WO2023113388A1 - 유체가열히터의 구동 제어장치 및 이의 제어방법 - Google Patents
유체가열히터의 구동 제어장치 및 이의 제어방법 Download PDFInfo
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- WO2023113388A1 WO2023113388A1 PCT/KR2022/020037 KR2022020037W WO2023113388A1 WO 2023113388 A1 WO2023113388 A1 WO 2023113388A1 KR 2022020037 W KR2022020037 W KR 2022020037W WO 2023113388 A1 WO2023113388 A1 WO 2023113388A1
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- power supply
- switch
- supply unit
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- unit
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- 239000012530 fluid Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 199
- 238000010586 diagram Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0244—Heating of fluids
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0019—Circuit arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
Definitions
- the present invention relates to a drive control device for a fluid heating heater and a control method thereof, and more particularly, according to a voltage value supplied from a power supply unit, a connection configuration between a power supply unit and a first heating element and a second heating element is changed to limit peak current and maximum heater
- the present invention relates to a driving control device for a fluid heating heater capable of maximally increasing an applied voltage range and satisfying heater stability by satisfying a calorific value limit and an allowable maximum watt density, and a control method thereof.
- a motor driving wheels of an electric vehicle is driven by power supply from a battery.
- the performance of an electric vehicle battery is affected by various factors, but is particularly sensitive to temperature, so that the maximum current during charging and discharging of the battery varies depending on the temperature.
- the temperature of the battery varies depending on the chemical reaction inside the battery and the external environment of the battery, and the battery for an electric vehicle needs to maintain an optimal temperature and suppress temperature change for its efficiency.
- Japanese Patent Laid-open Publication No. 2011-016489 discloses a heat medium heating device capable of efficiently cooling the control board while miniaturizing the heat medium heating device and a vehicle using the same. An air conditioning system was initiated.
- the heat medium heating device disclosed in Prior Document 1 includes a flat plate PTC heater and a pair of heat medium circulation portions stacked on both sides of the PTC heater and in communication with each other, and one of the pair of heat medium circulation portions is laminated on both sides of the PTC heater.
- a substrate accommodating unit is integrally installed on one side surface, and a control board for controlling the PTC heater is provided in the substrate accommodating unit.
- Korean Patent Publication No. 10-2016-0082661 (hereinafter referred to as 'Prior Document 2') discloses an overheating prevention device for a battery heater capable of securing stability in a battery temperature control system of an electric vehicle.
- the device for preventing overheating of a battery heater disclosed in Prior Document 2 receives power from a heater unit for heating a heat exchange fluid that heats a battery, and receives heat from the heater unit and applies the heat to the heater unit when the temperature exceeds a predetermined value (Tf).
- a temperature responsive switch that cuts off the power
- a heat transfer member disposed between the heater unit and the temperature responsive switch, and transferring heat from the heater unit to the temperature responsive switch, and one surface of the heat transfer member on one surface of the temperature responsive switch
- a fixing member for fixing the elastic support it is configured to ensure stability.
- the durability and stability of the heating element may be reduced, resulting in a problem in that usability, such as a battery fire, is significantly deteriorated.
- the present invention has been made to solve the above problems, and the type of controlling a plurality of switching units according to the voltage value supplied from the power supply unit is subdivided into three switching modes, and between the power supply unit and the first heating element and the second heating element for each mode.
- a drive control device for a fluid heating heater capable of maximally increasing the supplyable voltage range and satisfying heater stability by not exceeding the limits of peak current, maximum heating value and maximum watt density by having different connection configurations and controlling the same Its purpose is to provide a method.
- the present invention has the following features in order to solve the above problems.
- the present invention is a power supply unit for supplying power; a plurality of heating elements receiving power from the power supply unit and heating the fluid; a switching unit including a plurality of switches connected between the power supply unit and the plurality of heating elements to regulate power; and a control unit controlling the plurality of switches and supplying power to the power supply unit, wherein the control unit connects a plurality of heating elements in series or parallel according to a predetermined switching mode based on a voltage value of the power supply unit, or The plurality of switches are controlled so that power is supplied only to at least one heating element selected from among the plurality of heating elements.
- the plurality of heating elements include a first heating element having one end connected to the positive electrode of the power supply unit and a second heating element having one end connected to the negative electrode of the power supply unit, and the switching unit connected between the other end of the first heating element and the negative electrode of the power supply unit.
- control unit turns on the first and second switches and turns off the third switch when the voltage value is between a low voltage lower threshold and a low voltage upper threshold.
- control unit turns on one of the first switch and the second switch and turns off the other switch and the third switch when the voltage value is between the low voltage upper threshold and the high voltage lower threshold.
- control unit turns off the first switch and the second switch and turns on the third switch when the voltage value is between the high voltage lower threshold and the high voltage upper threshold.
- control unit controls the power supply unit to stop power supply of the power supply unit when the voltage value is less than the low voltage lower threshold value, provides low voltage warning information, and provides power supply of the power supply unit when the voltage value is greater than the high voltage upper threshold value. It controls the power supply to stop supply and provides high voltage warning information.
- the present invention drives a fluid heating heater including a power supply unit supplying power, a plurality of heating elements, a switching unit including a plurality of switches connected between the power supply unit and the plurality of heating elements, and a control unit controlling the plurality of switches and the power supply unit.
- a control method of a control device wherein the control unit comprises: (a) measuring a voltage value of the power supply unit; (b) selecting a switching mode based on the measured voltage value; and (c) connecting the plurality of heating elements in series or parallel with a power source according to the selected switching mode or controlling a plurality of switches so that power is supplied only to at least one heating element selected from among the plurality of heating elements.
- the plurality of heating elements include a first heating element having one end connected to the positive electrode of the power supply unit and a second heating element having one end connected to the negative electrode of the power supply unit, and the switching unit connected between the other end of the first heating element and the negative electrode of the power supply unit.
- control unit selects the low voltage mode when the voltage value is between the low voltage lower threshold and the low voltage upper threshold, and selects the medium voltage mode when the voltage value is between the low voltage upper threshold and the high voltage lower threshold. and, if it is between the high voltage lower threshold and the high voltage upper threshold, the high voltage mode is selected.
- step (c) the control unit turns on the first switch and the second switch and turns off the third switch.
- step (c) the control unit turns on one of the first switch and the second switch and turns off the other switch and the third switch.
- step (c) when the switching mode is the medium voltage mode, the first switch and the second switch are turned off and the third switch is turned on.
- control unit controls the power supply unit to stop supplying power to the power supply unit, provides low voltage warning information, and determines that the voltage value is the high voltage upper threshold value. If it is greater than the power supply, the power supply unit is controlled to stop supplying power to the power unit, and high voltage warning information is provided.
- the heater it is possible to operate the heater within the maximum watt density by adjusting the peak current by changing the resistance of the entire heating element according to the supply voltage of the power supply unit, thereby improving the durability of the heater.
- FIG. 1 is a diagram schematically showing the configuration of a driving control device for a fluid heating heater according to an embodiment of the present invention.
- FIG. 2 is a diagram schematically showing a heating element according to an embodiment of the present invention.
- FIG. 3 is a diagram schematically showing a driving control circuit of a fluid heating heater according to an embodiment of the present invention.
- FIG. 4 is a diagram showing a circuit in a low voltage mode according to an embodiment of the present invention.
- FIG. 5 is a diagram illustrating a circuit in a medium voltage mode according to an embodiment of the present invention.
- FIG. 6 is a diagram illustrating a circuit in a high voltage mode according to an embodiment of the present invention.
- FIG. 7 is a diagram showing a comparison circuit 1 and a comparison circuit 2, which are driving control circuits of a conventional fluid heating heater.
- FIG. 8 is a diagram schematically showing configuration resistance according to an applied voltage range of a drive control circuit and comparison circuits 1 and 2 of a fluid heating heater according to an embodiment of the present invention.
- FIG. 9 is a diagram schematically illustrating a peak current according to an applied voltage range of a drive control circuit and comparison circuits 1 and 2 of a fluid heating heater according to an embodiment of the present invention.
- FIG. 10 is a diagram schematically showing the maximum heating amount of the heater according to the applied voltage range of the driving control circuit and comparison circuits 1 and 2 of the fluid heating heater according to an embodiment of the present invention.
- 11 is a diagram schematically showing the maximum watt density according to the applied voltage range of the drive control circuit and comparison circuits 1 and 2 of the fluid heating heater according to an embodiment of the present invention.
- FIG. 12 is a flow chart illustrating a process of a driving control method of a fluid heating heater according to an embodiment of the present invention.
- FIG. 13 is a flowchart illustrating a specific process of steps S200 and S300 in FIG. 12 as an example.
- FIG. 1 is a view schematically showing the configuration of a drive control device for a fluid heating heater according to an embodiment of the present invention
- FIG. 2 is a view schematically showing a heating element according to an embodiment of the present invention
- FIG. It is a diagram schematically showing a driving control circuit of a fluid heating heater according to an embodiment of the present invention
- FIGS. 4 to 6 are diagrams showing circuits for each switching mode according to an embodiment of the present invention.
- a driving control device for a fluid heating heater includes a power supply unit 100 for supplying power, and a plurality of units receiving power from the power supply unit 100 and supplying thermal energy to fluid.
- a switching unit 300 including a heating element 200 and a plurality of switches connected between the power supply unit 100 and the plurality of heating elements 200 to control power and controlling the plurality of switches and supplying power to the power supply unit It includes a control unit 400 that controls, and the control unit 400 connects the plurality of heating elements 200 in series or parallel according to a preset switching mode based on the voltage value (V dc ) of the power supply unit 100.
- a plurality of switches are controlled so that power is supplied only to at least one heating element selected from among the plurality of heating elements 200 .
- the power supply unit 100 supplies power to the plurality of heating elements 200 and is provided to generate heat in the heating elements 200.
- a power supply unit 100 may be provided with a separate power supply unit, preferably a battery It can be configured to receive power from
- the plurality of heating elements 200 are supplied with power through the power supply unit 100 and are provided to transfer heat to a fluid, which is a heating element accommodated around the heating element 200, such a plurality of heating elements 200 of the present invention It consists of a first heating element 210 and a second heating element 220 disposed spaced apart from each other according to an embodiment.
- the present invention is configured with the first heating element 210 and the second heating element 220, but may be configured with a third heating element or more as needed.
- the switching unit 300 is connected between the power supply unit 100 and the plurality of heating elements 200, that is, the first heating element 210 and the second heating element 220, so that power is supplied to the first heating element 210 and the second heating element 220. 2 It is provided to regulate the supply to the heating element 220, in one embodiment of the present invention, such a plurality of switching units 300 are connected between one end of the first heating element 210 and the cathode of the power supply unit 100 A first switch 310, a second switch 320 connected between one end of the first heating element 210 and one end of the second heating element 220, and the other end of the first heating element 210 and the second switch 320. A third switch 330 connected to one end of the second heating element 220 is included.
- the reason why the switching unit 300 is composed of three places is that the plurality of heating elements 200 described above are composed of two places. If the plurality of heating elements 200 are composed of three places, the switching unit 300 ) is preferably composed of 6 or more places.
- the controller 400 controls the first, second, and third switches 310, 320, and 330 to selectively supply power to the first heating element 210 and the second heating element 220.
- control unit 400 controls the switching unit 300 according to a preset switching mode based on the voltage value V dc of the power supply unit 100.
- the voltage value (V dc ) of the power supply unit 100 may be measured by including a measurement unit in the control unit 400, and may be configured to be transmitted to the control unit 400 through a separately provided voltage measuring means.
- the preset switching mode is largely classified into three modes, which include a low voltage mode, a medium voltage mode, and a high voltage mode.
- driving control is performed through two heating elements 200 and three switching units 300, and these three switching units 300 are controlled
- the control unit controls the switching unit 300 so that two heating elements 200 are connected to each other in series or parallel, or only one of them is connected to the power supply unit 100.
- connection configuration between the first and second heating elements 210 and 220 is different is to satisfy the heat generation amount and durability of the heating heater in response to the voltage value (V dc ) applied through the power supply unit 100.
- the control unit 400 controls the first, second, and third switches 310, 320, and 330 of the first heating element 210 and the second heating element 220 in three places.
- the connection configuration is performed in series connection, single heating element selection connection, and parallel connection according to the three switching modes, high voltage mode, medium voltage mode, and low voltage mode, respectively, to maintain a certain heating value and at the same time to secure durability of the heating element.
- the range of voltage that can be applied to the driving control circuit of the fluid heating heater according to an embodiment of the present invention can be wider, so that various power sources can be used.
- a voltage value (V dc ) is measured, and the measured voltage value is between a preset low voltage lower threshold value (V ref1 ) and a preset low voltage upper threshold value (V ref2 ).
- the controller 400 determines the switching mode as the low voltage mode, turns on the first switch 310 and the second switch 320 as shown in FIG. 4, and turns on the third switch 330. ) is turned off so that the first heating element 210 and the second heating element 220 are connected in parallel to the power supply unit 100.
- the first heating element 210 and the second heating element 220 are connected in parallel to each other, thereby minimizing a problem in which the amount of heat generated by lowering the peak current at low voltage is reduced.
- control unit 400 determines that the switching mode is a medium voltage mode when the voltage value (V dc ) is between a preset low voltage upper threshold value (V ref2 ) and a preset high voltage lower threshold value (V ref3 ), As shown in FIG. 5, by turning on one of the first switch 310 and the second switch 320 and turning off the other switch and the third switch, the first heating element 210 and Only one selected from among the second heating elements 220 is connected to the power supply unit 100 .
- the first switch 310 and the second switch 320 may be alternately intermittently controlled so that the first heating element 210 and the second heating element 220 are alternately connected to the power supply unit 100 according to settings.
- control unit 400 determines that the switching mode is a high voltage mode when the voltage value (V dc ) is between a preset high voltage lower threshold value (V ref3 ) and a preset high voltage upper threshold value (V ref4 ), and As in 6, the first switch 310 and the second switch 320 are turned off and the third switch 330 is turned on so that the first heating element 210 and the second heating element 220 are connected to the power unit ( 100) and connected in series.
- the controller 400 determines that the power supply of the power supply unit 100 is Controls the power supply unit 100 to be stopped.
- low voltage warning information or high voltage warning information may be generated as needed, and such low voltage warning information or high voltage warning information may be output through a separate output means.
- the output means may correspond to a display means for outputting warning data or a voice output means for outputting an alarm sound.
- FIG. 7 is a view showing comparison circuit 1 and comparison circuit 2, which are driving control circuits of a conventional fluid heating heater
- FIG. 8 is a driving control circuit of a fluid heating heater and application of comparison circuits 1 and 2 according to an embodiment of the present invention.
- Figure 9 is a diagram schematically showing the configuration resistance according to the voltage range
- Figure 9 is a view schematically showing the peak current according to the applied voltage range of the drive control circuit and comparison circuits 1 and 2 of the fluid heating heater according to an embodiment of the present invention am.
- FIG. 10 is a view schematically showing the maximum heating amount of the heater according to the applied voltage range of the driving control circuit and comparison circuits 1 and 2 of the fluid heating heater according to an embodiment of the present invention
- FIG. 11 is an embodiment of the present invention. It is a diagram schematically showing the maximum watt density according to the applied voltage range of the driving control circuit and comparison circuits 1 and 2 of the fluid heating heater according to FIG.
- the driving control circuit of the fluid heating heater according to an embodiment of the present invention, as shown in FIGS. 4 to 6, the first heating element 210 and the second heating element 220 are parallel or It is configured in the form of being connected in series or only one, and the drive control circuit of the existing fluid heating heater is typically composed of a comparison circuit 1 or a comparison circuit 2 as shown in FIG.
- comparison circuit 1 it corresponds to FIG. 5 (a) and is composed of one switching element 30, the first heating element 21, and the second heating element 22.
- b it is composed of a first switch 31, a second switch 32, a first heating element 21, and a second heating element 22.
- the two heating elements 21 and 22 are connected in parallel to each other so that they are stably driven in the low voltage mode, but the peak current increases in the medium voltage mode or the high voltage mode, and durability may deteriorate.
- two heating elements 21 and 22 are connected in parallel to each other according to the intermittent control of the first switch 31 and the second switch 32, or only one heating element is supplied with power.
- each heating element may be configured to receive power alternately.
- FIG. 8 shows the total resistance of the heating element in the comparison circuit 1 and comparison circuit 2 and the driving control circuit of the present invention.
- the connection configuration between the heating elements is different for each switching mode, The total resistance of increases step by step.
- comparison circuit 1 has a constant total resistance
- comparison circuit 2 has a two-step total resistance value.
- the driving control circuit of the present invention is configured to change the switching mode according to the voltage value so that it is always kept lower than the peak current limit value regardless of the voltage value, whereas in the comparator circuit 1, the voltage value is in the medium voltage mode. Or, in the case of high voltage mode, the peak current limit is exceeded.
- the peak current is kept lower than the peak current limit value as in the present invention, but it can be seen that the peak current is relatively higher than that of the present invention in the high voltage mode.
- the heat generation amount of the heating element exceeds the maximum heater heat generation limit in the case of the comparison circuit 2 in the high voltage mode, and the maximum watt density of FIG. 11 also exceeds the allowable maximum watt density limit.
- the present invention provides a stable heating operation for a relatively wide range of voltage values compared to the comparison circuit 1 and the comparison circuit 2 .
- FIG. 12 is a flow chart illustrating a process of a driving control method of a fluid heating heater according to an embodiment of the present invention.
- the voltage value (V dc ) is measured (S100)
- the control unit 400 is the measured voltage value (V dc )
- the controller 400 connecting the plurality of heating elements 200 with the power supply unit 100 in series or parallel according to the selected switching mode, or and controlling a plurality of switches so that power is supplied only to at least one selected heating element among the heating elements 200 (S300).
- the power supply unit 100, the plurality of heating elements 200, and the plurality of switches are the same as in the above-described drive control device for the fluid heating heater.
- the voltage value (V dc ) is measured (S100).
- This voltage value may be configured to be measured by a measuring unit provided in the control unit 400 or measured by a separate voltage measuring unit and transmitted to the control unit 400 .
- the controller 400 selects a preset switching mode according to the corresponding voltage value (V dc ) based on the measured voltage value (V dc ) (S200).
- this switching mode is a low voltage mode, It consists of medium voltage mode and high voltage mode.
- the voltage value (V dc ) received by the control unit 400 is between the preset low voltage lower threshold value (V ref1 ) and the low voltage upper threshold value (V ref2 ).
- the low voltage mode is selected
- the medium voltage mode is selected when the value is between the preset low voltage upper threshold (V ref2 ) and the high voltage lower threshold (V ref3 )
- the preset high voltage lower threshold (V ref3 ) and the high voltage upper threshold are selected. If it is between the threshold value (V ref4 ), the high voltage mode is selected.
- control unit 400 selects a switching mode
- on/off control of the switching unit 300 that is, the first switch 310, the second switch 320, and the third switch 330, is performed according to the selected switching mode.
- the controller 400 performs (S300).
- the control unit 400 turns on the first switch 310 and the second switch 320 when the switching mode is the low voltage mode, The third switch 330 is turned off so that the first heating element 210 and the second heating element 220 are connected to the power supply unit 100 in parallel.
- the control unit 400 turns on one of the first switch 310 and the second switch 320 and turns off the other switch and the third switch 330 to Only one selected from the first heating element 210 and the second heating element 220 is configured to be connected to the power supply unit 100 .
- the first switch 310 and the second switch 320 may be alternately controlled so that the first heating element 210 and the second heating element 220 are alternately connected to the power supply unit 100.
- the controller 400 turns off the first switch 310 and the second switch 320 and turns on the third switch 330 so that the first heating element 210 and the second switch 320 are turned on.
- the second heating element 220 is configured to be connected in series with the power supply unit 100.
- the control unit 400 controls the power unit 100 so that the power supply of the power unit 100 is stopped when the measured voltage value (V dc ) is smaller than the preset low voltage lower threshold value (V ref1 ) And, by providing low voltage warning information, it can be output to the outside through a separate output means.
- the output unit may correspond to a display unit outputting warning data or an audio output unit outputting an alarm sound.
- the controller 400 controls the power supply unit 100 to stop supplying power to the power unit 100 even when the voltage value (V dc ) is greater than the preset high voltage upper threshold value (V ref4 ), and high voltage warning Provide information so that it is output through an output means.
- FIG. 13 is a flowchart illustrating a specific process of steps S200 and S300 in FIG. 12 as an example.
- a step of selecting a switching mode (S200) and a step of controlling the switching unit 300 (S300) are exemplified in more detail below. let it do
- step S200 the control unit 400 determines whether the measured voltage value (V dc ) is greater than the high voltage upper threshold value (V ref4 ) (S210), and supplies the applied voltage of the power supply unit 100 if it is greater (S210) is stopped and high voltage warning information is provided (S310), and if it is small, it is determined whether the voltage value (V dc ) is smaller than the low voltage lower threshold value (V ref1 ) (S220).
- the voltage supply of the power supply unit 100 is stopped and low voltage warning information is provided (S320), and when the voltage value (V dc ) is large, It is determined whether it is equal to or greater than the high voltage lower threshold value (V ref3 ) and smaller than the high voltage upper threshold value (V ref4 ) (S230).
- the heating element 210 and the second heating element 220 are connected in series to each other (S330).
- the switching mode is set to the medium voltage mode. , and controls the switching unit 300 so that only one of the first heating element or the second heating element is connected to the power supply unit 100 .
- the voltage value (V dc ) is naturally equal to or greater than the low voltage lower threshold value (V ref1 ) and smaller than the low voltage upper threshold value (V ref2 ), so the switching mode is determined as the low voltage mode (S250), and the first The switching unit 300 is controlled so that the heating element 210 and the second heating element 220 are connected in parallel to each other (S350).
- step S200 The sequence of the process of selecting a specific switching mode in step S200 may be changed, but the subsequent process performed by the control unit 400 cannot be changed when the switching mode is determined to be the corresponding switching mode.
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Abstract
Description
Claims (13)
- 전원을 공급하는 전원부;상기 전원부로부터 전원을 공급받아 유체를 가열하는 복수의 발열체;상기 전원부와 복수의 발열체 사이에 연결되어 전원을 단속하는 복수의 스위치를 포함하는 스위칭부; 및상기 복수의 스위치를 제어하고 상기 전원부의 전원 공급을 제어하는 제어부;를 포함하고,상기 제어부는상기 전원부의 전압값에 기초하여 기설정된 스위칭 모드에 따라 복수의 발열체를 직렬 또는 병렬로 연결되도록 하거나 복수의 발열체 중 선택되는 적어도 하나의 발열체에만 전원이 공급되도록 상기 복수의 스위치를 제어하는 것을 특징으로 하는 유체가열히터의 구동 제어장치.
- 제1항에 있어서,상기 복수의 발열체는상기 전원부의 양극과 일단이 연결된 제1발열체 및상기 전원부의 음극과 일단이 연결된 제2발열체를 포함하고,상기 스위칭부는상기 제1발열체의 타단과 상기 전원부의 음극 간에 연결된 제1스위치와,상기 제2발열체의 타단과 상기 전원부의 양극 간에 연결된 제2스위치 및상기 제1발열체의 타단과 상기 제2발열체의 타단 간에 연결된 제3스위치를 포함하는 것을 특징으로 하는 유체가열히터의 구동 제어장치.
- 제2항에 있어서,상기 제어부는상기 전원의 전압값이 저전압 하위 임계값과 저전압 상위 임계값 사이인 경우 상기 제1스위치 및 제2스위치를 온시키고, 상기 제3스위치는 오프시키는 것을 특징으로 하는 유체가열히터의 구동 제어장치.
- 제2항에 있어서,상기 제어부는상기 전원의 전압값이 저전압 상위 임계값과 고전압 하위 임계값 사이인 경우 상기 제1스위치 및 제2스위치 중 어느 하나를 온시키고, 다른 하나 및 상기 제3스위치는 오프시키는 것을 특징으로 하는 유체가열히터의 구동 제어장치.
- 제2항에 있어서,상기 제어부는상기 전원의 전압값이 고전압 하위 임계값과 고전압 상위 임계값 사이인 경우 상기 제1스위치 및 제2스위치를 오프시키고, 상기 제3스위치는 온시키는 것을 특징으로 하는 유체가열히터의 구동 제어장치.
- 제2항에 있어서,상기 제어부는상기 전원의 전압값이 저전압 하위 임계값보다 작은 경우 상기 전원부의 전원 공급이 중지되도록 전원부를 제어하고, 저전압 경고정보를 제공하고,상기 전원의 전압값이 고전압 상위 임계값보다 큰 경우 상기 전원부의 전원 공급이 중지되도록 전원부를 제어하고, 고전압 경고정보를 제공하는 것을 특징으로 하는 유체가열히터의 구동 제어장치.
- 전원을 공급하는 전원부, 복수의 발열체와, 상기 전원부와 복수의 발열체 사이에 연결된 복수의 스위치를 포함하는 스위칭부 및 상기 복수의 스위치와 전원부를 제어하는 제어부를 포함하는 유체가열히터 구동 제어장치의 제어방법에 있어서,상기 제어부는,(a) 상기 전원부의 전압값을 측정하는 단계;(b) 상기 측정된 전압값에 기초하여 스위칭 모드를 선택하는 단계; 및(c) 상기 선택된 스위칭 모드에 따라 상기 복수의 발열체를 전원부와 직렬 또는 병렬로 연결하거나 복수의 발열체 중 선택되는 적어도 하나의 발열체에만 전원이 공급되도록 복수의 스위치를 제어하는 단계;를 포함하는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
- 제7항에 있어서,상기 복수의 발열체는상기 전원부의 양극과 일단이 연결된 제1발열체 및상기 전원부의 음극과 일단이 연결된 제2발열체를 포함하고,상기 스위칭부는상기 제1발열체의 타단과 상기 전원부의 음극 간에 연결된 제1스위치와,상기 제2발열체의 타단과 상기 전원부의 양극 간에 연결된 제2스위치 및상기 제1발열체의 타단과 상기 제2발열체의 타단 간에 연결된 제3스위치를 포함하는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
- 제8항에 있어서,상기 제어부는,상기 단계(b)에서 상기 전원의 전압값이 저전압 하위 임계값과 저전압 상위 임계값 사이인 경우 저전압 모드로 선택하고,저전압 상위 임계값과 고전압 하위 임계값 사이인 경우 중전압 모드로 선택하며,고전압 하위 임계값과 고전압 상위 임계값 사이인 경우 고전압 모드로 선택하는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
- 제9항에 있어서,상기 제어부는,상기 단계(c)에서 상기 스위칭 모드가 저전압 모드이면 상기 제1스위치 및 제2스위치를 온시키고, 상기 제3스위치는 오프시키는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
- 제9항에 있어서,상기 제어부는,상기 단계(c)에서 상기 스위칭 모드가 중전압 모드이면 상기 제1스위치 및 제2스위치 중 어느 하나를 온시키고, 다른 하나 및 상기 제3스위치는 오프시키는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
- 제9항에 있어서,상기 제어부는,상기 단계(c)에서 상기 스위칭 모드가 중전압 모드이면 상기 제1스위치 및 제2스위치를 오프시키고, 상기 제3스위치는 온시키는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
- 제9항에 있어서,상기 제어부는,상기 단계(b)에서 상기 전압값이 저전압 하위 임계값보다 작은 경우 상기 전원부의 전원 공급이 중지되도록 전원부를 제어하고, 저전압 경고정보를 제공하고,상기 전압값이 고전압 상위 임계값보다 큰 경우 상기 전원부의 전원 공급이 중지되도록 전원부를 제어하고, 고전압 경고정보를 제공하는 것을 특징으로 하는 유체가열히터 구동 제어장치의 제어방법.
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JP2021521593A (ja) * | 2018-04-13 | 2021-08-26 | ヒートワークス・テクノロジーズ,インコーポレイテッド | 有限要素制御を用いる流体ヒータ |
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KR20130130036A (ko) * | 2011-01-28 | 2013-11-29 | 베바스토 에스이 | 전기 히터, 전기 히터를 포함하는 차량 및 전기 히터를 제어하기 위한 방법 |
KR20190025002A (ko) * | 2016-07-07 | 2019-03-08 | 와틀로 일렉트릭 매뉴팩츄어링 컴파니 | 적응 제어를 위한 히터 번들과 전류 누설 저감 방법 |
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