KR100566867B1 - digital feul gauge - Google Patents

Abstract

The present invention provides a first step of initializing information on a previous fuel flow rate and storing information on inventory amount in a memory each time the lid of the fuel tank is opened, a second step of sensing the amount of fuel lubricated in the fuel tank, and a second step. Perform the third step of subtracting the stock in the first stage from the fuel amount in the first stage and obtaining the newly filled fuel in the fuel tank, and the fourth step of outputting the information on the stock stored in the first stage and the fuel flow obtained in the third stage. Thus, the driver can check the actual amount of fuel oiled in the fuel tank of the vehicle while in the vehicle.

vehicle. Fuel flow rate. Digital flow sensor. Inventory.

Description

Calculation and display method of fuel flow rate substantially lubricated in fuel tank and system for same {digital feul gauge}

1 is a block diagram showing a system for calculating and displaying a fuel flow rate substantially fueled in a fuel tank according to the present invention.

2 is a flowchart illustrating a process of calculating and displaying a fuel flow rate in a fuel tank according to the present invention.

-Explanation of symbols for the main parts of the drawings-

11: digital flow sensor 12: lid open and close sensor

13: Select Button 14: Control

15 memory 16 display unit

17: warning unit

The present invention relates to a method for calculating and displaying a fuel flow rate substantially fueled in a fuel tank, and a system therefor. More particularly, the present invention relates to a method for calculating and displaying a fuel flow rate substantially fueled in a fuel tank that enables a driver to check a substantial fuel amount fueled in a fuel tank of a vehicle while the driver is in a vehicle, and a system therefor. .

Typically, the driver can check the cost of the fuel supply along with the amount of fuel to be charged in the fuel tank of the vehicle by looking at the meter of the gas tanker installed in the distant gas station while sitting in the driver's seat. Therefore, even if some unscrupulous gas station owners or employees operate the tanker to reduce the amount of fuel supplied to the fuel tank of the vehicle or to remove some of the fuel fueled from the fuel tank of the vehicle, the driver cannot confirm the problem. There is.

Republic of Korea Patent Publication No. 2002-86915 "Oil flow rate check device" is a "first and second clamps mounted on and removed from the outer diameter of the fuel hose connected to the fuel gun of the fuel oil machine, and through the fuel hose in the first clamp A transmitter embedded in the first clamp to send ultrasonic waves to the fuel, a receiver transmitted from the transmitter to the second clamp of the opposite side of the transmitter to receive the changed ultrasonic waves through the fuel hose and the fuel, and an outgoing signal of the transmitter And an ultrasonic flowmeter that is electrically connected to the transmitter and receiver to process, control, and calculate the received signal from the receiver, which allows the driver (consumer) to check the amount of fuel in the vehicle's fuel tank, irrespective of the gauge of the filling machine. To ensure that

The above "oil flow rate checking device" is not to check the actual amount of fuel lubricated in the fuel tank, but to detect the amount of fuel passing through the fuel case of the fueling machine to check the fueling amount, the fuel leaked intentionally or accidentally leaked in the process of fueling Or fuel remaining in the oil supply hose causes errors in the fuel supplied to the vehicle's fuel tank.

"Oil flow monitoring device" of the Republic of Korea Utility Model Registration No. 314203 (Registration of May 23, 2003) is a fuel flow monitoring device, which is installed at the fuel tank inlet of the vehicle, through the fuel tank inlet to the fuel tank A fuel flow detector for outputting a fuel flow detection signal corresponding to the amount of fuel flowing into the vehicle, a reset switch installed at the fuel cover of the vehicle, and outputting a zero setting signal when the fuel cover is opened; It is installed on the instrument panel of the flow rate display unit for outputting the flow rate information corresponding to the input flow rate display signal, and determine the actual flow rate in accordance with the input of the zero setting signal and the flow rate detection signal and outputs the corresponding flow rate display signal The controller is configured to allow the driver to monitor the actual amount of fuel oiled in the vehicle.

However, the above-described "oil flow rate monitoring device" is an error of the fuel that is actually lubricated in the fuel tank by estimating the actual amount of fuel lubricated in the fuel tank without considering the air injected into the fuel tank and discharged to the outside together with the fuel. There is a drawback that occurs.

The present invention for solving the above-described drawbacks is a method for calculating and displaying the fuel flow rate substantially fueled in the fuel tank to enable the driver to check the actual fuel amount of fuel in the fuel tank of the vehicle in the state of boarding the vehicle, and It is an object to provide a system.

The present invention for achieving the object as described above, the first step of initializing the information on the previous fuel flow amount and storing the information on the inventory amount in the memory each time the fuel tank lid is opened, and the amount of fuel lubricated in the fuel tank A second step of detecting a; and a third step of subtracting the stock amount in the first step from the fuel amount of the second step to obtain a newly charged fuel level in the fuel tank; and the stock amount stored in the first step and the third And a fourth step of outputting information on the fuel flow rate obtained in the step.

In addition, in the present invention, the information on the inventory amount is formed every time the fuel tank lid is opened, it is preferable that the memory is sequentially stored 1 to 10 inventory information formed recently.

In addition, in the present invention, it is preferable that the information on the inventory amount stored in the memory is sequentially output to the display unit in accordance with the operation of the selection button.

In another aspect, the present invention, the lid opening and closing sensor for generating a reset signal for initializing the information on the fuel flow and a storage signal for storing the information on the current inventory amount in the memory each time the lid of the fuel tank is opened, and provides the control unit with the lid opening and closing; A digital flow rate sensor installed in the fuel tank and sensing the amount of fuel lubricated in the fuel tank, and initializing information on the fuel flow rate as a reset signal and a storage signal are provided from the lid open / close detection sensor. And storing information on the current stock amount in a memory, calculating a fuel flow amount by calculating information about the fuel amount provided from the digital flow sensor and the stored stock amount, and the stock amount stored in the memory by the controller and the controller. Display that outputs information about the oil flow rate obtained by In that it comprises the features.

In addition, in the present invention, the information on the inventory amount stored in the memory is 1 to 10, it is preferable that the information on the inventory amount is sequentially output to the display unit in accordance with the operation of the selection button.

Hereinafter, the present invention will be described in detail.

1 is a configuration diagram showing a system for calculating and displaying a fuel flow rate substantially fueled in a fuel tank according to the present invention, which is extended from a fuel tank to extend the fuel tank so that fuel gas can be inserted when fueling the fuel tank of a vehicle. The exposed filling hole is covered with a lid that can be separated and coupled, and a lid opening and closing sensor 12 is provided between the filling hole and the lid, and the lid opening and closing detection sensor 12 provides information on the flow rate whenever the lid is opened. It generates a reset signal for initializing and a storage signal for storing information on the current inventory amount in the memory 15 to provide to the control unit 14.

A digital flow rate sensor 11 is installed inside or outside the fuel tank to detect the amount of fuel in the fuel tank. Information about the amount of fuel in the fuel tank sensed by the digital flow sensor 11 is provided to the controller 14. (See "Digital Display of Automobile Flow Meters" in Korean Utility Model Publication No. 1988-4960).

As described above, the controller 14 receiving the reset signal, the storage signal, and the fuel amount information from the lid open / close detection sensor 12 and the digital flow sensor 11 is provided with the reset signal and the storage signal from the lid open / close detection sensor 12. According to the initialization of the information on the fuel flow rate and the information on the current inventory amount is stored in the memory 15, while calculating the information on the fuel amount and the stored stock information provided from the digital flow sensor 11 and the fuel flow rate, that is, the fuel tank After the lid is opened, find the fresh fuel supply.

In particular, the information on the stock of fuel remaining in the fuel tank stored in the memory 15 is closed on the fuel tank lid, that is, the digital flow sensor (for about one minute) at a certain time (about 1 minute) in an operation without fueling or a parking situation. 11) information on the newly detected inventory amount by the digital flow sensor (11) at a shorter time interval to check the oiling status while the fuel tank lid is open, that is, during fueling. Information. This is to detect the most recent inventory and to accurately calculate the fuel flow or to inform the driver (the passenger) of the current inventory.

In order to continuously maintain this operation, the battery power of the vehicle is used as the driving power of the system according to the present invention, but the minimum standby power must be continuously input to the system by the present invention even when the vehicle is started up. to be.

Here, the memory 15 stores information on the stock of fuel remaining in the fuel tank, and one to ten pieces of information on the fuel stock stored in the memory 15 are updated every time the lid of the fuel tank is opened. Information about the inventory is transmitted and stored, and the oldest inventory information among the previously stored inventory information is deleted.

In addition, a plurality of pieces of information on the fuel stock stored in the memory 15 are sequentially output to the display unit 16 under the control of the controller 14 which recognizes the fuel inventory amount according to the operation of the selection button 13. At this time, the output order of the inventory amount information sequentially output to the display unit 16 may preferentially output the latest or previous one by operating the -button or the + button of the selection button 13.

The control unit 14 is connected to a display unit 16 for displaying information on the amount of stock stored in the memory 15 and information on the fuel flow amount obtained by the control unit 14, that is, the information on the newly supplied fuel amount. In addition, the control unit 14 is connected to the warning unit 17, which is to inform that the fuel in the fuel tank has fallen below a certain level by the control of the control unit 14.

FIG. 2 is a flowchart illustrating a process of calculating and displaying a fuel flow rate in a fuel tank according to the present invention. When the lid of the fuel tank is opened by a gas source or a driver (S21), the control unit 14 is a lid open / close sensor 12 Receiving a reset signal and a storage signal from the) initializes the information on the previous oil flow rate and stores the information on the inventory amount detected by the digital flow sensor 11 in the memory (15) (S22) (S23).

Here, the amount of inventory information stored in the memory 15 is preferably about 1 to about 10 formed each time the lid of the fuel tank is opened, the information about the amount of inventory stored in the memory 15 by operating the selection button 13 This can be confirmed through the display unit 16.

When information about the amount of fuel that changes as fuel is additionally injected into the fuel tank of the vehicle (S24) is detected by the digital flow sensor 11 and supplied to the control unit 14 (S25), the controller 14 controls the digital flow rate. The amount of fuel newly oiled in the fuel tank is obtained by subtracting the inventory amount stored in the memory 15 from the amount of fuel sensed by the sensor 11, that is, the amount of fuel remaining in the current fuel tank (S26).

In addition, the controller 14 outputs information about the stock amount stored in the memory 15 and the information about the newly supplied fuel amount in the fuel tank through the display unit 16. The amount can be confirmed more accurately (S27).

Therefore, according to the method for calculating and displaying the fuel flow rate substantially oiled in the fuel tank according to the present invention, and a system therefor,

The present invention enables the driver or passenger to accurately determine the amount of fuel actually charged in the fuel tank of the vehicle, thereby determining (confirming) a difference between the amount of fuel displayed on the meter of the fuel tanker and the amount of fuel supplied to the actual fuel tank. It is possible to prevent the operation of the meter of the seller at the source, thereby preventing the damage of the consumer (driver) in advance.

In addition, the present invention is to prevent the driver (consumer) from confirming the currently injected fuel flow rate as the fuel oil supplier made a mistake when closing the fuel tank lid after the fuel injection, while the recent fuel flow to "0" Since it is recorded, up to 10 of the latest fuel flow rates are recorded, thereby preventing the occurrence of such a problem in advance, and when the occurrence occurs, it is possible to take appropriate measures with an accurate basis.

Although the present invention has been described in detail only with respect to the specific embodiments described, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications belong to the appended claims. .

Claims (5)

A first step of initializing the information on the previous fuel flow each time the fuel tank lid is opened and storing information on the 1 to 10 inventory amounts formed each time the fuel lid is opened; A second step of sensing an amount of fuel charged in the fuel tank; A third step of subtracting the inventory amount in the first step from the fuel amount in the second step to obtain a fuel supply amount newly charged in the fuel tank; And A fourth step of outputting information on the stock amount stored in the first step and the oil supply amount obtained in the third step; Fuel flow rate calculation and display method which is substantially refueled to the fuel tank comprising a. delete The method of claim 1, The information on the amount of stock stored in the memory is output to the fuel tank, characterized in that sequentially output to the display unit in accordance with the operation of the selection button fuel flow rate calculation and display method. A lid opening / closing sensor for generating a reset signal for initializing information on the fuel flow rate and a storage signal for storing information on the current stock amount in a memory each time the lid of the fuel tank is opened, and providing the control signal to the controller; A digital flow sensor installed in the fuel tank and sensing the amount of fuel lubricated in the fuel tank, and providing information about the amount of fuel to the controller; In response to the reset signal and the storage signal provided from the lid open / close sensor, the information on the fuel flow rate is initialized, and the information about 1 to 10 current stocks formed each time the lid is opened is provided from the digital flow sensor. A control unit for calculating a fueling amount by calculating information on a fuel amount and information on the stored stock amount; And A display unit for outputting information on the stock amount stored in the memory by the controller and the fuel flow amount obtained by the controller; System for calculating and displaying the fuel flow rate substantially refueled to the fuel tank comprising a. The method of claim 4, wherein And the information on the stock amount is sequentially output to the display unit according to the operation of the selection button.

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