JP2005219717A - Abnormality diagnosing device of vehicle/on-vehicle instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an abnormality diagnosing device of a vehicle/on-vehicle instrument that can smoothly grasp the situation or tendency of an abnormality occurring phenomenon in a whole vehicle sold by a car manufacturer and can reduce communication fee when informing. <P>SOLUTION: The abnormality diagnosing device 3 of the vehicle/on-vehicle instrument has a function of transmitting a fault occurring situation of the vehicle 1 to a collecting center 5 and a dealer/maintenance shop 7 using communication lines 8 and 9. The abnormality diagnosing device 3 has a function of classifying the fault occurring situation of the vehicle depending on the urgency and recording it to a recording device 4 of a vehicle controller 2 and of processing the high-grade fault data in a first mode of transmitting it to the collecting center 5 immediately when the fault occurs. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle / vehicle equipment abnormality diagnosis processing method, and more particularly, to a vehicle / vehicle equipment abnormality diagnosis apparatus that processes an abnormal state of a vehicle body and a vehicle equipment mounted on the vehicle according to the degree of urgency.

  The vehicle or the like may generate various abnormalities while the vehicle is running. Preventing such an abnormality in advance is most preferable for a driver or the like who gets on the vehicle, and at the same time, a car manufacturer who guarantees the vehicle performance can also reduce the loss. In other words, car manufacturers should take early measures against problems by knowing at an early stage the phenomena (especially abnormal conditions) that occur in vehicles and in-vehicle devices that are traveling in the field, and by grasping the situation and trends of the phenomena occurring in the entire sales vehicle. Becomes easier.

  Conventionally, an in-vehicle device mounted on a vehicle may generate an abnormality based on various reasons. Many systems have been proposed for displaying an abnormal state of a vehicle on a vehicle-mounted monitor when such an abnormality occurs (see, for example, Patent Document 1).

In addition, an abnormality diagnosis method for performing abnormality diagnosis of a vehicle emergency information reporting device that detects an emergency situation of a vehicle and reports emergency information to a center via a wireless line is performed at the time of activation of the vehicle emergency information reporting device. There has been proposed a vehicle emergency information reporting device that performs abnormality diagnosis even in a cycle and performs abnormality diagnosis even when a predetermined event occurs (see, for example, Patent Document 2).
JP 2003-22330 A (page 3, Fig. 1) Japanese Patent Laid-Open No. 11-250382 (page 5, FIG. 4)

  According to Patent Document 1, when a failure occurs, the driver can accurately grasp the seriousness of the failure without requiring specialized knowledge, and it is possible to avoid a serious situation such as engine stoppage. Is. Patent Document 1 relates to a vehicle fault diagnosis system, which detects various faults from the state of the vehicle, and outputs a diagnosis result information corresponding to the detected fault content, and is detected by the fault diagnosis unit. The failure content is ranked in advance according to the severity of the failure, the diagnosis result information is input from the failure diagnosis means, and the failure content rank indicated by the diagnosis result information is based on the ranking data A failure analysis unit that determines and sets a different display method / content according to the determined rank, and a display that displays a failure according to the display method / content set by the failure analysis unit.

  However, according to Patent Document 1, the driver can accurately grasp the seriousness of the failure and can avoid the occurrence of a serious situation such as engine stoppage. To know the phenomenon (particularly abnormal condition) that occurs in vehicles and in-vehicle devices that cannot be used in the field at an early stage, and to take early measures against malfunctions by grasping the situation and trend of the phenomenon occurring in the entire sales vehicle Has the problem of not being able to.

  Further, Patent Document 2 makes a diagnosis of the vehicle emergency information reporting device at various timings so that it can always be confirmed that the device functions normally. The diagnosis is performed at three timings of the vehicle device activation, periodically and at the occurrence of an event, and further, an abnormality diagnosis is performed in consideration of the degree of influence on the function provided by the vehicle emergency information notification device 2. And when abnormality of the vehicle emergency information reporting device 2 is detected, the error score taking into account the influence on the function provided by the vehicle emergency information reporting device 2 is accumulated, and if the diagnosis result is normal, the error score is subtracted. When the accumulated value reaches a certain value, abnormality detection is performed. Specifically, this patent document 2 discloses an abnormality diagnosis method for performing abnormality diagnosis of a vehicle emergency information device that detects an emergency situation of a vehicle and makes an emergency call to a center via a wireless line. Diagnosis is performed, abnormality diagnosis is performed even in a predetermined cycle, and the abnormality diagnosis is performed even when a predetermined event occurs.

  However, according to Patent Document 2, the error score taking into account the degree of influence on the function provided by the vehicle emergency information reporting device 2 is accumulated, and if the diagnosis result is normal, the error score is subtracted, and the accumulated value becomes a constant value. Since the abnormality is detected once it reaches, even if an abnormality is detected once, the diagnosis result is normal due to the subsequent phenomenon, and if the error score is subtracted, the cumulative value may not reach a certain value, In this case, the notification level determination is not effective because the notification period may be long. However, it is important for both users and car manufacturers to collect abnormal phenomena for the purpose of data aggregation to ascertain the vehicle performance status guaranteed by the car manufacturer. The situation and trend cannot be grasped smoothly, and there is a possibility that data collection guaranteed by the car manufacturer may be long-term, and sufficient measures cannot be taken.

  The object of the present invention is to notify the abnormality occurrence phenomenon in the vehicle running in the field corresponding to the degree of urgency, so that the car manufacturer can smoothly grasp the situation and tendency of the abnormality occurrence phenomenon in the entire sales vehicle, Vehicles and in-vehicles that prevent long-term data collection guaranteed by car manufacturers, can efficiently transmit the status of the vehicle at the time of the phenomenon to the collection center, and can reduce communication charges at the time of notification The object is to provide a device abnormality diagnosis device.

  Other objects of the present invention will be described in the best mode for carrying out the invention described later.

The feature of the abnormality diagnosis device for a vehicle / in-vehicle device according to the present invention is the abnormality diagnosis device for a vehicle / in-vehicle device having a function of transmitting a failure occurrence state of the vehicle to a collection center using a communication line.
According to the degree of urgency, the failure occurrence status of the vehicle is recorded in advance in the storage device of the in-vehicle control device in stages of high-order failure data, medium-order failure data, and low-order failure data,
High-order defect data is processed in a first mode that is immediately sent to the collection center when a defect occurs,
The middle failure data is processed in the second mode in which the failure occurrence state is stored in the storage device of the in-vehicle control device and transmitted to the collection center when the engine is started.
The low-order trouble data is configured to have a function of storing a trouble occurrence state in a storage device of the in-vehicle control device and processing in a third mode arbitrarily read by the dealer / maintenance factory during vehicle inspection.

  According to the present invention, it is possible for a car manufacturer to smoothly grasp the situation and tendency of an abnormality occurrence phenomenon in the entire sales vehicle.

  In addition, according to the best mode for carrying out the invention, it is possible to prevent the data collection guaranteed by the car manufacturer from being prolonged.

  Further, according to the best mode for carrying out the invention, the situation in the vehicle at the time of occurrence of the phenomenon can be efficiently transmitted to the collection center.

  Further, according to the best mode for carrying out the invention, it is possible to reduce the communication fee when transmitting the situation in the vehicle at the time of occurrence of the phenomenon.

  In addition, according to the best mode for carrying out the invention, it is possible to find an essential defect of the vehicle and collect a history of the essential defect of the vehicle.

  The abnormality diagnosis device for a vehicle / in-vehicle device according to the present invention divides a vehicle defect occurrence state into a high-level defect data, a medium-level defect data, and a low-level defect data in advance according to the degree of urgency. In the case of malfunction data, transmission processing to the collection center is performed when a malfunction occurs, and in the case of medium malfunction data, the occurrence status of the malfunction is accumulated in the storage device of the in-vehicle control device, and this memory is stored. The data is collected and sent to the collection center when the engine is started. In the case of low-order trouble data, the trouble occurrence status is stored in the storage device of the in-vehicle controller, and this stored data is stored in the dealer during vehicle inspection. This is realized by processing so as to be arbitrarily readable.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 shows an embodiment of a vehicle system configuration of a vehicle / in-vehicle device abnormality diagnosis apparatus according to the present invention and information transmission relationship with a collection center.

  In FIG. 1, 1 is a vehicle, 2 is a vehicle control device, 3 is an abnormality diagnosis device for a vehicle / vehicle equipment, 4 is a storage device, 5 is a collection center, 6 is a car manufacturer / parts supplier, 7 is It is a dealer / maintenance factory.

  A vehicle control device 2 is mounted on the vehicle 1, and this vehicle control device 2 is configured by a microcomputer, and controls the running state of the constituent vehicle or sends it from each sensor mounted on the vehicle. It has a function of monitoring various states of the vehicle based on the received data. The vehicle control device 2 includes a vehicle / in-vehicle device abnormality diagnosis device 3. The vehicle / in-vehicle device abnormality diagnosis device 3 includes a vehicle information accumulation processing unit 31, a notification timing determination unit 32, and communication control. A portion 33 is provided. The vehicle information accumulation processing unit 31 has a function of classifying data input from various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus into information for storing in the storage device 4. It is what you have. Further, the notification timing determination unit 32 simply stores in the storage device 4 whether the abnormality information is to be notified immediately or the abnormality information to be notified at the time of start-up based on the data processed by the vehicle information accumulation processing unit 31, and then is stored in the dealer. / Determines the timing for notifying abnormality information read by the maintenance shop 7 or various data results. Further, the communication control unit 33 collects via the wide area communication means (for example, the Internet, satellite line, etc.) 23 or the narrow area communication means (for example, wireless LAN) 24 based on the determination result in the notification timing determination unit 32. For transmission to the center 5 or the dealer / maintenance shop 7.

  The storage device 4 includes a notification data management database 41, a notification timing code correspondence database 42, and a detailed vehicle information history database 43. The notification data management database 41 is a history in which data input to the vehicle information accumulation processing unit 31 from various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus is to be transmitted to the collection center 5. For data management and storage. Specifically, the notification data is converted into data as a management table and stored in the database. In addition, the notification timing code correspondence database 42 stores the data results collected by various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus in advance in light of the seriousness of the abnormality occurrence phenomenon. It is stored as a correspondence table for classifying into high-order defect data, medium-order defect data, and low-order defect data in accordance with the degree of trouble (emergency) that impedes driving.

  High-level failure data refers to data collected by various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus, which are directly related to vehicle driving safety, for example, tire slip Such as increased rate and exhaustion of the battery. Medium failure data means that data collected by various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus is not directly related to the safety of vehicle travel. This data may affect the vehicle. The low-order defect data means that the data collected by the various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus is not directly related to the safety of the vehicle travel. However, the car manufacturer 6 and the dealer / maintenance factory 7 can find the essential trouble of the vehicle as reference data for the future car maintenance and the like. It is data to collect as a history of.

  The detailed vehicle information history database 43 stores the data results collected by the various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus in a database as vehicle information history data.

  Reference numeral 25 denotes operation input means, and 26 denotes information output means. The operation input means 25 is for operating the abnormality diagnosis device 3 for a vehicle / vehicle equipment, and the information output means 26 is output from the notification timing determination unit 32 determined based on the notification timing determination unit 32. Is output to the display of the in-vehicle device.

  A wide-area communication means (for example, the Internet, a mobile phone network, etc.) 23 communicates between the vehicle / vehicle equipment abnormality diagnosis device 3 and the collection center 5 via a long-distance communication network (for example, the Internet, a mobile phone network, etc.) 8. Is for doing. The communication between the wide area communication means 23 and the collection center 5 is used for notification of an occurrence phenomenon in the vehicle during field traveling. Further, the narrow area communication means 24 is connected between the vehicle / vehicle equipment abnormality diagnosis device 3 and the dealer / maintenance factory 7 via the short-range communication network (for example, DSRC, wireless LAN) 9 when the vehicle is delivered to the dealer / maintenance factory 7. It is for communication.

  The collection center 5 aggregates and analyzes the phenomenon of the vehicle, and provides the occurrence phenomenon and trend contents of all the vehicles to the car maker (or parts supplier) 6 via the network 10. The car manufacturer (or parts supplier) 6 analyzes the data transmitted from the collection center 5 in detail. Further, in the dealer / maintenance factory 7, the vehicle accumulated detailed information stored in the detailed vehicle information history database 43 of the storage device 4 of the vehicle 1 when the vehicle 1 is delivered to the dealer / maintenance factory 7 for maintenance or the like. Suck up. The dealer / maintenance factory 7 collects detailed information based on the vehicle accumulated detailed information read from the detailed vehicle information history database 43 and takes measures on site.

  The relationship between the dealer / maintenance factory 7 and the car maker (or parts supplier) 6 is that the dealer / maintenance factory 7 provides detailed information for analysis to the car maker 6 and the car maker (or parts supplier) 6 Exchanges the latest analysis results and specific countermeasure information with the dealer / maintenance factory 7.

  FIG. 2 is a table showing specific items of high-order defect data, medium-order defect data, and low-order defect data stored in the notification timing code correspondence database 42 of the storage device 4. In FIG. 2, the detection failure phenomenon code, the detection failure phenomenon content, and the notification timing code are shown.

  The detection failure phenomenon code is a code number “0, 1, 2, 3, 4,... The contents of the detection failure phenomenon specify the phenomenon of the actual vehicle. For example, the code number “0” is “no abnormality”, the code number “1” is “alternator voltage abnormality detection”, and the code number “2” is “ Starter noise detection ”, code number“ 3 ”is“ engine detection ”, code number“ 4 ”is“ idle malfunction detection ”, code number“ 5 ”is“ knocking detection ”, and code number“ 6 ”is“ start failure detection ” ”, Code number“ 7 ”is“ acceleration failure detection ”, code number“ 8 ”is“ ABS failure ”,... is there. The notification timing code is a numerical indication of the notification timing (aside from high-order failure data, middle-order failure data, and low-order failure data) for the specific failure phenomena listed in the description of the detected failure phenomenon. It is. The number of the notification timing code indicates the urgency level of the notification. The high level defect data (data having the highest urgency level) is “1”, and the middle level defect data (data having the medium urgency level) is “ 2 ”, low-level defect data (data with the lowest urgency) is set to“ 3 ”. In this notification timing code, “1” is an immediate notification, “2” is a notification at the next activation, and “3” is not required to be notified.

  Therefore, when an abnormality detection signal is input from the various sensors of the vehicle electronic control devices 21 and 22 to the notification timing determination unit 32 of the abnormality diagnosis device 3 of the vehicle / vehicle equipment, the notification timing determination unit 32 stores the storage device 4. Is compared with the data stored in the notification timing code correspondence database 42 stored in the above, and the abnormality detection signal from the various sensors of the vehicle electronic control devices 21 and 22 corresponds to the contents of the detected malfunction phenomenon. It is determined whether to perform the correct processing. That is, when the alternator voltage abnormality is detected by the various sensors of the vehicle electronic control devices 21 and 22, the alternator voltage abnormality signal is input to the notification timing determination unit 32 of the abnormality diagnosis device 3 of the vehicle / vehicle equipment. The notification timing determination unit 32 compares the data stored in the notification timing code correspondence database 42 stored in the storage device 4 with the data detected by the various sensors of the vehicle electronic control devices 21 and 22. If the number “1”, the failure phenomenon content “alternator voltage abnormality detection”, and the notification timing code “1” are determined, the notification timing code “1” indicates that the abnormality information to be notified immediately has been input. Accordingly, in this case, the detection result is immediately transmitted from the wide area communication means 23 to the collection center 5 via the long distance communication network 8.

  FIG. 3 shows the contents of the notification data management database 41 of the storage device 4 as a table. In the notification data management table shown in FIG. 3, the occurrence time, the running distance (km) at the time of occurrence, and the detection failure phenomenon code are shown.

  The occurrence time records the time at which the malfunction occurred, and the travel distance (km) at the time of occurrence records the travel distance of the vehicle (the distance value indicated by the distance meter) at the time when the malfunction occurred. Thus, the detected malfunction phenomenon code is a record of the detected malfunction phenomenon code shown in FIG. 2 showing what the malfunction phenomenon has occurred. The content of the data communicated by this detection failure phenomenon code becomes clear.

  In FIG. 3, four specific detection failure phenomena are shown. The top row shows the occurrence time “2004.1.30.12.30.10.500”, that is, January 30, 2004, 12:30:10, 500 ”, and the travel distance (km)“ “22393”, ie, 22,393 km, indicates that a detection failure phenomenon code “6”, ie, “starting failure detection” has occurred. Similarly, the second row indicates that a start-up failure detection has occurred at 12: 32: 01: 210 on Jan. 30, 2004 at an occurrence travel distance (km) of 22,393 km. Furthermore, the third row shows that engine stall detection occurred at an occurrence travel distance (km) of 22,396 km on January 30, 2004 at 12:33:30 610.

  FIG. 4 shows a process flowchart of the notification timing determination unit 32 of the vehicle / vehicle equipment abnormality diagnosis apparatus 3. This notification timing determination unit 32 is simply stored in the storage device 4 according to the data processed by the vehicle information accumulation processing unit 31, either abnormal information to be notified immediately or abnormal information to be notified at the time of start-up. Is used to determine the timing of notifying the abnormal information read out by various data results.

  When there is an abnormality detection notification based on the data processed by the vehicle information accumulation processing unit 31, the notification timing determination unit 32 first receives the preset notification timing code correspondence table shown in FIG. Check the type of abnormality (contents of the detection failure phenomenon) from the detection failure phenomenon code to identify the type of abnormality. When the type of abnormality is specified in step 100, in step 110, the type of abnormality that has been notified of abnormality detection is the notification timing of high-order defect data, middle-order defect data, or low-order defect data. The notification timing code is identified from the type of abnormality (the content of the detected malfunction phenomenon).

  When the notification timing code is specified in step 110, whether or not the type of abnormality that has been notified of abnormality detection is level “1” (higher defect data) in step 120 (abnormal information to be notified immediately). Whether or not). If it is determined in step 120 that the type of abnormality that has been notified of abnormality detection is not level “1” (high-order defect data), in step 130, the type of abnormality that has been notified of abnormality detection is level “2” (intermediate level). Whether or not it is abnormal information to be notified at the time of activation). If it is determined in step 120 that the type of abnormality that has been notified of abnormality detection is not level “2” (medium defect data), the type of abnormality that has been notified of abnormality detection is level “3” (low-order defect data). And the flow ends. If it is determined in step 120 that the type of abnormality that has been notified of abnormality detection is level “2” (medium defect data), in step 140, the target phenomenon code, occurrence time, and travel distance at occurrence are stored. In the notification data management database 41 of the device 4, the notification data management table shown in FIG.

  If it is determined in step 120 that the type of abnormality that has been notified of abnormality detection is level “1” (higher defect data), in step 150, a screen for notifying the user as shown in FIG. A message (warning) is output to the output means and displayed on the display so that the driver can confirm it. When the screen for notifying the user as shown in FIG. 7 is displayed in step 150, a transmission request for transmitting data to the collection center 5 is immediately output to the communication control unit 33 in step 160 and collected using the wide area communication means 23. The target detection failure phenomenon code, the occurrence time, and the travel distance at the time of occurrence are transmitted to the center 5.

  If data is transmitted to the collection center 5 in this step 160, whether or not transmission of the detected detection failure phenomenon code, occurrence time, and travel distance at the time of occurrence to the collection center 5 using the wide area communication means 23 is successful in step 170. Determine. That is, if the communication fails due to the influence of the traveling area, the communication is retried several times later. If the target transmission to the collection center 5 has not succeeded in this step 170 (the transmission has not succeeded even if the specified number of retries has been reached), in step 140 the target phenomenon code, the occurrence time, and the travel distance at the time of occurrence. Is added to the notification data management table shown in FIG. 3 in the notification data management database 41 of the storage device 4, and the flow ends.

  If the target transmission to the collection center 5 is successful in step 170, or if the target transmission to the collection center 5 is not successful and the transmission is successful within the specified number of retries, this flow is terminated.

  FIG. 5 shows a process flowchart of activation of the vehicle information accumulation processing unit 31 of the vehicle / vehicle equipment abnormality diagnosis apparatus 3. The vehicle information accumulation processing unit 31 has a function of processing data input from various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus into information for storing in the storage device 4. It is what you have.

  In FIG. 5, when the activation of the terminal of the vehicle / vehicle equipment abnormality diagnosis apparatus 3 is started in step 200, the terminal of the vehicle / vehicle equipment abnormality diagnosis apparatus 3 is activated in step 210. When the activation process of the terminal of the vehicle / in-vehicle device abnormality diagnosis device 3 is performed in this step 210, the content of the notification data management table shown as a table with the content of the notification data management database 41 of the storage device 4 in step 220 Is checked to determine whether or not the content (data) exists in the notification data management table. If it is determined in step 220 that the content (data) does not exist in the notification data management table of the notification data management database 41 of the storage device 4, this flow is terminated and the activation process is completed.

  If it is determined in step 220 that the content (data) exists in the notification data management table of the notification data management database 41 of the storage device 4, the notification data management table of the notification data management database 41 of the storage device 4 is determined in step 230. The communication processing for reading the contents and transmitting the contents (data) of the notification data management table to the collection center 5 using the wide area communication means 23 is performed. In step 230, when communication processing is performed to transmit the contents (data) of the notification data management table to the collection center 5 using the wide area communication means 23, the data is transmitted to the collection center 5 to the communication control unit 33 in step 240. A transmission request is output, and the detection failure phenomenon code, the occurrence time, and the travel distance at the time of occurrence are transmitted to the collection center 5 using the wide area communication means 23.

  If data is transmitted to the collection center 5 in this step 240, whether or not the detection failure phenomenon code, occurrence time, and travel distance at the time of occurrence have been successfully transmitted to the collection center 5 using the wide area communication means 23 in step 250. Determine. That is, if the communication fails due to the influence of the traveling area, the communication is retried several times later. If the target transmission to the collection center 5 has not succeeded in this step 250 (the transmission has not succeeded even if the specified number of retries has been reached), the flow is terminated and the activation process is completed.

  If the transmission of the object to the collection center 5 is successful in this step 250, the object phenomenon code, the occurrence time, and the travel distance at the occurrence are shown in FIG. 3 of the notification data management database 41 of the storage device 4 in the next step 260. The contents (data) are deleted from the notification data management table shown in the figure, the flow is terminated, and the activation process is completed.

  FIG. 6 shows a normal processing flowchart of the vehicle information accumulation processing unit 31 of the vehicle / vehicle equipment abnormality diagnosis apparatus 3. The vehicle information accumulation processing unit 31 has a function of processing data input from various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus into information for storing in the storage device 4. It is what you have.

  In FIG. 6, when the start of the terminal of the vehicle / vehicle equipment abnormality diagnosis device 3 starts in step 300, the vehicle information storage processing unit 31 of the vehicle / vehicle equipment abnormality diagnosis device 3 starts in step 310. It is determined whether or not data input from various sensors of the vehicle electronic control devices 21 and 22 connected via the terminal is received. In step 310, the control waits until data is received from various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus. If it is determined in step 310 that data has been received from the various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus, in step 320, the vehicle of the abnormality diagnosis device 3 for the vehicle / vehicle equipment. The information storage processing unit 31 acquires data input from various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus. At this time, the occurrence time of the abnormality is obtained from the data.

  When the data input from the various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus is acquired in step 320, the information received from the in-vehicle communication bus is stored in the recording device in step 330. Categorize to accumulate. Then, if the information received from the in-vehicle communication bus is classified in step 330 so as to be stored in the recording device, in step 340, an abnormality occurrence status check of the detection failure phenomenon code (detection failure of the vehicle is detected) Check the value of the symptom code).

  When the abnormality occurrence status of the detected failure phenomenon code is checked in step 340, it is determined in step 350 whether or not abnormality has been detected. If it is determined in step 350 that no abnormality has been detected, the process proceeds to step 380. If it is determined in step 350 that an abnormality has been detected, the travel distance of the vehicle at the time of abnormality detection is acquired in step 360. That is, the current vehicle travel distance periodically obtained from the vehicle electronic control device is acquired as the travel distance at the time of occurrence. When the travel distance of the vehicle at the time of abnormality detection is obtained in step 360, in step 370 the vehicle information storage processing unit 31 of the vehicle / vehicle equipment abnormality diagnosis device 3 performs the vehicle / vehicle equipment abnormality diagnosis device 3's operation. An abnormality detection notification is output to the notification timing determination unit 32.

  If it is determined in step 370 that an abnormality detection notification is output to the notification timing determination unit 32 of the vehicle / in-vehicle device abnormality diagnosis device 3 or if no abnormality is detected in step 350, the detailed vehicle in the storage device 4 is determined in step 380. In the information history database 43, data input from the various sensors of the vehicle electronic control devices 21 and 22 to the vehicle information accumulation processing unit 31 is stored as a history. In step 380, when data input from the various sensors to the vehicle information accumulation processing unit 31 is stored as a history in the detailed vehicle information history database 43 of the storage device 4, the process returns to step 310.

  Next, as an embodiment of the present invention, “starter abnormal noise detection” in the case where the vehicle electronic control devices 21 and 22 detect an abnormal starter noise when the user operates the starter and starts the engine is taken as an example. I will give you a description.

<Detection of starter noise>
(Normal processing)
The vehicle electronic control devices 21 and 22 periodically transmit vehicle information to be managed in various ways to the vehicle / vehicle equipment abnormality diagnosis device 3. This vehicle information includes various information that each vehicle electronic control device grasps, such as engine speed, vehicle speed, vehicle travel distance, and detection failure information.

(When detecting abnormal noise)
From the vehicle electronic control devices 21 and 22, a detection failure phenomenon code indicating that an abnormal starter noise has been detected is sent to the abnormality diagnosis device 3 of the vehicle / in-vehicle device via the in-vehicle communication bus together with information on the occurrence time. .

(Process after abnormal noise detection)
In the vehicle / in-vehicle equipment abnormality diagnosis device 3, the vehicle information storage processing unit 31 uses the data results collected by the various sensors of the vehicle electronic control devices 21 and 22 connected via the in-vehicle communication bus as an abnormality occurrence phenomenon. In light of the seriousness of the vehicle, the vehicle 1 is classified into high-order failure data, middle-order failure data, and low-order failure data according to the degree to which vehicle travel is hindered (urgent level). The value of the detected malfunction phenomenon code is checked (step 310 to step 340). Further, when the vehicle information accumulation processing unit 31 detects that the detection failure phenomenon code is not normal, the current vehicle travel distance periodically obtained from various sensors of the vehicle electronic control devices 21 and 22 is used as the travel distance at the time of occurrence. Obtain (Step 350 to Step 360).

  Thereafter, the vehicle information accumulation processing unit 31 notifies the notification timing determination unit 32 that an abnormality has been detected together with the detected malfunction phenomenon code, the occurrence time, and the travel distance at the time of occurrence, and then the detailed vehicle information history database 43 in the storage device 4. The vehicle information (starter noise) input from various sensors to the vehicle information accumulation processing unit 31 is stored as a history (steps 370 to 380).

  The notification timing determination unit 32 that has received the abnormality detection notification in this way refers to the notification timing code correspondence table set in advance as shown in FIG. It is recognized that the starter noise detection is at the notification timing of level “2” (step 100 to step 130). Since the vehicle information (starter noise) input from the various sensors to the vehicle information accumulation processing unit 31 is the notification timing of level 2, the detection failure phenomenon code of the target, the occurrence time, and the travel distance at the time of occurrence are shown in FIG. Is added to the notification data management table shown in FIG.

(When sending information)
When the abnormality diagnosis device 3 for the vehicle / vehicle equipment is activated, the contents of the notification data management table shown in FIG. 3 are checked as activation processing. If the contents (data) exist in the notification data management table, wide area communication is performed. Using the means 23, communication processing for transmitting contents (data) to the collection center 5 is performed (steps 200 to 240). If communication fails due to the influence of the traveling area, the data in the notification data management table is left as it is, and the activation process is completed (step 250). Since this notification data management table remains as it is, it will be transmitted again at the next activation. Further, after successful communication and transmission to the center, the contents of the notification data management table are deleted (step 260).

(Processing of collection center 5)
By processing in this way, the collection center 5 can obtain information (data) of “starter abnormal noise detection” from all vehicles equipped with the vehicle / in-vehicle equipment abnormality diagnosis device 3. (Data) is used to determine the trend of the occurrence of abnormal noise detection in the installed starter product.

  In this way, if it is possible to obtain the occurrence status of abnormal noise detection for installed starter products, abnormal noise detection for the same vehicle type at a specific time and mileage after a certain vehicle type is sold. If there is a large number of occurrences, it can be suspected that there is a potential defect in the starter product used in that model, even if the user does not bring it to the dealer. Become.

  Further, for example, the collection center 5 provides the contents of this trend to the car maker / parts supplier 6, and the car maker / parts supplier 6 that received the information analyzes the occurrence status and analyzes the cause in detail, thereby Can create realistic countermeasure information.

  If the information to be analyzed is insufficient only by this trend situation, the target starter-equipped vehicle is extracted and the dealer / maintenance factory 7 is urged to visit the store, and the recording device is used by using the narrow communication means 24 at the visit. The desired detailed information is taken up from the detailed vehicle information history information stored in 3. The dealer / maintenance factory 7 provides the detailed information to the car maker / part supplier 6, and the car maker / part supplier 6 performs further detailed analysis. As a result of the analysis by the car manufacturer / part supplier 6, when specific countermeasure information is obtained, the information is sent to each dealer / maintenance factory 7, and each dealer / maintenance factory 7 has a vehicle having a similar phenomenon. When 1 is received, it is possible to respond quickly using this countermeasure information. Furthermore, if the analysis results show that there is a potential defect in the starter product itself, the parts with defects can be found on the market by improving the parts at an early stage and adopting a starter that has already been addressed in subsequent production vehicles. It is possible to reduce the number of circulated items at an early stage.

  The “abnormal sound of the starter” targeted in the present embodiment is not a phenomenon in which an abnormal noise occurs when the user uses it, but the starter function cannot be immediately used. Such an abnormal phenomenon that does not require immediate response is sent at the next start-up in the form of once storing the state of the occurrence phenomenon as in this example.

  Next, as another embodiment of the present invention, “detection of voltage abnormality of alternator” when a voltage abnormality of the alternator is detected in the vehicle electronic control devices 21 and 22 while the vehicle is running will be described as an example. To do.

<Detection of alternator voltage abnormality>
(When an abnormality is detected)
A detection failure phenomenon code indicating that a voltage abnormality of the alternator is detected is sent from the vehicle electronic control devices 21 and 22 to the abnormality diagnosis device 3 of the vehicle / vehicle equipment along with the time of occurrence through the in-vehicle communication bus. In this vehicle / in-vehicle equipment abnormality diagnosis device 3, the vehicle information accumulation processing unit 31 grasps from the received information that an abnormality detection phenomenon has occurred in the vehicle 1, and from the vehicle electronic control devices 21 and 22. The current vehicle travel distance obtained periodically is acquired as the travel distance at the time of occurrence.

  The vehicle information accumulation processing unit 31 notifies the notification timing determination unit 32 that an abnormality has been detected, together with the detection failure phenomenon code, the occurrence time, and the travel distance at the time of occurrence.

  The notification timing determination unit 32 refers to the notification timing code correspondence table set as shown in FIG. 2 and the received detection failure phenomenon code, and the occurrence phenomenon this time is the alternator voltage abnormality detection, and the level “1” is detected. Recognizing that it is a notification timing (steps 100 to 130).

  Since it is the notification timing of level “1”, the notification timing determination unit 32 generates a screen (FIG. 7) that informs the user, outputs it to the information output means, and immediately transmits it to the communication control unit 33 to the collection center 5. A request is issued, and the target detection failure phenomenon code, the occurrence time, and the travel distance at the time of occurrence are transmitted to the collection center 5 using the wide area communication means 23 (step 150 to step 160).

  If communication fails due to the influence of the driving area, etc., the communication is retried several times later, and when the specified number of retries is reached, the target detection failure phenomenon code, the time of occurrence, and the distance traveled at the time of occurrence Is added to the notification data management table so that it is notified at the next activation (steps 170 and 140). Further, when immediate notification is performed at the notification timing of level “1”, if data exists in the notification data management table shown in FIG. 3, the contents are also transmitted to the collection center 5 together. May be.

(Processing of collection center 5)
When the collection center 5 receives “notification of alternator voltage abnormality” from the vehicle 1 equipped with the vehicle / in-vehicle device abnormality diagnosis device 3, the collection center 5 provides the vehicle with information indicating a countermeasure as early as possible. To do. In addition, as in the previous example, it is possible to obtain the tendency of the occurrence situation regarding the voltage abnormality of the alternator from all the vehicles equipped with the abnormality diagnosis device 3 for the vehicle / in-vehicle device, and analyze the tendency as in the previous example. This makes it possible to take early action.

  If this voltage abnormality of the alternator is not dealt with as early as possible, the battery will rise, and the vehicle cannot be started. As described above, the abnormality diagnosis device 3 of the vehicle / vehicle equipment immediately detects the abnormal phenomenon in which the abnormal state propagates and quickly develops into a defect in the entire vehicle. Inform them and get corresponding information and services. For example, the response procedure information based on the latest information grasped by the collection center 5 is received from the collection center 5, the vehicle 1 notified by the collection center 5 is requested to transmit the traveling position information, and the information is Based on the information obtained from the collection center 5, navigation is set up to the repair service factory by contacting a nearby repair service factory to request a response.

<When notification timing code is changed>
As another embodiment, a notification timing code correspondence table in which the contents for the vehicle 1 equipped with the vehicle / vehicle equipment abnormality diagnosis device 3 in the detailed analysis process of the car manufacturer / parts supplier 6 according to the above embodiment is changed. It is transmitted via the center or via the dealer / maintenance factory, and the notification timing code correspondence table in the recording device 4 is updated in the notification timing determination unit 32 of the abnormality diagnosis device 3 of the vehicle / in-vehicle device, so that the notification content to the collection center 5 is The change is made so that the new trend / analysis is transmitted to the collection center 5.

  When the notification timing code correspondence table is updated, the notification timing determination unit 32 reviews the detailed vehicle information history information again, and if there is a detected malfunction phenomenon code to be notified, the contents of the new notification timing code correspondence table Based on the above, the center is notified.

  Note that the notification timing code may be fixed or variable. In addition, depending on individual data, there is a phenomenon item to be notified by a combination of phenomena even if the phenomenon is not required to be notified. Further, the notification timing code may be changed when the occurrence frequency of the same phenomenon changes.

The figure which shows the Example of the system configuration | structure of the vehicle of the abnormality diagnosis apparatus of the vehicle and vehicle equipment concerning this invention, and the transmission relationship of the information with a collection center. The table | surface which showed the specific item of the data memorize | stored in the notification timing code corresponding | compatible database of the memory | storage device shown in FIG. The table | surface which shows the content of the notification data management database of the memory | storage device shown in FIG. The figure which shows the process flowchart of the notification timing determination part of the abnormality diagnosis apparatus of the vehicle and vehicle equipment shown in FIG. The figure which shows the process flowchart of starting of the vehicle information storage process part of the abnormality diagnosis apparatus of the vehicle and vehicle equipment shown in FIG. The figure which shows the normal process flowchart of the vehicle information storage process part of the abnormality diagnosis apparatus of the vehicle and vehicle equipment shown in FIG. The figure which shows the screen notified to a user when the kind of abnormality detected by the notification timing determination part of the abnormality diagnosis apparatus of the vehicle / vehicle equipment shown in FIG. 1 is level "1".

Explanation of symbols

1 …………………… Vehicle 2 …………………… Vehicle control device 3 …………………… Vehicle and vehicle equipment abnormality diagnosis device 4 …………………… Storage device 5 …………………… Collection Center 6 …………………… Car Manufacturer / Parts Supplier 7 …………………… Dealer / Maintenance Factory 8 …………………… Telecom Network 9 …………………… Short-range communication networks 21, 22 ………… Vehicle electronic control unit 23 …………………… Wide area communication means 24 …………………… Narrow area communication means 31 …… ... ………… Vehicle information accumulation processing unit 32 …………………… Notification timing determination unit 33 …………………… Communication control unit 41 …………………… Notification data management database 42 ………… ……… Notification timing code correspondence database 43 …………………… Detailed vehicle information history database

Claims (6)

In the vehicle / in-vehicle equipment abnormality diagnosis device that has the function of transmitting the failure status of the vehicle to the collection center and dealer / maintenance factory using the communication line.
According to the degree of urgency, the failure occurrence status of the vehicle is recorded in advance in the storage device of the in-vehicle control device in stages of high-order failure data, intermediate failure data, and low-order failure data,
The high-order defect data is processed in a first mode that is immediately transmitted to the collection center when a defect occurs,
The intermediate failure data is processed in the second mode in which the failure occurrence state is stored in the storage device of the in-vehicle control device and transmitted to the collection center when the engine is started.
The low-order trouble data has a function of storing a trouble occurrence state in a storage device of the in-vehicle control device and processing in a third mode that can be arbitrarily read by a dealer / maintenance factory during vehicle inspection. An abnormality diagnosis device for vehicles and in-vehicle devices.   The abnormality diagnosis device for a vehicle / in-vehicle device according to claim 1, wherein the degree of urgency is determined based on a degree of hindrance to vehicle travel.   The vehicle / in-vehicle equipment abnormality diagnosis apparatus according to claim 1, wherein the transmission to the collection center is performed by a wide area communication unit.   4. The vehicle / vehicle equipment abnormality diagnosis device according to claim 1, wherein the transmission by the wide area communication means is mutual communication between the vehicle / vehicle equipment abnormality diagnosis device and the collection center via a long-distance communication network. .   5. The vehicle / in-vehicle equipment abnormality diagnosis device according to claim 1, wherein reading by the dealer / maintenance factory at the time of vehicle inspection is performed by a narrow-area communication means.   6. The vehicle according to claim 1, 2, 3, 4 or 5, wherein the transmission by the narrow area communication means is mutual communication between an abnormality diagnosis device for a vehicle / on-vehicle device and a dealer / maintenance factory via a short-range communication network.・ In-vehicle equipment abnormality diagnosis device.

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