KR102536480B1 - Vehicle and controlling method thereof - Google Patents

Abstract

A vehicle according to an embodiment of the disclosed invention includes a fuel tank; display unit; a sensing unit that senses a charged amount of fuel in the fuel tank; and a controller configured to determine a driving distance based on the detected charging amount and control the display unit to display the determined driving distance.

Description

Vehicle and its control method {VEHICLE AND CONTROLLING METHOD THEREOF}

It relates to a vehicle including a fuel cell and a control method thereof.

In general, a fuel cell is a power generation device that generates electrical energy by electrochemically reacting a fuel and an oxidizer. Typically, electric energy can be generated using hydrogen as a fuel and oxygen as an oxidizing agent.

Unlike conventional internal combustion engine vehicles, fuel cell vehicles using hydrogen as fuel are driven by charging gaseous hydrogen in a fuel tank and then using it as fuel. The charging pressure for charging hydrogen into the fuel tank must be greater than the gas pressure inside the fuel tank, and the charging amount can be determined by the charging pressure of the fuel charger provided at the charging station.

One aspect provides a vehicle capable of providing information on a driving distance based on a charged amount of fuel and a control method thereof.

As a technical means for achieving the above-described technical problem, a vehicle according to an aspect includes a fuel tank; display unit; a sensing unit that detects a filled amount of fuel in the fuel tank; and a controller configured to determine a driving distance based on the detected charge amount and control the display unit to display the determined driving distance.

In addition, the control unit determines that the fuel is completely charged when the detected charge amount is equal to or greater than a predetermined first reference value, and determines a fuel shortage point based on the detected charge amount when it is confirmed that the fuel is charged. and determine the possible driving distance based on the determined fuel shortage point.

In addition, the control unit may determine a charge amount detected when the fuel is completely charged as a charging completion point, and determine the fuel shortage point based on the determined charging completion point.

The control unit may determine the driving distance based on the amount of fuel from the charging completion point to the determined fuel shortage point.

Also, if the fuel is not completely charged, the control unit may determine a fuel shortage point based on a predetermined second reference value, and determine the driving distance based on the determined fuel shortage point.

In addition, the storage unit; and a communication unit configured to receive location information, wherein the controller determines a location of a charging station based on the received location information when the fuel is filled in the fuel tank, and when the fuel is completely filled. It is possible to match the detected charge amount with the location of the determined charging station and store it in the storage unit.

In addition, when the determined location of the charging station is stored in the storage unit, the control unit may determine the driving distance based on a charge amount corresponding to the stored location of the charging station.

In addition, when the determined location of the charging station is stored in the storage unit, the control unit determines whether the charging amount detected when the fuel is completely charged is the same as the charging amount corresponding to the stored location of the charging station. , If the detected charging amount when the fuel is fully charged is not the same as the stored charging amount corresponding to the location of the charging station, the stored charging amount may be updated with the detected charging amount.

In addition, when the determined location of the charging station is not stored in the storage unit, the control unit determines a fuel shortage point based on a predetermined second reference value, and the driving distance based on the determined fuel shortage point. can decide

The sensing unit may detect a charging pressure of the fuel charged in the fuel tank, and the control unit may match the detected charging pressure with the determined position of the charging station and store the detected charging pressure in the storage unit.

A method for controlling a vehicle according to another aspect includes detecting an amount of fuel charged in a fuel tank; determining a possible driving distance based on the detected amount of charge; and displaying the determined driving distance.

In addition, determining the driving distance based on the detected charging amount may include determining that the fuel is fully charged when the detected charging amount is greater than or equal to a predetermined first reference value, and when it is confirmed that the fuel is fully charged, Determining a fuel shortage point based on the detected charging amount, and determining the possible driving distance based on the determined fuel shortage point.

In addition, determining the driving distance based on the detected charging amount determines the detected charging amount as a charging completion point when the fuel is completely charged, and determines the fuel shortage point based on the determined charging completion point. and determining the driving distance based on the determined fuel shortage point.

Determining the drivable distance based on the detected charging amount may include determining the drivable distance based on a fuel amount from the charging completion point to the determined fuel shortage point.

In addition, determining the driving distance based on the detected charging amount may include determining a fuel shortage point based on a predetermined second reference value when the fuel is not completely charged, and determining the driving distance based on the determined fuel shortage point. Determining the possible distance; may include.

Also, receive location information; determining a location of a charging station based on the received location information when the fuel is filled in the fuel tank; and matching and storing the detected charging amount and the determined location of the charging station when the fuel is completely charged.

In addition, determining the drivable distance based on the detected charge amount may include determining the drivable distance based on a charge amount corresponding to the stored charge station location when the determined charging station location is stored; can include

In addition, if the determined location of the charging station is stored, determining whether the detected charging amount when the fuel is completely charged is the same as the charging amount corresponding to the stored charging station location; and updating the stored charge amount with the sensed charge amount if the sensed charge amount when the fuel is completely charged is not the same as the charge amount corresponding to the stored location of the charging station.

In addition, determining the driving distance based on the detected charging amount may include determining a fuel shortage point based on a predetermined second reference value when the determined location of the charging station is not stored in the storage unit, and Determining the driving distance based on the determined fuel shortage point; may include.

In addition, detecting the charging pressure of the fuel charged in the fuel tank; and matching the sensed charging pressure with the determined position of the charging station to store in the storage unit.

According to the vehicle and the control method according to one aspect, it is possible to determine a consistent driving distance. Thus, driver's convenience and reliability can be increased.

1 is a view showing the appearance of a vehicle according to an exemplary embodiment.
2 is a diagram illustrating an internal configuration of a vehicle according to an exemplary embodiment.
3 is a control block diagram of a vehicle according to an exemplary embodiment.
4 is a diagram for explaining an operation of determining a driving distance of a vehicle according to an exemplary embodiment.
5 is a flowchart of a method for controlling a vehicle according to an exemplary 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 belongs is omitted. The term 'unit, module, member, or block' used in the specification may be implemented as software or hardware, and according to embodiments, a plurality of 'units, modules, members, or blocks' may be implemented as one component, It is also possible that one 'part, module, member, block' 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 without excluding other components unless otherwise stated.

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 view showing the appearance of a vehicle according to an exemplary embodiment.

Referring to FIG. 1 , a vehicle 1 according to an embodiment of the present invention includes a main body 80 forming the exterior of the vehicle 1, wheels 93 and 94 for moving the vehicle 1, and wheels 93 , 94), a door 84 that shields the inside from the outside, a windshield 87 that provides a front view of the vehicle 1 to the driver inside the vehicle 1, and a vehicle to the driver. (1) Side mirrors 91 and 92 providing a view to the rear, and a rear window 90 installed on the rear side of the vehicle body 80 to provide a view of the rear of the vehicle 1, and the body 80 includes A hood 81, a front fender 82, a door 84, a trunk lid 85, and a quarter panel 86 may be included.

Doors 84 are rotatably provided on the left and right sides of the main body 80 so that the driver can get inside the vehicle 1 when opened, and when closed, the inside of the vehicle 1 is shielded from the outside. can

The wind screen 87 is provided on the front upper side of the main body 80 so that the driver inside the vehicle 1 can obtain visual information of the front of the vehicle 1. In addition, the side mirrors 91 and 92 include a left side mirror 91 provided on the left side of the main body 80 and a right side mirror 92 provided on the right side of the body 80, so that the driver inside the vehicle 1 can 1) It enables acquisition of visual information from the side and rear.

In addition, the vehicle 1 may include a sensing device such as a proximity sensor for detecting an obstacle or another vehicle behind, and a rain sensor for detecting whether or not there is precipitation and the amount of precipitation.

2 is a diagram illustrating an internal configuration of a vehicle according to an exemplary embodiment.

An air conditioner 16 may be installed inside the vehicle 10 . The air conditioner 16 is a device that automatically controls the air conditioning environment, including indoor and outdoor environmental conditions of the vehicle 1, air intake/exhaust, circulation, cooling/heating conditions, etc., or controls in response to a user's control command. means For example, both heating and cooling may be performed, and the temperature of the vehicle interior 10 may be controlled by discharging heated or cooled air through a vent.

Meanwhile, inside the vehicle 10, a dashboard 14 in which various devices for the driver to operate the vehicle 1 are installed, a driver's seat 15 for the driver of the vehicle 1 to sit, and the vehicle 1 ) may include clusters 51 and 52 capable of displaying operation information and the like.

The dashboard 14 protrudes from the lower part of the windscreen 11 toward the driver, and allows the driver to operate various devices installed on the dashboard 14 while looking forward.

The driver's seat 15 is provided at the rear of the dashboard 14 so that the driver can drive the vehicle 1 in a stable posture while keeping an eye on the front of the vehicle 1 and various devices on the dashboard 14 .

The clusters 51 and 52 may be installed on the driver's seat 15 side of the dashboard 14, and include a driving speed gauge 51 displaying the driving speed of the vehicle 1 and the rotational speed of the power unit (not shown). It may include an rpm gauge 52 that displays.

In addition to this, the clusters 51 and 52 include a tachometer, speedometer, coolant temperature gauge, turn indicator, high beam indicator, warning lamp, seat belt warning lamp, odometer, odometer, automatic shift selector indicator, door open warning lamp, fuel warning lamp, A low battery warning light may be placed.

In addition, the clusters 51 and 52 may include the cluster display 50 capable of displaying the aforementioned vehicle status, information related to vehicle driving, information related to manipulation of a multimedia device, and the like.

According to embodiments, a display 70 may be installed on the dashboard 14 of the vehicle 1 .

The display 70 may display a user interface (UI) providing information related to the vehicle 1 to the driver in the form of images or text. To this end, the display 70 may be formed by being embedded in the center fascia 60 . However, the installation example of the display is not limited thereto, and the display 70 may be provided to be separated from the center fascia 60 of the vehicle 1.

Also, the display 70 may be utilized as a navigation device.

A navigation device may provide a route to a destination to a user. In addition, the navigation device may display various control screens related to control of devices installed in the vehicle 1 or screens related to additional functions executable by the navigation device.

In addition, the inside of the vehicle 10 may include a separate jog dial 60 for manipulating various devices of the vehicle. The jog dial 60 is driven not only by rotating or applying pressure, but also by using a user's finger or a tool with a separate touch recognition function by using a touch pad with a touch recognition function. It is possible to perform handwriting recognition for

The steering device for controlling the operation of the vehicle includes a steering wheel 42 receiving a driving direction input from a driver, a steering gear (not shown) that converts rotational motion of the steering wheel 42 into reciprocating motion, and a steering gear (not shown). A steering link (not shown) may be included to transmit reciprocating motion to the front wheel 93 . Such a steering device can change the driving direction of the vehicle 1 by changing the direction of the rotating shaft of the wheel.

In addition, the vehicle 1 may receive power from a fuel cell system, and the fuel cell system may include a fuel tank ( 120 in FIG. 3 ) in which fuel is stored. The vehicle 1 may generate electric energy by charging fuel in a fuel tank ( 120 in FIG. 3 ).

3 is a control block diagram of a vehicle according to an exemplary embodiment.

Referring to FIG. 3 , a vehicle 1 according to an embodiment includes a fuel tank 110 prepared to store fuel, a detector 120 for detecting various information about the fuel tank 110, and It may include a control unit 130, a display unit 140, and a communication unit 150 that control overall functions.

First, the fuel tank 110 may store fuel. Hydrogen may be used as the fuel stored in the fuel tank 110 . In this case, hydrogen itself may be stored in the fuel tank 110 . However, in some cases, hydrocarbon-based fuel such as methanol, gasoline, and LPG may be stored in the fuel tank 110 . In this case, the vehicle 1 may further include a reformer generating hydrogen by decomposing hydrocarbon-based fuel, and the generated hydrogen may be used as fuel.

The detector 120 may detect various pieces of information related to the fuel tank 110 .

Specifically, the sensor 120 may detect the amount of fuel stored in the fuel tank 110 . To this end, the sensor 120 may measure the amount of fuel stored in the fuel tank 110 in real time.

Also, the sensing unit 120 may detect a charging pressure of fuel charged in the fuel tank 110 . At this time, the sensor 120 may detect the effective charging pressure of the fuel charged in the fuel tank 110 . To this end, the sensing unit 120 may be implemented as a pressure sensor.

The sensing unit 120 may be installed at various locations within the fuel cell system including the fuel tank 110 and may be implemented with various sensors for sensing the above-described information.

The display unit 140 may provide information to the user by displaying various pieces of information related to the vehicle 1 .

Specifically, the display unit 140 may display various information related to driving of the vehicle 1 as well as information on the internal configuration of the vehicle 1 . In particular, the display unit 140 may display the driving distance of the vehicle 1 .

To this end, the display unit 140 may include the aforementioned display 70 and may also include the cluster display 50 .

On the other hand, the display unit 140 includes a cathode ray tube (CRT), a digital light processing (DLP) panel, a plasma display panel, a liquid crystal display (LCD) panel, Electro Luminescence (EL) Panel, Electrophoretic Display (EPD) Panel, Electrochromic Display (ECD) Panel, Light Emitting Diode (LED) Panel or Organic Light Emitting Diode Diode: OLED) panel, etc. may be provided, but is not limited thereto.

The communication unit 150 may receive a GPS signal and may receive location information including the GPS signal and map data. The location information received by the communication unit 150 may be used as a control basis when the controller 130 calculates the current location of the vehicle 1 .

To this end, the communication unit 150 may include a telematics terminal and may also include a wireless communication module that performs wireless communication with an external communication network. In addition to this, the communication unit 150 may further include one or more components. For example, the communication unit 300 may further include at least one of a short-range communication module and a wired communication module in addition to the wireless communication module.

The wireless communication module includes a WiFi module, a wireless broadband module, a global system for mobile communication (GSM), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA) , a wireless communication module supporting various wireless communication schemes such as Long Term Evolution (LTE).

The wireless communication module is a communication port connecting the communication network 2 and the control module, a transmitter for transmitting a signal for providing a telematics service, for example, a signal for executing an IVR (Interactive Voice Response) service ) and a wireless communication interface including a receiver for receiving a signal related to the provision of the telematics service. In addition, the wireless communication module may modulate the digital control signal output from the control module through the wireless communication interface into an analog type wireless signal under the control of the control module, and convert the analog type wireless signal received through the wireless communication interface into a digital control signal. A signal conversion module capable of demodulation into a digital control signal may be further included. At this time, the control module may be the same component as the control unit 200 to be described later, or may be included in the control unit 200.

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 communication modules such as Universal Serial Bus (USB), High Definition Multimedia Interface (HDMI), and Digital Visual Interface (DVI) may be included.

In addition, the communication unit 150 may further include a telematics terminal (not shown) for communicating with the outside in the vehicle interior 10 . Telematics is a compound word of telecommunication and informatics.

The controller 130 may determine various conditions related to fuel charging of the fuel tank 110 and may control internal components of the vehicle 1 based on the determined conditions.

The controller 130 may determine whether the vehicle 1 is in a refueling mode. In this case, the refueling mode means a mode in which fuel is charged in the fuel tank 110, and the control unit 130 determines that the vehicle 1 enters the refueling mode when fuel starts to be charged in the fuel tank 110. can be judged to be

For example, the controller 130 may determine that the vehicle 1 has entered a refueling mode when the amount of fuel stored in the fuel tank 110 detected by the sensor 120 increases.

Also, the control unit 130 may determine whether or not fuel is completely filled in the fuel tank 110 , that is, whether the fuel is completely filled, based on the amount of fuel detected by the sensing unit 120 . At this time, the controller 130 may compare the detected charging amount with a first predetermined reference value, and when the detected charging amount is equal to or greater than the first predetermined reference value, it may be determined that the fuel tank 110 is completely filled with fuel.

In this case, the first reference value may refer to a reference fuel amount that is considered to be filled with fuel. For example, the first reference value may be an amount of fuel corresponding to 7/8 of the capacity of the fuel tank 110, and the vehicle 1 has a charging amount equal to or greater than an amount of fuel corresponding to 7/8 of the capacity of the fuel tank 110. , it may be determined that the fuel for the fuel tank 110 is completely filled.

In addition, the control unit 130 determines the amount of fuel stored in the fuel tank 110 when it is determined that the fuel tank 110 is completely filled, that is, the fuel amount stored in the fuel tank 110 when it is considered that the fuel is completely filled. A charging completion point may be determined based on the charging amount. In this case, the charging completion point may refer to the amount of fuel at which the filling of the fuel into the fuel tank 110 is considered to be completed, that is, the filling amount at the point in time when the filling of the fuel is considered to be completed. Accordingly, the charging completion point may include not only a point where the fuel tank 110 is 100% filled, but also a point where the fuel is considered to be 100% filled even if the fuel tank 110 is not 100% filled.

In addition, the controller 130 may determine various pieces of information related to driving of the vehicle 1 . Specifically, the control unit 130 may determine the driving distance of the vehicle 1 .

The drivable distance may be determined based on the stored fuel amount. For example, the drivable distance may be determined by applying the learned driving fuel efficiency to the amount of fuel from the current point to the point of fuel shortage. In this case, the fuel shortage point may mean an estimated fuel amount at which the vehicle 1 will stop. The fuel shortage point may refer to a minimum amount of fuel required for the vehicle 1 to drive. The fuel shortage point may not necessarily be zero, and may have a value greater than zero.

The control unit 130 may determine the driving distance of the vehicle 1 based on various situations and information related to charging of the vehicle 1 described above.

The control unit 130 may determine the driving distance of the vehicle 1 based on the amount of fuel stored in the fuel tank 110 , that is, the amount of charge detected by the detector 120 . To this end, the control unit 130 may determine a fuel shortage point, and determine a possible driving distance of the vehicle 1 based on the determined fuel shortage point. A detailed description related to this will be described later.

To this end, the control unit 130 uses a memory (not shown) for storing data on an algorithm for controlling the operation of components in the vehicle 1 or a program that reproduces the algorithm, and the data stored in the memory as described above. It may be implemented as a processor (not shown) that performs an operation. 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.

In addition to this, the vehicle 1 may further include a storage unit (not shown). A storage unit (not shown) may store various information related to the vehicle 1 .

To this end, the storage unit (not shown) includes nonvolatile memory such as cache, read only memory (ROM), programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), and flash memory. It may be implemented as at least one of a memory device or a volatile memory device such as RAM (Random Access Memory), a hard disk drive (HDD), or a storage medium such as a CD-ROM, but is not limited thereto. The storage unit (not shown) may be a memory implemented as a separate chip from the processor described above in relation to the controller 130, or may be implemented as a single chip with the processor.

4 is a diagram for explaining an operation of determining a driving distance of a vehicle according to an exemplary embodiment.

FIG. 4(a) is a diagram for explaining a driving range determining operation of a conventional vehicle, and FIG. 4(b) is a diagram for explaining a driving distance determining operation of a vehicle 1 according to an exemplary embodiment. .

As shown in (a) of FIG. 4 , a fixed fuel shortage point X1 is applied to the displayed driving distance in a conventional vehicle.

Specifically, when it is determined that the vehicle is fully charged, the drivable distance may be determined based on the fuel amount for the section S1 from the charging complete point to the fuel shortage point X1. In addition, when the fuel is not completely charged and has a specific charge amount X2, the drivable distance may be determined based on the amount of fuel for the section S2 from the charge amount X2 to the fuel shortage point X1.

This driving distance may be more important information to the driver in the case of a fuel cell vehicle, because the number of charging stations for a fuel cell vehicle is not very large.

In the case of a fuel cell vehicle, a charging amount is determined by a charger pressure provided at a charging station, but the charger pressure is different for each charging station. In this case, even when the vehicle is fully charged, since each charging station has a different charging pressure, that is, a different charger pressure, the charging completion point is different. Therefore, according to the operation of the driving distance of the conventional vehicle, a problem arises in that the driving distance is determined differently for each charging station.

If the driving range is different for each charging station, it may cause inconvenience to the driver and decrease reliability of vehicle functions. Therefore, it is necessary to determine the drivable distance by considering different charging completion points for each charging station so that the drivable distance is more consistent.

Referring to (b) of FIG. 4 , the vehicle 1 according to an exemplary embodiment may determine a fuel shortage point by considering different charging pressures for each charging station.

The controller 130 may determine a fuel shortage point based on the detected charging amount when it is determined that the vehicle 1 is fully charged. Specifically, the controller 130 may lower the fuel shortage point when it is determined that the charging is completed, that is, the charging completion point is lowered. In addition, the controller 130 may increase the fuel shortage point when the charging completion point increases.

For example, when the vehicle 1 refuels at a specific charging station, the charging amount when charging is completed, that is, the charging completion point may be 100%. In this case, the control unit 130 may determine the fuel shortage point as Y2 and determine the possible driving distance based on the amount of fuel for the section S3 from the 100% charging completion point to the fuel shortage point Y2.

As described above, the charging completion point at which the vehicle is estimated to be fully charged may be different for each charging station, and when the vehicle 1 refuels at another charging station, the charging completion point may not be 100% (Y3). In this case, the controller 130 may determine the fuel shortage point as Y1, based on the amount of fuel for the section S4 from the charging completion point Y3 to the fuel shortage point Y1 where the vehicle is considered to be fully charged. Thus, the driving distance can be determined.

In this case, the intervals S3 and S4 from the charging completion point to the fuel shortage point for determining the driving distance may be the same, and the control unit 130 calculates the amount of fuel obtained by subtracting a predetermined value from the charging completion point. It can be determined as a shortfall point.

Alternatively, the controller 130 may determine the amount of fuel at a predetermined ratio to the charging completion point as the fuel shortage point.

Through this, despite different charging pressures and charging completion points for each charging station, it is possible to determine a consistent driving range. Thus, driver's convenience and reliability can be increased.

In addition, the controller 130 may learn the charging pressure or charging completion point for each charging station. Specifically, when the control unit 130 describes the learning of the charging completion point for each charging station, the controller 130 can match the charging amount at the time of fuel charging completion, that is, the charging completion point and the location of the charging station, and store it. It is possible to learn the charging completion point for each charging station by storing it in a sub (not shown).

To this end, the controller 130 may determine the location of the vehicle 1 when fuel is being charged as the location of a charging station based on the location information received by the communication unit 150 . The controller 130 may classify the charging station based on the determined location of the charging station, and may store the location of the charging station and a charging completion point at the corresponding charging station together.

In addition, the controller 130 may update the stored charging completion point for each charging station. Specifically, the controller 130 changes the stored charge completion point for the corresponding charging station to the detected charge completion point when the charge completion point at the specific charging station is different from the stored charge completion point at the corresponding charging station, thereby completing charging for each stored charging station. You can update your branch.

When revisiting a charging station that has been visited, the controller 130 may determine a driving distance based on the learned charging completion point for each charging station.

Specifically, if there is a location identical to that of the vehicle 1 among the locations of the stored charging stations, the controller 130 may determine that the corresponding charging station has been revisited. The controller 130 may determine a fuel shortage point based on a charging completion point corresponding to a corresponding charging station among stored charging completion points for each charging station, and may determine a driving distance based on the determined fuel shortage point.

Since the learning operation of the charging pressure for each charging station by the control unit 130 is the same as the above-described learning operation of the charging completion point for each charging station, a detailed description thereof will be omitted.

Through this, since it is possible to learn different charging pressures and charging completion points for each charging station, it is possible to determine a more accurate driving distance. Thus, driver's convenience and reliability can be increased.

5 is a flowchart of a method for controlling a vehicle according to an exemplary embodiment.

Referring to FIG. 5 , the vehicle 1 according to an embodiment may check whether or not it is in a refueling mode (510). Specifically, the vehicle 1 may determine that the fueling mode has been entered when the amount of fuel stored in the fuel tank 110 increases.

When it is determined that the fueling mode is in place (YES in 510), the vehicle 1 may determine whether the charging station is the first visited (520). Specifically, the vehicle 1 may determine the current location based on the location information received from the outside, and if there is no location identical to the current location among the locations of the stored charging stations, it may be determined that the charging station has been visited for the first time.

If it is not the first charging station visited (No in 520), that is, if a charging station with a history of visits is revisited, the vehicle 1 may determine whether or not the charging amount is equal to or greater than a predetermined first reference value P (530). . In this case, the predetermined first reference value P may refer to a reference fuel amount for which the vehicle 1 is considered to be fully charged. For example, the predetermined first reference value P may be a fuel amount corresponding to 7/8 of the capacity of the fuel tank 110, and the vehicle 1 has a charging amount of 7/8 of the capacity of the fuel tank 110. It is possible to determine whether or not the amount of fuel corresponding to

When the detected charging amount is greater than or equal to the first predetermined reference value P (YES in 530), the vehicle 1 may determine a charging completion point (540). At this time, the charging completion point may mean a charging amount detected when the vehicle 1 is considered to be charged, and the vehicle 1 is a fuel charging amount at the time when the vehicle 1 is considered to be charged. can be determined as the charging completion point.

Specifically, when the detected charge amount is greater than or equal to the first predetermined reference value P (Yes in 530), the vehicle 1 may determine the charge completion point based on the learned charge completion point and the current charge amount. The vehicle 1 may compare the detected charge amount with the learned charge completion point, and when the detected charge amount is smaller than the charge amount at the learned charge completion point, determine the learned charge completion point as the charge completion point. Alternatively, the vehicle 1 may determine the detected charge amount as the charge completion point when the detected charge amount is equal to or greater than the charge amount at the learned charge completion point.

Thereafter, the vehicle 1 may determine a fuel shortage point based on the determined charging completion point (550). In this case, the fuel shortage point may mean an amount of fuel estimated to stop the vehicle. The fuel shortage point may refer to a minimum amount of fuel required for the vehicle 1 to drive. The fuel shortage point may not necessarily be zero, and may have a value greater than zero.

Specifically, the vehicle 1 may lower the fuel shortage point when the detected amount of charge, that is, the charge completion point, when charging is completed, may decrease, and may increase the fuel shortage point when the charging completion point increases. The vehicle 1 may determine the fuel amount obtained by subtracting a predetermined value from the charging completion point as the fuel shortage point, and may determine the fuel amount at a predetermined ratio to the charging completion point as the fuel shortage point.

When the fuel shortage point is determined, the vehicle 1 may determine a driving distance (560). Specifically, the vehicle 1 may determine the drivable distance based on the determined fuel shortage point, and may determine the drivable distance based on the amount of fuel for a section from the charging completion point to the fuel shortage point.

The vehicle 1 may learn the charging completion point for each charging station (570).

Specifically, the vehicle 1 may match the charging amount at the point in time when the fuel is completely charged, that is, the charging completion point and the location of the charging station, and store the result to learn the charging completion point for each charging station.

In addition, the vehicle 1 may learn the charging completion point for each charging station by updating the stored charging completion point for each charging station. When the charging completion point at a specific charging station is different from the stored charging completion point at the corresponding charging station, the vehicle 1 updates the stored charging completion point for each charging station by changing the stored charging completion point for the corresponding charging station to the detected charging completion point. can do.

Thereafter, the vehicle 1 may display the driving distance (580).

As another example, if the charging station is visited for the first time (Yes in 520) or if the charging amount is not greater than or equal to the first predetermined reference value (P) (No in 530), the vehicle 1 is based on the second predetermined reference value (Q) A fuel shortage point may be determined (590). At this time, the predetermined second reference value Q may mean a reference fuel amount that is considered to be insufficient in fuel. The predetermined second reference value Q may be a reference value initially set when designing the vehicle 1 or a default value basically set when the charging system of the vehicle 1 is reset. For example, the predetermined second reference value Q may be a fuel amount corresponding to 1/8 of the capacity of the fuel tank 110 . In this case, the vehicle 1 may determine the amount of fuel corresponding to 1/8 of the capacity of the fuel tank 110 as the fuel shortage point, and if the filled amount is 1/8 or less of the capacity of the fuel tank 110, the fuel is can be judged to be insufficient.

In this case, the vehicle 1 may determine a driving distance based on the determined fuel shortage point (560). When the drivable distance is determined, the vehicle 1 may learn charging completion points for each charging station (570) and display the drivable distance (580).

Through this, despite different charging pressures and charging completion points for each charging station, it is possible to determine a consistent driving range. Thus, driver's convenience and reliability can be increased.

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 above, the disclosed embodiments have been described with reference to the accompanying drawings. Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in a form different from the disclosed embodiments without changing the technical spirit or essential features of the present invention. The disclosed embodiments are illustrative and should not be construed as limiting.

110: fuel tank
120: sensing unit
130: control unit
140: display unit
150: communication department

Claims (20)

fuel tank;
display unit;
a sensing unit that detects a filled amount of fuel in the fuel tank; and
A controller configured to determine a driving distance based on the detected charge amount and control the display unit to display the determined driving distance;
The control unit,
When the detected charging amount is equal to or greater than a predetermined first reference value, it is determined that the fuel is completely charged, and when it is confirmed that the fuel is completely charged, a fuel shortage point is determined based on the detected charging amount, and the determined fuel Determine the driving distance based on the shortfall point;
A vehicle that determines a charged amount detected when the fuel is completely charged as a charging completion point, and determines the fuel shortage point based on the determined charging completion point. delete delete According to claim 1,
The control unit,
A vehicle that determines the drivable distance based on the amount of fuel from the charging completion point to the determined fuel shortage point. According to claim 1,
The control unit,
and determining a fuel shortage point based on a predetermined second reference value when the fuel is not completely charged, and determining the drivable distance based on the determined fuel shortage point. According to claim 1,
storage unit; and
Further comprising a communication unit for receiving location information;
The control unit,
When the fuel is filled in the fuel tank, the location of the charging station is determined based on the received location information, and when the fuel is completely charged, the detected charging amount is matched with the determined location of the charging station, so that the storage unit to store on vehicles. According to claim 6,
The control unit,
When the determined location of the charging station is stored in the storage unit, the vehicle determining the drivable distance based on a charging amount corresponding to the stored location of the charging station. According to claim 6,
The control unit,
When the determined location of the charging station is stored in the storage unit, it is determined whether the detected charging amount when the fuel is fully charged is the same as the charging amount corresponding to the stored location of the charging station, and the fuel is fully charged. If the sensed charge amount and the charge amount corresponding to the stored location of the charging station are not the same, the vehicle updating the stored charge amount with the sensed charge amount. According to claim 6,
The control unit,
When the determined location of the charging station is not stored in the storage unit, determining a fuel shortage point based on a predetermined second reference value, and determining the drivable distance based on the determined fuel shortage point. According to claim 6,
the sensor,
Detecting the charging pressure of the fuel charged in the fuel tank;
The control unit,
A vehicle that matches the detected charging pressure with the determined location of the charging station and stores it in the storage unit. detecting the amount of fuel charged in the fuel tank;
determining a possible driving distance based on the detected amount of charge; and
Including; displaying the determined driving distance;
Determining the driving distance based on the detected charge amount,
When the detected charging amount is equal to or greater than a predetermined first reference value, it is determined that the fuel is completely charged, and when it is confirmed that the fuel is completely charged, a fuel shortage point is determined based on the detected charging amount, and the determined fuel Determining the drivable distance based on a shortfall point; including,
Determining a charge amount detected when the fuel is completely charged as a charging completion point, determining the fuel shortage point based on the determined charging completion point, and determining the drivable distance based on the determined fuel shortage point Vehicle control method. delete delete According to claim 11,
Determining the driving distance based on the detected charge amount,
and determining the driving distance based on the amount of fuel from the charging completion point to the determined fuel shortage point. According to claim 11,
Determining the driving distance based on the detected charge amount,
and determining a fuel shortage point based on a predetermined second reference value when the fuel is not completely charged, and determining the possible driving distance based on the determined fuel shortage point. According to claim 11,
receive location information;
determining a location of a charging station based on the received location information when the fuel is filled in the fuel tank; and
and matching the detected charge amount with the determined location of the charging station when the fuel is completely charged and storing the result in a storage unit. According to claim 16,
Determining the driving distance based on the detected charge amount,
and determining the driving distance based on a charging amount corresponding to the stored location of the charging station when the determined location of the charging station is stored. According to claim 16,
When the determined location of the charging station is stored, determining whether or not the charging amount detected when the fuel is completely charged is the same as the charging amount corresponding to the stored location of the charging station; and
and updating the stored charge amount with the detected charge amount if the sensed charge amount when the fuel is fully charged is not the same as the charge amount corresponding to the stored location of the charging station. According to claim 16,
Determining the driving distance based on the detected charge amount,
When the determined location of the charging station is not stored in the storage unit, determining a fuel shortage point based on a predetermined second reference value, and determining the drivable distance based on the determined fuel shortage point. A control method for a vehicle comprising: According to claim 16,
detecting a charging pressure of the fuel charged in the fuel tank; and
The vehicle control method further comprising matching the sensed charging pressure with the determined location of the charging station and storing the matched location in the storage unit.

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