JP2011127465A - Maintenance system for engine control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a maintenance system for an engine control device capable of easily and correctly setting an optimum control program corresponding to components equipped at an engine system. <P>SOLUTION: The maintenance system for the engine control device 20 controlling the engine system includes an input means 20 inputting information on models of the components exerting an influence on engine performance into the engine control device 20. The engine control device 20 has: a first storage section 33 with a plurality of control programs corresponding to a plurality of models of the same stored components; a second storage section 34 with a maintenance program including the condition setting of the stored engine control device 20; a mode switching section 37 switching a normal control mode and a maintenance mode; a condition setting section 38 selecting the control program corresponding to the components from the plurality of control programs based on information on the models in the maintenance mode, and making the selected control program effective; and an input permission setting section 39 canceling an input from the input means 20 in the normal control mode. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a maintenance system for an engine control device including a control program for controlling the engine system.

An engine system used for a vehicle such as an automobile or a stationary internal combustion engine such as a construction machine, an agricultural machine, or an industrial machine includes an engine body, an EGR device, and a post-processing device. Are controlled by an engine control device such as a unit.
Generally, an engine system is shipped in a state where a control program corresponding to a component to be installed is installed in the engine control apparatus. For example, when the EGR device or the post-processing device is replaced with another compatible component, it is necessary to install a control program corresponding to the new component configuration or replace the engine control device with a previously changed control program.

  As described above, in order to use a product equipped with an engine system in an optimal state without any problems, it is important to install a control program most suitable for each component of the engine system in the engine control device. is there.

  For example, Patent Document 1 (Japanese Translation of PCT International Publication No. 2002-544429) includes an engine control device that controls an engine control unit and controls and monitors other systems, and connects the engine control device to an external diagnostic tester. When the program version included in the control device is not stored as the latest and most actual version, the most actual version is charged in the program memory of the engine control device every time. Is disclosed.

JP 2002-544429 Gazette

  However, the apparatus described in Patent Document 1 only downloads the latest version of the program, and as described above, for example, when the EGR apparatus or the post-processing apparatus is replaced with another compatible part, It was not possible to cope with program changes that could not be applied in the latest version.

  When parts are replaced with parts of other models after product shipment, changes in the control program and parameters in the engine control device occur. Conventionally, control corresponding to these changes one by one. It was necessary to reset the program and parameters, which was a great effort. Especially in the case of mass-produced engine systems, it is difficult to manage the consistency between hardware and software due to the large number of units, and there is a possibility of setting mistakes that cause different control programs to be installed manually. There was also sex.

  SUMMARY OF THE INVENTION Therefore, in view of the problems of the prior art, the present invention has an object to provide a maintenance system for an engine control device that can easily and accurately set an optimal control program corresponding to the components equipped in the engine system. And

  The present invention provides a maintenance system for an engine control device that controls an engine system, and inputs model information of components that can be connected to the engine control device and affect engine performance to be connected to the engine control device. A first storage unit storing a plurality of control programs corresponding to a plurality of models of the same component, and a second storage storing a maintenance program including condition settings of the engine control device. Based on the model information input by the input means in the maintenance mode, a mode switching unit for switching between a normal control mode for executing the control program and a maintenance mode for executing the maintenance program The engine system is loaded from the plurality of control programs stored in the first storage unit. A condition setting unit that selects a control program corresponding to the component to be selected and validates the selected control program; and an input permission setting unit that invalidates input from the input means in the normal control mode. It is characterized by having.

  According to the present invention, a control program corresponding to a plurality of models of the same component is stored in the engine control device in advance, and only by inputting the model information of the component to the engine control device by the input means, Since the control program corresponding to the part is selected and validated, the most appropriate control program can be set easily and accurately. Even when multiple parts are replaced at the same time, it is possible to set the appropriate control program based on the input model information, which saves a lot of time compared to installing one by one. In addition, it is possible to set an accurate control program without causing a setting error.

  In addition, the engine control device can be switched between the maintenance mode and the normal control mode, and the input from the input means is enabled in the maintenance mode, and the input is disabled in the normal control mode. During operation, it is possible to prevent the occurrence of problems due to changes made to the control program by the input means, thereby improving safety.

Further, the engine control device includes a third storage unit that stores a plurality of parameter sets for setting operation conditions of the control program corresponding to a plurality of models of the same component, and the condition setting unit includes the model set Selecting a parameter set corresponding to a component equipped in the engine system from the plurality of parameter sets stored in the third storage unit based on the information, and validating the selected parameter set preferable.
In general, a parameter set for setting an operation condition of a control program corresponds to a part. When a part is replaced, the parameter set needs to be changed to a parameter set corresponding to the part together with the control program. Therefore, by storing parameter sets corresponding to multiple models for the same part in the engine control device in advance, the parameter set can be changed simultaneously with the control program simply by inputting model information, making operation even easier. And accuracy can be improved. The parameter set includes one or a plurality of parameters.

The input means inputs a parameter set for setting operating conditions of the control program corresponding to the model information together with the model information to the engine control apparatus, and the engine control apparatus is input by the input means. The parameter set is preferably stored in a third storage unit.
In this way, by adopting a configuration in which the parameter set is input together with the model information by the input means, the degree of freedom in setting the parameter set is increased, and a more appropriate parameter set can be set in the engine control apparatus.

The input means reads the barcode information including the model information, the parameter set corresponding to the model information, and engine information that permits the use of the parameter set; and the read barcode information It is preferable to have a communication means for transmitting to the engine control device.
In this way, by reading the model information, parameter set, and engine information as barcode information, it is not necessary to input manually and labor can be saved, and input accuracy can be prevented and accuracy can be further improved. In addition, it is not necessary to confirm the correspondence between the model information and the parameter set, and the parameter set corresponding to the model information can be accurately input. Further, since the barcode information includes engine information that permits the use of the parameter set, it is possible to prevent erroneous index information from being set in the engine control device.

Moreover, it is preferable that the bar code information is displayed on the component main body or a subordinate attached to the component. The subordinates attached to the component may be, for example, a packing material for packing the component, a tag attached to the component, or the like.
In this way, by displaying the barcode information on the component main body or the subordinates, it is possible to reliably associate the component actually installed in the engine system with the model information and the parameter set, thereby preventing setting errors. When the component main body is small or when the barcode cannot be directly displayed on the component main body, the barcode information can be attached to any component by displaying the barcode on the subordinate.

  Further, in the case where a plurality of parameter sets are stored in the third storage unit of the engine control device corresponding to a plurality of models of the same component, the input means can be connected to a server via a communication line. And the input means selects model information of a component installed in the engine system from a plurality of model information of the component provided by the server, and sets the parameter set corresponding to the selected model information. Preferably, index information including switching information is received via the communication line, and the index information is input to the engine control device.

  As described above, the parameter set can be easily and accurately selected by selecting the parameter set corresponding to the part from the parameter set previously stored in the engine control device based on the index information input to the engine control device. It becomes possible to set. Also, since the information received from the server is index information, the information capacity is smaller than when the parameter set itself is downloaded, the time required for information acquisition can be reduced even in an environment with a low communication speed, and the download time can be shortened. . In particular, when the number of parts to be replaced is large, the effect of simplifying the download and shortening the download time is increased.

Furthermore, the input means can be connected to the communication line, a storage medium that stores the index information received from the server by the communication terminal, and a storage medium that can be connected to the engine control device. It is preferable to have a maintenance terminal for inputting the above information to the engine control device.
As described above, the index information is downloaded from the server by the communication terminal, stored in the storage medium, and input to the engine control device by the maintenance terminal, so that the maintenance terminal does not need to have communication means. Further, since the storage medium is used, the storage capacity of the maintenance terminal can be saved, and the cost of the maintenance terminal can be reduced. By using a large-capacity flash memory card or the like, it can be used for a large number of parameter sets.

  As described above, according to the present invention, a control program corresponding to a plurality of models of the same component is stored in advance in the engine control device, and only model information of the components is input to the engine control device by the input means. Since the control program corresponding to the component is automatically selected and validated, the most appropriate control program can be set easily and accurately. Even when multiple parts are replaced at the same time, it is possible to set the appropriate control program based on the input model information, which saves a lot of time compared to installing one by one. In addition, it is possible to set an accurate control program without causing a setting error.

  In addition, the engine control device can be switched between the maintenance mode and the normal control mode, and the input from the input means is enabled in the maintenance mode, and the input is disabled in the normal control mode. During operation, it is possible to prevent the occurrence of problems due to changes made to the control program by the input means, thereby improving safety.

It is a lineblock diagram showing an example of an engine system to which an embodiment of the present invention is applied. It is a functional block diagram showing an ECU maintenance system according to an embodiment of the present invention. It is a figure explaining operation | movement of ECU maintenance system. It is a figure explaining the setting method of a control program. It is a flowchart which shows the process of ECU maintenance system. It is a block diagram which shows the 1st modification of the ECU maintenance system which concerns on embodiment of this invention. It is a block diagram which shows the 2nd modification of the ECU maintenance system which concerns on embodiment of this invention.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, but are merely illustrative examples. Not too much.

The engine system to which the present invention is applied is mounted on, for example, a vehicle such as an automobile or a stationary internal combustion engine such as a construction machine, an agricultural machine, or an industrial machine. FIG. 1 is a configuration diagram illustrating an example of an engine system including an ECU maintenance system according to an embodiment of the present invention.
In the engine system 1 shown in FIG. 1, the air introduced into the intake pipe 3 via the air flow meter 2 is compressed by the compressor of the turbocharger 14, cooled by the intercooler 4, and the intake air amount is reduced by the throttle valve 5. After the adjustment, it is mixed with exhaust gas and taken into the engine body 8. The exhaust gas is mixed with air after a part of the exhaust gas discharged from the engine body 8 is cooled by the EGR cooler 6 and the intake air amount is adjusted by the EGR valve 7.

The engine body 8 has a piston and a cylinder that accommodates the piston. The intake valve is opened, and the mixed gas is sucked into a combustion chamber formed in the cylinder. After compression, fuel is injected from the fuel injection valve 9 connected to the common rail 10 to burn and expand, and then the exhaust valve is opened to exhaust the exhaust gas. The reciprocating motion of the piston in the compression, combustion / expansion, and exhaust processes is output as the rotational motion of the crankshaft.
The exhaust gas discharged from the engine body 8 to the exhaust pipe 13 is partly branched and sent to the intake side, and the remaining exhaust gas passes through the turbine of the turbocharger 14 and is then installed on the exhaust pipe 13. Hazardous substances are purified through the oxidation catalyst 15, PM (particulate matter) is removed through the DPF (diesel particulate filter) 16, and then discharged.

The engine system 1 described above is controlled by an ECU (electronic control unit) 30 that is an engine control device. The ECU 30 is a device that integrally controls the control target mounted in the engine system 1. For example, the opening control of the throttle valve 5 and the EGR valve 7, the fuel injection control of the fuel injection valve 9, and the fuel supply control of the common rail 10. Control such as.
Although FIG. 1 shows a diesel engine system as an example, the ECU maintenance system according to the present embodiment can be applied not only to this diesel engine system but also to all engine systems controlled by an engine control device.

The ECU maintenance system according to the embodiment of the present invention mainly includes an ECU 30 having a maintenance program and the like, and a maintenance terminal 20 that can be connected to the ECU 30. A specific configuration of the ECU maintenance system will be described with reference to FIG.
FIG. 2 is a functional block diagram showing the ECU maintenance system according to the embodiment of the present invention. This system mainly includes a maintenance terminal 20 that is an input unit, and an ECU 30 that executes a maintenance program based on information input from the maintenance terminal 20.

The maintenance terminal 20 includes an input unit 21 that inputs model information of components that are installed in the engine system 1 and affect engine performance, and a communication interface 22 that transmits the input model information and the like to the ECU 30.
The input unit 21 may directly input component model information using a keyboard or the like, or may input using a bar code or a storage medium as will be described later. The component refers to a component that affects engine performance. For example, in the diesel engine system shown in FIG. 1, the component includes the temperature sensor 18 or the differential pressure sensor 19, the oxidation catalyst 15, and the DPF 16 installed in the DPF 16. Etc. Further, the model information of the parts refers to information such as series, model number, and version of compatible parts having the same function.
The communication interface 22 may be a means for connecting to the ECU 30 by wire, or may be a means for connecting wirelessly using infrared rays or the like.

The ECU 30 includes a communication interface 31 for transmitting and receiving information to and from the maintenance terminal 20, a program memory 32 in which various programs are stored, and an arithmetic processing unit 36 that performs various arithmetic operations.
The communication interface 31 may be a means for connecting to the maintenance terminal 20 by wire, or a means for connecting wirelessly using infrared rays or the like.
The program memory 32 includes a first memory 33 that stores a control program, and a second memory 34 that stores a maintenance program.

The first memory 33 stores a control program for controlling an object to be controlled during normal operation of the engine system 1 and stores a plurality of control programs corresponding to a plurality of models of the same component. For example, as shown in FIG. 3, a plurality of control programs corresponding to a plurality of models of the same component such as a temperature sensor-A control program, a temperature sensor-B control program,... Stored in Further, a plurality of control programs corresponding to other components such as a DPF-A control program, a DPF-B control program, and so on are also stored.
Returning to FIG. 2, the second memory 34 stores a maintenance program for changing the control program in accordance with the components.

  The arithmetic processing unit 36 reads out a control program stored in the first memory 33 as a basic function, and executes the control program to control the control target of the engine system 1 during normal operation or to store in the second memory 34. The stored maintenance program is read and executed to perform maintenance such as setting change of the ECU 30.

Further, the arithmetic processing unit 36 includes a mode switching unit 37, a condition setting unit 38, and an input permission setting unit 39.
The mode switching unit 37 has a function of switching between a normal control mode for executing the control program and a maintenance mode for executing the maintenance program. The mode switching unit 37 may perform mode switching by an operation from the maintenance terminal 20.
In the maintenance mode, the condition setting unit 38 controls the parts corresponding to the parts installed in the engine system 1 from a plurality of control programs stored in the first memory 33 based on the model information input from the maintenance terminal 20. Select a program and validate the selected control program.
The input permission setting unit 39 invalidates the input from the maintenance terminal 20 in the normal control mode.

Further, in the ECU maintenance system of the present embodiment, the ECU 30 may have a parameter memory (third memory) 35 in which a plurality of parameter sets for setting operating conditions of the control program are stored. The parameter memory 35 stores a plurality of parameter sets corresponding to a plurality of models of the same component. For example, as shown in FIG. 3, an oxidation catalyst-A parameter set, an oxidation catalyst-B parameter set, and the like are stored. The parameter set includes one or a plurality of parameters.
The condition setting unit 38 selects a parameter set corresponding to the part from a plurality of parameter sets stored in the parameter memory 35 based on the model information, and sets the parameter set in the ECU 30.

Next, the processing operation of the ECU maintenance system will be described along the flowchart shown in FIG. 5 with reference to FIGS.
As shown in FIG. 2, when a part mounted on the engine system 1 is replaced, model information of the replacement part is input from the input unit 21 of the maintenance terminal 20, and the model information is transmitted to the ECU 30 via the communication interface 22. .

  As shown in FIG. 5, in the ECU 30, the mode switching unit 37 switches from the normal control mode to the maintenance mode (S1). In the maintenance mode, it communicates with the maintenance terminal 20 via the communication interface 31 (S2), acquires model information of parts from the maintenance terminal 20 (S3), and determines whether the model information is normal (S4). If the model information is not normal (S5), it communicates with the maintenance terminal 20 again (S2) and acquires the model information again (S3). If the model information is normal (S5), the model information is confirmed (S6). A control program is selected based on the confirmed model information and is set to be valid (S7). Further, when selecting a parameter set, the parameter set is selected based on the model information and set to be valid (S8).

  For example, as shown in FIG. 3, the replacement parts are the exhaust temperature sensor 18, the oxidation catalyst 15, and the DPF 16, and the replacement parts are the temperature sensor-B, the oxidation catalyst-A, and the DPF-C. The model information is input to the ECU 30 by the maintenance terminal 20. As shown in FIG. 4, the temperature sensor-B control program is selected from the model information of the temperature sensor 18, the oxidation catalyst-A parameter set is selected from the model information of the oxidation catalyst, and the DPF-C is selected from the model information of the DPF. A control program is selected.

Returning to FIG. 5, the ECU 30 determines whether or not the maintenance mode has ended (S9). If not, the ECU 30 returns to communication with the maintenance terminal 20 (S2). When the maintenance mode ends, the mode switching unit 37 of the ECU 30 switches from the maintenance mode to the normal control mode (S10).
In the normal control mode, the input from the maintenance terminal 20 is set to be invalid by the input permission setting unit 39, and even if model information is input from the maintenance terminal 20, it is not accepted. In the maintenance mode, the input permission setting unit 39 receives an input from the maintenance terminal 20.

As shown in FIG. 3, during operation of the engine system 1, detection signals detected by various detection means such as the temperature detected by the temperature sensor 18 are input to the ECU 30 and A / D converted. A control program is executed based on the A / D converted detection signal, and a control command signal (for example, a fuel injection command) for controlling a control target of the engine system 1 is output.
When executing the control program, the temperature sensor-B control program, the DPF-C control program, and the oxidation catalyst-A parameter set set in the maintenance mode are read from each memory and executed. .

  As described above, according to the ECU maintenance system according to the present embodiment, control programs corresponding to a plurality of models of the same component are stored in advance in the first memory 33 of the ECU 30, and the model of the component is stored in the maintenance terminal 20. Since the control program corresponding to the component is automatically selected and validated simply by inputting information to the ECU 30, the most appropriate control program can be set easily and accurately. Even when multiple parts are replaced at the same time, it is possible to set the appropriate control program based on the input model information, which saves a lot of time compared to installing one by one. In addition, it is possible to set an accurate control program without causing a setting error.

  Furthermore, since the ECU 30 is switched between the maintenance mode and the normal control mode, and the input from the maintenance terminal 20 is enabled in the maintenance mode and the input is invalidated in the normal control mode, the engine system 1 is operated in the normal control mode. During operation, it is possible to prevent the maintenance program 20 from changing the control program and causing a malfunction, thereby improving safety.

In the present embodiment, the maintenance terminal 20 may input a parameter set corresponding to the model information together with the model information of the parts. The input parameter set is stored in the parameter memory 35. The ECU 30 effectively sets the parameter set input together with the model information. Here, the ECU 30 may rewrite the existing parameter set with the parameter set input at the maintenance terminal 20. In addition, the ECU 30 preferably has a function of determining which replacement part parameter set is the parameter set input from the maintenance terminal 20. For example, by adding a control code indicating which component is to the parameter set, the parameter set is associated with the component, and the ECU 30 identifies the component by detecting this control code.
As described above, the configuration in which the parameter set is input together with the model information at the maintenance terminal 20 increases the degree of freedom in setting the parameter set, and a more appropriate parameter set can be set in the ECU 30.

FIG. 6 is a block diagram showing a first modification of the ECU maintenance system according to the embodiment of the present invention.
In FIG. 6, the internal configuration of the maintenance terminal and the internal configuration of the ECU shown in FIG. 2 are omitted.
In the first modification, the input unit 21 of the maintenance terminal 20 is a means for reading barcode information. The barcode information includes part model information, a parameter set for setting operating conditions of a control program corresponding to the model information, and engine information for permitting use of the parameter set. As the bar code, a two-dimensional bar code is preferably used. For example, a QR code may be used to represent device information and index information by alphanumeric characters.

Furthermore, it is preferable that this barcode information is displayed on the component main body 41 or a subordinate attached to the component. The subordinates attached to the component 41 may be, for example, a packing material 42 for packing the component, or a tag attached to the component.
The input unit 21 of the maintenance terminal 20 uses well-known barcode reading means that illuminates a barcode and receives the reflected light to acquire an analog waveform. The read analog waveform is converted into a digital signal by the A / D converter of the maintenance terminal 20, and the obtained digital signal is input to the ECU 30.

In this ECU maintenance system, the barcode information is read by the input unit 21 of the maintenance terminal 20, and the barcode information is transmitted to the ECU 30 via the communication interface 22.
The ECU 30 acquires the barcode information via the communication interface 31, reads out the control program stored in the first memory 33 based on the model information among the barcode information, and sets the parameter set included in the barcode information. Store in the parameter memory 35. At this time, it is preferable to check whether or not the parameter set is suitable for the engine system based on the engine information included in the barcode information and permitting the use of the parameter set.

  In the barcode information acquired from the maintenance terminal 20, a flag indicating that the parameter set of the replacement part is a new parameter set is turned ON, thereby enabling the new parameter set of the replacement part, or The new parameter set overwrites the existing parameter set. Furthermore, it is preferable to add a control code indicating to which parameter set the parameter set is included in the parameter set included in the barcode information, and the parameter set is applied when the ECU 30 detects the control code. Parts to be identified.

In this way, by reading the model information, parameter set, and engine information as barcode information by the maintenance terminal 20, it is not necessary to input manually, and labor can be saved, and input errors can be prevented and accuracy can be further improved. In addition, it is not necessary to confirm the correspondence between the model information and the parameter set, and the parameter set corresponding to the model information can be accurately input.
Furthermore, by displaying the barcode information on the component main body or the subordinates, it is possible to reliably associate the component actually installed in the engine system with the model information and the parameter set, thereby preventing setting errors. When the component main body is small or when the barcode cannot be directly displayed on the component main body, the barcode information can be attached to any component by displaying the barcode on the subordinate.

  Furthermore, since the parameter set received from the maintenance terminal 20 includes a plurality of parameters, each parameter label name (variable name) in order and the label name (variable name) in the parameter set to be updated are listed. If the label names match, the parameter value in the ECU 30 may be updated to a value given from the maintenance terminal 20. If even one label name does not match, all changes are canceled because there is an error in the information from the maintenance terminal 20. This makes it possible to set parameters more accurately.

FIG. 7 is a configuration diagram showing a second modification of the ECU maintenance system according to the embodiment of the present invention. In FIG. 7, the internal configuration of the maintenance terminal and the internal configuration of the ECU shown in FIG. 2 are omitted.
In the second modification, input means for inputting model information and the like to the ECU 30 mainly includes a communication terminal 25, a storage medium 26, and a maintenance terminal 27.
The communication terminal 25 can be connected to the server 51 via a communication line 50 such as the Internet, and selects the model information of the parts installed in the engine system 1 from a plurality of model information of the parts provided by the server 51, Index information including parameter set switching information corresponding to the selected model information is acquired from the server 51.
The storage medium 26 is connected to the communication terminal 25 and stores index information including model information.
The maintenance terminal 27 transmits the index information stored in the storage medium 26 to the ECU 30.

As in FIG. 2, the ECU 30 stores a plurality of control programs in the first memory 33 and a plurality of parameter sets in the parameter memory 35.
The ECU 30 acquires index information from the maintenance terminal 27 via the communication interface 31, selects a control program from the first memory 33 based on the index information, and sets it to be valid. Further, the parameter set is selected from the parameter memory 35 based on the index information and is set to be valid.

  As described above, the parameter set can be easily and accurately set by selecting the parameter set corresponding to the part from the parameter set previously stored in the ECU 30 based on the index information input to the ECU 30. It becomes possible. In addition, since the information received from the server 51 is index information, the information capacity is smaller than when the parameter set itself is downloaded, the time required for information acquisition can be reduced even in an environment where the communication speed is low, and the download time can be shortened. Become. In particular, when the number of parts to be replaced is large, the effect of simplifying the download and shortening the download time is increased.

  In addition, the index information is downloaded from the server 51 by the communication terminal 25, stored in the storage medium 26, and input to the ECU 30 by the maintenance terminal 27, so that the maintenance terminal 27 needs to have communication means. In addition, since the storage medium 26 is used, the storage capacity of the maintenance terminal 27 can be saved, and the cost of the maintenance terminal 27 can be reduced. The storage medium 26 can be used for many parameter sets by using a large-capacity flash memory card or the like.

  Furthermore, in the above configuration, when there is no parameter set corresponding to the replacement part in the parameter set stored in advance in the parameter memory 35, the parameter set itself may be acquired from the server 51 together with the index information. For example, when the oxidation catalyst-D is newly adopted, the parameter set for the oxidation catalyst-D is not stored in the parameter memory 35 unless the adoption of the oxidation catalyst-D is determined when the ECU 30 is shipped. Sometimes. At this time, the communication terminal 25 obtains the oxidation catalyst-D parameter set from the server 51 together with the new index information, and inputs it from the maintenance terminal 27 to the ECU 30 via the storage medium 26. As a result, even a component that does not store a parameter set corresponding to the parameter memory 35 can be employed in the engine system 1.

1 Engine system 8 Engine body 15 Oxidation catalyst 16 DPF
18 Exhaust temperature sensor 20 Maintenance terminal (input means)
21 Input Unit 22 Communication Interface 25 Communication Terminal 26 Storage Medium 27 Maintenance Terminal 30 ECU (Engine Control Device)
31 Communication Interface 32 Program Memory 33 First Memory 34 Second Memory 35 Parameter Memory (Third Memory)
36 arithmetic processing unit 37 mode switching unit 38 condition setting unit 39 input permission setting unit 40 component main body 41 packing material 50 communication line 51 server

Claims (7)

In the maintenance system of the engine control device that controls the engine system,
Connectable to the engine control device, comprising: input means for inputting model information of parts that are equipped in the engine system and affect engine performance to the engine control device;
The engine control device
A first storage unit storing a plurality of control programs corresponding to a plurality of models of the same part;
A second storage unit storing a maintenance program including condition settings of the engine control device;
A mode switching unit for switching between a normal control mode for executing the control program and a maintenance mode for executing the maintenance program;
In the maintenance mode, based on the model information input by the input means, a control program corresponding to a part equipped in the engine system from the plurality of control programs stored in the first storage unit A condition setting unit that selects and validates the selected control program;
An engine control device maintenance system comprising: an input permission setting unit that invalidates an input from the input means in the normal control mode. The engine control device includes a third storage unit that stores a plurality of parameter sets for setting operation conditions of the control program corresponding to a plurality of models of the same component,
The condition setting unit selects a parameter set corresponding to a component equipped in the engine system from the plurality of parameter sets stored in the third storage unit based on the model information, and the selected 2. The engine control device maintenance system according to claim 1, wherein the parameter set is validated. The input means inputs, together with the model information, a parameter set for setting operating conditions of the control program corresponding to the model information to the engine control device,
The engine control apparatus maintenance system according to claim 1 or 2, wherein the engine control apparatus stores the parameter set input by the input unit in a third storage unit. The input means is
Means for reading bar code information including the model information, the parameter set corresponding to the model information, and engine information permitting the use of the parameter set;
The engine control apparatus maintenance system according to claim 2, further comprising communication means for transmitting the read barcode information to the engine control apparatus.   5. The maintenance system for an engine control apparatus according to claim 4, wherein the barcode information is displayed on the component main body or a subordinate attached to the component. The input means is connectable to a server via a communication line;
The input means selects model information of a component installed in the engine system from a plurality of model information of the component provided by the server, and provides switching information of the parameter set corresponding to the selected model information. The engine control device maintenance system according to claim 2, wherein the index information is received via the communication line, and the index information is input to the engine control device.   The input means is connectable to the communication line, a storage medium that stores the index information received from the server by the communication terminal, and is connectable to the engine control device. The maintenance system for an engine control apparatus according to claim 6, further comprising a maintenance terminal for inputting to the engine control apparatus.

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