KR20020074732A - Vehicle gasoline feeding cap opening and closing device and method - Google Patents

Abstract

PURPOSE: A fuel filler opening and closing apparatus of a fuel tank for a vehicle and a method thereof are provided to cut down expenses by reducing assembling process, to prevent trouble from deformation and fuel theft, and to inject fuel safely by stopping an engine automatically in filling. CONSTITUTION: A fuel filler opening and closing device of a fuel tank for a vehicle is composed of a travel state deciding unit(1) deciding normal traveling by detecting driving of an engine; a shift lever detecting unit(2) deciding parking by detecting the position of a shift lever; a key switch state deciding unit(4) detecting connection of a terminal of a key switch(3); an operating switch(5) installed around a driver's seat; a filling detecting unit(6) installed in a fuel filler to detect input and output of a fuel gun; a control unit(7) outputting a control signal to a fuel filler opening unit(8) and a key switch operating unit(9); the fuel filler opening unit opening and closing the fuel filler by driving a motor(111) according to the output signal from the control unit; and the key switch operating unit turning on and off the key switch according to the output signal from the control unit. Expenses are reduced with opening and closing the fuel filler automatically, and noise is prevented with automatically stopping the engine during injecting fuel.

Description

Filling opening / closing device and method for automobile fuel tanks {Vehicle gasoline feeding cap opening and closing device and method}

The present invention relates to a gas opening and closing device and a method of an automobile fuel tank, and more particularly, to reduce the assembly process and the production cost by eliminating the rod connected to the filling hole stopper by opening and closing the filling port through the electronic control method. In addition to reducing the risk of failure and theft of the fuel due to the deformation of the rod, it is possible to eliminate the risks that may occur during fuel injection, especially through the automatic stopping of the engine running during refueling (e.g. It is invented to prevent the occurrence of noise by cranking and to protect the starter while at the same time to eliminate the start of fueling).

Conventional vehicle fuel inlet plug opening and closing device is provided with a control lever around the driver's seat and one side of the plug installed in the fuel inlet can be rotated by a hinge provided with a coiled return spring, while the other side is opened and closed by a locking hole Is controlled so that the locking lever and the operating lever is connected to the rod by operating the operating lever is configured to open the stopper automatically unlocking the locking mechanism when the rod is pulled.

However, in such a configuration, the connecting rod must be installed between the locking mechanism of the stopper and the operation lever. Therefore, the assembly process is complicated and the production cost rises. The locking tool can be opened by a simple tool such as a driver from the outside, such that fuel may be stolen.

In addition, the conventional vehicle has a configuration in which there is no correlation between fuel injection and start control.

Therefore, when refueling the vehicle, the driver himself has to voluntarily turn off the engine.

However, most drivers forget to turn off the engine when fuel is injected. However, when the fuel is injected into the vehicle while the engine is started, when the vehicle is started due to the driver's carelessness In addition, there is a problem that a safety accident that leads to a fire and an explosion is often caused by sparks splashing on the gas generated from the fuel because of sparking on fuel or starting immediately before refueling. Since the cranking noise is generated due to the continuous driving, the starter is continuously driven, thereby deteriorating its lifespan.

The present invention has been made to solve such a conventional problem, by reducing the assembly process by reducing the assembly process through the removal of the rod connected to the stopper, as well as the failure of the rod deformation and fuel theft. Concerns can be eliminated, and the auto-stop of engine operation during refueling can also prevent the risk of fire and explosion due to starting during refueling and starting immediately before refueling. In addition, it is an object of the present invention to provide an opening and closing device of the fuel tank opening of the vehicle fuel tank that can prevent the noise generated by the cranking during fuel injection and shorten the lifespan due to the starter burnout.

An object of the present invention described above, the driving state determination unit for determining whether the driving state of the engine to determine whether the driving state; A shift lever detector for determining whether the shift lever is in a parking state; A key switch state determination unit for detecting which side the terminals of the key switch are connected to; An operation switch installed around the driver's seat for easy operation by the driver; A fueling completion detection unit installed inside the fuel tank filling port and detecting a completion state of the fueling by detecting an entry and exit of the fueling gun; A control unit for selectively driving the opening and closing means driving unit by determining the input signal of each unit; It can be achieved by configuring the gas opening and closing means drive unit for selectively operating the gas opening and closing means by driving the motor in the forward or reverse direction in response to the output signal of the control unit.

Therefore, it is possible to reduce production costs as well as to reduce the assembly process, to eliminate the risk of theft and theft of fuel due to the deformation of the rod, the risk that can occur when fuel injection through the automatic stop of the engine running during refueling The element can be prevented in advance, as well as the prevention of noise generated by cranking during fuel injection and the shortening of service life due to starter burnout.

1 is an exploded perspective view of a fuel tank filling port of the vehicle according to the present invention.

Figure 2a, 2b is a longitudinal sectional view of the oil filling port showing the operating state of the device of the present invention.

3 is a block diagram of an apparatus of the present invention.

4 is a flowchart for explaining the method of the present invention.

Explanation of symbols on main parts of drawing

1: driving state determining unit 2: shift lever detecting unit

3: Key switch 4: Key switch state determination unit

5: operation switch 6: lubrication completion detection unit

7 control unit 8: fuel opening and closing means drive unit

9: key switch operating portion 10: oil hole

101: notch 111: motor

112: power transmission plate 113: guide member

114: opening and closing plate 115: seal

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

1 is a partial exploded perspective view showing a fuel tank filling port of the vehicle according to the present invention, Figures 2a, 2b is a longitudinal sectional view of the filling port showing the operating state of the device of the present invention, Figure 3 is a block configuration of the device of the present invention Is shown.

According to this, the driving state determination unit 1 for electrically detecting whether the engine is driven to determine whether the driving state normal;

A shift lever detector (2) for determining whether the shift lever is in a parking state by judging the position of the shift lever;

A key switch state determination unit 4 for detecting which side the terminal of the key switch 3 is connected to;

An operation switch 5 installed around the driver's seat for easy operation by the driver;

A fueling completion detection unit 6 installed in the fuel tank filling port 10 and detecting a completion state of the fueling through the entry and exit of the fueling gun;

A control unit 7 for judging the input signals of the respective units and generating predetermined control signals to the fuel opening / closing means driving unit 8 and the key switch operating unit 9;

In response to the output signal of the control unit 7 to drive the opening and closing means driving motor 111 in the forward or reverse direction to selectively operate the filling opening and closing means 11 to open and close the filling opening 10 directly Opening and closing means drive unit 8;

It is characterized in that it consists of a key switch operating unit (9) for selectively turning on / off the key switch (3) in response to the output signal of the control unit (7).

At this time, the oil opening and closing means 11 includes a power transmission plate 112 having a rack gear 112a engaged with the pinion gear 111a fixed to the shaft of the motor 111;

The upper and lower ends of the “c” shaped guide rail portion 113a are integrally bent, and one side opening portion is provided with the movement limiting portion 113b of the opening and closing plate 114 and a square hole 113c is punched in the front portion. A guide member 113 fixedly installed on the chassis of the vehicle positioned at the front of the filling hole 10;

Stopper 114c having a cover plate 114a having a diameter corresponding to the diameter of the filling hole 10 and a semi-cylindrical cap 114b having a shape opposite to the cutout 101 at the end of the filling hole 10. Is fixed to one side and is slidably installed on the guide member 113 in a state in which one side is fixedly installed on the power transmission plate 112 of the filling hole 10 according to the driving direction of the motor 111. Characterized in that it consists of an opening and closing plate 114 for selectively opening and closing the inlet.

In addition, the cutout portion 101 at the end of the filling hole 10 is to have a shape by cutting a half of the cylinder to face the shape of the cap 114b, the outer peripheral surface of the filling hole 10 including the cutout 101 It is characterized in that the seal 115 for sealing between the contact surface of the medium (114c) of the opening and closing plate 114 is installed.

On the other hand, Figure 4 shows a flowchart for explaining the method of the present invention.

According to this, if the normal driving is in a state where the engine of the vehicle is started, detecting whether the shift lever is shifted to the parking range;

Continuously detecting whether the operation switch 5 is "on" by the driver or the like if the shift lever is in the parking range as a result of the detection above;

As a result of the detection as described above, when the operation switch 5 is turned "on", the filling port opening / closing means 11 driving motor 111 is rotated forward to automatically open the filling port 10, and the key switch operating section 9 is opened. Turning off the engine starting of the vehicle by " off " the key switch 3;

Continuously detecting whether fueling is completed through a fueling completion detection unit 6 installed in the fuel tank filling hole 10 during fuel injection;

As a result of the above-mentioned detection, when the oil supply is completed and the oil supply is removed from the oil inlet, the key switch 3 is reconnected to the accessory terminal (Acc) to start the engine, and the motor 111 is rotated reversely to open and close the oil inlet 11 It characterized in that the step consisting of automatically blocking the filling hole (10) through.

Referring to the effect of the present invention made of such a configuration and steps as follows.

First, the control unit 7 detects whether the vehicle is in a normal driving state through the normal driving state determining unit 1, and if it is in a normal driving state, whether the shift lever is switched to the parking range through the shift lever detecting unit 2. Will be detected.

As a result, when the shift lever is in the parking range, the driver and the like continue to detect whether the operation switch 5 is turned on for oil supply.

In this way, if it is "on" by the driver or the like while detecting the state of the operation switch 5, it is recognized that the operation switch is "on" for lubrication, and the motor 111 is rotated forward to the oil opening / closing means drive unit 8. It generates an output signal to make it work.

At this time, the oil opening and closing means 11 is a pinion gear 111a is installed on the shaft of the motor 111, the pinion gear 111a is a rack gear 112a formed on the bottom surface of the power transmission plate 112. One side of the opening and closing plate 114 which is fitted with a stopper body 114c having a cover plate 114a and a semi-cylindrical cap 114b integrally installed at one end of the power transmission plate 112. It is fixed, the opening and closing plate 114 is provided with the "c" shaped guide rail portion 113a, the movement limiting piece 113b and the square hole 113c integrally, and located in the front of the filling hole 10 It has a structure slidably installed in the guide member 113 which is directly fixed to the chassis.

Therefore, when the pinion gear 111a coupled to its shaft rotates forward because the motor 111 rotates forward, the power transmission plate 112 to which the rack gear 112a is engaged is right as shown in FIG. 2A. Direction) and the opening and closing plate 114 fixed to the power transmission plate 112 and blocking the square hole 113c of the oil filling hole 10 and the guide member 113 is a guide member ( Since the sliding movement along the guide rail portion 113a of the 113, part of the square hole 113c of the guide member 113 is opened, the inlet of the oil filling port 10 is automatically visible, so that the oil filling man fills the oil filling hole. You can plug in and refuel.

Thus, when fueling is started, the control unit 7 outputs the "off" signal of the key switch 3 to the key switch operating unit 9 to turn off the engine of the car. It is possible to prevent the risk of fire and explosion due to the start of fueling and starting just before oiling, as well as to shorten the lifespan due to the cranking noise and the starter burnout.

On the other hand, since the fueling is completed in the above state and the fuel injection port is pulled out from the fuel inlet, when a predetermined output signal is generated in the fueling completion detection unit 6, the control unit 7 turns on the key switch operation unit 9. Since the signal is outputted, the movable terminal of the key switch 3 is connected to the accessory terminal Acc again, and the engine is automatically started.

Subsequently, the control unit 7 generates an output signal for rotating the motor 111 to the gas opening / closing means driving unit 8 in reverse, so that the pinion gear coupled to the shaft of the motor 111 is reversed as described above. 111a) is reversely rotated so that the power transmission plate 112 engaged with the rack gear 112a is moved to the left side (which is a convenient direction) as shown in FIG. 2B, and thus is fixed to the power transmission plate 112. The opening and closing plate 114 is slid and moved along the guide rail portion 113a of the guide member 113 to automatically block the entrance of the square hole 113c and the oil inlet 10 of the guide member 113.

At this time, one side of the opening and closing plate 114 is a semi-cylindrical cap of the shape that is opposed to the cover plate (114a) having a diameter corresponding to the diameter of the filling hole 10 and the cutout portion 101 of the end of the filling hole (10) ( The stopper 114c having the 114b) integrally provided therein, and the seal 115 is provided on the outer circumferential surface of the filling hole 10 including the cutout 101. When the opening and closing plate 114 is moved to the left side by the driving to block the square hole 113c of the guide member 113, the contact surface portion between the stopper 114c and the inlet of the oil filling port 10 is driven by the seal 115. Fully enclosed, even if the car shakes violently while driving, it can completely block the leakage of fuel through the filling hole.

On the other hand, the one side opening of the guide member 113 is provided with a movement limiting piece 113b to limit the distance when moving to block the entrance to the filling hole 10 due to the reverse rotation of the motor 111 of the opening and closing plate 114. It is possible that the semi-cylindrical cap 114b of the opening and closing plate 114 can prevent the cutout portion 101 of the filling hole 10 to be accurately.

As described above, according to the present invention, it is possible to automatically open and close the filling port through the electronic control method, thereby reducing the assembly process and reducing the production cost through the deletion of the rod connected to the filling hole stopper, and the deformation of the rod itself It is possible to prevent the failure and theft of fuel in advance, and also to stop the start of fueling and starting immediately before fueling, which is a danger that may occur during fuel injection through automatic stop of engine operation. It is a very useful invention, such as noise prevention and starter protection by cranking during fuel injection.

Claims (4)

A driving state determination unit 1 electrically detecting whether the engine is driven and determining whether the engine is in a normal driving state; A shift lever detector (2) for determining whether the shift lever is in a parking state by judging the position of the shift lever; A key switch state determination unit 4 for detecting which side the terminal of the key switch 3 is connected to; An operation switch 5 installed around the driver's seat for easy operation by the driver; A fueling completion detection unit 6 installed in the fuel tank filling port 10 and detecting a completion state of the fueling through the entry and exit of the fueling gun; A control unit 7 for judging the input signals of the respective units and generating predetermined control signals to the fuel opening / closing means driving unit 8 and the key switch operating unit 9; In response to the output signal of the control unit 7 to drive the opening and closing means driving motor 111 in the forward or reverse direction to selectively operate the filling opening and closing means 11 to open and close the filling opening 10 directly Opening and closing means drive unit 8; The fuel tank opening and closing device of the vehicle fuel tank, characterized in that consisting of a key switch operating unit (9) for selectively turning on / off the key switch (3) in response to the output signal of the control unit (7). The method according to claim 1, The oil opening / closing means 11 includes a power transmission plate 112 having a rack gear 112a engaged with a pinion gear 111a fixed to a shaft of the motor 111; The upper and lower ends of the “c” shaped guide rail portion 113a are integrally bent, and one side opening portion is provided with the movement limiting portion 113b of the opening and closing plate 114 and a square hole 113c is punched in the front portion. A guide member 113 fixedly installed on the chassis of the vehicle positioned at the front of the filling hole 10; Stopper 114c having a cover plate 114a having a diameter corresponding to the diameter of the filling hole 10 and a semi-cylindrical cap 114b having a shape opposite to the cutout 101 at the end of the filling hole 10. Is fixed to one side and is slidably installed on the guide member 113 in a state in which one side is fixedly installed on the power transmission plate 112 of the filling hole 10 according to the driving direction of the motor 111. Filling opening and closing device of the fuel tank of the vehicle, characterized in that the opening and closing plate 114 to selectively open and close the inlet. The method according to claim 1, The cutout portion 101 at the end of the filling hole 10 has a shape by cutting a half of the cylinder opposite to the shape of the cap 114b, and is opened and closed on the outer circumferential surface of the filling hole 10 including the cutout 101. A gas opening and closing device for an automotive fuel tank, characterized in that a seal (115) is provided for sealing between the contact surfaces of the media (114c) of the plate (114). Detecting whether the shift lever is shifted to the parking range when normal driving is performed while the engine of the vehicle is started; Continuously detecting whether the operation switch 5 is "on" by the driver or the like if the shift lever is in the parking range as a result of the detection above; As a result of the detection as described above, when the operation switch 5 is turned "on", the filling port opening / closing means 11 driving motor 111 is rotated forward to automatically open the filling port 10, and the key switch operating section 9 is opened. Turning off the engine starting of the vehicle by " off " the key switch 3; Continuously detecting whether fueling is completed through a fueling completion detection unit 6 installed in the fuel tank filling hole 10 during fuel injection; As a result of the above-mentioned detection, when the oil supply is completed and the oil supply is removed from the oil inlet, the key switch 3 is reconnected to the accessory terminal (Acc) to start the engine, and the motor 111 is rotated reversely to open and close the oil inlet 11 Opening and closing method of the fuel tank of the automobile fuel tank, characterized in that the step consisting of automatically blocking the filling port (10) through.