CN113419577B - Temperature control method - Google Patents

Temperature control method Download PDF

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Publication number
CN113419577B
CN113419577B CN202110488584.1A CN202110488584A CN113419577B CN 113419577 B CN113419577 B CN 113419577B CN 202110488584 A CN202110488584 A CN 202110488584A CN 113419577 B CN113419577 B CN 113419577B
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Prior art keywords
temperature data
battery
temperature
power distribution
environment temperature
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CN113419577A (en
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李永通
周凌
黄俊杰
敖长宣
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Zhuhai Kechuang Power Electronics Co ltd
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Zhuhai Kechuang Power Electronics Co ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • G05D23/30Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
    • 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
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses a temperature control method, which comprises the following steps: the environment monitoring device acquires power distribution environment temperature data of the power distribution bin and sends the power distribution environment temperature data to the control unit; the temperature regulation controller acquires battery environment temperature data of the battery compartment through the first temperature sensor and sends the battery environment temperature data to the control unit; the control unit monitors and sends feedback signals to the environment monitoring device and the temperature regulation controller according to the power distribution environment temperature data and the battery environment temperature data; the environment monitoring device controls the heating device to work according to the data of the temperature of the power distribution environment; the temperature adjusting controller controls the heating unit and the refrigerating unit to work according to the battery environment temperature data; the control unit controls the first heat dissipation device to work according to the power distribution environment temperature data. The temperature control method can ensure that the electrochemical energy storage system of the emergency power supply vehicle can normally work under the condition of severe external environment so as to improve the applicability of the emergency power supply vehicle.

Description

Temperature control method
Technical Field
The invention relates to the technical field of emergency power supplies, in particular to a temperature control method.
Background
With the development of science and technology, people have higher and higher requirements on the reliability of power supply. In large-scale meeting places, construction sites, government agencies, and the like, significant political and economic losses result in failure of the power supply system to supply power properly. At present, a mobile emergency power supply vehicle is available, which can provide emergency power supply when a power supply system fails, so as to avoid great loss. However, when the environmental conditions are severe, the emergency power supply vehicle cannot be used normally, for example, under the condition of the external environmental temperature of-40 ℃, the temperature in the power distribution cabin and the cabin of the battery cabin in the emergency power supply vehicle is low, and the energy storage battery and part of components cannot work normally, so that the electrochemical energy storage system in the emergency power supply vehicle is abnormal, and the applicability of the emergency power supply vehicle is low.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a temperature control method which can improve the applicability of the emergency power supply vehicle.
The temperature control method provided by the embodiment of the invention is applied to an emergency power supply vehicle provided with a power distribution bin and a battery bin, wherein the power distribution bin is internally provided with a control unit, an environment monitoring device, a heating device and a first heat dissipation device, and the battery bin is internally provided with a temperature adjusting controller, a heating unit, a refrigerating unit and a first temperature sensor, and the method comprises the following steps: the environment monitoring device acquires power distribution environment temperature data of the power distribution bin and sends the power distribution environment temperature data to the control unit; the temperature adjusting controller acquires battery environment temperature data of the battery compartment through the first temperature sensor and sends the battery environment temperature data to the control unit; the control unit monitors and sends feedback signals to the environment monitoring device and the temperature adjusting controller according to the power distribution environment temperature data and the battery environment temperature data; the environment monitoring device controls the heating device to work according to the power distribution environment temperature data and the feedback signal; the temperature adjusting controller controls the heating unit and the refrigerating unit to work according to the battery environment temperature data and the feedback signal;
and the control unit controls the first heat dissipation device to work according to the power distribution environment temperature data.
The temperature control method provided by the embodiment of the invention has at least the following beneficial effects: the control unit monitors the environment monitoring device and the temperature adjusting controller through power distribution environment temperature data and battery environment temperature data, namely, the control unit can monitor and control the working states of the environment monitoring device and the temperature adjusting controller through feedback signals. When the working state of the environment monitoring device or the temperature adjusting controller goes wrong, the control unit can control the environment monitoring device or the temperature adjusting controller to work, so as to improve the reliability, thereby the environment monitoring device, the temperature in the distribution bin and the battery bin can be adjusted by the temperature adjusting controller and the control unit together, namely, the environment monitoring device controls the heating device to work, the temperature adjusting controller controls the heating unit and the refrigerating unit to work, the control unit controls the first heat dissipation device to work, so that the distribution ambient temperature data of the distribution bin and the battery ambient temperature data of the battery bin all accord with the working requirements of the emergency power supply vehicle, the temperature in the bin is prevented from being abnormal under the influence of the external ambient temperature, so that the electrochemical energy storage system of the emergency power supply vehicle can normally work, and the applicability of the emergency power supply vehicle is improved.
According to some embodiments of the invention, the environment monitoring device controls the heating device to operate according to the power distribution environment temperature data and the feedback signal, comprising: when the power distribution environment temperature data is within a preset first power distribution temperature range, the environment monitoring device starts the heating device; when the power distribution environment temperature data are within a preset second power distribution temperature range, the environment monitoring device stops the heating device.
According to some embodiments of the invention, the temperature controller controls the operation of the heating unit and the cooling unit according to the battery ambient temperature data and the feedback signal, comprising the steps of: when the battery environment temperature data is within a preset first battery temperature range, the temperature regulation controller starts the refrigeration unit; when the battery environment temperature data is within a preset second battery temperature range, the temperature regulation controller stops the refrigeration unit; when the battery environment temperature data is within a preset third battery temperature range, the temperature regulation controller starts the heating unit; and when the battery environment temperature data is within a preset fourth battery temperature range, the temperature regulation controller stops the heating unit.
According to some embodiments of the present invention, the power distribution bin is further provided with a rectifier cabinet, an inverter cabinet, a second temperature sensor and a third temperature sensor, the control unit controls the first heat dissipation device to work according to the power distribution environment temperature data, and the method comprises the following steps: the control unit acquires first temperature data of the rectifier cabinet through the second temperature sensor; the control unit acquires second temperature data of the inverter cabinet through the third temperature sensor; the control unit controls the first heat dissipation device to work according to the first temperature data, the second temperature data and the power distribution environment temperature data.
According to some embodiments of the invention, the control unit controls the first heat sink to operate according to the first temperature data, the second temperature data and the power distribution environment temperature data, comprising the steps of: when any one of the first temperature data, the second temperature data and the power distribution environment temperature data is within a preset third power distribution temperature range, the control unit starts the first heat dissipation device; and when the first temperature data, the second temperature data and the power distribution environment temperature data are all in a preset fourth power distribution temperature range, the control unit stops the first heat dissipation device.
According to some embodiments of the invention, the battery compartment is further provided with a battery management unit, a battery pack, a heating unit, a second heat sink and a fourth temperature sensor, the method further comprising the steps of: the battery management unit acquires third temperature data of the battery pack through the fourth temperature sensor and sends the third temperature data to the control unit; the battery management unit controls the heating unit to work according to the third temperature data; and the control unit controls the second heat dissipation device to work according to the third temperature data and the battery environment temperature data.
According to some embodiments of the invention, the battery management unit controls the heating unit to operate according to the third temperature data, comprising: when the third temperature data is within a preset fifth battery temperature range, the battery management unit starts the heating unit; and when the third temperature data is within a preset sixth battery temperature range, the battery management unit stops the heating unit.
According to some embodiments of the invention, the control unit controls the second heat sink to operate according to the third temperature data and the battery environment temperature data, including the steps of: when any one of the third temperature data and the battery environment temperature data is within a preset seventh battery temperature range, the control unit starts the second heat dissipation device; and when the third temperature data and the battery environment temperature data are both within a preset eighth battery temperature range, the control unit stops the second heat dissipation device.
According to some embodiments of the invention, the control unit monitors and sends feedback signals to the environment monitoring device and the temperature regulation controller according to the power distribution environment temperature data and the battery environment temperature data, comprising the steps of: the control unit confirms whether the power distribution environment temperature data and the battery environment temperature data are abnormal or not; when the power distribution environment temperature data are abnormal and the battery environment temperature data are normal, the control unit generates first replacement temperature data according to the battery environment temperature data and pre-stored historical data, and updates the power distribution environment temperature data into the first replacement temperature data; when the battery environment temperature data are abnormal and the power distribution environment temperature data are normal, the control unit generates second replacement temperature data according to the power distribution environment temperature data and the historical data, and updates the battery environment temperature data into the second replacement temperature data.
According to some embodiments of the present invention, the control unit confirming whether there is an abnormality in the power distribution environment temperature data and the battery environment temperature data, includes the steps of: when the power distribution environment temperature data is equal to preset first abnormal data, the control unit confirms that the power distribution environment temperature data is abnormal; and when the battery environment temperature data is equal to preset second abnormal data, the control unit confirms that the battery environment temperature data is abnormal.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a temperature control method according to an embodiment of the present invention;
FIG. 2 is a detailed flow chart of the temperature control method shown in FIG. 1;
FIG. 3 is a second flowchart of the temperature control method shown in FIG. 1;
FIG. 4 is a third flowchart of the temperature control method shown in FIG. 1;
FIG. 5 is a fourth flowchart illustrating the temperature control method shown in FIG. 4;
FIG. 6 is a flow chart of additional steps of the temperature control method shown in FIG. 1;
FIG. 7 is a fifth flowchart illustrating the temperature control method shown in FIG. 6;
FIG. 8 is a sixth flowchart illustrating a temperature control method shown in FIG. 6;
FIG. 9 is a seventh flowchart illustrating a detailed temperature control method shown in FIG. 1;
fig. 10 is an eighth flowchart of the temperature control method shown in fig. 9.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
A Battery Management Unit (BMU) is an electronic device capable of monitoring and managing a storage Battery.
The utility model provides an emergency power supply car, is provided with distribution storehouse and battery compartment, be provided with the control unit in the distribution storehouse, environment monitoring device, the rectifier cabinet, the contravariant cabinet, heating device and heat abstractor, install second temperature sensor on the rectifier cabinet, install the third temperature sensor on the contravariant cabinet, be provided with first temperature sensor in the battery compartment, the controller that adjusts the temperature, warm unit, the refrigeration unit, the battery management unit, battery package and second heat abstractor, install heating unit and fourth temperature sensor in the battery package.
Referring to fig. 1, a temperature control method applied to the emergency power supply vehicle provided with the power distribution cabin and the battery cabin includes the following steps: step S100, step S200, step S300, step S400, step S500, and step S600.
And S100, the environment monitoring device acquires power distribution environment temperature data of the power distribution bin and sends the power distribution environment temperature data to the control unit.
And step S200, the temperature regulation controller acquires battery environment temperature data of the battery compartment through the first temperature sensor and sends the battery environment temperature data to the control unit.
And step S300, the control unit monitors and sends feedback signals to the environment monitoring device and the temperature regulation controller according to the power distribution environment temperature data and the battery environment temperature data.
And step S400, the environment monitoring device controls the heating device to work according to the power distribution environment temperature data and the feedback signal.
And S500, controlling the heating unit and the refrigerating unit to work by the temperature adjusting controller according to the battery environment temperature data and the feedback signal.
Step S600, the control unit controls the first heat dissipation device to work according to the power distribution environment temperature data.
Specifically, the control unit acquires power distribution environment temperature data and battery environment temperature data through the environment monitoring device and the first temperature sensor respectively, so that the working states of the environment monitoring device and the temperature regulation controller are monitored and controlled according to the power distribution environment temperature data and the battery environment temperature data, the environment monitoring device starts or stops the heating device according to the power distribution environment temperature data under the control of the control unit, and the temperature regulation controller controls the heating unit and the refrigeration power supply to work according to the battery environment temperature data under the control of the control unit, namely, the environment monitoring device, the temperature regulation controller and the control unit are all related to each other, but are not independently operated units or devices, which are beneficial to mutual cooperation, thereby improving the reliability, and enabling the temperatures in a power distribution cabin and a battery cabin of the emergency power supply vehicle to be regulated to preset temperatures more quickly, the temperature in the bin is prevented from being abnormal due to the influence of the external environment temperature, so that the working requirement of an electrochemical energy storage system in the emergency power supply vehicle is met, and the applicability of the emergency power supply vehicle is improved.
For example, when the outside environment temperature is low, such as-10 ℃, the temperature in the cabin of the emergency power supply vehicle is low.
The emergency power supply vehicle starts, and the control unit acquires distribution environment temperature data and battery environment temperature data, confirms that distribution environment temperature data and battery environment temperature data are normal for both, and then environment monitoring device and thermoregulation controller normally work start heating device and heating unit respectively to improve distribution environment temperature data and battery environment temperature data.
Or when the temperature of the external environment is higher, such as 40 ℃, the temperature in the cabin of the emergency power supply vehicle is higher.
The emergency power supply vehicle starts, and the control unit acquires distribution environment temperature data and battery environment temperature data, confirms that both distribution environment temperature data and battery environment temperature data are normal, and then environment monitoring device and thermoregulation controller normally work, and the control unit starts first heat abstractor, and the thermoregulation controller starts the refrigeration unit to reduce distribution environment temperature data and battery environment temperature data.
It should be noted that, in this embodiment, the control unit is a main control module of the electrochemical energy storage system. In some embodiments, the control unit includes not only a main control module of the electrochemical energy storage system, but also a sub-controller for processing the power distribution environmental temperature data and the battery environmental temperature data together according to actual requirements. In addition, the environment monitoring device can also acquire external environment temperature data, humidity data in the power distribution bin and other information; the first temperature sensor can also acquire information such as humidity data in the battery compartment.
Referring to fig. 2, step S400 includes the steps of: step S410 and step S420.
Step S410, when the power distribution environmental temperature data is in a preset first power distribution temperature range, the environmental monitoring device starts the heating device;
step S420, when the power distribution environmental temperature data is within the preset second power distribution temperature range, the environmental monitoring device stops the heating device.
Specifically, whether environmental monitoring device is in first distribution temperature within range or second temperature data within range through judging distribution environment temperature data to the decision starts heating device or stops heating device, with the distribution environment temperature who adjusts the distribution storehouse, makes the normal work of electrochemical energy storage system of emergency power source car, so that improves emergency power source car's suitability. The first distribution temperature range and the second distribution temperature range can be set according to actual requirements, for example, the first distribution temperature range is set to be negative infinity to-10 ℃, the second distribution temperature range is set to be 10 ℃ to positive infinity, then, when the distribution environmental temperature is reduced to-10 ℃, the environment monitoring device starts the heating device, and when the distribution environmental temperature is increased to 10 ℃, the environment monitoring device stops the heating device; or the first distribution temperature range is set to be-5 ℃ to 0 ℃, the second distribution temperature range is set to be 10 ℃ to 15 ℃, the environment monitoring device starts the heating device when the distribution environment temperature is reduced to 0 ℃, and stops the heating device when the distribution environment temperature is increased to 10 ℃. According to the setting, the first distribution temperature range and the second distribution temperature range are not overlapped, and the end point values of the first distribution temperature range and the second distribution temperature range are not overlapped, so that the heating device can be prevented from being repeatedly started and stopped in a short time, and the power consumption is prevented from being increased.
It should be noted that the heating device may be an electric heater, a hot air blower, an air conditioner, or the like.
Referring to fig. 3, step S500 includes the steps of: step S510, step S520, step S530, and step S540.
Step S510, when the ambient temperature data of the battery is within a first preset battery temperature range, the temperature controller starts the cooling unit.
And step S520, when the battery environment temperature data is within a preset second battery temperature range, the temperature regulation controller stops the refrigeration unit.
In step S530, when the battery ambient temperature data is within the preset third battery temperature range, the temperature adjustment controller starts the heating unit.
In step S540, when the battery ambient temperature data is within the preset fourth battery temperature range, the temperature adjustment controller stops the heating unit.
Specifically, the thermoregulation controller determines the starting and stopping of the refrigerating unit and the heating unit by judging whether the battery environment temperature data is in a first battery temperature range, a second battery temperature range, a third battery temperature range or a fourth battery temperature range, so that the battery environment temperature of the battery compartment is regulated to meet the working requirements, the electrochemical energy storage system of the emergency power supply vehicle normally works, and the applicability of the emergency power supply vehicle is improved.
The first battery temperature range, the second battery temperature range, the third battery temperature range, and the fourth battery temperature range may be set according to actual demands. For example, the first battery temperature range is set to 30 ℃ to positive infinity, the second battery temperature range is set to negative infinity to 25 ℃, the third battery temperature range is set to negative infinity to-10 ℃, and the fourth battery temperature range is set to 10 ℃ to positive infinity. According to the above arrangement, the first battery temperature range and the second battery temperature range do not overlap, and the end points of the first battery temperature range and the second battery temperature range do not overlap; the third battery temperature range and the fourth battery temperature range are not overlapped, and the end points of the third battery temperature range and the fourth battery temperature range are not overlapped, so that the refrigerating unit and the heating unit can be prevented from being repeatedly started and stopped in a short time, and the power consumption is prevented from being increased.
It should be noted that the heating unit may adopt a hot air blower, and the cooling unit may adopt an cold air blower, or the heating unit, the cooling unit and the temperature adjustment controller are replaced by an air conditioner.
Referring to fig. 4, step S600 includes the steps of: step S610, step S620, and step S630.
In step S610, the control unit obtains first temperature data of the rectifier cabinet through the second temperature sensor.
In step S620, the control unit obtains second temperature data of the inverter cabinet through the third temperature sensor.
In step S630, the control unit controls the first heat dissipation device to operate according to the first temperature data, the second temperature data and the power distribution environment temperature data.
Specifically, rectifier cabinet and contravariant cabinet, when these temperature between them appeared changing, there was the condition that distribution environmental temperature had not changed yet, and rectifier cabinet and contravariant cabinet's high temperature can influence electrochemical energy storage system's normal work, therefore, the control unit is except according to distribution environmental temperature data, still need control first heat abstractor work according to the first temperature data of rectifier cabinet and the second temperature data of contravariant cabinet to make rectifier cabinet and contravariant cabinet's temperature satisfy the operating requirement, so that electrochemical energy storage system normally works.
Referring to fig. 5, step S630 includes the following steps S631 and S632.
In step S631, when any one of the first temperature data, the second temperature data, and the power distribution environment temperature data is within a preset third power distribution temperature range, the control unit starts the first heat dissipation device.
In step S632, when the first temperature data, the second temperature data, and the power distribution environment temperature data are all within the preset fourth power distribution temperature range, the control unit stops the first heat dissipation device.
Specifically, the control unit determines to start the first heat dissipation device or stop the first heat dissipation device by judging whether the first temperature data, the second temperature data and the power distribution environment temperature data meet the starting condition or the stopping condition, so that the temperatures of the power distribution environment temperature, the rectifier cabinet and the inverter cabinet are reduced, and the working requirement of the electrochemical energy storage system is met. The starting condition means that any one of the first temperature data, the second temperature data and the power distribution environment temperature data is in a third power distribution temperature range; the stop condition means that the first temperature data, the second temperature data, and the power distribution environment temperature data are all within the fourth power distribution temperature range.
The third distribution temperature range and the fourth distribution temperature range may be set according to actual requirements, for example, the third distribution temperature range is set to 35 ℃ to positive infinity, and the fourth distribution temperature range is set to negative infinity to 25 ℃; or the third distribution temperature range is set to 30 ℃ to 50 ℃ and the fourth distribution temperature range is set to 15 ℃ to 20 ℃. In the above arrangement, the third distribution temperature range and the fourth distribution temperature range do not overlap, and the end points of the third distribution temperature range and the fourth distribution temperature range do not overlap, so that the first heat dissipation device can be prevented from being repeatedly started and stopped in a short time, and the increase of power consumption is avoided.
It should be noted that the first heat dissipation device may adopt a fan, an electric louver, an air cooler, an air conditioner, or other devices.
Referring to fig. 6, the temperature control method further includes step S700, step S800, and step S900.
In step S700, the battery management unit obtains third temperature data of the battery pack through the fourth temperature sensor, and sends the third temperature data to the control unit.
And step S800, the battery management unit controls the heating unit to work according to the third temperature data.
And step S900, the control unit controls the second heat dissipation device to work according to the third temperature data and the battery environment temperature data.
Specifically, when the temperature of the battery pack rises, the ambient temperature of the battery is not yet raised, and when the ambient temperature of the battery is actively raised, the temperature of the battery pack rises slowly or cannot meet the requirement, for example, a lithium iron phosphate battery, so that the working requirement of an electrochemical energy storage system is met in a longer time, and therefore, the temperature of the battery pack needs to be adjusted so as to meet the working requirement in a shorter time, so that the emergency power supply vehicle can normally work, and the applicability of the emergency power supply vehicle is favorably improved. The battery management unit judges whether the battery pack needs to be heated according to the third temperature data of the battery pack, namely, whether the heating unit is started. The control unit synthesizes the third temperature data and the battery environment temperature data to judge whether the battery pack needs to be radiated and whether the battery pack needs to be subjected to auxiliary heating, namely, whether the second heat dissipation device is started.
Referring to fig. 7, step S800 includes step S810 and step S820.
In step S810, when the third temperature data is within a preset fifth battery temperature range, the battery management unit starts the heating unit.
In step S820, when the third temperature data is within the preset sixth battery temperature range, the battery management unit stops the heating unit.
Specifically, the battery management unit determines whether to start the heating unit or stop the heating unit by judging whether the third temperature data is in the fifth battery temperature range or the sixth battery temperature range, so as to improve the temperature of the battery pack, so that the working requirement is met, the emergency power supply vehicle can work when the external environment temperature is low, and the improvement of the applicability of the emergency power supply vehicle is facilitated.
The fifth battery temperature range and the sixth battery temperature range may be set according to actual requirements, for example, the fifth battery temperature range is set to negative infinity to 10 ℃, and the sixth battery temperature range is set to 15 ℃ to positive infinity; alternatively, the fifth battery temperature range is set to-50 ℃ to 5 ℃, and the sixth battery temperature range is set to 10 ℃ to 20 ℃. In the above setting, the fifth battery temperature range and the sixth battery temperature range do not overlap, and the end points of the fifth battery temperature range and the sixth battery temperature range do not overlap, so that repeated start and stop of the heating unit in a short time can be avoided, and thus, increase of power consumption can be avoided.
The heating unit may employ a heating sheet, a heater, or the like.
Referring to fig. 8, step S900 includes step S910 and step S920.
In step S910, when any one of the third temperature data and the battery environment temperature data is within a preset seventh battery temperature range, the control unit starts the second heat dissipation device.
In step S920, when the third temperature data and the battery environment temperature data are both within the preset eighth battery temperature range, the control unit stops the second heat dissipation device.
Specifically, the control unit determines whether the second heat dissipation device needs to be started or stopped through the third temperature data, the battery ambient temperature data, the seventh battery temperature range and the eighth battery temperature range, so as to reduce the temperature of the battery pack or assist the heating unit to increase the battery ambient temperature and the temperature of the battery pack. When the heating unit works, the second heat dissipation device can diffuse the warm air flow generated by the heating unit, so that the warm air flow can reach the position needing to be heated more quickly.
The seventh battery temperature range and the eighth battery temperature range may be set according to actual requirements, for example, the seventh battery temperature range is set to negative infinity to-10 ℃ and 25 ℃ to positive infinity, and the eighth battery temperature range is set to 5 ℃ to 10 ℃; or the seventh battery temperature range is set to negative infinity to-5 c and 20 c to positive infinity, and the eighth battery temperature range is set to 10 c to 15 c.
It should be noted that the second heat dissipation device may adopt a combination of a battery pack fan and a battery cluster fan.
Referring to fig. 9, step S300 includes step S310, step S320, and step S330.
In step S310, the control unit confirms whether there is an abnormality in the power distribution environment temperature data and the battery environment temperature data.
In step S320, when the power distribution environment temperature data is abnormal and the battery environment temperature data is normal, the control unit generates first replacement temperature data according to the battery environment temperature data and the pre-stored history data, and updates the power distribution environment temperature data to the first replacement temperature data.
And step S330, when the battery environment temperature data is abnormal and the power distribution environment temperature data is normal, the control unit generates second replacement temperature data according to the power distribution environment temperature data and the historical data, and updates the battery environment temperature data into the second replacement temperature data.
Wherein, the control unit monitors the environment monitoring device and the temperature adjusting controller through the power distribution environment temperature data and the battery environment temperature data. In the actual use process, the situation that the actual power distribution environment temperature data cannot be detected by the environment monitoring device or the situation that the actual battery environment temperature data cannot be acquired by the temperature regulation controller through the first temperature sensor may exist. Based on this, under the condition that the control unit does not monitor, the environment monitoring device can not control the heating device to work, or the temperature adjusting controller can not control the heating unit and the refrigerating unit to work, namely the working state of the environment monitoring device or the temperature adjusting controller is abnormal. And through the operating condition of the control unit through distribution environment temperature data and battery environment temperature data monitoring environment monitoring devices and thermoregulation controller, can make environment monitoring devices and thermoregulation controller can both normally work to improve the suitability of emergency power source car.
When the environment monitoring device and the temperature regulation controller work normally, the control unit stores the power distribution environment temperature data and the battery environment temperature data at the moment into historical data, then, the generation mode of the first replacement temperature data and the second replacement temperature data is generated by searching the power distribution environment temperature data and the battery environment temperature data in the historical data, in addition, the environment monitoring device updates the power distribution environment temperature data into the first replacement temperature data through a feedback signal, and the temperature regulation controller updates the battery environment temperature data into the second replacement temperature data through the feedback signal. In some embodiments, when the environment monitoring device and the temperature controller work normally, the control unit may further record information such as external environment temperature data, power distribution bin humidity data, and battery bin humidity data, so as to generate the first replacement temperature data and the second replacement temperature data. For example, if the power distribution environment temperature data is abnormal, the battery environment temperature data is normal and is 20 ℃, and if the battery environment temperature data is 20 ℃ in the historical data, the corresponding power distribution environment temperature data is 18 ℃, and the generated first replacement temperature data is 18 ℃; or, if the battery environmental temperature data is abnormal, the power distribution environmental temperature data is normal and is 25 ℃, and in the historical data, when the power distribution environmental temperature data is 25 ℃, the corresponding battery environmental temperature data is 28 ℃, and the generated second replacement temperature data is 28 ℃.
Referring to fig. 10, step S310 includes step S311 and step S312.
In step S311, when the power distribution environment temperature data is equal to the preset first abnormal data, the control unit confirms that the power distribution environment temperature data is abnormal.
In step S312, when the battery ambient temperature data is equal to the preset second abnormal data, the control unit determines that the battery ambient temperature data is abnormal.
Specifically, when the actual power distribution environment temperature data cannot be detected, the power distribution environment temperature data sent by the environment monitoring device to the control unit is preset, for example, the preset power distribution environment temperature data is 1000 ℃, so as to be distinguished from the normal power distribution environment temperature data, and then the first abnormal data is also 1000 ℃. Similarly, when the actual battery environment temperature data cannot be obtained, the battery environment temperature data sent by the temperature adjustment controller to the control unit is preset, for example, the preset battery environment temperature data is 2000 ℃, so as to be distinguished from the normal battery environment temperature data, and then the second abnormal data is also 2000 ℃.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (9)

1. The temperature control method is characterized by being applied to an emergency power supply vehicle provided with a power distribution cabin and a battery cabin, wherein a control unit, an environment monitoring device, a heating device and a first heat dissipation device are arranged in the power distribution cabin, a temperature adjusting controller, a heating unit, a refrigerating unit, a first temperature sensor, a battery management unit, a battery pack, a heating unit, a second heat dissipation device and a fourth temperature sensor are arranged in the battery cabin, and the method comprises the following steps:
the environment monitoring device acquires power distribution environment temperature data of the power distribution bin and sends the power distribution environment temperature data to the control unit;
the temperature adjusting controller acquires battery environment temperature data of the battery compartment through the first temperature sensor and sends the battery environment temperature data to the control unit;
the control unit monitors and sends feedback signals to the environment monitoring device and the temperature adjusting controller according to the power distribution environment temperature data and the battery environment temperature data;
the environment monitoring device controls the heating device to work according to the power distribution environment temperature data and the feedback signal;
the temperature adjusting controller controls the heating unit and the refrigerating unit to work according to the battery environment temperature data and the feedback signal;
the control unit controls the first heat dissipation device to work according to the power distribution environment temperature data;
the battery management unit acquires third temperature data of the battery pack through the fourth temperature sensor and sends the third temperature data to the control unit;
the battery management unit controls the heating unit to work according to the third temperature data;
the control unit controls the second heat dissipation device to work according to the third temperature data and the battery environment temperature data;
wherein, the temperature regulation controller controls the heating unit and the refrigerating unit to work according to the battery environment temperature data and the feedback signal, and comprises the following steps:
when the battery environment temperature data is within a preset third battery temperature range, the temperature regulation controller starts the heating unit;
the control unit controls the second heat dissipation device to work according to the third temperature data and the battery environment temperature data, and the control method comprises the following steps:
and when any one of the third temperature data and the battery environment temperature data is within a preset seventh battery temperature range, or when the battery environment temperature data is within the preset third battery temperature range and the seventh battery temperature range at the same time, the control unit starts the second heat dissipation device.
2. The temperature control method according to claim 1, wherein the environment monitoring device controls the heating device to operate according to the power distribution environment temperature data and the feedback signal, and comprises the following steps:
when the power distribution environment temperature data is within a preset first power distribution temperature range, the environment monitoring device starts the heating device;
and when the power distribution environment temperature data is within a preset second power distribution temperature range, the environment monitoring device stops the heating device.
3. The temperature control method according to claim 1, wherein the temperature controller controls the operation of the heating unit and the cooling unit according to the battery ambient temperature data and the feedback signal, further comprising the steps of:
when the battery environment temperature data is within a preset first battery temperature range, the temperature regulation controller starts the refrigeration unit;
when the battery environment temperature data is within a preset second battery temperature range, the temperature regulation controller stops the refrigeration unit;
and when the battery environment temperature data is within a preset fourth battery temperature range, the temperature regulation controller stops the heating unit.
4. The temperature control method according to claim 1, wherein the power distribution bin is further provided with a rectifier cabinet, an inverter cabinet, a second temperature sensor and a third temperature sensor, the control unit controls the first heat dissipation device to work according to the power distribution environment temperature data, and the method comprises the following steps:
the control unit acquires first temperature data of the rectifier cabinet through the second temperature sensor;
the control unit acquires second temperature data of the inverter cabinet through the third temperature sensor;
the control unit controls the first heat dissipation device to work according to the first temperature data, the second temperature data and the power distribution environment temperature data.
5. The temperature control method according to claim 4, wherein the control unit controls the first heat sink to operate according to the first temperature data, the second temperature data and the power distribution environment temperature data, comprising the steps of:
when any one of the first temperature data, the second temperature data and the power distribution environment temperature data is within a preset third power distribution temperature range, the control unit starts the first heat dissipation device;
and when the first temperature data, the second temperature data and the power distribution environment temperature data are all in a preset fourth power distribution temperature range, the control unit stops the first heat dissipation device.
6. The temperature control method according to claim 1, wherein the battery management unit controls the heating unit to operate according to the third temperature data, comprising the steps of:
when the third temperature data is within a preset fifth battery temperature range, the battery management unit starts the heating unit;
and when the third temperature data is within a preset sixth battery temperature range, the battery management unit stops the heating unit.
7. The temperature control method according to claim 1, wherein the control unit controls the second heat sink to operate according to the third temperature data and the battery ambient temperature data, further comprising the steps of:
and when the third temperature data and the battery environment temperature data are both within a preset eighth battery temperature range, the control unit stops the second heat dissipation device.
8. The temperature control method according to claim 1, wherein the control unit monitors and sends feedback signals to the environment monitoring device and the temperature-regulating controller according to the power distribution environment temperature data and the battery environment temperature data, comprising the steps of:
the control unit confirms whether the power distribution environment temperature data and the battery environment temperature data are abnormal or not;
when the power distribution environment temperature data are abnormal and the battery environment temperature data are normal, the control unit generates first replacement temperature data according to the battery environment temperature data and pre-stored historical data, and updates the power distribution environment temperature data into the first replacement temperature data;
when the battery environment temperature data is abnormal and the power distribution environment temperature data is normal, the control unit generates second replacement temperature data according to the power distribution environment temperature data and the historical data, and updates the battery environment temperature data into the second replacement temperature data.
9. The temperature control method according to claim 8, wherein the control unit confirms whether there is an abnormality in the power distribution environment temperature data and the battery environment temperature data, comprising the steps of:
when the power distribution environment temperature data is equal to preset first abnormal data, the control unit confirms that the power distribution environment temperature data is abnormal;
and when the battery environment temperature data is equal to preset second abnormal data, the control unit confirms that the battery environment temperature data is abnormal.
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