CN113968119A - Vehicle-mounted thermal management system - Google Patents

Vehicle-mounted thermal management system Download PDF

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Publication number
CN113968119A
CN113968119A CN202111269661.0A CN202111269661A CN113968119A CN 113968119 A CN113968119 A CN 113968119A CN 202111269661 A CN202111269661 A CN 202111269661A CN 113968119 A CN113968119 A CN 113968119A
Authority
CN
China
Prior art keywords
vehicle
heat
thermal management
temperature
pump unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111269661.0A
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Chinese (zh)
Inventor
张萌
贾立峰
陈红伟
郭超
刘静
阎文静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Beiji Mechanical and Electrical Industry Co Ltd
Original Assignee
Beijing Beiji Mechanical and Electrical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Beiji Mechanical and Electrical Industry Co Ltd filed Critical Beijing Beiji Mechanical and Electrical Industry Co Ltd
Priority to CN202111269661.0A priority Critical patent/CN113968119A/en
Publication of CN113968119A publication Critical patent/CN113968119A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00421Driving arrangements for parts of a vehicle air-conditioning
    • B60H1/00428Driving arrangements for parts of a vehicle air-conditioning electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899Controlling the flow of liquid in a heat pump system
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307Component temperature regulation using a liquid flow
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

The invention provides a vehicle-mounted thermal management system, which not only can enable a battery to be in an optimal working temperature range, but also can reduce the electric quantity consumption of the vehicle-mounted battery, and improves the endurance mileage of an electric vehicle in winter and summer from two aspects. The vehicle-mounted thermal management system comprises: the system comprises a solar cell panel, a heat pump unit, a vehicle-mounted thermal cycle module and an intelligent thermal management module; the solar cell panel outside the vehicle body supplies power to drive the heat pump unit, supplies heat or cold for the vehicle-mounted battery compartment, regulates and controls the temperature of the vehicle-mounted battery compartment, and enables the vehicle-mounted battery to be always in the optimal working temperature range, so that the battery can provide the maximum output power.

Description

Vehicle-mounted thermal management system
Technical Field
The invention relates to a thermal management system, in particular to a vehicle-mounted thermal management system.
Background
At present, the main problem of the new energy vehicle is that under the condition of low temperature in winter, the electric energy output performance of the lithium battery is greatly improved under the low temperature state; in addition, a large amount of electric energy needs to be consumed in a heating mode of a traditional vehicle-mounted PTC air conditioner, the winter endurance mileage of the new energy automobile is reduced by 20% -30% due to comprehensive factors of the two aspects, and the driving experience of the new energy automobile is seriously influenced under the condition that the energy density of a battery is not high at present.
Therefore, in order to reduce the mileage anxiety of the new energy vehicle at the present stage, some manufacturers adopt a vehicle-mounted heat pump air conditioner (with the thermal efficiency 2-3 times higher than that of the PTC) to reduce the consumption of the air conditioner on electric energy in a heating mode, so that the winter endurance of the new energy vehicle is increased. However, even if the heat pump technology is applied independently, the endurance mileage can still be reduced by about 20%, so that the effect of solving the mileage anxiety of the new energy vehicle in winter by only depending on the vehicle-mounted heat pump air conditioner is limited. Therefore, the prior art is not beneficial to the popularization of new energy automobiles, and the strategic implementation of new energy automobiles in China is hindered.
Disclosure of Invention
In view of the above, the invention provides a vehicle-mounted thermal management system, which can enable a vehicle-mounted battery to be in an optimal working temperature range, reduce the power consumption of the vehicle-mounted battery, and improve the endurance mileage of an electric vehicle in winter and summer from two aspects.
An on-board thermal management system, comprising: the system comprises a solar cell panel, a heat pump unit, a vehicle-mounted thermal cycle module and an intelligent thermal management module;
the solar cell panel is laid outside the vehicle body and connected with the heat pump unit through the inverter and used for driving the heat pump unit; meanwhile, the vehicle-mounted battery is connected with the heat pump unit and used for supplying power to the heat pump unit when the solar cell panel is insufficient in power supply;
the heat pump unit converts electric energy into heat energy or cold energy according to a heating or refrigerating instruction of the intelligent heat management module, and then supplies heat or cold to the vehicle-mounted battery compartment through the vehicle-mounted heat circulation module so as to regulate and control the temperature in the vehicle-mounted battery compartment;
in addition, the intelligent thermal management module controls the on-off of the heat pump unit, controls the on-off of a power supply circuit between the vehicle-mounted battery and the heat pump unit, and controls the heat supply or cold supply of the vehicle-mounted thermal circulation module to the vehicle-mounted battery cabin.
As a preferable mode of the present invention, the vehicle-mounted battery pack further includes a temperature sensor for monitoring a temperature in the vehicle-mounted battery compartment; the temperature sensor feeds the monitored temperature in the vehicle-mounted battery compartment back to the intelligent thermal management module in real time; the optimal working temperature range in the vehicle-mounted battery cabin is preset in the intelligent thermal management module;
the intelligent thermal management module regulates and controls the heat supply or the cold supply of the vehicle-mounted thermal circulation module to the vehicle-mounted battery compartment in real time according to the monitoring value of the temperature sensor, and the temperature in the vehicle-mounted battery compartment is in a set optimal working temperature range.
In a preferred mode of the invention, the vehicle-mounted heat cycle module is further connected with a passenger compartment and used for supplying heat/cold to the passenger compartment.
As a preferable mode of the present invention, the vehicle-mounted thermal cycle module is further capable of collecting heat of the vehicle-mounted battery to supply to a passenger compartment.
As a preferable mode of the present invention, a temperature sensor for monitoring the internal temperature of the passenger compartment in real time is provided in the passenger compartment; the intelligent thermal management module regulates and controls the temperature in the passenger cabin according to the monitored temperature in the passenger cabin.
As a preferable mode of the invention, the vehicle-mounted heat cycle module is further connected with the electric control component cabin and is used for supplying heat/cold to the electric control component cabin.
As a preferable mode of the invention, the vehicle-mounted thermal cycle module can also collect heat of components with larger heat generation quantity in the electric control component cabin so as to provide the heat to the passenger cabin.
As a preferred mode of the invention, a temperature sensor for monitoring the internal temperature of the electric control component cabin in real time is arranged in the electric control component cabin; and the intelligent heat management module regulates and controls the temperature in the electric control assembly cabin according to the monitored temperature in the electric control assembly cabin.
In a preferred embodiment of the present invention, the solar cell panel is laid on a roof of the vehicle.
Has the advantages that:
(1) the solar panel laid outside the vehicle body supplies power to drive the heat pump unit to supply heat or cool for the vehicle-mounted battery compartment so as to regulate and control the temperature of the vehicle-mounted battery compartment, so that the vehicle-mounted battery is always in the optimal working temperature range, and the battery can provide the maximum output power.
(2) According to the invention, the solar cell panel laid outside the vehicle body supplies power to drive the heat pump unit, so as to supply heat or cold for the vehicle-mounted thermal cycle module and further supply heat or cold for the passenger cabin and the electric control component cabin; therefore, when the light is sufficient, the vehicle-mounted battery is not needed to supply power for the heat pump unit, the load of the vehicle-mounted battery is reduced, and the whole electric drive system is at the optimal working temperature.
(3) The invention not only reduces the electric quantity consumption of the vehicle-mounted battery, but also enables the battery to provide the maximum output power through temperature control, thereby improving the endurance mileage of the electric vehicle in winter and summer from two aspects.
(4) The vehicle-mounted thermal cycle module can also collect heat of parts with larger heat generation quantity (such as a vehicle-mounted battery and parts with larger heat generation quantity in an electric control assembly) and is used for supplying heat to the passenger compartment.
Drawings
FIG. 1 is a schematic diagram of the components of the onboard thermal management system of the present invention.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
Example 1:
the embodiment provides a vehicle-mounted thermal management system, which not only reduces the electric quantity consumption of a vehicle-mounted battery, but also enables the battery to provide the maximum output power through temperature control, and improves the endurance mileage of the electric vehicle in winter and summer from two aspects.
As shown in FIG. 1, the in-vehicle thermal management system includes: the solar heat pump system comprises a solar cell panel, a heat pump unit (namely a vehicle-mounted heat pump air conditioner), a vehicle-mounted heat circulation module and an intelligent heat management module.
Wherein the solar panel is laid outside the vehicle body, preferably on the top of the vehicle, and the available area of the solar panel passing through the vehicle top is about 2m2The peak power of the power generation is about 400W. The solar panel is used for receiving solar irradiation to generate power when sunlight is sufficient.
The solar cell panel is connected with the heat pump unit through the inverter and used for driving the heat pump unit; meanwhile, the vehicle-mounted battery is also connected with the heat pump unit and used for supplying power to the heat pump unit when the power supply of the solar cell panel is insufficient.
The heat pump unit is connected with the vehicle-mounted heat circulation module and used for supplying heat or cold to the vehicle-mounted heat circulation module;
the vehicle-mounted heat circulation module is respectively connected with the vehicle-mounted battery cabin and the electric control assembly cabin and performs heat (cold) exchange with the vehicle-mounted battery cabin and the electric control assembly cabin; meanwhile, the vehicle-mounted heat circulation module is connected with the passenger cabin and supplies heat (cold) to the passenger cabin.
The intelligent heat management module controls the start and stop of the heat pump unit and controls the heat pump unit to refrigerate or heat; meanwhile, the intelligent thermal management module controls the on-off of a power supply line between the vehicle-mounted battery and the heat pump unit.
In addition, temperature sensors for monitoring the temperature in real time are arranged on the vehicle-mounted battery, the electric control component cabin and the passenger cabin, and data monitored by all the temperature sensors are sent to the intelligent thermal management module in real time; and the intelligent thermal management module performs energy distribution according to the monitoring data of each temperature sensor.
The operation principle of the vehicle-mounted thermal management system is as follows:
when sunlight is sufficient in the daytime, the intelligent heat management module starts a heat pump unit; the solar cell panel receives sunlight to generate electricity, and the generated electricity is subjected to alternating current-direct current conversion and voltage transformation and stabilization through the inverter and then is supplied to the heat pump unit to drive the heat pump unit; the heat pump unit converts electric energy into heat energy or cold energy according to a heating or refrigerating instruction of the intelligent heat management module, has a high energy efficiency ratio of 1:4, and can amplify energy of the solar cell panel through the heat pump unit.
The heat pump unit transmits the prepared heat or cold to the vehicle-mounted heat circulation module, the heat or cold is transmitted to the vehicle-mounted battery compartment through the vehicle-mounted heat circulation module, and the temperature in the vehicle-mounted battery compartment is regulated and controlled, so that the battery in the vehicle-mounted battery compartment is in a set optimal working temperature range. If the external temperature is low in winter, the heat pump unit converts electric energy into heat energy, the heat energy is supplied to the vehicle-mounted battery compartment through the vehicle-mounted heat circulation module, the temperature sensor in the vehicle-mounted battery compartment monitors the temperature in the vehicle-mounted battery compartment in real time (or monitors the temperature in the vehicle-mounted battery compartment in real time through the temperature sensor) and feeds the temperature back to the intelligent heat management module, and the optimal working temperature range in the vehicle-mounted battery compartment is preset in the intelligent heat management module; the intelligent thermal management module regulates and controls the heat supply amount of the vehicle-mounted heat circulation module to the vehicle-mounted battery compartment according to the monitoring value of the temperature sensor so as to ensure that the temperature in the vehicle-mounted battery compartment is always in the set optimal working temperature range.
Meanwhile, the vehicle-mounted thermal circulation module also transmits heat or cold to the electric control component cabin and the passenger cabin, and regulates and controls the temperature in the electric control component cabin and the passenger cabin according to the monitoring values of the temperature sensors in the electric control component cabin and the passenger cabin.
When sunshine is insufficient such as cloudy day or evening, intelligent heat management module starts on-vehicle battery and supplies power for heat pump set, and heat pump set converts the electric energy into heat energy or cold energy according to intelligent heat management module's heating or refrigeration instruction, transmits for the car carries heat circulation module.
The vehicle-mounted thermal management system can greatly improve the efficiency of the thermal management system of the new energy automobile, the intelligent management module comprehensively manages the photovoltaic, the heat pump and the battery, and the maximum working efficiency of the battery is exerted.
The energy demand for temperature control of the vehicle-mounted electric drive system is preferentially supplied by the solar panel on the top of the vehicle, and the available area of the roof of the vehicle is about 2m2About, the peak power of the power generation is about 400W, and the heat or the refrigerating capacity of 1200W to 1600W can be generated after the peak power is input into a vehicle-mounted heat pump (by utilizing the high energy efficiency ratio of the heat pump 1: 4), the heat or the refrigerating capacity required by the temperature control of the battery can be met,
example 2:
on the basis of the embodiment 1, further, the vehicle-mounted thermal cycle module can also collect the heat of the components with larger heat generation quantity, such as the vehicle-mounted battery and the components with larger heat generation quantity in the electronic control assembly, so as to provide the heat for the passenger compartment.
For example, when the temperature is high due to continuous work of the components with high heat generation quantity in the vehicle-mounted battery or the electric control assembly in winter, the vehicle-mounted thermal circulation module collects the heat of the components with high heat generation quantity in the vehicle-mounted battery or the electric control assembly (namely, the heat exchange is carried out between the components with high heat generation quantity in the vehicle-mounted battery or the electric control assembly), and then the collected heat is provided for the passenger compartment.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. An onboard thermal management system, comprising: the system comprises a solar cell panel, a heat pump unit, a vehicle-mounted thermal cycle module and an intelligent thermal management module;
the solar cell panel is laid outside the vehicle body and connected with the heat pump unit through the inverter and used for driving the heat pump unit; meanwhile, the vehicle-mounted battery is connected with the heat pump unit and used for supplying power to the heat pump unit when the solar cell panel is insufficient in power supply;
the heat pump unit converts electric energy into heat energy or cold energy according to a heating or refrigerating instruction of the intelligent heat management module, and then supplies heat or cold to the vehicle-mounted battery compartment through the vehicle-mounted heat circulation module so as to regulate and control the temperature in the vehicle-mounted battery compartment;
in addition, the intelligent thermal management module controls the on-off of the heat pump unit, controls the on-off of a power supply circuit between the vehicle-mounted battery and the heat pump unit, and controls the heat supply or cold supply of the vehicle-mounted thermal circulation module to the vehicle-mounted battery cabin.
2. The on-board thermal management system of claim 1, further comprising a temperature sensor for monitoring a temperature within the on-board battery compartment; the temperature sensor feeds the monitored temperature in the vehicle-mounted battery compartment back to the intelligent thermal management module in real time; the optimal working temperature range in the vehicle-mounted battery cabin is preset in the intelligent thermal management module;
the intelligent thermal management module regulates and controls the heat supply or the cold supply of the vehicle-mounted thermal circulation module to the vehicle-mounted battery compartment in real time according to the monitoring value of the temperature sensor, and the temperature in the vehicle-mounted battery compartment is in a set optimal working temperature range.
3. The on-board thermal management system of claim 1, wherein the vehicle heat cycle module is further coupled to a passenger compartment for providing heat/cold to the passenger compartment.
4. The onboard thermal management system of claim 3, wherein the onboard thermal cycle module is further capable of collecting heat from the onboard battery for provision to a passenger compartment.
5. The vehicle thermal management system according to claim 3 or 4, wherein a temperature sensor for monitoring the internal temperature thereof in real time is provided in the passenger compartment; the intelligent thermal management module regulates and controls the temperature in the passenger cabin according to the monitored temperature in the passenger cabin.
6. The vehicle thermal management system of claim 1, wherein said vehicle heat circulation module is further coupled to an electronic control component compartment for providing heat/cold to the electronic control component compartment.
7. The on-board thermal management system of claim 6, wherein the vehicle heat circulation module is further capable of collecting heat from components in the electronic control component compartment that generate a greater amount of heat for provision to the passenger compartment.
8. The vehicle thermal management system according to claim 5 or 6, wherein a temperature sensor for monitoring the internal temperature of the electronic control component cabin in real time is arranged in the electronic control component cabin; and the intelligent heat management module regulates and controls the temperature in the electric control assembly cabin according to the monitored temperature in the electric control assembly cabin.
9. The on-board thermal management system of claim 1, wherein the solar panel is laid on top of a vehicle.
CN202111269661.0A 2021-10-29 2021-10-29 Vehicle-mounted thermal management system Pending CN113968119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111269661.0A CN113968119A (en) 2021-10-29 2021-10-29 Vehicle-mounted thermal management system

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Application Number Priority Date Filing Date Title
CN202111269661.0A CN113968119A (en) 2021-10-29 2021-10-29 Vehicle-mounted thermal management system

Publications (1)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070017666A1 (en) * 2005-07-19 2007-01-25 Goenka Lakhi N Energy management system for a hybrid-electric vehicle
WO2011108067A1 (en) * 2010-03-01 2011-09-09 トヨタ自動車 株式会社 Control device for vehicle
CN109484247A (en) * 2018-11-12 2019-03-19 北京交通大学 A kind of battery of electric vehicle cabin constant temperature system using vehicle-mounted photovoltaic generating-charging
CN111301101A (en) * 2020-03-06 2020-06-19 广汽新能源汽车有限公司 New energy automobile's thermal management system and new energy automobile
CN112109521A (en) * 2020-09-17 2020-12-22 东风汽车集团有限公司 Whole-vehicle thermal management system of pure electric vehicle
CN112537180A (en) * 2019-09-23 2021-03-23 北京新能源汽车股份有限公司 Thermal management system, control method and device and automobile
CN113085485A (en) * 2021-04-29 2021-07-09 吉林大学 Integrated thermal management system for whole vehicle for pure electric vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070017666A1 (en) * 2005-07-19 2007-01-25 Goenka Lakhi N Energy management system for a hybrid-electric vehicle
WO2011108067A1 (en) * 2010-03-01 2011-09-09 トヨタ自動車 株式会社 Control device for vehicle
CN109484247A (en) * 2018-11-12 2019-03-19 北京交通大学 A kind of battery of electric vehicle cabin constant temperature system using vehicle-mounted photovoltaic generating-charging
CN112537180A (en) * 2019-09-23 2021-03-23 北京新能源汽车股份有限公司 Thermal management system, control method and device and automobile
CN111301101A (en) * 2020-03-06 2020-06-19 广汽新能源汽车有限公司 New energy automobile's thermal management system and new energy automobile
CN112109521A (en) * 2020-09-17 2020-12-22 东风汽车集团有限公司 Whole-vehicle thermal management system of pure electric vehicle
CN113085485A (en) * 2021-04-29 2021-07-09 吉林大学 Integrated thermal management system for whole vehicle for pure electric vehicle

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