KR102406496B1 - Method for controlling charging of battery - Google Patents

Abstract

A battery charge control method according to an embodiment of the present invention includes the steps of: checking, by a battery charge control device, a condition input by a user through an input unit displayed on a terminal; determining a priority among the input conditions; Checking the total weight of the occupants or the vehicle in the vehicle to decrease 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 of the vehicle has priority among them, the total weight of the vehicle and the vehicle Calculating the ratio of the amount of current to be distributed according to the internal temperature of do.

Description

Method for controlling charging of battery

The present invention relates to a method for controlling battery charging, and more particularly, to a technology for controlling an amount of current for charging a battery in consideration of the number of passengers, load, or temperature in the electric vehicle when charging the battery of the electric vehicle.

In general, a vehicle is classified into a gasoline vehicle, a diesel vehicle, a natural gas vehicle, a hybrid vehicle, and an electric vehicle according to the fuel used.

Among these automobiles, automobiles using fossil fuels emit various exhaust gases when fossil fuels are burned, and these exhaust gases are damaging the natural environment, such as respiratory diseases and climate change due to global warming. In addition, automobiles using fossil fuels generate noise pollution while driving, causing discomfort to not only occupants but also to people who move around. development is urgently required.

Accordingly, a hybrid vehicle capable of minimizing the amount of fossil fuel used has been developed, but the hybrid vehicle can reduce (about 50%) the consumption of fossil fuel compared to a conventional vehicle using fossil fuel, but fossil fuel Because power is generated using the combustion of

Accordingly, recently, electric vehicles using electricity rather than fossil fuels have been developed, and some have been commercialized and operated. Such an electric vehicle installs a battery charged with electricity in a vehicle body and operates the vehicle using the electricity charged in the battery, and has the advantage of minimizing noise and maintaining the environment because exhaust gas is not emitted.

However, current electric vehicles have limited driving range due to battery limitations.

Therefore, there is an urgent need for methods for overcoming the limitations of such batteries, but it is not easy to improve the battery itself, so a method that can solve the above problems without improving the battery itself is urgently required. .

[Patent Document] Korean Patent Registration No. 10-1181186.

The present invention relates to a battery charging control method, and more particularly, to a battery charging control method for controlling an amount of current for charging a battery in consideration of the number of passengers, load, or temperature in the electric vehicle when charging the battery of the electric vehicle .

Other objects and advantages of the present invention may be understood by the following description, and will become more clearly understood by the examples of the present invention. It will be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations thereof indicated in the appended claims.

The battery charge control method according to an embodiment of the present invention includes the steps of: checking, by the battery charge control device, a condition input by a user into a terminal; determining a priority among the input conditions; Checking the total weight of the occupants or the vehicle in the vehicle so as to decrease 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 has priority; the total weight of the vehicle and the internal temperature of the vehicle calculating the ratio of the amount of current to be distributed according to the , selecting the ratio of the amount of current to be distributed, and controlling the amount of current supplied to the battery and the amount of current of the air conditioning control unit according to the ratio of the selected amount of current.

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

In addition, the input condition may include a set temperature, an internal temperature, the number of passengers or luggage, a total weight expected by the user, and priority.

The method may further include increasing the amount of current supplied to the air conditioning control unit and decreasing the amount of current supplied to the battery when the internal temperature of the vehicle is prioritized among the priorities.

In addition, after increasing the amount of current supplied to the air conditioning control unit and decreasing the amount of current supplied to the battery, the method may further include determining whether the internal temperature of the vehicle and a set temperature match.

In addition, on the display of the user's terminal, the charging state of the battery and the expected charging completion time of the battery are displayed, and an input unit for controlling the air conditioning control unit is displayed, and the user receives a set temperature through the input unit displayed on the user's terminal , internal temperature, occupant or luggage weight, user expected total weight, and configuration including priority can be entered.

In addition, the set temperature is a target temperature related to the internal temperature of the vehicle, and may be input by a user.

In addition, the internal temperature is an indoor temperature of the vehicle, and may be detected 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 amount of charge of the vehicle.

In addition, the method may further include, before the battery charge control apparatus confirms the condition inputted to the terminal by the user, the battery control apparatus confirms the amount of charge of the battery.

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

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 battery charge control method of a battery charge control system according to an embodiment of the present invention.

Advantages and features of the present invention, and a method of achieving the same will be described through the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. However, these embodiments are provided to explain in detail enough to be able to easily implement the technical idea of the present invention to those of ordinary skill in the art to which the present invention pertains.

In the drawings, embodiments of the present invention are not limited to the specific form shown and are exaggerated for clarity. Although specific terms have been used herein. This is used for the purpose of describing the present invention, and is not used to limit the meaning or the scope of the present invention described in the claims.

In the present specification, the expression 'and/or' is used to mean including at least one of the elements listed before and after. In addition, the expression 'connected/coupled' is used in a sense including being directly connected to another element or indirectly connected through another element. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. Also, as used herein, a component, step, operation, and element referred to as 'comprises' or 'comprising' refers to the presence or addition of one or more other components, steps, operation and element.

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

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

The battery charge control device 100 transmits a signal informing the telematics server 200 when charging of the battery is started and when charging is complete, and information about the state of charge (SOC) of the battery and expected full charge during battery charging Battery charging information including time information and information on current indoor and outdoor temperatures of the vehicle are transmitted to the telematics server 200 using a wireless communication network.

Specifically, the battery charging 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 the indoor and outdoor temperatures of the electric vehicle, transmits the temperature information to the control unit 130, and operates an air conditioner (air conditioner or heater) installed in the electric vehicle according to the control of the control unit 130. Regulates the vehicle's interior temperature.

The battery charging unit 120 overall manages the overall state for charging the battery. The battery charging unit 120 measures the amount of charging current when charging the battery, calculates the battery state of charge (SOC) and the expected charging time, and transmits the result to the control unit 130 .

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

Thereafter, when the battery charging is completed, the battery charging unit 120 is turned off after transmitting a charging end signal to the control unit 130 .

In addition, when the battery charging unit 120 receives a power supply signal to the air conditioning control unit 110 from the control unit 130 after the battery is fully charged and turned off while the charging plug is plugged into the vehicle, it is driven again (WAKE UP) The current flowing in from the battery charging unit 120 is supplied to the air conditioning control unit 110 . Here, the battery charging unit 120 may be connected to an electric charging station to receive current.

The control unit 130 controls the operation of the battery charging control device 100 as a whole, and telematics the battery SOC information provided from the battery charging unit 120 and the temperature information (indoor temperature information of the vehicle) provided from the air conditioning control unit 110 . It is transmitted to the server 200 .

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

The telematics server 200 stores and manages information about the electric vehicle and the user, and when battery charge information and temperature information about the electric vehicle are received from the battery charge control device 100, the telematics server 200 responds to the electric vehicle using a wired/wireless communication network. The information is transmitted to the registered terminal 300 as much as possible.

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

In addition, when the remote control signal is received from the terminal 300 , the telematics server 200 transmits it to the battery charging control apparatus 100 of the electric vehicle corresponding to the terminal 300 .

That is, the telematics server 200 intermediaries so that the user can remotely control the air conditioning control unit of the electric vehicle using the terminal 300 .

The terminal 300 is a terminal of a user (service subscriber), and an application capable of interworking with the telematics server 200 is driven to access the telematics server 200 so that the user can check the vehicle's battery charge state and indoor and outdoor The temperature can be monitored.

In addition, the terminal 300 generates a remote control signal capable of remotely controlling the air conditioning controller according to a user's instruction and transmits it to the telematics server 200 . The terminal 300 connects to the telematics server 200 through a wired/wireless communication network (WEB, WIBRO, WIFI, RF communication, etc.) include

2 is a flowchart illustrating a battery charge control method of 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 on a terminal (mobile phone), the battery charge control device transmits and receives charging information through the user's terminal and the telematics server, and the display of the user's terminal is charged with the battery. A state and an expected charging completion time of the battery are displayed, and an input unit for controlling the air conditioning control unit of the vehicle is displayed.

The user may input a configuration including a set temperature, an internal temperature, a occupant or luggage weight, a total weight expected by the user, and a priority through an input unit displayed on the user's terminal.

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

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

In addition, the number of occupants is the number of people riding in the vehicle, and may be classified into men, women, and children, and a weight (number of persons) serving as a standard for each is set according to the classification.

In addition, the total weight expected by the user is the total weight that can be loaded in the vehicle, and may be arbitrarily set by the user.

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

Such a user may know the charging state of the battery and the expected charging completion time of the battery through battery charging information transmitted/received between the battery charging control device and the terminal.

The battery charge control device checks the battery charge level and, if the battery charge level is 70% or more, the set temperature input by the user through the input unit displayed on the terminal, the internal temperature, the occupant or luggage weight, the total weight expected by the user, and the priority You can check the configuration including (S11 ~ S17).

Next, the battery charge control device determines and controls a condition for regulating the amount of current distributed to the battery and the air conditioning control unit (a condition input by the user through an input unit displayed on the user's terminal) to meet the user's purpose or needs. You can adjust the amount of current to suit.

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

When the internal temperature of the vehicle is prioritized among the priorities, the battery charging 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 It can be (S19).

That is, when the control of the internal temperature of the vehicle is prioritized, the battery charging control apparatus may increase the amount of current supplied to the air conditioning control unit and decrease the amount of current supplied to the battery ( S21 ).

Next, the battery charging control device determines whether the internal temperature of the vehicle and the set temperature match ( S23 ).

Next, when the internal temperature of the vehicle and the set temperature match, the battery charge control device refers to the amperage control table as shown in Table 1 below, which is calculated according to the internal temperature of the vehicle and the total weight of the vehicle, to determine the ratio of the amount of current. is selected (S25).

[Table 1]

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

Next, the battery charging control device calculates a ratio of the total weight of the vehicle to the amount of current to be distributed according to 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 is preset in the battery charge control device, or the method of calculating the ratio may be updated as necessary.

Next, the battery charging control device selects a ratio of the amount of current to be distributed from the amount of current control table as shown in Table 1 below after calculating the number of passengers or the expected total weight of the vehicle ( S31 ).

Here, the maximum number of passengers is 5 adults based on the passenger car, and the minimum standard is 1 adult. may be input by the user including all passengers and luggage scheduled to be boarded in the vehicle, and may be directly measured in the vehicle if not input by the user.

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

Specifically, the minimum weight of the maximum number of passengers information is 75Kg (based on one male adult), and the maximum weight is N x 75Kg + α (N: the maximum number of passengers, α: the maximum weight of the luggage that can be carried in the vehicle) It can be expressed as , and may vary depending on the type of vehicle.

Here, the battery charge control apparatus may calculate a weight section by dividing the difference between the maximum weight and the minimum weight of the maximum number of passengers information into multiple pieces.

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

For example, 17 degrees or less is displayed as Low, and 31 degrees or more is displayed as High.

The temperature section may be calculated as the difference ΔT between the target temperature input by the user and the internal temperature (indoor temperature) of the vehicle input from the temperature sensor.

For example, the absolute value of the value obtained by subtracting the target temperature from the indoor temperature is defined as ΔT: |indoor temperature target temperature| It can be defined as 10°C, step 3 is defined as 11°C ≤ ΔT < 15°C, step 4 is defined as 15°C ≤ ΔT < 20°C, and step 5 can be defined as 20°C ≤ ΔT.

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

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

As mentioned above, although the present invention has been described with limited configuration and drawings, the technical spirit of the present invention is not limited thereto, and by those of ordinary skill in the art to which the present invention pertains, the technical spirit of the present invention and the following Various modifications and variations will be possible within the scope of equivalents of the claims to be described.

Claims (10)

In the battery charge control method of the battery charge control device,
checking, by the battery charge control device, a condition input by a user into the terminal;
determining a priority among the input conditions;
checking the total weight of the number of occupants in the vehicle or the total weight of the vehicle to decrease 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 of the vehicle is prioritized among the priorities;
calculating a ratio of the amount of current to be distributed according to the total weight of the vehicle and an internal temperature of the vehicle, and selecting the ratio of the amount of current to be distributed; and
controlling the amount of current supplied to the battery and the amount of current of the air conditioning control unit according to the ratio of the selected amount of current
Battery charging control method comprising a. The method according to claim 1,
When the user executes an application installed on the terminal, the battery charge control device transmits and receives charging information through the user's terminal and a telematics server. The method according to claim 1,
The entered condition is
A battery charging control method, comprising: a set temperature, an internal temperature, a weight of occupants or luggage, a total weight expected by a user, and a priority. The method according to claim 1,
If the internal temperature of the vehicle has priority among the priorities,
and increasing the amount of current supplied to the air conditioning control unit and decreasing the amount of current supplied to the battery. 5. The method according to claim 4,
After increasing the amount of current supplied to the air conditioning control unit and decreasing the amount of current supplied to the battery,
Battery charging control method, characterized in that it further comprises the step of determining whether the internal temperature of the vehicle and the set temperature match. The method according to claim 1,
The display of the user's terminal displays the charging state of the battery and the expected charging completion time of the battery, and an input unit for controlling the air conditioning control unit is displayed. A method for controlling battery charging, comprising inputting a configuration including temperature, occupant or luggage weight, total weight expected by the user, and priority. 4. The method according to claim 3,
The set temperature is a target temperature with respect to the internal temperature of the vehicle and is input by a user. 4. The method according to claim 3,
The internal temperature is an indoor temperature of the vehicle, and the battery charging control method, characterized in that detected by a temperature sensor provided in the vehicle. The method according to claim 1,
The priority is a battery charging control method, characterized in that set to include the internal temperature of the vehicle and the amount of charge of the vehicle. The method according to claim 1,
Before the step of the battery charge control device confirming the condition input to the terminal by the user,
The battery charge control method, characterized in that it further comprises the step of checking the battery charge amount by the battery charge control device.

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