CN117246163A - Control method of liquid cooling charging gun, controller and charging pile - Google Patents
Control method of liquid cooling charging gun, controller and charging pile Download PDFInfo
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- CN117246163A CN117246163A CN202311336041.3A CN202311336041A CN117246163A CN 117246163 A CN117246163 A CN 117246163A CN 202311336041 A CN202311336041 A CN 202311336041A CN 117246163 A CN117246163 A CN 117246163A
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- 239000007788 liquid Substances 0.000 title claims abstract description 101
- 238000001816 cooling Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 52
- 239000000110 cooling liquid Substances 0.000 claims abstract description 39
- 238000004590 computer program Methods 0.000 claims description 19
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000000875 corresponding effect Effects 0.000 description 36
- 230000017525 heat dissipation Effects 0.000 description 22
- 230000001276 controlling effect Effects 0.000 description 15
- 230000008569 process Effects 0.000 description 15
- 230000007613 environmental effect Effects 0.000 description 12
- 239000002826 coolant Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application provides a control method of a liquid cooling charging gun, a controller and a charging pile. The method comprises the following steps: acquiring a current parameter value of a charging parameter of the liquid cooling charging gun; determining a target flow rate corresponding to a current parameter value of the charging parameter; and controlling the cooling liquid in the liquid cooling charging gun to circularly flow at a target flow rate so that the working temperature of the liquid cooling charging gun does not exceed a preset temperature. The application can improve the charging efficiency and ensure the charging reliability.
Description
Technical Field
The application relates to the technical field of vehicle charging, in particular to a control method, a controller and a charging pile of a liquid cooling charging gun.
Background
With the continuous increase of electric vehicles, the charging time is an important point of attention, and the charging time can be effectively shortened due to the increase of the charging power. Therefore, in order to shorten the charging time, the power of each charging pile is larger and larger, and in the charging process, the heat dissipation design of the charging gun is important.
With the continuous increase of the power of the charging pile, the liquid cooling heat dissipation gradually replaces the traditional air cooling heat dissipation. The liquid cooling heat dissipation is that a special liquid circulation channel is arranged between the cable and the charging gun, liquid cooling liquid with heat dissipation effect is added into the circulation channel, and the cooling liquid is driven to circulate by the power pump, so that heat generated by the charging gun in the charging process is brought out to be dissipated. The charging efficiency of the charging gun can be greatly improved through liquid cooling heat dissipation, and the charging time of a user is saved.
Currently, most drive coolant is circulated at a fixed flow rate after a charge gun using liquid cooled heat dissipation is started. However, the heat generated by the charging gun changes in real time during the charging process. Continuing to control the coolant flow at a fixed flow rate may be difficult to meet the heat dissipation requirements of the charging gun, may extend the charging duration, and may affect the charging experience of the user.
Disclosure of Invention
The application provides a control method, a controller and a charging pile of a liquid cooling charging gun, which are used for solving the problems that the existing liquid cooling heat dissipation mode is difficult to meet the heat dissipation requirement of the charging gun, the charging time is possibly prolonged, and the charging experience of a user is affected.
In a first aspect, the present application provides a control method of a liquid-cooled charging gun, including:
acquiring a current parameter value of a charging parameter of the liquid cooling charging gun;
determining a target flow rate corresponding to a current parameter value of the charging parameter;
and controlling the cooling liquid in the liquid cooling charging gun to circularly flow at a target flow rate so that the working temperature of the liquid cooling charging gun does not exceed a preset temperature.
In one possible implementation, the parameter value of the charging parameter includes a current value of the charging current, and determining the target flow rate corresponding to the current parameter value of the charging parameter includes:
acquiring a charging current-flow rate correspondence table between a current value of a charging current and a flow rate of a cooling liquid, wherein the larger the current value of the charging current is, the faster the flow rate of the cooling liquid is;
and determining the flow rate corresponding to the current value based on the charging current-flow rate correspondence table, and taking the flow rate as a target flow rate.
In one possible implementation, the parameter value of the charging parameter includes a current value of the charging current, and determining the target flow rate corresponding to the current parameter value of the charging parameter includes:
when the current value is smaller than a first preset current value, the target flow rate is a first flow rate;
when the current value is greater than or equal to a first preset current value and less than or equal to a second preset current value, the target flow rate is a second flow rate;
when the current value is larger than the second preset current value, the target flow rate is a third flow rate;
the first preset current value is smaller than the second preset current value, the first flow rate is smaller than the second flow rate, and the second flow rate is smaller than the third flow rate.
In one possible implementation, the preset temperatures include a first preset temperature, a second preset temperature, and a third preset temperature, the first preset temperature being less than the second preset temperature, the second preset temperature being less than the third preset temperature;
the first flow rate corresponds to a first preset temperature, the second flow rate corresponds to a second preset temperature, and the third flow rate corresponds to a third preset temperature.
In one possible implementation, after controlling the circulation of the coolant in the liquid-cooled charging gun at the target flow rate, the control method further includes:
acquiring the working temperature of the liquid cooling charging gun;
when the working temperature exceeds the preset temperature, a first alarm signal is output, and the first alarm signal is used for indicating that the charging temperature is abnormal.
In one possible implementation, the control method further includes:
acquiring a target time length and target times, wherein the target time length is the duration time when the working temperature exceeds the preset temperature, and the target times are times when the working temperature exceeds the preset temperature in a preset time period;
and when the target time length exceeds the preset time length and the target times exceed the preset times, controlling the liquid cooling charging gun to stop charging.
In a second aspect, the present application provides a control device for a liquid-cooled charging gun, including:
the acquisition module is used for acquiring the current parameter value of the charging parameter of the liquid cooling charging gun;
the calculation module is used for determining a target flow rate corresponding to the current parameter value of the charging parameter;
and the control module is used for controlling the cooling liquid in the liquid cooling charging gun to circularly flow at a target flow rate so that the working temperature of the liquid cooling charging gun does not exceed a preset temperature.
In a third aspect, the present application provides a controller comprising a memory and a processor, the memory storing a computer program executable on the processor, the processor executing the steps of the method for controlling a liquid cooled charging gun implementing any one of the possible implementations of the first aspect or the first aspect as described above.
In a fourth aspect, the present application provides a charging pile comprising a controller as in the third aspect above.
In a fifth aspect, the present application provides a computer readable storage medium storing a computer program which when executed by a processor implements the steps of the method for controlling a liquid cooled charging gun as described above in the first aspect or any one of the possible implementations of the first aspect.
The utility model provides a control method, controller and electric pile that fills of liquid cooling rifle, through the current parameter value that obtains the current parameter value of the charging parameter of liquid cooling rifle, then confirm the target velocity of flow that the current parameter value of charging parameter corresponds, the coolant liquid in the final control liquid cooling rifle that charges circulates with the target velocity of flow, so that the operating temperature of liquid cooling rifle does not surpass preset temperature, realize according to the charging parameter dynamic control coolant liquid velocity of flow of liquid cooling rifle that charges, make the liquid cooling rifle fully dispel the heat in the charging process, shorten user's charge duration, make charging efficiency higher, guarantee the reliability that charges, further improve user's experience that charges.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of an implementation of a control method of a liquid-cooled charging gun according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a control device of a liquid-cooled charging gun according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of a controller provided in an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following description will be made with reference to the accompanying drawings by way of specific embodiments.
Referring to fig. 1, a flowchart of an implementation of a method for controlling a liquid-cooled charging gun according to an embodiment of the present application is shown. As shown in fig. 1, a method for controlling a liquid-cooled charging gun may include S101 to S103.
S101, acquiring a current parameter value of a charging parameter of the liquid cooling charging gun.
The execution main body in this application embodiment is the charge control module that can control the circulation flow rate of the cooling liquid in the liquid cooling charging gun, and this charge control module can set up in the liquid cooling charging gun, also can set up in the charging stake that the liquid cooling charging gun is located, specifically can select according to actual conditions.
The charging control module may be a charging controller in the liquid-cooled charging gun or a controller in a charging pile where the liquid-cooled charging gun is located.
Optionally, the charging parameter is a parameter of the liquid cooling charging gun in a charging process. The charging parameters may include one or more of a charging current, a charging voltage, a charging power, a charging duration, a charging period.
Alternatively, the charging control module may directly acquire the current parameter value of the charging parameter. Or, an acquisition module corresponding to the charging parameter may be set, and the charging control module may receive the current parameter value uploaded by the corresponding acquisition module.
S102, determining a target flow rate corresponding to the current parameter value of the charging parameter.
The heat dissipation effect is directly influenced by the flow speed of cooling liquid in the liquid cooling charging gun, and the higher the flow speed of the cooling liquid is, the better the heat dissipation effect of the liquid cooling charging gun in the charging process is. The target flow rate is the flow rate corresponding to the current parameter value under the better heat dissipation effect.
In the embodiment of the present application, the target flow rate corresponding to the current parameter value of the charging parameter may be determined by a table look-up method.
Alternatively, the larger the current value of the charging current, the higher the heat generated during charging, and the faster the circulation flow rate of the cooling liquid needs to be controlled at this time, so the current value of the charging current is positively correlated with the flow rate of the cooling liquid. And a corresponding relation table of the current value of the charging current and the flow rate of the cooling liquid can be calibrated in a pre-calibration mode, and finally, the optimal flow rate corresponding to the current value is determined through table lookup.
The larger the power value of the charging power, the higher the heat generated in the charging process, and the faster the circulating flow speed of the cooling liquid needs to be controlled at this time, so the power value of the charging power is positively correlated with the flow speed of the cooling liquid. And a corresponding relation table of the power value of the charging power and the flow rate of the cooling liquid can be calibrated in a pre-calibration mode, and finally, the optimal flow rate corresponding to the current power value is determined through table lookup.
S103, controlling the cooling liquid in the liquid cooling charging gun to circularly flow at a target flow rate so that the working temperature of the liquid cooling charging gun does not exceed a preset temperature.
After the target flow rate is determined, the cooling liquid in the liquid cooling charging gun can be controlled to circularly flow at the target flow rate, so that the working temperature of the liquid cooling charging gun does not exceed the preset temperature. For example, the power pump may be controlled to rotate to drive the coolant to circulate at a target flow rate.
Alternatively, the different target flow rates may correspond to the same preset temperature, or the different target flow rates may correspond to different preset temperatures.
Specifically, the target flow rate may be a first flow rate, a second flow rate, or a third flow rate, the first flow rate being smaller than the second flow rate, the second flow rate being smaller than the third flow rate. The first flow rate, the second flow rate, and the third flow rate may each correspond to a specified preset temperature. Or, the preset temperatures may include a first preset temperature, a second preset temperature, and a third preset temperature, the first preset temperature being less than the second preset temperature, the second preset temperature being less than the third preset temperature. The first flow rate corresponds to a first preset temperature, the second flow rate corresponds to a second preset temperature, and the third flow rate corresponds to a third preset temperature. The setting can be specifically performed according to actual conditions.
According to the embodiment of the application, the flow rate of the cooling liquid is dynamically controlled according to the charging parameters of the liquid cooling charging gun, so that the liquid cooling charging gun can fully dissipate heat in the charging process, the charging time of a user is shortened, the charging efficiency is higher, the charging reliability is guaranteed, and the charging experience of the user is further improved.
In some embodiments of the present application, the parameter value of the charging parameter includes a current value of the charging current, and determining the target flow rate corresponding to the current parameter value of the charging parameter includes:
acquiring a charging current-flow rate correspondence table between a current value of a charging current and a flow rate of a cooling liquid, wherein the larger the current value of the charging current is, the faster the flow rate of the cooling liquid is;
and determining the flow rate corresponding to the current value based on the charging current-flow rate correspondence table, and taking the flow rate as a target flow rate.
In the charging process of the liquid cooling charging gun, the charging current is a charging parameter with the most obvious change, so that the flow rate of cooling liquid in the liquid cooling charging gun is adjusted according to the change of the current value of the charging current by monitoring the current value of the charging current, the working temperature of the liquid cooling charging gun does not exceed the preset temperature, and the charging time of a user is shortened.
The corresponding relation between the charging current and the flow rate can be determined through calibration in advance, and a corresponding relation table, namely a charging current-flow rate corresponding relation table is formed.
Specifically, in the charging current-flow rate correspondence table, each charging current can correspond to one flow rate, and the flow rate is the optimal heat dissipation flow rate of the liquid cooling charging gun under the charging current, so that the one-to-one correspondence can ensure the accuracy of adjustment, and the heat dissipation matching degree is more accurate and reliable. Or the charging current is divided into a plurality of current ranges, each current range corresponds to one flow rate, frequent adjustment of the flow rate can be avoided, and charging reliability is ensured.
After the current value of the charging current of the liquid cooling charging gun is obtained, the flow speed corresponding to the current value is determined through table lookup, the flow speed is used as a target flow speed, and finally, the cooling liquid is controlled to circularly flow at the target flow speed, so that the heat of the liquid cooling charging gun in the charging process is rapidly dissipated, the purpose of dynamically reducing the working temperature of the liquid cooling charging gun is achieved, the charging time is shortened, and the charging experience of a user is improved.
In some embodiments of the present application, the parameter value of the charging parameter includes a current value of the charging current, and determining the target flow rate corresponding to the current parameter value of the charging parameter includes:
when the current value is smaller than a first preset current value, the target flow rate is a first flow rate;
when the current value is greater than or equal to a first preset current value and less than or equal to a second preset current value, the target flow rate is a second flow rate;
when the current value is larger than the second preset current value, the target flow rate is a third flow rate;
the first preset current value is smaller than the second preset current value, the first flow rate is smaller than the second flow rate, and the second flow rate is smaller than the third flow rate.
Optionally, the preset temperature includes a first preset temperature, a second preset temperature, and a third preset temperature, the first preset temperature is less than the second preset temperature, and the second preset temperature is less than the third preset temperature. The first flow rate corresponds to a first preset temperature, the second flow rate corresponds to a second preset temperature, and the third flow rate corresponds to a third preset temperature.
Specifically, when the current value is smaller than a first preset current value, the first flow rate is selected as a target flow rate, and the cooling liquid in the liquid cooling charging gun is controlled to circularly flow at the first flow rate, so that the working temperature of the liquid cooling charging gun does not exceed the first preset temperature.
When the current value is larger than or equal to a first preset current value and smaller than or equal to a second preset current value, the second flow rate is selected as a target flow rate, and the cooling liquid in the liquid cooling charging gun is controlled to circularly flow at the second flow rate, so that the working temperature of the liquid cooling charging gun does not exceed the second preset temperature.
When the current value is larger than the second preset current value, the third flow rate is selected as a target flow rate, and the cooling liquid in the liquid cooling charging gun is controlled to circularly flow at the third flow rate, so that the working temperature of the liquid cooling charging gun does not exceed the third preset temperature.
In the embodiment of the present application, the current value of the charging current may be divided into a plurality of ranges, and the preset current value may also be correspondingly divided into a plurality of ranges, which may be specifically selected according to the actual situation.
According to the embodiment of the application, the plurality of preset current value thresholds are set, each range corresponds to different flow rates, the cooling liquid in the liquid cooling charging gun is controlled to circulate at different flow rates, and therefore the working temperature of the liquid cooling charging gun meets different range requirements, heat dissipation requirements can be met, excessive use of a power pump for driving the cooling liquid to circularly flow can be avoided, the service life is prolonged, and the working reliability of the liquid cooling charging gun is guaranteed.
In some embodiments of the present application, after controlling the circulating flow of the coolant in the liquid-cooled charging gun at the target flow rate, the control method further comprises:
and obtaining the working temperature of the liquid cooling charging gun.
When the working temperature exceeds the preset temperature, a first alarm signal is output, and the first alarm signal is used for indicating that the charging temperature is abnormal.
After the cooling liquid in the liquid cooling charging gun is controlled to circularly flow at the target flow rate, the working temperature of the liquid cooling charging gun can be obtained after the preset time period, and whether the working temperature of the liquid cooling charging gun is normal or not can be judged according to the obtained working temperature. When the working temperature exceeds the preset temperature, the charging control module can output a first alarm signal to the outside so as to prompt that the charging temperature of the current liquid cooling charging gun is abnormal.
Optionally, the liquid cooling charging gun may be provided with an early warning indicator, and when the working temperature exceeds the preset temperature, the charging control module sends a first warning signal to the early warning indicator to control the early warning indicator to light up, so as to remind the user of abnormal current charging temperature.
Or when the working temperature exceeds the preset temperature, the charging control module can send the first alarm signal to the user terminal through the communication module so as to remind the user of abnormal current charging temperature.
Or, the liquid cooling charging gun can be provided with a voice module, and when the working temperature exceeds the preset temperature, the charging control module can send a first alarm signal to the voice module, so that voice prompt is realized that the current charging temperature of the user is abnormal.
When the working temperature is abnormal, the first alarm signal is output to prompt the user that the charging temperature is abnormal, so that the probability of accident occurrence can be reduced, and the safety of the user is protected.
In some embodiments of the present application, the method for controlling a liquid-cooled charging gun may further include:
acquiring a target time length and target times, wherein the target time length is the duration time when the working temperature exceeds the preset temperature, and the target times are times when the working temperature exceeds the preset temperature in a preset time period;
and when the target time length exceeds the preset time length and the target times exceed the preset times, controlling the liquid cooling charging gun to stop charging.
Optionally, when the target duration exceeds the preset duration and the target number exceeds the preset number, a second alarm signal may be output, where the second alarm signal is used to indicate the liquid cooling charging fault.
After the cooling liquid in the liquid cooling charging gun is controlled to circularly flow at the target flow rate, if the duration that the working temperature of the liquid cooling charging gun exceeds the preset temperature exceeds the preset duration, the cooling liquid in the current liquid cooling charging gun may be abnormally circulated or the equipment may be failed. At this time, if the number of times that the working temperature of the liquid cooling charging gun exceeds the preset temperature exceeds the preset number of times in the preset period, the liquid cooling heat dissipation of the current liquid cooling charging gun may fail.
When the two conditions are met simultaneously, the liquid cooling heat dissipation failure of the liquid cooling charging gun can be judged, namely the liquid cooling charging gun fails, at the moment, the liquid cooling charging gun is controlled to stop working, the probability of accident of the liquid cooling charging gun can be reduced, and the occurrence of interlinked accidents is avoided.
In some embodiments of the present application, after obtaining the current parameter value of the charging parameter of the liquid-cooled charging gun, the control method may further include:
and acquiring the current environmental parameter value of the environmental parameter of the liquid cooling charging gun. The environmental parameters may include, among other things, ambient temperature, ambient season, ambient time, etc.
Accordingly, determining the target flow rate corresponding to the current parameter value of the charging parameter may include:
and determining a target flow rate corresponding to the current parameter value of the charging parameter based on the current environment parameter value corresponding to the environment parameter.
Alternatively, the environmental parameter may be an environmental temperature, and when the environmental temperature is too high, the heat dissipation may be poor (for example, in summer) under the condition of small current of the liquid cooling charging gun, and a larger flow rate may be selected as the target flow rate. When the ambient temperature is too low (for example, in winter), the heat dissipation is better under the condition of possibly high current of the liquid cooling charging gun, and a smaller flow rate can be selected as the target flow rate.
Specifically, the environmental parameter is an environmental temperature, and the charging parameter is a charging current. Determining a target flow rate corresponding to a current parameter value of the charging parameter based on the current environmental parameter value corresponding to the environmental parameter, comprising:
when the current temperature value corresponding to the ambient temperature is smaller than a first preset ambient temperature value, multiplying the current value of the charging current by a first weight to obtain a weighted first current value, and selecting the flow rate corresponding to the first current value as a target flow rate.
When the current temperature value corresponding to the ambient temperature is larger than or equal to a first preset ambient temperature value and smaller than or equal to a second preset ambient temperature value, multiplying the current value of the charging current by a second weight to obtain a weighted second current value, and selecting the flow rate corresponding to the second current value as a target flow rate.
When the current temperature value corresponding to the ambient temperature is larger than a second preset ambient temperature value, multiplying the current value of the charging current by a third weight to obtain a weighted third current value, and selecting the flow rate corresponding to the third current value as a target flow rate.
The first preset environmental temperature value is smaller than the second preset environmental temperature value, the first weight is smaller than the second weight, and the second weight is smaller than the third weight.
A lower than first preset ambient temperature value indicates a low temperature environment is currently possible, a position between the first preset ambient temperature value and a second preset ambient temperature value indicates a normal temperature environment is currently possible, and a higher than second preset ambient temperature value indicates a high temperature environment is currently possible.
For example, the first weight may be 0.8, the second weight may be 1, and the third weight may be 1.2, which may be specifically selected according to practical situations.
According to the embodiment of the application, the lower first weight is selected for weighting at low temperature, the current value is reduced, the lower flow rate is selected as the target flow rate, and the power consumption of the power pump is reduced while the heat dissipation effect is ensured. And selecting the middle second weight for weighting at normal temperature, and keeping the current value unchanged without influencing the selection of the flow rate. And selecting a third weight for weighting at a high temperature, increasing the current value, and further selecting a higher flow rate as a target flow rate to ensure the heat dissipation effect. Through combining ambient temperature, realize dynamic empowerment, guarantee that liquid cooling charges rifle at the intelligent empowerment of in-process that four seasons changed and adjust, improve the radiating effect, and then shorten the duration of charging, improve user's experience of charging.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.
The following are device embodiments of the present application, for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 2 is a schematic structural diagram of a control device of a liquid cooling charging gun according to an embodiment of the present application, and for convenience of explanation, only a portion related to the embodiment of the present application is shown, and the following details are described:
as shown in fig. 2, the control device 20 of the liquid-cooled charging gun may include:
an obtaining module 201, configured to obtain a current parameter value of a charging parameter of the liquid cooling charging gun;
a calculation module 202, configured to determine a target flow rate corresponding to a current parameter value of the charging parameter;
and the control module 203 is used for controlling the cooling liquid in the liquid cooling charging gun to circularly flow at a target flow rate so that the working temperature of the liquid cooling charging gun does not exceed a preset temperature.
In some embodiments of the present application, the parameter values of the charging parameters include a current value of the charging current, and the calculation module 202 may be further configured to:
acquiring a charging current-flow rate correspondence table between a current value of a charging current and a flow rate of a cooling liquid, wherein the larger the current value of the charging current is, the faster the flow rate of the cooling liquid is;
and determining the flow rate corresponding to the current value based on the charging current-flow rate correspondence table, and taking the flow rate as a target flow rate.
In some embodiments of the present application, the parameter values of the charging parameters include a current value of the charging current, and the calculation module 202 may be further configured to:
when the current value is smaller than a first preset current value, the target flow rate is a first flow rate;
when the current value is greater than or equal to a first preset current value and less than or equal to a second preset current value, the target flow rate is a second flow rate;
when the current value is larger than the second preset current value, the target flow rate is a third flow rate;
the first preset current value is smaller than the second preset current value, the first flow rate is smaller than the second flow rate, and the second flow rate is smaller than the third flow rate.
In some embodiments of the present application, the preset temperatures include a first preset temperature, a second preset temperature, and a third preset temperature, the first preset temperature being less than the second preset temperature, the second preset temperature being less than the third preset temperature;
the first flow rate corresponds to a first preset temperature, the second flow rate corresponds to a second preset temperature, and the third flow rate corresponds to a third preset temperature.
In some embodiments of the present application, the control device 20 may further include:
the first alarm module is used for acquiring the working temperature of the liquid cooling charging gun; when the working temperature exceeds the preset temperature, a first alarm signal is output, and the first alarm signal is used for indicating that the charging temperature is abnormal.
In some embodiments of the present application, the control device 20 may further include:
the second alarm module is used for acquiring target duration and target times, wherein the target duration is duration when the working temperature exceeds the preset temperature, and the target times are times when the working temperature exceeds the preset temperature in a preset time period; and when the target time length exceeds the preset time length and the target times exceed the preset times, controlling the liquid cooling charging gun to stop charging.
Fig. 3 is a schematic diagram of a controller provided in an embodiment of the present application. As shown in fig. 3, the controller 30 of this embodiment includes: a processor 300 and a memory 301, the memory 301 having stored therein a computer program 302 executable on the processor 300. The steps of the above-described embodiments of the control method of each liquid-cooled charging gun are implemented by the processor 300 when executing the computer program 302. Alternatively, processor 300, when executing computer program 302, performs the functions of the modules/units of the apparatus embodiments described above
By way of example, the computer program 302 may be partitioned into one or more modules/units, which are stored in the memory 301 and executed by the processor 300 to complete the present application. One or more of the modules/units may be a series of computer program instruction segments capable of performing particular functions to describe the execution of the computer program 302 in the controller 30.
The controller 30 may be a charge control chip, a single chip microcomputer chip, or the like. The controller 30 may include, but is not limited to, a processor 300, a memory 301. It will be appreciated by those skilled in the art that fig. 3 is merely an example of the controller 30 and is not meant to be limiting of the controller 30, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the controller may further include input-output devices, network access devices, buses, etc.
The processor 300 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 301 may be an internal storage unit of the controller 30, such as a hard disk or a memory of the controller 30. The memory 301 may also be an external storage device of the controller 30, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the controller 30. Further, the memory 301 may also include both an internal storage unit and an external storage device of the controller 30. The memory 301 is used to store computer programs and other programs and data required by the controller. The memory 301 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
The embodiment of the application also provides a charging pile, which comprises the controller 30. The charging stake also includes a liquid-cooled charging gun, and the controller 30 is configured to control operation of the liquid-cooled charging gun.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in this application, it should be understood that the disclosed apparatus/controller and method may be implemented in other ways. For example, the apparatus/controller embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application implements all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of the method embodiment of controlling each liquid-cooled charging gun. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. A method of controlling a liquid-cooled charging gun, comprising:
acquiring a current parameter value of a charging parameter of the liquid cooling charging gun;
determining a target flow rate corresponding to the current parameter value of the charging parameter;
and controlling the cooling liquid in the liquid cooling charging gun to circularly flow at the target flow speed so that the working temperature of the liquid cooling charging gun does not exceed the preset temperature.
2. The method according to claim 1, wherein the parameter value of the charging parameter includes a current value of the charging current, and the determining the target flow rate corresponding to the current parameter value of the charging parameter includes:
acquiring a charging current-flow rate correspondence table between the current value of the charging current and the flow rate of the cooling liquid, wherein the larger the current value of the charging current is, the faster the flow rate of the cooling liquid is;
and determining the flow rate corresponding to the current value based on the charging current-flow rate correspondence table, and taking the flow rate as a target flow rate.
3. The method according to claim 1, wherein the parameter value of the charging parameter includes a current value of the charging current, and the determining the target flow rate corresponding to the current parameter value of the charging parameter includes:
when the current value is smaller than a first preset current value, the target flow rate is a first flow rate;
when the current value is larger than or equal to a first preset current value and smaller than or equal to a second preset current value, the target flow rate is a second flow rate;
when the current value is larger than a second preset current value, the target flow rate is a third flow rate;
the first preset current value is smaller than the second preset current value, the first flow rate is smaller than the second flow rate, and the second flow rate is smaller than the third flow rate.
4. The method of claim 3, wherein the predetermined temperatures include a first predetermined temperature, a second predetermined temperature, and a third predetermined temperature, the first predetermined temperature being less than the second predetermined temperature, the second predetermined temperature being less than the third predetermined temperature;
the first flow rate corresponds to a first preset temperature, the second flow rate corresponds to a second preset temperature, and the third flow rate corresponds to a third preset temperature.
5. The control method of the liquid-cooled charging gun according to any one of claims 1 to 4, characterized in that, after controlling the circulation flow of the cooling liquid in the liquid-cooled charging gun at the target flow rate, the control method further comprises:
acquiring the working temperature of the liquid cooling charging gun;
when the working temperature exceeds the preset temperature, a first alarm signal is output, and the first alarm signal is used for indicating that the charging temperature is abnormal.
6. The method of controlling a liquid-cooled charging gun of claim 5, further comprising:
acquiring a target time length and a target frequency, wherein the target time length is the time length when the working temperature exceeds a preset temperature, and the target frequency is the frequency when the working temperature exceeds the preset temperature in a preset time period;
and when the target time length exceeds the preset time length and the target times exceed the preset times, controlling the liquid cooling charging gun to stop charging.
7. A control device for a liquid-cooled charging gun, comprising:
the acquisition module is used for acquiring the current parameter value of the charging parameter of the liquid cooling charging gun;
the calculation module is used for determining a target flow rate corresponding to the current parameter value of the charging parameter;
and the control module is used for controlling the cooling liquid in the liquid cooling charging gun to circularly flow at the target flow rate so that the working temperature of the liquid cooling charging gun does not exceed the preset temperature.
8. A controller comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the method of controlling a liquid cooled charging gun according to any one of claims 1 to 6.
9. A charging pile comprising the controller of claim 8.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method of controlling a liquid-cooled charging gun according to any one of the preceding claims 1 to 6.
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