KR20180046201A - Method for controlling charging of battery - Google Patents

Abstract

A battery charging control method according to an embodiment of the present invention includes the steps of: checking a condition inputted through an input unit displayed on a terminal by a user, by a battery charging control apparatus; determining a priority among the input conditions; checking the number of passengers of the vehicle or a total weight of the vehicle so as to reduce an amount of currents supplied to an air conditioning control unit and increase an amount of currents supplied to a battery if the charging amount of the vehicle is the priority; calculating a ratio of the amount of currents to be distributed according to an internal temperature of the vehicle and the total weight of the vehicle; selecting the ratio of the amount of currents to be distributed; and controlling the amount of currents supplied to the battery and the amount of currents of the air conditioning control unit according to the selected ratio of the amount of currents. Accordingly, the present invention can control the amount of currents for charging the battery.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery charging control method, and more particularly, to a technique for controlling an amount of electric current for charging a battery in consideration of a passenger, a load,

Generally, cars are divided into gasoline cars, diesel cars, natural gas cars, hybrid cars, and electric cars, depending on the fuel used.

Among such cars, automobiles using fossil fuels are exhausting various exhaust gases when fossil fuels are burned. Such smoke gases are damaging the natural environment such as respiratory diseases as well as climate change due to warming phenomenon. In addition, automobiles using fossil fuels are uncomfortable for passengers as well as people moving around because of noise pollution during driving. These fossil fuels are consumable materials that can not be reproduced. Therefore, in order to prepare for depletion of fossil fuels, alternative fuels The development of such a system is in desperate need.

Accordingly, although a hybrid vehicle capable of minimizing the use of fossil fuel has been developed, such a hybrid vehicle can reduce the consumption of fossil fuel (about 50%) compared with a conventional fossil fuel-based automobile, So that the problem caused by the exhaust gas has been limited.

Recently, electric vehicles using electric fuels without using fossil fuels have been developed and some commercial vehicles have been operated. Such an electric vehicle has an advantage of minimizing noise and maintaining the environment because exhaust gas is not discharged, by installing a battery charged with electricity in the vehicle body and using the electric power charged in the battery.

However, current electric vehicles are still limited due to battery limitations.

Therefore, there is an urgent need for methods to overcome the limitations of such a battery, and it is not easy to improve the battery itself. Therefore, there is a desperate need for a method capable of solving the above problem without improving the battery itself .

[Patent Literature] Korean Patent No. 10-1181186.

The present invention relates to a battery charge control method and, more particularly, to a battery charge control method for controlling an amount of electric current for charging a battery in consideration of a passenger, a load, .

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It is to be easily understood that the objects and advantages of the present invention can be realized by means of the means shown in the claims and combinations thereof.

A method for controlling charging of a battery according to an embodiment of the present invention includes the steps of confirming a condition input by a user to the terminal by the battery charging control device, determining a priority among the inputted conditions, Checking the total weight of the vehicle occupant or the vehicle so as to reduce the amount of current supplied to the air conditioning control unit and increase the amount of current supplied to the battery when the amount of charge is priority, Calculating a ratio of the amount of current to be distributed according to a ratio of the amount of current to be distributed, and controlling a current amount of the air conditioning control unit and an amount of current supplied to the battery according to a ratio of the selected amount of current.

In addition, when the user executes an application installed in the terminal, the battery charge control device can transmit and receive charge information through the terminal of the user and the telematics server.

In addition, the input conditions may include a set temperature, an internal temperature, a passenger or baggage weight, a total weight expected by the user, and a priority.

Further, when the internal temperature of the vehicle is higher than the priority, the amount of current supplied to the air conditioning control unit may be increased and the amount of current supplied to the battery may be decreased.

The method may further include determining whether the internal temperature of the vehicle matches the set temperature after increasing the amount of current supplied to the air conditioning control unit and reducing the amount of current supplied to the battery.

In addition, a charging status of the battery, a scheduled charging completion time of the battery, and the like are displayed on the display of the user terminal, and an input unit for controlling the air conditioning control unit is displayed. , Internal temperature, occupant or load weight, total weight expected by the user, and priority.

Further, the set temperature is a target temperature relating to the internal temperature of the vehicle, and can be input by the user.

In addition, the internal temperature is an indoor temperature of the vehicle, and can be sensed by a temperature sensor provided in the vehicle.

In addition, the priority may be set to include the internal temperature of the vehicle and the charge amount of the vehicle.

The method may further include confirming the battery charge amount by the battery control device before the step of confirming the condition input by the user to the terminal by the battery charge control device.

This technology is a technology that can control the amount of electric current for charging the battery in consideration of the number of passengers, load, or temperature of the electric vehicle when the battery of the electric vehicle is charged.

1 is a view for explaining a battery charge control system according to an embodiment of the present invention.
2 is a flowchart illustrating a method of controlling a battery charge in a battery charge control system according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish it, will be described with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. The embodiments are provided so that those skilled in the art can easily carry out the technical idea of the present invention to those skilled in the art.

In the drawings, embodiments of the present invention are not limited to the specific forms shown and are exaggerated for clarity. Although specific terms are used herein, It is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation of the scope of the appended claims.

The expression " and / or " is used herein to mean including at least one of the elements listed before and after. Also, the expression " coupled / connected " is used to mean either directly connected to another component or indirectly connected through another component. The singular forms herein include plural forms unless the context clearly dictates otherwise. Also, as used herein, "comprising" or "comprising" means to refer to the presence or addition of one or more other components, steps, operations and elements.

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

1 is a view for explaining a battery charge control system according to an embodiment of the present invention.

Referring to FIG. 1, a battery charge control system of an electric vehicle of FIG. 1 includes a battery charge control apparatus 100, a telematics server 200, and a terminal 300.

The battery charge control apparatus 100 is mounted on an electric vehicle and communicates with the telematics server 200 through a wireless repeater (e.g., Access Point) or a mobile communication (CDMA, WCDMA) repeater installed in a charging station when the electric vehicle enters a charging station .

The battery charge control apparatus 100 transmits a signal informing the fact to the telematics server 200 when the battery is started to be charged and when the battery is fully charged. While the battery is being charged, information on the state of charge (SOC) Battery charging information including information on the time, and information on the current indoor and outdoor temperatures of the vehicle to the telematics server 200 using the wireless communication network.

Specifically, the battery charge control apparatus 100 includes an air conditioning control unit 110, a battery charging unit 120, and a control unit 130.

The air conditioning control unit 110 measures indoor and outdoor temperatures of the electric vehicle and transmits the temperature information to the control unit 130. The air conditioning control unit 110 operates the air conditioning apparatus (air conditioner or heater) installed in the electric vehicle under the control of the control unit 130 Adjust the indoor temperature of the vehicle.

The battery charging unit 120 collectively manages general conditions for charging the battery. The battery charging unit 120 measures the amount of charging current when charging the battery, calculates the battery charging state (SOC) and the estimated buffering time, and transmits the result to the control unit 130.

That is, when the power supply signal is received while the battery is being charged, the battery charging unit 120 does not use the charging current for charging the battery, but uses some of the charging current for driving the air conditioner.

Then, when the battery charging is completed, the battery charger 120 transmits a charging completion signal to the controller 130 and then turns off.

The battery charging unit 120 may be further powered up when the power supply signal to the air conditioning control unit 110 is received from the controller 130 after the battery is fully charged and turned off while the charging plug is plugged into the vehicle. And supplies the current flowing from the battery charging unit 120 to the air conditioning control unit 110. Here, the battery charging unit 120 may be connected to an electric charging station to receive a current.

The control unit 130 controls the operation of the battery charging control apparatus 100 as a whole and stores the battery SOC information provided from the battery charging unit 120 and the temperature information (the room temperature information of the vehicle) supplied from the air conditioning control unit 110 as telematics To the server (200).

Here, the control unit 130 may include a head unit or an AVN (Audio / Video / Navigation) device provided in the vehicle.

The telematics server 200 stores and manages information on the electric vehicle and the user. When the battery charging information and the temperature information of the electric vehicle are received from the battery charging control device 100, the telematics server 200 uses the wired / And transmits the corresponding information to the terminal 300 which is registered in advance.

That is, the telematics server 200 allows the user to check the state of charge of the battery and the indoor and outdoor temperatures of the vehicle in real time using the terminal 300.

When the telematics server 200 receives the remote control signal from the terminal 300, the telematics server 200 transmits the remote control signal to the battery charging controller 100 of the electric vehicle corresponding to the terminal 300.

That is, the telematics server 200 mediates the remote control of the air-conditioning control unit of the electric vehicle by using the terminal 300 by a user.

The terminal 300 is connected to the telematics server 200 by an application that can be interlocked with the telematics server 200 as a terminal of the user (service subscriber) Temperature can be monitored.

Also, the terminal 300 generates a remote control signal that can remotely control the air conditioning control unit according to a user's instruction, and transmits the remote control signal to the telematics server 200. Such a terminal 300 may be connected to a telematics server 200 via a wired / wireless communication network (WEB, WIBRO, WIFI, RF communication, etc.) .

2 is a flowchart illustrating a method of controlling a battery charge in a battery charge control system according to an embodiment of the present invention.

Referring to FIG. 2, when a user executes an application (App) installed in a terminal (mobile phone), the battery charge control device transmits and receives charge information through the terminal and the telematics server of the user, State and a scheduled completion time of the battery, and the like, and an input unit for controlling the air conditioning control unit of the vehicle is displayed.

The user can input a configuration including the set temperature, the internal temperature, the passenger or load weight, the total weight expected by the user, and the priority through the input unit displayed on the user's terminal.

Here, the set temperature is a target temperature relating to the internal temperature of the vehicle, and can be input by the user.

Further, the internal temperature can be sensed by a temperature sensor provided in the vehicle, as an indoor temperature of the vehicle.

In addition, the number of passengers is classified into a man, a woman, and a child, and the weight (personnel) that sets each criterion is set according to the classification.

In addition, the total weight expected by the user can be arbitrarily set by the user as the total weight that can be loaded on the vehicle.

In addition, the order of priority can be set among the temperature of the vehicle or the charge amount of the vehicle in the priority order.

Such a user can know the state of charge of the battery and the scheduled completion time of the battery through the battery charge information transmitted and received between the battery charge control apparatus and the terminal.

When the battery charge amount is 70% or more, the battery charge control device checks the battery charge amount, and if the battery charge amount is 70% or more, the set temperature, internal temperature, occupant or load weight input through the input part displayed on the terminal by the user, (S11 to S17).

Next, the battery charge control device determines and controls the conditions for adjusting the amount of current distributed to the air conditioning control unit (the condition input by the user through the input unit displayed on the terminal of the user) The amount of current can be adjusted accordingly.

First, the battery charge control device determines the priority among the conditions for controlling the amount of current.

When the internal temperature of the vehicle is prioritized among the priorities, the battery charge control device controls the air conditioning control unit to adjust the amount of current supplied to the air conditioning control unit, and controls the battery charging unit to adjust the amount of current supplied to the battery (S19).

That is, when the control of the internal temperature of the vehicle takes priority, the battery charge control apparatus can increase the amount of current supplied to the air conditioning control unit and reduce the amount of current supplied to the battery (S21).

Next, the battery charge control device determines whether the internal temperature of the vehicle matches the set temperature (S23).

Next, when the internal temperature and the set temperature of the vehicle coincide with each other, the battery charge control device refers to the current amount control table as shown in Table 1, which is calculated according to the internal temperature of the vehicle and the total weight of the vehicle, (S25).

[Table 1]

However, in step S19, when the amount of charge of the vehicle is the priority among the priorities, the battery charge control device decreases the amount of current supplied to the air conditioning control part and increases the amount of current supplied to the battery, (S27).

Next, the battery charge control device calculates the ratio of the amount of current to be distributed according to the total weight of the vehicle and the internal temperature of the vehicle (S29).

Here, the method of calculating the ratio of the amount of current according to the total weight of the vehicle and the internal temperature may be pre-set in the battery charging control device, or may be updated in the manner of calculating the ratio as required.

Next, the battery charge control device selects the ratio of the amount of current to be distributed in the current amount control table as shown in Table 1 (S31).

In this case, the number of passengers is the maximum of five adults on the basis of passenger cars, one adult is the minimum standard, the range of the passengers can be set by the user or the control unit of the battery charge control device, May be input by the user including all the passengers and luggage to be boarded on the vehicle, and may be directly measured from the vehicle when no input is made by the user.

For example, since the maximum number of passengers on board the vehicle is set according to the type of vehicle, the battery charge control device can grasp the maximum number of passengers using the information of the vehicle registered by the user.

Specifically, the minimum weight of the maximum number of passengers is 75 Kg (based on 1 male adult), the maximum weight is N x 75 Kg + α (N: maximum number of passengers, α: And may vary depending on the type of vehicle.

Here, the battery charge control apparatus can divide the difference between the maximum weight and the minimum weight of the maximum occupant number information into a plurality of weight sections to calculate the weight section.

The set temperature indicates the internal temperature of the vehicle desired by the user.

For example, 17 degrees or less is indicated as low, and 31 degrees or more is indicated as high.

The temperature interval can be calculated as a difference (? T) between the target temperature inputted by the user and the internal temperature (room temperature) of the vehicle inputted from the temperature sensor.

For example, the absolute value of the room temperature minus the target temperature is defined as ΔT: | indoor temperature target temperature |, where 1 ° is defined as 0 ° C ≤ ΔT <5 ° C, and 2 ° is defined as 5 ° C ≤ ΔT < 10 ° C, the third stage is defined as 11 ° C ≤ ΔT <15 ° C, the fourth stage is defined as 15 ° C ≤ ΔT <20 ° C, and the fifth stage is defined as 20 ° C ≤ ΔT.

Next, the battery control unit controls the current amount of the air conditioning control unit and the amount of current supplied to the battery according to the ratio of the selected current amount (S33).

As described above, the present technology is a technique capable of controlling the amount of electric current for charging the battery in consideration of the number of passengers, load, or temperature of the electric vehicle when the battery of the electric vehicle is charged.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various modifications and variations may be made without departing from the scope of the appended claims.

Claims (10)

A battery charge control method for a battery charge control device,
Confirming a condition input by the user to the terminal by the battery charging control device;
Determining a priority among the input conditions;
Confirming the total weight of the passenger or the vehicle in the vehicle so as to reduce the amount of current supplied to the air conditioning control unit and increase the amount of current supplied to the battery when the charged amount of the vehicle is the priority among the priorities;
Calculating a ratio of a current amount to be distributed according to a total weight of the vehicle and an internal temperature of the vehicle, and selecting a ratio of the amount of current to be distributed; And
Controlling the current amount of the air conditioning control unit and the amount of current supplied to the battery according to the ratio of the selected current amount
Wherein the battery charging control method comprises: The method according to claim 1,
Wherein when the user executes an application installed in the terminal, the battery charge control device transmits and receives charge information through the telematics server and the terminal of the user. The method according to claim 1,
The input condition is
A set temperature, an internal temperature, a passenger or baggage weight, a total weight expected by the user, and a priority. The method according to claim 1,
When the internal temperature of the vehicle is given priority among the priorities,
And increasing the amount of current supplied to the air conditioning control unit and reducing the amount of current supplied to the battery. The method of claim 4,
After the step of increasing the amount of current supplied to the air conditioning control part and reducing the amount of current supplied to the battery,
Further comprising the step of determining whether the internal temperature of the vehicle matches the set temperature. The method according to claim 1,
A charging status of the battery and a scheduled completion time of the battery are displayed on the display of the user terminal and an input unit for controlling the air conditioning control unit is displayed and the user displays the set temperature, A temperature, a passenger or baggage weight, a total weight expected by the user, and a priority. The method of claim 3,
Wherein the set temperature is a target temperature relating to an internal temperature of the vehicle and is input by a user. The method of claim 3,
Wherein the internal temperature is an indoor temperature of the vehicle and is sensed by a temperature sensor provided in the vehicle. The method according to claim 1,
Wherein the priority is set to include an internal temperature of the vehicle and a charge amount of the vehicle. The method according to claim 1,
Before the step of the battery charging control device verifying the condition input by the user to the terminal,
Further comprising the step of the battery control device checking the battery charge amount.

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