KR20210136539A - Control Method of Cooling System For Refrigeration Tower Vehicle - Google Patents

Abstract

According to an embodiment of the present disclosure, a method of controlling a freezing system of a refrigerator truck includes: a step (S101) in which a battery module (210) supplies power; a step (S102) in which a voltage sensing unit (332) senses a voltage of the battery module (210); a step (S103) in which a MICOM module (310) determines whether the sensed voltage is no less than a preset first setting voltage; a step (S104a) in which when the sensed voltage is no less than the first setting voltage, the MICOM module (310) controls a switch module (320) such that a first cooling module, a second cooling module and a third cooling module are operated together; a step (S108) in which a current sensing unit (331) senses a current flowing in the driven cooling modules; a step (S109) in which the MICOM module (310) determines whether the sensed current is less than a preset setting current; and a step (S110) in which when the sensed current is less than the setting current, the MICOM module (310) controls the switch module (320) such that a cooling module, in which the current less than the setting current flows, is not driven. Therefore, the present invention is capable of efficiently using a freezing system while protecting a battery.

Description

{Control Method of Cooling System For Refrigeration Tower Vehicle}

The present specification relates to a method for controlling a refrigeration system for a refrigeration tower vehicle, and more particularly, to a method for controlling a refrigeration system for a refrigeration tower vehicle having multiple cooling cycles of a battery-powered type.

In general, a refrigeration tower vehicle equipped with a refrigerator is configured to maintain the quality or freshness of the cargo by freezing the cargo by the refrigerator while loading and transporting cargoes requiring refrigeration and refrigeration in the freezing tower constituting the freezing tower vehicle.

The cooling device configured in such a refrigeration tower vehicle includes a compressor for compressing a refrigerant, a condenser for condensing the refrigerant compressed in the compressor and converting it into a liquid, and a low-temperature and low-pressure refrigerant converted into a liquid by the condenser to absorb surrounding heat. and an evaporator for evaporating the refrigerant to absorb and cool the inside of the refrigeration tower of the cooling tower car.

As disclosed in Korean Patent Application Laid-Open No. 2005-0087005, the conventional cooling device connects the compressor directly to the engine to drive it using the power of the engine. This prior art is shown in FIG. 1 .

As the compressor is driven, the refrigerant in a high-temperature and low-pressure state reaches the condenser and becomes a medium-temperature and high-pressure state. Therefore, cold air is formed around the evaporator, so the cold air is discharged into the inside of the storage by a separate exhaust fan. As a result, it is possible to safely transport all food and beverages and low-temperature storage items that require freezing and refrigeration at an optimal temperature.

However, in the case of using the cooling cycle as described above, since the engine and the compressor are directly connected, even if the driver parks the refrigeration tower vehicle and leaves the seat for a while, the engine has to be turned on continuously, so energy is wasted, and soot from idling Increasing, there is a problem that the engine is overworked and the theft of a refrigeration tower vehicle that is started is a concern.

US 1020050087005 A US 200288717 Y1 US 101917750 B1 US 100816642 B1 US 1020010016277 A

The control method of a refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure is created to improve the conventional problems as described above, and is driven using a separate battery power source or household commercial voltage without directly connecting the engine and the compressor. An object of the present invention is to provide a method for controlling a refrigeration system for a refrigeration tower vehicle including a possible compressor.

A method for controlling a refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure for solving the above problems,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101); Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332; Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103); when the sensed voltage is equal to or greater than the first set voltage, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together (S104a); Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331); determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

When the voltage sensed by the voltage sensing unit 332 is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b); When the sensed voltage is equal to or greater than the second set voltage, the microcontroller module 310 operates the switch module ( 320) controlling the step (S105a); Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331); determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

When the voltage sensed by the voltage sensing unit 332 is less than the second set voltage, determining whether the detected voltage is greater than or equal to a preset third set voltage in the microcomputer module 310 (S105b); When the sensed voltage is greater than or equal to the third set voltage, the switch module ( 320) controlling the step (S106a); Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331); determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110). can be configured.

In addition,

When the voltage sensed by the voltage sensing unit 332 is less than the third set voltage, determining whether power is supplied by the commercial power connection module 220 in the microcomputer module 310 (S106b); When power is supplied by the commercial power connection module 220, the microcomputer module 310 so that the first cooling module 110, the second cooling module 120, and the third cooling module 130 are driven together. ) controlling the switch module 320 in (S107a); a step of detecting a current flowing in the cooling module driven by the current sensing unit 331 (S109); Determining whether the detected current is less than a preset current in the microcomputer module 310 (S110); and when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S111); It may be configured as comprising a.

In addition,

When power is not supplied by the commercial power connection module 220, the microcomputer so that any one of the first cooling module 110, the second cooling module 120, and the third cooling module 130 is not driven. controlling the switch module 320 in the module 310 (S107b); It may be configured as comprising a.

In addition,

Between the step S105a and the step S108,

determining whether power is supplied from the microcomputer module 310 by the commercial power connection module 220; when power is supplied by the commercial power connection module 220, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together; It may be configured as characterized in that it further comprises.

In addition,

Between the step S106a and the step S108,

determining whether power is supplied from the microcomputer module 310 by the commercial power connection module 220; when power is supplied by the commercial power connection module 220, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together; It may be configured as characterized in that it further comprises.

In addition,

The first set voltage may be configured as set to 23V.

In addition,

The second set voltage may be configured as being set to 22V.

In addition,

The third set voltage may be configured as set to 21V.

Accordingly, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

By controlling the cooling unit according to the battery voltage, there is an advantage in that the battery is protected and the refrigeration system can be efficiently used.

In addition, there is an advantage in that the system can be efficiently protected by detecting the current flowing in the cooling module and preventing it from being selectively driven when there is an abnormality.

In addition, there is an advantage that the refrigeration system can be operated using the household 220V AC power.

1 is a conceptual diagram schematically showing a cooling device according to the prior art;
2 is a conceptual diagram schematically showing a refrigeration system for a refrigeration tower vehicle according to the present disclosure;
3 is a configuration diagram for explaining a refrigeration system for a refrigeration tower vehicle according to the present disclosure;
4 is a block diagram schematically showing the configuration of a cooling unit and a power supply unit according to the present disclosure;
5 is a block diagram schematically showing the configuration of a control unit and a sensing module according to the present disclosure;
6 is a view for specifically explaining the control unit according to the present disclosure;
7 is a flowchart illustrating a control method of a refrigeration system for a refrigeration tower vehicle according to the present disclosure;
8 to 12 are flowcharts for specifically explaining a control method of a refrigeration system for a refrigeration tower vehicle according to the present disclosure.

Hereinafter, the technical spirit of the present invention will be described with reference to the drawings, but this is for easier understanding, and the scope of the present invention is not limited thereto, and the present invention is only defined by the scope of the claims.

In describing the embodiment of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted, and the same reference numerals refer to the same components throughout the specification. refers to the element.

1 is a conceptual diagram schematically showing a cooling apparatus according to the prior art, FIG. 2 is a conceptual diagram schematically showing a refrigeration system for a refrigeration tower vehicle according to the present disclosure, and FIG. 3 is a configuration for explaining a refrigeration system for a refrigeration tower vehicle according to the present disclosure 4 is a block diagram schematically illustrating the configuration of a cooling unit and a power supply unit according to the present disclosure, FIG. 5 is a block diagram schematically illustrating the configuration of a control unit and a sensing module according to the present disclosure, and FIG. A diagram for explaining the control unit in detail, FIG. 7 is a flowchart illustrating a control method of a refrigeration system for a refrigeration tower vehicle according to the present disclosure, and FIGS. 8 to 12 are a control method of a refrigeration system for a refrigeration tower vehicle according to the present disclosure. This is a flow chart for

<Refrigeration system for refrigeration tower vehicle according to an embodiment of the present disclosure>

2 to 5 , the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure may include a cooling unit 100 , a power supply unit 200 , and a control unit 300 .

The cooling unit 100 is provided in the refrigerating tower car to cool the inside of the refrigerating tower. Referring to FIG. 4A , the first cooling module 110 , the second cooling module 120 and the third cooling module 130 may be included.

The cooling module 110, 120, 130 includes a compressor (not shown) that compresses and circulates refrigerant gas, a condenser (not shown) that condenses the refrigerant gas compressed in the compressor, and a liquid refrigerant condensed in the condenser. It may be configured to include an expansion valve (not shown) for throttling expansion, an evaporator (not shown) for cooling the inside of the refrigeration tower by vaporizing the refrigerant throttled by the expansion valve, wherein the compressor is a DC compressor that can be driven by a 24V battery for a vehicle. It is preferable to use, but is not limited thereto.

The first cooling module 110 , the second cooling module 120 , and the third cooling module 130 may be configured to be independently driven and selectively driven, thereby depending on the type of cargo in the refrigeration tower and the surrounding conditions. There is an advantage that energy can be used efficiently.

On the other hand, the cooling unit 100 may further include a sterilization module 140, the sterilization module 140 is connected to the evaporator of the cooling module (110, 120, 130) is cooled air into the inside of the freezing tower. It may be configured to be sterilized prior to orientation. The sterilization module 140 preferably uses an ultraviolet sterilization method, but is not limited thereto, and may be configured in various sterilization methods (ion sterilization method, etc.).

In addition, the cooling unit 100 may further include a communication module (not shown) capable of sending and receiving data, and the cooling unit 100 is configured to be monitored through a smartphone or a server through the communication module. may be

The power supply unit 200 is for supplying power for driving to the cooling unit 100. Referring to FIG. 4 (b), a battery module 210, a commercial power connection module 220 and a relay module ( 230) may be included.

The battery module 210 may be configured to be connected to an engine provided in a refrigeration tower vehicle and be charged by an alternator of the engine to supply power to the cooling unit 100 .

The commercial power connection module 220 may be configured to supply power for driving to the cooling unit 100 by converting household commercial power separately from the battery module 210 . In addition, the commercial power connection module 220 may be configured to charge the battery module 210 separately from supplying power to the cooling unit 100 . To this end, the commercial power connection module 220 may include an AC/DC converter.

The relay module 230 is for a power switching function, and specifically, it may be configured to supply power to the cooling unit 100 by any one of the battery module 210 and the commercial power connection module 220 . have. It is preferable to use an electromagnetic relay as the relay module 230, but the present invention is not limited thereto, and may be configured in various ways (eg, semiconductor relay, etc.) as needed.

Meanwhile, the power supply unit 200 may further include an auxiliary charging module (not shown), and the auxiliary charging module may be configured to charge the battery module 210 separately from the alternator of the refrigeration vehicle engine. This auxiliary charging module may be configured to include an optical charging unit for charging the battery module 210 using sunlight. To this end, a solar panel unit (not shown) may be installed at a predetermined position outside the refrigeration tower vehicle, and an incident angle detection unit (not shown) for detecting an incident angle of sunlight incident on the solar panel unit, and the sunlight It may be configured to include a solar support unit (not shown) that receives a predetermined signal to support the panel unit and adjusts the angle of the solar panel.

Accordingly, there is an advantage that the charging efficiency can be increased by adjusting the incident angle incident on the solar panel unit by moving the solar panel unit according to the passage of time.

The control unit 300 is connected to the power supply unit 200 to control the cooling unit 100 . Referring to FIG. 5A , the power supplied to the cooling modules 110 , 120 , 130 . may be configured to include a switch module 320 for selectively turning on/off the switch module 320, a microcomputer module 310 for controlling the switch module 320, and a communication module (not shown) capable of sending and receiving data, FIG. is a diagram showing an embodiment of a circuit diagram configuration of the control unit 300 .

Meanwhile, the control unit 300 may further include a detection module 330 , and the detection module 330 detects and transmits various data for controlling the cooling unit 100 to the microcomputer module 310 . can be configured.

The sensing module 330 may include a current sensing unit 331 and a voltage sensing unit 332 as shown in FIG. 5B , and the current sensing unit 331 is the cooling unit 100 . ) to detect the current flowing in the cooling modules 110, 120, 130 of a current sensor 331a, an amplifier 331b for amplifying a signal, and an A/D converter 331c for converting an analog signal into a digital signal. may be included. In addition, the voltage sensing unit 332 is for detecting the voltage of the battery module 210, and includes a voltage sensor 332a, an amplifier 332b for amplifying a signal, and an A/D converter for converting an analog signal into a digital signal. (332c) may be included.

Hereinafter, the microcomputer module 310 will be described in connection with the current sensing unit 331 and the voltage sensing unit 332 with reference to FIG. 7 .

When power is supplied to the cooling unit 100 by the battery module 210 , the microcomputer module 310 is interlocked with the voltage sensing unit 332 and based on the voltage value data of the battery module 210 . When the detected voltage value is equal to or greater than the first set voltage, the switch module 320 is controlled so that the first cooling module 110 , the second cooling module 120 , and the third cooling module 130 are driven together. do.

On the other hand, the microcomputer module 310 is based on the current value data flowing through each cooling module 110, 120, 130 driven in conjunction with the current sensing unit 331, each cooling module (110, 120, 130) ), it is possible to determine whether the abnormal operation of the switch The module 320 is controlled, but when the current is less than the set current, it is determined as an abnormal operation and the switch module 320 is controlled so as not to be driven.

On the other hand, it may be configured to place a test point (TP) at a point where each failure is expected for abnormal operation, and to determine whether an abnormal operation is performed by collecting information sensed from each test point.

In addition, it may be configured to further include a separate deep learning module (not shown) in relation to abnormal operation, and such a deep learning module receives a large number of input data generated from multiple parts of mechanical equipment that require abnormal operation. Failure by category for parts of mechanical equipment that require abnormal operation by learning and analyzing the input unit (not shown) and the feature map from which the features of the input data are extracted and the abnormal operation information for a number of parts of the mechanical equipment in advance It may be composed of an autoencoder unit (not shown) that outputs the degree of confidence.

The autoencoder unit converts a plurality of input data transferred from the input unit into a feature map. In this case, the feature map is a matrix obtained by extracting features of the input data, and is a matrix composed of a convolution calculated by a filter circulating the input data. It has fewer nodes than the input data, but restores the original value. It can be configured to be

In addition, the autoencoder unit may be configured to find out and output the feature map and the abnormal operation diagnostic information in advance to find and output a well-achieved abnormality confidence level from the feature map.

The autoencoder unit includes an input layer stage (not shown) in which the input data transferred from the input unit is converted into an input layer, and at least three or less hidden layers in which the input layer is encoded and compressed into a hidden layer having a feature map. It may include a stage (not shown) and an output layer stage (not shown) in which the hidden layer is decoded and reconstructed as an output layer.

Specifically, the auto-encoder unit can express the input data as a hidden layer having a low-dimensionally encoded feature map using the hidden layer, and expand the feature map in more various ways using the output layer. It can be expressed as a decoded output layer. On the other hand, the autoencoder unit may be configured to be controlled such that the root mean square deviation between the input layer and the output layer is minimized.

In addition, it goes without saying that a Hardware-In-The-Loop Simulation (HILS) system may be used in connection with the abnormal operation determination. The operating state, compressor and temperature control state are detected through the operation simulation of the on-board refrigeration system in virtual reality based on the HILS system, and the operating state is performed through the operation simulation of the on-board refrigeration system derived based on the detected data. , by controlling the compressor and temperature control state, it can be configured to test the after-treatment device and the like.

The basic operating concept of such a HILS system is to store various data of the ideal refrigeration system, compare and analyze this stored data with the data of the actual operating system. It is to find out the abnormal operation by intensively checking the part where there is a difference and re-analyzing it. Examples of such data may be configured to include operation status, compressor and temperature control status, power failure or not, and errors in measurement values depending on temperature.

In addition, the microcomputer module 310 is interlocked with the voltage detection unit 332, and when the voltage value detected based on the voltage value data of the battery module 210 is equal to or greater than the second set voltage and less than the first set voltage, the The switch module 320 is controlled so that only any two of the first cooling module 110 , the second cooling module 120 , and the third cooling module 130 are driven.

After that, the microcomputer module 310 can determine whether power is supplied by the commercial power connection module 220 , and when power is supplied by the commercial power connection module 220 , the first cooling The switch module 320 is controlled so that the module 110, the second cooling module 120, and the third cooling module 130 are driven together.

On the other hand, the microcomputer module 310 is based on the current value data flowing through each cooling module 110, 120, 130 driven in conjunction with the current sensing unit 331, each cooling module (110, 120, 130) ), it is possible to determine whether the abnormal operation of the switch The module 320 is controlled, but when the current is less than the set current, it is determined as an abnormal operation and the switch module 320 is controlled so as not to be driven.

In addition, the microcontroller module 310 is interlocked with the voltage detection unit 332, and when the voltage value detected based on the voltage value data of the battery module 210 is greater than or equal to the third set voltage and less than the second set voltage, the The switch module 320 is controlled so that only one of the first cooling module 110 , the second cooling module 120 , and the third cooling module 130 is driven.

After that, the microcomputer module 310 can determine whether power is supplied by the commercial power connection module 220 , and when power is supplied by the commercial power connection module 220 , the first cooling The switch module 320 is controlled so that the module 110, the second cooling module 120, and the third cooling module 130 are driven together.

On the other hand, the microcomputer module 310 is based on the current value data flowing through each cooling module 110, 120, 130 driven in conjunction with the current sensing unit 331, each cooling module (110, 120, 130) ), it is possible to determine whether the abnormal operation of the switch The module 320 is controlled, but when the current is less than the set current, it is determined as an abnormal operation and the switch module 320 is controlled so as not to be driven.

In addition, the microcomputer module 310 is interlocked with the voltage detection unit 332, and when the detected voltage value based on the voltage value data of the battery module 210 is less than the third set voltage, the first cooling module ( 110), the second cooling module 120, and the third cooling module 130 are controlled to control the switch module 320 so that neither one is driven.

After that, the microcomputer module 310 may determine whether power is supplied by the commercial power connection module 220 , and power is supplied to the cooling unit 100 by the commercial power connection module 220 . In this case, the switch module 320 is controlled so that the first cooling module 110 , the second cooling module 120 , and the third cooling module 130 are driven together.

On the other hand, the microcomputer module 310 is based on the current value data flowing through each cooling module 110, 120, 130 driven in conjunction with the current sensing unit 331, each cooling module (110, 120, 130) ), it is possible to determine whether the abnormal operation of the switch The module 320 is controlled, but when the current is less than the set current, it is determined as an abnormal operation and the switch module 320 is controlled so as not to be driven.

The detection module 330 may further include a temperature detection unit 333 for sensing the temperature inside and outside the freezing tower, and the microcomputer module 310 is interlocked with the temperature detection unit 333 and the It may be configured to control the cooling unit 100 . The microcontroller module 310 may have in advance data on the power consumption of the cooling unit 100 consumed until the inside of the freezing tower reaches a set temperature within a predetermined cooling time according to the temperature outside and inside the freezing tower. And based on this, it may be configured to control the cooling unit 100 so that the power consumption of the cooling unit 100 is minimized.

In addition, the detection module 330 may further include a humidity detection unit 334 for detecting the humidity inside and outside the freezing tower, and the microcomputer module 310 is interlocked with the humidity detection unit 334. It may be configured to control the cooling unit 100 .

In addition, the detection module 330 further includes a location detection unit (not shown) that detects the location of the freezing tower using GPS or a Beacon and a corruption detection unit (not illustrated) that detects corruption of cargo inside the freezing tower. It may be provided, and the microcomputer module 310 may be configured to be monitored by transmitting data to a smart phone or a server by interworking with the location detecting unit and the corruption detecting unit.

In addition, the microcontroller module 310 receives data on the remaining charge amount of the battery module 210, and the switch module 320 so that the cooling modules 110, 120, 130 are selectively driven based on the charge amount. ) can be controlled.

On the other hand, the refrigeration system for a refrigeration tower vehicle according to the present disclosure may further include a monitoring unit (not shown) that is connected to the cooling unit 100 , the power supply unit 200 and the control unit 300 to monitor, , such a monitoring unit may be implemented as a computer that can access a remote server or terminal through a network, where the computer may include, for example, a web browser-equipped laptop, desktop, laptop, and the like.

In addition, the monitoring unit is a wireless communication device that guarantees portability and mobility, and may be composed of all kinds of handheld-based wireless communication devices such as smartphones, smart pads, tablet PCs, PCS, GSM, PDC, PHS, PDA, etc. There will be.

Accordingly, it may be configured to monitor and record management of environmental information such as temperature, humidity, etc. inside the freezing tower in real time, and to provide a notification to a user or manager in real time if necessary.

Meanwhile, in the above embodiments, the first set voltage is 23V, the second set voltage is 22V, and the third set voltage is preferably set to 21V, but is not limited thereto and may be changed as needed. is of course

Accordingly, the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

Even when the driver parks the refrigeration tower and leaves the vehicle for a while, the engine can be turned off to protect the engine and reduce fumes from idling. At the same time, there is an advantage that the refrigeration system can be used efficiently.

In addition, since the refrigeration system can be operated using a household 220V AC power supply, there is an advantage in that it is not necessary to move the refrigeration tower vehicle to move it to a separate refrigeration storage if cargoes requiring refrigeration and refrigeration remain in the freezer.

<Control method of a refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure>

8, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

When the sensed voltage is equal to or greater than the first set voltage, the microcontroller module 310 to the switch module 320 so that the first cooling module 110, the second cooling module 120, and the third cooling module 130 are driven together. ) controlling the step (S104a);

Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);

determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and

when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

9, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

If the sensed voltage is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);

When the sensed voltage is equal to or greater than the second set voltage, the microcontroller module 310 operates the switch module ( 320) controlling the step (S105a);

Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);

determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and

when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

Referring to Figure 10, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

If the sensed voltage is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);

when the sensed voltage is less than the second set voltage, determining whether the sensed voltage is equal to or greater than a preset third set voltage in the microcomputer module 310 (S105b);

When the sensed voltage is greater than or equal to the third set voltage, the switch module ( 320) controlling the step (S106a);

Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);

determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and

when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

11, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

If the sensed voltage is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);

when the sensed voltage is less than the second set voltage, determining whether the sensed voltage is equal to or greater than a preset third set voltage in the microcomputer module 310 (S105b);

If the sensed voltage is less than the third set voltage, determining whether power is supplied by the commercial power connection module 220 from the microcomputer module 310 (S106b);

When power is supplied by the commercial power connection module 220, the microcomputer module 310 so that the first cooling module 110, the second cooling module 120, and the third cooling module 130 are driven together. ) controlling the switch module 320 in (S107a);

Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);

determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and

when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

12, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

If the sensed voltage is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);

when the sensed voltage is less than the second set voltage, determining whether the sensed voltage is equal to or greater than a preset third set voltage in the microcomputer module 310 (S105b);

If the sensed voltage is less than the third set voltage, determining whether power is supplied by the commercial power connection module 220 from the microcomputer module 310 (S106b); and

When power is not supplied by the commercial power connection module 220, the microcomputer so that any one of the first cooling module 110, the second cooling module 120, and the third cooling module 130 is not driven. controlling the switch module 320 in the module 310 (S107b); It may be configured as comprising a.

In addition,

9, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

If the sensed voltage is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);

When the sensed voltage is equal to or greater than the second set voltage, the microcontroller module 310 operates the switch module ( 320) controlling the step (S105a);

Determining whether power is supplied from the microcomputer module 310 by the commercial power connection module 220 (not shown);

When power is supplied by the commercial power connection module 220, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together ( not shown);

Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);

determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and

when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

In addition,

Referring to Figure 10, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

In the refrigeration system for a refrigeration tower vehicle,

Power is supplied by the battery module 210 (S101);

Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;

Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);

If the sensed voltage is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);

when the sensed voltage is less than the second set voltage, determining whether the sensed voltage is equal to or greater than a preset third set voltage in the microcomputer module 310 (S105b);

When the sensed voltage is greater than or equal to the third set voltage, the switch module ( 320) controlling the step (S106a);

Determining whether power is supplied from the microcomputer module 310 by the commercial power connection module 220 (not shown);

When power is supplied by the commercial power connection module 220, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together ( not shown);

Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);

determining whether the sensed current is less than a preset current in the microcomputer module 310 (S109); and

when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); It may be configured as comprising a.

Meanwhile, in the above embodiments, the first set voltage is 23V, the second set voltage is 22V, and the third set voltage is preferably set to 21V, but is not limited thereto and may be changed as needed. is of course

Accordingly, the control method of the refrigeration system for a refrigeration tower vehicle according to an embodiment of the present disclosure,

By controlling the cooling unit according to the battery voltage, it has the advantage of protecting the battery and efficiently using the refrigeration system. There is an advantage that you can.

In addition, there is an advantage that the refrigeration system can be operated using the household 220V AC power.

Although described above with reference to the drawings according to the embodiment of the present disclosure, it is possible for those of ordinary skill in the art to make various applications, modifications and adaptations within the scope of the present invention based on the above contents. will be.

1000: refrigeration system for a refrigeration tower vehicle according to the present disclosure
S1000: Control method of a refrigeration system for a refrigeration tower vehicle according to the present disclosure
100: cooling unit 110: first cooling module
120: second cooling module 130: third cooling module
140: sterilization module 200: power supply
210: battery module 220: commercial power connection module
230: relay module 300: control unit
310: micom module 320: switch module
330: detection module 331: current detection unit
331a: current sensor 331b: amplifier
331c: A/D converter 332: voltage sensing unit
332a: voltage sensor 332b: amplifier
332c: A/D converter 333: temperature sensing unit
334: humidity sensing unit

Claims (10)

In the refrigeration system for a refrigeration tower vehicle,
Power is supplied by the battery module 210 (S101);
Step (S102) of detecting the voltage of the battery module 210 by the voltage sensing unit 332;
Determining whether the voltage sensed by the microcontroller module 310 is equal to or greater than a preset first set voltage (S103);
when the sensed voltage is equal to or greater than the first set voltage, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together (S104a);
Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);
determining whether the detected current is less than a preset current in the microcomputer module 310 (S109); and
when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); A control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it comprises a.
According to claim 1,
When the voltage sensed by the voltage sensing unit 332 is less than a first set voltage, determining whether the detected voltage is equal to or greater than a preset second set voltage in the microcomputer module 310 (S104b);
When the sensed voltage is equal to or greater than the second set voltage, the microcontroller module 310 operates the switch module ( controlling 320) (S105a);
Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);
determining whether the detected current is less than a preset current in the microcomputer module 310 (S109); and
when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S110); A control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it comprises a.
3. The method of claim 2,
When the voltage sensed by the voltage sensing unit 332 is less than the second set voltage, determining whether the detected voltage is greater than or equal to a preset third set voltage in the microcomputer module 310 (S105b);
When the sensed voltage is greater than or equal to the third set voltage, the switch module ( 320) controlling the step (S106a);
Step (S108) of detecting the current flowing in the cooling module driven by the current sensing unit (331);
determining whether the detected current is less than a preset current in the microcomputer module 310 (S109); and
When the sensed current is less than the set current, the microcomputer module 310 controls the switch module 320 so that the cooling module through which the current less than the set current flows is not driven (S110; characterized in that it comprises a step (S110) A control method of a refrigeration system for a refrigeration tower vehicle.
4. The method of claim 3,
When the voltage sensed by the voltage sensing unit 332 is less than the third set voltage, determining whether power is supplied by the commercial power connection module 220 in the microcomputer module 310 (S106b);
When power is supplied by the commercial power connection module 220, the microcomputer module 310 so that the first cooling module 110, the second cooling module 120, and the third cooling module 130 are driven together. ) controlling the switch module 320 in (S107a);
a step of detecting a current flowing in the cooling module driven by the current sensing unit 331 (S109);
Determining whether the detected current is less than a preset current in the microcomputer module 310 (S110); and
when the sensed current is less than the set current, controlling the switch module 320 in the microcomputer module 310 so that the cooling module through which the current less than the set current flows is not driven (S111); A control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it comprises a.
5. The method of claim 4,
When power is not supplied by the commercial power connection module 220, the microcomputer so that any one of the first cooling module 110, the second cooling module 120, and the third cooling module 130 is not driven. controlling the switch module 320 in the module 310 (S107b); A control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it comprises a.
3. The method of claim 2,
Between the step S105a and the step S108,
determining whether power is supplied from the microcomputer module 310 by the commercial power connection module 220;
when power is supplied by the commercial power connection module 220, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together; Control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it further comprises.
4. The method of claim 3,
Between the step S106a and the step S108,
determining whether power is supplied from the microcomputer module 310 by the commercial power connection module 220;
when power is supplied by the commercial power connection module 220, controlling the switch module 320 in the microcomputer module 310 so that the first cooling module, the second cooling module, and the third cooling module are driven together; Control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it further comprises.
8. The method according to any one of claims 1 to 7,
The control method of the refrigeration system for a refrigeration tower vehicle, characterized in that the first set voltage is set to 23V.
8. The method according to any one of claims 2 to 7,
The second set voltage is a control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it is set to 22V.
8. The method according to any one of claims 3 to 7,
The third set voltage is a control method of a refrigeration system for a refrigeration tower vehicle, characterized in that it is set to 21V.

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