JP2008032519A - Inspection method and inspection device for on-vehicle electronic control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection method and an inspection device for on-vehicle electronic control device capable of shortening the inspection time required for function inspection of the electronic control device, to be storable in a production schedule tact. <P>SOLUTION: The small-sized inspection device 4 storing diagnosis items for self-diagnosis of the electronic control device and a diagnosis start condition therefor is connected to an on-vehicle network, and the operation state of a vehicle is detected by the small-sized inspection device 4 from vehicle speed, an engine rotational frequency, an AT range state, or the like, in a vehicle inspection process. It is determined whether the diagnosis start condition of the electronic control device is satisfied, a diagnosis item wherein the diagnosis start condition is not satisfied is reported from the small-sized inspection device 4 to an external inspection device 13, and the external inspection device 13 side executes inspection by self-diagnosis of the electronic control device, only relative to an uninspected item corresponding to a diagnosis item where the diagnosis start conditions are not satisfied even once in the inspection process among inspection object items having self-inspection responsibility. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an in-vehicle electronic control device inspection method and inspection device that inspects an electronic control device (hereinafter referred to as “ECU”) mounted on a vehicle by using a self-diagnosis function of the electronic control device.

  In recent years, a lot of ECUs such as an engine control, a transmission control, a steering control, an air bag control, an ABS control and the like are mounted on a vehicle such as an automobile due to the advancement of electronics. These ECUs have a self-diagnosis function necessary for each function, and a self-diagnosis act is executed when a self-diagnosis start condition (running pattern) is satisfied.

  In general, in the final process of vehicle assembly, an external inspection device (function inspection facility) provided with functions such as whether all mounted ECUs have no assembly errors or whether these ECUs operate normally. ) Is used for inspection. In this external inspection device, a traveling pattern is instructed to an operator in order to establish a self-diagnosis start condition of the ECU. In order to inspect the ECU, an external inspection device is connected to the vehicle, and the self-diagnosis result of the ECU is acquired through the in-vehicle network.

  However, all ECU functional tests are performed in the final process of vehicle assembly. For this reason, ECU assembly errors and abnormal operation thereof are collectively detected after all the assembly operations are completed. Also, in order to establish the diagnosis start condition of the ECU, the external inspection device instructs the operator to travel pattern. However, with the advancement of electrical functions, the travel pattern increases, the load on the external inspection device and the worker The operation of is increasing. For this reason, in the type in which the ECU functional test is performed by the external inspection device, the test tact time is extended, and there are cases where it does not fit in the production scheduled tact.

  Although it is conceivable to use a plurality of inspection lines effectively (see Patent Document 1 below), even if such a configuration is used, the function inspection can be performed without intervention by artificial means. May not fit within the production schedule.

  In the conventional external inspection device, the self-diagnosis start condition is already established, and the inspection pattern that has already been inspected by the self-diagnosis is instructed again from the external inspection device, and the process is repeated. There was a waste.

Further, since the ECU is configured to acquire an ECU self-diagnosis result by connecting an external inspection device, an operation of acquiring the diagnosis result can be performed when the ECU self-diagnosis start condition is not satisfied. is there. Even if the diagnosis result is acquired under such a condition, there is a problem that the ECU is not inspected.
Japanese Patent Application Laid-Open No. 2004-132808.

  The present invention has been made in order to solve the above-described problems, and it is possible to reduce the inspection time required for the function inspection of the electronic control device and to make it possible to fit the production scheduled tact. And providing an inspection apparatus.

  In order to achieve such an object, an in-vehicle electronic control device inspection method according to the present invention is an in-vehicle electronic control device that inspects an electronic control device mounted on a vehicle using a self-diagnosis function of the electronic control device. In the inspection method, a small inspection device in which the electronic control device self-diagnose and a diagnosis start condition are stored is connected to an in-vehicle network, and the vehicle inspection speed, engine speed, The operation state of the vehicle is detected from the AT range state or the like, and it is determined whether or not the diagnosis start condition of the electronic control device is satisfied, and the diagnosis item that does not satisfy the diagnosis start condition is determined from the small inspection device. An external inspection device is notified, and the diagnosis start condition is satisfied once in the inspection process among the inspection target items for which the external inspection device is responsible for inspection. Only which comprises carrying out the inspection by the self-diagnosis of the electronic control unit with respect to non-test item corresponding to no diagnosis item.

  The inspection apparatus for an in-vehicle electronic control apparatus according to the present invention is an inspection apparatus for an in-vehicle electronic control apparatus that inspects an electronic control apparatus mounted on a vehicle using a self-diagnosis function of the electronic control apparatus. Has a small inspection device that stores a diagnostic item to be self-diagnosed and its diagnosis start condition and is connected to an in-vehicle network, and an external inspection device provided outside the vehicle, wherein the small inspection device is a vehicle inspection process. Means for detecting the operation state of the vehicle from the vehicle speed, engine speed, AT range state, etc., and means for determining whether the diagnosis start condition of the electronic control unit is satisfied from the detected vehicle operation state And means for notifying the diagnostic item from which the diagnosis start condition is not satisfied from the small inspection device to the external inspection device, and the external inspection device is responsible for the inspection itself. Means for instructing to carry out an inspection by self-diagnosis of the electronic control unit only for an uninspected item corresponding to a diagnostic item in which the diagnosis start condition has never been satisfied in the inspection step among certain inspection target items It is characterized by having.

  In the inspection method and the inspection apparatus of the present invention, the diagnosis items for which the diagnosis start condition has already been established in the previous inspection process and the inspection by the self-diagnosis of the electronic control device has been completed are repeatedly inspected again by the external inspection device side. Therefore, it is possible to distribute the equipment load on the external inspection apparatus side, reduce the inspection time required to inspect all the inspection target items, and keep the scheduled production tact.

  Embodiments according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a function inspection process of an electronic control unit (ECU), which is a final process of a vehicle assembly process to which the present invention is applied.

  This functional inspection process includes inspection processes such as a small recorder mounting process K0, a tester entrance process K1, an alignment process K2, a cutting angle process K3, and an F / C (function check) process K4, which are the leading processes. A side slip process K5 is provided. In addition to the function inspection processes K0 to K4, an inspection process called a repair process K6 is provided.

  The first small recorder mounting process K0 reads the vehicle information (ID) from the registration terminal device (computer) 1 in which the ECU diagnosis start condition list corresponding to the vehicle is registered and the VID label 2 of the vehicle connected thereto. The apparatus 3 and the small recorder (small inspection apparatus) 4 as a vehicle-mounted terminal device in which a list of vehicle diagnosis start conditions is stored.

  FIG. 2 is a block diagram showing the configuration of the small recorder 4. The small recorder 4 has a CPU 5, and a ROM 6, a RAM 7, a vehicle communication interface 8, a wireless interface 9, an input device 10, and an output device 11 are connected to the CPU 5. A list of diagnosis start conditions for the ECU of the vehicle is stored and registered in advance in the RAM 7 as vehicle information by ID, for example, vehicle type. The vehicle communication interface 8 is an interface for connecting the small recorder 4 to an in-vehicle network (not shown) inside the vehicle, and has a connector 12 for connecting with a diagnostic connector (not shown) of the vehicle. The wireless interface 9 is an interface for mainly communicating with the external inspection device 13 in the F / C process K4.

  The small recorder 4 cooperates with the CPU 5 by means of a program stored in the ROM 6 or RAM 7 to detect the vehicle operating state from the vehicle speed, engine speed, AT range state, etc. in the vehicle inspection process (vehicle (Operation state detection means), means for determining whether or not the diagnosis start condition of the ECU is satisfied from the detected operation state of the vehicle (diagnosis start condition success / failure determination means), and the diagnosis start condition is not satisfied Means (not-established item notification means) for notifying diagnosis items from the small recorder 4 to the external inspection device 13 are provided. In addition, the external inspection apparatus 13 side performs self-diagnosis only for the uninspected items corresponding to the diagnostic items for which the diagnosis start condition has never been established in the inspection process among the inspection target items for which the inspection is responsible. It has means (execution instruction means) for instructing to carry out the inspection.

  In the F / C process K4, an external inspection device (functional inspection facility) 13 provided outside the vehicle has functions such as whether all attached ECUs have no assembly errors or whether these ECUs operate normally. This is an inspection process. The external inspection apparatus 13 includes a host computer 15 connected to an inspection network including a tester line LAN 14 and a monitor 16 connected thereto.

  The list of FIG. 3 shows a part of the specification “SIS” of the vehicle whose ID is the vehicle identification number “VIN”. A list of diagnosis start conditions for the diagnosis items (1) to (7) of the ECU and The relationship between the functional inspection process and the repair process is shown together. Hereinafter, the entire list is referred to as an “all examination condition list” as necessary, and is used separately from the “diagnosis start condition list”.

  In the column of the diagnosis start condition list in this list of all test conditions, ECM (engine control module), ATCU (AT control unit), and BCM (body control unit) are listed as ECUs to be tested. Note that automatic transmissions (automatic transmissions) include a continuously variable transmission (CVT) and a stepped transmission. Here, the abbreviation “AT” is used particularly in the latter sense.

  These ECUs are mainly composed of a central processing unit (CPU), a storage device (RAM, ROM), and an input / output interface. In the case of ECM, for example, signals such as accelerator opening, throttle opening, engine speed, engine coolant temperature, intake air temperature, exhaust temperature, and transmission output speed are input as control data. In addition, these ECUs include a diagnostic connector (not shown) for performing data communication with the small recorder 4 and the external inspection device 13.

  The “diagnosis start condition” in the diagnosis start condition list indicates a condition (running pattern) at which self-diagnosis is started in these ECUs, and the contents differ depending on the diagnosis items (1) to (7). “VSP” in diagnosis items (1) to (3) means vehicle speed, and “VSP = 0”, “VSP> 10”, and “VSP> 120” are “vehicle speed zero”, “vehicle speed over 10 km / h”, “vehicle speed 120 km”. / Over h ”. “AT_POS” means a transmission position (AT range), and “AT_POS = 0” and “AT_POS = 2” indicate “parking” and “drive”. “STRG” means steering, and “STRG> +25” and “STRG <25” indicate snake angles “25 ° to the right” and “25 ° to the left”.

  The “failure code” is a code that is notified when a failure has occurred as a result of a self-diagnosis performed on the ECU with a predetermined diagnosis start condition. The result of the self-diagnosis is notified and accumulated in the access point 17 through the tester line LAN 14 wirelessly to the computer of the external inspection device 13 and is also recorded and accumulated in the computer of the work history management terminal device 18.

  “Installation”, “entrance”, “alignment”, and “cutting angle” shown in the column of the function inspection process in the list of all inspection conditions in FIG. 3 are concretely performed sequentially on the test line of the vehicle described in FIG. The circles in each column indicate that the diagnosis start condition is satisfied in these inspection steps.

  For example, in the “entrance” step, the diagnosis start condition of the diagnosis item (1) is satisfied. In the “alignment” step, the diagnosis start conditions of the diagnosis items (1) and (4) are satisfied. In the “cut angle” step, the diagnosis start conditions of the diagnosis items (1), (2), (4), (5), (6), and (7) are satisfied. Accordingly, when the inspection process proceeds in the order of “entrance”, “alignment”, and “cutting angle”, the diagnosis start condition is already established in the “entrance” process for the diagnosis item (1), and the self-diagnosis is performed. This means that it is not necessary to perform self-diagnosis again in the subsequent “alignment”, “cutting angle”, and “F / C” processes. In the inspection item (4), the diagnosis start condition is already established in the “alignment” step, the self-diagnosis is performed, and the result is obtained, and the subsequent “cut angle” “F / C” is obtained. This means that it is not necessary to conduct a self-diagnosis again in the process of “. Similarly, in the diagnosis items (2), (5), (6), and (7), the diagnosis start condition is already established in the “cutting angle” step, and the self-diagnosis is performed, and the result is obtained. This means that it is not necessary to perform self-diagnosis again in the subsequent “F / C” step.

  “F / C” is an inspection process performed by the external inspection apparatus 13, and a circle in the “F / C” column indicates an item (inspection target item) to be inspected in this inspection process. Yes. Here, it is shown that all of the diagnostic items (1) and (7) are inspection target items having the inspection responsibility in the external inspection device 13. However, since diagnostic items (1), (2), (4), and (7) have already undergone self-diagnosis and the results have been obtained, only the diagnostic item (3) is included in the “F / C” process. If the function test is performed, the original purpose of the function test can be achieved.

  “Repair” is a process for re-inspecting, and the circles in this column are items to be re-inspected because a negative inspection result was obtained by the functional inspection in the above-described inspection steps K1 to K4. It is shown that. In this example, two of the diagnostic items (6) and (7) are targets to be re-inspected in the repair process.

  FIG. 4 shows a comparison between the conventional method and the present embodiment (the present invention) as an inspection method performed by the external inspection device 13. FIG. 4 shows that (1), (4), and (6) of the diagnosis items (1), (3), (4), (6), and (7) have been inspected in the inspection process prior to the inspection process. It is assumed that. Conventionally, even when there are already diagnosed diagnostic items, all the examination items are inspected by the external inspection device 13. On the other hand, in the present embodiment (the present invention), the diagnostic items (1), (4), and (6) that have been inspected in the inspection process prior to the inspection process are not required to be inspected. The examination at 13 is not carried out, and only the diagnostic items (3) and (7) are carried out. This point is different from the conventional one.

  Although the results of the functional inspections performed in the inspection steps K1 to K4 are not clearly described in either FIG. 3 or FIG. 4, FIG. 3 is an inspection for diagnostic items (6) and (7). In the case where it is determined that the function is defective, the diagnosis items (6) and (7) are targets to be examined again (there is a circle) in the repair process of FIG.

  Next, the inspection method for the on-vehicle electronic control device according to the embodiment of the present invention will be described according to the flow of FIG. 5 and FIG.

  As a premise, the ID label (VID label 2) of the vehicle is pasted to the vehicle after offline after completing the assembly of the parts, and sent to the tester process of FIG.

  First, the operator reads the vehicle information (ID) from the VID label 2 by the reading device 3 connected to the registration terminal device 1 (computer 1), thereby registering the diagnosis start condition list corresponding to the vehicle. Obtained from the terminal device 1 and stored in the internal memory of the small recorder 4 and registered (S101).

  Next, the worker connects the small recorder 4 to the diagnostic connector of the vehicle and mounts it on the vehicle in the small recorder mounting process K0 which is the leading process of the inspection line (S102). As a result, the small recorder 4 in which the diagnostic items to be self-diagnosed by the electronic control unit and the diagnostic start conditions are stored is connected to the in-vehicle network inside the vehicle via the vehicle communication interface 8.

  Next, the operator turns on the power switch of the small recorder 4. The power (VDC) is supplied to the small recorder 4 and the operation of the small recorder 4 is started (S103). The small recorder 4 communicates with ECUs such as ECM, ATCU, and BCM through diagnostic connectors interconnected with the vehicle side, thereby monitoring the vehicle speed, engine speed, AT range state, etc. Is detected. Then, the small recorder 4 compares the detected operation state of the vehicle with the above-described list of diagnosis start conditions stored in its own memory (RAM 7), so that the diagnosis start condition of the ECU is satisfied. Determine whether or not. As a result, in the vehicle inspection steps K1 to K3, it is sequentially monitored whether or not the diagnosis start condition of each diagnosis item of the ECU is satisfied.

  First, in the first inspection process (tester entrance process K1), the operator brings the vehicle to the tester entrance as an operation by the operator (S104).

<Tester entrance process K1>
The small recorder 4 monitors the operation state of the vehicle in the tester entrance process K1 from the ECU (S105), compares it with the stored diagnosis start condition list (S106), and the operation state of the monitored vehicle is determined by the ECU. It is determined whether or not there is a condition that satisfies the diagnosis start condition, that is, whether or not there is a diagnosis item for which the diagnosis start condition is satisfied (S106). The function of step S105 corresponds to the vehicle operation state detection means described above with reference to FIG. 2, and the function of S106 corresponds to the diagnosis start condition success / failure determination means. And about the diagnostic item with which the diagnosis start conditions were satisfied, the self-diagnosis of ECU is implemented when the self-diagnosis is not carried out in the inspection process before the said inspection process.

  In the case of the example in FIG. 3, if the diagnostic start condition “VSP = 0” (vehicle speed zero) is satisfied in the tester entrance process K1, the small recorder 4 sets and stores an inspection completion flag (S107). In other words, if it is considered that the list of all inspection conditions in FIG. 3 is composed of an inspection presence / absence map in which uninspected (x mark) and inspected (o mark) are combined, this inspection is completed by setting the inspection completion flag. Update the presence / absence map. Thereafter, it is checked whether or not the F / C process K4 has been reached (S108). Since the process has not yet reached the F / C process K4, the process returns from step S108 to step S104.

<Alignment process K2>
The vehicle enters the second inspection process (alignment process K2). In the alignment step K2, as an operation by the worker, the worker positions the vehicle on the drum 19 to make a stationary running inspection possible, and then checks the wheel alignment (S104).

  The small recorder 4 monitors the operation state of the vehicle from the ECU (S105), compares it with the list of diagnosis start conditions (S106), and whether the monitored operation state of the vehicle satisfies the diagnosis start condition of the ECU. Whether or not there is a diagnosis item for which a diagnosis start condition is satisfied is determined (S106). And about the diagnostic item with which the diagnosis start conditions were satisfied, the self-diagnosis of ECU is implemented when the self-diagnosis is not carried out in the inspection process before the said inspection process.

  In the case of the example in FIG. 3, the small recorder 4 performs the inspection when the diagnosis start condition “AT_PS = 0” (parking) of the diagnosis item (4) is satisfied and the corresponding ATCU self-diagnosis is performed. A completion flag is set (S107), and the inspection presence / absence map is updated by entering the inspection completed (o mark) in the corresponding diagnostic item column. In this alignment step K2, the diagnosis start condition of “VSP = 0” (vehicle speed zero) is satisfied, but since the inspection has already been performed in the previous tester entrance step K1, the inspection is omitted for this diagnosis item. To do. Then, the process returns from step S108 to step S104.

<Cutting angle process K3>
The vehicle enters the third inspection step (cutting angle step K3), and the snake angle of the vehicle is inspected as an operation by the operator (S104). The small recorder 4 monitors the operation state of the vehicle from the ECU (S105), compares it with the list of diagnosis start conditions (S106), and determines whether or not the operation state is a condition that satisfies the diagnosis start condition, that is, the diagnosis start. It is determined whether or not there is a diagnostic item that satisfies the condition. And about the diagnostic item with which the diagnosis start conditions were satisfied, the self-diagnosis of ECU is implemented when the self-diagnosis is not carried out in the inspection process before the said inspection process.

  In the case of the example in FIG. 3, the small recorder 4 has the diagnosis start condition of the inspection item (5) when “VSP> 10” (vehicle speed> 10 km / h) as the diagnosis start condition of the diagnosis item (2) is satisfied. When “AT_PS = 2” (drive) is satisfied, when the diagnosis start condition “STRG> + 25 °” (snake angle> 25 ° to the right) of the diagnosis item (6) is satisfied, and diagnosis item (7) When the diagnosis start condition “STRG> 25” (snake angle> left 25 °) is satisfied, a self-diagnosis is performed, and an examination completion flag is set accordingly (S107). In this turning angle process K3, the diagnosis start conditions of the vehicle speeds “VSP = 0” and “AT_PS = 0” are satisfied, but the inspection has already been performed in the previous tester entrance process K1 and alignment process K2, The inspection is omitted for this diagnostic item. Then, the process returns from step S108 to step S104.

<F / C process K4>
Following the above, the vehicle enters a fourth inspection process (F / C process K4). The determination in step S108 is affirmative (S108), and the program proceeds to step S109. The small recorder 4 is an item for which the above-described examination completion flag is not obtained, that is, a diagnostic item for which the diagnosis start condition is not satisfied (item for which diagnosis start condition is not satisfied) (x mark in the list of all inspection conditions in FIG. 3). Is notified to the external inspection device 13 (S109). The function of this step S109 corresponds to the unsatisfied item notification means described above with reference to FIG. This notification is made when the small recorder 4 wirelessly accesses the computer of the external inspection apparatus 13 from the access point 20 via the tester line LAN 14.

  Moving to the flow of FIG. 6, the external inspection device 13 is the item for which the diagnosis start condition is not satisfied, which is notified for each inspection process of the entrance, alignment, and turning angle with respect to all the inspection target items for which the self is responsible. (S110), it is checked whether or not the diagnosis start condition is not yet established (not inspected) for each of the inspection target items having the inspection duty (S111). If the inspection target item is an inspection item for which the diagnosis start condition has already been established (NO in S111), the functional inspection has already been completed, and it is not necessary to perform the functional inspection again by the external inspection apparatus 13, so the inspection target The corresponding inspection target item is deleted from the list of items, and the inspection presence / absence map is updated (S112).

  If the inspection target item is still a diagnosis start condition not yet established (not inspected) (YES in S111), a function inspection on the external inspection device 13 side is performed. In the example of FIG. 3, all of the diagnostic items (1) to (7) are examination targets, among which the diagnostic items (1), (2), (4) to (7) have already undergone self-diagnosis, Since the result is obtained, in the F / C process, the function test is performed only for the diagnostic item (3).

  Therefore, the external inspection device 13 and the vehicle are connected by a wire 21 to secure a line for transmitting an instruction to the worker. However, this line can be secured by radio. Then, the external inspection device 13 instructs the worker to perform a traveling operation for the inspection items for which the diagnosis start condition is not satisfied. In the above example, only for the inspection item (2), the external inspection device 13 generates a traveling pattern (diagnosis start condition) in the F / C process (S113), and the external inspection device 13 gives the traveling instruction to the operator. It performs (S114). In response to this, the operator performs a predetermined traveling operation and the ECU self-diagnosis is performed (S115). The functions of steps S110 to S115 correspond to the execution instruction unit described above with reference to FIG.

  Finally, it is inspected whether or not the vehicle has a problem (S116). If there is no problem, the small recorder 4 is removed from the vehicle (S117), and the vehicle is shipped (S118). If there is a problem, the process proceeds to FIG. 7 and the next repair work (S119) is performed.

<Repair work and subsequent inspection>
If there is a problem with the vehicle in the vehicle assembly process or inspection process, a repair operation is performed to correct this (S119 in FIG. 7). After the correction, the vehicle is put on the inspection line again and re-inspected.

  This process is shown as a post-repair re-inspection process K6 on the lower side of FIG. In the post-repair re-inspection step K6, as suggested in FIG. 1, a functional inspection is again performed on the ECU of the vehicle to be re-inspected from the work history management terminal device 18 comprising a computer that records the work history up to that point. You are instructed to do so. This reinspection instruction is made by accessing the small recorder 4 connected to the ECU from the work history management terminal device 18 via the access point 20 and the tester line LAN 14 wirelessly.

  By the way, vehicle troubles discovered by inspection include those in which a failure history remains in the ECU and others that do not remain.

  In step S120 of FIG. 7, if there is the above-described failure code (see FIG. 3) (YES in S120), that is, if there is a failure history, the inspection completion flag of the failure target ECU is cleared for all diagnostic items (S121). And all the inspection completion flags of the related ECUs communicating with the ECU are cleared (S122). Then, the vehicle is reintroduced to the beginning of the inspection process (small recorder mounting process K0) (S123), and reinspection is performed.

  The reason for clearing not only the failure target ECU but also the inspection completion flag of the related ECU is that the related ECUs exchange messages with each other, so the state of one ECU is influenced by the state of the other related ECUs. Because there is a possibility of having received. FIG. 8 shows the relationship among the mutually related ECUs. ECM, BCM, AT, USM, 4WD, 4WS, A-Bag, and VDC are listed as examples of such ECUs. As shown in the list of FIG. 8 with a circle, for example, one ECM is related to an ECU of AT, USM, and VDC, one BCM is related to USM, and one AT is It is closely related to ECM, AT, USM, VDC ECUs, and so on. For this reason, even if one of the related ECUs is determined to be faulty, there is still a possibility that it has been determined to be faulty because it actually communicates with another related ECU.

  Returning to step S120 of FIG. 7, if there is no failure code (see FIG. 3) described above (NO in S120), that is, if there is no failure history, the repair operator performs repair work results (work) (History) is input (S124), and from the input work history, the work target ECU, more precisely, information specifying this is acquired (S125). Then, all the inspection completion flags of the work target ECU (ECU having a failure history) are cleared (S126). Further, all the inspection completion flags of the related ECUs communicating with the ECU are also cleared (S127).

  As described above, the inspection completion flag of the related ECU is cleared along with the repair work for the following reason. For example, in the repair work, work such as door removal, door mirror removal, AT removal, and air bag removal is performed as shown as an example in FIG. In these detaching operations, circles are attached in FIG. 9 to indicate that there is a relationship with the related ECUs such as ECM, BCM, AT, USM, 4WD, 4WS, A-Bag, VDC, etc. In between, the wiring is cut once. Specifically, the connection connector for wiring between them is removed. For this reason, there is a possibility that a connection error may occur at the time of reconnection of wiring after the repair work is completed, and it becomes necessary to perform a function test of the ECU again.

  Therefore, after clearing the inspection completion flag of the work target ECU and clearing the inspection completion flag of the related ECU communicating therewith, the vehicle is re-injected into the head of the inspection process (small recorder mounting process K0) and the ECU Is re-inspected (S128).

  In the above embodiment, the diagnostic items for which the diagnosis start condition is established in each of the inspection steps K0 to K3 are performed by performing the self-diagnosis of the ECU when the self-diagnosis is not performed in the inspection step prior to the inspection step. Only the diagnostic items for which the start condition is not satisfied are notified from the small recorder 4 to the external inspection device 13. However, the self-diagnosis of the ECU is performed regardless of whether or not the self-diagnosis is performed in the inspection process prior to the inspection process, and the diagnosis items for which the diagnosis start condition is not satisfied are transferred from the small recorder 4 to the external inspection device 13. Can also be notified.

  Further, instead of notifying the diagnosis item for which the diagnosis start condition is not satisfied, the diagnosis item for which the diagnosis start condition is satisfied can be notified from the small recorder 4 to the external inspection device 13. Furthermore, both the diagnosis item for which the diagnosis start condition is not satisfied and the diagnosis item for which the diagnosis start condition is satisfied can be notified from the small recorder 4 to the external inspection device 13.

It is the schematic which shows the test | inspection method of the vehicle-mounted electronic control apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the small recorder as a vehicle-mounted terminal device used with the test | inspection method of this invention. It is the figure which showed the list | wrist of all the test conditions which put together the list | wrist of the diagnosis start conditions used with the test | inspection method of this invention, the function test process, and the repair process. It is the figure which showed the method of the function test | inspection implemented with the external test | inspection apparatus by the test | inspection method of this invention compared with the former. It is the figure which showed 1/3 of the flow which showed the inspection method of this invention. It is the figure which showed 2/3 of the flow which showed the inspection method of this invention. It is the figure which showed 3/3 of the flow which showed the inspection method of this invention. It is the figure which showed the relationship between failure ECU and related ECU. It is the figure which showed the relationship between a repeller operation | work and related ECU.

Explanation of symbols

1 registration terminal device (computer),
2 VID label,
3 equipment,
4 Small recorder (small inspection device),
5 CPU,
6 ROM,
7 RAM,
8 Vehicle communication interface,
9 Wireless interface,
10 input devices,
11 output device,
12 connectors,
13 External inspection equipment (functional inspection equipment)
14 LAN for tester line,
15 host computer,
16 monitor,
17 access point,
18 work history management terminal device,
19 drums,
20 access points,
21 Wired,
22 Access point.

Claims (12)

In an in-vehicle electronic control device inspection method for inspecting an electronic control device mounted on a vehicle using a self-diagnosis function of the electronic control device,
Connected to the in-vehicle network a small inspection device that stores the diagnostic items to be self-diagnosed by the electronic control device and the diagnosis start conditions,
By detecting the operation state of the vehicle from the vehicle speed, the engine speed, the AT range state, etc. in the vehicle inspection process by the small inspection device, it is determined whether the diagnosis start condition of the electronic control device is satisfied, Notifying the diagnostic item from which the diagnosis start condition is not established to the external inspection device from the small inspection device,
The external control device side is the self-control device only for the untested items corresponding to the diagnostic items for which the diagnosis start condition has never been established in the testing process among the items to be inspected for which the external testing device is responsible. Carry out diagnostic tests,
An inspection method for an in-vehicle electronic control device. The inspection process is composed of a plurality of inspection processes, and each inspection process includes a diagnosis item having the same diagnosis start condition as an inspection target item.
For the diagnosis item for which the diagnosis start condition is satisfied in each inspection process, the self-diagnosis of the electronic control device is performed when the self-diagnosis is not performed in the inspection process prior to the inspection process, and the diagnosis start condition Notifying the external inspection device of diagnostic items from which the small inspection device is not established,
The inspection method of the vehicle-mounted electronic control apparatus of Claim 1 characterized by the above-mentioned. Instead of notifying a diagnosis item that does not satisfy the diagnosis start condition, the diagnosis item that satisfies the diagnosis start condition is notified from the small inspection device to the external inspection device.
The in-vehicle electronic control device inspection method according to claim 2. Notifying the external inspection device from the small inspection device together with the diagnosis result of the diagnostic item for which the self-diagnosis has been made,
The inspection method of the vehicle-mounted electronic control apparatus of Claim 1 or 2 characterized by the above-mentioned. The external inspection device searches for diagnostic items notified from the small inspection device, determines unexamined items that have never been self-diagnosed through an inspection process prior to the external inspection device, Inspecting the electronic control device for inspection items,
The inspection method of the vehicle-mounted electronic control apparatus in any one of Claims 1-4 characterized by the above-mentioned.   3. The in-vehicle electronic control device inspection according to claim 1, wherein when the electronic control device is inspected again after the repair operation, the electronic control device is inspected only for inspection items related to the repair operation. Method. When the diagnosis result of the electronic control device notified from the small inspection device to the external inspection device is a malfunction, the inspection completion flag of the malfunctioning electronic control device is cleared and the malfunctioning electronic control device Clear the inspection complete flag of other electronic control devices related to
From the beginning, the electronic control device is inspected using its self-diagnosis function,
The in-vehicle electronic control device inspection method according to claim 6. In an in-vehicle electronic control device inspection device that inspects an electronic control device mounted on a vehicle using a self-diagnosis function of the electronic control device,
The electronic control device has a diagnostic item for self-diagnosis and a diagnosis start condition thereof, and has a small inspection device connected to the in-vehicle network, and an external inspection device provided outside the vehicle,
The small inspection device detects a vehicle operation state from a vehicle speed, an engine speed, an AT range state, etc. in the vehicle inspection process, and a diagnosis start condition of the electronic control device is determined from the detected vehicle operation state. Means for determining whether or not established, and means for notifying the diagnostic item from which the diagnosis start condition is not established from the small inspection apparatus to an external inspection apparatus,
The external control device is self-checking of the electronic control device only for untested items corresponding to diagnostic items for which the diagnosis start condition has never been satisfied in the test process among the test target items for which the self is responsible for testing. Having means to instruct to perform a diagnostic examination;
An inspection apparatus for an in-vehicle electronic control device. The inspection process is composed of a plurality of inspection processes, and each inspection process includes a diagnosis item having the same diagnosis start condition as an inspection target item.
The small-sized inspection device performs self-diagnosis of the electronic control unit when the diagnosis item for which the diagnosis start condition is satisfied in each inspection step is not self-diagnosed in the inspection step prior to the inspection step. And a means for notifying the external inspection device of diagnostic items for which the diagnosis start condition is not satisfied.
The in-vehicle electronic control device inspection device according to claim 8. The small inspection apparatus has means for notifying the external inspection apparatus of a diagnostic item for which the diagnosis start condition is satisfied, instead of means for notifying a diagnosis item for which the diagnosis start condition is not satisfied,
The in-vehicle electronic control device inspection device according to claim 9. The small inspection device has means for notifying the external inspection device of the diagnostic items for which the self-diagnosis has been made, together with the diagnosis result,
10. The inspection apparatus for an on-vehicle electronic control device according to claim 8 or 9. The external inspection device searches for a diagnostic item notified from the small inspection device, determines an uninspected item that has never been self-diagnosed through an inspection process prior to the external inspection device, Means for instructing to inspect the electronic control device for inspection items;
The in-vehicle electronic control device inspection device according to any one of claims 8 to 11.

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