KR20190005086A - Simulation method of electricity generation of agricultural electric vehicles - Google Patents

Abstract

The present invention relates to a simulation method of electricity generation of an agricultural electric vehicle, and more specifically, to a simulation method of electricity generation of an agricultural electric vehicle, which is for simulating the driving of a generator installed in an agricultural electric vehicle connected with a functional unit using an electric power takeoff to provide electric power. The simulation method of electricity generation of an agricultural electric vehicle comprises the steps of: a) selecting a simulation mode of the agricultural electric vehicle; b) setting an average consumption amount and a remaining battery amount, and calculating an initial electricity generation amount according to the selected simulation mode; c) comparing the calculated initial electricity generation amount to the remaining battery amount to determine whether to generate electricity; and d) obtaining result data according to the electricity generation.

Description

TECHNICAL FIELD [0001] The present invention relates to a simulation method for generating electricity for an agricultural electric vehicle,

The present invention relates to a power generation simulation method for an agricultural electric vehicle, and more particularly, to a power generation simulator for an agricultural electric vehicle for simulating the operation of a generator installed in an agricultural electric vehicle in which functional units using an electric power take- And a method of simulating power generation of a vehicle.

Generally, electric vehicles are being actively developed as new transportation means not only solving pollution problems such as noise and exhaust gas of automobiles but also effectively utilizing surplus electric power in relation to energy saving. In the field of electric vehicle battery, many electric parts such as BMS (Battery Management System) have been actively studied in connection with electric vehicles. However, There is a problem in that it can not be sufficiently replaced with a small capacity battery as the usage is increased

In recent years, equipment such as an electric vehicle or an electric tractor has been developed for use in agriculture, and a method of reusing a battery pack mounted on the electric vehicle by replacing with a new charged battery pack or recharging it after charging for a predetermined time has been studied.

Since the amount of the battery is insufficient in the agricultural electric vehicle, the development of the electric power generation technology for preventing the battery from discharging during traveling has been made at the same time.

However, since the electric power of the battery of the agricultural electric vehicle thus prepared is used not only for driving but also for functional units such as pesticide spraying apparatuses, electric power consumption Is different.

Conventionally, since power generation start timing is determined in consideration of only the amount of power consumption during driving when performing power generation to prevent discharge of the battery of the agricultural electric vehicle, the average consumption amount due to the increase in power consumption when the functional unit is used The amount of electricity generated is larger than the amount of electricity that can be generated, thereby causing discharge of the battery.

Therefore, there is a need for a method for predicting the battery consumption of the agricultural electric vehicle more accurately and knowing the operation extension time of the vehicle more accurately. However, when a generator is mounted on an actual vehicle and the operation extension time of the agricultural electric vehicle is measured, there is a problem that the cost is large and the energy is wasted, so that it is difficult to know the accurate operation extension time.

Therefore, there is a need for a simulation method for knowing the operation extension time of an agricultural electric vehicle in a more accurate and economical manner.

Korean Patent Publication No. 10-2013-0073310

In order to solve the above problems, an object of the present invention is to provide a method of simulating a power generation simulation of an agricultural electric vehicle for simulating the operation of a generator installed in an agricultural electric vehicle in which functional units using an electric power take- .

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to another aspect of the present invention, there is provided a method of generating electricity for an agricultural electric vehicle, the method comprising the steps of: a) selecting a simulation mode of the agricultural electric vehicle; b) setting an average consumption amount and a remaining battery amount, and calculating a power generation start amount according to the selected simulation mode; c) comparing the calculated power generation start amount with a remaining battery amount to determine whether to generate power; And d) obtaining result data according to the power generation status.

In the embodiment of the present invention, in the step a), the simulation mode may include a virtual driving mode selected when the agricultural electric vehicle is a driving signal and a virtual working mode selected when the functional unit connected to the agricultural electric vehicle is an operation signal And a control unit.

In the embodiment of the present invention, the step b) includes the steps of: b1) setting an average consumption amount of power and a remaining battery amount; And b2) comparing the average consumption amount with an average power generation amount; and b3) calculating the power generation start amount.

In the embodiment of the present invention, when the virtual driving mode is selected in the step a), the average consumption amount of the step b1) is a long term average consumption amount calculated from the start of running of the agricultural electric vehicle, .

In the embodiment of the present invention, in the step b3), when the long-term average consumption amount in the step b2) is larger than the average generation amount, the generation start amount is a generation start amount = (long term average consumption amount - average generation amount) Generator operating time x fuel + limit remaining amount is determined by the above equation.

In the embodiment of the present invention, in the step b3), when the long-term average consumption amount in the step b2) is smaller than the average generation amount, the generation start amount is set to a value when the remaining battery amount is 15 to 25% Is determined.

In the embodiment of the present invention, when the virtual work mode is selected in the step a), the average consumption amount of the step b1) is calculated by calculating the amount of power consumption per time from the time when the functional unit connected to the agricultural electric vehicle is operated And a short-term average consumption amount.

In the embodiment of the present invention, in the step b3), when the short-term average consumption amount is larger than the average generation amount in the step b2), the power generation start amount is a power generation start amount = (short term average consumption amount - average power generation amount) Generator operating time x fuel + limit remaining amount is determined by the above equation.

In the embodiment of the present invention, in the step b3), when the short-term average consumption amount is smaller than the average generation amount in the step b2), the generation start amount is set to a value when the remaining battery amount is 60 to 80% Is determined.

In the embodiment of the present invention, in the step b), the simulation mode further includes a virtual discharge mode, and the power generation start amount of the virtual discharge mode is set to a value when the remaining battery amount is 20 to 50% Is determined.

In the embodiment of the present invention, in the step (c), power generation is started when the calculated power generation start amount is equal to or less than the remaining battery amount.

In an embodiment of the present invention, in the step d), the result data may include an operation extension time.

According to an aspect of the present invention, there is provided a power generation control method for an agricultural electric vehicle to which a power generation simulation method for an agricultural electric vehicle is applied.

According to an aspect of the present invention, there is provided an agricultural electric vehicle to which a power generation simulation method for an agricultural electric vehicle is applied.

The effect of the present invention with the above-described configuration can accurately estimate the operation extension time by an economical method by simulating the remaining battery amount and the average consumption amount in the same manner as the actual conditions.

The generation start timing of the battery of the agricultural electric vehicle can be precisely calculated to prevent the discharge of the battery and the generator can be efficiently used. That is, when there is a risk of discharge of the battery, the power generation is performed, so that the fuel of the generator can be efficiently used.

Further, according to the present invention, efficient power generation control is possible by performing power generation control corresponding to the traveling mode and the working mode of the agricultural electric vehicle.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a flowchart of a power generation simulation method for an agricultural electric vehicle according to an embodiment of the present invention.
Fig. 2 is a flowchart of a step of calculating a power generation start amount of a power generation simulation method for an agricultural electric vehicle according to an embodiment of the present invention.
3 is a flowchart of a power generation control method for an agricultural electric vehicle according to an embodiment of the present invention.
4 is a flow chart of a step of calculating a power generation start amount of a power generation control method for an agricultural electric vehicle according to an embodiment of the present invention.
FIG. 5 is a graph showing a remaining battery amount with time according to each power generation mode according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart of a power generation simulation method for an agricultural electric vehicle according to an embodiment of the present invention.

As shown in FIG. 1, a method of generating electricity for an agricultural electric vehicle includes the steps of selecting a simulation mode of the agricultural electric vehicle (S10), setting an average consumption amount and a remaining battery amount, (S30) of determining whether to generate power by comparing the calculated power generation start amount with a remaining battery power (S30), and obtaining result data according to the power generation status (S40).

Wherein the simulation mode includes a virtual driving mode selected when the agricultural electric vehicle is a driving signal and a virtual driving mode selected when the functional unit connected to the agricultural electric vehicle is an operation signal And may include a mode of operation.

The virtual operation mode can be selected when the functional unit of the agricultural electric vehicle is an operation signal connected by an electric power take-off device (EPTO) or the like.

The simulation mode may further include a virtual discharge mode, and the virtual discharge mode may be selected to prevent discharge of the battery of the agricultural electric vehicle.

After the step S10 of selecting the simulation mode of the agricultural electric vehicle, the average consumption amount and the remaining battery amount are set, and the step S20 of calculating the generation start amount according to the selected simulation mode may be performed.

Fig. 2 is a flowchart of a step of calculating a power generation start amount of a power generation simulation method for an agricultural electric vehicle according to an embodiment of the present invention.

2, setting the average consumed amount and the remaining battery amount, and calculating the power generation start amount according to the selected simulation mode (S 20) includes setting an average consumed amount of power and a remaining battery amount (S 21) A step (S22) of comparing the average consumption amount with an average power generation amount, and a step (S23) of calculating the power generation start amount.

The step S21 of setting the average consumption amount of power and the remaining battery amount may set the average consumption amount and the remaining battery amount so as to correspond to the actual conditions.

Specifically, when the virtual driving mode is selected in the step S10 of selecting the simulation mode of the agricultural electric vehicle, the average consumption amount is calculated by calculating the electric power consumption per hour from the start of driving of the agricultural electric vehicle And a long-term average consumption amount.

The long term average consumption amount can be determined by the following equation.

Long-term average consumption amount = (initial battery level - current battery level) / operation time

Here, the amount of battery at the beginning of travel refers to the amount of battery when the agricultural electric vehicle starts running and starts running. And, the present battery amount means the present remaining battery amount. The operation time at the long-term average consumption amount means the time elapsed from the moment when the agricultural electric vehicle started running to the present time.

As described above, the step S21 of setting the average consumed amount of power and the remaining amount of battery can arbitrarily set the remaining battery amount and the long term average consumption amount by controlling the signal with respect to the battery amount. That is, the remaining battery amount and the long term average consumption amount may be set to be equal to actual conditions.

Next, in the step (S10) of selecting the simulation mode of the agricultural electric vehicle, when the virtual work mode is selected, the average consumption amount is calculated by calculating the power consumption per hour from the time when the functional unit connected to the agricultural electric vehicle is operated And a short-term average consumption amount.

Specifically, the short-term average consumption amount can be determined by the following formula.

Short-term average consumption amount = (initial battery capacity - current battery capacity) / operation time

Here, the operation initial battery amount refers to the amount of the battery when the functional unit connected to the agricultural electric vehicle is operated. And, the present battery amount means the present remaining battery amount. The operation time at the short term average consumption amount means the time elapsed from the moment the functional unit is operated until the present time.

As described above, the step S21 of setting the average consumption amount of the power and the remaining battery amount may arbitrarily set the remaining battery amount and the short term average consumption amount by controlling the signal with respect to the battery amount. That is, the present invention can arbitrarily set the remaining battery amount and the long term average consumption amount to be equal to the actual conditions by controlling the signal of the battery amount.

The step S22 of comparing the average consumption amount and the average generation amount performed after the step S21 of setting the average consumption amount of the electric power and the remaining battery amount is performed in the step S21 of setting the average consumption amount of the electric power and the remaining battery amount And may be configured to compare the set average consumption amount with the average generation amount of the generator.

Specifically, in the step S10 of selecting the simulation mode of the agricultural electric vehicle, when the virtual running mode is selected, the long term average consumption amount and the average generation amount can be compared. If the virtual work mode is selected, And the average power generation amount.

After the step S22 of comparing the average consumption amount with the average power generation amount, the step S23 of calculating the power generation start amount may be performed.

First, when the virtual running mode is selected, the step of calculating the power generation start amount (S23) can compare the average power generation amount with the long term average consumption amount in the step S22 of comparing the average power generation amount with the average power generation amount. And, when the long-term average consumption amount is larger than the average generation amount, the generation start amount can be determined by the following equation.

Generation start amount = (long term average consumption amount - average generation amount) × generator start time × fuel + limit remaining amount

Here, the generator operation time means a time when the generator can be operated, and the fuel is a value indicating the fuel amount in%. The fuel amount may be arbitrarily set in the step of setting the average consumption amount of power and the remaining battery amount (S21).

The limit remaining amount means a limit value of the remaining battery amount at which power generation is to be started, and may be determined as a limit value to prevent degradation of the performance of the battery. Specifically, when the remaining battery capacity of the battery falls below a certain level, the performance of the battery may deteriorate. Therefore, the limit remaining amount is set to a battery amount for preventing the performance of the battery from deteriorating, so that the power generation start amount can be determined at least above the limit remaining amount.

Further, when the long-term average consumption amount is smaller than the average generation amount, the power generation start amount may be set to the limit remaining amount. Specifically, the marginal residual amount is set when the remaining battery amount is 15 to 25% of the total battery amount, and the generation start amount can be determined when the remaining battery amount is 15 to 25% of the total battery amount.

Next, when the virtual work mode is selected, the step of calculating the power generation start amount (S123) can compare the average power generation amount with the short term average consumption amount in the step S122 of comparing the average power generation amount with the average power generation amount. When the short-term average consumption amount is larger than the average generation amount, the generation start amount can be determined by the following formula.

Generation start amount = (short term average consumption amount - average generation amount) × generator start time × fuel + limit remaining amount

Here, the generator operation time means a time when the generator can be operated, and the fuel is a value indicating the fuel amount in%. The fuel amount may be arbitrarily set in the step of setting the average consumption amount of power and the remaining battery amount (S21).

Here, the limit remaining amount refers to a limit value of the remaining battery amount at which power generation is to be started. In the virtual operation mode, since the battery consumption amount is rapidly increased by the functional unit, the limit remaining amount is set to be higher than the virtual running mode .

Further, when the short-term average consumption amount is smaller than the average generation amount, the power generation start amount may be set to the limit remaining amount. Specifically, the marginal residual amount is set when the remaining battery amount is 60 to 80% of the total battery amount, and the generation start amount can be determined when the remaining battery amount is 60 to 80% of the total battery amount.

Next, when the virtual discharge mode is selected, the power generation start amount in the step S23 of calculating the power generation start amount may be determined when the remaining battery amount is 20 to 50% of the total battery amount.

(S20) after calculating the average power consumption and the remaining battery power and calculating the power generation start amount according to the selected simulation mode, determining whether to generate power by comparing the calculated power generation start amount with the remaining battery power (S30 ) Can be performed.

More specifically, the step S30 of determining whether to generate power by comparing the calculated power generation start amount with the remaining battery power may be such that power generation is started when the calculated power generation start amount is equal to or less than the remaining battery amount.

After the step S30 of determining whether the power generation is started by comparing the calculated power generation start amount with the remaining battery power, step S40 of obtaining result data according to the power generation status may be performed.

In the step S40 of obtaining the result data according to the power generation status, the result data may include an operation extension time. That is, in step S40 of obtaining the result data according to the power generation status, the result data can be obtained according to the simulation mode, the average consumption amount, the remaining battery amount, and the like.

According to the present invention, it is possible to accurately predict the operation time according to each simulation mode and the average consumption amount by controlling the signal on the battery amount, which is economical.

Particularly, in the case of the virtual operation mode, a large difference in operation time may occur depending on the power consumption of the functional unit to be connected. The present invention can accurately measure the operating time under the same condition as the actual situation by arbitrarily setting the average consumption amount by adjusting the battery amount to correspond to the power consumption amount of the functional unit.

Hereinafter, a power generation control method for an agricultural electric vehicle will be described in detail.

3 is a flowchart of a power generation control method for an agricultural electric vehicle according to an embodiment of the present invention.

3, the power generation control method for an agricultural electric vehicle includes a step S110 of selecting a power generation mode of the agricultural electric vehicle, a step S120 of calculating a power generation start amount according to the selected power generation mode, (S110) of determining whether or not to generate power by comparing the amount of power generation start and a remaining battery amount, wherein the step of selecting a power generation mode of the agricultural electric vehicle (S110) The step of determining whether to generate electricity by comparing (S130) may be repeated in sequence.

In the step S110 of selecting the power generation mode of the agricultural electric vehicle, the power generation mode includes a driving mode selected at the time of driving the agricultural electric vehicle and a working mode selected when the functional unit connected to the agricultural electric vehicle is selected .

Specifically, the agricultural electric vehicle can be automatically or manually selected in the running mode from when the agricultural electric vehicle is started.

The operation mode can be selected automatically or manually when the functional unit is connected to the agricultural electric vehicle by an electric power take-off device (EPTO) or the like. Here, the operation mode may include both when the agricultural electric vehicle is in a stopped state as well as when it is in a running state, if the functional unit is in operation.

The power generation mode may further include a discharge mode, and the discharge mode may be manually set to prevent discharging of the battery of the agricultural electric vehicle. However, it does not exclude that the discharge mode is automatically selected.

After the step S110 of selecting the power generation mode of the agricultural electric vehicle, a step S120 of calculating the power generation start amount according to the selected power generation mode may be performed.

4 is a flow chart of a step of calculating a power generation start amount of a power generation control method for an agricultural electric vehicle according to an embodiment of the present invention.

4, the step S120 of calculating the power generation start amount according to the selected power generation mode includes a step S121 of calculating an average consumption amount of power, a step S122 of comparing the average consumption amount with an average power generation amount, And calculating the power generation start amount (S123).

The step S121 of calculating the average consumption amount of electric power can calculate the average consumption amount in accordance with the power generation mode selected in the step S110 for selecting the power generation mode of the agricultural electric vehicle.

First, in the step S110 of selecting the power generation mode of the agricultural electric vehicle, when the traveling mode is selected, the average consumption amount is a long-term average consumption amount calculated from the start of running of the agricultural electric vehicle, . ≪ / RTI >

Specifically, the long term average consumption amount can be determined by the following equation.

Long-term average consumption amount = (initial battery level - current battery level) / operation time

Here, the amount of battery at the beginning of travel refers to the amount of battery when the agricultural electric vehicle starts running and starts running. And, the present battery amount means the present remaining battery amount. The operation time at the long-term average consumption amount means the time elapsed from the moment when the agricultural electric vehicle started running to the present time.

First, in the step S110 of selecting the generation mode of the agricultural electric vehicle, when the operation mode is selected, the average consumption amount is calculated by calculating the amount of electric power consumption per hour from the time when the functional unit connected to the agricultural electric vehicle is operated And a short-term average consumption amount.

Specifically, the short-term average consumption amount can be determined by the following formula.

Short-term average consumption amount = (initial battery capacity - current battery capacity) / operation time

Here, the operation initial battery amount refers to the amount of the battery when the functional unit connected to the agricultural electric vehicle is operated. And, the present battery amount means the present remaining battery amount. The operation time at the short term average consumption amount means the time elapsed from the moment the functional unit is operated until the present time.

In the operation mode, since the power consumption rapidly increases, it is necessary to quickly calculate the short-term average consumption amount. Accordingly, the operation time for obtaining the short-term average consumption amount may be an interval of 5 minutes to 10 minutes. If the operation time for obtaining the short-term average consumption amount is less than 5 minutes, it is difficult to obtain an accurate average value. If the operation time exceeds 10 minutes, the power generation start amount can not be obtained quickly, and the battery may be discharged before power generation is performed .

The step S122 of comparing the average consumption amount and the average generation amount performed after the step S121 of calculating the average consumption amount of electric power includes a step S121 of calculating the average consumption amount of electric power, And can be prepared to compare the power generation amount.

Specifically, when the traveling mode is selected in the step S110 of selecting the generation mode of the agricultural electric vehicle, the long-term average consumption amount and the average generation amount can be compared. If the operation mode is selected, The average power generation amount can be compared.

After the step S122 of comparing the average consumption amount with the average generation amount, a step S123 of calculating the power generation start amount may be performed.

First, when the running mode is selected, the step of calculating the power generation start amount (S123) can compare the average power generation amount with the average long term average consumption amount in the step S122 of comparing the average power generation amount with the average power generation amount. And, when the long-term average consumption amount is larger than the average generation amount, the generation start amount can be determined by the following equation.

Generation start amount = (long term average consumption amount - average generation amount) × generator start time × fuel + limit remaining amount

Here, the generator operation time means a time when the generator can be operated, and the fuel is a value indicating the fuel amount in%.

The limit remaining amount means a limit value of the remaining battery amount at which power generation is to be started, and may be determined as a limit value to prevent degradation of the performance of the battery. Specifically, when the remaining battery capacity of the battery falls below a certain level, the performance of the battery may deteriorate. Therefore, the limit remaining amount is set to a battery amount for preventing the performance of the battery from deteriorating, so that the power generation start amount can be determined at least above the limit remaining amount.

Further, when the long-term average consumption amount is smaller than the average generation amount, the power generation start amount may be set to the limit remaining amount. Specifically, the marginal residual amount is set when the remaining battery amount is 15 to 25% of the total battery amount, and the generation start amount can be determined when the remaining battery amount is 15 to 25% of the total battery amount.

Next, when the operation mode is selected, the step of calculating the power generation start amount (S123) can compare the average power generation amount with the short term average consumption amount in the step S122 of comparing the average power generation amount with the average power generation amount. When the short-term average consumption amount is larger than the average generation amount, the generation start amount can be determined by the following formula.

Generation start amount = (short term average consumption amount - average generation amount) × generator start time × fuel + limit remaining amount

Here, the generator operation time means a time when the generator can be operated, and the fuel is a value indicating the fuel amount in%.

Here, the limit remaining amount means a limit value of the remaining battery amount at which power generation is to be started. In the case of the operation mode, since the battery consumption amount is rapidly increased by the functional unit, have.

Further, when the short-term average consumption amount is smaller than the average generation amount, the power generation start amount may be set to the limit remaining amount. Specifically, the marginal residual amount is set when the remaining battery amount is 60 to 80% of the total battery amount, and the generation start amount can be determined when the remaining battery amount is 60 to 80% of the total battery amount.

Next, when the discharge mode is selected, the power generation start amount in the step S123 of calculating the power generation start amount may be determined when the remaining battery amount is 20 to 50% of the total battery amount.

After the step S120 of calculating the power generation start amount according to the selected power generation mode, step S130 of comparing the calculated power generation start amount and the remaining battery power to determine whether to generate power may be performed.

More specifically, the step S130 of determining whether to generate power by comparing the calculated power generation start amount with the remaining battery power may be such that power generation is started when the calculated power generation start amount is equal to or less than the remaining battery amount. If the power generation start amount is greater than the remaining battery power, the power generation mode of the agricultural electric vehicle may be selected (S110) without performing power generation.

FIG. 5 is a graph illustrating a remaining battery amount according to a power generation mode according to an exemplary embodiment of the present invention. Referring to FIG.

FIG. 5A is a graph showing the amount of remaining battery with time in the traveling mode, and a red line is a graph showing when the long-term average consumption amount is larger than the average generation amount. And FIG.

5 (a), when the long term average consumption amount is larger than the average generation amount, the remaining battery amount continues to decrease even if the power generation starts, and when the long term average consumption amount is smaller than the average generation amount, the remaining battery amount temporarily increases .

As described above, when the power generation is controlled by applying the traveling mode, the time for which the remaining battery amount of the agricultural electric vehicle falls below the limit remaining amount can be minimized, and efficient fuel use is possible.

For example, when the total electric capacity of the agricultural electric vehicle is 10000 W and the limited residual electric power is 2000 W, the electric power generation starting amount of the agricultural electric vehicle is determined to be 2000 W or more, so that it is possible to minimize the remaining battery power to fall below the limit.

However, if the amount of power generation is determined without considering such a limited residual amount, the following problems may arise.

First, when the generation start amount is determined to be less than the limit remaining amount, if the average consumption amount is larger than the average generation amount, the battery may be discharged even though the remaining battery amount is abruptly decreased and fuel still remains.

In addition, when the amount of the remaining battery is greater than the predetermined value, the amount of fuel to be generated may be wasted if the amount of power generation start is determined. For example, when the total electric capacity of the agricultural electric vehicle is 10000W, the limit residual amount is 2000W, and the total amount of the battery used for driving is 6000W, the remaining battery amount is 4000W. In this case, since the battery needs to be charged with a separate charging device after the running is completed, it is not necessary to perform the power generation using the fuel.

However, when the power generation start amount is set to 5000 W, it is necessary to perform power generation unnecessarily by using the fuel even though the possibility of affecting the performance of the battery is small.

Therefore, the running mode according to the present invention can prevent the degradation of the performance of the battery and determine the amount of power generation start so that the fuel can be efficiently used.

FIG. 5 (b) shows the amount of remaining battery with time in the operation mode, and the red line shows a graph when the short term average consumption amount is larger than the average generation amount, and the blue line shows the short term average consumption amount And FIG.

5 (b), when the short-term average consumption amount is larger than the average generation amount, even if the power generation starts, the remaining battery amount continues to decrease. When the short-term average consumption amount is smaller than the average generation amount, the remaining battery amount temporarily increases .

As described above, when the power generation is controlled by applying the working mode, the time when the remaining battery amount of the agricultural electric vehicle falls below the limit residual amount can be minimized.

Particularly, in the operation mode, it is understood that the marginal residual amount is set to be high considering the amount of the battery which is rapidly reduced by the functional unit consuming a lot of power.

5 (c) shows the remaining battery amount with time in the discharge mode.

As shown in (c) of FIG. 5, in the discharge mode, the generation start amount may be set to 20 to 50% so that the battery of the agricultural electric vehicle is not discharged. Such a discharge mode can be selected to be performed according to the remaining battery amount irrespective of the average consumption amount and the magnitude of the power generation amount.

As described above, since the present invention controls power generation according to the working state of the agricultural electric vehicle, even when the functional unit is connected to the agricultural electric vehicle, the power generation start amount is determined in consideration of the power consumption due to the connection of the functional unit It is possible to prevent the battery from being discharged.

Further, since the present invention determines an optimal amount of power generation start-up in conjunction with an average consumption amount of continuously changing batteries, power generation can be actively controlled. That is, since the present invention determines power generation start amounts in correspondence with functional units having different power consumption amounts, active power generation control is possible.

The power generation control method of the agricultural electric vehicle thus prepared can be applied to agricultural electric vehicles and agricultural power generators.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

Claims (14)

A method for simulating power generation of an agricultural electric vehicle,
a) selecting a simulation mode of the agricultural electric vehicle;
b) setting an average consumption amount and a remaining battery amount, and calculating a power generation start amount according to the selected simulation mode;
c) comparing the calculated power generation start amount with a remaining battery amount to determine whether to generate power; And
and d) obtaining result data according to the power generation status. The method according to claim 1,
In the step a)
Wherein the simulation mode includes a virtual driving mode selected when the agricultural electric vehicle is a driving signal and a virtual working mode selected when the functional unit connected to the agricultural electric vehicle is an operation signal . The method according to claim 1,
The step b)
b1) setting an average consumption amount of power and a remaining battery amount; And
b2) comparing the average consumption amount with an average power generation amount;
and b3) calculating the power generation start amount. The method of claim 3,
When the virtual driving mode is selected in the step a), the average consumption amount of the step b1)
Wherein the long term average consumption amount is a long term average consumption amount calculated by calculating the amount of power consumption per hour from the start of running of the agricultural electric vehicle. 5. The method of claim 4,
The step b3)
When the long term average consumption amount in the step b2) is larger than the average power generation amount,
The power generation start-
Generation start amount = (long term average consumption amount - average generation amount) × generator start time × fuel + limit remaining amount
Wherein the power consumption is determined by the above equation. 5. The method of claim 4,
The step b3)
When the long term average consumption amount in the step b2) is smaller than the average generation amount,
Wherein the power generation start amount is determined when the remaining battery amount is 15 to 25% of the total battery amount. The method of claim 3,
When the virtual work mode is selected in the step a), the average consumption amount of the step b1)
Wherein the short term average consumption amount is a short term average consumption amount calculated by calculating a power consumption amount per time from a time when the functional unit connected to the agricultural electric vehicle is operated. 8. The method of claim 7,
The step b3)
When the short-term average consumption amount is greater than the average power generation amount in the step b2)
The power generation start-
Generation start amount = (short term average consumption amount - average generation amount) × generator start time × fuel + limit remaining amount
Wherein the power consumption is determined by the above equation. 8. The method of claim 7,
The step b3)
If the short-term average consumption amount is smaller than the average power generation amount in step b2)
Wherein the power generation start amount is determined when the remaining battery amount is 60 to 80% of the total battery amount. 3. The method of claim 2,
In the step b)
The simulation mode further includes a virtual discharge mode,
Wherein the power generation start amount of the virtual discharge mode is determined when the remaining battery amount is 20 to 50% of the total battery amount. The method according to claim 1,
The step c)
And when the calculated power generation start amount is equal to or less than the remaining battery power, power generation is started. The method according to claim 1,
In the step d)
And the result data includes an operation extension time. A power generation control method for an agricultural electric vehicle to which a power generation simulation method for an agricultural electric vehicle according to any one of claims 1 to 12 is applied. An agricultural electric vehicle to which a power generation simulation method of an agricultural electric vehicle according to any one of claims 1 to 12 is applied.

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