JP2024029550A - Drive device and power generation device - Google Patents

Abstract

To prevent a discrepancy between an amount of hydrogen consumed by an internal combustion engine and an amount of hydrogen supplied to the internal combustion engine.SOLUTION: A drive device comprises: a reactor 25 which produces hydrogen; an internal combustion engine 40 using the hydrogen produced with the reactor 25 as fuel; and a control device 90 which controls output of the internal combustion engine 40 through adjusting an amount of the hydrogen supplied to the internal combustion engine 40 on the basis of demand output which is a demand value with respect to output of the internal combustion engine 40. Given that the amount of the hydrogen supplied to the internal combustion engine 40 according to the demand output is defined as a reference supply amount, the control device 90 changes the amount of the hydrogen supplied to the internal combustion engine 40 with respect to the reference supply amount in a case of a difference between the output of the internal combustion engine 40 and the demand output so as to reduce the difference between the same.SELECTED DRAWING: Figure 1

Description

The present invention relates to a drive device including an internal combustion engine that uses hydrogen as fuel, and a power generation device including the drive device and a generator.

Patent Document 1 discloses a drive device that includes a reactor that generates hydrogen and an internal combustion engine that uses the hydrogen generated by the reactor as fuel. In this drive device, the amount of hydrogen generated in the reactor is adjusted depending on the future operating state of the internal combustion engine.

US Patent No. 10400687

If there is a discrepancy between the amount of hydrogen consumed by the internal combustion engine and the amount of hydrogen supplied to the internal combustion engine, the output of the internal combustion engine may be significantly lower than the required output of the internal combustion engine, or unburned hydrogen may be There is a risk that they may end up staying in the institution.

A first aspect of a drive device for solving the above problems includes a reactor that generates hydrogen, an internal combustion engine that uses the hydrogen generated by the reactor as fuel, and a required output that is a required value for the output of the internal combustion engine. a control device that controls the output of the internal combustion engine by adjusting the amount of hydrogen supplied to the internal combustion engine based on the amount of hydrogen supplied to the internal combustion engine. When the amount of hydrogen supplied to the internal combustion engine according to the required output is set as the reference supply amount, if there is a difference between the output of the internal combustion engine and the required output, the output of the internal combustion engine and the The amount of hydrogen supplied to the internal combustion engine is changed with respect to the reference amount of supply in order to reduce the magnitude of the difference from the required output.

In the drive device, when there is a difference between the output of the internal combustion engine and the required output, the amount of hydrogen supplied to the internal combustion engine is adjusted to reduce the magnitude of the difference. Therefore, it is possible to suppress the occurrence of a discrepancy between the amount of hydrogen consumed by the internal combustion engine and the amount of hydrogen supplied to the internal combustion engine.

A second aspect of the drive device for solving the above problems includes a reactor that generates hydrogen, an internal combustion engine that uses hydrogen generated by the reactor as fuel, and an output of the internal combustion engine that supplies hydrogen to the internal combustion engine. and a control device that controls the output of the internal combustion engine so that the output is based on the supply amount of the internal combustion engine. The control device reduces the amount of hydrogen supplied to the internal combustion engine when a predetermined abnormality occurs in the internal combustion engine.

The drive device reduces the output of the internal combustion engine by reducing the amount of hydrogen supplied to the internal combustion engine when a predetermined abnormality occurs in the internal combustion engine. That is, even if the output of the internal combustion engine decreases and the amount of hydrogen consumed by the internal combustion engine decreases, the amount of hydrogen supplied to the internal combustion engine also decreases. Therefore, the drive device can suppress the occurrence of a discrepancy between the amount of hydrogen consumed by the internal combustion engine and the amount of hydrogen supplied to the internal combustion engine.

A first aspect of a power generation device for solving the above problems includes the drive device of the first aspect and a generator that generates electricity based on the output of the internal combustion engine. The control device makes the amount of hydrogen supplied to the internal combustion engine smaller than the reference amount of supply when the power generation of the generator is restricted.

When the power generation of the generator is limited, the power generation device reduces the amount of hydrogen supplied to the internal combustion engine to be less than the reference amount of supply, thereby making the output of the internal combustion engine smaller than the required output. That is, even if the output of the internal combustion engine decreases and the amount of hydrogen consumed by the internal combustion engine decreases, the amount of hydrogen supplied to the internal combustion engine also decreases. Therefore, even if the power generation of the generator is limited and the output of the internal combustion engine is reduced, the power generation device described above does not cause a discrepancy between the amount of hydrogen consumed by the internal combustion engine and the amount of hydrogen supplied to the internal combustion engine. can be suppressed.

A second aspect of a power generation device for solving the above problem includes the drive device of the second aspect and a generator that generates electricity based on the output of the internal combustion engine. The control device reduces the amount of hydrogen supplied to the internal combustion engine when power generation by the generator is restricted.

The power generation device reduces the output of the internal combustion engine by reducing the amount of hydrogen supplied to the internal combustion engine when the power generation of the generator is limited. That is, even if the output of the internal combustion engine decreases and the amount of hydrogen consumed by the internal combustion engine decreases, the amount of hydrogen supplied to the internal combustion engine also decreases. Therefore, even if the power generation of the generator is limited and the output of the internal combustion engine is reduced, the power generation device described above does not cause a discrepancy between the amount of hydrogen consumed by the internal combustion engine and the amount of hydrogen supplied to the internal combustion engine. can be suppressed.

FIG. 1 is a configuration diagram showing an outline of a power generation device according to a first embodiment. FIG. 2 is a block diagram showing a plurality of processes executed by the CPU of the control device included in the power generation device of the first embodiment. FIG. 3 is a graph showing temporal changes in hydrogen concentration, oil moisture content, or generator temperature. FIG. 4 is a flowchart showing an abnormality determination process executed by the CPU of the control device. FIG. 5 is a flowchart showing adjustment processing executed by the CPU of the control device. FIG. 6 is a block diagram showing a plurality of processes executed by the CPU of the control device included in the power generation device of the second embodiment.

(First embodiment)
Hereinafter, a first embodiment of a drive device and a power generation device will be described according to FIGS. 1 to 5.
As shown in FIG. 1, the power generation device 10 includes a hydrogen generation device 20, an internal combustion engine 40, a generator 80, and a control device 90. The generator 80 generates electricity according to the output of the internal combustion engine 40. In this embodiment, the hydrogen generator 20, the internal combustion engine 40, and the control device 90 constitute an example of a "drive device."

<Hydrogen generator>
The hydrogen generator 20 is a device that generates hydrogen gas and supplies the hydrogen gas to the internal combustion engine 40. The hydrogen generator 20 includes a storage section 21, a supply pump 23, a reactor 25, and a DC power source 26. Hereinafter, hydrogen gas will be simply referred to as "hydrogen".

The storage section 21 stores pure water, which is a material for generating hydrogen.
The supply pump 23 is an electric pump that draws pure water from the storage section 21 and discharges the pure water. Feed pump 23 is connected to reactor 25 via water supply passage 231 . The water supply passage 231 is a passage that supplies pure water discharged by the supply pump 23 to the reactor 25.

The reactor 25 is a device that generates hydrogen by a solid polymer type water electrolysis method. The reactor 25 generates hydrogen using pure water supplied through the water supply passage 231. Reactor 25 is connected to internal combustion engine 40 via connecting passage 27 .

The reactor 25 has an anode main electrode 251, a cathode main electrode 252, an ion exchange membrane 253, an anode catalyst electrode 254, and a cathode catalyst electrode 255. The ion exchange membrane 253 is located between the anode main electrode 251 and the cathode main electrode 252. An anode catalyst electrode 254 is interposed between the ion exchange membrane 253 and the anode main electrode 251. A cathode catalyst electrode 255 is interposed between the ion exchange membrane 253 and the cathode main electrode 252.

The DC power supply 26 is a power supply device that applies voltage to the reactor 25. A positive electrode of the DC power supply 26 is electrically connected to the anode main electrode 251 . A negative electrode of DC power supply 26 is electrically connected to cathode main electrode 252 . Therefore, the DC power supply 26 supplies positive charges to the anode main electrode 251 and supplies negative charges to the cathode main electrode 252.

When the DC power supply 26 applies voltage to the reactor 25 in this manner, an anodic reaction as shown in the following equation (A1) occurs, and a cathodic reaction as shown in the following equation (A2) occurs. As a result, hydrogen is generated in the reactor 25.

2H ₂ O→O ₂ +4H ⁺ +4e ^- (A1)
4H ⁺ +4e ^- →H ₂ (A2)
Hydrogen generated in the reactor 25 is guided to the connecting passage 27. Hydrogen is then supplied to the internal combustion engine 40 via the connection passage 27. On the other hand, oxygen generated in the reactor 25 flows out of the reactor 25 from the oxygen passage 256.

Note that an air supply passage 28 is connected to the connection passage 27 . The air supply passage 28 is a passage for introducing air into the connection passage 27. Therefore, a mixture containing hydrogen and air is supplied to the internal combustion engine 40 via the connection passage 27.

<Internal combustion engine>
The internal combustion engine 40 is an internal combustion engine that uses hydrogen generated by the reactor 25 as fuel. Internal combustion engine 40 includes a cylinder block 41, a crankcase 43, an oil pan 45, and a cylinder head 47.

The crankcase 43 is attached to the lower part of the cylinder block 41. A crankshaft 49 that is the output shaft of the internal combustion engine 40 is accommodated within the crankcase 43 . Oil pan 45 is attached to the lower part of crankcase 43. Oil that circulates through the internal combustion engine 40 is stored in the oil pan 45 .

The cylinder head 47 is attached to the upper part of the cylinder block 41. A plurality of cylinders 51 are defined by the cylinder block 41 and the cylinder head 47. In FIG. 1, only one of the plurality of cylinders 51 is illustrated.

The internal combustion engine 40 includes the same number of pistons 53 and connecting rods 55 as the number of cylinders 51. The pistons 53 are housed within the corresponding cylinders 51 and connected to the crankshaft 49 via the corresponding connecting rods 55. As the plurality of pistons 53 reciprocate within the cylinder 51, the crankshaft 49 rotates. Note that the space defined by the peripheral wall of the cylinder 51 and the piston 53 is referred to as a combustion chamber 57.

A connection passage 27 and an exhaust passage 59 are connected to the cylinder head 47 . The connection passage 27 is a passage through which the air-fuel mixture to be introduced into the plurality of combustion chambers 57 flows. The connection passage 27 is provided with an electrically operated adjustment valve 61 that adjusts the amount of air-fuel mixture introduced into the combustion chamber 57 . Specifically, the adjustment valve 61 is disposed in a portion of the connection passage 27 downstream of the connection portion with the air supply passage 28 . The smaller the opening degree of the adjustment valve 61, the smaller the amount of air-fuel mixture introduced into the plurality of combustion chambers 57. In the plurality of combustion chambers 57, the air-fuel mixture introduced into the combustion chambers 57 is combusted. When the air-fuel mixture is combusted in this manner, exhaust gas is generated in the plurality of combustion chambers 57. Then, the exhaust gas generated in the plurality of combustion chambers 57 is discharged into the exhaust passage 59.

A generator 80 is connected to the crankshaft 49 . Therefore, power generated by combustion of the air-fuel mixture in the plurality of combustion chambers 57 is transmitted to the generator 80 via the piston 53, the connecting rod 55, and the crankshaft 49. Thereby, the generator 80 generates electricity based on the output of the internal combustion engine 40.

Internal combustion engine 40 includes multiple sensors. The plurality of sensors include a crank angle sensor 71, a hydrogen concentration sensor 72, and a water content sensor 73. Crank angle sensor 71 detects the rotation angle of crankshaft 49 . Hydrogen concentration sensor 72 detects the hydrogen concentration within crankcase 43. The moisture sensor 73 detects the amount of moisture in the oil remaining in the oil pan 45 . These plurality of sensors 71 to 73 output signals according to detection results to the control device 90.

<Control device>
The control device 90 includes a CPU 91 and a memory 93. The memory 93 stores a control program executed by the CPU 91. That is, the CPU 91 is an execution unit that executes a control program. The CPU 91 adjusts the amount of hydrogen generated by the hydrogen generator 20, the output of the internal combustion engine 40, and the amount of power generated by the generator 80 by executing a control program.

Various processes executed by the CPU 91 will be described with reference to FIGS. 2 to 5.
As shown in FIG. 2, the CPU 91 executes a required output setting process M11, a supply amount deriving process M13, an abnormality determination process M15, a deviation determination process M16, and an adjustment process M17.

<Request output setting process>
The CPU 91 sets a required output PER, which is a required value of the output of the internal combustion engine 40, in a required output setting process M11. For example, when causing the generator 80 to generate electricity, the CPU 91 sets a preset output as the required output PER.

<Supply amount derivation process>
In the supply amount deriving process M13, the CPU 91 derives an amount corresponding to the required output PER as the hydrogen supply amount SH, which is the amount of hydrogen supplied from the reactor 25 to the internal combustion engine 40. For example, the CPU 91 derives a larger value as the hydrogen supply amount SH as the required output PER is larger.

<Abnormality determination processing>
In abnormality determination processing M15, the CPU 91 determines whether a predetermined abnormality has occurred in the internal combustion engine 40. The predetermined abnormality is an abnormality that requires protection of the internal combustion engine 40. For example, the CPU 91 determines whether a predetermined abnormality has occurred in the internal combustion engine 40 based on the hydrogen concentration CH in the crankcase 43 and the water content AW of oil retained in the oil pan 45.

Furthermore, in the abnormality determination process M15, the CPU 91 determines whether or not it is necessary to limit the power generation of the generator 80. For example, the CPU 91 determines whether it is necessary to limit the power generation of the generator 80 based on the generator temperature TPg, which is the temperature of the generator 80.

The abnormality determination process M15 will be described in detail with reference to FIGS. 3 and 4. The abnormality determination process M15 is repeatedly executed at every predetermined control cycle.
As shown in FIG. 4, in step S11 of the abnormality determination process M15, the CPU 91 acquires the hydrogen concentration CH in the crankcase 43. For example, the CPU 91 obtains the hydrogen concentration based on the detection value of the hydrogen concentration sensor 72 as the hydrogen concentration CH.

In the next step S13, the CPU 91 determines whether the hydrogen concentration CH is equal to or higher than the determination hydrogen concentration CH. When the hydrogen concentration in the crankcase 43 becomes high, the CPU 91 executes scavenging processing for the purpose of protecting the internal combustion engine 40, for example. The scavenging process is a process for discharging hydrogen from inside the crankcase 43 to the outside of the crankcase 43. A determination hydrogen concentration CHth is set as a criterion for determining whether or not it is necessary to execute a process aimed at protecting the internal combustion engine 40. When the CPU 91 determines that the hydrogen concentration CH is equal to or higher than the determined hydrogen concentration CHth (S13: YES), the CPU 91 shifts the process to step S23. On the other hand, when the CPU 91 determines that the hydrogen concentration CH does not exceed the determined hydrogen concentration CHth (S13: NO), the process proceeds to step S15.

Referring to FIG. 3, the determination process in step S13 will be described in detail. The CPU 91 monitors changes in the hydrogen concentration CH as shown by the solid line in FIG. Then, the CPU 91 creates an approximate expression representing a change in the amount of increase in the hydrogen concentration CH, as shown by a two-dot chain line in FIG. 3, based on the change in the hydrogen concentration CH. Subsequently, the CPU 91 uses the approximate expression to estimate the arrival timing ta, which is the timing at which the hydrogen concentration CH reaches the determined hydrogen concentration CHth. When the reference timing tb is a time before the arrival timing ta by a predetermined grace time TMa, the CPU 91 determines that if the reference timing tb is chronologically earlier than the current time, the hydrogen concentration CH is equal to or higher than the determined hydrogen concentration CHth. It is determined that On the other hand, if the reference timing tb is later than the current point in time, the CPU 91 determines that the hydrogen concentration CH does not exceed the determination hydrogen concentration CHth.

Returning to FIG. 4, in step S15, the CPU 91 obtains the water content AW of the oil circulating in the internal combustion engine 40. For example, the CPU 91 obtains the moisture content based on the detected value of the moisture content sensor 73 as the moisture content AW. In this case, the water content AW is the water content of the oil in the oil pan 45.

In the next step S17, the CPU 91 determines whether the moisture content AW is equal to or greater than the determination moisture content AWth. When hydrogen is burned in the combustion chamber 57, water is produced. A portion of the water generated in the combustion chamber 57 leaks into the oil pan 45 through the gap between the peripheral wall of the cylinder 51 and the piston 53. Therefore, the amount of water in the oil in the oil pan 45 increases. That is, the amount of water in the oil circulating through the internal combustion engine 40 increases. When the water content of the oil increases, the CPU 91 executes evaporation processing for the purpose of protecting the internal combustion engine 40, for example. The evaporation process is a process that reduces the water content of oil by evaporating water contained in the oil. A determination water amount AWth is set as a criterion for determining whether or not it is necessary to execute a process aimed at protecting the internal combustion engine 40. If the CPU 91 determines that the moisture content AW is equal to or greater than the determined moisture content AWth (S17: YES), the process proceeds to step S23. On the other hand, if the CPU 91 determines that the moisture content AW is not equal to or greater than the determined moisture content AWth (S17: NO), the process proceeds to step S19.

Referring to FIG. 3, the determination process in step S17 will be described in detail. The CPU 91 monitors changes in the water content AW as shown by the solid line in FIG. Then, the CPU 91 creates an approximate equation indicating the change in the amount of increase in the water content AW, as shown by the two-dot chain line in FIG. 3, based on the change in the water content AW. Subsequently, the CPU 91 uses the approximate expression to estimate the arrival timing ta, which is the timing at which the moisture content AW reaches the determined moisture content AWth. When the reference timing tb is a time before the arrival timing ta by a predetermined grace time TMa, the CPU 91 determines that the water content AW is equal to or greater than the determined water content AWth when the reference timing tb is chronologically earlier than the current time. It is determined that On the other hand, if the reference timing tb is later than the current time in chronological order, the CPU 91 determines that the moisture content AW does not exceed the determination moisture content AWth.

Returning to FIG. 4, in step S19, the CPU 91 obtains the generator temperature TPg, which is the temperature of the generator 80. For example, the CPU 91 obtains a temperature corresponding to a detection value of a sensor that detects the temperature of the generator 80 as the generator temperature TPg.

In the next step S21, the CPU 91 determines whether the generator temperature TPg is equal to or higher than the determination generator temperature TPgth. When the generator temperature TPg becomes too high, it is preferable to limit the power generation of the generator 80 in order to protect the generator 80. A determination generator temperature TPgth is set as a criterion for determining whether or not protection of the generator 80 is necessary. When the CPU 91 determines that the generator temperature TPg is equal to or higher than the determined generator temperature TPgth (S21: YES), the process proceeds to step S23. On the other hand, if the CPU 91 determines that the generator temperature TPg does not exceed the determined generator temperature TPgth (S21: NO), the process proceeds to step S25.

Referring to FIG. 3, the determination process in step S21 will be described in detail. The CPU 91 monitors changes in the generator temperature TPg as shown by the solid line in FIG. Then, the CPU 91 creates an approximate expression representing a change in the amount of increase in the generator temperature TPg, as shown by a two-dot chain line in FIG. 3, based on the change in the generator temperature TPg. Subsequently, the CPU 91 uses the approximate expression to estimate the arrival timing ta, which is the timing at which the generator temperature TPg reaches the determined generator temperature TPgth. When the reference timing tb is set to a time before the arrival timing ta by a predetermined grace time TMa, the CPU 91 determines that the generator temperature TPg is the determined generator temperature when the reference timing tb is chronologically earlier than the current time. It is determined that the value is equal to or higher than TPgth. On the other hand, if the reference timing tb is later than the current time in chronological order, the CPU 91 determines that the generator temperature TPg does not exceed the determination generator temperature TPgth.

Returning to FIG. 4, in step S23, the CPU 91 sets the abnormality determination flag FLG to ON. That is, when the CPU 91 determines that the hydrogen concentration CH is equal to or higher than the determined hydrogen concentration CHth, the CPU 91 determines that a predetermined abnormality has occurred in the internal combustion engine 40. Further, when the CPU 91 determines that the water content AW is equal to or greater than the determined water content AWth, the CPU 91 determines that a predetermined abnormality has occurred in the internal combustion engine 40. When the CPU 91 determines that a predetermined abnormality has occurred in the internal combustion engine 40, it sets the abnormality determination flag FLG to ON. Further, when determining that the generator temperature TPg is equal to or higher than the determined generator temperature TPgth, the CPU 91 determines that it is necessary to limit the power generation of the generator 80. When the CPU 91 determines that it is necessary to limit the power generation of the generator 80, it sets the abnormality determination flag FLG to ON. Thereafter, the CPU 91 temporarily ends the abnormality determination process M15.

In step S25, the CPU 91 sets the abnormality determination flag FLG to OFF. That is, when the CPU 91 determines that no predetermined abnormality has occurred in the internal combustion engine 40 and determines that there is no need to limit the power generation of the generator 80, Set the abnormality determination flag FLG to OFF. Thereafter, the CPU 91 temporarily ends the abnormality determination process M15.

<Difference determination process>
As shown in FIG. 2, the CPU 91 obtains the actual output PE, which is the output of the internal combustion engine 40, in the deviation determination process M16. Then, the CPU 91 determines whether or not there is a difference between the actual output PE and the required output PER by comparing the actual output PE and the required output PER. For example, if the magnitude of the difference between the actual output PE and the required output PER is greater than or equal to a predetermined difference, the CPU 91 determines that there is a difference between the actual output PE and the required output PER. A value that takes into account the calculation error of the actual output PE is set as the predetermined difference. Therefore, if the magnitude of the difference is less than the predetermined difference, the CPU 91 determines that there is no difference between the actual output PE and the required output PER.

<Adjustment process>
In adjustment processing M17, the CPU 91 adjusts the amount of hydrogen generated by the hydrogen generator 20, the output of the internal combustion engine 40, and the amount of power generated by the generator 80.

The adjustment process M17 will be described in detail with reference to FIG. The adjustment process M17 is repeatedly executed at every predetermined control cycle.
In step S40 of the adjustment process M17, the CPU 91 determines whether or not there is a difference between the actual output PE and the required output PER of the internal combustion engine 40, based on the execution result of the deviation determination process M16. If there is a difference between the actual output PE and the required output PER (S40: YES), the CPU 91 shifts the process to step S47. On the other hand, if there is no difference between the actual output PE and the requested output PER (S40: NO), the CPU 91 shifts the process to step S41.

In step S41, the CPU 91 determines whether the abnormality determination flag FLG is set to OFF. If the abnormality determination flag FLG is set to OFF (S41: YES), the CPU 91 shifts the process to step S43. On the other hand, if the abnormality determination flag FLG is set to ON (S41: NO), the CPU 91 shifts the process to step S45.

In step S43, the CPU 91 performs standard control. In the standard control, the CPU 91 makes the command output PEI, which is the command value of the output of the internal combustion engine 40, equal to the required output PER. When the required value of the amount of hydrogen generated by the hydrogen generator 20 is set as the required generation amount QOH, the CPU 91 sets a value according to the instruction output PEI as the required generation amount QOH. When the amount of hydrogen generated by the hydrogen generator 20 based on the required output PER is set as the standard generation amount BOH, the required generation amount QOH becomes equal to the standard generation amount BOH under standard control. Note that the amount of hydrogen generated by the hydrogen generator 20 correlates with the amount of hydrogen supplied to the internal combustion engine 40. Therefore, when the amount of hydrogen supplied to the internal combustion engine 40 based on the required output PER is taken as the standard supply amount, standard control is control that makes the amount of hydrogen supplied to the internal combustion engine 40 equal to the standard supply amount. I can do it.

Further, when the required value of the power generation amount of the generator 80 is set as the required power generation amount RPG, the CPU 91 sets a larger value as the required power generation amount QOH as the output of the internal combustion engine 40 is larger. Therefore, in the standard control, the CPU 91 sets a value corresponding to the required output PER as the required power generation amount RPG.

In the standard control, the CPU 91 controls the hydrogen generator 20 based on the required generation amount QOH. For example, the CPU 91 controls the operation of the supply pump 23 so that the smaller the required generation amount QOH, the smaller the amount of pure water supplied to the reactor 25. Further, the CPU 91 controls the operation of the internal combustion engine 40 based on the instruction output PEI. The CPU 91 controls the generator 80 based on the required power generation amount RPG. After performing the standard control in this way, the CPU 91 temporarily ends the adjustment process M17.

In step S45, the CPU 91 performs first protection control. In the first protection control, the CPU 91 sets a value smaller than the required output PER as the instruction output PEI. The CPU 91 sets a value corresponding to the instruction output PEI as the request generation amount QOH. That is, in the first protection control, a value smaller than the reference generation amount BOH is set as the required generation amount QOH. Therefore, it can be said that the first protection control is a control in which the amount of hydrogen supplied to the internal combustion engine 40 is made smaller than the reference amount of supply.

Further, the CPU 91 sets a larger value as the required generation amount QOH as the output of the internal combustion engine 40 becomes larger. Therefore, in the first protection control, the CPU 91 sets the required power generation amount RPG to a value smaller than the power generation amount according to the required output PER.

In the first protection control, the CPU 91 controls the hydrogen generator 20 based on the required generation amount QOH. When adjusting the amount of pure water supplied to the reactor 25 based on the required generation amount QOH as described above, the CPU 91 determines that the amount of purified water supplied to the reactor 25 is smaller than when performing standard control. The operation of the supply pump 23 is controlled so that the amount decreases. Further, the CPU 91 controls the operation of the internal combustion engine 40 based on the instruction output PEI. The CPU 91 controls the generator 80 based on the required power generation amount RPG. After performing the first protection control in this manner, the CPU 91 temporarily ends the adjustment process M17.

In step S47, the CPU 91 performs second protection control. In the second protection control, the CPU 91 changes the hydrogen supply amount to the internal combustion engine 40 with respect to the reference supply amount BSH in order to reduce the magnitude of the difference between the actual output PE and the required output PER of the internal combustion engine 40. Specifically, when the actual output PE is larger than the requested output PER, the CPU 91 sets a value smaller than the requested output PER as the instruction output PEI. The CPU 91 sets a value corresponding to the instruction output PEI as the request generation amount QOH. As a result, a value smaller than the reference generation amount BOH is set as the required generation amount QOH. On the other hand, if the actual output PE is smaller than the requested output PER, the CPU 91 sets a value larger than the requested output PER as the instruction output PEI. The CPU 91 sets a value corresponding to the instruction output PEI as the request generation amount QOH. As a result, a value larger than the reference generation amount BOH is set as the required generation amount QOH.

Furthermore, the CPU 91 sets a larger value as the required generation amount QOH as the output of the internal combustion engine 40, that is, the actual output PE becomes larger. In other words, in the second protection control, the CPU 91 sets a value different from the power generation amount according to the required output PER as the required power generation amount RPG.

In the second protection control, the CPU 91 controls the hydrogen generator 20 based on the required generation amount QOH. Further, the CPU 91 controls the operation of the internal combustion engine 40 based on the instruction output PEI. Further, the CPU 91 controls the generator 80 based on the required power generation amount RPG. After performing the second protection control in this manner, the CPU 91 temporarily ends the adjustment process M17.

<Action of this embodiment>
If it is determined that no predetermined abnormality has occurred in the internal combustion engine 40, the internal combustion engine 40 operates normally. In particular, when there is no difference between the actual output PE and the required output PER of the internal combustion engine 40, standard control is performed, and the drive device operates based on the required output PER. That is, in the hydrogen generator 20, the supply pump 23 operates so that the amount of hydrogen corresponding to the required output PER is generated in the reactor 25. At this time, hydrogen is generated in the reactor 25 in an amount approximately equal to the standard generation amount BOH. Hydrogen generated in the reactor 25 is supplied to the internal combustion engine 40 via the connecting passage 27 together with air. Then, in the combustion chamber 57 of the internal combustion engine 40, the air-fuel mixture supplied through the connection passage 27 is combusted, so that the actual output PE of the internal combustion engine 40 depends on the amount of hydrogen introduced into the combustion chamber 57. It becomes the size. In this case, the actual output PE of the internal combustion engine 40 is approximately equal to the required output PER.

The generator 80 generates electricity based on the actual output PE of the internal combustion engine 40. When standard control is implemented, the actual output PE of the internal combustion engine 40 is approximately equal to the required output PER. Therefore, the amount of power generated by the generator 80 corresponds to the required output PER. That is, the power generation of the generator 80 is not limited.

Note that even if it is determined that no predetermined abnormality has occurred in the internal combustion engine 40, if there is a difference between the actual output PE and the required output PER of the internal combustion engine 40, the 2 protection control is implemented. When the second protection control is being implemented, if the actual output PE is greater than the required output PER, the hydrogen generator 20 is configured to generate less hydrogen in the reactor 25 than when standard control is being implemented. Operate. In this embodiment, the amount of pure water supplied to the reactor 25 by the supply pump 23 is reduced. As a result, the amount of hydrogen generated in the reactor 25 becomes smaller than the reference amount BOH. Then, since the amount of hydrogen supplied to the internal combustion engine 40 becomes less than the above-mentioned reference supply amount BSH, the actual output PE of the internal combustion engine 40 becomes smaller, and as a result, the magnitude of the difference between the actual output PE and the required output PER decreases. becomes smaller.

On the other hand, when the actual output PE is smaller than the required output PER, the hydrogen generator 20 operates so that the amount of hydrogen generated in the reactor 25 is greater than when standard control is implemented. In this embodiment, the amount of pure water supplied to the reactor 25 by the supply pump 23 is increased. As a result, the amount of hydrogen generated in the reactor 25 becomes greater than the reference amount BOH. Then, since the amount of hydrogen supplied to the internal combustion engine 40 becomes larger than the above-mentioned standard supply amount BSH, the actual output PE of the internal combustion engine 40 increases, and as a result, the magnitude of the difference between the actual output PE and the required output PER increases. becomes smaller.

On the other hand, if it is determined that a predetermined abnormality has occurred in the internal combustion engine 40, the first protection control is implemented. Then, the actual output PE of the internal combustion engine 40 becomes smaller than the required output PER. That is, the hydrogen generator 20 operates so that the amount of hydrogen generated in the reactor 25 is smaller than when standard control is implemented. In this embodiment, the amount of pure water supplied to the reactor 25 by the supply pump 23 is reduced. As a result, the amount of hydrogen generated in the reactor 25 becomes smaller than the reference amount BOH. Then, the amount of hydrogen supplied to the internal combustion engine 40 becomes less than the reference supply amount BSH, so the actual output PE of the internal combustion engine 40 becomes smaller than the required output PER. In this way, when the actual output PE of the internal combustion engine 40 becomes smaller than the required output PER, the amount of power generated by the generator 80 becomes smaller than the amount of power generated according to the reference generation amount BOH. That is, power generation by the generator 80 is limited.

<Effects of this embodiment>
(1-1) In a situation where it is determined that no predetermined abnormality has occurred in the internal combustion engine 40, if there is a difference between the actual output PE and the required output PER of the internal combustion engine 40, the actual output The amount of hydrogen supplied to the internal combustion engine 40 is adjusted so as to reduce the magnitude of the difference between PE and required output PER. Thereby, it is possible to suppress a discrepancy between the amount of hydrogen consumed by the internal combustion engine 40 and the amount of hydrogen supplied to the internal combustion engine 40.

(1-2) When it is determined that a predetermined abnormality has occurred in the internal combustion engine 40, the amount of hydrogen supplied to the internal combustion engine 40 becomes less than the standard supply amount BSH, and the actual output PE of the internal combustion engine 40 becomes smaller than the required output PER. That is, even if the actual output PE of the internal combustion engine 40 decreases and the amount of hydrogen consumed by the internal combustion engine 40 decreases, the amount of hydrogen supplied to the internal combustion engine 40 is also decreased. Therefore, even if a predetermined abnormality occurs in the internal combustion engine 40 and the actual output PE of the internal combustion engine 40 decreases, the amount of hydrogen leaking into the crankcase 43 of the internal combustion engine 40 can be suppressed from increasing. Therefore, the power generation device 10 can suppress the hydrogen concentration in the crankcase 43 from increasing even if a predetermined abnormality occurs in the internal combustion engine 40 and the actual output PE of the internal combustion engine 40 decreases.

(1-3) In the present embodiment, even when power generation by the generator 80 is restricted, the first protection control is performed. When the first protection control is executed, the actual output PE of the internal combustion engine 40 becomes smaller than when the standard control is executed. Therefore, the power generation device 10 can suppress the actual output PE of the internal combustion engine 40 from becoming excessive with respect to the amount of power generated by the generator 80.

(1-4) Due to the control shifting from standard control to first protection control, even if the amount of pure water supplied to reactor 25 is reduced, the amount of hydrogen generated in reactor 25 may not decrease immediately. There is. During a period in which the amount of hydrogen generated by the reactor 25 does not decrease, the amount of hydrogen supplied to the internal combustion engine 40 is approximately equal to the reference supply amount BSH. In this case, in the internal combustion engine 40, the amount of hydrogen leaking from the combustion chamber 57 into the crankcase 43 does not decrease.

Therefore, in the present embodiment, the CPU 91 determines whether the hydrogen concentration CH becomes equal to or higher than the determined hydrogen concentration CHth based on the change in the hydrogen concentration CH in the crankcase 43. Therefore, the CPU 91 can shift the control from the standard control to the first protection control before the hydrogen concentration CH actually becomes equal to or higher than the determined hydrogen concentration CHth. Therefore, the time lag from when the hydrogen concentration CH actually reaches the determined hydrogen concentration CHth until the amount of hydrogen supplied to the internal combustion engine 40 actually starts to decrease can be shortened. Thereby, the effect of suppressing an increase in the hydrogen concentration within the crankcase 43 can be increased.

The CPU 91 determines, based on the change in the water content AW of the oil in the oil pan 45, whether the water content AW is equal to or greater than the determination water content AWth. Therefore, the CPU 91 can shift the control from the standard control to the first protection control before the water content AW actually becomes equal to or greater than the determined water content AWth. Therefore, the time lag from when the water content AW actually reaches the determined water content AWth until the amount of hydrogen supplied to the internal combustion engine 40 actually starts to decrease can be shortened. Thereby, the effect of suppressing an increase in the hydrogen concentration within the crankcase 43 can be increased.

The CPU 91 determines whether or not the generator temperature TPg becomes equal to or higher than the determination generator temperature TPgth based on the change in the generator temperature TPg. Therefore, the CPU 91 can shift the control from the standard control to the first protection control before the generator temperature TPg actually becomes equal to or higher than the determined generator temperature TPgth. Therefore, the time lag from when the generator temperature TPg actually reaches the determined generator temperature TPgth until the amount of hydrogen supplied to the internal combustion engine 40 actually starts to decrease can be shortened. Thereby, the effect of suppressing an increase in the hydrogen concentration within the crankcase 43 can be increased.

(1-5) The amount of hydrogen supplied to the internal combustion engine 40 can also be reduced by reducing the opening degree of the regulating valve 61. However, unless the amount of hydrogen generated in the reactor 25 is reduced, the amount of hydrogen remaining in the reactor 25 may become excessive. In this regard, in this embodiment, when the first protection control is performed, the amount of hydrogen generated in the reactor 25 is reduced compared to when the standard control is performed. Therefore, the power generation device 10 can suppress the amount of hydrogen remaining in the reactor 25 from becoming excessive by implementing the first protection control.

(Second embodiment)
A second embodiment of the drive device and power generation device will be described according to FIG. 6. Note that in the second embodiment, some of the processing contents of the control device are different from the first embodiment. In the following description, parts that are different from the first embodiment will be mainly explained, and the same reference numerals will be given to the same member configurations as in the first embodiment, and redundant explanation will be omitted.

As shown in FIG. 6, the CPU 91 executes a requested supply amount setting process M21, a reference output setting process M23, an abnormality determination process M15, a deviation determination process M16A, and an adjustment process M27.

In the required supply amount setting process M21, the CPU 91 sets the required supply amount RSH, which is the required value for the amount of hydrogen supplied to the internal combustion engine 40. For example, the CPU 91 sets a predetermined amount as the required supply amount RSH.

In the reference output setting process M23, the CPU 91 sets the output of the internal combustion engine 40 according to the requested supply amount RSH as the reference output PEB.
In the deviation determination process M16A, the CPU 91 determines whether a deviation has occurred between the actual output PE of the internal combustion engine 40 and the required output PER. In the deviation determination process M16A, the CPU 91 obtains the reference output PEB as the required output PER. Then, the CPU 91 performs the determination in the same manner as the deviation determination process M16 in the first embodiment.

In adjustment processing M27, the CPU 91 adjusts the amount of hydrogen generated by the hydrogen generator 20, the output of the internal combustion engine 40, and the amount of power generated by the generator 80. Specifically, when the CPU 91 determines that the abnormality determination flag FLG is set to OFF and that there is no difference between the actual output PE and the required output PER, the CPU 91 performs the standard control described above. Even if the abnormality determination flag FLG is set to OFF, the CPU 91 implements the second protection control if it determines that there is a difference between the actual output PE and the required output PER. On the other hand, the CPU 91 performs the first protection control when the abnormality determination flag FLG is set to on.

The first protection control of this embodiment will be explained. That is, in the first protection control, the CPU 91 operates the supply pump 23 so that the amount of hydrogen generated in the reactor 25 becomes less than the required supply amount RSH. Further, the CPU 91 sets the output of the internal combustion engine 40 according to the amount of hydrogen generated in the reactor 25 as the command output PEI. Then, the CPU 91 controls the operation of the internal combustion engine 40 based on the instruction output PEI. Further, the CPU 91 sets the power generation amount according to the instruction output PEI as the required power generation amount RPG. Then, the CPU 91 controls the generator 80 based on the required power generation amount RPG. That is, the CPU 91 makes the instruction output PEI smaller when executing the first protection control than when executing the standard control. Furthermore, when executing the first protection control, the CPU 91 makes the required power generation amount RPG smaller than when executing the standard control.

The second protection control of this embodiment will be explained. That is, in the second protection control, when the actual output PE is larger than the required output PER, the CPU 91 operates the supply pump 23 so that the amount of hydrogen generated in the reactor 25 becomes less than the required supply amount RSH. . Further, the CPU 91 sets the output of the internal combustion engine 40 according to the amount of hydrogen generated in the reactor 25 as the command output PEI. Then, the CPU 91 controls the operation of the internal combustion engine 40 based on the instruction output PEI. On the other hand, when the actual output PE is smaller than the required output PER, the CPU 91 operates the supply pump 23 so that the amount of hydrogen generated in the reactor 25 becomes greater than the required supply amount RSH. Further, the CPU 91 sets the output of the internal combustion engine 40 according to the amount of hydrogen generated in the reactor 25 as the command output PEI. Then, the CPU 91 controls the operation of the internal combustion engine 40 based on the instruction output PEI.

<Actions and effects of this embodiment>
In this embodiment, in addition to the effects (1-1) and (1-3) to (1-5) of the first embodiment, the following effects can be obtained.

(2-1) When it is determined that a predetermined abnormality has occurred in the internal combustion engine 40, the amount of hydrogen generated in the reactor 25 becomes less than the required supply amount RSH, and the actual output PE of the internal combustion engine 40 It becomes smaller than the reference output PEB. That is, even if the actual output PE of the internal combustion engine 40 decreases and the amount of hydrogen consumed by the internal combustion engine 40 decreases, the amount of hydrogen supplied to the internal combustion engine 40 is also decreased. Therefore, even if a predetermined abnormality occurs in the internal combustion engine 40 and the actual output PE of the internal combustion engine 40 decreases, the amount of hydrogen leaking into the crankcase 43 of the internal combustion engine 40 can be suppressed from increasing. Therefore, the power generation device 10 can suppress the hydrogen concentration in the crankcase 43 from increasing even if a predetermined abnormality occurs in the internal combustion engine 40 and the actual output PE of the internal combustion engine 40 decreases.

(Example of change)
The above embodiments can be modified and implemented as follows. The plurality of embodiments described above and the following modified examples can be implemented in combination with each other within a technically consistent range.

- Even if the power generation of the generator 80 is restricted, the CPU 91 may perform the standard control or the second protection control as long as no predetermined abnormality has occurred in the internal combustion engine 40.
- In the first protection control and the second protection control, if the amount of hydrogen generated in the reactor 25 can be reduced, it is not necessary to reduce the amount of pure water supplied to the reactor 25. For example, the CPU 91 may reduce the amount of hydrogen generated in the reactor 25 by lowering the voltage applied to the reactor 25 in the first protection control and the second protection control. Further, when increasing the amount of hydrogen generated in the reactor 25 in the second protection control, the CPU 91 may increase the amount of hydrogen generated in the reactor 25 by increasing the voltage applied to the reactor 25. .

- In the first protection control and the second protection control, as long as the amount of hydrogen supplied to the internal combustion engine 40 can be reduced, it is not necessary to reduce the amount of hydrogen generated in the reactor 25. For example, in the first protection control and the second protection control, the CPU 91 may reduce the amount of hydrogen supplied to the internal combustion engine 40 by reducing the opening degree of the adjustment valve 61 installed in the connection passage 27. . Further, when increasing the amount of hydrogen generated in the reactor 25 in the second protection control, the CPU 91 may increase the amount of hydrogen supplied to the internal combustion engine 40 by increasing the opening degree of the adjustment valve 61. .

- In the first protection control and the second protection control, hydrogen is supplied to the internal combustion engine 40 by reducing the amount of hydrogen generated in the reactor 25 and reducing the opening degree of the adjustment valve 61. The supply amount may be decreased. In addition, in the second protection control, the amount of hydrogen supplied to the internal combustion engine 40 is increased by increasing the amount of hydrogen generated in the reactor 25 and increasing the opening degree of the regulating valve 61. You may also do so.

- In step S13 of the abnormality determination process M15, when the hydrogen concentration CH becomes equal to or higher than the determined hydrogen concentration CHth, it may be determined that the hydrogen concentration CH becomes equal to or higher than the determined hydrogen concentration CHth. In this case, if the hydrogen concentration CH is less than the determined hydrogen concentration CHth, it may be determined that the hydrogen concentration CH does not exceed the determined hydrogen concentration CHth.

- In step S17 of the abnormality determination process M15, when the water content AW of the oil becomes the judgment water content AWth or more, it may be determined that the water content AW becomes the judgment water content AWth or more. In this case, if the moisture content AW is less than the determination moisture content AWth, it may be determined that the moisture content AW does not exceed the determination moisture content AWth.

- In step S21 of the abnormality determination process M15, when the generator temperature TPg becomes equal to or higher than the determined generator temperature TPgth, it may be determined that the generator temperature TPg becomes equal to or higher than the determined generator temperature TPgth. In this case, if the generator temperature TPg is less than the determined generator temperature TPgth, it may be determined that the generator temperature TPg does not exceed the determined generator temperature TPgth.

- The hydrogen concentration CH acquired in step S11 of the abnormality determination process M15 does not have to be a value based on the detected value of the hydrogen concentration sensor 72. For example, the CPU 91 may obtain an estimated value of the hydrogen concentration based on the operating state of the internal combustion engine 40 as the hydrogen concentration CH. At this time, the CPU 91 may estimate the hydrogen concentration using a learned model subjected to machine learning. The learned model is preferably a model that inputs state variables indicating the operating state of the internal combustion engine 40, such as engine speed NE and engine load factor KL, and outputs a variable corresponding to the hydrogen concentration.

- The water content AW of the oil acquired in step S15 of the abnormality determination process M15 does not have to be a value based on the detected value of the water content sensor 73. For example, the CPU 91 may obtain an estimated value of the water content of the oil based on the operating state of the internal combustion engine 40 as the water content AW. At this time, the CPU 91 may estimate the moisture content using a learned model subjected to machine learning. The learned model is preferably a model that inputs state variables indicating the operating state of the internal combustion engine 40, such as engine speed NE and engine load factor KL, and outputs a variable corresponding to the water content of the oil.

- The generator temperature TPg acquired in step S19 of the abnormality determination process M15 may be a value based on the detected value of the temperature sensor, or an estimated value of the temperature of the generator 80 based on the operating state of the generator 80. It may be. When estimating the temperature of the generator 80, the CPU 91 may estimate the temperature of the generator using a learned model subjected to machine learning. The learned model may be a model that takes as input a state variable indicating the operating state of the generator 80, such as the rotation speed of the generator 80, and outputs a variable corresponding to the temperature of the generator 80.

- When the power generated by the generator 80 is stored in the battery, in the abnormality determination process M15, if it is determined that the amount of stored power in the battery is equal to or greater than the determined amount of stored power, it is necessary to limit the power generation of the generator 80. It may be determined that there is.

- The CPU 91 may determine whether a predetermined abnormality has occurred in the internal combustion engine 40 using a learned model subjected to machine learning. For example, the trained model may be a model that inputs state variables indicating the operating state of the internal combustion engine 40, such as engine speed NE and engine load factor KL, and outputs a value indicating the probability that a predetermined abnormality has occurred. It's good to do that. In this case, the CPU 91 determines that a predetermined abnormality has occurred when the probability indicated by the value output from the trained model is greater than or equal to the judgment value, and determines that a predetermined abnormality has occurred when the probability is less than the judgment value. It is determined that this has not occurred.

- The reactor may be a device that generates hydrogen by a method other than solid polymer water electrolysis, as long as it can generate hydrogen. For example, the reactor may be a device that generates hydrogen by alkaline water electrolysis. In this case, the reactor uses a KOH container to generate hydrogen when a KOH solution is fed as feedstock.

- The control device 90 is not limited to one that includes a CPU and a ROM and executes software processing. That is, the control device 90 may have any of the configurations (a) to (c) below.
(a) The control device 90 includes one or more processors that execute various processes according to computer programs. The processor includes a CPU and memory such as RAM and ROM. The memory stores program codes or instructions configured to cause the CPU to perform processes. Memory, or computer-readable media, includes any available media that can be accessed by a general purpose or special purpose computer.

(b) The control device 90 includes one or more dedicated hardware circuits that execute various processes. Dedicated hardware circuits may include, for example, application specific integrated circuits, ie ASICs or FPGAs. Note that ASIC is an abbreviation for "Application Specific Integrated Circuit," and FPGA is an abbreviation for "Field Programmable Gate Array."

(c) The control device 90 includes a processor that executes some of the various processes according to a computer program, and a dedicated hardware circuit that executes the remaining processes of the various processes.

(technical thought)
Next, technical ideas that can be understood from the above-mentioned plurality of embodiments and modified examples will be described as additional notes.

(Additional Note 1) A reactor that generates hydrogen,
an internal combustion engine that uses hydrogen generated by the reactor as fuel;
A control device that controls the output of the internal combustion engine by adjusting the amount of hydrogen supplied to the internal combustion engine based on a required output that is a required value for the output of the internal combustion engine,
When the amount of hydrogen supplied to the internal combustion engine according to the required output is set as the standard supply amount,
When a difference occurs between the output of the internal combustion engine and the required output, the control device controls hydrogen supply to the internal combustion engine in order to reduce the magnitude of the difference between the output of the internal combustion engine and the required output. A drive device that changes the supply amount of the fuel with respect to the reference supply amount.

(Additional Note 2) A connection passage for supplying hydrogen generated in the reactor to the internal combustion engine, and an adjustment valve provided in the connection passage, and the opening of the adjustment valve can be adjusted to The amount of hydrogen supplied to the internal combustion engine is changing.
The drive device according to supplementary note 1, wherein the control device changes the amount of hydrogen supplied to the internal combustion engine by adjusting the opening degree of the adjustment valve.

(Supplementary Note 3) The drive device according to Supplementary Note 1 or 2, wherein the control device adjusts the amount of hydrogen supplied to the internal combustion engine by adjusting the amount of hydrogen produced in the reactor.
(Supplementary Note 4) The control device is configured to reduce the amount of hydrogen supplied to the internal combustion engine from the reference supply amount when a predetermined abnormality occurs in the internal combustion engine. The drive device according to any one of these.

(Additional Note 5) A reactor that generates hydrogen,
an internal combustion engine that uses hydrogen generated by the reactor as fuel;
A control device that controls the output of the internal combustion engine so that the output of the internal combustion engine is based on the amount of hydrogen supplied to the internal combustion engine,
The control device is a drive device that reduces the amount of hydrogen supplied to the internal combustion engine when a predetermined abnormality occurs in the internal combustion engine.

(Supplementary Note 6) The control device determines that the predetermined abnormality has occurred in the internal combustion engine when determining that the hydrogen concentration in the crankcase of the internal combustion engine is equal to or higher than the concentration determination value. Or the drive device according to appendix 5.

(Supplementary note 7) The control device determines that the predetermined abnormality has occurred in the internal combustion engine when determining that the moisture content of the oil circulating in the internal combustion engine is equal to or greater than a moisture content determination value. The drive device according to any one of Items 4 to 6.

(Additional Note 8) A connection passage for supplying hydrogen generated in the reactor to the internal combustion engine, and an adjustment valve provided in the connection passage, and the opening of the adjustment valve can be adjusted to The amount of hydrogen supplied to the internal combustion engine is changing.
Supplementary notes 4 to 4, wherein the control device reduces the amount of hydrogen supplied to the internal combustion engine by adjusting the opening degree of the adjustment valve when the predetermined abnormality occurs in the internal combustion engine. 7. The drive device according to any one of 7.

(Supplementary note 9) When the predetermined abnormality occurs in the internal combustion engine, the control device reduces the amount of hydrogen produced in the reactor to reduce the amount of hydrogen supplied to the internal combustion engine. The drive device according to any one of Supplementary Notes 4 to 8, wherein the drive device is reduced in number.

(Additional Note 10) Comprising the drive device according to any one of Additional Notes 1 to 4, and a generator that generates electricity based on the output of the internal combustion engine,
The control device is configured to reduce the amount of hydrogen supplied to the internal combustion engine to be less than the reference amount of supply when the power generation of the generator is restricted.

(Additional Note 11) Comprising the drive device according to any one of Additional Notes 5 to 9, and a generator that generates electricity based on the output of the internal combustion engine,
A power generating device, wherein the control device reduces the amount of hydrogen supplied to the internal combustion engine when power generation by the power generator is restricted.

10... Generator 25... Reactor 27... Connection passage 40... Internal combustion engine 43... Crank case 61... Regulating valve 80... Generator 90... Control device

Claims (11)

a reactor that produces hydrogen;
an internal combustion engine that uses hydrogen generated by the reactor as fuel;
A control device that controls the output of the internal combustion engine by adjusting the amount of hydrogen supplied to the internal combustion engine based on a required output that is a required value for the output of the internal combustion engine,
When the amount of hydrogen supplied to the internal combustion engine according to the required output is set as the standard supply amount,
When a difference occurs between the output of the internal combustion engine and the required output, the control device controls hydrogen supply to the internal combustion engine in order to reduce the magnitude of the difference between the output of the internal combustion engine and the required output. A drive device that changes the supply amount of the fuel to the reference supply amount. A connection passage for supplying hydrogen generated in the reactor to the internal combustion engine, and an adjustment valve provided in the connection passage, and by adjusting the opening degree of the adjustment valve, the hydrogen is supplied to the internal combustion engine. The amount of hydrogen supplied is changing,
The drive device according to claim 1, wherein the control device changes the amount of hydrogen supplied to the internal combustion engine by adjusting the opening degree of the adjustment valve. The drive device according to claim 1, wherein the control device adjusts the amount of hydrogen supplied to the internal combustion engine by adjusting the amount of hydrogen produced in the reactor. The drive device according to claim 1, wherein the control device reduces the amount of hydrogen supplied to the internal combustion engine from the reference amount of supply when a predetermined abnormality occurs in the internal combustion engine. a reactor that produces hydrogen;
an internal combustion engine that uses hydrogen generated by the reactor as fuel;
A control device that controls the output of the internal combustion engine so that the output of the internal combustion engine is based on the amount of hydrogen supplied to the internal combustion engine,
The control device reduces the amount of hydrogen supplied to the internal combustion engine when a predetermined abnormality occurs in the internal combustion engine. The control device determines that the predetermined abnormality has occurred in the internal combustion engine when determining that the hydrogen concentration in the crankcase of the internal combustion engine is equal to or higher than a concentration determination value. The drive device described in . The control device determines that the predetermined abnormality has occurred in the internal combustion engine when determining that the moisture content of the oil circulating in the internal combustion engine is equal to or greater than a moisture content determination value. 5. The drive device according to 5. A connection passage for supplying hydrogen generated in the reactor to the internal combustion engine, and an adjustment valve provided in the connection passage, and by adjusting the opening degree of the adjustment valve, the hydrogen is supplied to the internal combustion engine. The amount of hydrogen supplied is changing,
The control device reduces the amount of hydrogen supplied to the internal combustion engine by adjusting the opening degree of the adjustment valve when the predetermined abnormality occurs in the internal combustion engine. The drive device according to item 5. The control device reduces the amount of hydrogen supplied to the internal combustion engine by reducing the amount of hydrogen produced in the reactor when the predetermined abnormality occurs in the internal combustion engine. The drive device according to claim 4 or claim 5. comprising the drive device according to claim 1 and a generator that generates electricity based on the output of the internal combustion engine,
The control device is configured to reduce the amount of hydrogen supplied to the internal combustion engine to be less than the reference amount of supply when the power generation of the generator is restricted. comprising the drive device according to claim 5 and a generator that generates electricity based on the output of the internal combustion engine,
The control device reduces the amount of hydrogen supplied to the internal combustion engine when the power generation of the generator is limited.

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