatus, a drive recorder, etc. are suitably employ | adopted as the vehicle-mounted apparatus 1000 of this embodiment. Can do.

  The vehicle controller 2 of the in-vehicle device 1000 according to the present embodiment is a computer that realizes a function of harmonizing the operation state of each device mounted on the vehicle. The vehicle controller 2 of this embodiment includes a self-diagnosis device 21. The self-diagnosis device 21 monitors the operation state of each device mounted on the host vehicle, and outputs the above-described self-diagnosis information when the occurrence of an abnormality (including failure and failure; the same applies hereinafter) is detected. The self-diagnosis device 21 of the present embodiment may be OBD (: On board diagnostics) known at the time of filing.

  The sensor 5 of the present embodiment includes a vehicle speed sensor 51, a rudder angle sensor 52, a posture sensor 53 that detects the posture of the vehicle, an obstacle sensor 54 such as sonar, a temperature sensor 55, a wattmeter 56, and the like. The vehicle speed information detected by the vehicle speed sensor 51 and the steering angle information detected by the steering angle sensor 52 are used for vehicle drive control, vehicle travel support, and the like. Similarly, the posture information of the vehicle detected by the posture sensor 53 is used for vehicle drive control, vehicle driving support, and the like. The vehicle attitude information includes a yaw angle and a pitch angle. The obstacle information detected by the obstacle sensor 54 is used for processing for controlling driving and steering of the vehicle so as to avoid approaching the obstacle. The information on the passenger compartment temperature and the outside air temperature detected by the temperature sensor 55 and the information on the air-conditioner power consumption detected by the power meter 56 are used for failure diagnosis of the air-conditioner.

  Image information acquired by the camera 6 of the present embodiment is used in an around view monitor (registered trademark) function. Further, the image information is used for detecting an obstacle, detecting a traveling lane of the host vehicle, detecting a tracking target of the host vehicle, character recognition such as a road sign, and the like.

  The driving support device 8 of the present embodiment includes an ABS (anti-blocked braking system: the same applies hereinafter) device 81, a TCS (tracking control system: the same applies hereinafter) device 82, and a VDC. (Vehicle Dynamics Control) device 83, obstacle detection device 84, lane recognition device 85, and automatic driving assistance device 86 are included.

  The output device 9 of this embodiment includes a display 91 and a speaker 92. The output device 9 presents the vehicle diagnosis result and instruction information for dealing with the diagnosis result to the vehicle user. The output device 9 may use an indicator such as a lamp or a vibration device (vibrator) provided on a seat or a handle instead of or in addition to the display 91 or the speaker 92. By making the vibration mode of the handle different, diagnosis results and instruction information may be easily identified and presented.

  The phrase information acquisition device 1100 of this embodiment includes a sound collection device 1101 and a phrase recognition device 1102. The sound collection device 1101 is provided in the vehicle interior, and collects sound emitted by the user of the vehicle in the vehicle interior. The phrase recognition device 1102 stores predetermined words such as “hot”, “cold”, “broken”, “funny”, and voice information corresponding to the predetermined phrases in association with each other. By analyzing the audio information output from the sound device 1101, a predetermined word or phrase issued by the user of the vehicle is recognized.

Next, the terminal device 100 used by the vehicle user will be described.
The terminal device 100 according to the present embodiment includes a control device 10, a communication device 20, and an output device 30. The terminal device 100 transmits and receives information to and from the external in-vehicle device 1000 and the failure diagnosis server 200 via the communication device 20. The output device 30 includes a display 31 and a speaker 32. Note that the output device 30 may use an indicator such as a lamp or a vibration device (vibrator) instead of or in addition to the display 31 or the speaker 32. By changing the blinking mode or vibration mode of the lamp, Diagnosis results and instruction information may be simply identified and presented.

  The control device 10 of the terminal device 100 according to the present embodiment includes a ROM (Read Only Memory) 12 in which a program for acquiring vehicle self-diagnosis information and detailed information to be described later is stored, and the ROM 12 stores the program. A CPU (Central Processing Unit) 11 including an operation circuit for executing a program and a RAM (Random Access Memory) 13 functioning as a rewritable storage device are provided.

  The control device 10 of the terminal device 100 is a computer having a diagnostic information acquisition function, a phrase information acquisition function, a detailed information acquisition function, and an output function. The terminal device 100 realizes each function by cooperation of software for realizing the above function and the above-described hardware.

  Below, each function which the control apparatus 10 of the terminal device 100 implement | achieves is each demonstrated.

  First, the diagnostic information acquisition function of the control device 10 will be described. The control apparatus 10 of the terminal device 100 of this embodiment acquires the self-diagnosis information of a vehicle with a diagnostic information acquisition function. The self-diagnosis information is information that is output from the self-diagnosis device 21 included in the vehicle controller 2 of the in-vehicle device 1000 described above, and includes information that identifies the device in which the abnormality is detected, code information that indicates the content of the abnormality, and the like. It is. The self-diagnosis information may include information on the number of occurrences of the detected abnormality, information on the occurrence frequency, and the like. The control device 10 according to the present embodiment acquires such self-diagnosis information at a predetermined cycle, and each time the self-diagnosis information is acquired, the self-diagnosis information is acquired by the communication device 20 of the terminal device 100 using the failure diagnosis server. 200. As the predetermined cycle, for example, a time such as one hour may be set, or a timing at which an ignition key switch of a vehicle (meaning a main power switch in an electric vehicle; the same applies hereinafter) is turned on. Alternatively, the timing immediately before the ignition key switch of the vehicle is turned off may be set. The self-diagnosis information may be acquired at an appropriate cycle in consideration of the communication cost, the storage capacity of the failure diagnosis server 200 or the terminal device 100, and the like.

  Next, the phrase information acquisition function of the control device 10 will be described. The control apparatus 10 of the terminal device 100 of this embodiment acquires the phrase information which the user of the vehicle emitted by the phrase information acquisition function. The phrase information is information output by the phrase information acquisition apparatus 1100 of the above-described in-vehicle apparatus 1000, and includes information on a predetermined phrase such as “hot”, “cold”, “broken”, or “funny”. . The control device 10 according to the present embodiment sends the phrase information to the failure diagnosis server 200 by the communication device 20 of the terminal device 100 every time such phrase information is acquired.

  Next, the detailed information acquisition function of the control device 10 will be described. The control device 10 of the terminal device 100 according to the present embodiment acquires detailed information related to the usage status of the in-vehicle device to be diagnosed by the detailed information acquisition function. Note that the detailed information is information output by the sensor 5 of the in-vehicle device 1000 described above, for example, detailed information on the use status of the air conditioner (set temperature, vehicle interior temperature, outside temperature, power consumption of the air conditioner, etc.), etc. Is included. The control device 10 of this embodiment acquires detailed information from the sensor 5 of the in-vehicle device 1000 and transmits it to the failure diagnosis server 200 every time a request signal for detailed information is transmitted from the failure diagnosis server 200.

  In the present embodiment, when the self-diagnosis information is transmitted from the terminal device 100, the failure diagnosis server 200 is mounted on the vehicle as a failure diagnosis target based on the self-diagnosis information transmitted from the terminal device 100, as will be described later. Determines whether or not a device failure (failure or precursor of failure) has occurred, and includes information related to the failure of the in-vehicle device subject to failure diagnosis and information related to repair of the in-vehicle device subject to failure diagnosis, according to the determination result Guide information is transmitted to the terminal device 100.

  Further, in the present embodiment, when the phrase information is transmitted from the terminal device 100, the failure diagnosis server 200 provides detailed information regarding the usage status of the in-vehicle device targeted for failure diagnosis corresponding to the phrase information, as will be described later. Based on the detailed information requested from the terminal device 100 and transmitted from the terminal device 100, it is determined whether or not a failure (failure or precursor of failure) of the in-vehicle device subject to failure diagnosis has occurred, and the failure is determined according to the determination result. Guidance information including information related to the failure of the in-vehicle device to be diagnosed and information related to repair of the in-vehicle device to be diagnosed is transmitted to the terminal device 100.

  Next, the output function of the control device 10 will be described. The control device 10 of the terminal device 100 according to the present embodiment outputs the guide information transmitted from the failure diagnosis server 200 by the output device 30 using the output function. Specifically, the control device 10 displays the guidance information on the display 31 of the output device 30 or outputs the guidance information from the speaker 32 of the output device 30 by voice. Further, as described above, an indicator such as a lamp or a vibration device (vibrator) may be used instead of or in addition to the display 31 and the speaker 32, and diagnosis is performed by making the lamp blinking mode and vibration mode different. Results and instruction information may be simply identified and presented.

  The terminal device 100 of this embodiment operates as described above.

Next, the failure diagnosis server 200 of this embodiment will be described.
The failure diagnosis server 200 of this embodiment includes a control device 210, a communication device 220, and a database 230. The failure diagnosis server 200 transmits / receives information to / from the external in-vehicle device 1000 and the terminal device 100 via the communication device 220.

  The control device 210 of the failure diagnosis server 200 according to the present embodiment is rewritable with a ROM 212 that stores a program for analyzing the state of the vehicle and a CPU 211 that includes an operation circuit that executes the program stored in the ROM 12. RAM 213 functioning as a storage device.

  The control device 210 of the failure diagnosis server 200 includes a diagnosis information acquisition function, a phrase information acquisition function, a first failure diagnosis function, a second failure diagnosis function, a repair information generation function, and a presentation function. It is a computer. The control device 210 of the failure diagnosis server 200 realizes each function by cooperation of software for realizing the above function and the hardware described above.

  Hereinafter, each function realized by the control device 210 of the failure diagnosis server 200 will be described.

  First, the diagnostic information acquisition function of the control device 210 will be described. The control device 210 of the failure diagnosis server 200 according to the present embodiment acquires self-diagnosis information of each vehicle from each terminal device 100 mounted on a plurality of vehicles, and stores the collected various data in the database 230 for each vehicle. accumulate.

  Next, the phrase information acquisition function of the control device 210 will be described. The control device 210 of the failure diagnosis server 200 according to the present embodiment obtains word information that is information on a word issued by a user of each vehicle from each terminal device 100 mounted on a plurality of vehicles.

  Next, the first failure diagnosis function of the control device 210 will be described. The control device 210 of the failure diagnosis server 200 according to the present embodiment refers to a map in which self-diagnosis information of a vehicle is associated with information on a failure or the like (failure or a precursor of failure) of an in-vehicle device targeted for failure diagnosis, From the acquired self-diagnosis information, the occurrence of a failure or the like of the in-vehicle device subject to failure diagnosis is detected, and diagnostic analysis information 2121 (see FIG. 3) indicating the content of the failure or the like of the in-vehicle device subject to failure diagnosis is generated. Note that a map in which the vehicle self-diagnosis information is associated with information on the failure of the in-vehicle device to be diagnosed is stored in the ROM 212 of the control device 210 in advance.

  Here, FIG. 3 is a diagram illustrating an example of the diagnostic analysis information 2121 generated by the control device 210. For example, as shown in FIG. 3, the diagnostic analysis information 2121 according to the present embodiment is capable of operating any of the functions such as the breakdown of the vehicle, specifically, the functions of the device included in the vehicle. Information such as which function is inoperable.

  In this embodiment, for example, the control device 210 is based on the self-diagnosis information acquired from the terminal device 100, the communication device 1, the vehicle controller 2, the drive control device 3, the steering device 4, each sensor 5, the camera 6, the navigation. For each of the device 7, the driving support device 8, and the output device 9, an operable function and an inoperable function are determined, and diagnostic analysis information 2121 as shown in FIG. 3 is generated according to the determination result. . In the present embodiment, an example is shown in which the diagnostic analysis information 2121 includes information on operable functions and information on functions that cannot be operated, but the diagnostic analysis information 2121 includes either one of the information. May only be included. Moreover, when there are a plurality of functions as in the driving support device 8, it is possible to determine an operable function and an inoperable function for each of the driving support devices 81 to 86. Similarly, for the sensor 5, the operable function and the inoperable function can be determined for each of the sensors 51 to 54.

  Next, the second failure diagnosis function of the control device 210 will be described. The control device 210 of the failure diagnosis server 200 according to the present embodiment refers to a map in which the phrase information is associated with the detailed information on the usage status of the in-vehicle device that is the failure diagnosis target, and the detailed information corresponding to the acquired phrase information Is transmitted to the terminal device 100. Note that a map in which the phrase information is associated with the detailed information related to the usage status of the in-vehicle device to be diagnosed is stored in the ROM 212 of the control device 210 in advance.

  Here, FIG. 4 is a diagram illustrating an example of a correspondence relationship between a phrase included in the phrase information and a device in which an abnormality has occurred. In the present embodiment, for example, as shown in FIG. 4, the control device 210 uses “air conditioner”, “cooler”, “heating”, “wind”, “cold”, “hot”, “ineffective” for the phrase information. ”Is specified, the device where the abnormality has occurred is identified as“ air conditioner ”, and detailed information on the usage status of the air conditioner (setting temperature, cabin temperature, outside temperature, air conditioner power consumption, etc.) The requested signal is transmitted to the terminal device 100. Note that the control device 210 identifies a device in which an abnormality has occurred by combining a plurality of words such as “air conditioner” and “not working”, “heating” and “cold”, or “headlamp” or “ A device having an abnormality is identified by a single phrase such as “brake lamp”.

  The control device 210 of the failure diagnosis server 200 according to the present embodiment, when the detailed information regarding the usage status of the in-vehicle device subject to failure diagnosis is transmitted from the terminal device 100, the detailed information regarding the usage status of the in-vehicle device subject to failure diagnosis, Referring to the map that is associated with information on the failure etc. of the in-vehicle device subject to failure diagnosis (failure or precursor of failure), detect the occurrence of failure etc. of the in-vehicle device subject to failure diagnosis from the acquired detailed information, Diagnosis analysis information 2121 (see FIG. 3) indicating the content of a failure or the like of the in-vehicle device subject to failure diagnosis is generated. Note that a map in which detailed information related to the usage status of the in-vehicle device subject to failure diagnosis and information related to the failure of the in-vehicle device subject to failure diagnosis are associated with each other is stored in the ROM 212 of the control device 210 in advance.

  Next, the repair information generation function of the control device 210 will be described. The control device 210 of the failure diagnosis server 200 according to the present embodiment generates repair information 2122 indicating information related to vehicle repair. As the repair information 2122, for example, as shown in FIG. 3, “Please enter the dealer. Repair and parts need to be replaced. The parts will be received by X / Y / Y. If you can enter the store, you can repair it on the same day. ”,“ Please call the dealer. ”,“ Function Q does not work, but there is no need for immediate repair and there is no problem with normal driving. ” Can be mentioned.

  Next, the presentation function of the control device 210 will be described. The control device 210 of the failure diagnosis server 200 according to the present embodiment uses the diagnosis analysis information 2121 generated by the failure diagnosis function and the repair information 2122 generated by the repair information generation function as guidance information to the terminal device 100 or the in-vehicle device 1000. Send. The transmitted information is output by the output device 30 of the terminal device 100 or the output device 9 of the in-vehicle device 1000.

  Here, a specific example in which guidance information is presented to the user by the presentation function of the control device 210 will be described. For example, when the vehicle is an electric vehicle equipped with a battery and the abnormality of the voltage of the battery mounted on the vehicle is detected by the self-diagnosis device 21 of the in-vehicle device 1000, the vehicle is first acquired by the self-diagnosis device 21. Code information indicating abnormal battery voltage is transmitted to the failure diagnosis server 200 via the terminal device 100. Next, the failure diagnosis server 200 generates diagnosis analysis information 2121 and repair information 2122 based on the information transmitted from the terminal device 100. The repair information 2122 includes, for example, information such as “Please enter the dealer. Battery needs to be repaired and parts need to be replaced.” Then, the failure diagnosis server 200 transmits such diagnosis analysis information 2121 and repair information 2122 to the terminal device 100 or the in-vehicle device 1000 as guidance information.

  The failure diagnosis server 200 of this embodiment operates as described above.

  Subsequently, a control procedure of the terminal device 100 according to the present embodiment will be described with reference to a flowchart of FIG.

  First, in step S11, the control device 10 of the terminal device 100 determines whether or not a predetermined period has elapsed. If it is determined in step S11 that the predetermined period has elapsed, in step S12, the control device 10 acquires vehicle self-diagnosis information from the vehicle controller 2 of the in-vehicle device 1000. The predetermined period in step S11 corresponds to the above-mentioned predetermined cycle, and may be set to a time such as one hour, the timing when the vehicle ignition key switch is turned on, the vehicle ignition key, or the like. A timing immediately before the switch is turned off may be set.

  In step S <b> 13, the control device 10 of the terminal device 100 transmits the self-diagnosis information acquired in step S <b> 12 to the failure diagnosis server 200 via the communication device 20. Then, the process proceeds to step S19.

  On the other hand, when it is determined in step 11 that the predetermined period has not elapsed, in step S14, the control device 10 determines whether or not the phrase information has been acquired from the phrase information acquisition device 1100 of the in-vehicle device 1000. To do. If it is determined in step S14 that the phrase information has not been acquired, the process returns to step S11. On the other hand, if it is determined in step S14 that the phrase information has been acquired, in step S15, the control device 10 transmits the phrase information acquired in step S14 to the failure diagnosis server 200 via the communication device 20. .

  In step S <b> 16, when the detailed information request signal described above is transmitted from the failure diagnosis server 200, the control device 10 of the terminal device 100 receives the request signal. In step S <b> 17, the control device 10 acquires detailed information included in the request signal received in step S <b> 16 from the sensor 5 of the in-vehicle device 1000. In step S18, the control device 10 transmits the detailed information acquired in step S17 to the failure diagnosis server 200 via the communication device 20.

  In step S <b> 19, when the above-described guidance information (information including diagnostic analysis information 2121 and repair information 2122) is transmitted from the failure diagnosis server 200, the control device 10 of the terminal device 100 receives the guidance information.

  In step S20, the control device 10 of the terminal device 100 outputs the guidance information received in step S19 by the output device 30 of the terminal device 100. For example, the control device 10 displays the guidance information on the display 31 of the output device 30 or outputs the guidance information from the speaker 32 of the output device 30 by voice.

  In step S21, the control device 10 of the terminal device 100 determines whether or not the ignition key switch of the vehicle has been turned off by the user. For example, the control device 10 communicates with the in-vehicle device 1000 at regular intervals, and when the user turns off the ignition key switch of the vehicle, the control device 10 receives the information from the in-vehicle device 1000, thereby making the above determination. Do. If it is determined in step S21 that the ignition key switch of the vehicle has been turned off, this process is terminated. On the other hand, if it is determined in step S21 that the ignition key switch of the vehicle is not turned OFF, the process returns to step S11 and the processes of steps S11 to S20 are repeated.

  Subsequently, a control procedure of the failure diagnosis server 200 of the present embodiment will be described with reference to the flowchart of FIG.

  First, in step S <b> 31, the control device 210 of the failure diagnosis server 200 determines whether or not the vehicle self-diagnosis information has been acquired from the terminal device 100 via the communication device 220. The self-diagnosis information is acquired from the in-vehicle device 1000 by the terminal device 100 communicating with the in-vehicle device 1000.

  If it is determined in step S31 that the self-diagnosis information has been acquired, in step S32, the control device 210 of the failure diagnosis server 200 detects a failure (failure or failure) in the vehicle based on the self-diagnosis information acquired in step S31. It is determined whether or not a sign of failure has occurred. As a method for determining whether or not a failure or the like has occurred in the vehicle, for example, as described above, the control device 210 includes the vehicle self-diagnosis information and the information on the failure or the like of the vehicle-mounted device targeted for failure diagnosis. A method of referring to the associated map can be mentioned. If it is determined in step S32 that a failure or the like has occurred in the vehicle, the process proceeds to step S37. On the other hand, if it is determined in step S32 that no failure or the like has occurred in the vehicle, the process returns to step S31.

  If it is determined in step S31 that the self-diagnosis information has not been acquired, in step S33, the control device 210 determines whether or not the phrase information has been acquired from the terminal device 100 via the communication device 220. To do. The phrase information is acquired from the phrase information acquisition device 1100 of the in-vehicle device 1000 by the terminal device 100 communicating with the in-vehicle device 1000.

  If it is determined in step S33 that the phrase information has not been acquired, the process returns to step S31. On the other hand, when it is determined in step S33 that the phrase information has been acquired, in step S34, the control device 210 of the failure diagnosis server 200 determines the failure diagnosis target in-vehicle device corresponding to the phrase information acquired in step S33. A signal requesting detailed information regarding the usage status is transmitted to the terminal device 100. As a method for selecting the detailed information corresponding to the phrase information, for example, as described above, the control device 210 uses a map in which the phrase information is associated with the detailed information on the usage status of the in-vehicle apparatus subject to failure diagnosis. The method to refer is mentioned.

  In step S <b> 35, the control device 210 of the failure diagnosis server 200 acquires detailed information regarding the usage status of the in-vehicle device targeted for failure diagnosis from the terminal device 100 via the communication device 220. The detailed information is acquired from the in-vehicle device 1000 by the terminal device 100 communicating with the in-vehicle device 1000.

  In step S36, the control device 210 of the failure diagnosis server 200 detects a failure (a failure or a sign of failure) in the failure diagnosis target in-vehicle device based on the detailed information on the usage status of the failure diagnosis target in-vehicle device acquired in step S35. Or the like is determined. As a method for determining whether or not a failure or the like has occurred in the vehicle, for example, as described above, the control device 210 uses the detailed information on the usage status of the in-vehicle device subject to failure diagnosis and the in-vehicle device subject to failure diagnosis. There is a method of referring to a map in which information relating to a failure or the like is associated. If it is determined in step S36 that a failure or the like has occurred in the vehicle, the process proceeds to step S37. On the other hand, if it is determined in step S36 that no failure or the like has occurred in the vehicle, the process returns to step S31.

  In step S37, the control device 210 of the failure diagnosis server 200 generates diagnosis analysis information 2121 relating to a vehicle failure or the like based on the determination result in step S32 or step S36.

  In step S38, the control device 210 of the failure diagnosis server 200 generates repair information 2122 as shown in FIG. Then, the control device 210 generates guide information including such repair information 2122 and the diagnostic analysis information 2121 generated in step 37.

  In step S39, the control device 210 of the failure diagnosis server 200 presents the guidance information generated in step S38 to the terminal device 100 or the in-vehicle device 1000 through the communication device 220.

  Since the vehicle maintenance information management system according to the embodiment of the present invention is configured and operates as described above, the following effects can be obtained.

  The vehicle maintenance information management system according to the present embodiment acquires information used for failure diagnosis by increasing the number of acquisitions when a predetermined word / phrase is recognized from a voice uttered by a user of the vehicle. That is, the vehicle maintenance information management system of the present embodiment does not always acquire a large amount of information used for failure diagnosis, but when a vehicle user issues a phrase that recalls an abnormality of the in-vehicle device targeted for failure diagnosis, Information used for diagnosis is acquired by increasing the number of acquisitions. Therefore, the information processing load can be reduced, and the cost required for system construction can be reduced.

  Next, a first embodiment of a method for acquiring data used for failure diagnosis will be described. In the present embodiment, the certainty of occurrence of abnormality of the in-vehicle device subject to failure diagnosis is determined according to the phrase information, and the number of information used for failure diagnosis is changed according to this certainty.

  Below, the function which the control apparatus 10 of the terminal device 100 of a present Example implement | achieves is demonstrated.

  In addition to acquiring the vehicle self-diagnosis information at a predetermined cycle by the diagnostic information acquisition function, the control device 10 of the terminal device 100 according to the present embodiment adds the “air conditioner to the phrase information acquired by the phrase information acquisition function”. When a word with a high certainty of occurrence of abnormality such as “broken” (hereinafter referred to as level A) is included, the self-diagnosis information of the vehicle is acquired by the diagnosis information acquisition function.

  On the other hand, the control device 10 of the terminal device 100 according to the present embodiment has an intermediate level (hereinafter referred to as B level) or a low level (hereinafter referred to as C level) where the certainty of occurrence of abnormality is included in the phrase information acquired by the phrase information acquisition function. ) Is included, the detailed information acquisition function acquires detailed information on the usage status of the in-vehicle device subject to failure diagnosis. Here, the number N1 of detailed information acquired by the detailed information acquisition function when the certainty of occurrence of abnormality is B level is the number of detailed information acquired by the detailed information acquisition function when the certainty of occurrence of abnormality is C level. It is set to be smaller than the number of data N2.

  FIG. 7 is a diagram illustrating an example of a correspondence relationship between a phrase (a phrase recognized from the occupant's voice) included in the phrase information, a device in which an abnormality has occurred, and the certainty of occurrence of the abnormality. FIG. 8 is a diagram illustrating an example of a correspondence relationship between a phrase included in the phrase information and the certainty of occurrence of abnormality. In the correspondence relationship of this example, the words and phrases recognized from the occupant voice are defined by being classified according to the degree of certainty of occurrence of abnormality. The A level where the certainty of occurrence of abnormality is high includes phrases that directly express the occurrence of abnormality (for example, “(the air conditioner) is not working”, “(the blinker) is not lit”). The B level in which the certainty of occurrence of abnormality is relatively lower than the A level includes a phrase (for example, “(headlamp) is dark”) that indirectly represents the occurrence of abnormality. Further, the C level in which the certainty of occurrence of the abnormality is relatively lower than the B level includes a phrase that predicts the occurrence of the abnormality (for example, “(the activation of each device is slow)”).

  In the present embodiment, for example, when the phrase information includes the phrases “air conditioner” and “not working”, the control device 210 identifies the apparatus in which an abnormality has occurred as “air conditioner” (see FIG. 7). ), The certainty of occurrence of abnormality is determined to be A level based on the phrase “ineffective” (see FIG. 8). In this case, the control device 210 acquires vehicle self-diagnosis information.

  On the other hand, in the present embodiment, for example, when the phrase information includes the phrases “cooler” and “hot”, the control device 210 identifies the apparatus in which the abnormality has occurred as “air conditioner” and “hot”. Is determined to be B level (see FIG. 7). In this case, the control device 210 acquires detailed information of the number of data N1, which is smaller than when the certainty of occurrence of abnormality is the C level. For example, when the certainty of occurrence of an abnormality in an air conditioner is C level, information on the set temperature, the cabin temperature, the outside air temperature, and the air conditioner power consumption is acquired as detailed information, whereas the certainty of occurrence of an abnormality in the air conditioner is acquired. When the degree is B level, only the information on the power consumption of the air conditioner is acquired as the detailed information.

  Further, in the present embodiment, for example, when the phrase information includes the words “heating” and “suspicious”, the control device 210 identifies the apparatus in which the abnormality has occurred as “air conditioner” (see FIG. 7). ), The certainty of occurrence of abnormality is determined to be C level based on the phrase “suspicious” (see FIG. 8). In this case, the control device 210 acquires detailed information of the number of data N2, which is larger than when the certainty of occurrence of abnormality is the B level.

  Next, the control procedure of the failure diagnosis server 200 of this example will be described with reference to the flowcharts of FIGS. 9 and 10. Note that steps S31 to S33 and S37 to S39 are the same as steps S31 to S33 and S37 to S39 described in the above-described embodiment, and therefore, repetitive description is omitted and the description of the above-described embodiment is used. .

  If it is determined in step S33 that the word / phrase information has been acquired, in step S41, the controller 210 of the failure diagnosis server 200 determines whether the abnormality certainty level corresponding to the word / phrase information acquired in step S33 is A level. Determine whether or not. If it is determined in step S41 that the degree of abnormality is A level, the process proceeds to step S42. On the other hand, when it is determined in step S41 that the abnormality certainty is not at the A level, the process proceeds to step S43 shown in FIG.

  In step S <b> 42, the control device 210 of the failure diagnosis server 200 acquires vehicle self-diagnosis information from the terminal device 100. Next, the process proceeds to step S32, and the control device 210 determines whether or not a failure (failure or a sign of failure) has occurred in the vehicle based on the self-diagnosis information acquired in step S42.

  In step S43, the control device 210 of the failure diagnosis server 200 determines whether the abnormality certainty level corresponding to the phrase information received in step S33 is the B level or the C level. If it is determined in step S43 that the abnormality certainty level is B level, in step S44, the control device 210 transmits a request signal for detailed information of the number of data N1 (<N2) to the terminal device 100. On the other hand, if it is determined in step S43 that the abnormality certainty level is C level, in step S45, the control device 210 transmits a request signal for detailed information of the number of data N2 to the terminal device 100.

  Subsequent to steps S44 and S45, in step S46, the control device 210 of the failure diagnosis server 200 acquires detailed information on the number of data N1 or N2 from the terminal device 100 via the communication device 220.

  Next, in step S47 shown in FIG. 9, the control device 210 of the failure diagnosis server 200 detects a failure (failure or failure failure) on the in-vehicle device subject to failure diagnosis based on the detailed information on the number of data N1 or N2 acquired in step S49. It is determined whether or not a sign is generated. If it is determined in step S47 that a failure or the like has occurred in the vehicle, the process proceeds to step S37. On the other hand, if it is determined in step S47 that no failure or the like has occurred in the vehicle, the process returns to step S31.

  Since the vehicle maintenance information management system according to the first embodiment of the present invention is configured and operates as described above, the following effects can be obtained.

  The vehicle maintenance information management system according to the present embodiment determines the number of pieces of information used for failure diagnosis according to a phrase recognized by the phrase recognition apparatus 1102 when a predetermined phrase is recognized by the phrase recognition apparatus 1102. . For example, as described above, when a high certainty can be obtained about the abnormality of the in-vehicle device subject to failure diagnosis from the words uttered by the user, the failure diagnosis is performed with a small amount of information (for example, only self-diagnosis information). . On the other hand, when only a low certainty about the abnormality of the in-vehicle device subject to failure diagnosis can be obtained from the words uttered by the user, a lot of information is acquired and the failure diagnosis is performed. Therefore, the number of information acquisitions used in failure diagnosis can be reduced to the minimum necessary according to the situation, so that the information processing load can be effectively reduced.

  In addition, the vehicle maintenance information management system according to the present embodiment stores a correspondence relationship between a phrase recognized by the phrase recognition device 1102 and an abnormal level of the in-vehicle device subject to failure diagnosis, and is recognized by the phrase recognition device 1102. The number of pieces of information used for failure diagnosis is determined according to the abnormal level corresponding to the phrase. For example, as described above, a correspondence relationship between a phrase issued by the user and a certainty factor regarding abnormality of the in-vehicle device to be diagnosed is stored, and a certainty factor corresponding to the phrase recognized by the phrase recognition device 1102 is stored. If it is high, perform fault diagnosis with less information. On the other hand, when the certainty level corresponding to the phrase recognized by the phrase recognition device 1102 is low, a lot of information is acquired and the failure diagnosis is performed. Therefore, the number of information acquisitions used in failure diagnosis can be reduced to the minimum necessary according to the situation, so that the information processing load can be effectively reduced.

  Next, a second embodiment of a method for acquiring data used for failure diagnosis will be described. In this embodiment, the certainty of occurrence of abnormality of the in-vehicle device subject to failure diagnosis is determined according to the usage status of the in-vehicle device subject to failure diagnosis, and the number of information used for failure diagnosis is changed according to this certainty factor. Is done.

  Below, the function which the control apparatus 10 of the terminal device 100 of a present Example implement | achieves is demonstrated.

  The control device 10 of the terminal device 100 according to the present embodiment has a monitoring function for monitoring the usage status of the in-vehicle device subject to failure diagnosis. With this monitoring function, information on the usage frequency of the in-vehicle device subject to failure diagnosis is obtained. get.

  The control device 10 of the terminal device 100 according to the present embodiment uses the diagnosis information acquisition function to acquire the self-diagnosis information of the vehicle at a predetermined cycle, and in addition, the monitoring function causes a high frequency of use of the vehicle-mounted device targeted for failure diagnosis. When information indicating the level (hereinafter referred to as A level) is acquired, the vehicle self-diagnosis information is acquired by the diagnosis information acquisition function.

  On the other hand, the control device 10 of the terminal device 100 according to the present embodiment uses the monitoring function to indicate that the frequency of use of the in-vehicle device subject to failure diagnosis is an intermediate level (hereinafter referred to as B level) or a low level (hereinafter referred to as C level). Is acquired by the detailed information acquisition function, the detailed information on the usage status of the in-vehicle device subject to failure diagnosis is acquired. Here, the number N1 of detailed information acquired by the detailed information acquisition function when the frequency of use of the in-vehicle device subject to failure diagnosis is B level is detailed information when the use frequency of the in-vehicle device subject to failure diagnosis is C level. The number is set smaller than the number N2 of detailed information acquired by the acquisition function.

  Next, the control procedure of the failure diagnosis server 200 of this example will be described with reference to the flowcharts of FIGS. 11 and 12. Note that steps S31 to S33 and S37 to S39 are the same as steps S31 to S33 and S37 to S39 described in the above-described embodiment, and therefore, repetitive description is omitted and the description of the above-described embodiment is used. .

  If it is determined in step S33 that the phrase information has been acquired, in step S51, the control device 210 of the failure diagnosis server 200 uses the frequency of use of the in-vehicle device targeted for failure diagnosis corresponding to the phrase information acquired in step S33. Is determined to be at the A level. If it is determined in step S51 that the usage frequency is the A level, the process proceeds to step S52. On the other hand, if it is determined in step S51 that the usage frequency is not the A level, the process proceeds to step S53 shown in FIG.

  In step S <b> 52, the control device 210 of the failure diagnosis server 200 acquires vehicle self-diagnosis information from the terminal device 100. Next, the process proceeds to step S32, and the control device 210 determines whether or not a failure (failure or a sign of failure) has occurred in the vehicle based on the self-diagnosis information acquired in step S52.

  In step S53, the control device 210 of the failure diagnosis server 200 determines whether the frequency of use of the in-vehicle device targeted for failure diagnosis corresponding to the phrase information received in step S33 is the B level or the C level. If it is determined in step S53 that the usage frequency is the B level, in step S54, the control device 210 transmits a request signal for detailed information of the number of data N1 (<N2) to the terminal device 100. On the other hand, when it is determined in step S53 that the usage frequency is the C level, in step S55, the control device 210 transmits a request signal for detailed information of the number of data N2 to the terminal device 100.

  Subsequent to steps S54 and S55, in step S56, the control device 210 of the failure diagnosis server 200 acquires detailed information on the number of data N1 or N2 from the terminal device 100 via the communication device 220.

  Next, in step S57 shown in FIG. 11, the control device 210 of the failure diagnosis server 200 detects a failure (failure or failure failure) on the in-vehicle device subject to failure diagnosis based on the detailed information on the number of data N1 or N2 acquired in step S69. It is determined whether or not a sign is generated. If it is determined in step S57 that a failure or the like has occurred in the vehicle, the process proceeds to step S37. On the other hand, if it is determined in step S57 that no failure or the like has occurred in the vehicle, the process returns to step S31.

  Since the vehicle maintenance information management system according to the second embodiment of the present invention is configured and operates as described above, the following effects can be obtained.

  The vehicle maintenance information management system according to the present embodiment acquires predetermined information about the usage status of the in-vehicle device to be diagnosed when a predetermined word is recognized by the word recognition device 1102, and according to the predetermined information The number of information to be used for failure diagnosis is determined. For example, as described above, when the frequency of use of an in-vehicle device subject to failure diagnosis is high, the probability of abnormality of the device is high (for example, an air conditioner is likely to be clogged), and less information ( For example, fault diagnosis is performed using only self-diagnosis information. On the other hand, when the frequency of use of the in-vehicle device subject to failure diagnosis is low, a lot of information is acquired to perform failure diagnosis. Therefore, the number of information acquisitions used in failure diagnosis can be reduced to the minimum necessary according to the situation, so that the information processing load can be effectively reduced.

  Further, the vehicle maintenance information management system of the present embodiment stores the correspondence between the predetermined information on the usage status of the in-vehicle device subject to failure diagnosis and the abnormal level of the target portion of failure diagnosis, and the acquired predetermined information In accordance with the information, the number of information to be used for failure diagnosis is determined. For example, as described above, the correspondence relationship between the usage frequency of the in-vehicle device subject to failure diagnosis and the abnormal level of the in-vehicle device subject to failure diagnosis is stored, and the abnormal level seems to be high according to the high usage frequency. In such a case, failure diagnosis is performed with a small amount of information. On the other hand, when the abnormal level is low due to the low usage frequency, a lot of information is acquired and the failure diagnosis is performed. Therefore, the number of information acquisitions used in failure diagnosis can be reduced to the minimum necessary according to the situation, so that the information processing load can be effectively reduced.

  The embodiment described above is described for facilitating the understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

  For example, in the above-described embodiment, the example in which the failure diagnosis server 200 performs vehicle failure diagnosis has been described. However, the terminal device 100 may perform vehicle failure diagnosis. In this case, the terminal device 100 is a map in which the vehicle self-diagnosis information is associated with information related to the failure of the in-vehicle device subject to failure diagnosis, and the detailed information of the in-vehicle device subject to failure diagnosis, A vehicle failure diagnosis is performed with reference to a map in which information related to the failure of the device is associated in advance. As the map, a map stored in the ROM 212 of the failure diagnosis server 200 may be referred to, or a map stored in advance in the ROM 12 of the terminal device 100 may be used.

  In the above-described embodiment, the first example and the second example of the method for acquiring data used for failure diagnosis may be combined.

  In the embodiment described above, the control device 210 of the failure diagnosis server 200 corresponds to information acquisition means, failure diagnosis means, first storage means, and second storage means in the vehicle diagnosis system of the present invention. The acquisition device 1100 and the phrase information recognition device 1102 correspond to the phrase information recognition means of the present invention. Further, the self-diagnosis information and the detailed information are included in the information used in the failure diagnosis of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Terminal device 10 ... Control device 20 ... Communication device 30 ... Output device 200 ... Fault diagnosis server 210 ... Control device 220 ... Communication device 230 ... Database 1000 ... In-vehicle device 1 ... Communication device 2 ... Vehicle controller 21 ... Self-diagnosis device 3 DESCRIPTION OF SYMBOLS ... Drive control device 4 ... Steering device 5 ... Sensor 51 ... Vehicle speed sensor 52 ... Steering angle sensor 53 ... Attitude sensor 54 ... Obstacle sensor 6 ... Camera 61 ... Image processing device 7 ... Navigation device 71 ... GPS
8 ... Driving support device 81 ... ABS
82 ... TCS
83 ... VDC
84 ... Obstacle detection device 85 ... Lane recognition device 86 ... Automatic driving assist device 9 ... Output device 91 ... Display 92 ... Speaker 1100 ... Phrase information acquisition device 1101 ... Sound collector 1102 ... Phrase recognition device

Claims (4)

A vehicle diagnosis system that performs failure diagnosis on an in-vehicle device mounted on a vehicle,
Information acquisition means for acquiring information used by the fault diagnosis from a vehicle,
A fault diagnosis means for performing the fault diagnosis on the basis of the information used in the failure diagnosis obtained from the vehicle by the information acquisition means,
A phrase recognition means for recognizing a phrase from a voice uttered by a user of the vehicle;
With
The information acquiring unit recognizes a predetermined phrase by the phrase recognizing unit, and has a relatively low certainty that the user can obtain an abnormality of the in-vehicle device that is a target of the failure diagnosis from the recognized phrase. When judged, the vehicle diagnosis system which acquires the information used by the said fault diagnosis by increasing the number of acquisition compared with the case where it is judged that the said certainty degree obtained by the said user is relatively high . And phrases which are the recognized by the phrase recognition means includes a first storage means for storing a correspondence relationship between the abnormal level of the vehicle device,
The information acquisition means reads the abnormality level corresponding to the recognized word by the word recognizing means from said first storage means, when the read said abnormal level is a first level, the failure The acquisition number of information used in diagnosis is determined as a first acquisition number, and when the read abnormal level is a second level higher than the first level, the information used in the failure diagnosis is The vehicle diagnosis system according to claim 1, wherein the acquisition number is determined to be a second acquisition number that is smaller than the first acquisition number. Said information acquisition means, when a predetermined word is the recognized by the phrase recognition means obtains the information on the frequency of use of the vehicle device, in accordance with information of said use frequency information used in the failure diagnosis Determine the number of acquisitions,
It said frequency of use information acquired by the information acquiring means includes a second memory means for storing a correspondence relationship between the abnormal level of the vehicle device,
The information acquisition unit, when reading the abnormal level corresponding to the acquired said use frequency information from said second memory means, is read out said abnormal level is the first level, in the fault diagnosis The acquisition number of information to be used is determined to be the first acquisition number, and when the read abnormal level is a second level higher than the first level, the acquisition of information to be used in the fault diagnosis The vehicle diagnosis system according to claim 2, wherein the number is determined to be a second acquisition number that is smaller than the first acquisition number. A computer is a vehicle diagnostic method for performing a fault diagnosis on an in-vehicle device mounted on a vehicle,
Acquires information used in the fault diagnosis from a vehicle,
The failure diagnosis performed on the basis of the information used in the failure diagnosis obtained from the vehicle,
Recognizing words from speech generated by a user of the vehicle,
When it is determined that the certainty level obtained by the user for the abnormality of the in-vehicle device that is the target of the failure diagnosis is relatively low from the recognized phrase, the certainty level obtained by the user is relatively Compared to a case where it is determined to be high, the vehicle diagnosis method for acquiring information used in the failure diagnosis by increasing the number of acquisitions.

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