JP2021191953A - Fuel consumption acquisition device, fuel consumption calculation method and engine-driven power generation device - Google Patents

Abstract

To provide a fuel consumption acquisition device enabling reduction of data measurement time and data capacity.SOLUTION: A fuel consumption acquisition device includes: a detection section that includes output value detection means for detecting and acquiring a current output value of an output section of an engine-driven power generation device and acquires a current detection value; a storage section including first storage means for storing power generator efficiency value relation data indicating a relation of a power generator efficiency value to a power generator output value of a power generator measured beforehand, second storage means for storing fuel consumption relation data indicating a relation of fuel consumption to an engine shaft output value and an engine speed value of an engine, which are measured beforehand, and third storage means for storing a power generator coefficient; and a calculation section including engine shaft output value calculation means for calculating a current engine shaft output value of the engine and fuel consumption calculation means for calculating fuel consumption relative to a current detection value of the engine-driven power generation device.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fuel consumption acquisition device, a fuel consumption calculation method, and an engine-driven power generation device.

Conventionally, the relationship between the output power of an engine-driven power generation device that depends on the load and the fuel consumption with respect to the power factor is measured in advance and stored in the storage unit, and the fuel consumption amount with respect to the output power and the power ratio measured during operation is read from the storage unit. There is a technique that can calculate the fuel consumption at low cost without installing a fuel flow meter in the fuel system (see, for example, Patent Document 1).

In addition, the portable engine drive power generation device includes a main power output unit that outputs three-phase power and an auxiliary power output unit that outputs single-phase power drawn from at least one phase of the three-phase output line. be.

In such a portable engine drive power generation device, in outdoor work or the like, the work may be performed by using both the main power source and the auxiliary power source at the same time (see, for example, Patent Document 2).

However, in the above-mentioned Patent Document 1, it is necessary to measure the power-fuel consumption characteristic depending on the load in advance for each predetermined engine-driven power generation device to be measured.

Therefore, it is necessary to re-acquire new data just by changing the combination of the engine and the generator of the engine-driven power generator, and if either the engine or the generator is changed in the combination, the data measured in the past can be reused. It cannot be done, and it takes a lot of time to measure the data of the new combination.

Further, in an engine drive power generation device having a main power supply and an auxiliary power supply as in Patent Document 2, when the method as in Patent Document 1 is applied, the output conditions when the main power supply supplies power and the auxiliary power supply becomes electric power. It is necessary to measure the power-fuel consumption characteristics in advance for the number of combinations with the output conditions when supplying the power.

As described above, in the prior art, there is a problem that a large amount of time is required to measure the data and the storage capacity of the storage unit for storing the data is also large.

Japanese Unexamined Patent Publication No. 2019-108845 Jikkenhei 05-009136 Gazette

Therefore, in view of the drawbacks of the prior art, the present invention can calculate the fuel consumption even for an engine-driven power generation device equipped with both a main power source and an auxiliary power source, thereby reducing the data measurement time and the data capacity. It is an object of the present invention to provide a fuel consumption acquisition device capable of capable.

The fuel consumption acquisition device according to the embodiment according to one aspect of the present invention is
A fuel consumption acquisition device applied to an engine-driven power generation device including an engine, a generator driven by the engine, and a fuel tank for storing fuel supplied to the engine.
A detection unit that acquires the current detection value including an output value detection means that detects and acquires the current output value of the output unit of the engine drive power generation device, and a detection unit.
A first storage means for storing generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator, the engine shaft output value measured in advance of the engine, and the engine rotation value. A storage unit including a second storage means for storing fuel consumption-related data indicating the relationship of the fuel consumption with respect to the generator and a third storage means for storing the generator constant.
An engine shaft output value calculation means for calculating the current engine shaft output value of the engine, and a calculation unit including a fuel consumption calculation means for calculating the fuel consumption amount with respect to the current detection value of the engine drive power generation device. Prepare,
The engine shaft output value calculation means is
The first is based on at least one of the current detected value and the current output calculated value calculated based on the current detected value and the generator constant stored in the third storage means. With reference to the generator efficiency value-related data stored in the storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generator is read out, and the current detected value and the current output calculated value are read. The current engine shaft output value is calculated based on the current active power value contained in at least one of them and the read-out generator efficiency value.
The fuel consumption calculation means is
The fuel consumption stored in the second storage means based on the current engine shaft output value and the current engine rotation value included in at least one of the current detected value and the current output calculated value. It is characterized in that the fuel consumption amount with respect to the current detection value of the engine-driven power generation device is calculated with reference to the quantity-related data.

In the fuel consumption acquisition device,
The detection unit further includes an operating condition detecting means for detecting an operating condition determination value for determining the current operating condition of the engine-driven power generation device based on the output of the generator.
A plurality of the generator efficiency value-related data stored in the first storage means are obtained for the operating conditions expected to be used in the engine drive power generation device.
The engine shaft output value calculation means is
Further including a relational data selection means for selecting the generator efficiency value relational data to be used for the calculation based on the operating condition determination value.
It is characterized by that.

In the fuel consumption acquisition device,
The engine drive power generation device is
The main power output section that outputs power from the main power output line,
It is provided with an auxiliary power supply output unit that outputs power drawn from at least one phase of the main power supply output line.
The detector is
Further including a usage state determination value detecting means for detecting a usage state determination value for determining the current usage state of the main power output unit and the auxiliary power output unit of the engine drive power generation device.
The output value detecting means is
The current output value of the main power supply output unit of the engine drive power generation device and the current output value of the auxiliary power supply output unit are detected as the current detection values.
The generator efficiency value-related data stored in the first storage means of the storage unit includes generator main power efficiency value-related data showing the relationship between the generator efficiency value and the generator main power output value, and the generator. Includes generator auxiliary power efficiency value related data showing the relationship between the generator efficiency value and the auxiliary power output value.
The engine shaft output value calculation means is
A usage state determination means for determining the usage state of the main power supply output unit and the auxiliary power supply output unit of the engine drive power generation device is further provided based on the usage state determination value detected by the usage state determination value detecting means.
It is characterized in that the fuel consumption of the engine-driven power generation device with respect to the current detection value is calculated based on the generator efficiency value-related data based on the judgment result of the usage state determination means and the current detection value. do.

In the fuel consumption acquisition device,
The engine shaft output value calculation means is
When the usage state determination means determines that only the main power output unit is in use,
Based on at least one of the current detected value and the current output calculated value.
With reference to the generator main power source efficiency value-related data stored in the first storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generation device is read out.
Calculate the current main power engine shaft output value based on the current main power active power value included in at least one of the current detected value and the current output calculated value and the read-out generator efficiency value. However, it is characterized by being used as the current engine shaft output value.

In the fuel consumption acquisition device,
The engine shaft output value calculation means is
When it is determined that the usage state determination means is using only the auxiliary power supply output unit,
Based on at least one of the current detected value and the current output calculated value.
With reference to the generator auxiliary power source efficiency value-related data stored in the first storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generation device is read out.
Calculate the current auxiliary power engine shaft output value based on the current auxiliary power active power value included in at least one of the current detected value and the current output calculated value and the read-out generator efficiency value. However, it is characterized by being used as the current engine shaft output value.

In the fuel consumption acquisition device,
The engine shaft output value calculation means is
When it is determined that the usage state determination means is using the main power output unit and the auxiliary power output unit at the same time,
The auxiliary power supply active power value and the auxiliary power supply additional loss value included in at least one of the current detected value and the current output calculated value are calculated by the same method as when only the main power supply output unit is in use. It is characterized in that the sum with the main power source engine shaft output value is used as the current engine shaft output value.

In the fuel consumption acquisition device,
The detector is
Further equipped with a fuel level detecting means for detecting the current fuel level,
The calculation unit
The current operable time of the engine-driven power generation device is calculated based on the current remaining fuel value detected by the remaining fuel value detecting means and the current fuel consumption amount calculated by the fuel consumption amount calculating means. It is characterized by further including an operable time calculation means.

In the fuel consumption acquisition device,
It is characterized by further including a display unit including a calculation result display means for displaying the calculation result by the calculation unit.

The fuel consumption calculation method according to the embodiment according to one aspect of the present invention is
A fuel consumption acquisition device applied to an engine-driven power generation device including an engine, a generator driven by the engine, and a fuel tank for storing fuel to be supplied to the engine, wherein the engine-driven power generation is performed. The detector that acquires the current detection value including the output value detection means that detects and acquires the current output value of the output unit of the device, and the generator efficiency value with respect to the pre-measured generator output value of the generator. The first storage means for storing the generator efficiency value relation data showing the relationship, and the second storage means for storing the fuel consumption relation data showing the relationship between the engine shaft output value measured in advance of the engine and the fuel consumption amount with respect to the engine rotation value. A storage unit including a storage means and a third storage means for storing the generator constant, an engine shaft output value calculation means for calculating the current engine shaft output value of the engine, and the current current engine drive power generation device. It is a fuel consumption calculation method by a fuel consumption acquisition device equipped with a calculation unit including a fuel consumption calculation means for calculating fuel consumption with respect to a detected value.
The current output calculated value calculated by the engine shaft output value calculating means based on the current detected value and the current detected value and the generator constant stored in the third storage means. Based on at least one of them, the generator efficiency value with respect to the current detection value of the engine-driven power generation device is read out with reference to the generator efficiency value-related data stored in the first storage means, and the current detection is performed. The current engine shaft output value is calculated based on the current active power value included in at least one of the value and the current output calculated value and the read-out generator efficiency value.
The second storage means by the fuel consumption calculation means based on the current engine shaft output value and the current engine rotation value included in at least one of the current detected value and the current output calculated value. It is characterized in that the fuel consumption amount with respect to the current detection value of the engine-driven power generation device is calculated with reference to the fuel consumption amount-related data stored in.

The engine-driven power generation device according to the embodiment according to one aspect of the present invention is
An engine-driven power generator that supplies power to the load.
With the engine
The generator driven by the engine and
A fuel tank that stores the fuel supplied to the engine, and
A fuel consumption acquisition device for acquiring the fuel consumption of the engine-driven power generation device is provided.
The fuel consumption acquisition device is
A detection unit that acquires the current detection value including an output value detection means that detects and acquires the current output value of the output unit of the engine drive power generation device, and a detection unit.
A first storage means for storing generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator, the engine shaft output value measured in advance of the engine, and the engine rotation value. A storage unit including a second storage means for storing fuel consumption-related data indicating the relationship of the fuel consumption with respect to the generator and a third storage means for storing the generator constant.
An engine shaft output value calculation means for calculating the current engine shaft output value of the engine, and a calculation unit including a fuel consumption calculation means for calculating the fuel consumption amount with respect to the current detection value of the engine drive power generation device. Prepare,
The engine shaft output value calculation means is
The first is based on at least one of the current detected value and the current output calculated value calculated based on the current detected value and the generator constant stored in the third storage means. With reference to the generator efficiency value-related data stored in the storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generator is read out, and the current detected value and the current output calculated value are read. The current engine shaft output value is calculated based on the current active power value contained in at least one of them and the read-out generator efficiency value.
The fuel consumption calculation means is
The fuel consumption stored in the second storage means based on the current engine shaft output value and the current engine rotation value included in at least one of the current detected value and the current output calculated value. It is characterized in that the fuel consumption amount with respect to the current detection value of the engine-driven power generation device is calculated with reference to the quantity-related data.

According to the fuel consumption amount acquisition device according to one aspect of the present invention, it is possible to save the measurement time and the storage capacity of the data used for calculating the fuel consumption amount.

FIG. 1 is a diagram showing an example of a system configuration including the engine drive power generation device 100 according to the first embodiment. FIG. 2A is a diagram showing an example of a calculation flow in the engine-driven power generation device 100 shown in FIG. FIG. 2B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 100 shown in FIG. 1. FIG. 2C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 100 shown in FIG. 1. FIG. 3 is a diagram showing an example of a system configuration including the engine drive power generation device 200 according to the second embodiment. FIG. 4A is a diagram showing an example of a flow of calculation in the engine drive power generation device 200 shown in FIG. FIG. 4B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 200 shown in FIG. FIG. 4C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 200 shown in FIG. FIG. 5 is a diagram showing an example of a system configuration including the engine drive power generation device 300 according to the third embodiment. FIG. 6A is a diagram showing an example of a calculation flow in the engine drive power generation device 300 shown in FIG. FIG. 6B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 300 shown in FIG. FIG. 6C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 300 shown in FIG. FIG. 7 is a diagram showing an example of a system configuration including the engine drive power generation device 400 according to the fourth embodiment. FIG. 8A is a diagram showing an example of a flow of calculation in the engine drive power generation device 400 shown in FIG. 7. FIG. 8B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 400 shown in FIG. 7. FIG. 8C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 400 shown in FIG. 7.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

First, with reference to the figure, an engine-driven power generation device to which the fuel consumption acquisition device according to the first embodiment is applied will be described.

FIG. 1 is a diagram showing an example of a system configuration including the engine drive power generation device 100 according to the first embodiment.

[Engine-driven power generator]
The engine drive power generation device 100 according to the first embodiment includes, for example, an engine E, a fuel tank T, a generator G, an output unit Y, and an electrical component unit 101, as shown in FIG.

[Fuel tank]
The fuel tank T stores the fuel to be supplied to the engine E.

[engine]
Further, the engine E is operated by being supplied with fuel from the fuel tank T to drive the generator G.

[Generator]
The generator G supplies the electric power generated by being driven by the engine E to the load L connected to the output unit Y.

The generator G is, for example, an AC generator or a DC generator that converts the shaft output output from the engine E into electric power. The output unit Y is an output terminal plate, a receptacle, or the like.

[Electrical Equipment Department]
Further, as shown in FIG. 1, for example, the electrical component unit 101 mounted on the engine drive power generation device 100 includes a control unit CNT, an operation unit OP, a display unit H, a storage unit M, and a detection unit D. , And a calculation unit X.

Of the components of the electrical component unit 101, at least the display unit H, the storage unit M, the detection unit D, and the calculation unit X are applied to the engine drive power generation device 100 to reduce the fuel consumption of the engine E. The fuel consumption acquisition device 102 to be acquired is configured.

[Control unit]
Further, the control unit CNT is adapted to control at least the operations of the engine E and the generator G.

[Operation unit]
Further, the operation unit OP is adapted to receive an operation input by the user regarding the operating conditions and the like of the engine drive power generation device 100. That is, the operating conditions and the like that are operated and input by the operation unit OP are set in the engine drive power generation device 100.

[Memory]
Further, the storage unit M includes, for example, as shown in FIG. 1, a first storage means M1, a second storage means M2, and a third storage means M3. As described above, in the example of FIG. 1, the storage unit M is defined to include a plurality of storage units M1 to M3, but the storage unit M has a single storage unit so as to have a similar function. It may be summarized in.

The first storage means M1 stores the generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator G.

The generator output value includes, for example, at least one of an output voltage value, an output current value, and a power factor value. Further, the generator efficiency value-related data may be any data that returns a unique output value for any number of arguments, for example, a look-up table having a dimension of the number of arguments, a function using approximation, or a graph. good.

Here, an example of the measurement flow of the generator efficiency value related data will be described.

For example, when the generator G is an AC generator, the output value is an output voltage value, an output current value, and a power factor value.

In this case, first, (1) a power supply source is connected to the generator G via a torque meter, and a load test device (power factor adjustable) is connected to the output line of the generator G. The power supply source generates power such as a motor and an engine.

Then, (2) the power factor value and the output voltage value are fixed, and the torque and the rotation speed of the power supply source with respect to the output current value of the generator G are measured by sequentially changing the ratio of the output current value. The measurement range of the output current value is from 0 to the rating, and the step size is a small width that seems to be sufficient considering the error in interpolation by a function using approximation.

Then, (3) the shaft output value of the power supply source is calculated from the torque and the rotation speed, the active power value is calculated from the current output current value, the set voltage value, and the set power factor value, and the active power value is output to the shaft. Divide by the value to get the generator efficiency value.

As a result, the generator efficiency value for an arbitrary output current value at the current set voltage value and set power factor value is obtained.

Then, (4) the set power factor value is sequentially changed, and the above (2) to (3) are executed.

Then, (5) the set voltage value is sequentially changed, and the above (2) to (4) are executed.

Then, (6) the measured data is shaped. For example, processing such as lookup table, graphing, approximation function, and interpolation by interpolation is executed.

This makes it possible to obtain a generator efficiency value for an arbitrary output voltage value, output current value, and power factor value.

On the other hand, when the generator G is a DC generator, the output value becomes an output voltage value and an output current value. In the case of this DC generator, since it is not necessary to classify the cases based on the power factor value, an arbitrary output voltage value and output current can be obtained by the same flow as that obtained by omitting the flow of (4) from the above flow. The generator efficiency value for the value can be obtained.

Further, the second storage means M2 of the storage unit M shown in FIG. 1 stores fuel consumption-related data indicating the relationship between the engine shaft output value measured in advance of the engine E and the fuel consumption amount with respect to the engine rotation value. It has become. The fuel consumption-related data may be any data that returns a unique output value for any number of arguments, and may be, for example, a look-up table having a dimension of the number of arguments, a function using approximation, or a graph. ..

Here, an example of a method for measuring the fuel consumption-related data will be described.

First, (1a) a load device is connected to the engine E via a torque meter, and a flow meter is connected to the fuel system of the engine E. The load device is a water power meter, an eddy current power meter, a motor, a generator, or the like, which generates anti-torque.

Then, (2a) the engine rotation value is fixed, and the fuel consumption with respect to the engine shaft output value is measured by sequentially changing the magnitude of the engine shaft output value.

As a result, it is possible to obtain the fuel consumption for any engine shaft power value at the currently set engine rotation value.

Then, (3a) the engine speed is sequentially changed, and the above (2a) is executed. Normally, the engine rotation value basically depends on the output frequency value of the generator G, so it is sufficient to measure only the amount that can be detected as an operating condition. Therefore, normally, the above (2a) is executed at an engine speed at which the generator G can output the commercial power frequency of 50 or 60 Hz.

Then, (4a) the measured data is shaped. For example, processing such as lookup table, graphing, approximation function, and interpolation by interpolation is executed.

As a result, it is possible to obtain the fuel consumption amount for an arbitrary engine rotation value and engine shaft power value.

Further, the third storage means M3 of the storage unit M shown in FIG. 1 is designed to store the generator constant.

The generator constant stored in the third storage means M3 is a value peculiar to the generator G, and is, for example, a rated voltage value, a rated current value, a winding resistance value, a wiring resistance value, or the like.

[Detection unit]
As shown in FIG. 1, the detection unit D includes, for example, an output value detecting means D1 and a fuel remaining amount value detecting means DZ. Although the detection unit D is defined as a component of the electrical component unit 101 in the example of FIG. 1, it may be arranged so as to accompany each configuration of the engine drive power generation device 100.

The output value detecting means D1 is composed of a plurality of sensors, and detects the current output value of the output unit Y of the engine drive power generation device 100 to acquire the current detected value.

The output value detecting means D1 is composed of a plurality of sensors, and each sensor detects the output value of the current engine drive power generation device 100.

Here, the output value of the engine-driven power generation device 100 to be detected is a value necessary for calculating the fuel consumption, for example, an output voltage value, an output current value, a power factor value, an engine rotation value, or these. Contains values that can be derived by arithmetic.

The mounting position of each sensor may be any place where the output value of the engine drive power generation device 100 can be detected, and may be provided, for example, on the generator output line.

Further, the fuel remaining amount detecting means DZ of the detection unit D is adapted to detect the current fuel remaining amount value of the engine drive power generation device 100.

The fuel remaining amount detecting means DZ is, for example, a fuel gauge that measures the fuel remaining amount value from the liquid level height in the tank provided in the fuel tank T, and includes, for example, a fuel sender.

[Calculation unit]
Further, the arithmetic unit X executes various arithmetic operations and outputs the obtained arithmetic results.

As shown in FIG. 1, the calculation unit X includes, for example, an engine shaft output value calculation means X1, a fuel consumption calculation means X2, and an operable time calculation means XZ.

Then, the engine shaft output value calculation means X1 calculates the current engine shaft output value of the engine E.

For example, the engine shaft output value calculating means X1 is a current detected value and a current output calculated value calculated based on the current detected value and a generator constant stored in the third storage means M3. With reference to the generator efficiency value-related data stored in the first storage means M1, the generator efficiency value with respect to the current detected value of the engine-driven power generation device 100 is read out based on at least one of the above, and the current detected value is read. And, the current engine shaft output value is calculated based on the current active power value included in at least one of the current output calculated values and the read generator efficiency value.

Further, the fuel consumption calculation means X2 of the calculation unit X calculates the fuel consumption with respect to the current detection value (that is, the current output value) of the engine drive power generation device 100 detected by the detection unit D. ..

For example, the fuel consumption calculation means X2 is based on the current engine shaft output value and the current engine rotation value (rotation speed) included in at least one of the current detected value and the current output calculated value. 2 The fuel consumption amount with respect to the current detected value of the engine drive power generation device 100 is calculated with reference to the fuel consumption amount-related data stored in the storage means M2.

Further, the operable time calculation means XZ of the calculation unit X is based on the current fuel remaining amount value detected by the fuel remaining amount value detecting means DZ and the current fuel consumption amount calculated by the fuel consumption amount calculation means X2. The current operable time of the engine-driven power generator 100 is calculated.

The operable time calculation means XZ calculates the operable time of the engine drive power generation device 100 by, for example, dividing the current remaining fuel value by the current fuel consumption.

[Display]
Further, the display unit H is adapted to display the operating status, output status, and the like of the engine drive power generation device 100.

As shown in FIG. 1, the display unit H includes, for example, the calculation result display means H1.

Then, the calculation result display means H1 is adapted to display the calculation result by the calculation unit X.

For example, the calculation result display means H1 takes the data calculated by the calculation unit X as an input and displays it in a display method that can be identified by a person.

The calculation result display means H1 adds a display meter for at least one of the fuel consumption amount and the estimated operable time, which are the calculation results, in addition to the display meter provided in the display unit H of the general engine drive power generation device 100. include.

However, the calculation result display means H1 is not particularly limited as long as it can display predetermined information, and is required information such as wired / wireless to an external communication terminal such as a smartphone or tablet without providing a display instrument. Information may be transmitted and displayed by a transmission means.

[Fuel consumption calculation method]
Next, an example of the fuel consumption calculation method of the engine-driven power generation device 100 having the above configuration and function will be described.

Here, FIG. 2A is a diagram showing an example of a flow of calculation in the engine-driven power generation device 100 shown in FIG. FIG. 2B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 100 shown in FIG. 1. FIG. 2C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 100 shown in FIG. 1.

First, as shown in FIG. 2A, for example, the fuel consumption acquisition device 102 acquires the current output value (hereinafter referred to as the current detection value) of the engine drive power generation device 100 by the detection unit D (S1).

Then, the fuel consumption acquisition device 102 calculates the current output by the calculation unit X based on the current detection value, the current detection value, and the generator constant stored in the third storage means M3. The value (SD) is calculated (S2). That is, the output voltage value, the output current value, the power factor value, and the engine rotation value are obtained by either the current detected value or the current output calculated value.

Then, as shown in FIG. 2B, the engine shaft output value calculation means X1 of the calculation unit X has the current detection value, the current detection value, and the generator constant stored in the third storage means M3. With reference to the generator efficiency value relation data (S3) stored in the first storage means M1 based on at least one of the current output calculated values (SD) calculated based on the engine drive power generator 100. The generator efficiency value for the current detected value is read, and the current engine axis is based on the current active power value contained in at least one of the current detected value and the current output calculated value and the read generator efficiency value. The output value (SE) is calculated (S4) (that is, the corresponding generator efficiency value is read out from the generator efficiency value related data stored in the storage unit M).

Then, as shown in FIG. 2C, the fuel consumption calculation means X2 has the current engine shaft output value (SE in FIG. 2B) and at least one of the current detected value and the current output calculated value (SD in FIG. 2A). Based on the current engine rotation value (rotation speed) included in the engine drive power generation device 100, the current detection value of the engine drive power generation device 100 is referred to with reference to the fuel consumption-related data (S5) stored in the second storage means M2. (That is, the corresponding current fuel consumption is read from the fuel consumption-related data stored in the storage unit M).

As described above, in the fuel consumption acquisition device of the first embodiment, the generator efficiency value-related data, which depends only on the generator G, and the fuel consumption-related data, which depends only on the engine E, are used. Calculate fuel consumption.

Therefore, it is possible to measure the data independently for the engine E and the generator G, and when the engine drive power generation device is composed of the combination of the engine E and the generator G for which the measurement data already exists, the data has already been measured individually. Data may be used, and if measurement data of either engine E or generator G exists, only the measurement of the other data without measurement data may be performed.

That is, according to the fuel consumption amount acquisition device of the first embodiment, it is possible to save the measurement time of the data used for calculating the fuel consumption amount.

In the second embodiment, an example of the configuration of the fuel consumption acquisition device of the first embodiment described above in consideration of the operating conditions of the engine-driven power generation device will be described.

[Engine-driven power generator]
Here, FIG. 3 is a diagram showing an example of a system configuration including the engine drive power generation device 200 according to the second embodiment. Note that, in FIG. 3, the same configuration as in the first embodiment described above has the same reference numerals as those in FIG. 1, and the description may be omitted in the following description for the sake of simplicity. Further, in the example of FIG. 3, for the sake of simplicity, the operable time calculating means XZ and the fuel remaining amount value detecting means DZ shown in FIG. 1 have been omitted, but the engine is driven as in the first embodiment. It may be provided in the power generation device 200.

For example, as shown in FIG. 3, the engine drive power generation device 200 according to the second embodiment includes an engine E, a fuel tank T, a generator G, an output unit Y, and an electrical component unit 201.

Then, as shown in FIG. 3, for example, the electrical component unit 201 mounted on the engine drive power generation device 200 includes a control unit CNT, an operation unit OP, a display unit H, a storage unit M, and a detection unit D. , And a calculation unit X.

Of the components of the electrical component unit 201, at least the display unit H, the storage unit M, the detection unit D, and the calculation unit X are applied to the engine drive power generation device 200 to reduce the fuel consumption of the engine E. It constitutes the fuel consumption acquisition device 202 to be acquired.

[Detection unit]
Here, in the second embodiment, the detection unit D includes, for example, an output value detecting means D1 and an operating condition detecting means DA, as shown in FIG. Although the detection unit D is defined as a component of the electrical component unit 201 in the example of FIG. 3, it may be arranged so as to accompany each configuration of the engine drive power generation device 200.

As described above, in the second embodiment, the detection unit D further includes the operating condition detecting means DA as compared with the first embodiment.

The operating condition detecting means DA detects an operating condition determination value for determining the current operating condition of the engine drive power generation device 200 based on the output of the generator G.

The operating condition is a condition of an element that is set by the operation unit OP or the like before the operation of the engine drive power generation device 200 and is hardly changed during the operation and can be regarded as constant.

The operating conditions include, for example, a voltage set value (three-phase 200, 220, 400, 440 V or single-phase 100 V, etc.) supplied to the load L, an output frequency set value (50 / 60 Hz), and the output unit Y of the load L. The connection method (phase-to-line or line-to-line, number of connections, etc.) corresponds.

Then, the above-mentioned operation condition detection means DA is a method of connecting a value necessary for determining the above-mentioned operation condition (for example, a signal from the voltage changeover switch set by the operation unit OP, and a load L to the output unit Y). It is a means to detect the output current value, etc. for the judgment of.

The input set value in the operation unit OP may be detected and used as the operating condition determination value, or the value such as the output voltage value or the output current value actually output may be detected and used. Further, the current output value detected by the output value detecting means D1 may be included.

The output value of the current engine-driven power generation device 200 of this embodiment is assumed to be an output voltage value, an output current value, a power factor value, an engine rotation value, or a value that can be derived by calculation. However, for example, when a voltage set value output by the generator G during operation of the engine drive power generator 200 is specified in advance as an operating condition and the generator efficiency value related data is measured for each voltage set value, the engine drive power generation is performed. Since the voltage value can be regarded as a constant voltage set value under each operating condition unless there is a sudden load fluctuation during general use of the device 200, the voltage set value detected by the operating condition detecting means DA is the current voltage value. It is not necessary to sequentially measure the output voltage value as the output value, and the number of sensors for measuring the voltage value can be reduced.

Further, for example, when the output frequency value is specified as the operating condition, the engine rotation value can be calculated based on the output frequency value, so that it is not necessary to measure the engine rotation value and the engine rotation value is measured. Sensors can be reduced.

By measuring the relational data for the values that can be regarded as constant during operation in this way, it is possible to simplify the measurement of the relational data and reduce the number of sensors for measuring the output value.

[Memory]
Further, the storage unit M includes, for example, as shown in FIG. 3, a first storage means M1, a second storage means M2, and a third storage means M3, as in the first embodiment.

The first storage means M1 stores the generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator G.

Here, in the second embodiment, the generator efficiency value-related data is measured and stored for each operating condition that is expected to be used.

Here, an example of the measurement flow of the generator efficiency value-related data in consideration of the operating conditions in the second embodiment will be described.

For example, when the generator G is an AC generator, the output value is an output voltage value, an output current value, and a power factor value.

In this case, first, (11) a power supply source is connected to the generator G via a torque meter, and a load test device (power factor adjustable) is connected to the output line of the generator G. The power supply source generates power such as a motor and an engine.

Then, (12) the operating conditions, the power factor value, and the output voltage value are fixed, and the torque and the rotation speed of the power supply source with respect to the output current value of the generator G are measured by sequentially changing the ratio of the output current value. The measurement range of the output current value is from 0 to the rating, and the step size is a small width that seems to be sufficient considering the error in interpolation by a function using approximation.

Then, (13) the shaft output value of the power supply source is calculated from the torque and the rotation speed, the active power value is calculated from the current output current value, the set voltage value, and the set power factor value, and the active power value is output to the shaft. Divide by the value to get the generator efficiency value.

As a result, the generator efficiency value for any output current value under the current operating conditions, the set voltage value, and the set power factor value is obtained.

Then, (14) the set power factor value is sequentially changed, and the above (12) to (13) are executed.

Then, (15) the set voltage value is sequentially changed, and the above (12) to (14) are executed.

As a result, the generator efficiency value for any output voltage value, output current value, and power factor value under the current operating conditions is obtained.

Then, (16) the operating conditions are changed, and the above (12) to (15) are executed.

Then, (17) the measured data is shaped. For example, processing such as lookup table, graphing, approximation function, and interpolation by interpolation is executed.

This makes it possible to obtain a generator efficiency value for any operating condition, output voltage value, output current value, and power factor value.

On the other hand, when the generator G is a DC generator, the output value becomes an output voltage value and an output current value. In the case of this DC generator, since it is not necessary to classify the cases based on the power factor value, an arbitrary output voltage value and output current can be obtained by the same flow as that obtained by omitting the flow of (14) from the above flow. The generator efficiency value for the value can be obtained.

Further, as described above, for example, when the voltage set value output by the generator G during the operation of the engine drive power generation device 200 is determined in advance as the operating condition, when the set voltage value is sequentially changed in the flow of the above (15), the set voltage value is sequentially changed. The above (12) to (14) may be executed for the voltage set value output by the generator G when the engine drive power generation device 200 is operated.

As described above, in the second embodiment, a plurality of generator efficiency value-related data stored in the first storage means M1 are required for the operating conditions expected to be used in the engine-driven power generation device 200.

[Calculation unit]
Further, the calculation unit X includes, for example, as shown in FIG. 3, an engine shaft output value calculation means X1 and a fuel consumption calculation means X2, as in the first embodiment.

In particular, in the second embodiment, as shown in FIG. 3, the engine shaft output value calculation means X1 further includes the relational data selection means X1A.

The relational data selection means X1A selects the generator efficiency value relational data to be used for the calculation based on the operation condition determination value detected by the operation condition detection means DA of the detection unit D. That is, the relational data selection means X1A selects the generator efficiency value relational data measured in advance under the same operating conditions as the current operating conditions from the first storage means M1.

As described above, in the second embodiment, the engine shaft output value calculation means X1 refers to the generator efficiency value using the generator efficiency value relational data selected by the relational data selection means X1A.

Further, the fuel consumption calculation means X2 of the calculation unit X calculates the fuel consumption with respect to the current output value of the engine drive power generation device 200 detected by the detection unit D and the operating condition determination value (hereinafter referred to as the current detection value). It has become.

Then, in the second embodiment, the fuel consumption calculation means X2 is the current engine rotation value (rotation speed) included in at least one of the current engine shaft output value, the current detection value, and the current output calculation value. Based on the above, the fuel consumption amount with respect to the current detection value of the engine drive power generation device 200 is calculated with reference to the fuel consumption amount relational data stored in the second storage means M2 selected by the relational data selection means X1A. It has become like.

The other configurations and functions of the engine-driven power generation device 200 according to the second embodiment are the same as those of the first embodiment.

[Fuel consumption calculation method]
Next, an example of the fuel consumption calculation method of the engine-driven power generation device 200 having the above configuration and function will be described.

Here, FIG. 4A is a diagram showing an example of a flow of calculation in the engine-driven power generation device 200 shown in FIG. FIG. 4B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 200 shown in FIG. FIG. 4C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 200 shown in FIG.

First, the fuel consumption acquisition device 202 acquires the current output value of the engine-driven power generation device 200 by the detection unit D, for example, as shown in FIG. 4A.

Then, the fuel consumption acquisition device 202 calculates the current output by the calculation unit X based on the current detection value, the current detection value, and the generator constant stored in the third storage means M3. Calculate the value (SD). That is, the output voltage value, the output current value, the power factor value, and the engine rotation value are obtained by either the current detected value or the current output calculated value.

When the operating condition includes, for example, the voltage set value output by the generator G during the operation of the engine drive power generation device 200, the voltage set value included in the operating condition determination value detected by the operating condition detecting means DA is the current voltage. It may be used as a value.

Further, in the second embodiment, as shown in FIG. 4A, the operating condition detecting means DA determines the operating condition determination value for determining the current operating condition of the engine drive power generation device 200 based on the output of the generator G. Is detected.

Then, as shown in FIG. 4B, in the second embodiment, the relational data selection means X1A generates power used for the calculation based on the operation condition determination value (SU) detected by the operation condition detection means DA of the detection unit D. Select the efficiency value related data.

Then, the engine shaft output value calculation means X1 of the calculation unit X is calculated based on the current detection value, the current detection value, and the generator constant stored in the third storage means M3. With reference to the generator efficiency value relational data stored in the first storage means M1 selected by the relational data selection means X1A based on at least one of the output calculated values (SD), the current engine drive generator 200 The generator efficiency value for the detected value is read, and the current engine shaft output value is based on the current active power value included in at least one of the current detected value and the current output calculated value and the read generator efficiency value. (SE) is calculated (that is, the corresponding generator efficiency value is read out from the generator efficiency value related data stored in the storage unit M).

Then, as shown in FIG. 4C, the fuel consumption calculation means X2 has the current engine shaft output value (SE in FIG. 4B) and at least one of the current detected value and the current output calculated value (SD in FIG. 4A). With reference to the fuel consumption-related data (S5) stored in the second storage means M2 based on the current engine rotation value included in the engine drive power generation device 200, the fuel consumption amount with respect to the current detected value of the engine drive power generation device 200. (SN) is calculated (that is, the corresponding current fuel consumption is read from the fuel consumption-related data stored in the storage unit M).

As described above, also in the fuel consumption acquisition device of the second embodiment, the generator efficiency value-related data, which depends only on the generator G, and the fuel consumption-related data, which depends only on the engine E, are used. And calculate the fuel consumption.

Therefore, it is possible to measure the data independently for the engine E and the generator G, and when the engine drive power generation device is composed of the combination of the engine E and the generator G for which the measurement data already exists, the data has already been measured individually. Data may be used, and if measurement data of either engine E or generator G exists, only the measurement of the other data without measurement data may be performed.

That is, according to the fuel consumption amount acquisition device of the second embodiment, it is possible to save the measurement time and the storage capacity of the data used for calculating the fuel consumption amount.

In particular, in the fuel consumption acquisition device according to the second embodiment, the generator efficiency is set in advance for each operating condition, which is a condition that is set before the operation of the engine-driven power generation device and can be regarded as constant without being changed during the operation. By measuring the value-related data, it is possible to shorten the data measurement time, reduce the amount of data, and omit the sensor.

In the third embodiment, an example of a configuration in which the generator of the engine-driven power generation device has a main power output unit and an auxiliary power output unit will be described.

[Engine-driven power generator]
Here, FIG. 5 is a diagram showing an example of a system configuration including the engine drive power generation device 300 according to the third embodiment. Note that, in FIG. 5, the same configuration as in the first embodiment described above has the same reference numerals as those in FIG. 1, and the description may be omitted in the following description for the sake of simplicity. Further, in the example of FIG. 5, for the sake of simplicity, the operable time calculation means XZ and the fuel residual value detecting means DZ shown in FIG. 1 have been omitted, but the engine is driven as in the first embodiment. It may be provided in the power generation device 300.

For example, as shown in FIG. 5, the engine drive power generation device 300 according to the third embodiment includes an engine E, a fuel tank T, a generator G, a main power output unit YM, and an auxiliary power output unit YS. It is provided with an electrical component unit 301.

Then, for example, as shown in FIG. 5, the main power output unit YM outputs the three-phase power output from the main power output line of the generator G to the external main power load LM. ..

Further, as shown in FIG. 5, the auxiliary power supply output unit YS outputs, for example, the single-phase power of the auxiliary power supply output line drawn from at least one phase of the main power supply output line to the external auxiliary power supply load LS. It has become.

Here, "pulling out" means providing an auxiliary power output line in parallel with any phase of the main power output line or the output end between the lines, or providing a tap at an arbitrary position of the main power winding. It includes both meanings of providing an auxiliary power output line to the tap.

As described above, in the third embodiment, the engine drive power generation device 300 includes a main power output unit YM and an auxiliary power output unit YS instead of one output unit Y as compared with the first embodiment.

Then, as shown in FIG. 5, for example, the electrical component unit 301 mounted on the engine drive power generation device 300 includes a control unit CNT, an operation unit OP, a display unit H, a storage unit M, and a detection unit D. , And a calculation unit X.

Of the components of the electrical component unit 301, at least the display unit H, the storage unit M, the detection unit D, and the calculation unit X are applied to the engine drive power generation device 300 to reduce the fuel consumption of the engine E. The fuel consumption acquisition device 302 to be acquired is configured.

[Detection unit]
Here, in the third embodiment, the detection unit D includes, for example, an output value detection means D1 and a usage state determination value detection means DB, as shown in FIG. Although the detection unit D is defined as a component of the electrical component unit 201 in the example of FIG. 5, it may be arranged so as to accompany each configuration of the engine drive power generation device 300.

As described above, in the third embodiment, the detection unit D further includes the usage state determination value detecting means DB as compared with the first embodiment.

The usage state determination value detecting means DB detects the usage state determination value for determining the current usage state of the main power output unit YM and the auxiliary power output unit YS of the engine drive power generation device 300.

Then, in the third embodiment, the output value detecting means D1 obtains both the output value of the current main power supply output unit YM of the engine drive power generation device 300 and the output value of the current auxiliary power supply output unit YS at present. It is designed to be detected as an output value (hereinafter referred to as the current detection value).

The usage state determination value detecting means DB may detect the presence or absence of a voltage or current generated in each output line as the usage state determination value, or may use the value detected by the output value detecting means D1.

[Memory]
Further, the storage unit M includes, for example, as shown in FIG. 5, a first storage means M1, a second storage means M2, and a third storage means M3, as in the first embodiment.

The first storage means M1 stores the generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator G.

Here, in the third embodiment, the generator efficiency value-related data stored in the first storage means M1 of the storage unit M is the generator main power source indicating the relationship between the generator efficiency value and the generator main power output value. It includes efficiency value-related data and generator auxiliary power efficiency value-related data showing the relationship between the generator efficiency value and the generator auxiliary power output value.

[Calculation unit]
Further, the calculation unit X includes, for example, as shown in FIG. 5, an engine shaft output value calculation means X1 and a fuel consumption calculation means X2, as in the first embodiment.

In particular, in the third embodiment, as shown in FIG. 5, the engine shaft output value calculation means X1 further includes the use state determination means X1B.

The use state determination means X1B determines the use state of the main power output unit YM and the auxiliary power output unit YS of the engine drive power generation device 300 based on the use state determination value detected by the use state determination value detection means DB. It has become.

Then, the fuel consumption calculation means X2 of the engine drive power generation device 300 is based on the generator efficiency value related data based on the judgment result of the usage state determination means X1B of the engine shaft output value calculation means X1 and the current detection value. The fuel consumption for the current detection value is calculated.

The other configurations and functions of the engine-driven power generation device 300 according to the third embodiment are the same as those of the first embodiment.

[Fuel consumption calculation method]
Next, an example of the fuel consumption calculation method of the engine-driven power generation device 300 having the above configuration and function will be described.

Here, FIG. 6A is a diagram showing an example of a flow of calculation in the engine drive power generation device 300 shown in FIG. FIG. 6B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 300 shown in FIG. FIG. 6C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 300 shown in FIG.

First, in the fuel consumption acquisition device 302, as shown in FIG. 6A in the third embodiment, the output value detecting means D1 has the output value of the current main power output unit YM of the engine drive power generation device 300 and the current output value. The output value of the auxiliary power output unit YS is detected as the current detection value.

Then, the fuel consumption acquisition device 302 calculates the current output by the calculation unit X based on the current detection value, the current detection value, and the generator constant stored in the third storage means M3. Calculate the value (SD). That is, the output voltage value, the output current value, the power factor value, and the engine rotation value are obtained by either the current detected value or the current output calculated value.

Further, in the third embodiment, the usage state determination value detecting means DB detects the usage state determination value for determining the current usage state of the main power output unit YM and the auxiliary power output output unit YS of the engine drive power generation device 300. (SS).

Then, for example, as shown in FIG. 6B, the use state determination means X1B of the engine shaft output value calculation means X1 is the engine drive power generation device 300 based on the use state determination value detected by the use state determination value detection means DB. Determine the usage status of the main power output unit YM and the auxiliary power output unit YS.

Then, when the engine shaft output value calculation means X1 determines that the use state determination means X1B is using only the main power output unit YM (SQ1), the current detection value and the current output calculation value are set to at least one of the current detection values. The current detection of the engine-driven power generation device 300 with reference to the generator main power-efficiency value-related data stored in the first storage means M1 based on the current main power output value of the engine-driven power generation device 300 included. Read out the generator efficiency value for the value (S4-1-1).

Then, the engine shaft output value calculation means X1 is based on the current main power supply active power value included in at least one of the current detected value and the current output calculated value, and the read generator efficiency value. The main power engine shaft output value is calculated (S4-1-2) and used as the current engine shaft output value (SE).

On the other hand, when the engine shaft output value calculation means X1 determines that the usage state determination means X1B is using only the auxiliary power output unit YS (SQ2), it is set to at least one of the current detection value and the current output calculation value. The current detection of the engine-driven power generation device 300 with reference to the generator auxiliary power-efficiency value-related data stored in the first storage means M1 based on the current auxiliary power output value of the engine-driven power generation device 300 included. Read out the generator efficiency value for the value (S4-2-1).

Then, the engine shaft output value calculation means X1 is based on the current auxiliary power supply active power value included in at least one of the current detected value and the current output calculated value, and the read generator efficiency value. The auxiliary power engine shaft output value is calculated (S4-2-2) and used as the current engine shaft output value (SE).

Further, when the engine shaft output value calculation means X1 determines that the use state determination means X1B is using the main power output unit YM and the auxiliary power output unit YS at the same time (SQ3), the current detection value and the current detection value are used. Based on the current main power output value of the engine drive power generation device 300 included in at least one of the output calculated values, the engine is driven with reference to the generator main power efficiency value related data stored in the first storage means M1. The generator efficiency value with respect to the current detected value of the power generation device 300 is read out (S4-3-1).

Then, the engine shaft output value calculation means X1 calculates the current main power engine shaft output value based on the current main power active power value of the engine drive power generation device 300 and the read generator efficiency value (S4). -3-2).

Then, the engine shaft output value calculation means X1 calculates the auxiliary power supply active power value and the auxiliary power supply additional loss value from the current detection value and the generator constant, and the current main power supply engine of the above (S4-3-2). The sum with the shaft output value is used as the current engine shaft output value (S4-3-3).

That is, when the engine shaft output value calculation means X1 determines that the use state determination means X1B is using the main power output unit YM and the auxiliary power output unit YS at the same time (SQ3), the current detection value and the current detection value are used. The sum of the auxiliary power supply active power value and the auxiliary power supply additional loss value included in at least one of the output calculated values and the main power supply engine shaft output value calculated by the same method as when only the main power supply output unit YM is in use. Is used as the current engine shaft output value.

In addition, the above-mentioned auxiliary power supply additional loss value is the copper loss that occurs only in the place where the main power supply output line and the auxiliary power supply output line share the circuit and the auxiliary output line due to the current increased by the use of the auxiliary power supply in the third embodiment. It is calculated from the winding resistance value and wiring resistance value of the place where the current flows, the main power supply output current value, and the auxiliary power supply output current value.

Then, as shown in FIG. 6C, the fuel consumption calculation means X2 has the current engine shaft output value (SE in FIG. 6B) and at least one of the current detected value and the current output calculated value (SD in FIG. 6A). With reference to the fuel consumption-related data (S5) stored in the second storage means M2 based on the current engine rotation value included in the engine drive power generation device 300, the fuel consumption amount with respect to the current detected value of the engine drive power generation device 300. (SN) is calculated (that is, the corresponding current fuel consumption is read from the fuel consumption-related data stored in the storage unit M).

As described above, also in the fuel consumption acquisition device of the third embodiment, the generator efficiency value-related data, which depends only on the generator G, and the fuel consumption-related data, which depends only on the engine E, are used. And calculate the fuel consumption.

Therefore, it is possible to measure the data independently for the engine E and the generator G, and when the engine drive power generation device is composed of the combination of the engine E and the generator G for which the measurement data already exists, the data has already been measured individually. Data may be used, and if measurement data of either engine E or generator G exists, only the measurement of the other data without measurement data may be performed.

That is, according to the fuel consumption amount acquisition device of the third embodiment, it is possible to save the measurement time of the data used for calculating the fuel consumption amount.

In particular, according to the invention according to the third embodiment, when the main power output unit YM and the auxiliary power output unit YS are used separately, the generator main power efficiency value-related data and power generation separately measured in advance are used. The engine shaft output value is calculated using the machine auxiliary power efficiency value related data. On the other hand, when the main power output unit YM and the auxiliary power output unit YS are used at the same time, the main power engine shaft output is output using the generator main power efficiency value-related data separately measured in advance without considering the auxiliary power. Calculate the value.

Then, the subsequent calculation is executed with the sum of the main power supply engine shaft output value, the auxiliary power supply active power, and the auxiliary power supply additional loss as the engine shaft output value.

In this way, by using the data measured independently for the main power supply and the auxiliary power supply in the calculation when the main power supply and the auxiliary power supply are used at the same time, the output condition of the main power supply and the output condition of the auxiliary power supply can be changed as before. It is not necessary to measure as many data as the number of combinations of, and it is possible to shorten the measurement time of the efficiency value-related data required for the calculation and reduce the amount of data.

In the fourth embodiment, in the configuration in which the generator of the engine-driven power generation device described in the above-described third embodiment has a main power source and an auxiliary power source, the operating conditions of the engine-driven power generation device described in the second embodiment are taken into consideration. An example will be described.

[Engine-driven power generator]
Here, FIG. 7 is a diagram showing an example of a system configuration including the engine drive power generation device 400 according to the fourth embodiment. In FIG. 7, the same configurations as those in the above-described first to third embodiments are designated by the same reference numerals as those in FIGS. 1, 3, and 5, and the following description is omitted for the sake of simplicity. There is. Further, in the example of FIG. 7, for the sake of simplicity, the operable time calculation means XZ and the fuel residual value detecting means DZ shown in FIG. 1 have been omitted, but the engine is driven as in the first embodiment. It may be provided in the power generation device 400.

For example, as shown in FIG. 7, the engine drive power generation device 400 according to the fourth embodiment includes an engine E, a fuel tank T, a generator G, a main power output unit YM, and an auxiliary power output unit YS. It is provided with an electrical component unit 401.

Then, for example, as shown in FIG. 7, the main power output unit YM outputs the three-phase power output from the main power output line of the generator G to the external main power load LM. ..

Further, for example, as shown in FIG. 7, the auxiliary power output unit YS outputs the single-phase power of the auxiliary power output line drawn from at least one phase of the main power output line to the external auxiliary power load LS. It has become.

As described above, in the fourth embodiment, the engine drive power generation device 400 includes the main power supply output unit YM and the auxiliary power supply output unit YS, as in the third embodiment.

Then, as shown in FIG. 7, for example, the electrical component unit 401 mounted on the engine drive power generation device 400 includes a control unit CNT, an operation unit OP, a display unit H, a storage unit M, and a detection unit D. , And a calculation unit X.

Of the components of the electrical component unit 401, at least the display unit H, the storage unit M, the detection unit D, and the calculation unit X are applied to the engine drive power generation device 400 to reduce the fuel consumption of the engine E. It constitutes the fuel consumption acquisition device 402 to be acquired.

[Detection unit]
Here, in the fourth embodiment, the detection unit D includes, for example, an output value detecting means D1, an operating condition detecting means DA, and a usage state determination value detecting means DB, as shown in FIG. 7. Although the detection unit D is defined as a component of the electrical component unit 201 in the example of FIG. 7, it may be arranged so as to accompany each configuration of the engine drive power generation device 400.

As described above, in the fourth embodiment, the detection unit D includes the operating condition detecting means DA as in the second embodiment, and also includes the usage state determination value detecting means DB as in the third embodiment.

[Memory]
Further, the storage unit M includes, for example, as shown in FIG. 7, a first storage means M1, a second storage means M2, and a third storage means M3, as in the first to third embodiments.

The first storage means M1 stores the generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator G.

Here, in the fourth embodiment, as in the third embodiment, the generator efficiency value-related data stored in the first storage means M1 of the storage unit M is the generator efficiency value with respect to the generator main power output value. It includes generator main power efficiency value related data showing the relationship and generator auxiliary power efficiency value related data showing the relationship between the generator efficiency value and the generator auxiliary power output value.

Further, in the fourth embodiment, as in the second embodiment, the generator efficiency value-related data is measured and stored for each operating condition that is expected to be used.

[Calculation unit]
Further, the calculation unit X includes, for example, as shown in FIG. 7, an engine shaft output value calculation means X1 and a fuel consumption calculation means X2, as in the first to third embodiments.

In particular, in the fourth embodiment, as shown in FIG. 7, the engine shaft output value calculation means X1 includes the relational data selection means X1A as in the second embodiment and the usage state determination means X1B as in the third embodiment. including.

Then, the related data selection means X1A selects the generator efficiency value related data to be used for the calculation based on the operating condition determination value detected by the operating condition detecting means DA of the detection unit D, as in the second embodiment. It has become. That is, the relational data selection means X1A selects the generator efficiency value relational data measured in advance under the same operating conditions as the current operating conditions from the first storage means M1.

Further, as in the third embodiment, the use state determination means X1B has a main power output unit YM and an auxiliary power output unit of the engine drive power generation device 400 based on the use state determination value detected by the use state determination value detection means DB. The usage status of YS is determined.

Then, the fuel consumption calculation means X2 is selected by the relational data selection means X1A and is used as the generator efficiency value relational data and the current detection value based on the judgment result of the usage state determination means X1B of the engine shaft output value calculation means X1. Based on this, the fuel consumption amount with respect to the current detection value of the engine drive power generator 300 is calculated.

The other configurations and functions of the engine-driven power generation device 400 according to the fourth embodiment are the same as those of the first to third embodiments.

[Fuel consumption calculation method]
Next, an example of a fuel consumption calculation method for the engine-driven power generation device 400 having the above configuration and function will be described.

Here, FIG. 8A is a diagram showing an example of a flow of calculation in the engine drive power generation device 400 shown in FIG. 7. FIG. 8B is a diagram showing an example of a calculation flow in the engine shaft output value calculation means X1 of the engine drive power generation device 400 shown in FIG. 7. FIG. 8C is a diagram showing an example of a calculation flow in the fuel consumption calculation means X2 of the engine drive power generation device 400 shown in FIG. 7.

First, in the fuel consumption acquisition device 402, as shown in FIG. 8A in the present embodiment 4, the output value detecting means D1 has the output value of the current main power output unit YM of the engine drive power generation device 400 and the current output value. The output value of the auxiliary power output unit YS is detected as the current output value.

Then, the fuel consumption acquisition device 402 is stored in the current output value, the operating condition determination value (hereinafter referred to as the current detection value), the current detection value, and the third storage means M3 by the calculation unit X. The current output calculation value is calculated based on the generator constant (SD). That is, the output voltage value, the output current value, the power factor value, and the engine rotation value are obtained by either the current detected value or the current output calculated value.

Then, in the fourth embodiment, as shown in FIG. 8A, the operating condition detecting means DA determines the operating condition determination value for determining the current operating condition of the engine drive power generation device 400 based on the output of the generator G. Is detected (SU).

Further, in the fourth embodiment, the usage state determination value detecting means DB detects the usage state determination value for determining the current usage state of the main power output unit YM and the auxiliary power output output unit YS of the engine drive power generation device 400. (SS).

Then, for example, as shown in FIG. 8B, the use state determination means X1B of the engine shaft output value calculation means X1 of the engine drive power generation device 400 is based on the use state determination value detected by the use state determination value detection means DB. Determine the usage status of the main power output unit YM and the auxiliary power output unit YS.

Then, when the engine shaft output value calculation means X1 determines that the use state determination means X1B is using only the main power output unit YM (SQ1), the current detection value and the current output calculation value are set to at least one of them. With reference to the generator main power efficiency value relation data stored in the first storage means M1 selected by the relation data selection means X1A based on the current main power output value of the engine drive power generation device 400 included, the engine. The generator efficiency value with respect to the current detected value of the drive power generation device 400 is read out (S4-1-1).

Then, the engine shaft output value calculation means X1 is based on the current main power supply active power value included in at least one of the current detected value and the current output calculated value, and the read generator efficiency value. The main power engine shaft output value is calculated (S4-1-2) and used as the current engine shaft output value (SE).

On the other hand, when the engine shaft output value calculation means X1 determines that the usage state determination means X1B is using only the auxiliary power output unit YS (SQ2), it is set to at least one of the current detection value and the current output calculation value. With reference to the generator auxiliary power efficiency value related data stored in the first storage means M1 selected by the related data selection means X1A based on the current auxiliary power output value of the engine drive power generator 400 included, the engine. The generator efficiency value with respect to the current detected value of the drive power generation device 400 is read out (S4-2-1).

Then, the engine shaft output value calculation means X1 is based on the current auxiliary power supply active power value included in at least one of the current detected value and the current output calculated value, and the read generator efficiency value. The auxiliary power engine shaft output value is calculated (S4-2-2) and used as the current engine shaft output value (SE).

Further, when the engine shaft output value calculation means X1 determines that the usage state determination means X1B is using the main power output unit YM and the auxiliary power output unit YS at the same time (SQ3), the current detection value and the current detection value are used. Generator main power efficiency value relationship stored in the first storage means M1 selected by the relation data selection means X1A based on the current main power output value of the engine drive power generation device 400 included in at least one of the output calculation values. With reference to the data, the generator efficiency value with respect to the current detection value of the engine drive power generation device 400 is read out (S4-3-1).

Then, the engine shaft output value calculation means X1 calculates the current main power engine shaft output value based on the current main power active power value of the engine drive power generation device 400 and the read generator efficiency value (S4). -3-2).

Then, the engine shaft output value calculation means X1 calculates the auxiliary power supply active power value and the auxiliary power supply additional loss value from the current detection value and the generator constant, and the current main power supply engine of the above (S4-3-2). The sum with the shaft output value is used as the current engine shaft output value (S4-3-3).

That is, when the engine shaft output value calculation means X1 determines that the use state determination means X1B is using the main power output unit YM and the auxiliary power output unit YS at the same time (SQ3), the current detection value and the current detection value are used. The sum of the auxiliary power supply active power value and the auxiliary power supply additional loss value included in at least one of the output calculated values and the main power supply engine shaft output value calculated by the same method as when only the main power supply output unit YM is in use. Is used as the current engine shaft output value.

In addition, the above-mentioned auxiliary power supply additional loss value is the copper loss that occurs only in the place where the main power supply output line and the auxiliary power supply output line share the circuit and the auxiliary output line due to the current increased by the use of the auxiliary power supply in the third embodiment. It is calculated from the winding resistance value and wiring resistance value of the place where the current flows, the main power supply output current value, and the auxiliary power supply output current value.

Then, as shown in FIG. 8C, the fuel consumption calculation means X2 has the current engine shaft output value (SE in FIG. 8B) and at least one of the current detected value and the current output calculated value (SD in FIG. 8A). With reference to the fuel consumption-related data (S5) stored in the second storage means M2 based on the current engine rotation value included in the engine drive power generation device 400, the fuel consumption amount with respect to the current detected value of the engine drive power generation device 400. (SN) is calculated (that is, the corresponding current fuel consumption is read from the fuel consumption-related data stored in the storage unit M).

As described above, also in the fuel consumption acquisition device of the fourth embodiment, the generator efficiency value-related data, which depends only on the generator G, and the fuel consumption-related data, which depends only on the engine E, are used. And calculate the fuel consumption.

Therefore, it is possible to measure the data independently for the engine E and the generator G, and when the engine drive power generation device is composed of the combination of the engine E and the generator G for which the measurement data already exists, the data has already been measured individually. Data may be used, and if measurement data of either engine E or generator G exists, only the measurement of the other data without measurement data may be performed.

That is, according to the fuel consumption amount acquisition device of the fourth embodiment, it is possible to save the measurement time of the data used for calculating the fuel consumption amount.

In particular, in the fuel consumption acquisition device according to the fourth embodiment, the generator efficiency is set in advance for each operating condition, which is a condition that is set before the operation of the engine-driven power generation device and can be regarded as constant without being changed during the operation. By measuring the value-related data, it is possible to shorten the data measurement time, reduce the amount of data, and omit the sensor.

Further, according to the invention according to the fourth embodiment, when the main power output unit YM and the auxiliary power output unit YS are used separately, the generator main power efficiency value-related data and power generation separately measured in advance are used. The engine shaft output value is calculated using the machine auxiliary power efficiency value related data. On the other hand, when the main power output unit YM and the auxiliary power output unit YS are used at the same time, the main power engine shaft output is output using the generator main power efficiency value-related data separately measured in advance without considering the auxiliary power. Calculate the value.

Then, the subsequent calculation is executed with the sum of the main power supply engine shaft output value, the auxiliary power supply active power, and the auxiliary power supply additional loss as the engine shaft output value.

In this way, by using the data measured independently for the main power supply and the auxiliary power supply in the calculation when the main power supply and the auxiliary power supply are used at the same time, the output condition of the main power supply and the output condition of the auxiliary power supply can be changed as before. It is not necessary to measure as many data as the number of combinations of, and it is possible to shorten the measurement time of the efficiency value-related data required for the calculation and reduce the amount of data.

The present invention can also be applied to a machine using the output of the engine-driven power generation device described above, for example, a welding machine.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

100, 200, 300, 400 Engine drive power generator 101, 201, 301, 401 Electrical components 102, 202, 302, 402 Fuel consumption acquisition device E Engine T Fuel tank G Generator Y Output unit YM Main power supply output unit YS Auxiliary power output unit CNT control unit OP operation unit H display unit H1 calculation result display means M storage unit M1 first storage means M2 second storage means M3 third storage means D detection unit D1 output value detection means DZ fuel remaining amount detection Means DA Operating condition detection means DB Usage state judgment value detection means X Calculation unit X1 Engine shaft output value calculation means X1A Related data selection means X1B Usage state judgment means X2 Fuel consumption calculation means XZ Operable time calculation means L Load LM Main power supply Load LS Auxiliary power load

Claims (10)

A fuel consumption acquisition device applied to an engine-driven power generation device including an engine, a generator driven by the engine, and a fuel tank for storing fuel supplied to the engine.
A detection unit that acquires the current detection value including an output value detection means that detects and acquires the current output value of the output unit of the engine drive power generation device, and a detection unit.
A first storage means for storing generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator, the engine shaft output value measured in advance of the engine, and the engine rotation value. A storage unit including a second storage means for storing fuel consumption-related data indicating the relationship of the fuel consumption with respect to the generator and a third storage means for storing the generator constant.
An engine shaft output value calculation means for calculating the current engine shaft output value of the engine, and a calculation unit including a fuel consumption calculation means for calculating the fuel consumption amount with respect to the current detection value of the engine drive power generation device. Prepare,
The engine shaft output value calculation means is
The first is based on at least one of the current detected value and the current output calculated value calculated based on the current detected value and the generator constant stored in the third storage means. With reference to the generator efficiency value-related data stored in the storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generator is read out, and the current detected value and the current output calculated value are read. The current engine shaft output value is calculated based on the current active power value contained in at least one of them and the read-out generator efficiency value.
The fuel consumption calculation means is
The fuel consumption stored in the second storage means based on the current engine shaft output value and the current engine rotation value included in at least one of the current detected value and the current output calculated value. A fuel consumption acquisition device for calculating fuel consumption with respect to the current detection value of the engine-driven power generation device with reference to quantity-related data. The detection unit further includes an operating condition detecting means for detecting an operating condition determination value for determining the current operating condition of the engine-driven power generation device based on the output of the generator.
A plurality of the generator efficiency value-related data stored in the first storage means are obtained for the operating conditions expected to be used in the engine drive power generation device.
The engine shaft output value calculation means is
Further including a relational data selection means for selecting the generator efficiency value relational data to be used for the calculation based on the operating condition determination value.
The fuel consumption acquisition device according to claim 1. The engine drive power generation device is
The main power output section that outputs power from the main power output line,
It is provided with an auxiliary power supply output unit that outputs power drawn from at least one phase of the main power supply output line.
The detector is
Further including a usage state determination value detecting means for detecting a usage state determination value for determining the current usage state of the main power output unit and the auxiliary power output unit of the engine drive power generation device.
The output value detecting means is
The current output value of the main power supply output unit of the engine drive power generation device and the current output value of the auxiliary power supply output unit are detected as the current detection values.
The generator efficiency value-related data stored in the first storage means of the storage unit includes generator main power efficiency value-related data showing the relationship between the generator efficiency value and the generator main power output value, and the generator. Includes generator auxiliary power efficiency value related data showing the relationship between the generator efficiency value and the auxiliary power output value.
The engine shaft output value calculation means is
A usage state determination means for determining the usage state of the main power supply output unit and the auxiliary power supply output unit of the engine drive power generation device is further provided based on the usage state determination value detected by the usage state determination value detecting means.
It is characterized in that the fuel consumption of the engine-driven power generation device with respect to the current detected value is calculated based on the generator efficiency value-related data based on the determination result of the usage state determining means and the current detected value. The fuel consumption acquisition device according to claim 1 or 2. The engine shaft output value calculation means is
When the usage state determination means determines that only the main power output unit is in use,
Based on at least one of the current detected value and the current output calculated value.
With reference to the generator main power source efficiency value-related data stored in the first storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generation device is read out.
Calculate the current main power engine shaft output value based on the current main power active power value included in at least one of the current detected value and the current output calculated value and the read-out generator efficiency value. The fuel consumption acquisition device according to claim 3, wherein the fuel consumption acquisition device is used as the current engine shaft output value. The engine shaft output value calculation means is
When it is determined that the usage state determination means is using only the auxiliary power supply output unit,
Based on at least one of the current detected value and the current output calculated value.
With reference to the generator auxiliary power source efficiency value-related data stored in the first storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generation device is read out.
Calculate the current auxiliary power engine shaft output value based on the current auxiliary power active power value included in at least one of the current detected value and the current output calculated value and the read-out generator efficiency value. However, the fuel consumption acquisition device according to claim 3 or 4, which is used as the current engine shaft output value. The engine shaft output value calculation means is
When it is determined that the usage state determination means is using the main power output unit and the auxiliary power output unit at the same time,
The auxiliary power supply active power value and the auxiliary power supply additional loss value included in at least one of the current detected value and the current output calculated value are calculated by the same method as when only the main power supply output unit is in use. The fuel consumption acquisition device according to claim 4, wherein the sum of the main power source engine shaft output value and the main power engine shaft output value is used as the current engine shaft output value. The detector is
Further equipped with a fuel level detecting means for detecting the current fuel level,
The calculation unit
The current operable time of the engine-driven power generation device is calculated based on the current fuel remaining value detected by the fuel remaining value detecting means and the current fuel consumption calculated by the fuel consumption calculation means. The fuel consumption acquisition device according to any one of claims 1 to 6, further comprising an operable time calculation means. The fuel consumption acquisition device according to any one of claims 1 to 7, further comprising a display unit including a calculation result display means for displaying the calculation result by the calculation unit. A fuel consumption acquisition device applied to an engine-driven power generation device including an engine, a generator driven by the engine, and a fuel tank for storing fuel to be supplied to the engine, wherein the engine-driven power generation is performed. The detector that acquires the current detection value including the output value detection means that detects and acquires the current output value of the output unit of the device, and the generator efficiency value with respect to the pre-measured generator output value of the generator. The first storage means for storing the generator efficiency value relation data showing the relationship, and the second storage means for storing the fuel consumption relation data showing the relationship between the engine shaft output value measured in advance of the engine and the fuel consumption amount with respect to the engine rotation value. A storage unit including a storage means and a third storage means for storing the generator constant, an engine shaft output value calculation means for calculating the current engine shaft output value of the engine, and the current current engine drive power generation device. It is a fuel consumption calculation method by a fuel consumption acquisition device equipped with a calculation unit including a fuel consumption calculation means for calculating fuel consumption with respect to a detected value.
The current output calculated value calculated by the engine shaft output value calculating means based on the current detected value and the current detected value and the generator constant stored in the third storage means. Based on at least one of them, the generator efficiency value with respect to the current detection value of the engine-driven power generation device is read out with reference to the generator efficiency value-related data stored in the first storage means, and the current detection is performed. The current engine shaft output value is calculated based on the current active power value included in at least one of the value and the current output calculated value and the read-out generator efficiency value.
The second storage means based on the current engine shaft output value and the current engine rotation value included in at least one of the current detected value and the current output calculated value by the fuel consumption calculation means. A fuel consumption calculation method, characterized in that the fuel consumption is calculated with respect to the current detected value of the engine-driven power generation device with reference to the fuel consumption-related data stored in. An engine-driven power generator that supplies power to the load.
With the engine
The generator driven by the engine and
A fuel tank that stores the fuel supplied to the engine, and
A fuel consumption acquisition device for acquiring the fuel consumption of the engine-driven power generation device is provided.
The fuel consumption acquisition device is
A detection unit that acquires the current detection value including an output value detection means that detects and acquires the current output value of the output unit of the engine drive power generation device, and a detection unit.
A first storage means for storing generator efficiency value-related data indicating the relationship between the generator efficiency value and the generator output value measured in advance of the generator, the engine shaft output value measured in advance of the engine, and the engine rotation value. A storage unit including a second storage means for storing fuel consumption-related data indicating the relationship of the fuel consumption with respect to the generator and a third storage means for storing the generator constant.
An engine shaft output value calculation means for calculating the current engine shaft output value of the engine, and a calculation unit including a fuel consumption calculation means for calculating the fuel consumption amount with respect to the current detection value of the engine drive power generation device. Prepare,
The engine shaft output value calculation means is
The first is based on at least one of the current detected value and the current output calculated value calculated based on the current detected value and the generator constant stored in the third storage means. With reference to the generator efficiency value-related data stored in the storage means, the generator efficiency value with respect to the current detected value of the engine-driven power generator is read out, and the current detected value and the current output calculated value are read. The current engine shaft output value is calculated based on the current active power value contained in at least one of them and the read-out generator efficiency value.
The fuel consumption calculation means is
The fuel consumption stored in the second storage means based on the current engine shaft output value and the current engine rotation value included in at least one of the current detected value and the current output calculated value. An engine-driven power generation device, characterized in that fuel consumption with respect to the current detection value of the engine-driven power generation device is calculated with reference to quantity-related data.

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