KR20230100771A - Battery management device and vehicle having the same - Google Patents

Abstract

The present invention relates to a battery management device and a vehicle having the same.
The vehicle of the present invention includes a user interface; a location receiver for receiving location information; a communication unit that communicates with the server; a battery management device that monitors the temperature of the battery and the state of charge of the battery; a heating unit provided adjacent to the battery; and Obtaining departure information based on the location information received by the location receiving unit, acquiring route information based on the obtained departure location information and destination information input to the user interface, and obtaining outside temperature information and battery power from the information received from the server. Obtains road information for each link in the discharge output map and route information, obtains requested output information for each link based on the obtained road information for each link and previously stored driving information of the user, and obtains information for each link based on the discharge output map of the battery. Obtain battery discharge output information, identify a link with a requested output greater than the discharge output based on the requested output information for each link and the battery discharge output information for each link, and based on the arrival time information to reach the starting point of the identified link. and a processor for controlling the operation of the heating unit.

Description

Battery management device and vehicle having the same {Battery management device and vehicle having the same}

The present invention relates to a battery management device for improving the output of a battery and a vehicle having the same.

The vehicle controls starting by using a battery, and when the starting is completed, an internal combustion engine vehicle (general engine vehicle) that burns petroleum fuel such as gasoline and diesel to generate mechanical power and runs using this mechanical power, An electric vehicle that includes a rechargeable battery and a motor, rotates the motor with electricity stored in the battery, and drives wheels using the rotation of the motor, and includes an engine, battery, and motor, and includes the mechanical power of the engine and the electrical power of the motor. It includes hybrid vehicles and hydrogen fuel cell vehicles that drive by controlling power.

The battery of such an eco-friendly vehicle exhibits the best ability at room temperature (about 25 ° C) in terms of output and energy, and as the temperature decreases relative to room temperature, the charging and discharging ability drops significantly compared to room temperature.

As a result, a problem arises in that the output of the battery does not satisfy the user's requested output according to the road environment while the vehicle is driving.

An aspect provides a battery management device that increases the output of a battery by obtaining a required output for each link of a path and controlling a temperature rise of the battery based on the obtained required output for each path and a discharge output of the battery, and a vehicle having the same .

A battery management device according to an aspect includes a battery management device provided in a vehicle, comprising: a communication unit configured to communicate with a server; a temperature sensor that detects the temperature of the battery; a heating unit provided adjacent to the battery; and external air temperature information, a discharge output map of the battery, and road information for each link within a route from the starting point to the destination from the information received from the server, and obtaining each link based on the obtained road information for each link and the user's driving information stored in advance. Acquire requested output information, obtain battery discharge output information for each link based on the battery discharge power map, and obtain a link whose requested output is greater than the discharge output based on the requested output information for each link and the battery discharge output information for each link. and a processor for controlling the operation of the heating unit based on arrival time information for reaching the starting point of the identified link.

The processor of the battery management device according to one aspect checks the discharge energy of a vehicle consumed while driving a first link among a plurality of links in a path, and determines the amount of discharge energy of another vehicle driving the first link among information transmitted from the server. The discharge energy is checked, and the driving information of the user is obtained and stored based on the discharge energy of the vehicle and the discharge energy of other vehicles.

The processor of the battery management device according to an aspect checks the average discharge energy of the vehicle consumed during driving of a first link among a plurality of links in a path multiple times, and selects the first link among information transmitted from a server multiple times. Check the average discharge energy of other vehicles that have been driven, and acquire and store driving information of the user based on the average discharge energy of the vehicle and the average discharge energy of other vehicles.

In the battery management device according to an aspect, the discharge output map of the battery is obtained by matching expected temperature information of the battery corresponding to external temperature information and initial temperature information of the battery, and discharge output information of the battery corresponding to the expected temperature information of the battery. contains a table

Road information for each link of the battery management device according to an aspect includes a friction coefficient for each link, a slope for each link, an air friction coefficient for each link, and a driving speed for each link.

The driving speed for each link of the battery management device according to an aspect is the highest driving speed among the limiting speed for each link, the average driving speed of other vehicles for each link, or the driving speed of other vehicles.

The processor of the battery management device according to one aspect checks necessary temperature information of the battery corresponding to the requested output in the link identified from the information received from the server, and the expected temperature information of the battery when the starting point of the checked link is reached. , obtaining required time information for temperature increase of the battery based on the required temperature information of the battery and the expected temperature information of the battery, and controlling the operation of the heating unit based on the obtained required time information and the arrival time.

The processor of the battery management device according to one aspect controls the operation of the heating unit before the arrival time.

The processor of the battery management device according to an aspect checks required temperature information of the battery corresponding to the requested output from the checked link, and based on the current temperature information of the battery and the required temperature information of the battery detected by the temperature sensor, the battery Required time information for temperature rise of is acquired, and the operation of the heating unit is controlled based on the obtained required time information and arrival time.

The processor of the battery management device according to an aspect acquires battery discharge output information again in at least one link next to the checked link based on the necessary temperature information and the outdoor temperature information of the checked link.

A vehicle according to another aspect includes a user interface; a location receiver for receiving location information; a communication unit that communicates with the server; a battery management device that monitors the temperature of the battery and the state of charge of the battery; a heating unit provided adjacent to the battery; and Obtaining departure information based on the location information received by the location receiving unit, acquiring route information based on the obtained departure location information and destination information input to the user interface, and obtaining outside temperature information and battery power from the information received from the server. Obtains road information for each link in the discharge output map and route information, obtains requested output information for each link based on the obtained road information for each link and previously stored driving information of the user, and obtains information for each link based on the discharge output map of the battery. Obtain battery discharge output information, identify a link with a requested output greater than the discharge output based on the requested output information for each link and the battery discharge output information for each link, and based on the arrival time information to reach the starting point of the identified link. and a processor for controlling the operation of the heating unit.

A processor of a vehicle according to another aspect checks discharge energy of a vehicle consumed while driving a first link among a plurality of links in the route information, and discharges other vehicles driving the first link among information transmitted from the server. The energy is checked, and the driving information of the user is obtained and stored based on the discharged energy of the vehicle and the discharged energy of other vehicles.

The processor of the vehicle according to another aspect checks the average discharge energy of the vehicle consumed when a first link among a plurality of links in route information is driven multiple times, and drives the first link multiple times among information transmitted from a server. The average discharge energy of one other vehicle is identified, and driving information of the user is obtained and stored based on the average discharge energy of the vehicle and the average discharge energy of the other vehicle.

According to another aspect, the discharge output map of the battery of the vehicle includes a table in which expected temperature information of the battery corresponding to external temperature information and initial temperature information of the battery and discharge output information of the battery corresponding to the expected temperature information of the battery are matched. include

Road information for each link of the vehicle according to another aspect includes a friction coefficient for each link, an inclination for each link, an air friction coefficient for each link, and a driving speed for each link.

According to another aspect, the traveling speed of a vehicle for each link is the maximum traveling speed among the limit speed for each link, the average traveling speed of other vehicles for each link, or the traveling speed of other vehicles.

According to another aspect, the processor of the vehicle checks required temperature information of the battery corresponding to the requested output of the link identified from the information received from the server, and determines expected temperature information of the battery when the start point of the identified link is reached. Required time information for temperature rise of the battery is obtained based on the required temperature information of the battery and expected temperature information of the battery, and the operation of the heating unit is controlled based on the obtained required time information and the arrival time.

According to another aspect, the processor of the vehicle reacquires battery discharge output information in at least one link next to the checked link based on the necessary temperature information and the outside temperature information of the checked link.

A vehicle according to another aspect includes an outside air temperature detection unit configured to detect an outside air temperature; a gradient detection unit that detects a gradient; It further includes a speed detection unit that detects the traveling speed. A processor of a vehicle according to another aspect may include location information while driving, gradient information detected by a gradient sensor, driving speed information detected by a speed sensor, and outside temperature information detected by an outside temperature detector, monitored by a battery management device. It transmits information about the charged battery charge state to the server.

According to another aspect, the processor of the vehicle obtains the requested output for each link based on at least one of a front projected area and a weight when acquiring the requested output for each link.

According to the present invention, it is possible to arrive at a destination without problems along a route selected by the user by adjusting the discharge output of the battery based on the user's driving information and big data.

The present invention can prevent a problem of wasting driving time due to a decrease in discharge output of a battery from a user's point of view.

The present invention can prevent the discharge output performance of the battery from lowering by managing the temperature of the battery in a low power period, thereby preventing quality degradation. As such, the present invention can improve the durability of the battery by efficiently managing the battery.

The present invention can improve the quality and marketability of vehicles, further increase user satisfaction, improve user convenience, reliability and vehicle safety, and secure product competitiveness.

1 is a diagram illustrating communication of a vehicle according to an embodiment.
2 is an exemplary diagram of a power unit of a vehicle according to an embodiment.
3 is a control configuration diagram of a vehicle according to an embodiment.
4 is a diagram illustrating acquisition of driving information of a user of a vehicle according to an embodiment.
5 is an exemplary diagram of external air temperature, battery temperature, demand output, and discharge output according to the lapse of driving time of a vehicle according to an embodiment.
6 is an exemplary view of a link on a path along which a vehicle travels according to an embodiment.
FIG. 7 is an exemplary diagram of a requested output for each link shown in FIG. 6 and a discharge output of a battery.
8 is a control configuration diagram of a battery management device provided in a vehicle according to an embodiment.

Like reference numbers designate like elements throughout the specification. This specification does not describe all elements of the embodiments, and general content or overlapping content between the embodiments in the technical field to which the present invention pertains will be omitted. The term 'unit, module, device' used in the specification may be implemented as software or hardware, and according to embodiments, a plurality of 'units, modules, devices' may be implemented as a single component, or a single 'unit, It is also possible that the 'module, device' includes a plurality of components.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of being directly connected but also the case of being indirectly connected, and indirect connection includes being connected through a wireless communication network. do.

In addition, when a certain component is said to "include", this means that it may further include other components, not excluding other components unless otherwise stated.

Terms such as first and second are used to distinguish one component from another, and the components are not limited by the aforementioned terms.

Expressions in the singular number include plural expressions unless the context clearly dictates otherwise.

In each step, the identification code is used for convenience of description, and the identification code does not explain the order of each step, and each step may be performed in a different order from the specified order unless a specific order is clearly described in context. there is.

Hereinafter, the working principle and embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a diagram illustrating communication of a vehicle according to an embodiment, and FIG. 2 is an exemplary diagram of a power unit of a vehicle according to an embodiment.

1 is a diagram for explaining communication between a vehicle 1, a server 2, and an infrastructure 3. Referring to FIG.

The vehicle 1 may radiate electromagnetic waves to the outside through the antenna 1a.

In this case, the vehicle antenna 1a may emit electromagnetic waves corresponding to electrical signals transmitted from the first processor 190 (see FIG. 3 ) provided in the vehicle 1 .

The vehicle 1 receives electromagnetic waves emitted from at least one of the infrastructure 3 and the server 2 through the antenna 1a and converts the received electromagnetic waves into electrical signals.

The vehicle 1 demodulates the electromagnetic wave received through the antenna 1a, converts it into an electrical signal, generates a control signal corresponding to the converted electrical signal, and uses the generated control signal to control the vehicle 1.

The vehicle 1 communicates with the server 2 .

Here, the server 2 may be a server provided in the vehicle 1, a service center that manages other vehicles, a manufacturer, a maintenance sensor, a charging management center, a meteorological office, a traffic information information center, and the like. In addition, the server 2 may be an application (ie, app) server that provides services associated with the vehicle 1 and other vehicles, and may be a telematics server and an application server related to temperature.

The vehicle 1 may communicate with the server 2 through the infrastructure 3 of the road.

Such a vehicle 1 may receive electromagnetic waves emitted from the road infrastructure 3 or may emit electromagnetic waves to the road infrastructure 3 .

The infrastructure 3 receives electromagnetic waves emitted from the antenna 1a of the vehicle 1 through the antenna 3a, and obtains information provided by the vehicle 1 by using an electrical signal corresponding to the received electromagnetic waves. Alternatively, a control signal may be generated.

The infrastructure 3 may be connected to an external server 2 through a separate cable.

When an electrical signal is received from the server 2, the infrastructure 3 converts the received electrical signal into a control signal or information, converts the converted control signal or information into electromagnetic waves, and emits the converted electromagnetic waves through the antenna 3a. can do. At this time, vehicles located around the infrastructure 3 may receive electromagnetic waves emitted from the infrastructure 3 .

The infrastructure 3 may emit electromagnetic waves that only one vehicle can receive according to the control command of the server 2 .

Accordingly, communication (V2I communication) between the vehicle 1 and the infrastructure 3 (ie, the structure) can be performed.

In addition, the vehicle 1 may perform communication (V2V communication) with other vehicles.

The vehicle 1 may receive road information, outside temperature information, and big data from the server 2 .

Road information may include slope information for each link, speed limit information for each link, a friction coefficient for each link, an air friction coefficient for each link, and the like.

The link may be a section in which roads are divided according to regions and road types, and the divided roads are divided by a predetermined length. For example, when a predetermined length is 1 km, one link may be a road having a length of 1 km.

In addition, the link may be a section divided according to internal logic on the navigation software.

The external temperature information may include external temperature information for each link or external temperature information for each region, and may be external temperature information of a current location of the vehicle.

Big data may include a map of the battery's discharge output.

The discharge output map of the battery includes a table in which external temperature information and expected temperature information of the battery corresponding to the initial temperature information of the battery are matched with discharge output information of the battery corresponding to the expected temperature information of the battery.

The temperature of the battery during driving may increase as the driving time of the vehicle increases, and at this time, the temperature increase rate of the battery may vary depending on the outside temperature. That is, the temperature of the battery may change according to the initial temperature of the battery, the outdoor temperature, and the running time, which may be obtained and stored through experiments.

That is, the vehicle may obtain an expected temperature of the battery changed in response to the initial temperature of the battery, the outdoor temperature, and the driving time from the discharge output map of the battery.

A discharge output map of the battery may be provided for each link.

Big data may include required temperature information of a battery corresponding to requested output information.

The big data may include required temperature information of the battery corresponding to discharge output information of the battery.

The big data may include expected temperature information of the battery and required temperature information of the battery corresponding to the state of charge information of the battery.

Big data may include driving time information for each link and distance information for each link.

The big data may further include requested output information for each link.

The requested output information for each link may be information obtained by averaging the requested outputs of other vehicles that have traveled on each link. That is, the requested output information for each link may include average requested output information for each link.

The requested output information for each link may be the requested output information having the maximum value among the requested outputs of the vehicles driving on each link. That is, the requested output information for each link may include maximum requested output information for each link.

The travel time information for each link is travel time information from a start point to an end point of each link, and may be average travel time information obtained by averaging travel times of a plurality of vehicles.

The temperature change information of the battery may include information about the temperature change of the battery according to the external temperature and time. The temperature change of the battery may vary according to the initial temperature of the battery detected when the engine is turned on.

The temperature change information of the battery may include information about the external air temperature for each initial temperature of the battery at the time when the ignition is turned on and the temperature of the battery changed over time.

Big data may include driving speed information for each link. The travel speed information for each link may include average travel speed information from a start point to an end point of each link.

Big data may be big data based on route information from a starting point to a destination.

Big data may be big data based on route information from a departure point to a destination for each type of vehicle.

The vehicle 1 may receive outside temperature information or big data from other vehicles.

Also, the vehicle 1 may perform communication with a user terminal (not shown). That is, the vehicle 1 may receive external temperature information or big data from the user terminal.

The vehicle 1 may include a body having interior and exterior parts, and a chassis on which mechanical devices necessary for driving are installed except for the body.

Here, the chassis of the vehicle is a frame supporting the body, and the chassis has wheels arranged on the front, rear, left and right sides, a power unit for applying driving force to the front, rear, left and right wheels, a steering unit, and a braking device for applying braking force to the front, rear, left and right wheels. And a suspension device may be provided.

As shown in FIG. 2 , the power unit of the vehicle includes a battery 110 , a motor 120 , an inverter 130 , a speed reducer 140 and a charging circuit unit 150 .

The battery 110 generates a high-voltage current to supply driving power to the vehicle.

The battery 110 may be electrically connected to electronic devices such as convenience devices and additional devices to supply driving power to each electronic device.

The battery 110 may be charged with power supplied from a charger disposed in a parking lot or charging station. That is, the battery 110 may be a battery capable of being charged and discharged.

During regenerative braking of the battery 110, the battery 110 may be charged using power generated by the motor 120 performing the power generation function.

The vehicle may further include an auxiliary battery provided separately from the battery 110 .

The vehicle may further include a power converter (not shown).

The power converter converts power supplied from the outside into power for charging the battery 110 and supplies the converted power to the battery 110 . Here, the power supplied from the outside may be the power of the charging station.

The motor 120 generates rotational force using electric energy of the battery 110 and transmits the generated rotational force to wheels so that the wheels are driven.

The motor 120 converts the electrical energy of the battery 110 into mechanical energy for operating various devices provided in the vehicle.

When the start button (or boot button) is turned on, the maximum current is supplied to the motor 120 to generate maximum torque.

The motor 120 may operate as a generator to charge the battery 110 under energy regeneration conditions such as braking, deceleration, steel plate driving, or low speed driving.

The inverter 130 drives the motor 120 in response to the control command of the first processor 190 . The inverter 130 converts the power of the battery 110 into driving power of the motor 120 .

When the drive power of the motor 120 is output, the inverter 130 outputs the drive power of the motor 120 based on a target driving speed according to a user command. Here, the driving power of the motor 120 may vary according to a switching signal for outputting a current corresponding to the target driving speed and a switching signal for outputting a voltage corresponding to the target vehicle speed. That is, the inverter 130 may include a plurality of switching elements.

The inverter 130 may transfer power generated by the motor 120 to the battery 110 during regenerative braking. That is, the inverter 130 may also perform a function of changing the direction and output of current between the motor 120 and the battery 110 .

The reducer 140 reduces the speed of the motor 120 and transmits rotational force obtained by increasing the torque of the motor to the wheels.

The charging circuit unit 150 converts external commercial power (AC) into rectified and direct current and transfers it to the battery 110 . For example, the charging circuit unit 150 may include an AC rectifier, a Power Factor Correction (PFC) unit, a converter, and a capacitor.

3 is a control configuration diagram of a vehicle according to an embodiment, and will be described with reference to FIGS. 4 to 8 .

4 is an exemplary view of obtaining driving information of a user of a vehicle according to an embodiment, and FIG. 5 is an exemplary view of external air temperature, battery temperature, requested output, and discharge output according to the lapse of driving time of a vehicle according to an embodiment. 6 is an exemplary diagram of a link on a path along which a vehicle travels according to an embodiment, FIG. 7 is an exemplary diagram of a requested output for each link shown in FIG. 6 and a discharge output of a battery, and FIG. 8 is a vehicle according to an embodiment. It is a control configuration diagram of the battery management device provided in .

The vehicle 1 includes a battery 110, a battery management device 160, a user interface 170, a sound output unit 173, a cluster 174, a speed detector 175, an outside temperature detector 176, and a gradient detector. 177, a location receiver 178, a communication unit 180, a first processor 190 and a memory 191.

A description of the battery 110 is omitted since it is described in the description of FIG. 2 .

The battery management device 160 monitors the state of charge (SOC) of the battery 110 and transmits state of charge information about the monitored state of charge to the first processor 190 .

The battery management device 160 may also apply heat to the battery to increase the output of the battery. The battery management device 160 will be described later.

The user interface 170 outputs information on various functions performed in the vehicle and information on various functions for user convenience.

The user interface 170 can also receive operation commands for functions that can be performed by the vehicle terminal 110 and various functions for user convenience.

The user interface 170 may include a display unit 172 and may further include an input unit 171 .

The input unit 171 receives user input.

The input unit 171 receives an operation command for at least one function among functions that can be performed in the user interface 170 .

The input unit 171 may also receive destination information for the navigation mode.

The display unit 172 displays operation information on the function being performed.

For example, the display unit 112 can display information related to a phone call, display content information output through a user terminal, or display information related to music playback, and display external broadcasting information. It is also possible.

When performing the navigation mode, the display unit 172 may display a route from a current location to a destination and display road guidance information.

The display unit 172 can also display battery management information, and can also display current state of charge information of the battery.

The display unit 172 may also display the accumulated driving distance, the distance to empty (DTE), the driving time to the destination, and the distance to the destination.

The display unit 172 may also display the current indoor temperature, target indoor temperature, and outdoor temperature.

The display unit 172 can also display communication status information with the server 2 . That is, the display unit 172 can also display communication possibility information with the server 2 and communication impossibility information.

The display unit 172 may display outside air temperature information transmitted from the server 2 and may also display outside air temperature information transmitted from the server 2 for each region of the country.

The display unit 172 may also display operation information on battery temperature rise.

The user interface 170 may be installed on the dashboard in a buried or stationary manner.

The user interface 170 may include a display panel as a display unit and may further include a touch panel as an input unit.

That is, the user interface 170 may include only a display panel, or may include a touch screen in which a touch panel is integrated with the display panel.

When the user interface 170 is implemented as a touch screen, a user's operation command may be directly input through the touch panel.

When the user interface 170 is implemented only with the display panel, a button displayed on the display panel may be selected using the input unit 171 provided in the head unit or center fascia.

The vehicle may further include a sound output unit 173 and a cluster 174 .

The sound output unit 173 outputs output information of at least one of an audio device, a radio device, and the user interface 170 as sound.

The sound output unit 173 may be provided in the user interface 170 .

The sound output unit 173 may output operation information about the battery temperature rise as sound.

The cluster 174 is disposed on the dashboard and includes a tachometer, speedometer, turn indicator, high beam indicator, warning lamp, seat belt warning lamp, automatic shift selector indicator, door open warning lamp, odometer, odometer (i.e. It may include a display displaying information such as a cumulative distance recorder), a state of charge of a battery, and electric power consumption.

The cluster 174 may also display operation information on battery temperature rise.

The speed detector 175 detects the driving speed of the vehicle and transmits driving speed information about the detected driving speed to the first processor 190 .

The speed detector 175 may include wheel speed sensors provided on each of a plurality of wheels, or may include an acceleration sensor provided on the vehicle.

The outdoor temperature detector 176 detects the outdoor temperature and transmits outdoor temperature information about the detected outdoor temperature to the first processor 190 .

The gradient detection unit 177 detects the gradient of the road of the vehicle.

The inclination detection unit 177 may include any one of an acceleration sensor, a gyro sensor, a tilt sensor, and a geomagnetic sensor.

The location receiver 178 receives location information about the current location of the vehicle.

The location receiver 178 may include a GPS receiver.

Here, a GPS (Global Positioning System) receiver receives signals from a plurality of GPS satellites, obtains a current location using distance and time information corresponding to the location signals of the plurality of GPS satellites, and outputs the acquired location information of the vehicle. do.

The communication unit 180 communicates with at least one of the server 2, the infrastructure 3, and other vehicles.

The communication unit 180 may also perform communication with at least one of user terminals (not shown).

The communication unit 180 transmits a control signal of the first processor 190 to the server 2 and transmits various types of information transmitted from the server 2 to the first processor 190 . Various types of information transmitted from the server 2 may include big data, road information, and outside temperature information.

The communication unit 180 may transmit initial temperature information of the battery, current location information, destination information, and route information to the server 2 based on the control command of the first processor 190 .

The communication unit 180 may transmit external temperature information received from an external device such as a server to the first processor 190 and route information received from an external device such as a server may also be transmitted to the first processor 190 .

The communication unit 180 may further include a location receiving unit for receiving location information on the current location. Here, the location receiving unit includes a GPS receiver (not shown) and transmits information on the current location of the vehicle to the first processor 190 .

The communication unit 180 may include one or more components enabling communication with the vehicle internal components and various external devices, and may include, for example, at least one of a short-distance communication module, a wired communication module, and a wireless communication module. .

The short-range communication module uses a wireless communication network such as a Bluetooth module, an infrared communication module, a Radio Frequency Identification (RFID) communication module, a Wireless Local Access Network (WLAN) communication module, an NFC communication module, and a Zigbee communication module to transmit signals at a short distance. It may include various short-range communication modules that transmit and receive.

Wired communication modules include various wired communication modules, such as Controller Area Network (CAN) communication modules, Local Area Network (LAN) modules, Wide Area Network (WAN) modules, or Value Added Network (VAN) modules. In addition to communication modules, various cable communications such as USB (Universal Serial Bus), HDMI (High Definition Multimedia Interface), DVI (Digital Visual Interface), RS-232 (recommended standard 232), power line communication, or POTS (plain old telephone service) modules may be included.

The wired communication module may further include a Local Interconnect Network (LIN).

In addition to the WiFi module and the WiBro module, wireless communication modules include global system for mobile communication (GSM), code division multiple access (CDMA), wideband code division multiple access (WCDMA), and universal mobile telecommunications system (UMTS). ), a wireless communication module supporting various wireless communication schemes such as Time Division Multiple Access (TDMA) and Long Term Evolution (LTE).

When a start-on command is received through a start button or a remote controller, the first processor 190 receives information about a current state of change (SOC) of the battery and an initial temperature of the battery from the battery management device 160 .

The first processor 190 receives information about a current state of change (SOC) of the battery and a current temperature of the battery from the battery management device 160 while driving.

The first processor 190 may obtain external temperature information from detection information detected through the external temperature detection unit 176 or obtain external temperature information from information transmitted from the server 2 .

When it is determined that the navigation mode is selected, the first processor 190 checks the destination information received through the input unit 171, obtains the current location information as departure information, and travels from the departure point to the destination based on the departure location information and the destination information. The display unit 172 is controlled to search for a route and display route information on the searched route.

The first processor 190 may obtain speed limit information and gradient information of each link in a route based on at least one of navigation information and ADAS map information.

The first processor 190 may transmit source information, destination information, route information, initial temperature information of the battery, and outside temperature information to the server 2 . At this time, the first processor 190 may receive road information for each link within the route from the server 2 and may receive big data for each link within the route.

Road information may include at least one of location information, gradient information, and speed limit information of each link. Here, the speed limit information may be information for estimating the driving speed of the vehicle.

The big data may include the initial temperature of the battery at the time of startup, the external temperature, and expected temperature information of the battery corresponding to the driving time. Here, the predicted temperature information of the battery may include temperature change information of the battery corresponding to the lapse of driving time.

The expected temperature information of the battery may be battery temperature information that changes at a predetermined time period.

Big data may include a map of the battery's discharge output.

Big data may include driving time information for each link, distance information for each link, and battery discharge output information for each link.

The first processor 190 obtains requested output information for each link, obtains battery discharge output information for each link, compares the requested output information for each link with the battery discharge output information, and determines that the requested output for each link is greater than the battery discharge output. The temperature of the battery may be controlled so that the output of the battery increases based on the information about the identified link after checking the large link.

The first processor 190 may receive request output information for each link from the server 2 when acquiring the requested output information for each link.

When acquiring the requested output information for each link, the first processor 190 may obtain the requested output information for each link based on the road information for each link transmitted from the server 2 .

The server may include, as road information for each link, a friction coefficient for each link, gradient information for each link, travel speed information for each link, and air friction coefficient.

Here, the driving speed information for each link may include limit speed information and may include average driving speed information of other vehicles.

The friction coefficient for each link, slope information, and driving speed information may be different for each road, and the air friction coefficient may be different for each region and outside temperature.

The first processor 190 determines the driving force required to drive the vehicle based on the friction coefficient of the road for each link, the air friction coefficient for the road for each link, the preset front projected area, the slope information of the road for each link, and the driving speed information for each link. Acquired driving force for each link may be obtained, and requested output information for each link may be obtained based on the obtained driving force for each link, preset angular distance information, and driving speed information for each link.

F = μ*m*g*Cosθ + m*g*Sinθ + π*ℓρ*Cd*FA*v ²

μ: friction coefficient, ρ: air friction coefficient, CdxFA: front projected area, θ: slope information, v: driving speed information

The first processor 190 acquires the wheel-side required torque (N*m) based on the driving force F and the preset companion diameter 2π, and obtains the wheel-side required torque (N*m) and the driving speed (motor ( rpm)/60) to obtain the required power (kW).

Required power (kW) = Required torque on the wheel side (Nm) * 2π * motor (rpm)/60

The first processor 190 may obtain user driving information and correct requested output information based on the acquired user driving information.

Here, the user's driving information may be a coefficient corresponding to the driver's driving tendency.

The user's driving information may be a ratio between energy used by the user's vehicle when driving and energy used by other vehicles on one link.

As shown in FIG. 4 , the driving information of the user may be a ratio between average energy used when the user's vehicle drives multiple times on one link and energy used when other vehicles drive multiple times.

When obtaining battery discharge output information for each link, the first processor 190 may obtain battery discharge output information for each link from a pre-stored table.

The table stored in advance may be big data received from the server 2 .

The table may store discharge output information of the battery corresponding to the external temperature and the initial temperature of the battery.

The first processor 190 may correct the requested output information based on the preset weight of the vehicle, or correct the requested output information based on the preset vehicle weight and occupant weight.

When obtaining battery discharge output information for each link, the first processor 190 may obtain battery discharge output information for each link based on the initial temperature of the battery, the outdoor temperature, and the requested output information for each link.

As shown in FIG. 5 , the battery self-heats while using current. Accordingly, it can be seen that the battery temperature of the vehicle increases as the driving time elapses. That is, it can be seen that the temperature of the battery is higher at the end of driving than at the start of driving.

It can be seen that the discharge output of the battery also increased in response to the temperature rise of the battery.

The first processor 190 may obtain expected temperature information of the battery changed after a predetermined time and discharge output information of the battery after a predetermined time based on the initial temperature information of the battery, the outside temperature information, and the requested output information.

The first processor 190 may obtain battery discharge output information for each link based on the distance information and power consumption information for each link.

Battery discharge output per link (kWh) = Distance per link (km) X Power consumption (km/kWh)

Here, the fuel efficiency is experimentally calculated according to the driving speed of the vehicle.

The discharge output of the battery may be corrected according to the external temperature and the initial temperature of the battery, but may be corrected according to the passage of time.

The first processor 190 compares the requested output information obtained for each link with the discharge output information of the battery, identifies a link in which the obtained requested output information is greater than the battery discharge output information, and arrives at the starting point of the checked link. Time information may be obtained, and a battery temperature raising command may be transmitted to the battery management device 160 based on the obtained arrival time information.

The first processor 190 compares the corrected requested output information for each link with the discharge output information of the battery, identifies a link having a corrected requested output greater than the discharge output of the battery, and provides arrival time information for reaching the starting point of the checked link. may be obtained and a command for raising the temperature of the battery may be transmitted to the battery management device 160 based on the arrival time information.

As shown in FIGS. 6 and 7 , when link 1, link 2, link 3, and link 4 exist from the source to the destination, the first processor 190 outputs a request corrected by the user's driving information for each link. Acquire

The first processor 190 obtains battery expected temperature information changed for each link based on arrival time information for each link, outdoor temperature information, and initial temperature information of the battery, and outputs the obtained expected temperature information of the battery for each link and a corrected request. Obtain discharge output information of the battery based on the information.

The first processor 190 compares the discharge output information of the battery and the requested output information for each link, identifies a link in which the corrected requested output is greater than the discharge output of the battery, and obtains arrival time information for reaching the starting point of the checked link. The temperature increase of the battery is controlled based on the arrival time information.

As shown in FIGS. 6 and 7 , the first processor 190, when the corrected requested output information is greater than the discharge output information of the battery, is link 3, the arrival time information of reaching the starting point of link 3 When the acquisition and arrival time is 35 minutes, the temperature increase of the battery can be controlled before 35 minutes from the start at the starting point.

The first processor 190 acquires required temperature information of the battery to satisfy the required output in link 3, obtains expected temperature information of the battery when the starting point of link 3 is reached, and acquires the obtained required temperature of the battery. Obtains the temperature increase value of the battery to be raised based on the information and the expected temperature information of the battery, obtains the required time required for the temperature increase of the battery to reach the obtained temperature increase value, and obtains the required time and the start of link 3 The temperature of the battery may be controlled based on the arrival time of the point.

A required temperature of the battery corresponding to a required output of the battery or a discharge output of the battery may be stored as a table, and information on a required time corresponding to a temperature increase value of the battery may also be stored as a table.

When it is assumed that the time to reach the start point of link 3 is 35 minutes and the time required to increase the temperature of the battery is 5 minutes, the first processor 190 operates the heating unit at 30 minutes from the start of driving from the starting point. can control.

The first processor 190 checks the driving speed information of the vehicle and determines whether the time to reach the starting point of link 3 changes based on the current location information, driving speed information, and distance information to link 3, and When it is determined that the time to reach the starting point has changed, it is also possible to adjust the operation timing of the heating unit based on the changed time information.

The first processor 190 re-acquires battery discharge output information in link 4 based on required temperature information of the battery in link 3, outside temperature information, and driving time in link 3, and obtains the re-acquired battery discharge output. It is also possible to compare the requested output information in link 4 with the discharge output information of the battery based on the information.

The first processor 190 may also control the temperature of the battery by directly controlling the heating unit.

The first processor 190 may obtain gradient information of a road for each link based on at least one of navigation information and ADAS map information while the vehicle is driving.

The first processor 190 may obtain gradient information of each link based on the gradient information detected by the gradient detection unit while the vehicle is driving and the current location information of the vehicle.

The first processor 190 may check driving speed information for each link based on the driving speed information detected by the speed detection unit during driving and the current location information of the vehicle.

For example, the first processor 190 may acquire wheel rotation speeds detected by a plurality of wheel speed sensors and obtain a driving speed based on the acquired rotation speeds. The first processor 190 may obtain the driving speed based on the acceleration detected by the acceleration sensor. The first processor 190 may obtain the driving speed of the vehicle based on detection information output from the plurality of wheel speed sensors and detection information output from the acceleration sensor.

The first processor 190 may also acquire vehicle location change information based on the location information of the location receiving unit and driving speed information based on the obtained location change information.

The first processor 190 receives SOC information on the SOC of the battery from the battery management device 160 while driving, obtains SOC information of the battery for each link while driving, and obtains SOC information of the battery for each link. It is also possible to obtain battery discharge output information based on the information and store the obtained battery discharge output information as battery consumption energy for the user's driving tendency.

The first processor 190 may transmit inclination information for each link, driving speed information, and detected battery temperature information to the server during driving or after driving is completed.

The first processor 190 may transmit link information and discharge output information for each link to the server during driving or after driving is completed.

The first processor 190 determines whether the vehicle travels on the same route as the route traveled in the past based on the navigation information, and if it is determined that the vehicle travels on the same route, it acquires the actual discharge output of the battery for each link for the same route, and obtains the actual It is also possible to obtain user driving information based on the discharge output (see FIG. 4).

Through this, the server can provide big data.

The first processor 190 includes a memory (not shown) that stores data for an algorithm or a program that reproduces the algorithm for controlling the operation of components in the vehicle, and performs the above-described operation using the data stored in the memory. It may be implemented as a processor (not shown). In this case, the memory and the processor may be implemented as separate chips. Alternatively, the memory and the processor may be implemented as a single chip.

The memory 191 can also store information on the front projected area and the accompanying mirror of the vehicle.

The memory 191 stores navigation information and ADAS map information, and stores map information, road location information, and gradient information for each road location.

The memory 191 stores source information and destination information, and stores route information corresponding to the same source and destination information.

The memory 191 stores big data provided from the server.

The big data includes initial temperature information of the battery, outside temperature information, battery discharge output information corresponding to driving time, and expected temperature information of the battery.

Big data may include road information for each link.

The road information for each link may include location information of a road for each link, a friction coefficient of a road for each link, road slope information and travel speed information, and an air friction coefficient.

Here, the driving speed information may be average driving speed information driven by other vehicles or speed limit information of the road.

The memory 191 stores user identification information and user driving information for each user.

The memory 191 may include a nonvolatile memory device such as a cache, read only memory (ROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), and flash memory, or RAM ( It may be implemented as at least one of a volatile memory device such as Random Access Memory), a hard disk drive (HDD), or a storage medium such as a CD-ROM, but is not limited thereto.

Meanwhile, each component shown in FIG. 3 means software and/or hardware components such as a Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuit (ASIC).

As shown in FIG. 8 , the battery management device 160 includes a current sensor 161, a voltage sensor 162, a temperature sensor 163, a second processor 164, and a heating unit 165.

The current sensor 161 detects current flowing through the battery 110 .

The voltage sensor 162 detects the voltage of the output terminal of the battery 110 .

The temperature sensor 163 detects the temperature of the battery 110 .

The current sensor may be provided for each cell or module of the battery.

A voltage sensor and a temperature sensor may also be provided for each cell or module of the battery.

The second processor 164 monitors the state of charge of the battery based on the detected current of the battery.

The second processor 164 may also monitor the state of charge of the battery based on the detected current and voltage of the battery.

The second processor 164 may also monitor the state of charge (SOC) of the battery based on the current, voltage, and temperature of each cell of the battery.

The second processor 164 may also monitor the state of charge (SOC) of the battery based on the current, voltage, and temperature of each module of the battery.

The second processor 164 may obtain the amount of charge of the battery corresponding to the current, voltage, and temperature of the battery from a pre-stored table.

A charge amount of a battery corresponding to a correlation between current, voltage, and temperature of the battery may be matched to a pre-stored table.

The second processor 164 outputs SOC information on the SOC of the monitored battery to the first processor 190 . Here, the state of charge of the battery may include the amount of charge of the battery.

The second processor 164 may control the operation of the heating unit 165 in response to a control command of the first processor 190 .

The second processor 164 may also adjust the heating capability of the heating unit 165 by adjusting a voltage or current applied to the heating unit 165 .

The second processor 164 may also control the heating unit 165 by acquiring the requested output and the discharge output of the battery. Here, the configuration for obtaining the requested output and the discharge output of the battery is the same as that of the first processor 190, so description thereof is omitted.

The heating unit 165 may include one or two or more heaters provided adjacent to the battery 110 .

The heating unit 165 generates heat in response to a control command of the second processor 164 .

The second processor 164 and the first processor 190 of the battery management device 160 may be implemented as one processor.

Meanwhile, each component of the battery management device shown in FIG. 8 means software and/or hardware components such as a Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuit (ASIC).

Meanwhile, the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. Instructions may be stored in the form of program codes, and when executed by a processor, create program modules to perform operations of the disclosed embodiments. The recording medium may be implemented as a computer-readable recording medium.

Computer-readable recording media include all types of recording media in which instructions that can be decoded by a computer are stored. For example, there may be read only memory (ROM), random access memory (RAM), magnetic tape, magnetic disk, flash memory, optical data storage device, and the like.

As described above, the disclosed embodiments have been described with reference to the accompanying drawings. A person skilled in the art to which the present invention pertains may change the technical spirit or essential features of the present invention in a different form from the disclosed embodiments. It will be understood that the invention may be practiced. The disclosed embodiments are illustrative and should not be construed as limiting.

1: vehicle 110: battery
120: motor 130: motor driving unit
140: reducer 160: battery management unit
170: user interface 180: communication unit
190: first processor 191: memory
2: Server 3: Infrastructure

Claims (20)

In the battery management device provided in the vehicle,
a communication unit that communicates with the server;
a temperature sensor that detects the temperature of the battery;
a heating unit provided adjacent to the battery; and
From the information received from the server, external temperature information, a discharge output map of the battery, and road information for each link in a route from a starting point to a destination are obtained, and based on the obtained road information for each link and the user's driving information stored in advance, Obtains requested output information for each link, obtains battery discharge output information for each link based on the battery discharge output map, and determines whether the requested output is determined based on the requested output information for each link and the discharge output information for each link. A battery management device including a processor that checks a link having a greater discharge output and controls an operation of the heating unit based on arrival time information for reaching a start point of the checked link. The method of claim 1, wherein the processor,
Checking the discharge energy of the vehicle consumed while driving a first link among the plurality of links in the path, checking the discharge energy of another vehicle driving the first link among the information transmitted from the server, A battery management device that obtains and stores driving information of the user based on the discharge energy of the vehicle and the discharge energy of the other vehicle. The method of claim 1, wherein the processor,
The average discharge energy of the vehicle consumed when the first link among the plurality of links in the route is driven multiple times is checked, and among the information transmitted from the server, the average discharge energy of other vehicles that have traveled the first link multiple times is checked. A battery management device that checks energy and obtains and stores driving information of the user based on the average discharge energy of the vehicle and the average discharge energy of the other vehicle. The method of claim 1, wherein the discharge output map of the battery,
and a table in which expected temperature information of the battery corresponding to the external temperature information and initial temperature information of the battery is matched with discharge output information of the battery corresponding to the expected temperature information of the battery. The method of claim 1, wherein the road information for each link comprises:
A battery management device including the friction coefficient for each link, the slope for each link, the air friction coefficient for each link, and the driving speed for each link. The method of claim 5, wherein the driving speed for each link is
A battery management device that is the highest driving speed among the speed limit for each link, the average driving speed of other vehicles for each link, or the driving speed of the other vehicles. The method of claim 1, wherein the processor,
From the information received from the server, the required temperature information of the battery corresponding to the requested output of the checked link is checked, the expected temperature information of the battery when the start point of the checked link is reached is checked, and the required temperature information of the battery is checked. A battery management device that obtains required time information for temperature increase of the battery based on temperature information and expected temperature information of the battery, and controls an operation of the heating unit based on the obtained required time information and the arrival time. The method of claim 1, wherein the processor,
A battery management device for controlling an operation of the heating unit before the arrival time. The method of claim 1, wherein the processor,
Required temperature information of the battery corresponding to the requested output from the checked link is checked, and the required time for temperature rise of the battery is based on the current temperature information of the battery detected by the temperature sensor and the required temperature information of the battery. A battery management device that obtains information and controls an operation of the heating unit based on the obtained required time information and the arrival time. The method of claim 1, wherein the processor,
and reacquiring discharge output information of a battery in at least one link next to the checked link based on the necessary temperature information of the checked link and the outdoor temperature information. user interface;
a location receiver for receiving location information;
a communication unit that communicates with the server;
a battery management device that monitors a temperature of a battery and a state of charge of the battery;
a heating unit provided adjacent to the battery; and
Departure information is obtained based on the location information received by the location receiving unit, route information is obtained based on the obtained departure point information and destination information input to the user interface, and outside temperature information is obtained from the information received from the server. Obtains the battery discharge output map and road information for each link in the path information, obtains requested output information for each link based on the obtained road information for each link and previously stored driving information of the user, and obtains the discharge output of the battery Obtain battery discharge output information for each link based on the map, identify a link whose requested output is greater than the discharge output based on the requested output information for each link and the battery discharge output information for each link, and start the identified link. A vehicle including a processor that controls an operation of the heating unit based on arrival time information for reaching a point. The method of claim 11, wherein the processor,
Checking the discharge energy of the vehicle consumed while driving a first link among a plurality of links in the route information, checking the discharge energy of another vehicle driving the first link among the information transmitted from the server, A vehicle that acquires and stores driving information of the user based on the discharge energy of the vehicle and the discharge energy of the other vehicle. The method of claim 11, wherein the processor,
Among the plurality of links in the route information, the average discharge energy of the vehicle consumed when driving the first link multiple times is checked, and among the information transmitted from the server, the average discharge energy of other vehicles that have traveled the first link multiple times is determined. A vehicle that checks discharge energy, and obtains and stores driving information of the user based on the average discharge energy of the vehicle and the average discharge energy of the other vehicles. 12. The method of claim 11, wherein the discharge output map of the battery,
A vehicle including a table in which expected temperature information of the battery corresponding to the external temperature information and initial temperature information of the battery is matched with discharge output information of the battery corresponding to the expected temperature information of the battery. The method of claim 11, wherein the road information for each link comprises:
Vehicle including the friction coefficient for each link, the slope for each link, the air friction coefficient for each link, and the driving speed for each link. The method of claim 15, wherein the driving speed for each link is
A vehicle with the highest driving speed among the speed limit for each link, the average driving speed of other vehicles for each link, or the driving speed of the other vehicles. The method of claim 11, wherein the processor,
From the information received from the server, the required temperature information of the battery corresponding to the requested output of the checked link is checked, the expected temperature information of the battery when the start point of the checked link is reached is checked, and the required temperature information of the battery is checked. A vehicle that obtains required time information for temperature increase of the battery based on temperature information and expected temperature information of the battery, and controls an operation of the heating unit based on the obtained required time information and the arrival time. The method of claim 17, wherein the processor,
A vehicle that acquires battery discharge output information again in at least one link next to the checked link based on the necessary temperature information of the checked link and the outside air temperature information. According to claim 11,
an outdoor temperature detection unit that detects an outdoor temperature;
a gradient detection unit that detects a gradient;
Further comprising a speed detector for detecting the traveling speed,
The processor is configured to include location information while driving, gradient information detected by the gradient detection unit, driving speed information detected by the speed detection unit, and outside temperature information detected by the outside temperature detection unit, and information monitored by the battery management device. A vehicle that transmits information about the state of charge of the battery to the server. The method of claim 11, wherein the processor,
When obtaining the requested output for each link, the requested output for each link is obtained based on at least one of a front projected area and a weight.

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