WO2011122756A1 - 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치 및 방법 - Google Patents
고용량 커패시터를 이용한 차량 전기부하의 전력보상장치 및 방법 Download PDFInfo
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- WO2011122756A1 WO2011122756A1 PCT/KR2010/008755 KR2010008755W WO2011122756A1 WO 2011122756 A1 WO2011122756 A1 WO 2011122756A1 KR 2010008755 W KR2010008755 W KR 2010008755W WO 2011122756 A1 WO2011122756 A1 WO 2011122756A1
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- battery
- voltage
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- charge
- edlc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1446—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle in response to parameters of a vehicle
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- 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
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- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
Definitions
- the present invention relates to a power compensation device and method for electric load of a vehicle using a high-capacity capacitor, and more particularly, when the voltage output from the generator and the battery temporarily drops while driving a vehicle, the current charged in the high-capacity capacitor is quickly discharged to power Compensation for the high capacity capacitor is performed by the constant power pulse charging method to prevent the voltage unstable of the battery due to the overload of the generator generated during the charging, and the electric load of the vehicle when charging the high capacity capacitor When the voltage of the battery terminal is lowered, the charging of the high capacity capacitor is suspended and the charged current is discharged to compensate for the electric load of the vehicle, thereby to compensate for the unstable state of the power supply such as voltage drop in real time. Improved vehicle output and temporary deceleration
- the present invention relates to a power compensation device and method for electric vehicle electric load using a high-capacitance capacitor which greatly improves driving performance, improves fuel efficiency, and improves performance and lifespan of various electric drive parts.
- eco-driving has been improved by more than 15% through eco-driving that improved driving habits such as rapid acceleration, rapid start, rapid braking, and constant speed, but it is a more effective way of improving fuel efficiency because the individual difference is not only large but also its effectiveness is small. I will not be able to.
- the high-capacity capacitor is an electric double layer capacitor (EDLC), which has a small amount of energy that can be stored than a battery, but the ability to supply instantaneous peak power in a very short time is several hundred times greater than that of a battery.
- EDLC electric double layer capacitor
- the high-capacitance capacitor has a large capacitance of several thousand Fahrenheit to several Farads (F)
- F Farads
- A amperes
- the present invention was devised to solve the above problems, and an object of the present invention is to discharge the current charged in the high capacity capacitor quickly to compensate for the power when the voltage output from the generator and the battery temporarily drops while driving the vehicle.
- the charging of the high capacity capacitor is performed by the constant power pulse charging method to prevent the instability of the battery voltage due to the overload of the generator generated during charging, and the voltage of the battery terminal due to the electric load of the vehicle when the high capacity capacitor is charged. If this is lowered, the charging of the high capacity capacitor is suspended and the charged current is discharged to compensate for the electric load of the vehicle, thereby real-time power compensation of an unstable state of power supply such as a voltage drop, thereby improving the output of the vehicle. Prevents temporary deceleration and improves driving performance It is an object of the present invention to provide a power compensation device and method for electric vehicle electric load using a high capacity capacitor which greatly improves fuel efficiency and performance and lifespan of various electric drive parts.
- the present invention provides a power supply apparatus for a vehicle comprising a generator of the vehicle, a battery connected in parallel to the generator, and a vehicle electric load supplied with power from the generator and the battery.
- a first EDLC module connected to the battery in parallel to perform a charge / discharge operation and compensating for low capacity power
- a second EDLC module connected to the battery to perform a charge / discharge operation in parallel to compensating a high capacity of power
- a control unit for receiving the operating power from the generator and the battery and controlling the overall operation of the device, a battery voltage detector for detecting the voltage of the battery, and interposed between the second EDLC module and the ground to charge the second EDLC module.
- Charge and discharge connection switch unit for controlling the discharge operation intermittently, the constant power charging switch unit for controlling the constant power charging during the charging operation of the second EDLC module, EDLC module voltage for detecting the charging voltage of the second EDLC module It comprises a detector and a discharge detector for detecting the discharge operation of the second EDLC module,
- the controller may be configured to increase the current terminal voltage of the battery by a predetermined value or more than the previous terminal voltage while the voltage of the battery detected by the battery voltage detector is a normal reference voltage capable of charging the second EDLC module. Or a sudden drop below a predetermined value, the controller outputs a low signal to the charge / discharge connection switch unit and the constant power charge switch unit to disconnect the battery and the second EDLC module to temporarily shut off the charge / discharge operation;
- the controller When there is no potential difference between these values by comparing the voltage of the second EDLC module detected by the voltage and the EDLC voltage detection unit, the controller outputs a high signal to the charge / discharge connection switch unit and the constant power charge switch unit to output the battery and the second battery.
- the terminal voltage of the battery is a normal reference voltage capable of charging, and the current terminal voltage of the battery does not rise above a predetermined value than the previous terminal voltage and does not drop below a certain value or in the normal state of the charging standby mode.
- the controller when the terminal voltage of the battery is compared with the charging voltage of the second EDLC module detected through the EDLC voltage detector, and these values are determined to be constant voltage potentials, the controller outputs a low signal to the charge / discharge connection switch unit.
- the second EDLC module, and the constant power charging switch unit sequentially outputs a constant power charging mode for outputting a constant power pulse signal to charge the second EDLC module with a constant power proportional to the detected potential difference. It is characterized by performing.
- the present invention in the electric power compensation method of the vehicle electric load using a high capacity capacitor,
- a first process of the control unit detecting and storing the terminal voltage of the battery through the battery voltage detector, a second process of the control unit detecting and storing the charging voltage of the second EDLC module through the EDLC voltage detection unit, and the control unit of the temperature sensing unit A third step of detecting and storing the ambient temperature of the second EDLC module through the fourth step; and a fourth step of detecting, by the controller, whether the vehicle engine is running through the battery voltage detector;
- the controller determines whether the ambient temperature of the second EDLC module is equal to or less than an allowable temperature value, and if the ambient temperature of the second EDLC module is not equal to or less than an allowable temperature value in the fifth process, A sixth process of outputting an error indication to the display unit; and if the ambient temperature of the second EDLC module is less than an allowable temperature value in the fifth process, the controller may control the terminal voltage of the battery.
- step 9 In the seventh step of determining whether or not the normal reference voltage capable of performing the charging, and if the terminal voltage of the battery 20 in the seventh step is not the normal reference voltage capable of performing the charging, the control unit according to the display unit An eighth process of outputting an error indication, and a ninth process of determining whether the controller is currently in charge standby mode if the terminal voltage of the battery is a normal reference voltage capable of charging in the seventh process; In step 9, if the current charge standby mode is not present, the controller determines whether the current terminal voltage of the battery has risen by a predetermined value or more from the previous terminal voltage, and in step 10, the current terminal voltage of the battery is greater than the previous terminal voltage.
- the controller determines whether the current terminal voltage of the battery has dropped below a predetermined value than the previous terminal voltage. If the current terminal voltage of the battery rises by a predetermined value or more than the previous terminal voltage in the eleventh process and the tenth process, or the current terminal voltage of the battery drops by a predetermined value or less than the previous terminal voltage in the eleventh process, the controller A twelfth step of performing a charge standby mode to temporarily cut off the charge-discharge operation by disconnecting the battery and the second EDLC module by outputting a low signal to the charge-discharge connection switch unit and the electrostatic charge switch unit and the charge in the ninth If the current terminal voltage of the battery does not increase by a predetermined value or more than the previous terminal voltage in step 10 or the current terminal voltage of the battery does not drop below a predetermined value or less by the previous terminal voltage in step 11, the battery Compare the terminal voltage of and the charging voltage of the 2EDLC module to determine whether the potential difference between these values If the potential difference between
- a charge and discharge mode for performing a normal charge and discharge operation by connecting the battery and the second EDLC module by outputting a high signal, and charging the terminal voltage of the battery and the second EDLC module in the step 13; If the potential difference of the voltage is greater than or equal to a predetermined voltage, the controller outputs a low signal to the charge / discharge connection switch unit to disconnect the battery and the second EDLC module, and the constant power charge switch unit is a constant power proportional to the detected potential difference.
- the control After outputting a constant power pulse signal to charge the second EDLC module, if the potential difference between the battery and the second EDLC module disappears, the control And a fifteenth process of outputting a high signal to the charge / discharge connection switch unit and the constant power charge switch unit to perform a constant power charging mode to connect the battery and the second EDLC module to perform a normal charge / discharge operation. It is characterized by.
- the current charged in the high capacity capacitor is quickly discharged to compensate for power.
- the present invention performs the charging of the high-capacitance capacitor by the constant power pulse charging method to prevent the instability of the voltage of the battery due to the overload of the generator generated during charging.
- the present invention when the voltage of the battery terminal is lowered due to the electric load of the vehicle when the high capacity capacitor is charged, the present invention temporarily suspends the charging of the high capacity capacitor and discharges the charged current to compensate for the electric power of the vehicle electric load.
- the present invention provides a real-time power compensation for the unstable state of power supply such as voltage drop when driving a vehicle, improving the output of the vehicle and preventing temporary deceleration, improving driving performance as well as improving fuel efficiency and performance of various electric drive device components. It has the advantage of greatly improving the service life.
- FIG. 1 is a circuit diagram of a power compensation device for an electric load of a vehicle using a high capacitance capacitor according to the present invention
- FIG. 2 is a circuit diagram of an EDLC module according to the present invention.
- FIG. 3 is a detailed circuit diagram of the protection circuit of FIG. 2;
- Figure 4 is an output timing diagram of the main part of the power compensation device of the electric load of the vehicle using the high capacity capacitor of the present invention
- FIG. 5 is a flowchart of a power compensation method of an electric load of a vehicle using a high capacitance capacitor according to the present invention
- FIG. 6 is a flow chart of the precharge mode of FIG.
- FIG. 7 is a flowchart of the constant power charging mode of FIG. 5.
- FIG. 1 is a circuit diagram of a power compensator of a vehicle electric load using a high capacity capacitor according to the present invention.
- the power compensation device of the vehicle electric load using the high capacity capacitor of the present invention As shown, the power compensation device of the vehicle electric load using the high capacity capacitor of the present invention,
- Power of a vehicle including a generator 10 of the vehicle, a battery 20 connected in parallel to the generator 10, and a vehicle electric load 30 supplied with power from the generator 10 and the battery 20.
- a vehicle electric load 30 supplied with power from the generator 10 and the battery 20.
- a first EDLC module 40 connected in parallel with the battery 20 to perform a charge / discharge operation and compensating for a low capacity power, and a charge / discharge operation connected in parallel with the battery 20 to perform a charge / discharge operation.
- a charge / discharge connection switch unit 90 interposed between the module 50 and the ground to intermittently control the charge / discharge operation of the second EDLC module 50, and the constant power during the charging operation of the second EDLC module 50.
- a constant power charging switch unit 100 that is switched and controlled to be charged, and the second E EDLC module voltage detector 110 for detecting the charging voltage of the DLC module 50, a discharge detector 120 for detecting the discharge operation of the second EDLC module 50, and the second EDLC module 50 And a temperature sensing unit 130 for detecting the ambient temperature of the battery, a setting unit 140 having various function setting keys, and a display unit 150 for displaying various error displays, setting values, and the like.
- the first EDLC module 40 and the second EDLC module 50 are connected to an output terminal of the battery 20 via an overcurrent protection device PS1, a diode D0, a D1, and an MPP capacitor C1.
- the overcurrent protection device PS1 is a protection device that temporarily disconnects the circuit when overcurrent flows during charging and discharging of the first EDLC module 40 and the second EDLC module 50, and the diode D0.
- diode (D1) is a reverse voltage protection
- MPP capacitor (C1) is used for a high frequency filter.
- the first EDLC module 40 and the second EDLC module 50 are shown in FIG. 2,
- a plurality of high capacitance capacitors edlc 1 to edlc n are connected in series, and a protection circuit P is connected to each of the high capacitance capacitors edlc 1 to edlc n in parallel, and an electrolytic capacitor EC is connected to both ends of the EDLC module. to be.
- the protection circuit P is a circuit that protects the voltage charged in the high capacitance capacitor from exceeding its rating.
- the first EDLC module 40 and the second EDLC module 50 are charged with the voltages of the generator 10 and the battery 20, and perform a discharge operation during power compensation.
- the first EDLC module 40 having a low capacity is in charge
- the second EDLC module 50 having a high capacity is in charge of several ms to several seconds to perform its discharge function.
- the protection circuit P is connected such that the divided voltages of the comparator COM, the resistor R10 and the resistor R11 are input to the terminal + of the comparator COM as a comparison voltage.
- the divided voltages of the zener diode D8 and the resistor R12 are connected to the terminal (-) of the comparator COM as a reference voltage, and the output of the comparator COM is connected to the transistor R13 through a resistor R13.
- the collector terminal of the transistor Q3 is connected to one end (+) of the high capacitance capacitor edlc 1 through the resistor R14 and the resistor R15 and at the same time the base of the transistor Q4 It is connected to the base of the transistor Q5 via the resistor R16, and the collector terminal of the transistors Q4 and Q5 is connected to one end of the high capacitance capacitor edlc 1 through the discharge resistor R18.
- the emitter terminal of the transistor Q5 is configured to be connected to one end ( ⁇ ) of the high capacitance capacitor edlc 1.
- the resistor R17 is a balance resistor.
- the transistors Q4 and Q5 remain turned off by the turn-on of the transistor Q3, and the current of the high capacitance capacitor edlc 1 is collected through the resistors R15 and R14 and the collector of the transistor Q3 and It flows between emitters.
- the overvoltage above the rated voltage is prevented from being applied to the high capacity capacitors edlc 1 to edlc n to prevent burnout of the high capacity capacitor and increase its lifespan.
- the instantaneous voltage drop prevention unit 60 is configured to be connected to the output terminal of the battery 20 and includes a reverse current flow blocking diode (D2) (D3) and a charging capacitor (C6).
- the instantaneous voltage drop prevention unit 60 prevents the voltage charged in the capacitor C6 from flowing back into the battery 20 due to the instantaneous voltage drop of the battery 20 to drive the controller 70. To provide a stable voltage.
- the operation is such that the diodes D2 and D3 block the voltage charged in the capacitor C6 from flowing back to the battery 20 at the start of the vehicle.
- the battery voltage detector 80 includes a resistor R8 and a resistor R9, and detects a terminal voltage of the battery 20 and inputs it to the controller 70.
- the charge / discharge connection switch unit 90 is composed of a FET Q1.
- the FET Q1 is interposed between the one end (-) and the ground terminal of the second EDLC module 50 to turn on the FET Q1 when the second EDLC module 50 has completed charging or discharged. ON to allow the battery 20 and the second EDLC module 50 to form a closed circuit.
- the constant power charging switch unit 100 has a configuration in which a resistor R3 and a FET Q2 are connected in series.
- the resistor R3 and the FET Q2 are interposed between one side (-) of the second EDLC module 50 and the ground terminal to turn on the FET Q2 when the second EDLC module 50 is charged. (ON) the battery 20 and the second EDLC module 50 to form a closed circuit, and when charging, considering the potential difference between the voltage of the battery 20 and the charging voltage of the second EDLC module 50. 2
- the FET Q2 is driven by a constant power pulse switching method to ensure stable charging of the EDLC module 50.
- the constant power charging is performed such that the charging current decreases in proportion to a larger potential difference between the voltage of the battery 20 and the charging voltage of the second EDLC module 50. Pulse switching signal.
- the FET Q2 when the FET Q2 is turned on in response to the pulse switching signal, the current of the battery 20 flows to the second EDLC module 50 through the FET Q2 and the resistor R3 to the second EDLC module ( 50) is charged with constant power.
- an overcurrent protection device PS2 is interposed between the constant power charging switch unit 100 and the second EDLC module 50 to disconnect the line when the overcurrent flows through the second EDLC module 50. 2 to prevent the overload of the charging and the generator 10 of the EDLC module 50.
- the EDLC voltage detector 110 includes a resistor R4 and a resistor R5, and detects a voltage of the second EDLC module 50 and inputs it to the controller 70.
- the discharge detecting unit 120 is composed of a resistor (R6) (R7), diodes (D5 ⁇ D7), capacitor (C4), the control unit 70 by detecting a signal when the second EDLC module 50 is discharged Enter it as
- the discharge detecting unit 120 first, when the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 are not in the off state or the charge or discharge state is caused by the forward voltage of the diode D5. A 0.5 V signal is input to the control unit 70. However, when the charge / discharge connection switch unit 90 and the constant power charging switch unit 100 are in an off state or a charging operation (pulse switching signal) is performed through the constant power charging switch unit 100, the second EDLC is performed. When the module 50 is discharged, a voltage of 0.5 V or less is applied to the controller 70 while the cathode terminal of the diode D5 is applied with a negative voltage. At this time, the controller 70 recognizes that the second EDLC module 50 is being discharged.
- the diodes D6 and D7 are surge protection devices, and the capacitor C4 is a noise protection device.
- a diode D4 and a resistor R1 are interposed between the second EDLC module 50 and the ground terminal, respectively, wherein the diode D4 is large from the second EDLC module 50.
- a device for inducing current flow when discharging current, and the resistor (R1) is a small charge and discharge from the second EDLC module 50 when the charge and discharge connection switch unit 90 and the constant power charge switch unit 100 is off It is a device that induces a current to flow.
- Reference numeral capacitors C2 and C3 are noise removing elements.
- the control unit 70 is a device that embeds a predetermined program and controls the overall operation of the apparatus, and performs the following control of ⁇ charge standby mode>, ⁇ charge and discharge mode> and ⁇ static power charge mode>.
- the controller 70 may be configured such that the battery 20 has a normal reference voltage capable of charging the second EDLC module 50 by the voltage of the battery 20 detected through the battery voltage detector 80.
- the controller 70 may include a charge / discharge connection switch unit ( 90) and a low signal is output to the constant power charging switch unit 100 to turn off both the FET Q1 and the FET Q2, thereby disconnecting the battery 20 and the second EDLC module 50 to charge and discharge the battery. Perform a charge standby mode to temporarily block the.
- the charging standby mode separates the battery 20 and the second EDLC module 50 when the current voltage of the battery 20 rises by more than a predetermined value or drops below a predetermined value from the previous terminal voltage of the battery 20. It is to prevent the overload of the generator 10 by preventing the overcharge and discharge operation at a moment.
- the terminal voltage of the battery 20 refers to a normal reference voltage capable of charging, and refers to a state in which the voltage of the battery 20 is not overcharged or rated below the discharge end voltage. In other words, the battery 20 can be used normally.
- the previous terminal voltage of the battery 20 refers to the terminal voltage of the battery 20 stored before detecting the terminal voltage of the current battery 20, and the battery detected when the initial power is applied.
- the control unit 70 the terminal voltage of the battery 20 is a normal reference voltage capable of charging, the current terminal voltage of the battery 20 does not increase a predetermined value or more than the previous terminal voltage or less than a predetermined value In the normal state without sudden drop, the potential difference between these values is not equal to or greater than a predetermined voltage by comparing the terminal voltage of the battery 20 with the charging voltage of the second EDLC module 50 detected through the EDLC voltage detector 110.
- the control unit 70 outputs a high signal to the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 to turn on both the FET Q1 and the FET Q2, thereby allowing the battery 20 to be turned on.
- the second EDLC module 50 are connected to perform a charge / discharge mode for normal charging / discharging operation.
- control unit 70 the terminal voltage of the battery 20 is a normal reference voltage capable of charging
- the terminal voltage and the EDLC voltage of the battery 20 When comparing the charging voltage of the second EDLC module 50 detected by the detection unit 110 and the potential difference between these values is determined to be a predetermined voltage or more, the controller 70 sends a low signal to the charge / discharge connection switch unit 90. Outputs the FET Q1 to turn off the battery 20 and the second EDLC module 50, and the constant power charging switch unit 100 supplies the second power at a constant power proportional to the detected potential difference. In order to charge the EDLC module 50, a constant power pulse signal is output, thereby performing a constant power charging mode in which the FET Q2 is switched and driven.
- the controller 70 controls the charge / discharge connection switch unit 90 and the constant power charge switch unit ( By outputting a high signal to 100 and turning on both the FET Q1 and the FET Q2, the battery 20 and the second EDLC module 50 are connected to perform normal charge / discharge operation.
- the controller 70 detects a value input through the discharge detector 120, and when the operation of discharging the second EDLC module 50 is detected, the second EDLC module 50 is connected to the battery 20. Determined to be higher than the voltage), the control unit 70 outputs a high signal to the charge and discharge connection switch unit 90 and the constant power charging switch unit 100 to the FET (Q1) and FET (Q2) By turning on both, the battery 20 and the second EDLC module 50 is connected to allow a normal charging and discharging operation.
- FIG. 4 for example, a timing diagram according to a control method when the voltage of the battery 20 drops rapidly below a predetermined voltage is shown.
- the interval between the time points t0 to t1 is a normal state (charging completed) in which the terminal voltage V1 of the battery 20 and the charging voltage V2 of the second EDLC module 50 are the same, and the controller 70 charges and discharges the battery.
- a high signal is output to the connection switch unit 90 and the constant power charging switch unit 100 to keep the FET Q1 and the FET Q2 on.
- the battery 20 and the second EDLC module 50 form a closed circuit, and the voltage charged in the second EDLC module 50 may compensate for power at that time according to the voltage variation of the battery 20.
- the voltage charged in the second EDLC module 50 may compensate for power at that time according to the voltage variation of the battery 20.
- the controller 70 Outputs a low signal to the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 so that the FET Q1 and the FET Q2 are turned off. Therefore, the battery 20 and the second EDLC module 50 are disconnected to maintain the charging standby mode.
- the waveform diagram of FIG. 4 illustrates only a waveform in which the voltage of the battery 20 drops rapidly below the predetermined reference voltage, but the same control is performed even when the terminal voltage of the battery 20 rises above the predetermined voltage. Proceed to charging standby mode.
- the charging standby mode when the voltage of the battery 20 rises or falls rapidly due to environmental factors of a certain electric load 30, the charging operation of the second EDLC module 50 is temporarily interrupted, thereby overloading the generator 10. To prevent.
- the charging current of the second EDLC module 50 is discharged in a small amount through the discharge resistor R1.
- the charging voltage V2 of the second EDLC module 50 is quickly discharged to the battery 20, and the voltage of the battery 20 rises again at the time t4 due to the voltage provided by the generator 10.
- the controller 70 outputs a low signal to the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 to output the FET Q1.
- FET Q2 are turned off.
- the controller 100 charges the second EDLC module 50 again.
- the charging of the second EDLC module 50 is performed in the second EDLC module 50 in consideration of the voltage potential difference between the both ends of the battery 20 and the second EDLC module 50 as in the period t5 to t6.
- the constant power charging switch unit 100 is driven by a constant power pulse switching method to achieve a stable constant power charging.
- the control unit 70 outputs a low signal to the charge / discharge connection switch unit 90 so that the FET Q1 is The off state is maintained, and the charging current is proportionally increased as the potential difference between the terminal voltage V1 of the battery 20 and the charging voltage V2 of the second EDLC module 50 is increased.
- Outputs a pulse switching signal for constant power charging so that the second EDLC module 50 provides stable constant power charging instead of sudden charging.
- the control unit 70 controls the charge / discharge connection switch unit 90 and the constant power charging switch unit 100. Low outputs a high signal to turn on FET Q1 and FET Q2.
- FIG. 5 is a flowchart of a power compensation method of an electric load of a vehicle using a high capacitance capacitor according to the present invention.
- the first process (S10) in which the controller 70 detects and stores the terminal voltage of the battery 20 through the battery voltage detector 80, and the controller 70, through the EDLC voltage detector 110, the second EDLC module.
- a second process (S20) for detecting and storing the charging voltage of the (50) and the third control unit 70 detects and stores the ambient temperature of the second EDLC module 50 through the temperature sensing unit 130
- the controller 70 detects whether the vehicle engine is in operation through the battery voltage detector 80, and the vehicle engine operates in the fourth process S40.
- the controller 70 determines whether the ambient temperature of the second EDLC module 50 is equal to or less than an allowable temperature value, and the second EDLC module (S50) in the fifth process S50.
- the control unit 70 determines whether the terminal voltage of the battery 20 is a normal reference voltage capable of charging, and (S70). If the terminal voltage of the battery 20 is not a normal reference voltage capable of charging in the seventh step S70, the control unit 70 outputs an error indication to the display unit 150. S80 and the ninth process of determining whether the controller 70 is currently in charge standby mode if the terminal voltage of the battery 20 is a normal reference voltage capable of charging in the seventh process (S70).
- the controller 70 determines whether the current terminal voltage of the battery 20 has risen by a predetermined value or more from the previous terminal voltage (S100). ), And the current terminal voltage of the battery 20 in the tenth step (S100) If the controller 70 does not rise above the predetermined value, the controller 70 determines whether the current terminal voltage of the battery 20 drops or falls below the predetermined terminal voltage by a predetermined value (S110), and the tenth process (S100).
- control unit 70 If the current terminal voltage of the battery 20 is increased by a predetermined value or more than the previous terminal voltage in step 11, or if the current terminal voltage of the battery 20 drops below a predetermined value than the previous terminal voltage in the eleventh step (S110) the control unit 70 outputs a low signal to the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 to disconnect the battery 20 and the second EDLC module 50 to temporarily block the charge / discharge operation.
- the eleventh process (S1) If the current terminal voltage of the battery 20 has not dropped below a predetermined value than the previous terminal voltage in 10), the potential difference between these values is determined by comparing the terminal voltage of the battery 20 with the charging voltage of the second EDLC module 50.
- the controller 70 determines whether Charge and discharge to output a high signal to the charge and discharge connection switch unit 90 and the constant power charge switch unit 100 to connect the battery 20 and the second EDLC module 50 to perform a normal charge and discharge operation If the potential difference between the terminal voltage of the battery 20 and the charging voltage of the second EDLC module 50 is greater than or equal to a predetermined voltage in the fourteenth step S140 and the thirteenth step S130, the control unit 70 performs a mode. ) Outputs a low signal to the charge / discharge connection switch unit 90 to form a batter.
- the constant power charging switch unit 100 is charged to charge the second EDLC module 50 at a constant power proportional to the detected potential difference.
- the control unit 70 is the charge-discharge connection switch unit 90 and the constant power charging switch unit 100
- a fifteenth step (S150) of performing a constant power charging mode to output a high signal to connect the battery 20 and the second EDLC module 50 to perform a normal charging and discharging operation.
- the fourth process (S40), if the vehicle engine is not in operation, further includes a sixteenth process (S160) to proceed to the precharge mode.
- the terminal voltage of the battery 20 which is not started first is about 2.1 V ⁇ the number of cells.
- the start is started, there is a voltage instability time such as voltage drop at the start of the start, but the start is started and the generator 10 is driven so that the charge voltage of the battery 20 is increased by about 2.1 V x 7-15% of the number of cells. do.
- About 0.9-2V is supplied by the generator 10.
- This difference in voltage can be detected to indicate whether the engine is currently running or before starting.
- the controller 70 determines whether the terminal voltage of the battery 20 is a normal reference voltage capable of charging (S161), and the terminal voltage of the battery 20 is charged in the step (S161). If it is not the normal reference voltage capable of performing the step of outputting an error indication according to the display unit 150 (S162), and in the step (S161) the terminal voltage of the battery 20 is normal to perform charging If it is a reference voltage, comparing the terminal voltage of the battery 20 and the charging voltage of the second EDLC module 50 to determine whether the potential difference between these values is above a certain voltage (S163), and in the step (S163) If the potential difference between the terminal voltage of the battery 20 and the charging voltage of the second EDLC module 50 is not greater than or equal to a predetermined voltage, the controller 70 is connected to the charge / discharge connection switch unit 90 and the constant power charging switch unit 100.
- the control unit 70 outputs a low signal to the charge / discharge connection switch unit 90 to turn off the FET Q1 (S151), and the control unit 70 to the electrostatic charge switch unit 100. Switching driving the FET Q2 by outputting a constant power pulse signal to charge the second EDLC module 50 with a constant power proportional to the potential difference between the voltage of the battery 20 and the second EDLC module 50 ( In step S152, the control unit 70 determines whether the second EDLC module 50 is being discharged through the discharge detecting unit 120 (S153), and in step S153, the second EDLC module.
- step (S154) determines whether the second EDLC module 50 is complete charging, the second EDLC module 50 in the step (S153) is discharged, or If the charging is completed in the second EDLC module 50 in step S154, the controller 70 controls the charge / discharge connection switch unit 90 and the constant power charging switch unit 100. And outputting a low signal to connect the battery 20 and the second EDLC module 50 (S155).
- the applied power is supplied to the first EDLC module 40 and the first through the overcurrent protection device PS1, the diodes D0, D1 and the MPP capacitor C1. 2 is applied to the EDLC module 50, and at the same time, the driving voltage is applied to the controller 70 via the instantaneous voltage drop prevention unit 60 and the regulator REG1.
- the controller 70 detects and stores the terminal voltage of the battery 20 through the battery voltage detector 80 (S10).
- the charging voltage of the second EDLC module 50 is detected through the EDLC voltage detecting unit 110 (S20).
- the charging voltage of the second EDLC module 50 is a voltage input through the battery voltage detecting unit 80.
- the charging voltage of the second EDLC module 50 is detected and stored by the difference between the two voltages using the value input through the EDLC voltage detector 110.
- the temperature sensor 130 detects and stores the ambient temperature of the second EDLC module 50.
- the controller 70 determines whether the vehicle engine is currently running through the terminal voltage of the battery 20 detected by the battery voltage detector 80. In other words, it is determined before and after the engine start. (S40)
- the second EDLC module 50 determines whether the ambient temperature of the second EDLC module 50 detected by the temperature sensing unit 130 is equal to or less than an allowable temperature value. If the ambient temperature is not less than the allowable temperature, it is determined that the normal charging and discharging operation is difficult, the control unit 70 outputs the error display according to the display unit 150 and stops the operation of the device (S50). (S60)
- the controller 70 determines whether the terminal voltage of the battery 20 is a normal reference voltage capable of charging. )
- the terminal voltage of the battery 20 refers to a normal reference voltage capable of charging, and refers to a state in which the voltage of the battery 20 is not overcharged to the rated voltage or not lower than the discharge end voltage.
- the control unit 70 outputs an error indication according to the display unit 150. Then, the operation of the device is stopped (S80).
- the controller 70 determines whether the current charging standby mode.
- the control unit 70 detects whether the current terminal voltage of the battery 20 rises by a predetermined value or more or decreases by a predetermined voltage value or lower than the previous terminal voltage.
- the controller 70 outputs a low signal to the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 when the current terminal voltage of the controller rises by a predetermined value or more than the predetermined terminal voltage. Then, the battery 20 and the second EDLC module 50 are disconnected to perform the charge standby mode to temporarily block the charge / discharge operation. (S100 to S120)
- the terminal voltage and the second EDLC module 50 of the battery 20 are not in the charging standby mode, or the current terminal voltage of the battery 20 does not increase by a predetermined value or more or less than the predetermined terminal voltage. (A), it is determined whether a potential difference between these values is generated by comparing the charging voltages of (S130).
- the controller 70 controls the charge / discharge connection switch unit 90 and the constant power charging switch unit 100. Outputs a high signal.
- the FET Q1 and the FET Q2 are turned on to perform the charge / discharge mode for connecting the battery 20 and the second EDLC module 50 to perform normal charge / discharge operation.
- the controller 70 outputs a low signal to the charge / discharge connection switch unit 90.
- the battery 20 and the second EDLC module 50 are disconnected by turning off the FET Q1, and the second EDLC module has constant power proportional to the detected potential difference. Outputs a constant power pulse signal to charge 50.
- the FET Q2 is turned on and off by the constant power pulse switching signal, so that the second EDLC module 50 starts charging, and then the charging voltage of the second EDLC module 50 and the terminal of the battery 20 are applied.
- the controller 70 outputs a high signal to both the charge / discharge connection switch unit 90 and the constant power charge switch unit 100 so that the battery 20 and the second EDLC module 50 are connected to each other. Allow normal charge and discharge operation.
- the precharge mode is an operation for precharging the voltage in the battery 20 with the second EDLC module 50 before starting the vehicle engine.
- the controller 70 determines whether the terminal voltage of the battery 20 is a normal reference voltage capable of charging (S161).
- the controller 70 If the terminal voltage of the battery 20 is not a normal reference voltage capable of charging, it is determined that the normal charging and discharging operation is difficult, and the controller 70 outputs an error indication according to the display unit 150. And stop the operation of the device (S162).
- the second terminal input through the battery 20 terminal voltage and the EDLC voltage detector 110 inputted through the battery voltage detector 80.
- the potential difference of the charging voltage of the EDLC module 50 is compared (S163).
- the controller 70 may include the charge / discharge connection switch unit 90 and the constant power charging switch unit ( The low signal is output to 100 to block the battery 20 and the second EDLC module 50 to maintain the standby state.
- the controller 70 outputs a low signal to the charge / discharge connection switch unit 90 to display the battery ( 20) and the second EDLC module 50 are disconnected, and the constant power charging switch unit 100 uses the constant power pulse to charge the second EDLC module 50 with a constant power proportional to the detected potential difference.
- the controller 70 passes through the charge / discharge connection switch unit 90 and the constant power charge switch unit 100. The low signal is output to block the battery 20 and the second EDLC module 50 to maintain the standby state.
- the pre-charge is performed in advance, so that it is possible to perform the power compensation of the battery very quickly when the vehicle is running.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims (14)
- 차량의 발전기(10)와, 상기 발전기(10)에 병렬 연결되는 배터리(20)와, 상기 발전기(10) 및 배터리(20)로부터 전원을 공급받는 차량 전기부하(30)를 포함하는 차량의 전력공급장치에 있어서,상기 배터리(20)에 병렬 연결되어 충방전 동작을 수행하며 저용량의 전력을 보상하는 제1 EDLC모듈(40)과, 상기 배터리(20)에 병렬 연결되어 충방전 동작을 수행하되, 고용량의 전력을 보상하는 제2 EDLC모듈(50)과, 상기 발전기(10) 및 배터리(20)로부터 동작 전원을 공급받고 본 장치의 전체동작을 제어하는 제어부(70)와, 상기 배터리(20)의 전압을 검출하는 배터리 전압검출부(80)와, 상기 제2 EDLC모듈(50)과 접지 사이에 개재되어 상기 제2 EDLC모듈(50)의 충방전 동작을 단속 제어하는 충방전 연결 스위치부(90)와, 상기 제2 EDLC모듈(50)의 충전 동작시 정 전력 충전이 되도록 제어하는 정전력 충전스위치부(100)와, 상기 제2 EDLC모듈(50)의 충전 전압을 검출하는 EDLC모듈 전압검출부(110)와, 상기 제2 EDLC모듈(50)의 방전동작을 검출하는 방전감지부(120)를 포함하여 구성되며,상기 제어부(70)는, 상기 배터리 전압검출부(80)를 통해서 검출된 상기 배터리(20)의 전압이 제2 EDLC모듈(50)로 충전을 수행할 수 있는 정상 기준 전압인 상태에서, 상기 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정값 이상 상승하였거나 일정값 이하 급강하한 경우, 상기 제어부(70)는 충방전 연결스위치부(90)와 정전력 충전스위치부(100)로 로우신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 단선시켜 충방전 동작을 임시 차단하는 충전대기모드와,상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압이고, 상기 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정값 이상 상승하지 않고 일정값 이하 급강하 하지 않은 정상 상태의 경우에는, 상기 배터리(20)의 단자전압과 EDLC 전압검출부(110)를 통해 검출된 제2EDLC모듈(50)의 충전전압을 비교하여 이 값들의 전위차가 없으면, 상기 제어부(70)는 상기 충방전 연결스위치부(90) 및 정전력 충전스위치부(100)로 하이신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 연결시켜 정상적인 충방전 동작이 이루어지도록 하는 충방전 모드와,상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압이고, 상기 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정값 이상 상승하지 않고 일정값 이하 급강하 하지 않은 정상 상태의 경우이거나 상기 충전대기 모드인 경우에는, 상기 배터리(20)의 단자전압과 EDLC 전압검출부(110)를 통해 검출된 제2EDLC모듈(50)의 충전전압을 비교하여 이 값들이 일정 전압 전위차가 발생되면, 상기 제어부(70)는 상기 충방전 연결스위치부(90)로 로우신호를 출력하여 배터리(20)와 제2 EDLC모듈(50)을 단선시켜주고, 상기 정전력 충전스위치부(100)로는 상기 검출된 전위차에 비례하는 정전력으로 상기 제2 EDLC모듈(50)을 충전하기 위하여 정전력 펄스신호를 출력하는 정전력 충전모드를 순차적으로 수행하는 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 제1 EDLC모듈(40) 및 제2 EDLC모듈(50)은, 복수개의 고용량 커패시터(edlc 1~edlc n)가 직렬 연결되고, 상기 고용량 커패시터(edlc 1~edlc n)에는 보호회로(P)가 각각 병렬 연결되고, 상기 고용량 커패시터(edlc 1~edlc n)의 양단에 전해콘덴서(EC)가 연결된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 2 항에 있어서,상기 보호회로(P)는 비교기(COM)와, 저항(R10) 및 저항(R11)의 분압 전압이 비교전압으로 상기 비교기(COM)의 단자(+)에 입력되도록 연결되고, 제너다이오드(D8) 및 저항(R12)의 분압전압이 기준전압으로 상기 비교기(COM)의 단자(-)에 입력되도록 연결되며, 상기 비교기(COM)의 출력이 저항(R13)을 거쳐 트랜지스터(Q3)의 베이스에 접속되고, 상기 트랜지스터(Q3)의 컬렉터단이 저항(R14) 및 저항(R15)을 통해 고용량 커패시터(edlc 1)의 일단(+)에 연결됨과 동시에 트랜지스터(Q4)의 베이스와 저항(R16)을 거쳐 트랜지스터(Q5)의 베이스에 접속되며, 상기 트랜지스터(Q4)(Q5)의 컬렉터단이 방전저항(R18)을 통해 고용량 커패시터(edlc 1)의 일단(+)에 연결됨과 동시에 트랜지스터(Q5)의 에미터단이 고용량 커패시터(edlc 1)의 일단(-)에 연결되도록 구성한 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 배터리(20)의 공급전원 단과 제어부(70) 사이에는 다이오드(D2)(D3) 및 커패시터(C6)로 이루어진 순간전압 강하 방지부(60)가 더 구성되는 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 충방전 연결스위치부(90)는 FET(Q1)로 구성된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 정전력 충전스위치부(100)는 저항(R3)과 FET(Q2)가 직렬연결로 구성된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 방전감지부(120)는 저항(R6~R7), 다이오드(D5~D7), 커패시터(C4)로 구성된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 제어부(70)에는 제2 EDLC모듈(50)의 주변 온도를 검출하는 온도감지부(130)와, 각종 기능 설정키를 구비한 설정부(140)와, 각종 에러표시나 설정 값 등을 표시하는 표시부(150)가 더 연결되는 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 배터리(20)와 제1EDLC모듈(40) 사이에는 과전류보호소자(PS1)가 더 연결된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 제2 EDLC모듈(50)과 접지단 사이에는 다이오드(D4)와 저항(R1)이 각각 개재되어, 제2 EDLC모듈(50)로부터 큰 전류의 방전 시나 작은 충방전전류가 흐르도록 유도하는 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 제 1 항에 있어서,상기 정전력 충전스위치부(100)와 제2 EDLC모듈(50) 사이에는 과전류보호소자(PS2)가 개재된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치.
- 차량의 발전기(10)와, 배터리(20)와, 차량 전기부하(30)와, 제1 EDLC모듈(40)과, 제2 EDLC모듈(50)과, 제어부(70)와, 배터리 전압검출부(80)와, 충방전 연결 스위치부(90)와, 정전력 충전스위치부(100)와, EDLC모듈 전압검출부(110)와, 방전감지부(120)와, 온도감지부(130)와, 설정부(140)와, 표시부(150)를 포함하여 이루어진 고용량 커패시터를 이용한 차량 전기부하의 전력보상장치에 적용되는 전력보상방법에 있어서,상기 제어부(70)가 배터리 전압검출부(80)를 통해 배터리(20)의 단자전압을 검출 및 저장하는 제1과정(S10)과, 제어부(70)가 EDLC 전압검출부(110)를 통해 제2 EDLC모듈(50)의 충전전압을 검출 및 저장하는 제2과정(S20)과, 제어부(70)가 온도감지부(130)를 통해 상기 제2 EDLC모듈(50)의 주변 온도를 검출 및 저장하는 제3과정(S30)과, 제어부(70)가 상기 배터리 전압검출부(80)를 통해 차량 엔진이 가동 중인지의 여부를 검출하는 제4과정(S40)과, 상기 제4과정(S40)에서 차량 엔진이 가동 중이라면, 제어부(70)가 상기 제2 EDLC모듈(50)의 주변 온도가 허용 온도값 이하인가를 판단하는 제5과정(S50)과, 상기 제5과정(S50)에서 상기 제2 EDLC모듈(50)의 주변 온도가 허용 온도값 이하가 아니라면 제어부(70)가 표시부(150)로 이에 따른 에러표시를 출력하는 제6과정(S60)과, 상기 제5과정(S50)에서 상기 제2 EDLC모듈(50)의 주변 온도가 허용 온도 값 이하이면 제어부(70)가 상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압인가를 판단하는 제7과정(S70)과, 상기 제7과정(S70)에서 상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압이 아니라면 제어부(70)가 표시부(150)로 이에 따른 에러표시를 출력하는 제8과정(S80)과, 상기 제7과정(S70)에서 상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압이라면, 상기 제어부(70)가 현재 충전대기모드인가를 판단하는 제9과정(S90)과, 상기 제9과정(S90)에서 현재 충전대기모드가 아니라면 상기 제어부(70)가 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이상 상승하였는가를 판단하는 제10과정(S100)과, 상기 제10과정(S100)에서 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이상 상승하지 않았다면 상기 제어부(70)가 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이하 급하강하였는가를 판단하는 제11과정(S110)과, 상기 제10과정(S100)에서 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이상 상승하였거나, 상기 제11과정(S110)에서 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이하 급하강하였다면 상기 제어부(70)는 상기 충방전 연결스위치부(90)와 정전력 충전스위치부(100)로 로우신호를 출력하여 배터리(20)와 제2 EDLC모듈(50)을 단선시켜 충방전 동작을 임시 차단하는 충전대기모드를 수행하는 제12과정(S120)과, 상기 제9과정(S90)에서 충전대기모드이거나, 상기 제10과정(S100)에서 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이상 상승하지 않았고, 상기 제11과정(S110)에서 배터리(20)의 현재 단자전압이 이전 단자전압 보다 일정 값 이하 급하강하지 않았다면 상기 배터리(20)의 단자전압과 제2EDLC모듈(50)의 충전전압을 비교하여 전위차가 일정 전압 이상인가를 판단하는 제13과정(S130)과, 상기 제13과정(S130)에서 상기 배터리(20)의 단자전압과 제2EDLC모듈(50)의 충전전압의 전위차가 발생하지 않았다면, 상기 제어부(70)는 상기 충방전 연결스위치부(90) 및 정전력 충전스위치부(100)로 하이신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 연결하여 정상적인 충방전 동작이 이루어지도록 하는 충방전 모드를 수행하는 제14과정(S140)과, 상기 제13과정(S130)에서 상기 배터리(20)의 단자전압과 제2EDLC모듈(50)의 충전전압의 전위차가 일정 전압 이상이면, 상기 제어부(70)는 상기 충방전 연결스위치부(90)로 로우신호를 출력하여 배터리(20)와 제2 EDLC모듈(50)을 단선시켜주고, 상기 정전력 충전스위치부(100)로는 상기 검출된 전위차에 비례하는 정전력으로 상기 제2 EDLC모듈(50)을 충전하기 위하여 정전력 펄스신호를 출력한 후, 상기 배터리(20)와 제2 EDLC모듈(50)의 사이의 전위차가 없어지면 상기 제어부(70)는 상기 충방전 연결스위치부(90) 및 정전력 충전스위치부(100)로 하이신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 연결하여 정상적인 충방전 동작이 이루어지도록 하여주는 정 전력 충전모드를 수행하는 제15과정(S150)을 포함하여 된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상방법.
- 제 12 항에 있어서,상기 제4과정(S40)에는, 차량 엔진이 가동 중이 아니라면 예비충전모드로 진행하는 제16과정(S160)을 더 포함하며,상기 예비충전모드는,상기 제어부(70)가 상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압인가를 판단하는 단계(S161)와, 상기 단계(S161)에서 상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압이 아니라면 이에 따른 에러표시를 표시부(150)로 출력하는 단계(S162)와, 상기 단계(S161)에서 상기 배터리(20)의 단자전압이 충전을 수행할 수 있는 정상 기준 전압이라면, 상기 배터리(20)의 단자전압과 제2EDLC모듈(50)의 충전전압을 비교하여 이 값들의 전위차가 일정 전압 이상인가를 판단하는 단계(S163)와, 상기 단계(S163)에서 상기 배터리(20)의 단자전압과 제2EDLC모듈(50)의 충전전압의 전위차가 일정 전압 이상이 아니라면 상기 제어부(70)는 상기 충방전 연결스위치부(90) 및 정전력 충전스위치부(100)로 로우신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 차단하여 주는 단계(S164)와, 상기 단계(S163)에서 상기 배터리(20)의 단자전압과 제2EDLC모듈(50)의 충전전압의 전위차가 일정 전압 이상이라면 상기 제어부(70)는 상기 충방전 연결스위치부(90)로 로우신호를 출력하여 배터리(20)와 제2 EDLC모듈(50)을 단선시켜주고, 상기 정전력 충전스위치부(100)로는 상기 검출된 전위차에 비례하는 정전력으로 상기 제2 EDLC모듈(50)을 충전하기 위하여 정전력 펄스신호를 출력한 후, 상기 배터리(20)와 제2 EDLC모듈(50)의 사이의 전위차가 없어지면 상기 제어부(70)는 상기 충방전 연결스위치부(90) 및 정전력 충전스위치부(100)로 로우신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 차단하여 주는 단계(S165)로 구성된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상방법.
- 제 12 항에 있어서,상기 제15과정(S150)인 정전력 충전모드는,상기 제어부(70)가 상기 충방전 연결스위치부(90)로 로우신호를 출력하여 FET(Q1)을 오프하는 단계(S151)와, 상기 제어부(70)가 상기 정전력 충전스위치부(100)로 배터리(20)와 제2 EDLC모듈(50) 전압의 전위차에 비례하는 정전력으로 상기 제2 EDLC모듈(50)을 충전하기 위하여 정전력 펄스신호를 출력하여 FET(Q2)를 스위칭 구동하는 단계(S152)와, 상기 제어부(70)가 방전감지부(120)를 통해 상기 제2 EDLC모듈(50)이 방전중인가를 판단하는 단계(S153)와, 상기 단계(S153)에서 상기 제2 EDLC모듈(50)이 방전중이 아니라면 상기 제2 EDLC모듈(50)에 충전이 완료되었는가를 판단하는 단계(S154)와, 상기 단계(S153)에서 상기 제2 EDLC모듈(50)이 방전중이거나, 상기 단계(S154)에서 상기 제2 EDLC모듈(50)에 충전이 완료되었다면 제어부(70)가 상기 충방전 연결스위치부(90) 및 정전력 충전스위치부(100)로 하이신호를 출력하여 상기 배터리(20)와 제2 EDLC모듈(50)을 연결하여 주는 단계(S155)로 구성된 것을 특징으로 하는 고용량 커패시터를 이용한 차량 전기부하의 전력보상방법.
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BR112012024847A BR112012024847A2 (pt) | 2010-04-01 | 2010-12-08 | Aparelho e método para compensar a potência de um dispositivo de alimentação de energia de um veículo. |
US13/637,746 US9184621B2 (en) | 2010-04-01 | 2010-12-08 | Apparatus and method for compensating power of power supply device in vehicle using high-capacitance capacitor |
AU2010350279A AU2010350279B2 (en) | 2010-04-01 | 2010-12-08 | Device and method for compensating for the power of an electric load of a vehicle using a high-capacity capacitor |
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EP10849078.0A EP2555373A4 (en) | 2010-04-01 | 2010-12-08 | DEVICE AND METHOD FOR COMPENSATING THE POWER OF AN ELECTRICAL LOAD OF A VEHICLE USING A HIGH CAPACITOR CAPACITOR |
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RU40264U1 (ru) * | 2004-05-05 | 2004-09-10 | Открытое акционерное общество "Авиационная электроника и коммуникационные системы" | Комбинированная система питания транспортного средства |
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- 2010-04-01 KR KR1020100030095A patent/KR100973142B1/ko active IP Right Grant
- 2010-12-08 US US13/637,746 patent/US9184621B2/en not_active Expired - Fee Related
- 2010-12-08 RU RU2012137171/07A patent/RU2521589C1/ru not_active IP Right Cessation
- 2010-12-08 BR BR112012024847A patent/BR112012024847A2/pt not_active IP Right Cessation
- 2010-12-08 WO PCT/KR2010/008755 patent/WO2011122756A1/ko active Application Filing
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Also Published As
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US9184621B2 (en) | 2015-11-10 |
RU2012137171A (ru) | 2014-05-20 |
CA2794476A1 (en) | 2011-10-06 |
CN102918743A (zh) | 2013-02-06 |
EP2555373A4 (en) | 2015-10-14 |
CA2794476C (en) | 2016-02-16 |
AU2010350279A1 (en) | 2012-10-25 |
EP2555373A1 (en) | 2013-02-06 |
AU2010350279B2 (en) | 2014-06-12 |
RU2521589C1 (ru) | 2014-06-27 |
KR100973142B1 (ko) | 2010-07-29 |
BR112012024847A2 (pt) | 2017-10-03 |
CN102918743B (zh) | 2015-01-14 |
JP2013521757A (ja) | 2013-06-10 |
JP5463604B2 (ja) | 2014-04-09 |
US20130015701A1 (en) | 2013-01-17 |
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