WO2007148843A1 - Fuel efficiency increasing hybrid system and the method thereof - Google Patents

Fuel efficiency increasing hybrid system and the method thereof Download PDF

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Publication number
WO2007148843A1
WO2007148843A1 PCT/KR2006/002545 KR2006002545W WO2007148843A1 WO 2007148843 A1 WO2007148843 A1 WO 2007148843A1 KR 2006002545 W KR2006002545 W KR 2006002545W WO 2007148843 A1 WO2007148843 A1 WO 2007148843A1
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WO
WIPO (PCT)
Prior art keywords
current
engine
battery
hydrogen
control unit
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Application number
PCT/KR2006/002545
Other languages
French (fr)
Inventor
Tai-Sung Park
Original Assignee
Origin Science Co., Ltd.
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Filing date
Publication date
Application filed by Origin Science Co., Ltd. filed Critical Origin Science Co., Ltd.
Publication of WO2007148843A1 publication Critical patent/WO2007148843A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/10—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone
    • F02M25/12—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone the apparatus having means for generating such gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/32—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/28—Conjoint control of vehicle sub-units of different type or different function including control of fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the present invention relates generally to a hybrid fuel conservation system and a fuel conservation method using the same and, more particularly, to a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, the current stored in the battery is supplied to a device for generating oxygen and hydrogen during the rapid acceleration operation of the engine in order to promote the complete combustion of fuel which is incompletely burned, the device for generating oxygen and hydrogen generates oxygen and hydrogen by electrolyzing water containing an electrolyte solution, the generated oxygen and hydrogen are supplied to the internal combustion engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with this current.
  • Background Art
  • the performance enhancement devices which are additionally mounted in the vehicle are devices for generating oxygen and hydrogen, which are products obtained by electrolyzing water that includes an electrolyte solution.
  • the water containing a small amount of electrolyte solution is supplied into an electrolytic cell, in which positive and negative electrodes are installed, and Direct Current (DC) voltage is applied thereto, thereby generating oxygen and hydrogen mixed gas and then supplying it into the engine.
  • DC Direct Current
  • an ultrasonic vibration means or a device for circulating the water containing the electrolyte solution using a motor is installed in the vehicle performance enhancement devices.
  • the ultrasonic vibration means and the motor can remove the air bubbles, but has a problem in that the structure is very complicated and the installation cost is high, thereby imposing an economical burden on users. Disclosure of Invention Technical Problem
  • an object of the present invention is to provide a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, water, including an electrolyte solution, in a device for generating oxygen and hydrogen is electrolyzed using the current stored in the battery to promote the complete combustion of fuel, which is otherwise incompletely burned during the rapid acceleration operation of the engine, the oxygen and hydrogen generated due to the electrolysis are applied to the engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with the current, so that engine output and fuel efficiency are maximized, the CO and HC content of exhaust gas is reduced, the manufacturing cost is low, and the installation in the internal combustion engine and improvement thereof are easy because the volume thereof is small.
  • Another object of the present invention is to provide a hybrid fuel conservation system and a fuel conservation method using the same, in which water containing an electrolyte solution, which is affected by a magnetic field extending from the north pole of a magnetic body to the south pole thereof, is circulated around the magnetic body, thereby rapidly and completely removing air bubbles formed on the surface of a stack when the water containing the electrolyte solution, which is accommodated in the electrolytic cell of the device for generating oxygen and hydrogen, is electrolyzed, and, thus, promoting electrolysis.
  • the present invention provides a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, the current stored in the battery is supplied to a device for generating oxygen and hydrogen during the rapid acceleration operation of the engine in order to promote the complete combustion of fuel which is incompletely burned, the device for generating oxygen and hydrogen generates oxygen and hydrogen by electrolyzing water containing an electrolyte solution, the generated oxygen and hydrogen are supplied to the internal combustion engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with this current.
  • the hybrid fuel conservation system includes a throttle position sensor for detecting a degree of opening of a throttle valve and transmitting a detected signal indicating the detected degree of opening to a control unit; a stack current measurement unit for measuring current stored in the battery and transmitting information about an amount of the current remaining in the battery to the control unit; an Analog/Digital (AD) conversion unit for converting the analog signal-type detection signal indicating the detected degree of opening, which is transmitted from the throttle position sensor, into a digital signal and transmitting the digital signal to the control unit; the control unit for cutting off current being supplied to the device for generating oxygen and hydrogen, charging the battery with the current during an idle operation of the engine, determining whether a rapid acceleration operation or high-speed operation of the engine is occurring based on the detection signal indicating the detected degree of opening transmitted from the throttle position sensor, delivering the current of the battery to a current driver depending on an amount of current stored in the battery during the rapid acceleration operation of the engine, and controlling the current driver so that the current driver cuts off the current supplied to the device for
  • the hybrid fuel conservation system further include a battery voltage measurement unit for measuring voltage of the battery, determining whether the engine has started, transmitting an over-discharge signal to the control unit when the voltage of the battery is lower than a predetermined voltage value, and controlling the voltage of the battery until the voltage reaches a value equal to or higher than a predetermined voltage value when the over-discharge signal is input; and an alarm unit for providing a user with the over-discharge signal for the battery, which is transmitted from the battery voltage measurement unit to the control unit, and a water-level detection signal for the water containing the electrolyte solution, which is transmitted from a water-level sensor to the control unit, through visual and audible means.
  • a battery voltage measurement unit for measuring voltage of the battery, determining whether the engine has started, transmitting an over-discharge signal to the control unit when the voltage of the battery is lower than a predetermined voltage value, and controlling the voltage of the battery until the voltage reaches a value equal to or higher than a predetermined voltage value when the over-
  • the control unit determines that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve, which is detected by the throttle position sensor, is within a range of 0% to 100%, determines that high-speed operation of the engine is occurring if a rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determines that normal operation of the engine is occurring if the degree of opening continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve is within a range of 0% to 50%.
  • the device for generating oxygen and hydrogen includes an electrolytic cell comprising a space for accommodating the water containing the electrolyte solution; a magnetic body mounted in a center portion of the electrolytic cell, and configured to circulate the water containing the electrolyte solution using a magnetic field when the water containing the electrolyte solution is electrolyzed by supplied current, thereby removing air bubbles formed on the surface of a stack; the stack formed in a disk shape so as to be fitted around the magnetic body through a through hole formed above a center portion of the cell, and configured to act as positive and negative electrode plates for electrolyzing the water containing the electrolyte solution when current is supplied from the battery; the water-level sensor for detecting a level of the water containing the electrolyte solution accommodated in the electrolytic cell, and transmitting the water-level detection signal when the level of water containing the electrolyte solution is lower than a predetermined level; and a supply path for guiding the oxygen and hydrogen gases generated due to the electrolysis to an air filter to
  • the magnetic body is mounted in the center portion of the electrolytic cell, and circulates oxygen ions and hydrogen ions generated by electrolysis using a magnetic field extending from a north pole to a south pole and, thus, circulates the water containing the electrolyte solution around the magnetic body, thereby removing the air bubbles formed on the surface of the stack.
  • the magnetic body is a permanent magnet.
  • the fuel conservation method using a hybrid fuel conservation system includes the steps of (a) charging a battery with current during an idle operation of an internal combustion engine; (b) electrolyzing water containing an electrolyte solution, which is accommodated in a device for generating oxygen and hydrogen, into oxygen and hydrogen using current, which is stored in the battery during the idle operation of the engine, in order to promote complete combustion of fuel which is incompletely burned during a rapid acceleration operation of the engine, and supplying the oxygen and hydrogen, to an air filter so as to be supplied to the internal combustion engine, air bubbles, which from on a surface of a stack during the electrolysis, being removed by circulating the water containing the electrolyte solution around a magnetic body under influence of magnetism of the magnetic body; and (c) cutting off current supplied to the device for generating oxygen and hydrogen and charging the battery with the current during a high-speed operation of the engine.
  • the step (a) includes the steps of (al) determining that an idle operation of the engine is occurring when a degree of opening of a throttle valve detected by a throttle position sensor is within a range of 0% to 5%; and (a2) a control unit cutting off the current supplied to the device for generating oxygen and hydrogen and charging the battery with the current when it is determined that the idle operation of the engine is occurring at the step (al).
  • the step (b) includes comprises the steps of (bl) when a throttle position sensor detects a degree of opening of a throttle valve and transmits it to a control unit, determining whether the rapid acceleration operation of the engine is occurring using a program pre-installed in the control unit based on a detection signal indicating the degree of opening; (b2) if the control unit determines that the rapid acceleration operation of the engine is occurring, supplying current stored in the battery to the device for generating oxygen and hydrogen through a current driver depending on an amount of the current stored in the battery; and (b3) electrolyzing the water containing the electrolyte solution in the device for generating oxygen and hydrogen depending on an amount of current supplied through the current driver, rapidly removing air bubbles which form on a surface of a stack during the electrolysis, and supplying the oxygen and hydrogen generated through the electrolysis to an air filter so as to be supplied to the engine.
  • the step (c) includes the steps of (cl) when a throttle position engine detects a degree of opening of a throttle valve and transmits it to a control unit, determining whether the high-speed operation of the engine is occurring using a program pre- installed in the control unit based on a detection signal indicating the degree of opening; (c2) if the control unit determines that the high-speed operation of the engine is occurring, the control unit cutting off current being supplied to the device for generating oxygen and hydrogen; and (c3) charging the battery with the current.
  • the step (a2) includes the steps of (a21) a battery voltage measurement unit measuring voltage of the battery which is applied to the control unit and determining whether a vehicle has started; (a22) if the measured voltage of the battery is discharged, controlling current of the battery being supplied to the control unit; and (a23) an alarm unit indicating an over-discharge signal transmitted from the control unit using a visual means and an audible means.
  • the step (bl) includes the step of determining that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of a throttle valve, which is detected by the throttle position sensor, is within a range of 0% to 100%.
  • the step (b3) includes the steps of (b31) detecting a level of the water, containing the electrolyte solution, of the device of generating oxygen and hydrogen and, when the level of the water containing the electrolyte solution is lower than a predetermined level, transmitting a water-level detection signal from a water-level sensor to the control unit; (b32) transmitting the water-level detection signal from the control unit to the alarm unit; and (b33) the alarm unit indicating the water-level detection signal transmitted from the control unit using a visual means and an audible means.
  • the step (cl) includes the step of determining that the high-speed operation of the engine is occurring if a rate of change of opening less than about 10% continues for more than 10 seconds when the degree of opening of a throttle valve detected by the throttle position sensor is within a range of 50% to 100%.
  • the present invention can provide a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, water, including an electrolyte solution, in a device for generating oxygen and hydrogen is electrolyzed using the current stored in the battery to promote the complete combustion of fuel, which is otherwise incompletely burned during the rapid acceleration operation of the engine, the oxygen and hydrogen generated due to electrolysis are applied to the engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with the current, so that engine output and fuel efficiency are maximized, the CO and HC content of exhaust gas is reduced, the manufacturing cost is low, and the installation in the internal combustion engine and improvement thereof are easy because the volume thereof is small.
  • the present invention can provide a hybrid fuel conservation system and a fuel conservation method using the same, in which water containing an electrolyte solution, which is affected by a magnetic field extending from the north pole of a magnetic body to the south pole thereof, is circulated around the magnetic body, thereby rapidly and completely removing air bubbles formed on the surface of a stack when the water containing the electrolyte solution, which is accommodated in the electrolytic cell of the device for generating oxygen and hydrogen, is electrolyzed, and, thus, promoting electrolysis.
  • FIG. 1 is a schematic diagram illustrating the overall construction of a hybrid fuel conservation system according to an embodiment of the present invention
  • FIG. 2 is a block diagram illustrating the hybrid fuel conservation system according to the embodiment of the present invention in detail
  • FIG. 3 is a schematic diagram illustrating the construction of the device for generating oxygen and hydrogen of the hybrid fuel conservation system according to the embodiment of the present invention.
  • FIG. 4 is a flowchart schematically illustrating a method of conserving fuel using the hybrid fuel conservation system according to an embodiment of the present invention. Best Mode for Carrying Out the Invention
  • FIG. 1 is a schematic diagram illustrating the overall construction of a hybrid fuel conservation system according to an embodiment of the present invention
  • FIG. 2 is a block diagram illustrating the hybrid fuel conservation system according to the embodiment of the present invention in detail
  • FIG. 3 is a schematic diagram illustrating the construction of the device for generating oxygen and hydrogen of the hybrid fuel conservation system according to the embodiment of the present invention.
  • the system 100 for conserving hybrid fuel according to the present invention can be installed in the internal combustion engine of a generator, a vehicle, a ship, an airplane or a train, but is described here based on the case in which the internal combustion engine is installed in a vehicle.
  • the hybrid fuel conservation system 100 is installed in the internal combustion engine of a vehicle which is constructed such that fuel is supplied to an engine 300 along with air through an air filter 200.
  • the hybrid fuel conservation system 100 includes a throttle position sensor 110, an Analog/Digital (A/D) conversion unit 120, a control unit 130, a current driver 140, a device 150 for generating oxygen and hydrogen, a battery voltage measurement unit 160, a stack current measurement unit 170, an alarm unit 180 and a battery 190.
  • A/D Analog/Digital
  • the throttle position sensor 110 is connected to a throttle valve 112.
  • the throttle valve 112 which is the valve for regulating the amount of air flowing into the engine of the vehicle, detects the opening angle of the throttle valve 112, thereby detecting the degree of opening of the throttle valve 112.
  • the A/D conversion unit 120 converts an analog signal, which is received from the throttle position sensor 110 owing to detection of the degree of opening of the throttle valve 12, into a digital signal, transmits it to the control unit 130 and converts an analog signal which the battery voltage measurement unit 160 and the stack current measurement unit 170, which will be described below, transmit to the control unit 130, into a digital signal.
  • control unit 130 be programmed to cut off the current of the device 150 for generating oxygen and hydrogen, to charge the battery with the current at the time of the idle operation of the engine 300, to receive a signal representing the degree of opening of the throttle valve 112 from the throttle position sensor 110, to determine whether the rapid acceleration operation or high-speed operation of the engine 300 is occurring, to deliver the current of the battery 190 to the current driver 140 depending on the amount of charge stored in the battery during the rapid acceleration operation of the engine 300, to cut off the current of the device 150 for generating oxygen and hydrogen, and to charge the battery with the current during the high-speed operation of the engine.
  • a 0% degree of opening of the throttle valve 112 means the state in which the throttle valve 112 is completely closed, and a 100% degree of opening means the state in which the throttle valve 112 is completely opened.
  • control unit 130 determine that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve 112, which is detected by the throttle position sensor 110, is within a range of 0% to 100%, determine that high-speed operation of the engine is occurring if the rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determine that normal operation of the engine is occurring if the degree of opening is continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve 112 is within a range of 0% to 50%.
  • rate of change refers to the rate at which the degree of opening of the throttle valve 12 is changed.
  • control unit 130 determines that the engine is idling when the degree of opening of the throttle valve 112 detected by the throttle position sensor 110 is within a range of 0% to 5%.
  • the current driver 140 regulates current supplied to the device 150 for generating oxygen and hydrogen under the control of the control unit depending on the amount of current stored in the battery 190 during the rapid acceleration operation of the engine 300.
  • a magnetic body 153 is mounted in the center portion of an electrolytic cell 151 that has a space therein for accommodating the water containing the electrolyte solution, and a through hole is formed in the center portion of the top of the device 150 above the magnetic body 153.
  • a stack 154 which is formed in a disk shape to be fitted around the magnetic body 153 through the through hole, is inserted into the through hole and thus installed.
  • the stack 54 acts as electrode plates for electrolyzing the water containing the electrolyte solution when current is supplied from the battery 190.
  • the positive and negative terminals thereof may be respectively located on the top and bottom of the stack 154 and vice versa. However, in the present invention, it is preferred that the positive terminal be located on the top of the stack 154 and that the negative electrode be located in the bottom thereof.
  • the magnetic body 153 be a permanent magnet.
  • oxygen ions and hydrogen ions generated due to the electrolysis are affected by a magnetic field extending from the north pole of the magnetic body 153 to the south pole thereof, thereby circulating around the magnetic body 153.
  • the water containing the electrolyte solution including circulating oxygen ions and hydrogen ions circulates around the magnetic body 153, and, therefore, the air bubbles on the surface of the stack 154 are rapidly removed.
  • the oxygen and hydrogen gases are supplied to the engine 300 through a supply path 155 and then through the air filter 200.
  • the amounts of oxygen and hydrogen, which are generated by the device 150 for generating oxygen and hydrogen, are regulated depending on the amount of current supplied from the current driver 140.
  • the amount of current stored in the battery 190 varies depending on whether the throttle valve 112 is open.
  • the stack current measurement unit 170 measures the current stored in the battery 190.
  • the control unit 130 controls the current driver 140 depending on the remaining amount of current stored in the battery 190 thereby controlling the current supplied to the device 150 for generating oxygen and hydrogen, and, thus, regulating the amounts of oxygen and hydrogen gases generated by the device 150 for generating oxygen and hydrogen.
  • the oxygen and hydrogen gases which promote the complete combustion of fuel that incompletely burned, are supplied to the inside the engine 300 in proportion thereto.
  • the oxygen and hydrogen gases generated by the device 150 for generating oxygen and hydrogen are supplied to the engine 300 through the supply path 155 and then through the air filter 200.
  • a water-level sensor 152 detects the level of the water containing the electrolyte solution of the device 150 for generating oxygen and hydrogen, and is installed on one side of the electrolytic cell 151 of the device 150 for generating oxygen and hydrogen so as to transmit a water-level detection signal to the control unit 130 when the level of the water containing the electrolyte solution is lower than a predetermined level.
  • the battery voltage measurement unit 160 measure the voltage of the battery 190, determine whether the engine 300 has started , and transmit an over-discharge signal to the control unit 130 when the voltage of the battery 190 is lower than a predetermined voltage value of 12.5 V. It is preferred that the control unit 130 control the current of the battery 190 until the voltage of the battery 190 reaches a value equal to or higher than a predetermined voltage value of 13 V when the over-discharge signal is input.
  • the alarm unit 180 notifies a user about the need to add water and electrolytic fluid, and the discharge of the battery based on a battery over-discharge signal, which is transmitted from the battery voltage measurement unit 160 to the control unit 130, and the water-level detection signal, which is transmitted from the water-level sensor 152 to the control unit 130, using a visual means and an audible means.
  • FIG. 4 is a flowchart schematically illustrating a method of conserving fuel using the hybrid fuel conservation system according to an embodiment of the present invention.
  • the battery 190 is charged with current during the idle operation of the internal combustion engine 300.
  • the degree of opening of the throttle valve 112 is within a range of 0% to 5%, and the throttle position sensor 110 detects this and transfers a detection signal to the control unit 130, the control unit 130 becomes aware of the idling state of the engine.
  • the control unit 130 When receiving the idling signal through the throttle position sensor 110 during i dling of the engine 300, the control unit 130 cuts off current supplied to the device 150 for generating oxygen and hydrogen. The current is supplied to and stored in the battery 190 at step S201.
  • the control unit 130 determines whether the rapid acceleration operation or high-speed operation of the engine 300 is occurring based on the detected signal using a predetermined program.
  • the control unit 130 determines that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve 112, which is detected by the throttle position sensor 110, is within a range of 0% to 100%, d etermines that high-speed operation of the engine is occurring if the rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determines that normal operation of the engine is occurring if the degree of opening continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve 112 is within a range of 0% to 50%.
  • control unit 130 determines that the rapid acceleration operation of the engine 300 is occurring, and controls the current driver 140 in proportion to the amount of current stored in the battery 190, so that the current stored in the battery 190 is supplied to the device 150 for generating oxygen and hydrogen at step S203.
  • oxygen ions and hydrogen ions generated from the electrolysis are affected by a magnetic field extending from the north pole of the magnetic body 153 to the south pole, thereby circulating around the magnetic body 153.
  • the oxygen and hydrogen gases generated by the device 150 for generating oxygen and hydrogen are supplied to the engine 300 through a supply path 155 and then the air filter 200 at step S205.
  • the water-level sensor 152 detects the level of the water containing the electrolyte solution in the device 150 for generating oxygen and hydrogen, and is installed on one side of the electrolytic cell 151 of the device 150 for generating oxygen and hydrogen so as to transmit a water-level detection signal to the control unit 130 when the level of the water containing the electrolyte solution is lower than a predetermined level.
  • the water-level sensor 152 which is installed on one side of the inside of the device 150 for generating oxygen and hydrogen, detects the level of the water containing the electrolyte solution of the electrolytic cell 151 and transmit a water- level detection signal to the control unit 130 when the amount of water containing the electrolyte solution is below a predetermined level.
  • the control unit 130 transmits the water-level detection signal to the alarm unit 180.
  • the alarm unit 180 notifies a user about the need to add water and electrolytic fluid based on the water-level detection signal transmitted from the control unit 130 using a visual means and an audible means.
  • control unit 130 cuts off the current being supplied to the device 150 for generating oxygen and hydrogen, and charges the battery 190 with the current at step S206.
  • Whether the engine 300 has started is determined based on the voltage of the battery 190 measured by the battery voltage measurement unit 160, and the over- discharge signal is transmitted to the control unit 130 when the voltage of the battery 190 is lower than a predetermined voltage value of 12.5 V.
  • the control unit 130 controls the voltage of the battery 190 until the voltage is higher than a predetermined voltage value of 13 V when the over-discharge signal is input.
  • the control unit 130 transmits the over-discharge signal to the alarm unit 180.
  • the alarm unit 180 notifies the user of whether the battery is discharged by indicating the over-discharge signal using a visual means and an audible means.

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Abstract

Disclosed herein is a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, the current stored in the battery is supplied to a device for generating oxygen and hydrogen during the rapid acceleration operation of the engine in order to promote the complete combustion of fuel which is incompletely burned, the device for generating oxygen and hydrogen generates oxygen and hydrogen by electrolyzing water containing an electrolyte solution, the generated oxygen and hydrogen are supplied to the internal combustion engine, current supplied to the device for generating oxygen and hydrogen is cut off during the highspeed operation of the engine, and the battery is charged with this current.

Description

Description
FUEL EFFICIENCY INCREASING HYBRID SYSTEM AND THE
METHOD THEREOF
Technical Field
[1] The present invention relates generally to a hybrid fuel conservation system and a fuel conservation method using the same and, more particularly, to a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, the current stored in the battery is supplied to a device for generating oxygen and hydrogen during the rapid acceleration operation of the engine in order to promote the complete combustion of fuel which is incompletely burned, the device for generating oxygen and hydrogen generates oxygen and hydrogen by electrolyzing water containing an electrolyte solution, the generated oxygen and hydrogen are supplied to the internal combustion engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with this current. Background Art
[2] With the global increase in the number of vehicles these days, air pollution caused by exhaust gas emitted from the engines of the vehicles is becoming a serious issue. Therefore, regulations regarding toxic substances emitted from the vehicles are getting stronger, and vehicle manufacturers are trying to reduce the amount of toxic substances in the exhaust gas.
[3] Exhaust gas is generated because fuel is incompletely burned in an engine during the rapid acceleration of vehicles. In order to solve the problem of incomplete combustion of fuel, various performance enhancement devices have been additionally mounted in the combustion engine or combustion device of the vehicle.
[4] The performance enhancement devices which are additionally mounted in the vehicle are devices for generating oxygen and hydrogen, which are products obtained by electrolyzing water that includes an electrolyte solution. In these devices, the water containing a small amount of electrolyte solution is supplied into an electrolytic cell, in which positive and negative electrodes are installed, and Direct Current (DC) voltage is applied thereto, thereby generating oxygen and hydrogen mixed gas and then supplying it into the engine.
[5] However, such performance enhancement devices have a problem in that, due to air bubbles formed on the surfaces of the positive and negative electrodes, the surface resistances thereof increase when the water containing the electrolyte solution is electrolyzed, so that electrolysis is not efficiently conducted.
[6] Furthermore, in order to resolve the problem, an ultrasonic vibration means or a device for circulating the water containing the electrolyte solution using a motor is installed in the vehicle performance enhancement devices.
[7] However, the ultrasonic vibration means and the motor can remove the air bubbles, but has a problem in that the structure is very complicated and the installation cost is high, thereby imposing an economical burden on users. Disclosure of Invention Technical Problem
[8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, water, including an electrolyte solution, in a device for generating oxygen and hydrogen is electrolyzed using the current stored in the battery to promote the complete combustion of fuel, which is otherwise incompletely burned during the rapid acceleration operation of the engine, the oxygen and hydrogen generated due to the electrolysis are applied to the engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with the current, so that engine output and fuel efficiency are maximized, the CO and HC content of exhaust gas is reduced, the manufacturing cost is low, and the installation in the internal combustion engine and improvement thereof are easy because the volume thereof is small.
[9] Another object of the present invention is to provide a hybrid fuel conservation system and a fuel conservation method using the same, in which water containing an electrolyte solution, which is affected by a magnetic field extending from the north pole of a magnetic body to the south pole thereof, is circulated around the magnetic body, thereby rapidly and completely removing air bubbles formed on the surface of a stack when the water containing the electrolyte solution, which is accommodated in the electrolytic cell of the device for generating oxygen and hydrogen, is electrolyzed, and, thus, promoting electrolysis. Technical Solution
[10] In order to accomplish the above objects, the present invention provides a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, the current stored in the battery is supplied to a device for generating oxygen and hydrogen during the rapid acceleration operation of the engine in order to promote the complete combustion of fuel which is incompletely burned, the device for generating oxygen and hydrogen generates oxygen and hydrogen by electrolyzing water containing an electrolyte solution, the generated oxygen and hydrogen are supplied to the internal combustion engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with this current.
[11] Additionally, the hybrid fuel conservation system includes a throttle position sensor for detecting a degree of opening of a throttle valve and transmitting a detected signal indicating the detected degree of opening to a control unit; a stack current measurement unit for measuring current stored in the battery and transmitting information about an amount of the current remaining in the battery to the control unit; an Analog/Digital (AD) conversion unit for converting the analog signal-type detection signal indicating the detected degree of opening, which is transmitted from the throttle position sensor, into a digital signal and transmitting the digital signal to the control unit; the control unit for cutting off current being supplied to the device for generating oxygen and hydrogen, charging the battery with the current during an idle operation of the engine, determining whether a rapid acceleration operation or high-speed operation of the engine is occurring based on the detection signal indicating the detected degree of opening transmitted from the throttle position sensor, delivering the current of the battery to a current driver depending on an amount of current stored in the battery during the rapid acceleration operation of the engine, and controlling the current driver so that the current driver cuts off the current supplied to the device for generating oxygen and hydrogen and charging the battery with the current during the high-speed operation of the engine; the current driver for regulating the current supplied to the device for generating oxygen and hydrogen depending on an amount of current stored in the battery during the rapid acceleration operation of the engine, and cutting off the current supplied to the device for generating oxygen and hydrogen during the highspeed operation of the engine; and the device for generating oxygen and hydrogen, in which amounts of oxygen and hydrogen, which are generated, are regulated in proportion to an amount of current supplied from the current driver, water containing the electrolyte solution circulated under influence of a magnetic field of a magnetic body, thereby removing air bubbles formed on a surface of a stack when the water containing the electrolyte solution is electrolyzed, and oxygen and hydrogen gases generated by electrolysis are supplied to an air filter to be supplied to the engine.
[12] The hybrid fuel conservation system further include a battery voltage measurement unit for measuring voltage of the battery, determining whether the engine has started, transmitting an over-discharge signal to the control unit when the voltage of the battery is lower than a predetermined voltage value, and controlling the voltage of the battery until the voltage reaches a value equal to or higher than a predetermined voltage value when the over-discharge signal is input; and an alarm unit for providing a user with the over-discharge signal for the battery, which is transmitted from the battery voltage measurement unit to the control unit, and a water-level detection signal for the water containing the electrolyte solution, which is transmitted from a water-level sensor to the control unit, through visual and audible means.
[13] The control unit determines that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve, which is detected by the throttle position sensor, is within a range of 0% to 100%, determines that high-speed operation of the engine is occurring if a rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determines that normal operation of the engine is occurring if the degree of opening continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve is within a range of 0% to 50%.
[14] The device for generating oxygen and hydrogen includes an electrolytic cell comprising a space for accommodating the water containing the electrolyte solution; a magnetic body mounted in a center portion of the electrolytic cell, and configured to circulate the water containing the electrolyte solution using a magnetic field when the water containing the electrolyte solution is electrolyzed by supplied current, thereby removing air bubbles formed on the surface of a stack; the stack formed in a disk shape so as to be fitted around the magnetic body through a through hole formed above a center portion of the cell, and configured to act as positive and negative electrode plates for electrolyzing the water containing the electrolyte solution when current is supplied from the battery; the water-level sensor for detecting a level of the water containing the electrolyte solution accommodated in the electrolytic cell, and transmitting the water-level detection signal when the level of water containing the electrolyte solution is lower than a predetermined level; and a supply path for guiding the oxygen and hydrogen gases generated due to the electrolysis to an air filter to be supplied to the engine.
[15] The magnetic body is mounted in the center portion of the electrolytic cell, and circulates oxygen ions and hydrogen ions generated by electrolysis using a magnetic field extending from a north pole to a south pole and, thus, circulates the water containing the electrolyte solution around the magnetic body, thereby removing the air bubbles formed on the surface of the stack.
[16] The magnetic body is a permanent magnet.
[17] The fuel conservation method using a hybrid fuel conservation system, includes the steps of (a) charging a battery with current during an idle operation of an internal combustion engine; (b) electrolyzing water containing an electrolyte solution, which is accommodated in a device for generating oxygen and hydrogen, into oxygen and hydrogen using current, which is stored in the battery during the idle operation of the engine, in order to promote complete combustion of fuel which is incompletely burned during a rapid acceleration operation of the engine, and supplying the oxygen and hydrogen, to an air filter so as to be supplied to the internal combustion engine, air bubbles, which from on a surface of a stack during the electrolysis, being removed by circulating the water containing the electrolyte solution around a magnetic body under influence of magnetism of the magnetic body; and (c) cutting off current supplied to the device for generating oxygen and hydrogen and charging the battery with the current during a high-speed operation of the engine.
[18] The step (a) includes the steps of (al) determining that an idle operation of the engine is occurring when a degree of opening of a throttle valve detected by a throttle position sensor is within a range of 0% to 5%; and (a2) a control unit cutting off the current supplied to the device for generating oxygen and hydrogen and charging the battery with the current when it is determined that the idle operation of the engine is occurring at the step (al).
[19] The step (b) includes comprises the steps of (bl) when a throttle position sensor detects a degree of opening of a throttle valve and transmits it to a control unit, determining whether the rapid acceleration operation of the engine is occurring using a program pre-installed in the control unit based on a detection signal indicating the degree of opening; (b2) if the control unit determines that the rapid acceleration operation of the engine is occurring, supplying current stored in the battery to the device for generating oxygen and hydrogen through a current driver depending on an amount of the current stored in the battery; and (b3) electrolyzing the water containing the electrolyte solution in the device for generating oxygen and hydrogen depending on an amount of current supplied through the current driver, rapidly removing air bubbles which form on a surface of a stack during the electrolysis, and supplying the oxygen and hydrogen generated through the electrolysis to an air filter so as to be supplied to the engine.
[20] The step (c) includes the steps of (cl) when a throttle position engine detects a degree of opening of a throttle valve and transmits it to a control unit, determining whether the high-speed operation of the engine is occurring using a program pre- installed in the control unit based on a detection signal indicating the degree of opening; (c2) if the control unit determines that the high-speed operation of the engine is occurring, the control unit cutting off current being supplied to the device for generating oxygen and hydrogen; and (c3) charging the battery with the current. [21] The step (a2) includes the steps of (a21) a battery voltage measurement unit measuring voltage of the battery which is applied to the control unit and determining whether a vehicle has started; (a22) if the measured voltage of the battery is discharged, controlling current of the battery being supplied to the control unit; and (a23) an alarm unit indicating an over-discharge signal transmitted from the control unit using a visual means and an audible means.
[22] The step (bl) includes the step of determining that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of a throttle valve, which is detected by the throttle position sensor, is within a range of 0% to 100%.
[23] The step (b3) includes the steps of (b31) detecting a level of the water, containing the electrolyte solution, of the device of generating oxygen and hydrogen and, when the level of the water containing the electrolyte solution is lower than a predetermined level, transmitting a water-level detection signal from a water-level sensor to the control unit; (b32) transmitting the water-level detection signal from the control unit to the alarm unit; and (b33) the alarm unit indicating the water-level detection signal transmitted from the control unit using a visual means and an audible means.
[24] The step (cl) includes the step of determining that the high-speed operation of the engine is occurring if a rate of change of opening less than about 10% continues for more than 10 seconds when the degree of opening of a throttle valve detected by the throttle position sensor is within a range of 50% to 100%.
Advantageous Effects
[25] The present invention can provide a hybrid fuel conservation system and a fuel conservation method using the same, in which a battery is charged with current during the idle operation of an internal combustion engine, water, including an electrolyte solution, in a device for generating oxygen and hydrogen is electrolyzed using the current stored in the battery to promote the complete combustion of fuel, which is otherwise incompletely burned during the rapid acceleration operation of the engine, the oxygen and hydrogen generated due to electrolysis are applied to the engine, current supplied to the device for generating oxygen and hydrogen is cut off during the high-speed operation of the engine, and the battery is charged with the current, so that engine output and fuel efficiency are maximized, the CO and HC content of exhaust gas is reduced, the manufacturing cost is low, and the installation in the internal combustion engine and improvement thereof are easy because the volume thereof is small.
[26] Furthermore, the present invention can provide a hybrid fuel conservation system and a fuel conservation method using the same, in which water containing an electrolyte solution, which is affected by a magnetic field extending from the north pole of a magnetic body to the south pole thereof, is circulated around the magnetic body, thereby rapidly and completely removing air bubbles formed on the surface of a stack when the water containing the electrolyte solution, which is accommodated in the electrolytic cell of the device for generating oxygen and hydrogen, is electrolyzed, and, thus, promoting electrolysis. Brief Description of the Drawings
[27] FIG. 1 is a schematic diagram illustrating the overall construction of a hybrid fuel conservation system according to an embodiment of the present invention;
[28] FIG. 2 is a block diagram illustrating the hybrid fuel conservation system according to the embodiment of the present invention in detail;
[29] FIG. 3 is a schematic diagram illustrating the construction of the device for generating oxygen and hydrogen of the hybrid fuel conservation system according to the embodiment of the present invention; and
[30] FIG. 4 is a flowchart schematically illustrating a method of conserving fuel using the hybrid fuel conservation system according to an embodiment of the present invention. Best Mode for Carrying Out the Invention
[31] Preferred embodiments of a hybrid fuel conservation system and a fuel conservation method using the same according to the present invention are described below with reference to the accompanying drawings.
[32] FIG. 1 is a schematic diagram illustrating the overall construction of a hybrid fuel conservation system according to an embodiment of the present invention, FIG. 2 is a block diagram illustrating the hybrid fuel conservation system according to the embodiment of the present invention in detail, and FIG. 3 is a schematic diagram illustrating the construction of the device for generating oxygen and hydrogen of the hybrid fuel conservation system according to the embodiment of the present invention.
[33] Referring to FIGS. 1 to 3, the system 100 for conserving hybrid fuel according to the present invention can be installed in the internal combustion engine of a generator, a vehicle, a ship, an airplane or a train, but is described here based on the case in which the internal combustion engine is installed in a vehicle.
[34] The hybrid fuel conservation system 100 according to the present invention is installed in the internal combustion engine of a vehicle which is constructed such that fuel is supplied to an engine 300 along with air through an air filter 200.
[35] The hybrid fuel conservation system 100 according to the present invention includes a throttle position sensor 110, an Analog/Digital (A/D) conversion unit 120, a control unit 130, a current driver 140, a device 150 for generating oxygen and hydrogen, a battery voltage measurement unit 160, a stack current measurement unit 170, an alarm unit 180 and a battery 190.
[36] The throttle position sensor 110 is connected to a throttle valve 112. The throttle valve 112, which is the valve for regulating the amount of air flowing into the engine of the vehicle, detects the opening angle of the throttle valve 112, thereby detecting the degree of opening of the throttle valve 112.
[37] The A/D conversion unit 120 converts an analog signal, which is received from the throttle position sensor 110 owing to detection of the degree of opening of the throttle valve 12, into a digital signal, transmits it to the control unit 130 and converts an analog signal which the battery voltage measurement unit 160 and the stack current measurement unit 170, which will be described below, transmit to the control unit 130, into a digital signal.
[38] It is preferred that the control unit 130 be programmed to cut off the current of the device 150 for generating oxygen and hydrogen, to charge the battery with the current at the time of the idle operation of the engine 300, to receive a signal representing the degree of opening of the throttle valve 112 from the throttle position sensor 110, to determine whether the rapid acceleration operation or high-speed operation of the engine 300 is occurring, to deliver the current of the battery 190 to the current driver 140 depending on the amount of charge stored in the battery during the rapid acceleration operation of the engine 300, to cut off the current of the device 150 for generating oxygen and hydrogen, and to charge the battery with the current during the high-speed operation of the engine.
[39] A 0% degree of opening of the throttle valve 112 means the state in which the throttle valve 112 is completely closed, and a 100% degree of opening means the state in which the throttle valve 112 is completely opened.
[40] It is preferred that the control unit 130 determine that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve 112, which is detected by the throttle position sensor 110, is within a range of 0% to 100%, determine that high-speed operation of the engine is occurring if the rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determine that normal operation of the engine is occurring if the degree of opening is continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve 112 is within a range of 0% to 50%.
[41] The term "rate of change" refers to the rate at which the degree of opening of the throttle valve 12 is changed.
[42] Furthermore, the control unit 130 determines that the engine is idling when the degree of opening of the throttle valve 112 detected by the throttle position sensor 110 is within a range of 0% to 5%.
[43] It is preferable to cut off current supplied to the device 150 for generating oxygen and hydrogen to be described below, regardless of variation in the time required for completion of opening when the degree of opening of the throttle valve 112 is within a range of about 0% to 5%.
[44] The current driver 140 regulates current supplied to the device 150 for generating oxygen and hydrogen under the control of the control unit depending on the amount of current stored in the battery 190 during the rapid acceleration operation of the engine 300.
[45] In the device 150 for generating oxygen and hydrogen, a magnetic body 153 is mounted in the center portion of an electrolytic cell 151 that has a space therein for accommodating the water containing the electrolyte solution, and a through hole is formed in the center portion of the top of the device 150 above the magnetic body 153. A stack 154, which is formed in a disk shape to be fitted around the magnetic body 153 through the through hole, is inserted into the through hole and thus installed.
[46] The stack 54 acts as electrode plates for electrolyzing the water containing the electrolyte solution when current is supplied from the battery 190. The positive and negative terminals thereof may be respectively located on the top and bottom of the stack 154 and vice versa. However, in the present invention, it is preferred that the positive terminal be located on the top of the stack 154 and that the negative electrode be located in the bottom thereof.
[47] Furthermore, it is preferred that the magnetic body 153 be a permanent magnet.
When the water containing the electrolyte solution is electrolyzed due to the current applied to the positive and negative terminals of the stack 154, air bubbles form on the surface of the stack 154.
[48] At this time, oxygen ions and hydrogen ions generated due to the electrolysis are affected by a magnetic field extending from the north pole of the magnetic body 153 to the south pole thereof, thereby circulating around the magnetic body 153.
[49] In this case, the water containing the electrolyte solution including circulating oxygen ions and hydrogen ions circulates around the magnetic body 153, and, therefore, the air bubbles on the surface of the stack 154 are rapidly removed.
[50] The oxygen and hydrogen gases are supplied to the engine 300 through a supply path 155 and then through the air filter 200.
[51] Furthermore, the amounts of oxygen and hydrogen, which are generated by the device 150 for generating oxygen and hydrogen, are regulated depending on the amount of current supplied from the current driver 140. The amount of current stored in the battery 190 varies depending on whether the throttle valve 112 is open. [52] In this case, the stack current measurement unit 170 measures the current stored in the battery 190. The control unit 130 controls the current driver 140 depending on the remaining amount of current stored in the battery 190 thereby controlling the current supplied to the device 150 for generating oxygen and hydrogen, and, thus, regulating the amounts of oxygen and hydrogen gases generated by the device 150 for generating oxygen and hydrogen.
[53] That is, as the output of the engine 300 increases, the oxygen and hydrogen gases, which promote the complete combustion of fuel that incompletely burned, are supplied to the inside the engine 300 in proportion thereto. The oxygen and hydrogen gases generated by the device 150 for generating oxygen and hydrogen are supplied to the engine 300 through the supply path 155 and then through the air filter 200.
[54] A water-level sensor 152 detects the level of the water containing the electrolyte solution of the device 150 for generating oxygen and hydrogen, and is installed on one side of the electrolytic cell 151 of the device 150 for generating oxygen and hydrogen so as to transmit a water-level detection signal to the control unit 130 when the level of the water containing the electrolyte solution is lower than a predetermined level.
[55] Furthermore, it is preferred that the battery voltage measurement unit 160 measure the voltage of the battery 190, determine whether the engine 300 has started , and transmit an over-discharge signal to the control unit 130 when the voltage of the battery 190 is lower than a predetermined voltage value of 12.5 V. It is preferred that the control unit 130 control the current of the battery 190 until the voltage of the battery 190 reaches a value equal to or higher than a predetermined voltage value of 13 V when the over-discharge signal is input.
[56] Furthermore, the alarm unit 180 notifies a user about the need to add water and electrolytic fluid, and the discharge of the battery based on a battery over-discharge signal, which is transmitted from the battery voltage measurement unit 160 to the control unit 130, and the water-level detection signal, which is transmitted from the water-level sensor 152 to the control unit 130, using a visual means and an audible means.
[57] FIG. 4 is a flowchart schematically illustrating a method of conserving fuel using the hybrid fuel conservation system according to an embodiment of the present invention.
[58] Referring to FIG. 4, the method of conserving hybrid fuel using the hybrid fuel conservation system according to the embodiment of the present invention is described below in detail.
[59] First, the battery 190 is charged with current during the idle operation of the internal combustion engine 300. In this case, when the degree of opening of the throttle valve 112 is within a range of 0% to 5%, and the throttle position sensor 110 detects this and transfers a detection signal to the control unit 130, the control unit 130 becomes aware of the idling state of the engine.
[60] When receiving the idling signal through the throttle position sensor 110 during i dling of the engine 300, the control unit 130 cuts off current supplied to the device 150 for generating oxygen and hydrogen. The current is supplied to and stored in the battery 190 at step S201.
[61] Next, when the A/D conversion unit 120 converts an analog signal representing the degree of opening of the throttle valve 112 into a digital signal and transmits it to the control unit 130, the control unit 130 determines whether the rapid acceleration operation or high-speed operation of the engine 300 is occurring based on the detected signal using a predetermined program.
[62] In this case, the control unit 130 determines that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve 112, which is detected by the throttle position sensor 110, is within a range of 0% to 100%, d etermines that high-speed operation of the engine is occurring if the rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determines that normal operation of the engine is occurring if the degree of opening continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve 112 is within a range of 0% to 50%.
[63] Thereafter, the control unit 130 determines that the rapid acceleration operation of the engine 300 is occurring, and controls the current driver 140 in proportion to the amount of current stored in the battery 190, so that the current stored in the battery 190 is supplied to the device 150 for generating oxygen and hydrogen at step S203.
[64] When the water containing the electrolyte solution is electrolyzed in the device 150 for generating oxygen and hydrogen depending on the amount of current supplied to the current driver 140, air bubbles form on the surface of the stack 154 of the device 150 for generating oxygen and hydrogen.
[65] Next, oxygen ions and hydrogen ions generated from the electrolysis are affected by a magnetic field extending from the north pole of the magnetic body 153 to the south pole, thereby circulating around the magnetic body 153.
[66] Therefore, the water containing the electrolyte solution containing oxygen ions and hydrogen ions circulates around the magnetic body 153, and, therefore, the air bubbles on the surface of the stack 154 are readily removed at step S204.
[67] The oxygen and hydrogen gases generated by the device 150 for generating oxygen and hydrogen are supplied to the engine 300 through a supply path 155 and then the air filter 200 at step S205. [68] Furthermore, the water-level sensor 152 detects the level of the water containing the electrolyte solution in the device 150 for generating oxygen and hydrogen, and is installed on one side of the electrolytic cell 151 of the device 150 for generating oxygen and hydrogen so as to transmit a water-level detection signal to the control unit 130 when the level of the water containing the electrolyte solution is lower than a predetermined level.
[69] Furthermore, the water-level sensor 152, which is installed on one side of the inside of the device 150 for generating oxygen and hydrogen, detects the level of the water containing the electrolyte solution of the electrolytic cell 151 and transmit a water- level detection signal to the control unit 130 when the amount of water containing the electrolyte solution is below a predetermined level. The control unit 130 transmits the water-level detection signal to the alarm unit 180. The alarm unit 180 notifies a user about the need to add water and electrolytic fluid based on the water-level detection signal transmitted from the control unit 130 using a visual means and an audible means.
[70] When it is determined that the high-speed operation of the engine 130 is occurring at step S202, the control unit 130 cuts off the current being supplied to the device 150 for generating oxygen and hydrogen, and charges the battery 190 with the current at step S206.
[71] Whether the engine 300 has started is determined based on the voltage of the battery 190 measured by the battery voltage measurement unit 160, and the over- discharge signal is transmitted to the control unit 130 when the voltage of the battery 190 is lower than a predetermined voltage value of 12.5 V. The control unit 130 controls the voltage of the battery 190 until the voltage is higher than a predetermined voltage value of 13 V when the over-discharge signal is input. At the time of overcharging, the control unit 130 transmits the over-discharge signal to the alarm unit 180. The alarm unit 180 notifies the user of whether the battery is discharged by indicating the over-discharge signal using a visual means and an audible means.
[72] The present invention is not limited to the preferred embodiments, those skilled in the art can easily modify them without departing from the spirit of the invention as claimed in the accompanying claims, and such modifications are within a range as disclosed in the accompanying claims.
[73]

Claims

Claims
[1] A hybrid fuel conservation system, wherein: a battery is charged with current during an idle operation of an internal combustion engine, the current stored in the battery is supplied to a device for generating oxygen and hydrogen in order to promote complete combustion of fuel which is incompletely burned during a rapid acceleration operation of the engine, a device for generating oxygen and hydrogen generates oxygen and hydrogen by electrolyzing water containing an electrolyte solution, the generated oxygen and hydrogen are supplied to the internal combustion engine, current supplied to the device for generating oxygen and hydrogen is cut off during a high-speed operation of the engine, and the battery is charged with the current.
[2] The hybrid fuel conservation system as set forth in claim 1, comprising: a throttle position sensor for detecting a degree of opening of a throttle valve and transmitting a detected signal indicating the detected degree of opening to a control unit; a stack current measurement unit for measuring current stored in the battery and transmitting information about an amount of the current remaining in the battery to the control unit; an Analog/Digital (AD) conversion unit for converting the analog signal-type detection signal indicating the detected degree of opening, which is transmitted from the throttle position sensor, into a digital signal and transmitting the digital signal to the control unit; the control unit for cutting off current being supplied to the device for generating oxygen and hydrogen, charging the battery with the current during an idle operation of the engine, determining whether a rapid acceleration operation or high-speed operation of the engine is occurring based on the detection signal indicating the detected degree of opening transmitted from the throttle position sensor, delivering the current of the battery to a current driver depending on an amount of current stored in the battery during the rapid acceleration operation of the engine, and controlling the current driver so that the current driver cuts off the current supplied to the device for generating oxygen and hydrogen and charging the battery with the current during the high-speed operation of the engine; the current driver for regulating the current supplied to the device for generating oxygen and hydrogen depending on an amount of current stored in the battery during the rapid acceleration operation of the engine, and cutting off the current supplied to the device for generating oxygen and hydrogen during the high-speed operation of the engine; and the device for generating oxygen and hydrogen, in which amounts of oxygen and hydrogen, which are generated, are regulated in proportion to an amount of current supplied from the current driver, water containing the electrolyte solution circulated under influence of a magnetic field of a magnetic body, thereby removing air bubbles formed on a surface of a stack when the water containing the electrolyte solution is electrolyzed, and oxygen and hydrogen gases generated by electrolysis are supplied to an air filter to be supplied to the engine.
[3] The hybrid fuel conservation system as set forth in claim 2, further comprising: a battery voltage measurement unit for measuring voltage of the battery, determining whether the engine has started, transmitting an over-discharge signal to the control unit when the voltage of the battery is lower than a predetermined voltage value, and controlling the voltage of the battery until the voltage reaches a value equal to or higher than a predetermined voltage value when the over- discharge signal is input; and an alarm unit for providing a user with the over-discharge signal for the battery, which is transmitted from the battery voltage measurement unit to the control unit, and a water-level detection signal for the water containing the electrolyte solution, which is transmitted from a water-level sensor to the control unit, through visual and audible means.
[4] The hybrid fuel conservation system as set forth in claim 2, wherein the control unit determines that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of the throttle valve, which is detected by the throttle position sensor, is within a range of 0% to 100%, determines that high-speed operation of the engine is occurring if a rate of change of opening less than about 10% continues for more than 10 seconds when the detected degree of opening of the throttle valve 112 is within a range of 50% to 100%, and determines that normal operation of the engine is occurring if the degree of opening continues at less than about 10% for more than 5 seconds when the detected degree of opening of the throttle valve is within a range of 0% to 50%.
[5] The hybrid fuel conservation system as set forth in claim 2, wherein the device for generating oxygen and hydrogen comprises: an electrolytic cell comprising a space for accommodating the water containing the electrolyte solution; a magnetic body mounted in a center portion of the electrolytic cell, and configured to circulate the water containing the electrolyte solution using a magnetic field when the water containing the electrolyte solution is electrolyzed by supplied current, thereby removing air bubbles formed on the surface of a stack; the stack formed in a disk shape so as to be fitted around the magnetic body through a through hole formed above a center portion of the cell, and configured to act as positive and negative electrode plates for electrolyzing the water containing the electrolyte solution when current is supplied from the battery; the water-level sensor for detecting a level of the water containing the electrolyte solution accommodated in the electrolytic cell, and transmitting the water-level detection signal when the level of water containing the electrolyte solution is lower than a predetermined level; and a supply path for guiding the oxygen and hydrogen gases generated due to the electrolysis to an air filter to be supplied to the engine.
[6] The hybrid fuel conservation system as set forth in claim 5, wherein the magnetic body is mounted in the center portion of the electrolytic cell, and circulates oxygen ions and hydrogen ions generated by electrolysis using a magnetic field extending from a north pole to a south pole and, thus, circulates the water containing the electrolyte solution around the magnetic body, thereby removing the air bubbles formed on the surface of the stack.
[7] The hybrid fuel conservation system as set forth in claim 5, wherein the magnetic body is a permanent magnet.
[8] A fuel conservation method using a hybrid fuel conservation system, comprising the steps of:
(a) charging a battery with current during an idle operation of an internal combustion engine;
(b) electrolyzing water containing an electrolyte solution, which is accommodated in a device for generating oxygen and hydrogen, into oxygen and hydrogen using current, which is stored in the battery during the idle operation of the engine, in order to promote complete combustion of fuel which is incompletely burned during a rapid acceleration operation of the engine, and supplying the oxygen and hydrogen, to an air filter so as to be supplied to the internal combustion engine, air bubbles, which from on a surface of a stack during the electrolysis, being removed by circulating the water containing the electrolyte solution around a magnetic body under influence of magnetism of the magnetic body; and
(c) cutting off current supplied to the device for generating oxygen and hydrogen and charging the battery with the current during a high-speed operation of the engine.
[9] The fuel conservation method as set forth in claim 8, wherein the step (a) comprises the steps of:
(al) determining that an idle operation of the engine is occurring when a degree of opening of a throttle valve detected by a throttle position sensor is within a range of 0% to 5%; and
(a2) a control unit cutting off the current supplied to the device for generating oxygen and hydrogen and charging the battery with the current when it is determined that the idle operation of the engine is occurring at the step (al).
[10] The fuel conservation method as set forth in claim 8, wherein the step (b) comprises the steps of:
(bl) when a throttle position sensor detects a degree of opening of a throttle valve and transmits it to a control unit, determining whether the rapid acceleration operation of the engine is occurring using a program pre-installed in the control unit based on a detection signal indicating the degree of opening; (b2) if the control unit determines that the rapid acceleration operation of the engine is occurring, supplying current stored in the battery to the device for generating oxygen and hydrogen through a current driver depending on an amount of the current stored in the battery; and
(b3) electrolyzing the water containing the electrolyte solution in the device for generating oxygen and hydrogen depending on an amount of current supplied through the current driver, rapidly removing air bubbles which form on a surface of a stack during the electrolysis, and supplying the oxygen and hydrogen generated through the electrolysis to an air filter so as to be supplied to the engine.
[11] The fuel conservation method as set forth in claim 8, wherein the step (c) comprises the steps of:
(cl) when a throttle position engine detects a degree of opening of a throttle valve and transmits it to a control unit, determining whether the high-speed operation of the engine is occurring using a program pre-installed in the control unit based on a detection signal indicating the degree of opening; (c2) if the control unit determines that the high-speed operation of the engine is occurring, the control unit cutting off current being supplied to the device for generating oxygen and hydrogen; and (c3) charging the battery with the current.
[12] The fuel conservation method as set forth in claim 9, wherein the step (a2) comprises the steps of:
(a21) a battery voltage measurement unit measuring voltage of the battery which is applied to the control unit and determining whether a vehicle has started; (a22) if the measured voltage of the battery is discharged, controlling current of the battery being supplied to the control unit; and
(a23) an alarm unit indicating an over-discharge signal transmitted from the control unit using a visual means and an audible means.
[13] The fuel conservation method as set forth in claim 10, wherein the step (bl) comprises the step of determining that the rapid acceleration operation of the engine is occurring if the degree of opening changes by about more than 20% in less than 300 msec when the degree of opening of a throttle valve, which is detected by the throttle position sensor, is within a range of 0% to 100%.
[14] The fuel conservation method as set forth in claim 10, wherein the step (b3) comprises the steps of:
(b31) detecting a level of the water, containing the electrolyte solution, of the device of generating oxygen and hydrogen and, when the level of the water containing the electrolyte solution is lower than a predetermined level, transmitting a water-level detection signal from a water-level sensor to the control unit;
(b32) transmitting the water-level detection signal from the control unit to the alarm unit; and
(b33) the alarm unit indicating the water-level detection signal transmitted from the control unit using a visual means and an audible means.
[15] The fuel conservation method as set forth in claim 11, wherein the step (cl) comprises the step of determining that the high-speed operation of the engine is occurring if a rate of change of opening less than about 10% continues for more than 10 seconds when the degree of opening of a throttle valve detected by the throttle position sensor is within a range of 50% to 100%.
PCT/KR2006/002545 2006-06-22 2006-06-29 Fuel efficiency increasing hybrid system and the method thereof WO2007148843A1 (en)

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KR1020060056166A KR100725509B1 (en) 2006-06-22 2006-06-22 Hybrid device for reducing fuel
KR10-2006-0056166 2006-06-22

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WO2007148843A1 true WO2007148843A1 (en) 2007-12-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003204A (en) * 1974-04-01 1977-01-18 Bradley Curtis E Fuel regenerated non-polluting internal combustion engine
JPH05302549A (en) * 1992-04-27 1993-11-16 Aqueous Res:Kk Engine driving system
KR20010079220A (en) * 2001-06-23 2001-08-22 전경호 oxygen supply apparatus for internal combustion engine
KR20020095881A (en) * 2001-06-16 2002-12-28 임홍수 Gas generator use of an engine
KR20030005955A (en) * 2001-07-11 2003-01-23 소치재 An alternative fuel of vehicle and an apparatus for curtailing of fuel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003204A (en) * 1974-04-01 1977-01-18 Bradley Curtis E Fuel regenerated non-polluting internal combustion engine
JPH05302549A (en) * 1992-04-27 1993-11-16 Aqueous Res:Kk Engine driving system
KR20020095881A (en) * 2001-06-16 2002-12-28 임홍수 Gas generator use of an engine
KR20010079220A (en) * 2001-06-23 2001-08-22 전경호 oxygen supply apparatus for internal combustion engine
KR20030005955A (en) * 2001-07-11 2003-01-23 소치재 An alternative fuel of vehicle and an apparatus for curtailing of fuel

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