KR101664683B1

KR101664683B1 - Adulterated fuel fill detecting device and method of vehicle

Info

Publication number: KR101664683B1
Application number: KR1020150053351A
Authority: KR
Inventors: 우지훈; 최원규
Original assignee: 현대자동차주식회사
Priority date: 2015-04-15
Filing date: 2015-04-15
Publication date: 2016-10-24

Abstract

[0001] The present invention relates to a device and a method for discriminating a similar fuel from a vehicle, and more particularly, to a device and method for discriminating a fuel injected by a fuel injected into a vehicle, The present invention has a main object of providing an apparatus and a method for discriminating fuel similarity of a vehicle. In order to achieve the above object, a sample container for filling a part of the fuel injected through a fuel port of a vehicle is used as a sample for discriminating a similar fuel. A light source device for irradiating light toward the sample of the sample container; A polarizer for converting light emitted from the light source device into polarized light and transmitting the polarized light to a sample of a sample container; An electric rotating analyzer arranged so as to allow the polarized light transmitted through the sample of the sample container to pass therethrough and rotated by an actuator; A rotation detector for detecting a rotation angle of the rotation detector; A photodetector for detecting polarized light having passed through the rotation analyzer; And a controller for controlling the rotation of the rotary analyzer through the actuator and using the detection signal of the rotation detector and the detection signal of the photodetector to determine whether the fuel is similar to the sample.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fuel-

The present invention relates to an apparatus and method for determining fuel similarity of a vehicle, and more particularly, to an apparatus and method for determining fuel similarity in a vehicle, and more particularly, And more particularly, to a device and method for discriminating the fuel injection quantity of a vehicle.

The recent rise in oil prices has led to an increase in the number of gas stations selling similar fuels instead of genuine automobile fuels every year, and the use of similar fuels is increasing.

Pseudo gasoline is produced by mixing low molecular weight aromatic compounds, solvents such as alkane, alkene, etc., which are additives, in the gasoline, or by mixing the thinner, toluene and methanol in an appropriate ratio.

Because of the legal restrictions on toluene and methanol in automobile fuels, similar fuels can be said when components such as toluene and methanol are excessive compared to the component regulations.

Because toluene and methanol are exempt from duty, the cost of similar fuels is lower than that of genuine fuels, and additional benefits can be gained if sellers sell similar fuels.

However, the government strictly forbids sales because of the tax loss (tax evasion damage) caused by selling similar fuel and the use of similar fuel adversely affects automobiles.

When petrol is used in automobiles, it may cause reduction of fuel consumption and deterioration of engine performance, as well as engine damage (eg, damage to the piston head) and shortening of life due to occurrence of engine collision and knocking, Corrosion of the motor commutator of the pump, etc.) or damage may occur.

In addition, fire and explosion accidents occur frequently due to careless handling of similar fuels, excessive oil vapor, etc., and the emission of harmful components also increases in the exhaust gas.

Despite the above-mentioned problems, a large amount of similar fuel is produced and secretly sold, and since it is not easy for the general person to identify the similar fuel, the state agency is using the expensive equipment to control it.

As a method of detecting similar fuels, analysis techniques such as density method, distillation method, composition analysis method, chromatography method and IR spectroscopy are mainly used, but it is not easy to carry, and it takes much time for analysis and disadvantage that the equipment itself is expensive have.

In order to solve the above disadvantages, Korean Patent Laid-Open Publication No. 10-1999-84046 discloses a similar fuel discriminating device capable of discriminating the specific gravity and the vapor pressure of a solvent or toluene mainly mixed with petroleum gas with genuine gasoline, It is disadvantageous because it is accompanied by chemical reaction and it is difficult to use by the general public.

Korean Patent Laid-Open Publication No. 10-2001-0069614 discloses a similar gasoline detection kit for discriminating petrol, but it uses a strong acid and a strong base, which makes it difficult for the general public to use it and can cause environmental problems. have.

In addition, Korean Patent Publication No. 10-2011-0106513, Korean Patent Publication No. 10-2011-0106517, Korean Patent Laid-Open Publication No. 10-2012-0031035 discloses a polymer sensor There is a method of visually identifying the color change of the fiber and discriminating the petrol, but it is difficult to judge the result objectively because the discoloration of the color must be visually confirmed.

Therefore, there is a need for a simple on-board discrimination device capable of sensing the oiling of similar fuel and coarse fuel and notifying the driver so that the vehicle failure and additional damage do not occur.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a fuel injection control system for a fuel injection system, The present invention is directed to an apparatus and method for determining a fuel injection quantity of a vehicle.

According to an aspect of the present invention, there is provided a fuel cell system comprising: a sample container filled with a part of fuel injected through a fuel inlet of a vehicle, A light source device for irradiating light toward the sample of the sample container; A polarizer for converting light emitted from the light source device into polarized light and transmitting the polarized light to a sample of a sample container; An electric rotating analyzer arranged so as to allow the polarized light transmitted through the sample of the sample container to pass therethrough and rotated by an actuator; A rotation detector for detecting a rotation angle of the rotation detector; A photodetector for detecting polarized light having passed through the rotation analyzer; And a control unit for controlling the rotation of the rotary analyzer through the actuator and determining whether the fuel is similar to the sample by using the detection signal of the rotation detector and the detection signal of the photodetector.

According to another aspect of the present invention, there is provided a method of identifying a like fuel, comprising: filling a sample container with a part of fuel injected through a fuel inlet of the vehicle; A step of passing the light output from the light source device through the polarizer, the sample of the sample container, and the rotating analyzer in order, detecting the polarized light having been converted into the polarized light by the polarizer and passing through the sample container and the rotating analyzer through the photodetector ; And determining whether the fuel is similar to the sample by using the detection signal of the rotation detector and the detection signal of the photodetector that controls the rotation of the rotation analyzer through the actuator and detects the rotation angle of the rotation analyzer, Thereby providing a fuel lubrication discrimination method.

Thus, according to the apparatus and method for discriminating the fuel fuels of the present invention, it is possible to discriminate whether the fuel is similar fuel by using the principle of polarization for the sample taken from the fuel injected through the fuel inlet, and to warn the driver that the fuel is injected It is possible to prevent the injection of the similar fuel into the vehicle, and the damage caused by the use of the similar fuel can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an installation state of a fuel-fired fuel discriminating apparatus according to an embodiment of the present invention; FIG.
FIG. 2 is a view showing a configuration of an apparatus for discriminating fuel fuels according to an embodiment of the present invention.
FIGS. 3 and 4 are reference views for helping understanding of polarization.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains.

The present invention provides a similar fuel injection discrimination device and a method of discriminating whether or not a fuel injected through a fuel filler is injected into a vehicle in a simple manner and informing a driver of the similar fuel immediately, will be.

The apparatus and method for determining the fuel fuels of the present invention is characterized in that it is mounted on a vehicle and is informed to the driver by discriminating whether or not the fuel is similar during fuel lubrication. Detection, and discrimination.

FIG. 1 is a view showing an installation state of a fuel-fusing discriminating apparatus according to an embodiment of the present invention, and FIG. 2 is a view showing a configuration of a fuel-fusing discriminating apparatus according to an embodiment of the present invention.

FIGS. 3 and 4 are reference views for helping understanding of polarization.

A similar fuel injection discrimination apparatus according to an embodiment of the present invention is branched from a filler neck 3 including a fuel inlet 1 into which a main fuel gun is inserted in a vehicle and a filler pipe 2, A separate fuel passage or branch pipe 4 to be bypass connected to the filler pipe 2 of the tank 5 or the filler neck 3 is provided and the sample vessel 30 is placed in the middle of the branch pipe 4 Respectively.

The branch pipe 4 is installed so that a part of the fuel can be introduced from the filler neck 3 when filling the fuel pipe 3, for example, from the filler pipe 2 of the filler neck 3, (5) after being filled with the fuel that has been introduced through the fuel tank (4).

The fuel to be filled in the sample vessel 30 is used as a sample for determining whether or not the fuel being injected is discriminated from similar fuel by measuring the optical rotation (optical rotation) (= rotation intensity) by transmitting the polarized light as described later do.

The connection position of the branch pipe 4 to the filler neck 3, the position of the sample container 30 in the branch pipe, and the shape and size of the sample container are not limited to those shown in FIG. 1, If a part of the fuel used as the sample is easily introduced into the sample container through the branch pipe and if a certain amount of fuel may be accumulated in the sample container so that light transmission and measurement can be performed as described later The present invention is not limited thereto.

As described later, since the light output from the light source device 10 is transmitted through the fuel in the sample container 30 to the photodetector 50, the sample container is made of a light-transmitting material, that is, a transparent material .

Although not shown in the drawing, the control signal of the control unit 70 is provided at the downstream (downstream) position of the sample vessel of the branch pipe 4 so that the sample vessel 30 can be temporarily stored after the fuel used as the sample is filled. An electronic valve 6 may be provided.

In this case, if the similar fuel is not detected after the determination process of the similar fuel, the control unit 70 outputs a control signal to open the valve 6 so that the fuel in the sample vessel 30 used as the sample is discharged to the fuel tank 5, .

2, the apparatus for discriminating fuel fuels according to the embodiment of the present invention includes a light source device 10, a polarizer 20, a sample container 30, an electric rotary analyzer 40, a rotation detector 60, A photodetector 50, and a control unit 70.

In the above configuration, the light source device 10, the polarizer 20, the rotation analyzer 40, the rotation detector 60, and the photodetector 50 are modularized to be disposed at a predetermined distance around the sample container 30 And each component is mounted and supported by a mounting means such as a bracket on the vehicle body or the filler neck 3 in a modular state, although not shown in detail in the drawings.

At this time, the modular components can be integrally connected to the filler neck 3.

The light source device 10 may be a laser output device capable of outputting linear light and irradiating the sample container 30 with laser light toward the sample container 30, A laser output device that outputs a helium-neon (He-Ne) laser.

A polarizer 20 for converting the light radiated from the light source device to the sample container 30 into polarized light and transmitting the polarized light is disposed in front of the light source device 10 between the sample container 30 and the sample container 30.

A rotating analyzer 40 is disposed behind the sample container 30 so that the polarized light transmitted through the specimen as a fuel in the sample container 30 can pass through the rotating analyzer 40.

The rotation analyzer 40 may be an electric rotating type of analyzer that is rotated by the motor 41. The motor 41 may be an actuator for rotating the rotation analyzer 40, The driving of the motor 41 is controlled by the output control signal so that the rotation of the rotation analyzer 40 can be controlled in accordance with the control signal of the control unit 70. [

Although the connection structure of the motor 41 and the rotary analyzer 40 is schematically shown in FIG. 2, the rotary analyzer may receive rotation force output through the rotary shaft of the motor and may be rotated by the rotation amount (driving amount) So that the rotating analyzer and the motor can be connected in a power-transferable manner.

For example, the rotation shaft of the motor is connected to the frame, to which the rotation analyzer is fixed, through a power transmitting mechanism such as a gear unit or a belt so that the rotational force outputted during the motor driving is transmitted to the rotation analyzer through the power transmitting mechanism So that rotation of the rotary analyzer can be performed.

A photodetector 50 is disposed behind the rotation analyzer 40 and polarized light having passed through the rotation analyzer 40 is incident on the photodetector 50. The photodetector 50 The intensity of the incident polarized light is measured.

The rotation detector 60 connected to the rotation analyzer 40 detects the rotation angle of the rotation analyzer 40 when the rotation detector 40 is rotated so that the detection signals of the rotation detector 60 and the photodetector 50, That is, the rotation angle detected by the rotation detector 60 and the intensity of the polarized light detected by the photodetector 50 are input to the controller 70.

A polarizer 20 for converting transmitted light into polarized light, that is, a polarizer 20 for converting non-polarized light output from the light source device 10 into polarized light in the apparatus for discriminating the fuel injection in the present invention, And the rotation analyzer 40 serves as a filter for passing only polarized light having a specific polarization plane in the polarization transmitted through the sample (fuel) in the sample container 30.

The role of the polarizer and the analyzer is known. In the present invention, the polarizer 20 and the rotating analyzer 40 can be a conventional configuration including a polarizing filter, a polarizing film, a polarizing prism, Can have the same configuration.

In this configuration, the unpolarized light emitted from the light source device 10 passes through the polarizer 20, is converted into polarized light, passes through the sample in the sample container 30, and then the polarized light passing through the sample passes through the sample analyzer 40, The intensity of the polarized light is changed when the light is incident on the photodetector 50.

Particularly, the intensity of the polarized light having passed through the sample and the rotation analyzer 40 is changed according to the rotation angle of the rotation analyzer 40 rotated by the motor 41. In the pseudo fuel injection discriminating apparatus of the present invention, 70 rotates the rotary analyzer 40 by driving the motor 41 so that the intensity of the polarized light detected through the photodetector 50 becomes equal to the intensity of the light output from the light source device 10, (41) to rotate the rotation analyzer (40).

After the angle of the rotation analyzer 40 connected to the motor 41 is changed so that the intensity of the light detected by the photodetector 50 becomes equal to that of the light source device 10, The control unit 70 determines whether the fuel is similar fuel based on the rotation angle of the rotation analyzer 40. The control unit 70 determines whether the fuel is similar fuel.

Here, the rotation angle of the rotation analyzer 40, in which the intensity of the polarized light and the light intensity of the light source device are the same, corresponds to the optical angle of rotation representing the optical intensity of the fuel as the sample. In the discriminator, the principle of polarization and the law of Malus are used for discrimination of similar fuels.

The sensor module including the light source device 10, the polarizer 20, the sample container 30, the rotation analyzer 40, the rotation detector 60, and the photodetector 50 from the sample of the fuel being injected When the line light angle corresponding to the rotation angle of the rotation analyzer 40 is measured and the control unit 70 determines that the line light angle measured is less than the predetermined minimum allowable value (the reference value of the genuine gas, for example, genuine gasoline) It is determined that the fuel is similar fuel, and then the in-vehicle warning device 80 is operated to warn the driver that the fuel is similar fuel.

The warning device 80 may be a warning light for a cluster in the vehicle. When the controller 70 determines that the fuel is similar fuel, the alarm device 80 outputs a control signal for warning operation to light a warning light of the cluster, Is similar fuel.

Hereinafter, polarization and Malus' law will be described in order to facilitate understanding of the present invention.

FIGS. 3 and 4 are reference views for helping understanding of polarization.

As shown in FIG. 3, polarized light means light having a constant electric field or magnetic field direction in an arbitrary plane perpendicular to the traveling direction of light. The polarized light has linearly polarized light with a constant vibration direction, circularly polarized light .

Normal natural light such as sunlight is unpolarized, and the polarizing filter is a filter that converts natural light into polarized light.

Planar polarized light (planar polarized light) refers to a polarized light whose direction of vibration is limited to a plane. Planar polarized light has linear polarized light, and polarized light is polarized when a plane polarized light passes through a material. It means to measure rotation.

Polarized light (= polarized light) is a polarized light whose polarization plane rotates with the progress of light. It is a circularly polarized light in which the end of the electric field or magnetic field vector is perpendicular to the direction of light propagation, There is an elliptical polarization that draws.

In addition, the property that the polarization plane rotates when linearly polarized light is transmitted through a material is referred to as optical rotatory power, and the rotation angle of the polarization plane is defined as the thickness or concentration It is proportional.

A polarimeter is an optical instrument that measures the degree of optical rotation, i.e., optical rotation, when linearly polarized light passes through a crystal or liquid of any kind, and the optical angle of rotation (= angle of polarization) Is the rotation angle at which a substance rotates the plane of polarization, and can be obtained by the following equation.

Here,? Represents the ray width,? Represents the wavelength of light, and n-1 and n + 1 represent the left and right circularly polarized indices of refraction.

The line angle is proportional to the concentration of the optically active substance in the solution (net liquid density), and also depends on the length of the sample through which the light passes, the solvent used, the temperature at the time of measurement, and the like.

The specific rotatory power is a measure of the optical rotation of the optically active material and is a measure of the optical rotation of the optically active material. It is a material-specific value and can be defined as follows.

here,

Is the intrinsic optical rotation, a is the line angle, l is the light transmission length in dm (= 10 cm), and c is the number of substances in 100 ml of solution.

The law of Malus is a law that expresses the intensity of light (polarized light) passing through two polarizers. The intensity of polarization I is an angle (θ) formed by the polarization axes of two polarizers (corresponding to the polarizer and the rotating analyzer in the present invention) .

When the polarizing axis of two polarizing plates is parallel to the polarizing axis of the polarizing plate in the Malus's law (θ = 0), the intensity of light passing through the two polarizing plates, ie, the intensity of the polarizing light is defined as I _max . The intensity is I = I _max cos ² θ.

That is, the intensity of light passing through one polarizing plate is half of the intensity of incident light irrespective of the direction of the polarizing plate, but when the polarized light passes through the second polarizing plate, the intensity of light The intensity of the light is maximum (I _max ), and if the axes of the two polarizers are perpendicular (θ = 90), the intensity of the light is 0, and when the axes of the two polarizers are 0 and 90 The intensity of the light passing through the two polarizers can be expressed by the following equation.

I = I _max cos ² & thetas;

In the present invention, if the light intensity is the same in the light source device and the photodetector, the principle of the Malus law that the angle of the polarization axis is zero is used.

In the similar fuel injection discrimination apparatus of the present invention, the light of the light source device 10 passes through the polarizer 20 (for example, a linear polarizer), and is polarized (for example, linearly polarized light ), And the angle of the polarized light is changed while passing through the sample container 30.

That is, the angle of polarization is changed while the polarized light passes through the sample in the sample container collected in the fuel filled in the sample container 30, that is, the injected fuel. At this time, the angle at which the polarization returns depends on the inherent optical transmittance of the fuel .

The polarized light passing through the fuel in the sample container 30 is detected by the photodetector 50 after passing through the rotation analyzer 40 and the control unit 70 determines that the intensity of the polarized light measured by the photodetector 50 is The motor 41 is driven to rotate the rotation analyzer 40 until the intensity of the light output from the light source device 10 becomes equal to the intensity of the light output from the light source device 10. [

After the rotation analyzer 40 is rotated until the intensity of the light output from the light source device 10 becomes equal to the intensity of the polarized light, the rotation angle of the rotation analyzer 40 is detected by the rotation detector 60 And the controller 70 checks whether the rotation angle of the rotation analyzer 40 measured through the rotation detector 60 falls within the set range to determine whether the fuel being injected is a similar fuel.

If the rotational angle of the rotary analyzer 40 (the inherent linewidth of the fuel) is equal to or less than the reference value of the genuine fuel, it is determined that the fuel is similar and the warning lamp of the cluster is turned on.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. Forms are also included within the scope of the present invention.

1: Oil filling 2: Filler pipe
3: Filler neck 4: Branch pipe
5: Fuel tank 6: Valve
10: Light source device 20: Polarizer
30: sample container 40: rotation analyzer
41: motor 50: photodetector
60: rotation detector 70:
80: Warning device

Claims

A sample container for filling a part of the fuel injected through the fuel inlet of the vehicle as a sample for discriminating the like fuel;
A light source device for irradiating light toward the sample of the sample container;
A polarizer for converting light emitted from the light source device into polarized light and transmitting the polarized light to a sample of a sample container;
An electric rotating analyzer arranged so as to allow the polarized light transmitted through the sample of the sample container to pass therethrough and rotated by an actuator;
A rotation detector for detecting a rotation angle of the rotation detector;
A photodetector for detecting polarized light having passed through the rotation analyzer; And
And a controller for controlling the rotation of the rotary analyzer through the actuator and determining whether the fuel is similar to the sample using the detection signal of the rotation detector and the detection signal of the photodetector,
The photodetector outputs a detection signal according to the intensity of the polarized light having passed through the rotation analyzer to the control unit. The control unit controls the rotation of the photodetector until the intensity of the polarized light detected by the photodetector and the intensity of the light radiated from the light source become the same. And outputs an actuator control signal for rotating the wheel.

The method according to claim 1,
Wherein the sample vessel is installed on a branch pipe bypassed from a filler pipe of a fuel tank or a filler neck by branching from a filler neck so that a part of the fuel being injected can be filled with the sample.

The method of claim 2,
Wherein a valve is provided at a rear end position of the sample pipe of the branch pipe so as to be temporarily stored after the fuel used as the sample is filled in the sample container, the valve being opened or closed according to a control signal of the control unit.

The method according to claim 1,
Wherein the light source device is a laser output device for outputting and irradiating a laser beam.

The method according to claim 1,
Further comprising an in-vehicle warning device that alerts the user that the fuel is a similar fuel by operating the control signal to output the control signal when the controller determines that the sample of the sample container is a similar fuel.

delete

The method according to claim 1,
The control unit may be a similar fuel if the rotation angle of the rotation detector when the intensity of the polarized light detected by the photodetector and the intensity of the light irradiated by the light source are equal to each other is out of a predetermined setting range based on the detection signal of the rotation detector Fuel ratio of the vehicle.

Filling the sample vessel with a part of the fuel injected through the fuel inlet of the vehicle as a sample for discriminating the like fuel;
A step of passing the light output from the light source device through the polarizer, the sample of the sample container, and the rotating analyzer in order, detecting the polarized light having been converted into the polarized light by the polarizer and passing through the sample container and the rotating analyzer through the photodetector ; And
Determining whether the fuel is similar to the sample using the detection signal of the rotation detector and the detection signal of the photodetector that controls the rotation of the rotation analyzer through the actuator and detects the rotation angle of the rotation analyzer,
Detecting the intensity of the polarized light through the photodetector,
Wherein the controller is configured to rotate the rotation analyzer through the actuator until the intensity of the polarization light detected through the photodetector and the intensity of light output from the light source device become equal in the process of controlling the rotation of the rotation analyzer, How to determine lubrication.

delete

The method of claim 8,
When the rotation angle of the rotation analyzer when the intensity of the polarized light detected by the photodetector and the intensity of the light irradiated by the light source are equal to each other is out of the predetermined setting range based on the detection signal of the rotation detector, Wherein the fuel is injected into the fuel tank.

The method of claim 8,
Further comprising the step of alerting the in-vehicle warning device to warn that the fuel is similar if the sample of the sample container is a similar fuel.