KR20230071324A - Carbon dioxide emission control device for agricluture vehicles and control method thereof - Google Patents

Abstract

The present invention relates to a device capable of controlling carbon dioxide emission of an agricultural work vehicle. An apparatus for controlling carbon dioxide emission of an agricultural work vehicle according to an embodiment of the present application includes a work mode selection unit for selecting a work mode of a tractor; an information receiver configured to receive at least one of the work mode information selected by the work mode selector, basic information of the tractor, and use information of the tractor; and a controller configured to set a target engine speed and a target working speed so that the work selected by the work mode selector can be performed based on the basic information of the tractor and the usage information of the tractor, wherein the target engine revolution When it is determined that the number of revolutions and the target working speed are unsuitable for the selected job, the control unit resets the target engine speed and the target working speed by decreasing them. The carbon dioxide emission control device of the agricultural work vehicle according to the embodiment of the present application can efficiently use the fuel of the work vehicle without waste and can minimize the amount of carbon dioxide emitted.

Description

Carbon dioxide emission control device and control method of agricultural working vehicle {CARBON DIOXIDE EMISSION CONTROL DEVICE FOR AGRICLUTURE VEHICLES AND CONTROL METHOD THEREOF}

The present invention relates to a device capable of controlling carbon dioxide emission of an agricultural work vehicle.

As the Paris Agreement on Climate Change officially takes effect, there is an increasing international demand to reduce greenhouse gases such as carbon dioxide. Globally, the proportion of direct greenhouse gases in the agricultural sector is about 14%, and accordingly, the emission standards for agricultural machinery, such as carbon dioxide, are becoming increasingly strict.

An agricultural tractor is one of the representative agricultural work vehicles, and is used as a power source for various agricultural tasks ranging from light-load fertilizer spraying to heavy-duty plowing. In order to control the carbon dioxide emission of the tractor, fuel must be used without waste, and accordingly, it is required to operate the tractor by selecting an appropriate engine power according to the type of work.

For example, if the tractor is operated in an overpowered state during light-duty agricultural work such as fertilizer application, composting, and pest control, the fuel consumed by the tractor may be wasted, and greenhouse gases such as carbon dioxide may be wasted. More than necessary may be released. Therefore, there is a need for a device capable of reducing greenhouse gas emissions such as carbon dioxide by efficiently using the fuel of agricultural work vehicles without waste.

An object of the present application is to provide a carbon dioxide emission control device and a control method of an agricultural work vehicle capable of controlling greenhouse gas emissions such as carbon dioxide by efficiently using fuel of the agricultural work vehicle without waste.

An apparatus for controlling carbon dioxide emission of an agricultural work vehicle according to an embodiment of the present application includes a work mode selection unit for selecting a work mode of a tractor; an information receiver configured to receive at least one of the work mode information selected by the work mode selector, basic information of the tractor, and use information of the tractor; and a controller configured to set a target engine speed and a target working speed so that the work selected by the work mode selector can be performed based on the basic information of the tractor and the usage information of the tractor, wherein the target engine revolution If it is determined that the speed and the target working speed are not suitable for the selected job, the control unit adjusts the target engine speed and/or the target working speed.

In an embodiment, the information receiving unit includes a highest working speed receiving unit for receiving the highest working speed information corresponding to the working mode selected by the working mode selection unit.

In an embodiment, the information receiver further includes a tractor basic information receiver for receiving maximum torque information on the model of the tractor and engine speed information corresponding to the maximum torque.

In an embodiment, the information receiving unit further includes a tractor usage information receiving unit that receives at least one of engine torque information, engine rotation speed information, engine power information, engine load factor information, and fuel consumption information of the tractor. .

In the embodiment, the tractor is equipped with a Tier-4 engine, and the tractor usage information receiving unit uses engine torque information, engine rotation speed information, engine power information, and engine load factor information of the tractor through CAN communication. , at least one of fuel consumption information is received.

In an embodiment, the control unit includes a target engine rotation speed setting unit configured to set a target engine rotation speed based on an engine rotation speed corresponding to the maximum torque.

In an embodiment, the target engine rotation speed setting unit sets the target engine rotation speed to sequentially decrease.

In an embodiment, the target engine rotation speed setting unit sets the initial target engine rotation speed so that the initial target engine rotation speed is greater than the engine rotation speed corresponding to the maximum torque.

In an embodiment, the control unit further includes a target working speed setting unit for setting a target working speed based on the maximum working speed.

In an embodiment, the target working speed setting unit sets the initial target working speed to be equal to or lower than the maximum working speed.

In an embodiment, the control unit further includes an engine power calculator configured to calculate a target engine power based on the maximum torque and the target engine rotational speed.

In an embodiment, the control unit may further include a workability determination unit that determines whether economic driving is appropriate based on a comparison result between the used engine load factor and a target engine load factor.

In an embodiment, the workability determination unit additionally determines whether economic driving is suitable based on a comparison result between the engine power used and the target engine power.

In an embodiment, the controller further includes a carbon dioxide emission calculation unit that calculates a carbon dioxide emission amount based on the target engine speed.

An agricultural work vehicle according to an embodiment of the present application, wherein the agricultural work vehicle includes a carbon dioxide emission control device, wherein the carbon dioxide emission control device includes: a work mode selection unit for selecting a work mode of a tractor; an information receiver configured to receive at least one of the work mode information selected by the work mode selector, basic information of the tractor, and use information of the tractor; and a controller configured to set a target engine speed and a target working speed so that the work selected by the work mode selector can be performed based on the basic information of the tractor and the usage information of the tractor, wherein the target engine revolution When it is determined that the number of revolutions and the target working speed are unsuitable for the selected job, the control unit resets the target engine speed and the target working speed by decreasing them.

In an embodiment, the agricultural work vehicle is a tractor equipped with a Tier-4 engine.

A method for controlling carbon dioxide emission of an agricultural work vehicle according to an embodiment of the present application includes selecting a work mode of a tractor by a work mode selector; Receiving the maximum torque information of the tractor by the information receiving unit; Receiving engine rotational speed information corresponding to the maximum torque of the tractor by the information receiver; receiving, by the information receiving unit, maximum working speed information corresponding to the working mode selected by the working mode selection unit; Setting a target engine rotation speed based on engine rotation speed information corresponding to the maximum torque by a control unit; calculating, by the control unit, a target engine output based on the maximum torque information and the target engine speed information; receiving, by the information receiver, at least one of engine torque, engine rotation speed, engine power, engine load factor, and fuel consumption information; determining, by the control unit, whether the used engine load rate is lower than a target engine load rate; and calculating, by the control unit, information on the amount of carbon dioxide emitted.

In an embodiment, if the used engine load rate is higher than the target engine load rate, the control unit resets the target engine rotation speed.

In an embodiment, if the used engine power is higher than the target engine power, the controller resets the target engine speed.

A method of operating an agricultural work vehicle according to an embodiment of the present application, wherein the agricultural work vehicle includes a carbon dioxide emission control device, wherein the carbon dioxide emission control device includes a work mode selector, an information receiver, and a controller, and the work mode Selecting a working mode of the tractor by the selection unit; Receiving the maximum torque information of the tractor by the information receiver; Receiving engine rotational speed information corresponding to the maximum torque of the tractor by the information receiver; receiving, by the information receiving unit, maximum working speed information corresponding to the working mode selected by the working mode selection unit; setting, by the control unit, a target engine rotation speed based on engine rotation speed information corresponding to the maximum torque; Setting, by the control unit, a target working speed based on the maximum working speed and the target engine speed; calculating, by the control unit, a target engine output based on the maximum torque information and the target engine speed information; receiving, by the information receiver, at least one of engine torque, engine rotation speed, engine power, engine load factor, and fuel consumption information; determining, by the control unit, whether the used engine load rate is lower than a target engine load rate; and calculating, by the control unit, information on the amount of carbon dioxide emitted.

The carbon dioxide emission control device of the agricultural work vehicle according to the embodiment of the present application can efficiently use the fuel of the work vehicle without waste and can minimize the amount of carbon dioxide emitted.

1 is a view showing an example of an agricultural working vehicle 10 according to an embodiment of the present application.
FIG. 2 is a view showing an example of the carbon dioxide emission control device 100 of FIG. 1 .
FIG. 3 is a flowchart showing the operation of the carbon dioxide emission control device 100 of FIG. 2 .
4 is a diagram showing experimental results of beta values (beta0, beta1) in the VC model among carbon dioxide emission estimation models.
5 is a view showing experimental results of carbon dioxide emission according to engine load.
6 is a diagram showing an example of a screen displayed by the display unit 140 of FIG. 2 .
7 is a view showing a carbon dioxide emission control device 200 according to another embodiment of the present application.
8 is a flowchart showing the operation of the carbon dioxide emission control device 200 of FIG. 7 .

Hereinafter, with reference to the accompanying drawings, in order to describe in detail the technical idea of the present application so that those skilled in the art can easily practice it, embodiments of the present application are referred to the accompanying drawings. will be explained.

1 is a view showing an example of an agricultural working vehicle 10 according to an embodiment of the present application.

Referring to FIG. 1 , an agricultural work vehicle 10 according to an embodiment of the present application may be a vehicle used to grow crops necessary for human life using land. For example, the agricultural work vehicle 10 may be a tractor, a combine, or a rice transplanter. Hereinafter, for convenience of explanation, it will be assumed that the agricultural work vehicle 10 is a tractor.

Since the tractor is designed to be used as a power source in various types of agricultural work, there is a large difference in spare horsepower depending on the type of agricultural work. For example, according to statistics, even in Korea, about 1/4 of plow work and 2/5 of rotary work are carried out with excessive power. In this way, running the tractor in an overpowered state not only causes waste of fuel, but also has a problem of emitting greenhouse gases such as carbon dioxide more than necessary.

In order to suppress fuel waste and greenhouse gas emissions, the agricultural working vehicle 10 according to the embodiment of the present application includes a carbon dioxide emission control device 100. The carbon dioxide emission control device 100 according to an embodiment of the present application can appropriately control the engine load factor and engine output by controlling the engine rotation speed and/or the working speed according to the work mode. Accordingly, not only fuel consumption can be greatly reduced, but also greenhouse gas emissions such as carbon dioxide can be minimized.

FIG. 2 is a view showing an example of the carbon dioxide emission control device 100 of FIG. 1 .

Referring to FIG. 2 , the carbon dioxide emission control device 100 may include a work mode selector 110, an information receiver 120, a control unit 130, and a display unit 140.

The work mode selector 110 may provide the user with information about the work modes of economic driving supported by the carbon dioxide emission control device 100 . For example, when the carbon dioxide emission control device 100 supports the economic operation-plow operation mode and the economic operation-rotary operation mode, the operation mode selector 110 displays the supported operation mode through the display unit 140. information can be provided to the user. Accordingly, the user can select any one of the economic operation-plow work mode and the economic operation-rotary work mode.

The work mode selector 110 may transmit information about the work mode selected by the user to the information receiver 120 . For example, when the user selects the economic operation-plow work mode, the work mode selection unit 100 may transmit information indicating that the economic operation-plow work mode is selected to the information receiver 120 . As another example, when the user selects the economic operation-rotary work mode, the work mode selection unit 100 may transmit information indicating that the economic operation-rotary work mode is selected to the information receiver 120 .

The work mode selection unit 110 may also transmit information on the maximum work speed corresponding to the selected work mode to the information receiver 120 as well as the work mode selected by the user. For example, when the user selects the economic operation-plow work mode, the work mode selector 100 provides the information indicating that the economic operation-plow work mode is selected and the maximum work speed information corresponding to the economic operation-plow work mode. may be transmitted to the information receiving unit 120. As another example, when the user selects the economic operation-rotary work mode, the work mode selection unit 100 provides the maximum work speed information corresponding to the economic operation-rotary work mode together with the information indicating that the economic operation-rotary work mode is selected. It may be transmitted to the information receiving unit 120. Here, the maximum working speed corresponding to the economic operation-plow work mode may be 5 to 6 km/h, and the maximum work speed corresponding to the economical operation-rotary work mode may be 3 to 4 km/h. However, this is exemplary, and the maximum working speed may be set in various ways.

The information receiving unit 120 may receive various types of information for the operation of the carbon dioxide emission control device 100 . The information receiving unit 120 may include a maximum working speed receiving unit 121, a basic tractor information receiving unit 122, and a tractor usage information receiving unit 123.

The highest working speed receiving unit 121 may receive the highest working speed Vm corresponding to the selected working speed. For example, the maximum working speed receiving unit 121 may receive the maximum working speed (Vm) information corresponding to the working mode selected by the user from the working mode selection unit 110 .

However, this is exemplary, and the embodiments of the present application are not limited thereto. As another example, the maximum working speed receiving unit 121 may receive information on the highest working speed (Vm) corresponding to the working mode directly selected by the user. As another example, the maximum working speed receiving unit 121 may store information on the highest working speed (Vm) corresponding to each working mode in advance as a maximum working speed table. In this case, information on the work mode selected by the user is received from the work mode selector 110, and the maximum work speed Vm corresponding to the work mode selected by the user may be selected from the maximum work speed table.

The tractor basic information receiving unit 122 may receive basic information about a tractor model. Here, the basic information on the tractor model may be information about overall performance of the corresponding tractor model. For example, the tractor basic information receiving unit 122 may receive maximum torque (Tm) information of the corresponding tractor model and engine rotation speed (Rm) information corresponding to the maximum torque of the corresponding tractor model. Basic information about the tractor model may be stored in advance in a separate memory in the tractor, for example, and the tractor basic information receiving unit 122 may receive the basic information by reading the information stored in the corresponding memory. .

The tractor usage information receiving unit 123 may receive usage information on a tractor currently working. Here, the usage information on the tractor may be real-time data on the tractor currently in operation. For example, the tractor usage information receiving unit 123 transmits information on engine torque (Tu), engine rotation speed (Ru), engine output (Wu), engine load factor, and/or fuel consumption of the tractor being operated in real time. can receive

In an embodiment of the present application, the tractor 10 may be a tractor equipped with a Tier-4 engine and capable of collecting engine torque data information. Accordingly, the tractor usage information receiving unit 123 may receive usage information on the tractor currently working through CAN communication.

The controller 130 may control various operations of the carbon dioxide emission control device 100 . The controller 130 may control the carbon dioxide emission control device 100 to minimize fuel consumption and carbon dioxide emission by controlling the engine rotation speed and/or the work speed according to the work mode selected by the user. The control unit 130 may include a target engine rotation speed setting unit 131, a target working speed setting unit 132, an engine power calculation unit 133, a workability determination unit 134, and a carbon dioxide emission calculation unit 135. can

The target engine rotation speed setting unit 131 may receive engine rotation speed (Rm) information corresponding to the maximum torque from the tractor basic information receiving unit 122 . The target engine rotation speed setting unit 131 may receive information on whether work is possible from the work availability determination unit 134 . The target engine rotation speed setting unit 131 may set the target engine rotation speed Rt based on the engine rotation speed Rm corresponding to the received maximum torque and information on whether work is possible.

In one embodiment of the present application, the target engine rotation speed setting unit 131 may set the target engine rotation speed Rt to sequentially decrease. Also, the target engine rotation speed setting unit 131 may set the initial target engine rotation speed Rt to be higher than the engine rotation speed Rt corresponding to the maximum torque.

For example, the target engine rotation speed setting unit 131 may set the primary target engine rotation speed Rt to 110% of the engine rotation speed Rm corresponding to the maximum torque. Thereafter, if it is determined that the workability determination unit 134 fails, the target engine rotation speed setting unit 131 sets the secondary target engine rotation speed Rt to the engine rotation speed Rm corresponding to the maximum torque. ) can be set to 105% of In this way, the target engine rotation speed setting unit 131 sets the third target engine rotation speed (Rt) to 100% of the engine rotation speed (Rm) corresponding to the maximum torque and the fourth target engine rotation speed (Rt). It can be set to 95% of the engine rotation speed (Rm) corresponding to the maximum torque.

The target working speed setting unit 132 may receive information on the maximum working speed Vm from the highest working speed receiving unit 121 . The target working speed setting unit 132 may set the target working speed Vt based on the maximum working speed Vm.

In one embodiment of the present application, the target working speed setting unit 132 may set the target working speed Vt so as to sequentially decrease. In addition, the target working speed setting unit 132 may set the target working speed (Vt) equal to or smaller than the maximum working speed (Vm).

For example, the target working speed setting unit 132 may set the primary target working speed (Vt) to 100% of the maximum working speed (Vm) so that the highest working speed (Vm) is also the same. Then, if it is determined that the workability determination unit 134 fails, the target work speed setting unit 132 may set the secondary target work speed Vt to 95% of the maximum work speed Vm. there is. In this way, the target working speed setting unit 132 may set the third target working speed (Vt) and the fourth target working speed (Vt) to 90% and 85% of the maximum working speed (Vm), respectively.

The engine power calculator 133 may receive information on the maximum torque Tm from the tractor basic information receiver 122 . The engine power calculation unit 133 may receive information about the target engine rotation speed Rt from the target engine rotation speed setting unit 131 . The engine power calculation unit 133 may calculate the target engine power (Wt) based on the received maximum torque (Tm) and the target engine rotation speed (Rt).

The workability determination unit 134 may receive information on the maximum torque Tm from the tractor basic information receiver 122 and receive information on the used engine torque Tu from the tractor usage information receiver 123. . The workability determination unit 134 may calculate the engine load factor to be used based on the maximum torque (Tm) and used engine torque (Tu) information. Here, the used engine load rate may mean a real-time load rate of an engine currently in operation. For example, the used engine load factor may be calculated by actual engine torque/engine maximum torque*100. However, this is exemplary, and the used engine load rate may be defined differently.

If the used engine load ratio is higher than the preset target engine load ratio, the workability determination unit 134 may determine that the engine is in an overpowered state and thus fail for economic driving. In this case, the workability determination unit 134 transmits a fail signal to the target engine rotation speed setting unit 131, and the target engine rotation speed setting unit 131 sets the target engine rotation speed Vt based on this. can be reset.

If the used engine power (Wu) is higher than the target engine power (Wt), the workability determination unit 134 may determine that the engine is in an overpowered state and thus fail for economic driving. In this case, the workability determination unit 134 transmits a fail signal to the target engine rotation speed setting unit 131, and the target engine rotation speed setting unit 131 sets the target engine rotation speed Vt based on this. can be reset.

When the used engine load rate is lower than the target engine load rate or the used engine output Wu is lower than the target engine output Wt, the workability determination unit 134 may determine that the economic driving is successful.

The carbon dioxide emission calculation unit 135 may receive information about a target engine rotation speed (Vt) and a target engine load factor selected as suitable for economic driving. The carbon dioxide emission calculator 135 may calculate an expected amount of carbon dioxide emission based on the target engine speed Vt and the target engine load.

Also, the carbon dioxide emission calculation unit 135 may receive information about the used engine rotation speed Vu and the used engine load from the tractor use information receiving unit 123 . In this case, the carbon dioxide emission calculation unit 135 may calculate the carbon dioxide emission amount of the tractor currently working in real time.

The display unit 140 may provide various types of information about the economic driving mode to the user. For example, the display unit 140 may display information on carbon dioxide emissions and/or fuel consumption of the tractor to the user.

FIG. 3 is a flowchart showing the operation of the carbon dioxide emission control device 100 of FIG. 2 .

In step S110, a work mode supporting economic driving may be selected. For example, the user may select one of economic operation-plow work mode and economic operation-rotary work mode through the work mode selector 110 .

In step S120, maximum torque (Tm) information of the tractor (10, see FIG. 1) may be received. For example, the tractor basic information receiving unit 122 may receive maximum torque (Tm) information of the tractor model from a memory inside the tractor 10 . For example, when the tractor 10 is a TS130 model, the maximum torque Tm may be 500 N·m.

In step S130, engine rotation speed (Rm) information corresponding to the maximum torque of the tractor 10 may be received. For example, the tractor basic information receiving unit 122 may receive information about an engine speed Rm corresponding to the maximum torque of the tractor model from a memory inside the tractor. For example, when the tractor 10 is a TS130 model, the engine rotation speed Vm corresponding to the maximum torque may be 1600 rpm.

In step S140, information on a maximum working speed (Vm) corresponding to the selected target working mode may be received. For example, the maximum working speed receiver 121 may receive information about the maximum working speed Vm from the working mode selection unit 110 . For example, the maximum work speed (Vm) corresponding to the economic operation-plow work mode may be any one value between 5 and 6 km/h. As another example, the maximum work speed (Vm) corresponding to the economic operation-rotary work mode may be any one value between 3 and 4 km/h.

In step S150 , a target engine rotation speed Rt may be set based on the engine rotation speed Rm corresponding to the maximum torque. For example, the target engine rotation speed setting unit 131 may initially set the ratio of the target engine rotation speed Rt to the engine rotation speed Rm corresponding to the maximum torque to 110%.

In step S160 , a target working speed Vt may be set based on the maximum working speed Vm and the target engine rotational speed Rt. For example, the target work speed setting unit 132 may initially set the ratio of the target work speed Vt to the maximum work speed Vm as 100%.

In step S170 , the target engine power Wt may be calculated based on the maximum torque Tm and the target engine rotational speed Rt. For example, the engine power calculation unit 133 may calculate the target engine power (Wt) according to the following equation.

Target engine power (kw) = 2 * π * maximum torque (Tm) * engine rotation speed (Rt) / 60,000

In step S180 , information on used engine torque Tu, used engine rotational speed Ru, used engine output Wu, used engine load factor, and fuel consumption may be received. For example, the tractor 10 is equipped with a Tier-4 engine, and the tractor usage information receiving unit 123 may receive information such as used engine torque Tu through CAN communication.

In step S181, the workability determination unit 134 may determine whether the used engine load rate is lower than the target engine load rate.

If the used engine load rate is higher than the target engine load rate, the workability determination unit 134 may determine an overpowered state. In this case, the target engine rotation speed setting unit 131 and the target working speed setting unit 132 determine the target engine rotation speed (Rt) and the target working speed (Vt) based on the determination result of the workability determination unit 134. can be reset. For example, the target engine rotation speed setting unit 131 and the target working speed setting unit 132 may reset the target engine rotation speed Rt and the target working speed Vt to be lower than previously set values, respectively. . If the used engine load factor is lower than the target engine load factor, step S182 is performed.

In step S182, the workability determination unit 134 may determine whether the used engine power Wu is lower than the target engine power Wt.

If the used engine power (Wu) is higher than the target engine power (Wt), the workability determination unit 134 may determine an overpowered state. In this case, the target engine rotation speed setting unit 131 and the target working speed setting unit 132 determine the target engine rotation speed (Rt) and the target working speed (Vt) based on the determination result of the workability determination unit 134. can be reset. For example, the target engine rotation speed setting unit 131 and the target working speed setting unit 132 may reset the target engine rotation speed Rt and the target working speed Vt to be lower than previously set values, respectively. . If the used engine load factor is lower than the target engine load factor, step S190 is performed.

In step S190, information on the amount of carbon dioxide emitted is calculated, and the corresponding information can be displayed to the user. For example, the carbon dioxide emission calculation unit 135 may calculate the expected carbon dioxide emission based on the target engine speed Vt and the target engine load, and the display unit 140 may display it. As another example, the carbon dioxide emission calculation unit 135 calculates the carbon dioxide emission amount of the tractor currently working based on information on the engine speed Vu and the engine load used, and the display unit 140 may display it. .

As described above, the carbon dioxide emission control apparatus 100 according to the embodiment of the present application can appropriately control the engine load factor and engine output by controlling the engine rotation speed and/or the working speed according to the work mode. Accordingly, not only fuel consumption can be greatly reduced, but also greenhouse gas emissions such as carbon dioxide can be minimized.

4 and 5 are diagrams showing results of analyzing carbon dioxide emissions when the engine rotation speed and/or working speed are controlled by the carbon dioxide emission control device 100 of FIG. 2 .

Specifically, FIG. 4 is a diagram showing experimental results of beta values (beta0, beta1) in the VC model among carbon dioxide emission estimation models, and FIG. 5 is a diagram showing experimental results of carbon dioxide emission according to engine load.

In an embodiment of the present application, the carbon dioxide emission calculation unit 135 (see FIG. 2 ) may control carbon dioxide emission using either a VC model or an interaction linear model.

For example, in the case of the VC model, it can be calculated by the following formula.

For example, in the case of an interaction linear model, it can be calculated by the following formula.

6 is a diagram showing an example of a screen displayed by the display unit 140 of FIG. 2 . In FIG. 6, an example of a case where the user selects the economic operation-plow work mode is shown.

As shown in FIG. 6 , the carbon dioxide emission control device 100 of the present application can visually provide information on carbon dioxide emission as well as fuel consumption of the tractor in operation to the user. Accordingly, it is possible to help the user easily grasp fuel consumption and carbon dioxide emission of the tractor currently in operation, and as a result, fuel consumption and carbon dioxide emission can be effectively suppressed.

As described through FIGS. 1 to 6, the agricultural work vehicle 10 according to the embodiment of the present application includes a carbon dioxide emission control device 100, and the carbon dioxide emission control device 100 is an engine according to a work mode. Rotational speed and/or working speed can be controlled. Accordingly, not only fuel consumption can be greatly reduced, but also greenhouse gas emissions such as carbon dioxide can be minimized.

However, it will be understood that the above description is exemplary, and the embodiments of the present application are not limited thereto. Hereinafter, other embodiments of the present application based on the technical spirit of the present application will be exemplarily described.

7 is a view showing a carbon dioxide emission control device 200 according to another embodiment of the present application. The carbon dioxide emission control device 200 of FIG. 7 is similar to the carbon dioxide emission control device 100 of FIG. 2 . Accordingly, identical or similar elements are indicated as identical or similar elements, and repeated descriptions for brevity will be described below.

Referring to FIG. 7 , the carbon dioxide emission control device 200 includes a work mode selector 210, an information receiver 220, a control unit 230, and a display unit 240. The information receiving unit 220 includes a maximum working speed receiving unit 221, a basic tractor information receiving unit 222, and a tractor usage information receiving unit 223. The control unit 230 includes a target engine rotation speed setting unit 231, an engine power calculation unit 233, an operation availability determination unit 234, and a carbon dioxide emission calculation unit 235.

The control unit 230 of the carbon dioxide emission control device 200 of FIG. 7 does not include a target working speed setting unit 132 (see FIG. 2). That is, the carbon dioxide emission control device 200 of FIG. 7 controls only the engine rotation speed without separately setting a target working speed. Accordingly, fuel consumption and carbon dioxide emission may be reduced, and control and calculation speed of the controller 230 may be improved.

8 is a flowchart showing the operation of the carbon dioxide emission control device 200 of FIG. 7 .

In step S210, a work mode supporting economic driving may be selected.

In step S220, maximum torque (Tm) information of the tractor (10, see FIG. 1) may be received.

In step S230, engine rotation speed (Rm) information corresponding to the maximum torque of the tractor 10 may be received.

In step S240, information on a maximum working speed (Vm) corresponding to the selected target working mode may be received.

In step S250, the target engine rotation speed Rt may be set based on the engine rotation speed Rm corresponding to the maximum torque.

In step S270, the target engine output Wt may be calculated based on the maximum torque Tm and the target engine rotational speed Rt.

In step S280 , information on used engine torque (Tu), used engine rotational speed (Ru), used engine output (Wu), used engine load factor, and fuel consumption may be received.

In step S281, it may be determined whether the used engine load factor is lower than the target engine load factor.

If the used engine load rate is higher than the target engine load rate, the workability determination unit 234 may determine an overpowered state. In this case, the target engine rotation speed setting unit 231 may reset the target engine rotation speed Rt based on the determination result of the workability determination unit 234 . If the used engine load factor is lower than the target engine load factor, step S282 is performed.

In step S282, the workability determination unit 234 may determine whether the used engine power (Wu) is lower than the target engine power (Wt).

If the used engine power (Wu) is higher than the target engine power (Wt), the workability determination unit 234 may determine an overpowered state. In this case, the target engine rotation speed setting unit 231 may reset the target engine rotation speed Rt based on the determination result of the workability determination unit 134 . If the used engine power is lower than the target engine power, step S290 is performed.

In step S290, information on the amount of carbon dioxide emitted is calculated, and the corresponding information can be displayed to the user.

As described above, the carbon dioxide emission control device 200 according to the exemplary embodiment of the present application can properly control the engine load factor and engine output by controlling the engine rotation speed according to the work mode. Accordingly, not only fuel consumption can be greatly reduced, but also greenhouse gas emissions such as carbon dioxide can be minimized.

In addition, since only the engine rotation speed is controlled without separately setting a target working speed, the calculation speed can be improved.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are for explanation, not for limiting the technical idea of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments.

Therefore, the protection scope of the present invention should be construed by the claims below rather than being limited by the foregoing embodiments, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: Tractor
100: carbon dioxide emission control device
110: work mode selection unit
120: information receiver
121: maximum working speed receiver
122: tractor basic information receiver
123: Tractor usage information receiver
130: control unit
131: target engine rotation speed setting unit
132: target work speed setting unit
133: engine power calculation unit
134: workability determination unit
135: carbon dioxide emission calculation unit
140: display unit

Claims (22)

a work mode selection unit that selects a work mode of the tractor;
an information receiver configured to receive at least one of the work mode information selected by the work mode selector, basic information of the tractor, and use information of the tractor; and
Based on the basic information of the tractor and the usage information of the tractor, a control unit for setting a target engine speed and a target working speed so that the operation selected by the operation mode selection unit can be performed,
When it is determined that the target engine speed and the target working speed are inappropriate for the selected work, the control unit adjusts and resets the target engine speed or the target working speed. According to claim 1,
The information receiving unit includes a maximum working speed receiving unit for receiving the highest working speed information corresponding to the working mode selected by the working mode selection unit, carbon dioxide emission control device for an agricultural work vehicle. According to claim 2,
The information receiver
Further comprising a tractor basic information receiving unit for receiving maximum torque information on the model of the tractor and engine rotation speed information corresponding to the maximum torque, carbon dioxide emission control device for an agricultural work vehicle. According to claim 3,
The information receiving unit further comprises a tractor usage information receiving unit for receiving at least one of engine torque information, engine rotation speed information, engine power information, engine load factor information, and fuel consumption information of the tractor. Carbon dioxide emission control device. According to claim 4,
The tractor is equipped with a Tier-4 engine, and the tractor usage information receiving unit among information on engine torque used, engine speed information used, engine output information used, engine load factor information used, and fuel consumption information of the tractor through CAN communication. Receiving at least one carbon dioxide emission control device for an agricultural work vehicle. According to claim 4,
The control unit includes a target engine rotation speed setting unit for setting a target engine rotation speed based on the engine rotation speed corresponding to the maximum torque, carbon dioxide emission control device for an agricultural work vehicle. According to claim 6,
The target engine rotation speed setting unit sets the target engine rotation speed to sequentially decrease, the carbon dioxide emission control device of the agricultural work vehicle. According to claim 7,
The target engine rotation speed setting unit sets the initial target engine rotation speed so that the initial target engine rotation speed is greater than the engine rotation speed corresponding to the maximum torque, the carbon dioxide emission control device of the agricultural work vehicle. According to claim 6,
The control unit further comprises a target working speed setting unit for setting a target working speed based on the maximum working speed, carbon dioxide emission control device for an agricultural work vehicle. According to claim 9,
The target working speed setting unit sets the initial target working speed to be equal to or lower than the maximum working speed, carbon dioxide emission control device for an agricultural work vehicle. According to claim 9,
Wherein the control unit further comprises an engine power calculation unit for calculating a target engine power based on the maximum torque and the target engine rotational speed. According to claim 11,
The controller further comprises a workability determination unit for determining whether economic driving is appropriate based on a comparison result between the used engine load rate and the target engine load rate, the carbon dioxide emission control device of the agricultural work vehicle. According to claim 12,
Wherein the workability determination unit further determines whether economic driving is appropriate based on a comparison result between the engine power used and the target engine power, the carbon dioxide emission control device of the agricultural work vehicle. According to claim 12,
The control unit further comprises a carbon dioxide emission calculation unit for calculating the carbon dioxide emission based on the target engine rotation speed, the carbon dioxide emission control device of the agricultural work vehicle. According to claim 14,
The carbon dioxide emission control device of the agricultural work vehicle, wherein the carbon dioxide emission calculation unit calculates the carbon dioxide emission based on the following formula.

According to claim 14,
The carbon dioxide emission control device of the agricultural work vehicle, wherein the carbon dioxide emission calculation unit calculates the carbon dioxide emission based on the following formula.

As an agricultural work vehicle,
The agricultural work vehicle includes a carbon dioxide emission control device, and the carbon dioxide emission control device includes,
a work mode selection unit that selects a work mode of the tractor;
an information receiver configured to receive at least one of the work mode information selected by the work mode selector, basic information of the tractor, and use information of the tractor; and
Based on the basic information of the tractor and the usage information of the tractor, a control unit for setting a target engine speed or a target working speed so that the operation selected by the operation mode selection unit can be performed,
When it is determined that the target engine speed and the target working speed are inappropriate for the selected work, the control unit reduces and resets the target engine speed or the target working speed. According to claim 17,
The agricultural work vehicle is a tractor equipped with a Tier-4 engine, an agricultural work vehicle. Selecting the work mode of the tractor by the work mode selection unit;
Receiving the maximum torque information of the tractor by the information receiving unit;
Receiving engine rotational speed information corresponding to the maximum torque of the tractor by the information receiver;
receiving, by the information receiving unit, maximum working speed information corresponding to the working mode selected by the working mode selection unit;
Setting a target engine rotation speed based on engine rotation speed information corresponding to the maximum torque by a control unit;
calculating, by the control unit, a target engine output based on the maximum torque information and the target engine speed information;
receiving, by the information receiver, at least one of engine torque, engine rotation speed, engine power, engine load factor, and fuel consumption information;
determining, by the control unit, whether the used engine load rate is lower than a target engine load rate; and
A method for controlling carbon dioxide emissions of an agricultural work vehicle, comprising the step of calculating, by the control unit, information on the amount of carbon dioxide emissions. According to claim 19,
If the used engine load rate is higher than the target engine load rate, the controller resets the target engine rotational speed. According to claim 20,
If the used engine power is higher than the target engine power, the control unit resets the target engine rotational speed. As a method of operating an agricultural work vehicle,
The agricultural work vehicle includes a carbon dioxide emission control device, and the carbon dioxide emission control device includes a work mode selection unit, an information reception unit, and a control unit,
Selecting the work mode of the tractor by the work mode selector;
Receiving the maximum torque information of the tractor by the information receiver;
Receiving engine rotational speed information corresponding to the maximum torque of the tractor by the information receiver;
receiving, by the information receiving unit, maximum working speed information corresponding to the working mode selected by the working mode selection unit;
setting, by the control unit, a target engine rotation speed based on engine rotation speed information corresponding to the maximum torque;
Setting, by the control unit, a target working speed based on the maximum working speed and the target engine speed;
calculating, by the control unit, a target engine output based on the maximum torque information and the target engine speed information;
receiving, by the information receiver, at least one of engine torque, engine rotation speed, engine power, engine load factor, and fuel consumption information;
determining, by the control unit, whether the used engine load rate is lower than a target engine load rate; and
A method of operating an agricultural work vehicle comprising the step of calculating, by the control unit, information on carbon dioxide emissions.

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