JP2005299553A - Automatic adapting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic adaptation apparatus enabling adaptation according to a purpose. <P>SOLUTION: Target adaptive values are determined for a plurality of output values of an engine. Parameters of controlling the operation of the engine are operated so that these output values can meet the target adaptive values in order according to a predetermined priority order. The priority order of the output values is determined according to the operating condition of the engine beforehand. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automatic adaptation device.

  When a newer internal combustion engine is developed than before, an operation for searching for the value of an engine operation control parameter capable of obtaining an optimal engine output value, that is, an adaptation operation is performed. In this adaptation work, the optimal engine output value, for example, the optimal exhaust emission amount, is obtained over a long period of time by gradually changing the values of parameters such as the fuel injection amount and fuel injection timing based on experience. Possible values for parameters that can be searched are searched. The same is true when developing a new vehicle.

  However, even if searching for parameter matching values based on experience in this way, it becomes difficult to find the optimal parameter matching values as the number of parameters increases, and it takes a long time to find the parameter matching values. Therefore, there is a problem that not only development takes time but also a great deal of labor is required.

Therefore, an automatic adaptation apparatus that automatically performs parameter adaptation work has already been proposed (see Patent Document 1). In this automatic adaptation device, one parameter that has the most influence on each output value is determined in advance, that is, a combination of the output value and the parameter is determined in advance, and the parameter adaptation value of each parameter is searched. Therefore, each parameter is feedback-controlled at the same time so that the output value combined with each parameter becomes the corresponding target output value.
JP 2002-138889 A

  By the way, even if the vehicle is suitable, there are various targets depending on the purpose, such as the adaptation that gives priority to fuel consumption even if the emission is somewhat worse, or the adaptation that gives priority to emission even if the fuel consumption is somewhat worse. To do. However, when searching for a parameter that satisfies the target output value just as in the above-described automatic adaptation device, the parameter adaptation value that prioritizes fuel consumption and the parameter adaptation value that prioritizes emission will be mixed together and meet the purpose. There is a problem that it is not possible to carry out the adaptation with the aim. Also, when there are multiple combinations of parameters that satisfy the same target output value, the parameter adaptation values at two points with slightly different engine speeds or engine loads differ greatly, resulting in unstable engine control. There is also.

  In order to solve the above problems, according to the present invention, conformity target values are respectively defined for a plurality of output values, and the conformity target values corresponding to the output values in accordance with a predetermined priority are sequentially determined. The engine operation control parameters are operated so as to satisfy, and the priority of these output values is determined in advance according to the engine operating state.

  It is possible to adapt to the target such as priority on fuel consumption and emission.

  FIG. 1 shows an entire automatic adaptation apparatus for automatically adapting parameters for operation control of a compression ignition type internal combustion engine. In this case, the internal combustion engine may be a spark ignition type internal combustion engine.

  Referring to FIG. 1, 1 is an engine body, 2 is an electrically controlled fuel injection valve for injecting fuel into the combustion chamber of each cylinder 3, 4 is an intake manifold, 5 is an exhaust manifold, and 6 is an exhaust turbocharger. Respectively. The intake manifold 4 is connected to the outlet portion of the intake compressor 6 a of the exhaust turbocharger 6, and the inlet portion of the intake compressor 6 a is connected to the air cleaner 8 via the intake duct 7. An intake throttle valve 10 driven by an actuator 9 such as a step motor is disposed in the intake duct 7.

  On the other hand, the exhaust manifold 5 is connected to the inlet portion of the exhaust turbine 6 b of the exhaust turbocharger 6, and the outlet portion of the exhaust turbine 6 b is connected to the exhaust pipe 12. The intake manifold 4 and the exhaust manifold 5 are connected to each other through an exhaust gas recirculation (hereinafter referred to as EGR) passage 13, and an EGR control valve 15 driven by an actuator 14 such as a step motor in the EGR passage 13. Is arranged.

  On the other hand, the fuel injection valve 2 is connected to a common rail 17 through a fuel supply pipe 16. Fuel is supplied into the common rail 17 from an electrically controlled fuel pump 18 with variable discharge amount, and the fuel supplied into the common rail 17 is supplied to the fuel injection valve 2 via each fuel supply pipe 16. A fuel pressure sensor 19 for detecting the fuel pressure in the common rail 17 is attached to the common rail 17, and a fuel pump 18 is configured so that the fuel pressure in the common rail 17 becomes a target fuel pressure based on an output signal of the fuel pressure sensor 19. The discharge amount is controlled.

  An electronic control unit 20 for controlling the operation of the internal combustion engine is composed of a digital computer, and is connected to each other by a bidirectional bus 21, a ROM (read only memory) 22, a RAN (random access memory) 23, a CPU (microprocessor). 24, and an input / output port 25. Output signals of various sensors such as the fuel pressure sensor 19 are input to the input / output port 25 via corresponding AD converters 26. A load sensor 29 that generates an output voltage proportional to the amount of depression of the accelerator pedal 28 is connected to the accelerator pedal 28, and an output signal of the load sensor 29 is connected to the input / output port 25 via a corresponding AD converter 26. Entered. The crank angle sensor 30 generates an output pulse every time the engine rotates by a crank angle of 15 °, for example, and this output pulse is input to the input / output port 25.

  On the other hand, the input / output port 25 is connected to the fuel injection valve 2, the throttle valve actuator 9, the EGR control valve actuator 14, and the fuel pump 18 through corresponding drive circuits 27. In addition, a variable nozzle mechanism including a large number of vane nozzles 32 driven by an actuator 31 is disposed in a dephasor portion of the exhaust turbine 6 b, and the input / output port 25 is connected to the actuator 31 via a corresponding drive circuit 27. .

As shown in FIG. 1, an electronic control unit 40 is provided for performing an adaptation action, and an output shaft of the internal combustion engine is connected to a dynamometer 41. This dynamometer 41 is connected to the electronic control unit 40 and is controlled by the electronic control unit 40. Further, an analyzer 42 for exhaust components such as NO _x amount, smoke concentration, particulate amount, HC amount, CO amount in the exhaust gas, and a noise vibration meter 43 for detecting noise vibration generated by the internal combustion engine are provided. The output signals of the exhaust component analyzer 42 and the noise vibration meter 43 are input to the electronic control unit 40. The electronic control unit 40 and the input / output port 25 of the electronic control unit 20 are connected to each other via a bidirectional bus 44.

Next, the automatic adaptation method according to the present invention will be described.
In the automatic calibration method according to the present invention, the calibration target value is determined for each of the plurality of output values, and the engine control parameters are operated so that each output value satisfies the corresponding calibration target value. A matching value for the parameter is searched.

In the embodiment according to the present invention, all or some of emissions, noise vibration, and fuel consumption are adopted as the plurality of output values, and the emissions include NO _x amount, smoke concentration or particulates in the exhaust gas. All of the amount, HC amount, CO amount or a part of them is employed. Further, regarding the target values for adaptation, in the embodiment according to the present invention, among these output values, the target values for NO _x amount, particulate amount, HC amount, CO amount, and fuel consumption are traveled in the travel mode for evaluating emissions. The total output target value, which is the integrated value at the time, is set, and the remaining output values, that is, the target values for noise vibration and smoke concentration are set as target values in the respective corresponding operating states. In addition, for the NO _x amount, the particulate amount, the HC amount, the CO amount, and the fuel consumption for which the total amount target value is determined, the conformity target value in each conforming operation state is also set.

  Here, each suitable operating state is determined as a point on the map, and in the embodiment according to the present invention, each suitable operating state is a function of the engine load L and the engine speed N as indicated by a black circle in FIG. That is, the target value of each output value is determined for each of the compatible operation states indicated by black circles in FIG.

  On the other hand, in the embodiment according to the present invention, the engine control parameters to be adapted are the main injection timing, pilot injection timing, pilot injection amount, common rail pressure, EGR control valve opening, intake throttle valve opening, and turbocharger variable. It is all or part of the nozzle opening. As described above, these engine control parameters are manipulated so that each output value satisfies the corresponding target value. More specifically, the parameter is manipulated so that the output value decreases when the output value exceeds the conforming target value.

  In this case, in the embodiment according to the present invention, the relationship between the operation order of the parameter to be operated when the output value exceeds the conformity target value and the output value with the operation direction is stored in advance as shown in FIG. When the output value exceeds the matching target value, that is, when the output value deteriorates, the parameter operation order and operation direction are determined based on the relationship shown in FIG.

That is, FIG. 3 uses the smoke concentration, NO _x , HC, and CO noise vibration as output values, the main injection timing, the pilot injection interval indicating the interval between the main injection and the pilot injection, the pilot injection amount, the common rail pressure, and the EGR control valve. An example of engine operation control parameters is shown. FIG. 3 shows a case where one of the output values exceeds the conforming target value, and the output value exceeding the conforming target value is described in the column of the deterioration item of the output value. In addition, since the amount of HC and CO decreases as the combustion becomes better and the fuel consumption becomes better, the amount of HC and CO in the output value represents the fuel efficiency.

  On the other hand, the numbers surrounded by circles in the parameter column indicate the parameter operation order. For example, when the smoke in FIG. 3 deteriorates, the operation order is the EGR control valve, the main injection timing, the common rail pressure, the pilot injection interval, and the pilot injection amount. This operation order is an order that is considered to have a great influence on the reduction of the corresponding output value from experience.

  The characters in the parameter column indicate the operation direction of the parameter. For example, when the smoke deteriorates, the EGR control valve indicates that the operation direction is a direction to close the EGR control valve. In addition, when two characters are present in the parameter column, there are cases where it is not known which operation direction affects the reduction of the output value, or cases where the operation direction differs depending on the injection timing. For example, when the smoke deteriorates, the main injection timing is a case where it is unclear whether it is better to retard or advance the injection timing in order to reduce the smoke concentration. In addition, the main injection timing when HC and CO deteriorated should be retarded if the injection timing is BTDC (before compression top dead center) and advanced if it is ATDC (after compression top dead center). ing.

  On the other hand, in the present invention, each parameter is operated so that the output values sequentially satisfy the corresponding target values according to the predetermined priority order, and the priority order of these output values is predetermined according to the operating state of the engine. ing. More specifically, in the embodiment according to the present invention, as shown in FIG. 4, the engine operating area is divided into a plurality of operating areas A, B, C, D, and each operating area as shown in FIG. In A, B, C, and D, different priority orders are assigned to the output values.

More specifically, in the embodiment according to the present invention, as shown in FIG. 4, the engine operating range is a low speed low load area A, a low speed medium load and medium high speed low medium load area B, a low speed high load area C, As shown in FIG. 5, the priority order for the region A is 1HC, CO, 2 noise vibration, 3 smoke, 4NO _x , as shown in FIG. the priority order is 1NO _x, 2 smoke, 3 noise sequence, is 4HC, and CO, the priority order for the area C 1 smoke, 2HC, CO, 3 noise and vibration, is a 4NO _x, for the area D 1Hc, CO , 2 smoked, 3 noise vibration, are 4NO _x.

That is, in the low-speed and low-load region A, improvement of fuel efficiency is particularly important during idling operation, and suppression of engine vibration during idling operation is also an important issue. In contrast less smoke concentration or particulate emissions because a small amount of fuel injection during low-speed low-load operation, the amount of the NO _x due to the low combustion temperature is small. That is, the smoke concentration, the particulate discharge amount, and the NO _x discharge amount hardly become a problem during the low speed and low load operation. Therefore, in the low-speed and low-load region A, improvement in fuel consumption, that is, reduction of HC and CO is priority 1, and suppression of noise vibration is priority 2.

On the other hand, the low-speed medium load and the medium-high speed low-medium load region B are regions that are most frequently used during normal operation. Therefore, in this region B, reduction of emission becomes the highest priority issue. In this region B, combustion is relatively easy even if a large amount of EGR gas is recirculated, and therefore, a large amount of smoke can be avoided even if a large amount of EGR gas is recirculated. On the other hand, the amount of the recirculating a large amount of EGR gas NO _x is reduced. Thus is brought recycle a large amount of EGR gas in this region B, reduction of the NO _x is the priority 1, the reduction of smoke is a priority 2.

  On the other hand, the low-speed and high-load region C appears mainly in the initial stage of acceleration operation. In this region C, although the fuel injection amount increases, the intake air amount tends to be insufficient due to a delay in the intake air transfer, and therefore smoke is likely to occur. Therefore, in this region C, smoke suppression is given priority 1. In addition, since high output is required at the beginning of the acceleration operation, it is necessary to burn a large amount of fuel satisfactorily. Therefore, priority is given to reducing HC and CO emissions, that is, improving fuel consumption. Is done.

On the other hand, the medium / high speed / high load region D is a region where a high output is required. Therefore, in this region D, it is necessary to burn a large amount of fuel satisfactorily. Accordingly, in this region D, priority is given to reducing HC and CO emissions, that is, improving fuel consumption. Further, in this region D, the recirculation of EGR gas is stopped in order to ensure the output and to prevent the EGR control valve 15 from deteriorating due to the exhaust gas temperature becoming high. Therefore, since it is difficult to reduce NO _x , in this region D, NO _x reduction is the lowest priority. On the other hand, when the recirculation of the EGR gas is stopped, a sufficient amount of intake air is secured, so that the generation of smoke is suppressed. Therefore, in this region D, the reduction of smoke is given priority 2.

Next, the automatic adaptation method according to the present invention will be described along the automatic adaptation routine shown in FIGS.
Referring to FIGS. 6 and 7, first, in step 50, a plurality of operating states to be fitted, that is, the positions of the points on the map in FIG. Next, at step 51, the priority order of the output values to be subjected to the adaptation process is determined as shown in FIG. 5 for each of the operation areas A, B, C, and D shown in FIG. Next, at step 52, initial values of a plurality of engine operation control parameters are determined for each operation state to be adapted, and a search range for each parameter is set together. Next, at step 53, a conformity target value for each output value is calculated.

Next, at step 54, the engine is operated according to the initial parameter values in a certain operating state to be adapted, and each output value, that is, the amount of HC, CO, the magnitude of noise vibration, the smoke concentration, and the amount of NO _{x is} determined. Detected. Next, at step 55, evaluation function values D ₁ , D ₂ , D ₃ , and D ₄ are calculated for each output value according to the priority order. In the embodiment according to the present invention, the ratio of the output value to the target value of each output value, that is, the output value / target target value is used as the evaluation function. Therefore, as can be seen from FIG. The target value of CO amount / HC, CO is set as the evaluation function value D ₁ , the noise vibration magnitude / noise vibration target value is set as the evaluation function value D _2, and the smoke concentration / smoke concentration target The value is the evaluation function D _3, and the target value of NO _x amount / NO _x amount is D _{4 of the} evaluation function.

  When the output value satisfies the conformity target value, the value of the evaluation function is less than or equal to 1.0. When the output value exceeds the conformance target value, the value of the evaluation function becomes greater than 1.0. . Therefore, in the embodiment according to the present invention, a parameter is searched for such that the value of the evaluation function is 1.0 or less when the output value exceeds the conforming target value.

That is, when the values D ₁ , D ₂ , D ₃ , D ₄ of the respective evaluation functions are calculated in step 55, the process proceeds to step 56, and whether or not the output value satisfies the corresponding target value according to the priority order, that is, It is determined whether or not the value of each evaluation function is 1.0 or less in the order of D ₁ , D ₂ , D ₃ , and D ₄ . That is, whether the value D ₁ of the evaluation function for the highest priority output value of 1.0 or less at first, at step 56 is determined. FIG. 8 shows that when D ₁ > 1.0, that is, when the highest priority output value does not satisfy the adaptation target value, the routine proceeds to step 57 so that the highest priority output value satisfies the adaptation target value. The parameters are manipulated according to the parameter manipulation routine.

That is, in step 80 of FIG. 8, the output value determined in the immediately preceding step, here the output value determined not satisfying the conformity target value in step 56, that is, the output value having the highest priority satisfies the conformity target value. The operation order and operation direction of the parameters are determined based on the relationship between the output value shown and the parameter. Next, at step 81, the parameters are operated according to the operation order and operation direction determined at step 80. Next, at step 82, the evaluation function values D ₁ , D ₂ , D ₃ , and D ₄ for each output value are calculated.

Next, at step 83, it is judged if the parameter operation should be terminated. When any of D ₁ to D ₄ is greater than 1.0, the process returns to step 81, and the parameters are operated according to the operation sequence and operation method determined in step 80. On the other hand, when all of D ₁ to D ₄ are equal to or less than 1.0, that is, when parameter adaptation is completed, it is determined in step 83 that the parameter operation should be terminated. Proceed to 64.

  On the other hand, the parameter operation is also terminated in step 83 even when all the parameter operations are terminated in accordance with the operation sequence and operation direction determined in step 80 in step 81 and the output value does not satisfy the conformity target value. The process proceeds to step 64 in FIG. That is, the process proceeds to step 64 in FIG. 7 when the parameter matching is completed or when the parameter matching is not completed.

On the other hand, when it is determined in step 56 that the evaluation function D ₁ for the output value with priority ₁ is 1.0 or less, the routine proceeds to step 58 where the value D _{2 of the} evaluation function for the output value with priority ₂ is 1. It is discriminated whether it is less than or equal to .0. When D ₂ > 1.0, that is, when the output value with the priority of 2 does not satisfy the conformity target value, the routine proceeds to step 59 where the parameter operation shown in FIG. 8 is performed. That is, at this time, the parameter is operated based on the relationship between the output value and the parameter shown in FIG. 3 so that the output value with the priority of 2 satisfies the conformity target value.

On the other hand, when it is determined in step 58 that the evaluation function D ₂ for the output value with priority ₂ is 1.0 or less, the routine proceeds to step 60 where the value D _{3 of the} evaluation function for the output value with priority ₃ is 1. It is discriminated whether it is less than or equal to .0. When D ₃ > 1.0, that is, when the output value with the priority of 3 does not satisfy the matching target value, the routine proceeds to step 61 where the parameter operation shown in FIG. 8 is performed. That is, at this time, the parameter is operated based on the relationship between the output value and the parameter shown in FIG. 3 so that the output value with the priority 3 satisfies the conformity target value.

On the other hand, when it is determined in step 60 that the evaluation function D ₃ for the output value with priority ₃ is 1.0 or less, the routine proceeds to step 62 where the value D _{4 of the} evaluation function for the output value with priority ₄ is 1. It is discriminated whether it is less than or equal to .0. When D ₄ > 1.0, that is, when the output value of priority 4 does not satisfy the conformity target value, the routine proceeds to step 63 where the parameter operation shown in FIG. 8 is performed. In other words, at this time, the parameter is operated based on the relationship between the output value and the parameter shown in FIG.

On the other hand, when it is determined in step 62 that the evaluation function D ₄ for the output value with the priority ₄ is 1.0 or less, the process proceeds to step 64. In step 64, it is determined whether or not the parameter matching is completed for one operating state to be matched. When the parameter adaptation is completed for one operating state, the routine proceeds to step 65, where it is determined whether or not the parameter adaptation is completed for all operating states. When it is determined that the parameter adaptation has not been completed for all the operation states, the process proceeds to step 66 to move to the operation state to be adapted next.

  On the other hand, when it is determined in step 64 that the adaptation of the parameter is not completed for one operating state, that is, the adaptation of the parameter is also performed by the parameter operation in any one of steps 57, 59, 61, 63. If not completed, the routine proceeds to step 67, where the target value of the output value is increased in order from the output value with the lowest priority. FIG. 9 shows the action of changing the adaptation target value performed in step 67.

  That is, as shown in FIG. 9, in step 90, it is determined whether or not the first adaptation target value changing operation is performed. In the case of the first adaptation target value changing operation, the routine proceeds to step 91 where the adaptation target value of the lowest priority is increased. Next, the routine returns to step 56, where the adaptation parameter search operation is performed again. If the parameter adaptation operation is not completed even if the first adaptation target value changing operation is performed, the process proceeds from step 64 in FIG. 7 to step 90 in FIG. At this time, in step 92, it is determined that the second adaptation target value changing operation is performed, so the routine proceeds to step 93 where the adaptation target value having the second lowest priority is increased. Next, the routine returns to step 56, where the adaptation parameter search operation is performed again.

  In this way, even if the second adaptation target value changing operation is performed, if the parameter adaptation operation is not completed, the process proceeds from step 64 in FIG. 7 to steps 90 and 92 in FIG. At this time, at step 94, it is determined that the action is the third adaptation target value changing operation, so the routine proceeds to step 95 where the adaptation target value with the third lowest priority is increased. Next, the routine returns to step 56, where the adaptation parameter search operation is performed again. In this way, even if the third adaptation target value changing operation is performed, if the parameter adaptation operation is not completed, the process proceeds from step 64 in FIG. 7 to steps 90, 92 and 94 in FIG. At this time, in step 96, it is determined that the action is the fourth adaptation target value changing operation, so the routine proceeds to step 97 where the adaptation target value having the fourth lowest priority is increased. Next, the routine returns to step 56, where the adaptation parameter search operation is performed again.

  Thus, even if the fourth adaptation target value changing operation is performed, if the parameter adaptation operation is not completed, the process proceeds from step 64 in FIG. 7 to steps 90, 92, 94 and 96 in FIG. . At this time, the action of changing the adaptation target value is completed. Normally, the parameter adaptation operation is completed if the adaptation target value is changed once or twice.

When it is determined in step 65 of FIG. 7 that the parameter adaptation operation in all operating states has been completed, the routine proceeds to step 68 where the emission is evaluated for the output value having the total amount target value, that is, the NO _x amount, HC, and CO amount. An integrated value of the output values when traveling in the travel mode is calculated. Next, at step 69, it is judged if the output value having the total amount target value satisfies the total amount target value. When the output value having the total amount target value satisfies the total amount target value, the processing cycle is completed and the automatic adaptation is completed. On the other hand, when the output value having the total amount target value does not satisfy the total amount target value, the routine proceeds to step 70 where the adaptation target value is reviewed as a whole and the adaptation action is performed again.

Next, with reference to FIG. 10, a description will be given of an automobile adapted to be automatically adapted on-board.
FIG. 10 shows the engine main body 1 and the electronic control unit 20 mounted on the automobile. In this case, if vehicle control parameters (this parameter includes engine control parameters) are input in order to perform adaptation, A vehicle model that outputs an output value is used. Therefore, in this case, the value calculated using the vehicle model is used as the output value when the parameter is operated. In other respects, the fitting operation is performed using the same routine as that shown in FIGS. This conforming operation can be performed at the time of factory shipment or battery replacement, or can be performed while the vehicle is running.

  As shown in FIG. 10, the actual output value of the vehicle is measured using the exhaust component analyzer 42, the noise vibration meter 43, etc., and the vehicle model is corrected based on these measured output values. Done.

  Further, as shown in FIG. 10, an exchangeable storage medium 33 such as a CD-ROM can be connected to the bidirectional bus 21 of the electronic control unit 20, and the vehicle model is stored in the recording medium 33. You can also. Furthermore, a program for causing a computer to realize the automatic adaptation method according to the present invention can be stored in the recording medium 33.

  In addition, when moving to an area where exhaust emission regulation values or travel modes for exhaust emission regulations differ, these emission regulation values and travel modes may be automatically switched based on information transmitted from a communication station. preferable. Accordingly, the traveling mode can be received from the outside by the communication means.

It is a general view of an automatic adaptation apparatus. It is a figure which shows a map. It is a figure which shows the operation order and operation direction of a parameter. It is a figure which shows each driving | operation area | region. It is a figure which shows the priority of an output value. It is a flowchart for performing automatic adaptation. It is a flowchart for performing automatic adaptation. It is a flowchart for performing parameter operation. It is a flowchart for changing a conformity target value. 1 is an overall view of an internal combustion engine.

Explanation of symbols

1 ... Engine body 20, 40 ... Electronic control unit

Claims (6)

  A suitable target value is determined for each of the plurality of output values, and the engine operation control parameters are operated so that the output values satisfy the corresponding target target values sequentially according to a predetermined priority order. An automatic adaptation device in which the priority order of values is predetermined according to the operating state of the engine. The output value is all or part of emissions, noise vibration, fuel consumption, and emissions are all or part of NO _x amount, smoke concentration or particulate amount, HC amount, CO amount in exhaust gas. The automatic adapting device according to claim 1, which is a part.   The above parameters are all or any of the main injection timing, pilot injection timing, pilot injection amount, common rail pressure, recirculation exhaust gas control valve opening, intake throttle valve opening, turbocharger variable nozzle opening. The automatic adaptation device according to claim 1, which is a part of   The relationship between each output value and the operation sequence and operation direction of the parameter to be operated when the output value exceeds the conformance target value is stored in advance, and when the output value exceeds the conformance target value, based on the relationship The automatic adaptation apparatus according to claim 1, wherein an operation order and an operation direction of the parameters are determined.   The automatic adaptation apparatus according to claim 1, wherein the engine operating area is divided into a plurality of operating areas, and each output value is given a different priority in each operating area.   If all or any of the output values do not meet the compliance target value, first increase the compliance target value of the output value with the lowest priority and perform the adaptation action again. The automatic adaptation device according to claim 1, wherein when the output value does not satisfy the adaptation target value, the adaptation target value of the output value having the next lowest priority is increased.

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