JP2008068676A - Method and device for rewriting individual performance information of on-vehicle unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily perform management of a device for correction of individual performance information accompanying parts replacement and a program for correction of the individual performance information in the same device. <P>SOLUTION: When the parts of an automatic transmission body 2 is exchanged at a service shop, the serial number of the automatic transmission body 2 and parts information of the parts to be exchanged are transmitted from a client terminal 7 to a host computer 6 of a vehicle manufacturer. At the host computer 6 side, the individual performance information of the automatic transmission body corresponding to the serial number is read out from the database D1 based on the serial number of the automatic transmission body 2 to be received. The portion corresponding to the parts to be exchanged in the individual performance information is determined based on the parts information, and the individual performance information is rewritten in such a state that the portion is initialized. The individual performance information after being corrected is transmitted to the client terminal 7 at the service shop and written in an electronic control device 3 of the vehicle 1 through a service tool 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rewriting method and a rewriting device for individual performance information of a unit stored in a control device of an in-vehicle unit.

  In the manufacture of a vehicle, usually, an in-vehicle unit mounted on the vehicle and an electronic control device for controlling the in-vehicle unit are manufactured in separate manufacturing factories and then shipped to an assembly plant. A production system has been adopted in which electronic control devices are assembled and integrated.

  Examples of the on-vehicle unit and the electronic control device that are manufactured and assembled in this way include an automatic transmission main body and an electronic control device that controls the automatic transmission main body. The automatic transmission body is provided with electronic parts such as solenoids for various actuators for shift control and hydraulic control. The automatic transmission main body has individual differences, and the electronic components provided in the automatic transmission main body have some variation in output characteristics reflecting the shape variation generated in the manufacturing process. Such individual differences in the automatic transmission and variations in the output characteristics of the electronic components lead to variations in the operation characteristics of the entire automatic transmission body, more specifically, variations in the speed change performance.

  For this reason, when performing various controls related to shifting of the automatic transmission main body through the electronic control device, the individual performance information inherent to the automatic transmission main body including individual differences of the automatic transmission main body and variations in output characteristics of electronic components, etc. Unless the control contents of the various controls are corrected based on the above, it is not possible to suppress variations in operation characteristics of the entire automatic transmission. Therefore, in Patent Document 1, after the assembly of the automatic transmission main body and the electronic control device at the assembly factory, the individual performance of the automatic transmission main body used for correcting the control contents in various controls of the automatic transmission main body in the electronic control device. Information is written.

Specifically, the individual performance information of the automatic transmission main body is written into the electronic control unit through the following steps.
-After manufacturing the automatic transmission main body at the manufacturing plant, in the inspection process of the finished product, obtain performance information of the automatic transmission main body alone. More specifically, a control signal is sent to the automatic transmission main body to operate various solenoids for shift control and hydraulic control provided in the automatic transmission main body, and shifting of the automatic transmission main body is performed through the operation. And the characteristic data output through the operation | movement of the automatic transmission main body based on the said control signal are acquired as intrinsic | native individual performance information in the said automatic transmission main body.

-The obtained individual performance information of the automatic transmission main body is associated with the individual identification information (such as a serial number) of the automatic transmission main body to create a database.
After the automatic transmission main body and the electronic control device are assembled at the assembly factory, the individual performance information of the automatic transmission is read from the database based on the individual identification information of the automatic transmission main body and written into the electronic control device.

Thus, by writing the individual performance information of the corresponding automatic transmission main body to the electronic control unit, when performing various controls of the automatic transmission main body, the various controls described above are performed based on the individual performance information of the automatic transmission main body. The control content can be corrected, and through this correction, variations in the operation characteristics of the entire automatic transmission can be suppressed.
JP 2005-337387 A (paragraph [0026], FIG. 2)

  By the way, in an in-vehicle unit such as a main body of an automatic transmission, there are cases where parts are replaced at the time of repair at a service factory when a failure occurs. When parts are exchanged in this way, the unique individual performance of the replaced parts affects the operating characteristics of the entire automatic transmission body, so the replacement parts in the individual performance information written in the electronic control unit It is desired to correct the part corresponding to. Therefore, in the service factory, the individual performance information stored in the electronic control device is read, the part corresponding to the replacement part in the individual performance information is corrected, and the corrected individual performance information is written in the electronic control device. It is conceivable to rewrite the individual performance information to a corresponding one after parts replacement.

  However, if each individual service factory is rewriting the individual performance information associated with the parts replacement as described above, the change of the device for correcting the part corresponding to the replacement parts in the individual performance information, When a program for implementing the above-described correction in the apparatus is to be changed, the change must be made at each service factory. For this reason, it is inevitable that it takes time to manage (change, etc.) the apparatus for performing the correction and the program for performing the correction.

Such a problem is not limited to the automatic transmission main body, but is also common to other in-vehicle units mounted on the vehicle.
The present invention has been made in view of such circumstances, and its purpose is to easily manage a device for correcting individual performance information accompanying component replacement and a program for correcting individual performance information in the device. An object of the present invention is to provide a rewriting method and rewriting device for individual performance information of an in-vehicle unit that can be performed.

In the following, means for achieving the above object and its effects are described.
In order to achieve the above object, according to the first aspect of the present invention, the individual performance information of the in-vehicle unit written in the control device of the in-vehicle unit is rewritten according to the replacement of the parts in the in-vehicle unit. In the performance information rewriting method, parts replacement is performed for a host computer in which the individual performance information of the in-vehicle unit is associated with the individual identification information of the in-vehicle unit in a database via a client terminal that can communicate with the host computer. The individual identification information of the in-vehicle unit performed and the parts information of the replacement parts are sent, and the individual performance information of the in-vehicle unit is read from the database based on the individual identification information of the in-vehicle unit in the host computer, and the individual performance information in the individual performance information New individual performance information by modifying the part corresponding to the replacement part After the creation, the new individual performance information is transmitted to the client terminal and stored in the database, and the new individual performance information received by the client terminal is written in the control device of the in-vehicle unit. The gist is to rewrite the individual performance information.

  According to the above method, the client terminal is installed in a service factory or the like where parts are replaced in the event of a failure in the in-vehicle unit, and the individual in-vehicle unit that has performed part replacement from the client terminal to the host computer when replacing the in-vehicle unit parts. Identification information and part information of replacement parts are transmitted. Then, the correction of the part corresponding to the replacement part in the individual performance information of the in-vehicle unit is performed with respect to the individual performance information of the in-vehicle unit read from the database of the host computer based on the individual identification information. It is done using. Thereafter, the individual performance information corrected by the host computer is transmitted to the client terminal of the service factory, and is written in the control device by the service factory.

  In this way, since the correction of the part corresponding to the replacement part in the individual performance information of the in-vehicle unit is performed by the host computer, the device for performing the correction in this case and the management of the program for performing the correction This means management of the host computer and a program for executing the above correction on the host computer. Therefore, it is not necessary to manage the device for performing the above correction and the program for performing the correction for each service factory in each place, it is only necessary to manage the host computer and the program on the host computer. Management can be performed easily.

  In the host computer, the individual performance information of the in-vehicle unit is associated with the individual identification information of the in-vehicle unit and is made into a database, and the individual identification information of the in-vehicle unit is transmitted from the client terminal to the host computer. Therefore, on the host computer side, the individual performance information of the in-vehicle unit to be corrected can be efficiently searched based on the individual identification information sent from the client terminal.

  In addition, when the individual performance information of the in-vehicle unit is corrected in the host computer, the individual performance information after correction is stored in the database. Therefore, the individual performance information of the in-vehicle unit stored in the database of the host computer is always stored. Keep up to date.

  According to a second aspect of the present invention, in the first aspect of the present invention, the host computer has the individual performance information relating to the parts of the in-vehicle unit associated with the individual identification information of the parts in a database. The individual identification information of the replaced part is sent via the client terminal, and the correction of the part corresponding to the replacement part of the individual identification information of the in-vehicle unit in the host computer is based on the individual identification information of the replaced part. The gist is that the individual performance information of the same part is read from the database, and the part corresponding to the replacement part of the individual identification information of the in-vehicle unit is replaced by the individual performance information.

  According to the above method, correction of the part corresponding to the replacement part in the individual identification information of the in-vehicle unit performed by the host computer is performed by replacing the part with the individual performance information of the part after replacement. The individual performance information of the subsequent in-vehicle unit can be made appropriate as the individual performance information of the in-vehicle unit after the parts replacement.

  Also, if the individual performance information of the in-vehicle unit is corrected at the service factory in each region, the individual performance information of the replacement part is transferred from the part manufacturing factory to the service factory in each region using IC memory, barcode, etc. It takes too much time to manage the transportation. However, according to the above method, the individual performance information of the replacement part can be transported to the host computer by using an IC memory, a barcode or the like, and the labor for managing the transport can be reduced.

  In the host computer, the individual performance information related to the parts of the in-vehicle unit is stored in a database in association with the individual identification information of the parts, and the individual identification information of the replacement parts is transmitted from the client terminal to the host computer. . Therefore, on the host computer side, the individual performance information of the replaced part can be efficiently searched based on the individual identification information sent from the client terminal.

  According to a third aspect of the present invention, in the first aspect of the present invention, the part corresponding to the replacement part of the individual identification information is corrected by initializing the part.

  According to the above method, the correction of the part corresponding to the replacement part in the individual identification information performed by the host computer is performed through a simple method of initializing the part, so that the process for the correction becomes complicated. I'm sorry.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a service tool is connected to the control unit of the in-vehicle unit for transmission of the individual identification information of the in-vehicle unit to the host computer. Then, the individual identification information stored in the control device is read by the service tool, and then the service tool is disconnected from the control device and connected to the client terminal. In this state, the service tool passes through the client terminal. The new individual performance information is read out by the service tool connected to the client terminal with respect to the writing of the new individual performance information received by the client terminal to the control unit of the in-vehicle unit. And then disconnect the service tool from the client terminal. It was assumed to be performed by connecting to the control device away.

  According to the above method, simply by switching and connecting the service tool between the control device and the client terminal, the in-vehicle unit individual performance information is transmitted to the host computer, and the corrected individual performance information is transmitted to the control device. Since writing can be executed, the workability can be improved by simplifying those operations.

  In the invention according to claim 5, in the invention according to claim 4, the service tool reads the failure information stored in the device when connected to the control device to read the individual identification information of the in-vehicle unit, The failure information is also transmitted to the host computer when connected to the client terminal to transmit the individual identification information to the host computer.

  When the identification information of the in-vehicle unit is transmitted from the service tool to the host computer via the client terminal, the failure information of the in-vehicle unit is also transmitted to the host computer at the same time. This time can be shortened. Therefore, when the failure analysis of the onboard unit based on the failure information is performed on the host computer side, the failure analysis can be efficiently performed.

The invention according to claim 6 is the gist of the invention according to any one of claims 1 to 5, wherein the replacement part is an electronic part.
Although the replacement of the electronic component greatly affects the operation characteristics of the in-vehicle unit, after the replacement of the electronic component, the individual performance information of the in-vehicle unit written in the control device is rewritten to an appropriate one. And since the control content of various control of a vehicle-mounted unit is correct | amended based on the rewritten individual performance information, the big influence on the operating characteristic of a vehicle-mounted unit by replacement | exchange of the said electronic component can be suppressed.

  In the invention of claim 7, in the in-vehicle unit individual performance information rewriting device for rewriting the individual in-vehicle unit performance information written in the in-vehicle unit control device in accordance with the replacement of the components in the in-vehicle unit, The individual performance information of the in-vehicle unit is associated with the individual identification information of the in-vehicle unit in a database, and the individual performance information of the in-vehicle unit is read from the database based on the individual identification information of the in-vehicle unit that has been replaced. A host computer that creates a new individual performance information by correcting a part corresponding to the replacement part in the individual performance information based on the parts information of the vehicle, and individual identification information of the in-vehicle unit that has exchanged parts for the host computer And transmission means for transmitting part information of replacement parts, and the host computer Reading means for reading a new individual performance information created in over data, with a, a rewriting means for rewriting the individual performance information of the controller by the new individual performance information read by the reading means.

  The transmission unit, the reading unit, and the rewriting unit are provided in a service factory or the like where parts are replaced when a failure occurs in the in-vehicle unit. When the parts of the in-vehicle unit are replaced, the transmission unit transmits the individual identification information of the in-vehicle unit that has undergone part replacement and the part information of the replacement part to the host computer. Then, the correction of the part corresponding to the replacement part in the individual performance information of the in-vehicle unit is performed with respect to the individual performance information of the in-vehicle unit read from the database of the host computer based on the individual identification information. It is done using. Thereafter, the individual performance information corrected by the host computer is read by the reading means of the service factory, and written to the control device by the rewriting means at the service factory.

  In this way, since the correction of the part corresponding to the replacement part in the individual performance information of the in-vehicle unit is performed by the host computer, the device for performing the correction in this case and the management of the program for performing the correction This means management of the host computer and a program for executing the above correction on the host computer. Therefore, it is not necessary to manage the device for performing the above correction and the program for performing the correction for each service factory in each place, it is only necessary to manage the host computer and the program on the host computer. Management can be performed easily.

  In the host computer, the individual performance information of the in-vehicle unit is made into a database in association with the individual identification information of the in-vehicle unit, and the individual identification information of the in-vehicle unit is transmitted to the host computer by the transmitting means. For this reason, on the host computer side, the individual performance information of the in-vehicle unit to be corrected can be efficiently retrieved based on the individual identification information transmitted by the transmission means.

[First Embodiment]
Hereinafter, a first embodiment in which the present invention is applied to rewriting of individual performance information of an automatic transmission main body mounted on a vehicle will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, a vehicle 1 is equipped with an automatic transmission main body 2 that performs a shift operation based on hydraulic pressure, and an electronic control device 3 for controlling the automatic transmission main body 2. The automatic transmission main body 2 is provided with an actuator 5 for speed change control and hydraulic pressure control, and the actuator 5 includes electronic components such as a solenoid. The automatic transmission main body 2 has individual differences. Further, electronic components such as solenoids provided in the automatic transmission main body 2 have variations in output characteristics. For this reason, due to these individual differences and variations, the automatic transmission main body 2 varies in operation characteristics such as shift performance for each individual.

  In consideration of this, in the storage area of the electronic control unit 3, unique individual performance information of the entire automatic transmission main body 2 including individual differences of the automatic transmission main body 2 and variations in output characteristics of the electronic components is obtained. For example, it is written by the method described in the “Background Art” column. Then, when performing various types of control related to shifting of the automatic transmission main body 2 through the electronic control unit 3, the control contents of the various types of control are corrected based on the written individual performance information. Such correction of the control content can suppress variations in the operation characteristics of the automatic transmission main body 2 as a whole.

  By the way, when the parts of the automatic transmission main body 2 due to a failure are replaced at the service factory, for example, the solenoid is replaced, the individual performance of the replaced parts affects the operation characteristics of the automatic transmission main body 2 as a whole. The part corresponding to the replacement part in the individual performance information of the automatic transmission main body 2 written in the electronic control unit 3 is preferably corrected. For this reason, when the parts of the automatic transmission main body 2 are replaced, new automatic performance information 2 after the above correction is written in the electronic control device 3, thereby the automatic transmission main body 2 in the electronic control device 3. The individual performance information is rewritten.

  Here, a rewriting apparatus for rewriting the individual performance information will be described. The rewriting device includes a host computer 6, a client terminal 7, a service tool 8, and the like.

  The host computer 6 is installed at a vehicle manufacturer or the like, and associates individual performance information of the automatic transmission main body 2 acquired at the manufacturing factory with individual identification information (such as a serial number) of the automatic transmission main body 2. It is databased as database D1. Then, the host computer 6 reads the individual performance information corresponding to the serial number from the database D1 based on the serial number of the automatic transmission main body 2 whose parts have been replaced at the service factory. Furthermore, the host computer 6 determines which part of the read individual performance information corresponds to the replacement part based on the part information (name, etc.) of the replacement part in the automatic transmission main body 2. Recreate the individual performance information in the state that is initialized.

  The client terminal 7 is installed in a service factory or the like and is connected to the host computer 6 so as to be communicable. In the client terminal 7, when the serial number of the automatic transmission body 2 and the parts information of the replacement parts are input, the input serial number and the parts information of the replacement parts of the automatic transmission body 2 are input to the host computer 6. Send. The client terminal 7 can read the individual performance information recreated by the host computer 6.

  The service tool 8 is provided in a service factory or the like as with the client terminal 7. The service tool 8 can input the individual performance information of the automatic transmission main body 2 and can be connected to the electronic control device 3 of the vehicle 1. Further, the service tool 8 has a function of writing individual performance information to the electronic control device 3.

Next, an individual performance information rewriting method using the above rewriting device will be described with reference to the flowchart of FIG.
When a part (solenoid or the like) of the automatic transmission main body 2 is replaced at a service factory, the operator can obtain the serial number of the automatic transmission main body 2 and the part information (name and the like) of the replaced part, for example, manually. To the client terminal 7 (S101). Thereafter, the serial number of the automatic transmission main body 2 and the parts information of the replacement parts are transmitted from the client terminal 7 to the host computer 6 of the vehicle manufacturer (S102).

  On the host computer 6 side, based on the received serial number of the automatic transmission body 2, the individual performance information of the automatic transmission body corresponding to the serial number is read from the database D1 (S103). Then, the part corresponding to the replacement part in the read individual performance information is determined based on the part information, and the individual performance information is recreated with the part initialized (S104). By recreating the individual performance information in this way, the part corresponding to the replacement part in the individual performance information is corrected. Thereafter, the corrected individual performance information is stored in the database D1 (S105), and the individual performance information is transmitted to the client terminal 7 of the service factory (S106).

  At the service factory, the client device 7 reads the corrected individual performance information, and after the operator inputs the received corrected individual performance information to the service tool 8 by hand, for example, the service tool 8 The modified individual performance information stored in the service tool 8 connected to the electronic control device 3 is written into the electronic control device 3 (S107). By writing the corrected individual performance information into the electronic control unit 3, the individual performance information of the automatic transmission main body 2 in the electronic control unit 3 is rewritten.

According to the embodiment described in detail above, the following effects can be obtained.
(1) When replacing the parts of the automatic transmission body 2 at the service factory, the serial number of the automatic transmission body 2 and the parts information of the replacement parts are transmitted from the client terminal 7 to the host computer 6. The correction of the part corresponding to the replacement part in the individual performance information of the automatic transmission main body 2 is performed on the individual performance information of the automatic transmission main body 2 read from the database D1 of the host computer 6 based on the individual identification information. On the other hand, it is performed using the part information of the replacement part. Thereafter, the individual performance information corrected by the host computer 6 is transmitted to the client terminal 7 and written in the electronic control unit 3 at the service factory.

  As described above, since the host computer 6 corrects the portion corresponding to the replacement part in the individual performance information of the automatic transmission main body 2, the apparatus for performing the correction in this case and the correction for performing the correction are performed. The management of the program means the management of the program for executing the above correction on the host computer 6 and the host computer 6. Therefore, it is not necessary to manage the device for performing the above-mentioned correction for each service factory in each place and the program for executing the correction, and only manage the vehicle manufacturer's host computer 6 and the program on the host computer 6. It becomes easy to manage it.

  (2) In the host computer 6, the individual performance information of the automatic transmission main body 2 acquired at the manufacturing factory is associated with the serial number of the automatic transmission main body 2 and databased as a database D 1. Further, the serial number of the automatic transmission main body 2 is transmitted from the client terminal 7 to the host computer 6. Therefore, on the host computer 6 side, the individual performance information of the automatic transmission main body to be corrected can be efficiently retrieved based on the serial number sent from the client terminal 7.

  (3) When the individual performance information of the automatic transmission main body 2 is corrected by the host computer 6, the corrected individual performance information is stored in the database D1, and therefore the automatic transmission main body stored in the database D1. The individual performance information can be kept up to date.

  (4) Since correction of the part corresponding to the replacement part in the individual performance information of the automatic transmission main body 2 performed by the host computer 6 is performed through a simple method of initialization of the part, processing for the correction Is not complicated.

  (5) In the automatic transmission main body 2, for example, when an electronic component such as a solenoid of the actuator 5 is replaced, the replacement greatly affects the operation characteristics. However, after the replacement of the electronic parts, the individual performance information of the automatic transmission main body 2 written in the electronic control unit 3 is rewritten to an appropriate one. And since the control contents of various controls of the automatic transmission main body 2 are corrected based on the rewritten individual performance information, it is possible to suppress a great influence on the operation characteristics of the automatic transmission main body 2 due to the replacement of the electronic parts. Can do.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS.
This embodiment is a modification of the first embodiment in the way of correcting the part corresponding to the replacement part in the individual performance information of the automatic transmission main body 2 performed by the host computer 6.

FIG. 3 is a schematic diagram for explaining the rewriting method and rewriting device for the individual performance information of the automatic transmission main body 2 in this embodiment.
In the client terminal 7 shown in the figure, not only the serial number and part information of the replacement part of the automatic transmission body 2 but also the individual identification information (serial number) of the replacement part is inputted. In the client terminal 7, when the serial number of the replacement part is input, the input serial number is transmitted to the host computer 6.

  Further, in the host computer 6 of FIG. 3, the individual performance information unique to the various parts of the automatic transmission main body is stored as a database D2 in association with the individual identification information (such as serial number) of the various parts. Note that the individual performance information of various components used in the database D2 is obtained as follows, for example. That is, in the inspection process of the finished product at the manufacturing plant of these various parts, the completed part is operated, and characteristic data output through the operation is acquired as individual performance information and used in the database D2.

  The host computer 6 reads the individual performance information of the automatic transmission main body corresponding to the serial number from the database D1 based on the serial number of the automatic transmission main body 2 whose parts have been replaced at the service factory. Further, based on the serial number of the replacement part, the host computer 6 reads the individual performance information of the replacement part corresponding to the serial number from the database D2. Then, the part corresponding to the replacement part in the individual performance information of the automatic transmission main body read from the database D1 is determined based on the part information (name, etc.) of the replacement part, and the part is read from the database D2. Recreate the individual performance information of the automatic transmission main body with the individual performance information replaced.

FIG. 4 is a flowchart showing a rewriting procedure of the individual performance information of the automatic transmission main body 2 in this embodiment.
When a part (solenoid, etc.) of the automatic transmission main body 2 is replaced at a service factory, the operator can obtain the serial number of the automatic transmission main body 2, the part information (name, etc.) and the serial number of the replaced part. For example, it is input to the client terminal 7 manually (S201). Thereafter, the serial number of the automatic transmission main body 2 and the parts information and serial number of the replacement parts are transmitted from the client terminal 7 to the host computer 6 of the vehicle manufacturer (S202).

  On the host computer 6 side, based on the received serial number of the automatic transmission main body 2, the individual performance information of the automatic transmission main body corresponding to the serial number is read from the database D1 (S203). Further, based on the received serial number of the replacement part, the individual performance information of the replacement part corresponding to the serial number is read from the database D2 (S204). Then, after the part corresponding to the replacement part in the individual performance information of the read automatic transmission main body is determined based on the part information, the part is replaced with the individual performance information of the read replacement part. The individual performance information is recreated (S205). Thus, by recreating the individual performance information of the automatic transmission main body, the part corresponding to the replacement part in the individual performance information is corrected. Thereafter, the individual performance information of the corrected automatic transmission main body is stored in the database D1 (S206), and the individual performance information is transmitted to the client terminal 7 of the service factory (S207).

  In the service factory, after the operator inputs the individual performance information of the automatic transmission main body 2 after correction received at the client terminal 7 to the service tool 8 by, for example, manual operation, the service tool 8 is used as an electronic control device for the vehicle 1. 3, the corrected individual performance information stored in the service tool 8 is written into the electronic control unit 3 (S208). By writing the corrected individual performance information into the electronic control unit 3, the individual performance information of the automatic transmission main body 2 in the electronic control unit 3 is rewritten.

According to the embodiment described above in detail, in addition to the effects (1) to (3) and (5) described in the first embodiment, the following effects can be obtained.
(6) Assuming that the individual performance information of the automatic transmission main body 2 is corrected at each service factory, the individual performance information of the replacement part is obtained by using the IC memory, barcode, etc. Must be transported from the factory to a local service factory, and it takes excessive effort to manage the transport. However, if the rewriting method of the individual performance information described above is adopted, the individual performance information of the replacement part can be transported from the manufacturing factory of the part to the host computer 6, and the labor for managing the transportation can be reduced. it can.

  (7) The correction of the part corresponding to the replacement part in the individual performance information of the automatic transmission main body 2 performed by the host computer 6 is performed by replacing that part with the individual performance information of the part after replacement. The individual performance information of the subsequent automatic transmission main body 2 can be made appropriate as the individual performance information of the automatic transmission main body 2 after replacement of the parts.

  (8) In the host computer 6, the individual performance information of various parts in the automatic transmission main body 2 is associated with the serial numbers of the various parts and databased as a database D2. Further, the serial number of the replacement part is transmitted from the client terminal 7 to the host computer 6. For this reason, on the host computer 6 side, the individual performance information of the replaced part can be efficiently searched based on the serial number of the replacement part sent from the client terminal 7.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS.
This embodiment is different from the first embodiment in the manner of transmitting the serial number of the automatic transmission main body 2 to the host computer 6 and the individual performance information of the corrected automatic transmission main body 2 received by the client terminal 7. The method of transfer to the service tool 8 is changed.

FIG. 5 is a schematic diagram for explaining the rewriting method and rewriting device for the individual performance information of the automatic transmission main body 2 in this embodiment.
The serial number of the automatic transmission main body 2 mounted on the vehicle 1 is written in the storage area of the electronic control unit 3 shown in FIG. Is to be written.

  5 can be switched and connected between the electronic control unit 3 and the client terminal 7 as indicated by a solid line and a broken line in the drawing. Further, the service tool 8 has a function of reading the serial number and failure information written in the electronic control unit 3, a function of transmitting the serial number and failure information to the host computer 6 via the client terminal 7, and , It has a function of reading individual performance information after correction of the automatic transmission main body from the client terminal.

6 and 7 are flowcharts showing a procedure for rewriting the individual performance information of the automatic transmission main body 2 in this embodiment.
In a service factory, when a part (solenoid or the like) of the automatic transmission main body 2 is replaced, the operator connects the service tool 8 to the electronic control device 3 (S301 in FIG. 6) and the information is written in the device 3. The serial number and failure information of the automatic transmission main body 2 are read (S302). Thereafter, the service tool 8 is disconnected from the electronic control unit 3 by the operator and connected to the client terminal 7 (S303), and the serial number and failure information are transmitted from the service tool 8 to the host computer 6 via the client terminal 7. (S304). Further, the worker inputs the part information (name etc.) of the replaced part in the automatic transmission main body 2 to the client terminal 7 by manual work, for example (S305). Thereafter, the parts information of the replacement parts is transmitted from the client terminal 7 to the host computer 6 of the vehicle manufacturer (S306).

  On the host computer 6 side, based on the received serial number of the automatic transmission main body 2, the individual performance information of the automatic transmission main body corresponding to the serial number is read from the database D1 (S307). Then, the part corresponding to the replacement part in the read individual performance information of the automatic transmission main body is determined based on the part information, and the individual performance information of the automatic transmission main body is recreated in a state in which the part is initialized ( S308). Thus, by recreating the individual performance information of the automatic transmission main body, the part corresponding to the replacement part in the individual performance information is corrected. Thereafter, the individual performance information of the corrected automatic transmission main body is stored in the database D1 (S309 in FIG. 7), and the individual performance information is further transmitted to the client terminal 7 of the service factory (S310).

  At the service factory, the corrected individual performance information is read by the client terminal 7 and the received individual performance information of the corrected automatic transmission main body 2 is read by the service tool 8 connected to the client terminal 7. (S311). Thereafter, the service tool 8 is disconnected from the client terminal 7 and connected to the electronic control unit 3 of the vehicle 1 (S312), and the corrected individual performance information stored in the service tool 8 is written to the electronic control unit 3. Perform (S313). By writing the corrected individual performance information into the electronic control unit 3, the individual performance information of the automatic transmission main body 2 in the electronic control unit 3 is rewritten.

According to the present embodiment described in detail above, the following effects can be obtained in addition to the effects (1) to (5) described in the first embodiment.
(9) By simply switching and connecting the service tool 8 between the electronic control unit 3 and the client terminal 7, transmission of the serial number of the automatic transmission main body 2 to the host computer 6 and correction automatic transmission main body Since the individual performance information 2 can be written, it is possible to improve the workability by simplifying those operations.

  (10) When the service tool 8 is connected to the electronic control unit 3 and the serial number of the automatic transmission main body 2 is acquired, the failure information stored in the electronic control unit 3 main body is also taken into the service tool 8. When the serial number of the automatic transmission main body 2 is transmitted from the service tool 8 to the host computer 6 via the client terminal 7, failure information of the automatic transmission main body 2 is also transmitted to the host computer 6 at the same time. The time taken for the failure information to arrive at the host computer 6 can be shortened. Therefore, when the failure analysis of the automatic transmission main body 2 based on the failure information is performed on the host computer 6 side, the failure analysis can be efficiently performed.

[Other Embodiments]
In addition, each said embodiment can also be changed as follows, for example.
The transmission of the failure information of the automatic transmission main body 2 to the host computer 6 in the third embodiment is not necessarily performed.

-You may implement the correction | amendment of the individual performance information of the automatic transmission main body 2 in 3rd Embodiment in the aspect described in 2nd Embodiment.
In the first to third embodiments, data transmission / reception between the client terminal 7 and the service tool 8 may be realized by wireless or the like. In this case, data transmission / reception between the client terminal 7 and the service tool 8 is facilitated.

  In the first to third embodiments, the following configuration may be used instead of using the service tool 8. That is, an interface unit corresponding to the terminal on the electronic control device side in the middle of the client terminal 7 or the cable so that the client terminal 7 and the electronic control device 3 are connected by cable and data can be transmitted and received between the two via the cable. It is set as the structure which provides. In this case, the client terminal 7 corresponds to the writing means.

  -Although this invention was applied with respect to the automatic transmission main body 2 and the electronic control apparatus 3 which controls it, you may apply this invention to vehicle-mounted units other than the automatic transmission main body 2, and its control apparatus.

Schematic for demonstrating the rewriting method and rewriting apparatus of the individual performance information of the automatic transmission main body in 1st Embodiment. The flowchart which shows the rewriting procedure of the individual performance information of the automatic transmission main body in the embodiment. Schematic for demonstrating the rewriting method and rewriting apparatus of the individual performance information of the automatic transmission main body in 2nd Embodiment. The flowchart which shows the rewriting procedure of the individual performance information of the automatic transmission main body in the embodiment. Schematic for demonstrating the rewriting method and rewriting apparatus of the individual performance information of the automatic transmission main body in 3rd Embodiment. The flowchart which shows the rewriting procedure of the individual performance information of the automatic transmission main body in the embodiment. The flowchart which shows the rewriting procedure of the individual performance information of the automatic transmission main body in the embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Automatic transmission main body (vehicle-mounted unit), 3 ... Electronic control unit, 5 ... Actuator, 6 ... Host computer, 7 ... Client terminal (transmitting means, reading means), 8 ... Service tool (transmitting means, Writing means).

Claims (7)

In the rewriting method of the individual performance information of the in-vehicle unit that rewrites the individual performance information of the in-vehicle unit written in the control unit of the in-vehicle unit according to the replacement of the parts in the in-vehicle unit.
Individual identification of an in-vehicle unit whose parts have been exchanged via a client terminal that can communicate with the host computer for a host computer in which the individual performance information of the in-vehicle unit is associated with the individual identification information of the in-vehicle unit. Send information and parts information for replacement parts,
Based on the individual identification information of the in-vehicle unit in the host computer, the individual performance information of the in-vehicle unit is read from the database, and a part corresponding to the replacement part of the individual performance information is corrected to create new individual performance information Then, the new individual performance information is transmitted to the client terminal and stored in the database,
Rewriting the individual performance information of the in-vehicle unit by rewriting the individual performance information of the control device by writing the new individual performance information received by the client terminal into the control device of the in-vehicle unit. In the host computer, the individual performance information on the parts of the in-vehicle unit is databased in association with the individual identification information of the parts,
Sending the individual identification information of the replaced part to the host computer via the client terminal,
The correction of the part corresponding to the replacement part of the individual identification information of the in-vehicle unit in the host computer reads out the individual performance information of the part from the database based on the individual identification information of the replaced part, and the in-vehicle unit based on the individual performance information The method for rewriting the individual performance information of the in-vehicle unit according to claim 1, which is performed through replacement of a part corresponding to the replacement part of the individual identification information of the unit. The method for rewriting the individual performance information of the in-vehicle unit according to claim 1, wherein the part of the individual identification information corresponding to the replacement part is corrected by initializing the part. Regarding the transmission of the individual identification information of the in-vehicle unit to the host computer, a service tool is connected to the control unit of the in-vehicle unit, and the individual identification information stored in the control device is read by the service tool, and then the service tool Is disconnected from the control device and connected to the client terminal, and in that state is executed from the service tool via the client terminal,
Regarding the writing of the new individual performance information received by the client terminal to the control unit of the in-vehicle unit, the new individual performance information is read by the service tool connected to the client terminal, and then the service tool is The method for rewriting the individual performance information of the in-vehicle unit according to any one of claims 1 to 3, wherein the method is executed by disconnecting from the client terminal and connecting to the control device. The service tool reads the failure information stored in the device when connected to the control device to read the individual identification information of the vehicle-mounted unit, and sends the individual identification information to the client terminal to transmit the individual identification information to the host computer. The method for rewriting the individual performance information of the in-vehicle unit according to claim 4, wherein the failure information is also transmitted to the host computer when connected.   The method for rewriting individual performance information of an in-vehicle unit according to any one of claims 1 to 5, wherein the replacement part is an electronic part. In the in-vehicle unit individual performance information rewriting device that rewrites the individual performance information of the in-vehicle unit written in the control unit of the in-vehicle unit according to the replacement of the parts in the in-vehicle unit.
The in-vehicle unit individual performance information is associated with the in-vehicle unit individual identification information in a database, and the in-vehicle unit individual performance information is read from the database based on the individual identification information of the in-vehicle unit that has been replaced. A host computer that creates a new individual performance information by correcting the part corresponding to the replacement part in the individual performance information based on the parts information of
Transmitting means for transmitting the individual identification information of the in-vehicle unit that has performed the parts replacement to the host computer, and the parts information of the replacement parts,
Read means for reading new individual performance information created by the host computer;
Rewriting means for rewriting the individual performance information of the control device by the new individual performance information read by the reading means;
An apparatus for rewriting individual performance information of an in-vehicle unit, comprising:

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