KR20170107811A - Apparatus generating mixed gas of hydrogen and oxygen for vehicle - Google Patents

Abstract

Provided are an apparatus for generating mixed gas of hydrogen and oxygen for a vehicle and a control method thereof. According to the present invention, the apparatus for generating mixed gas of hydrogen and oxygen for a vehicle comprises: an electrolytic bath having a plurality of electrode plates, and electrolyzing an electrolyte to generate mixed gas of hydrogen and oxygen; a braking detection unit detecting a braking signal of a vehicle; an acceleration detection unit detecting an acceleration signal of the vehicle; an electromagnetic control unit controlling operation of the electrolytic bath by receiving a signal from the braking detection unit and the acceleration detection unit; a water tank storing the electrolyte and supplying the electrolyte to the electrolytic bath; a moisture removing filter removing moisture and an electrolyte of the mixed gas made in the electrolytic bath; and a reverse prevention device enabling the mixed gas filtered in the moisture removing filter not to flow backward in an engine. The electromagnetic control unit controls a generating amount of mixed gas of the electrolytic bath by dividing acceleration, deceleration, and an idle state of the vehicle.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus for generating an oxygen-hydrogen mixed gas for a vehicle,

The present invention relates to an oxygen-hydrogen mixed gas generating apparatus for a vehicle, and more particularly, to an oxygen-hydrogen mixed gas generating apparatus capable of being installed in an engine room of a vehicle, .

Electrolysis refers to a process of forcibly separating a substance that is not separated into anion and cation naturally in an aqueous solution state into an anion and a cation by using an electric force. The electrolytic apparatus used for such electrolysis basically comprises an external power source, a positive electrode, a neutral electrode and a negative electrode. The external power source provides an electric force in which the object to be electrolyzed is forcibly separated into an anion and a cation. The cathode and the anode each have a role of transmitting an electric force to the electrolysis object and a place where an anion or a cation is deposited Can play a role. In particular, electrolysis of water can generate Brown's gas, which is a mixture of oxygen and hydrogen at a ratio of 1: 2, which can be used as a non-polluting energy source or fuel.

On the other hand, an internal combustion engine used in an automobile or a power plant obtains power by injecting and burning fuel, such as gasoline or gasoline, which is a kind of fossil fuel, into the combustion chamber of the engine room in a gasified state by mixing the gas with air at a predetermined ratio, Technological developments have been made in the direction of improving fuel efficiency and reducing exhaust gas by increasing efficiency.

In recent years, researches for increasing the combustion efficiency by supplying a small amount of hydrogen or a mixed gas of oxygen and hydrogen to the inside of the engine are actively underway, and devices for electrolyzing water for supplying the mixed gas are being developed. Since hydrogen has a very fast burning rate, it can be beneficial as a secondary fuel added to the primary fuel such as gasoline or light oil in the internal combustion engine. For example, when mixed with an air-fuel mixture of a primary fuel of an engine in a vehicle, hydrogen can increase the performance of the internal combustion engine by increasing the mileage per unit fuel and reducing fuel consumption for the primary fuel. In addition, hydrogen can also increase the output of the internal combustion engine and reduce the amount of soot emissions such as hydrocarbons (HC) and carbon monoxide (CO).

However, when hydrogen is supplied to the engine of the vehicle at a constant speed as a secondary fuel, there is a problem that incomplete combustion occurs when the ratio of the primary fuel to the primary fuel is different depending on conditions, .

An object of the present invention is to provide an oxygen-hydrogen mixed gas generator for a vehicle which can be installed in an engine room of a vehicle and in which the amount of generated gas is controlled according to the running state of the vehicle, and a control method thereof.

According to an aspect of the present invention, there is provided an apparatus for generating an oxygen-hydrogen mixed gas for a vehicle, comprising: an electrolytic bath having a plurality of electrode plates and electrolyzing electrolytic solution to generate an oxygen-hydrogen mixed gas; An acceleration sensing part for sensing an acceleration signal of the vehicle, an electronic control part for receiving a signal from the acceleration sensing part and the acceleration sensing part and controlling the operation of the electrolytic cell, a water tank for storing the electrolytic solution and supplying the electrolytic solution to the electrolytic bath, A water removal filter for removing moisture and an electrolyte of the mixed gas produced in the electrolytic bath and an anti-backlash preventing the mixed gas filtered by the moisture removal filter from flowing back in the engine, wherein the electronic control unit controls acceleration, deceleration, And controls the amount of mixed gas generated in the electrolytic cell by dividing the idle state.

The acceleration sensing portion and the acceleration sensing portion may receive a signal from an On Board Diagnostic (OBD) terminal of the vehicle.

The electronic control unit may receive the fuel injection amount, the intake flow rate, the engine speed, and the braking signal from the OBD terminal.

The electronic control unit may adjust the supplied amount of the mixed gas in accordance with the fuel injection amount, the intake air flow rate, and the engine speed when the vehicle is in an accelerated state.

The electronic control unit can minimize the mixed gas supply amount when the vehicle is in the decelerated or idling state.

The electronic control unit may control the operation of the electrolytic bath 200 by a pulse width modulation (PWM) method.

A method for controlling an oxygen-hydrogen mixed gas generating apparatus for a vehicle according to the present invention, the method comprising: sensing an engine start, starting an electrolyzer start, sensing an OBD signal, analyzing a running state, And controlling the electrolytic bath for each of the deceleration, idling, and idling states of the oxygen-hydrogen mixed gas generating apparatus.

According to the oxygen-hydrogen mixed gas generating apparatus and the control method therefor of the present invention, it is possible to install the oxygen-hydrogen mixed gas generating apparatus and the control method thereof in the engine room of a vehicle, and to improve the combustion efficiency of the engine by controlling the gas generation amount according to the running state of the vehicle.

1 is a flow chart of an oxygen-hydrogen mixed gas generating apparatus according to the present invention.
2 is a block diagram showing an electrode according to the present invention.
3 is a flow diagram of an electrode according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

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

1 is a flowchart of a mixed gas generating apparatus according to the present invention. 2 is a block diagram showing an electrode according to the present invention. 3 is a flow diagram of an electrode according to an embodiment of the present invention.

As shown in the figure, a mixed gas generating apparatus according to the present invention includes an electronic control unit 100, a damping-sensing unit 110, an acceleration sensing unit 120, an electrolytic bath 200, a water tank 400, And a backfire prevention device 700.

The electronic control unit 100 can control the operation of the electrolytic bath 200. [ The electronic control unit 100 may include a program for controlling the operation of the electrolytic bath 200 by a PWM (Pulse Width Modulation) method. Pulse width modulation (PWM) is a time division modulation method and is a modulation method in which the pulse width is changed according to a signal. The electronic control unit 100 may be connected to the cathode of the battery through the first power line 130 and may be connected to the electrolytic bath 200 through the second power line 140. The battery may typically be mounted on a vehicle and may have a voltage of 12 volts DC or 24 volts DC. The electronic control unit 100 is connected to the damping-sensing unit 110 and the acceleration sensing unit 120, and can sense a braking signal and an acceleration signal of the vehicle, respectively. In the exemplary embodiment, the acceleration sensing portion 110 and the acceleration sensing portion 120 can receive a signal through one input terminal and can be connected to, for example, an OBD (On Board Diagnostics) terminal of the vehicle. In another exemplary embodiment, the acceleration sensing portion 110 and the acceleration sensing portion 120 may receive a signal through respective input terminals, for example, the acceleration sensing portion 120 may sense a throttle valve opening signal. The display unit can display driving information including the amount of gas mixture, fuel consumption, instantaneous fuel consumption, etc. through the LCD or LED screen.

The electronic control unit 100 may operate the electrolytic bath 200 to supply the mixed gas to the engine when acceleration is detected and minimize the operation of the electrolytic bath 200 when neither acceleration nor braking is sensed or braking is sensed have. More specifically, when the vehicle is accelerated, decelerated, or idling, the mixed gas is supplied according to the fuel injection quantity, the intake flow rate, and the engine speed in the accelerated state. When the vehicle is in the decelerated or idling state, can do.

The electronic control unit 100 can adjust the mixed gas supply amount by analyzing the fuel injection amount information received through the OBD terminal and set the optimum mixed gas supply amount according to the fuel injection amount to increase the combustion efficiency of the engine.

The electrolytic bath 200 may be connected to the electronic control unit 100 through the second power line 140 and may be connected to the positive electrode of the battery through the third power line 150 as described above. The electrolytic bath 200 may include a makeup water inlet 210 and a gas outlet 220. The electrolytic bath 200 has the same structure as that contained in the electrolytic apparatus for water according to the prior art. The electrolytic bath 200 may include a plurality of electrode plates arranged at regular intervals in an electrolytic cell storing electrolytic solution, and the plurality of electrode plates may include stainless steel. The oxygen-hydrogen mixed gas generated by electrolysis of the electrolytic solution 410 in the electrolytic bath 200 may be discharged from the gas discharge port 220 and enter the water tank 400 through the gas transfer pipe 310, The replenishment water supply pipe 320 connected to the replenishment water supply pipe 320 can receive the electrolytic solution.

The water tank 400 supplies supplement water as much as the electrolytic solution of the electrolytic bath 200 is decomposed and consumed. The water tank 400 is connected to the electrolytic bath 200 through the gas transfer pipe 310 and the replenishment water supply pipe 320. In an exemplary embodiment, the electrolyzer 200 or the water tank 400 may include a level sensor to maintain a level of electrolyte in the electrolyzer 200 and a pump (not shown) for sending the makeup water to the electrolyzer 200, . ≪ / RTI >

The oxygen-hydrogen mixed gas that has entered the water tank 400 from the electrolytic bath 200 can be passed through the water removal filter 500, the check valve 600 and the backfire prevention device 700 through the gas transfer pipe 310 have. The check valve 600 can open and close the pipe as needed. The water removal filter 500 removes moisture and electrolyte mixed in the gas mixture produced in the electrolytic bath 200 to prevent impurities from entering the engine combustion chamber have. The backfire prevention device 700 can prevent the backflow of the mixed gas in the opposite direction so as to prevent a mechanical defect or a safety accident that may occur due to the backflow of the mixed gas filtered by the water removal filter 500 in the engine. The mixed gas passing through the anti-backaction device 700 is injected into the engine through the air inlet, and the oxygen-hydrogen mixed gas, fuel, and air can be burned together.

Referring to FIG. 3, a control method of an oxygen-hydrogen mixed gas generator for a vehicle according to the present invention is schematically shown. As shown, the control method includes steps of sensing the engine start, starting the electrolyzer, detecting the OBD signal, analyzing the running state, and controlling the electrolyzer according to the acceleration, deceleration, idling state can do. The detailed description of the control method is the same as that described above, and a duplicated description will be omitted.

As described above, the gas mixture generator for a vehicle according to the present invention can be installed in an engine room of a vehicle, so that space utilization is good, and the combustion efficiency of the engine is increased by controlling the amount of gas generated according to the running state of the vehicle .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Electronic control unit 110:
120: acceleration sensing part 130: first power line
140: second power line 150: third power line
200: electrolytic cell 210: replenishment water inlet
220: gas discharge port 310: gas delivery pipe
320: replenishing water supply pipe 400: water tank
410: electrolytic solution 500: water removing filter
600: Check valve 700: Backfire prevention device

Claims (7)

An electrolytic bath having a plurality of electrode plates and electrolyzing electrolytic solution to generate an oxygen-hydrogen mixed gas;
A damping portion for sensing a braking signal of the vehicle;
An acceleration sensing unit for sensing an acceleration signal of the vehicle;
An electronic control unit receiving a signal from the acceleration sensing unit and the acceleration sensing unit and controlling operation of the electrolytic cell;
A water tank for storing the electrolytic solution and supplying the electrolytic solution to the electrolytic bath;
A moisture removing filter for removing moisture and an electrolyte of the mixed gas produced in the electrolytic bath; And
And a backflow prevention device for preventing the mixed gas filtered by the moisture removal filter from flowing back in the engine,
Wherein the electronic control unit controls the amount of gas mixture generated in the electrolytic cell by classifying acceleration, deceleration, and idling of the vehicle. The apparatus for generating an oxygen-hydrogen mixed gas for a vehicle according to claim 1, wherein the damping-sensing section and the acceleration sensing section receive a signal from an OBD (On Board Diagnostics) terminal of the vehicle. 3. The apparatus according to claim 2, wherein the electronic control unit receives a fuel injection amount, an intake flow rate, an engine speed, and a braking signal from the OBD terminal. 4. The oxygen-hydrogen mixed gas generator according to claim 3, wherein the electronic control unit adjusts the supplied amount of the mixed gas according to the fuel injection amount, the intake flow amount, and the engine speed in the accelerating state of the vehicle. 4. The oxygen-hydrogen mixed gas generating apparatus for a vehicle according to claim 3, wherein the electronic control unit minimizes a mixed gas supply amount when the vehicle is in a decelerated or idling state. The apparatus for generating an oxygen-hydrogen mixed gas for a vehicle according to claim 1, wherein the electronic control unit controls the operation of the electrolytic bath (200) by a pulse width modulation (PWM) method. A method for controlling an oxygen-hydrogen mixed gas generating apparatus for a vehicle according to claim 1,
Sensing an engine start;
Starting an electrolyzer operation;
Sensing an OBD signal;
Analyzing the driving condition; And
And controlling the electrolytic bath for each of the acceleration, deceleration, and idling states of the oxygen-hydrogen mixed gas generator.

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