CN115431810A - Current control method and device, electronic equipment and storage medium - Google Patents
Current control method and device, electronic equipment and storage medium Download PDFInfo
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- CN115431810A CN115431810A CN202211323522.6A CN202211323522A CN115431810A CN 115431810 A CN115431810 A CN 115431810A CN 202211323522 A CN202211323522 A CN 202211323522A CN 115431810 A CN115431810 A CN 115431810A
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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
- B60L53/60—Monitoring or controlling charging stations
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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
- B60L53/60—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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- Y—GENERAL 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The disclosure relates to the technical field of electrical control of charging equipment, in particular to a current control method, which comprises the following steps: acquiring temperature information and charging times of first electronic equipment and required current of second electronic equipment, wherein the first electronic equipment is used for charging the second electronic equipment; normalizing the temperature information to obtain a temperature coefficient; and determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current. The influence of the charging times and the temperature on the service life of the equipment is comprehensively considered, and the output current is accurately controlled through the temperature information and the charging times, so that the output current does not exceed the bearing capacity of the equipment, the reliability of the equipment in the working process is improved, the aging speed of the equipment is delayed, and the service life is prolonged.
Description
Technical Field
The present invention relates to the field of electrical control technologies for charging devices, and in particular, to a current control method and apparatus, an electronic device, and a storage medium.
Background
The rapid development of new energy technology brings huge thrust to the development of charging equipment. The charging equipment is used as an important match of the electric automobile, and effectively supports the high-speed development of the new energy automobile industry in China. During the operation of the charging device, the charging device bears the function of large current output, so the reliability is very important for the charging device. The service life of the charging device is closely related to the plugging times of the charging device besides the output current. In the process of plugging and unplugging the charging equipment, the abrasion and the aging of the joint of the charging equipment can be brought. In order to ensure the reliability of the charging device, a mode of adding a temperature sensor inside the charging device is generally adopted in the related art, when the internal temperature of the charging device is detected to be too high, the charging control device stops charging in time, and the charging device is prevented from being damaged due to the too high temperature. Although the service life attenuation of the charging equipment can be slowed down to a certain degree, the control strategy only works when the charging equipment bears large current to cause the temperature to exceed the standard, and at the moment, the charging equipment is damaged to a certain degree. How to adopt a better control strategy to prevent the charging equipment from bearing overhigh charging current is the root of improving the service life of the charging equipment.
Disclosure of Invention
In order to solve at least one technical problem, the present disclosure provides a current control method, an apparatus, an electronic device, and a storage medium.
In one aspect, the present disclosure provides a current control method, including:
acquiring temperature information and charging times of first electronic equipment and required current of second electronic equipment, wherein the first electronic equipment is used for charging the second electronic equipment;
normalizing the temperature information to obtain a temperature coefficient;
and determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current.
In an alternative embodiment, determining the output current of the first electronic device based on the temperature coefficient, the number of charges, and the required current includes:
carrying out normalization processing on the charging times to obtain a normalized value of the charging times;
determining a temperature weight and a charging frequency weight;
obtaining a charging life coefficient according to the temperature coefficient, the charging times, the temperature weight and the charging times weight, wherein the sum of the temperature weight and the charging times weight is one;
and obtaining the output current according to the charging life coefficient and the required current.
In an optional embodiment, the normalizing the number of times of charging to obtain a normalized value of the number of times of charging includes:
determining a normalized value of the charging times and the maximum charging times of the first electronic equipment;
according to the charging times normalization calibration value and the maximum charging times, determining a charging times normalization curve;
and determining a charging number normalization value corresponding to the charging number based on the charging number normalization curve.
In an optional embodiment, the temperature information includes at least two temperature sampling values, and the normalizing the temperature information to obtain the temperature coefficient includes:
determining two adjacent temperature sampling values and a temperature sampling period in the at least two temperature sampling values, wherein the two adjacent temperature sampling values represent the two temperature sampling values with the latest sampling time in the temperature information;
obtaining a temperature change rate according to the temperature sampling values and the temperature sampling periods of two adjacent times;
normalizing the temperature change rate to obtain a normalized value of the temperature change rate;
normalizing the target temperature sampling value to obtain a temperature normalization value, wherein the target temperature sampling value represents the primary temperature sampling value with the latest sampling time in the temperature information;
and obtaining the temperature coefficient according to the temperature change rate normalization value and the temperature normalization value.
In an optional embodiment, normalizing the temperature change rate to obtain a normalized value of the temperature change rate includes:
determining a normalized value of the temperature change rate and an upper limit of the temperature change rate of the first electronic device;
according to the temperature change rate normalization calibration value and the temperature change rate upper limit, determining a temperature change rate normalization curve;
and determining a temperature change rate normalization value corresponding to the temperature change rate based on the temperature change rate normalization curve.
In an optional embodiment, normalizing the target temperature sampling value to obtain a temperature normalization value includes:
determining a temperature normalization calibration value and an upper temperature limit of the first electronic equipment;
determining a temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit;
and determining a temperature normalization value corresponding to the target temperature sampling value based on the temperature normalization curve.
In a second aspect, the present invention also provides a current control apparatus, comprising:
the acquisition module is used for acquiring temperature information and charging times of first electronic equipment and required current of second electronic equipment, and the first electronic equipment is used for charging the second electronic equipment;
the temperature normalization module is used for performing normalization processing on the temperature information to obtain a temperature coefficient;
and the current determining module is used for determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current.
In a third aspect, the present invention further provides an electronic device, including:
a processor;
a memory for storing processor-executable instructions;
the processor is used for executing instructions to realize the current control method.
In a fourth aspect, the present invention also provides a storage medium, where instructions executed by a processor of an electronic device enable the electronic device to perform the above-described current control method.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
The implementation of the present disclosure has the following beneficial effects:
acquiring temperature information and charging times of first electronic equipment and required current of second electronic equipment, wherein the first electronic equipment is used for charging the second electronic equipment; normalizing the temperature information to obtain a temperature coefficient; and determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current.
The temperature information is normalized, so that the temperature information is normalized; on the basis of processing the temperature information, the evaluation of the charging times on the service life of the equipment is increased, and the influence of the temperature information and the charging times on the service life is comprehensively considered, so that the output current is accurately controlled and does not exceed the actual bearing capacity of the equipment, the reliability of the equipment in the working process is improved, the aging speed of the equipment is delayed, and the service life of the equipment is prolonged.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure and are not to be construed as limiting the disclosure.
FIG. 1 is a schematic illustration of an implementation environment shown in accordance with an exemplary embodiment;
FIG. 2 is a flow chart illustrating a method of current control according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating a method of deriving a temperature coefficient according to an exemplary embodiment;
FIG. 4 is a flow chart illustrating a method of determining an output current according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating one implementation of calculating an output current in accordance with an exemplary embodiment;
FIG. 6 is a graphical illustration of a temperature rate normalization curve shown in accordance with an exemplary embodiment;
FIG. 7 is a schematic diagram illustrating a temperature normalization curve according to an exemplary embodiment;
FIG. 8 is a schematic diagram illustrating a charge number normalization curve according to an exemplary embodiment;
FIG. 9 is a block diagram of a current control device shown in accordance with an exemplary embodiment;
FIG. 10 is a block diagram illustrating an electronic device for current control in accordance with an exemplary embodiment.
Detailed Description
The technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making creative efforts based on the embodiments in the present specification, belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated. The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of a, B, C, and may mean including any one or more elements selected from the group consisting of a, B, and C.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the subject matter of the present disclosure.
In the correlation technique, in order to improve battery charging outfit's life, generally adopt the mode of increasing temperature sensor in battery charging outfit inside, when detecting battery charging outfit inside high temperature, the control equipment that charges can in time stop charging, avoids bringing the damage because of the high temperature to battery charging outfit. Although the service life attenuation of the charging equipment can be slowed down to a certain degree, the control strategy only works when the charging equipment bears large current to cause the temperature to exceed the standard, and at the moment, the charging equipment is damaged to a certain degree.
In order to avoid that the service life of the charging device is better prolonged because the output current exceeds the output current capability corresponding to the service life of the charging device, the embodiment of the disclosure provides a current control method.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating an application environment according to an exemplary embodiment, which may include a server 01 and a terminal 02, as shown in fig. 1.
In an alternative embodiment, the server 01 may be used for the calculation process of the current control method. Specifically, the server 01 may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing basic cloud computing services such as a cloud service, a cloud database, cloud computing, a cloud function, cloud storage, a Network service, cloud communication, a middleware service, a domain name service, a security service, a Content Delivery Network (CDN), a big data and artificial intelligence platform, and the like.
In an alternative embodiment, the terminal 02 may perform the calculation processing in combination with the current control method of the server 01. Specifically, the terminal 02 may include, but is not limited to, a smart phone, a desktop computer, a tablet computer, a notebook computer, a smart speaker, a digital assistant, an Augmented Reality (AR)/Virtual Reality (VR) device, a smart wearable device, and other types of electronic devices. Optionally, the operating system running on the electronic device may include, but is not limited to, an android system, an IOS system, a Linux system, a Windows system, a Unix system, and the like.
For example, temperature information and the number of times of charging of a first electronic device and a required current of a second electronic device are input on the terminal 02, and the server 01 obtains the temperature information and the number of times of charging of the first electronic device on the terminal 02 and the required current of the second electronic device, wherein the first electronic device is used for charging the second electronic device; normalizing the temperature information to obtain a temperature coefficient; determining the output current of the first electronic device according to the temperature coefficient, the charging times and the required current; the output current value is finally transmitted to terminal 02.
In addition, it should be noted that fig. 1 shows only one application environment provided by the present disclosure, and in practical applications, other application environments may also be included.
In the embodiment of the present specification, the server 01 and the terminal 02 may be directly or indirectly connected through a wired or wireless communication method, and the disclosure is not limited herein.
Fig. 2 is a flow chart illustrating a current control method according to an exemplary embodiment, as shown in fig. 2, the current control method including the following:
step S201: the method comprises the steps of obtaining temperature information and charging times of first electronic equipment and required current of second electronic equipment, wherein the first electronic equipment is used for charging the second electronic equipment.
In the embodiment of the present disclosure, the manner of obtaining the temperature information of the first electronic device may be to set a temperature sensor in the first electronic device, and collect the temperature information of the first electronic device in real time; the manner of acquiring the number of times of charging of the first electronic device may be to provide a counter in the first electronic device for recording the number of times of charging at each time of charging. Optionally, the first electronic device may be a charging device such as a charging gun or a charging pile.
Step S202: and carrying out normalization processing on the temperature information to obtain a temperature coefficient.
In the embodiment of the present disclosure, as shown in fig. 3, the normalizing the temperature information to obtain the temperature coefficient includes the following steps:
step S301: and determining two adjacent temperature sampling values and a temperature sampling period in the at least two temperature sampling values, wherein the two adjacent temperature sampling values represent the two temperature sampling values with the latest sampling time in the temperature information.
In the embodiment of the disclosure, two temperature sampling values with the latest sampling time in the temperature information are determined as two adjacent temperature sampling values, and the temperature sampling period is the time interval between the two adjacent temperature sampling values.
Step S302: and obtaining the temperature change rate according to the temperature sampling values and the temperature sampling periods of two adjacent times.
In the embodiment of the disclosure, firstly, the temperature sampling values of two adjacent times are subtracted to obtain a difference value; and dividing the difference value by the temperature sampling period to obtain the temperature change rate. The calculation process is as follows (1):
In the formula (1), tgun1 is the latest temperature sampling value of two adjacent temperature sampling values, tgun2 is the other temperature sampling value of the two adjacent temperature sampling values, ts is the temperature sampling period, and Kt is the temperature change rate.
Step S303: and carrying out normalization processing on the temperature change rate to obtain a temperature change rate normalization value.
In the embodiment of the present disclosure, normalizing the temperature change rate to obtain a normalized value of the temperature change rate includes the following steps:
step S3031: and determining a normalized value of the temperature change rate and an upper limit of the temperature change rate of the first electronic device.
In the embodiment of the disclosure, the normalized value of the temperature change rate is obtained by setting, and the value is preferably 100. The upper limit of the temperature change rate of the first electronic device may be determined according to the change rate of the temperature when the first electronic device is safely used.
Step S3032: and determining a temperature change rate normalization curve according to the temperature change rate normalization calibration value and the temperature change rate upper limit.
In the embodiment of the present disclosure, according to the temperature change rate normalization value and the upper limit of the temperature change rate, the temperature change rate normalization curve may be determined by taking the temperature change rate as an x-axis abscissa, taking the temperature change rate normalization value as a y-axis ordinate to establish an x-y coordinate system, determining a coordinate point corresponding to the upper limit of the temperature change rate on the x-axis, and determining a coordinate point corresponding to the temperature change rate normalization value on the y-axis. And connecting the two coordinate points through a straight line segment, wherein the straight line segment is a temperature change rate normalization curve. Optionally, the temperature change rate normalization curve may be determined according to the temperature change rate normalization value and the upper limit of the temperature change rate, where the temperature change rate normalization value corresponding to the temperature change rate normalization value when the temperature change rate is 0 is calibrated to be 100, and the temperature change rate normalization value corresponding to the upper limit of the temperature change rate normalization value is calibrated to be 0. And obtaining a temperature change rate normalization curve through linear operation.
Step S3033: and determining a temperature change rate normalization value corresponding to the temperature change rate based on the temperature change rate normalization curve.
In the embodiment of the disclosure, based on the temperature change rate normalization curve, a point in the temperature change rate normalization curve corresponding to an abscissa value corresponding to the temperature change rate is determined according to the abscissa value, and an ordinate value of the point is a temperature change rate normalization value corresponding to the temperature change rate.
Based on the above, according to the embodiment of the present disclosure, the corresponding relationship between the temperature change rate and the temperature change rate normalized value can be determined by determining the temperature change rate normalized curve according to the temperature change rate normalized value and the temperature change rate upper limit; through the temperature change rate normalization curve, the temperature change rate normalization value corresponding to the temperature change rate can be rapidly determined, the normalization calculation of the temperature change rate is completed, and the standardization of the temperature change rate value is realized.
Step S304: and normalizing the target temperature sampling value to obtain a temperature normalization value, wherein the target temperature sampling value represents the primary temperature sampling value with the latest sampling time in the temperature information.
In the embodiment of the present disclosure, normalizing the target temperature sampling value to obtain a temperature normalization value includes the following steps:
step S3041: a temperature normalization calibration and an upper temperature limit of the first electronic device are determined.
In the disclosed embodiment, the normalized temperature value is set, and the value is preferably 100. The upper temperature limit of the first electronic device may be a maximum temperature at which the first electronic device is safe to use.
Step S3042: and determining a temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit.
In the embodiment of the disclosure, according to the temperature normalization calibration value and the upper temperature limit, the temperature normalization curve may be determined by establishing an x-y coordinate system with the temperature as an x-axis abscissa and the temperature normalization value as a y-axis ordinate, determining a coordinate point corresponding to the upper temperature limit on the x-axis, determining a coordinate point corresponding to the temperature normalization calibration value on the y-axis, and connecting the two coordinate points through a straight line segment, where the straight line segment is the temperature normalization curve. Optionally, the temperature normalization curve may be determined according to the temperature normalization calibration value and the upper temperature limit, where the temperature normalization value corresponding to the temperature of 0 is calibrated to 100, and the temperature normalization value corresponding to the upper temperature limit is calibrated to 0. And obtaining a temperature normalization curve through linear operation.
Step S3043: and determining a temperature normalization value corresponding to the target temperature sampling value based on the temperature normalization curve.
In the embodiment of the disclosure, based on the temperature normalization curve, a point in the temperature normalization curve corresponding to an abscissa value corresponding to the target temperature sampling value is determined according to the abscissa value, and an ordinate value of the point is a temperature normalization value corresponding to the target temperature sampling value.
Based on the above, in the embodiment of the present disclosure, the corresponding relationship between the temperature and the temperature normalization value can be determined by determining the temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit; through the temperature normalization curve, the temperature normalization value corresponding to the temperature can be quickly determined, the normalization calculation of the temperature is completed, and the standardization of the temperature value is realized.
Step S305: and obtaining the temperature coefficient according to the temperature change rate normalization value and the temperature normalization value.
In the embodiment of the disclosure, the temperature coefficient is obtained by multiplying the temperature change rate normalization value by the temperature normalization value. The calculation process is as follows (2):
kgun = KtK TgunK formula (2)
In the formula (2), ktK is a temperature change rate normalization value, tgunK is a temperature normalization value, kgun is a temperature coefficient, and Kgun is a temperature coefficient.
Based on the above, the embodiment of the disclosure can realize accurate calculation of the temperature change rate by calculating and processing the adjacent temperature sampling values and the temperature sampling period; the temperature change rate and the target temperature sampling value are respectively subjected to normalization processing, so that the temperature change rate and the target temperature sampling value are subjected to standardized calculation; the temperature coefficient obtained through the temperature change rate normalization value and the temperature normalization value can effectively measure the influence of the temperature factors on the service life of the equipment.
Step S203: and determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current.
In the embodiment of the present disclosure, as shown in fig. 4, determining the output current of the first electronic device according to the temperature coefficient, the number of times of charging, and the required current includes the following:
step S401: and carrying out normalization processing on the charging times to obtain a normalized value of the charging times.
In the embodiment of the present disclosure, the normalizing the number of times of charging is performed to obtain a normalized value of the number of times of charging, which includes the following steps:
step S4011: and determining the normalized value of the charging times and the maximum charging times of the first electronic equipment.
In the embodiment of the present disclosure, the normalized value of the number of charging times is obtained by setting, and the value is preferably 100. The maximum number of times of charging of the first electronic device may be a maximum number of times of charging that the first electronic device can safely be used.
Step S4012: and determining a charging frequency normalization curve according to the charging frequency normalization calibration value and the maximum charging frequency.
In the embodiment of the present disclosure, the root charging number normalization value and the maximum charging number are determined, the charging number normalization curve may be determined by taking the charging number as an x-axis abscissa and taking the charging number normalization value as a y-axis ordinate to establish an x-y coordinate system, determining a coordinate point corresponding to the maximum charging number on the x-axis, determining a coordinate point corresponding to the charging number normalization value on the y-axis, and connecting the two coordinate points through a straight line segment, where the straight line segment is the charging number normalization curve. Optionally, the charging number normalization curve may be determined according to the charging number normalization value and the maximum charging number, where a charging number normalization value corresponding to the charging number of 0 is calibrated to be 100, and a charging number normalization value corresponding to the maximum charging number is calibrated to be 0. And obtaining a charging frequency normalization curve through linear operation.
Step S4013: and determining a charging number normalization value corresponding to the charging number based on the charging number normalization curve.
In the embodiment of the present disclosure, based on the charging number normalization curve, a point in the charging number normalization curve corresponding to an abscissa value corresponding to the charging number is determined according to the abscissa value, and a ordinate value of the point is a charging number normalization value corresponding to the charging number.
Based on the above, in the embodiment of the present disclosure, the corresponding relationship between the charging times and the normalized charging times value can be determined by determining the normalized charging times curve according to the normalized charging times value and the maximum charging times value; through the charging times normalization curve, the charging times normalization value corresponding to the charging times can be quickly determined, the normalization calculation of the charging times is completed, and the standardization of the charging times is realized.
Step S402: and determining the temperature weight and the charging times weight.
In the embodiment of the disclosure, the value range of the temperature weight is any value in [0,100% ], and the value is preferably 70%; the charging number weight is preferably 30% in any value within the range of [0,100% ].
Step S403: and obtaining a charging life coefficient according to the temperature coefficient, the charging times, the temperature weight and the charging times weight, wherein the sum of the temperature weight and the charging times weight is one.
In the embodiment of the disclosure, the temperature coefficient is multiplied by the temperature weight, the charging frequency is multiplied by the charging frequency weight, and the products of the two multiplications are added to obtain the charging life coefficient. Wherein, the sum of the temperature weight and the charging number weight must be 1. The calculation process is as follows (3):
In the formula (3), kgun is a temperature coefficient, cntK is a normalized value of the charging frequency, KKt is a temperature weight, nt is a frequency weight, and Lgun is a charging life coefficient.
Step S404: and obtaining the output current according to the charging life coefficient and the required current.
In the embodiment of the present disclosure, the output current is obtained by multiplying the charge life coefficient by the required current. The calculation process is as follows (4):
ireal = Iref Lgun formula (4)
In the equation (4), iref is the required current, lgun is the charge lifetime coefficient, and Ireal is the output current.
Based on the above, the normalization value of the charging times is obtained by performing normalization processing on the charging times, so that the standardization of the charging times is realized; by determining the temperature weight and the charging frequency weight, the proportion of the temperature and charging frequency factors in the charging life coefficient calculation process can be determined; the charging life coefficient is obtained by calculating and processing the temperature coefficient, the charging frequency, the temperature weight and the charging frequency weight, and the influence of the temperature and the charging frequency on the service life is comprehensively considered; according to the output current obtained by the charging life coefficient and the required current, the reliability of the operation of the equipment is guaranteed, and the service life of the equipment is further prolonged.
In the above embodiment, the influence of the charging frequency of the charging device on the service life is fully considered, the influence of the charging frequency of the charging device on the current output is calculated, the coefficient of the output current of the charging device is adjusted by combining the temperature and the temperature change rate, the output current of the charging device is effectively inhibited, the output current capability that the charging output current exceeds the corresponding service life of the charging device is fundamentally avoided, the service life of the charging device is effectively prolonged on the premise that the function of the charging device is normal, the reliability of the operating process of the charging device is improved, and the method has the significance of common popularization.
In a specific implementation manner, the implementation process of the technical solution in the example of the present application is shown in fig. 5, and specifically includes the following steps:
a temperature sensor is arranged in the charging gun, and the temperature information of the charging gun is acquired in real time; and through setting up the counter, record the number of times of charging at each time of charging.
And carrying out normalization processing on the temperature information to obtain a temperature coefficient.
The implementation process comprises the following steps: and determining two adjacent temperature sampling values and a temperature sampling period in the at least two temperature sampling values, wherein the two adjacent temperature sampling values refer to the two temperature sampling values with the latest sampling time in the temperature information.
And obtaining the temperature change rate according to the temperature sampling values and the temperature sampling periods of two adjacent times.
The implementation process comprises the following steps: firstly, subtracting two adjacent temperature sampling values to obtain a difference value; and dividing the difference value by the temperature sampling period to obtain the temperature change rate. The calculation process is as follows:
in the formula, tgun1 is the latest temperature sampling value of two adjacent temperature sampling values, tgun2 is the other temperature sampling value of the two adjacent temperature sampling values, ts is the temperature sampling period, and Kt is the temperature change rate.
And carrying out normalization processing on the temperature change rate to obtain a temperature change rate normalization value.
The implementation process comprises the following steps: and determining a normalized value of the temperature change rate and an upper limit of the temperature change rate of the charging gun. The normalized value of the rate of temperature change is set to 100. And the upper limit of the temperature change rate of the charging gun is determined according to the change rate of the temperature when the charging gun is safely used. And determining a temperature change rate normalization curve according to the temperature change rate normalization calibration value and the temperature change rate upper limit. As shown in fig. 6, an x-y coordinate system is established with the temperature change rate as an x-axis abscissa and the temperature change rate normalization value as a y-axis ordinate, a coordinate point corresponding to the upper limit of the temperature change rate is determined on the x-axis, a coordinate point corresponding to the temperature change rate normalization value is determined on the y-axis, and the two coordinate points are connected by a straight line segment, which is a temperature change rate normalization curve. And determining a point corresponding to the abscissa value in the temperature change rate normalization curve according to the abscissa value corresponding to the temperature change rate based on the temperature change rate normalization curve, wherein the ordinate value of the point is the temperature change rate normalization value corresponding to the temperature change rate.
Based on the above, according to the embodiment of the present disclosure, the corresponding relationship between the temperature change rate and the normalized value of the temperature change rate can be determined by determining the temperature change rate normalization curve according to the normalized value of the temperature change rate and the upper limit of the temperature change rate; through the temperature change rate normalization curve, the temperature change rate normalization value corresponding to the temperature change rate can be quickly determined, the normalization calculation of the temperature change rate is completed, and the standardization of the temperature change rate value is realized.
And normalizing the target temperature sampling value to obtain a temperature normalization value, wherein the target temperature sampling value represents the primary temperature sampling value with the latest sampling time in the temperature information.
The implementation process comprises the following steps: and determining a temperature normalization calibration value and an upper temperature limit of the charging gun. The normalized temperature is set to a value of 100. The upper temperature limit of the charging gun is the highest temperature at which the charging gun is safely used. And determining a temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit. As shown in fig. 7, an x-y coordinate system is established with the temperature as an x-axis abscissa and the temperature normalization value as a y-axis ordinate, a coordinate point corresponding to the upper temperature limit is determined on the x-axis, a coordinate point corresponding to the temperature normalization value is determined on the y-axis, and the two coordinate points are connected by a straight-line segment, which is a temperature normalization curve. And based on the temperature normalization curve, determining a point corresponding to the abscissa value in the temperature normalization curve according to the abscissa value corresponding to the target temperature sampling value, wherein the ordinate value of the point is the temperature normalization value corresponding to the target temperature sampling value.
Based on the above, according to the temperature normalization calibration value and the temperature upper limit, the corresponding relationship between the temperature and the temperature normalization value can be determined by determining the temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit; through the temperature normalization curve, the temperature normalization value corresponding to the temperature can be quickly determined, the normalization calculation of the temperature is completed, and the standardization of the temperature value is realized.
And obtaining the temperature coefficient according to the temperature change rate normalization value and the temperature normalization value.
The implementation process comprises the following steps: and multiplying the temperature change rate normalization value and the temperature normalization value to obtain the temperature coefficient. The calculation process is as follows:
Kgun=KtK * TgunK
in the formula, ktK is a temperature change rate normalization value, tgunK is a temperature normalization value, kgun is a temperature coefficient, and Kgun is a temperature coefficient.
Based on the above, the embodiment of the disclosure can realize accurate calculation of the temperature change rate by calculating and processing the adjacent temperature sampling values and the temperature sampling period; the temperature change rate and the target temperature sampling value are respectively subjected to normalization processing, so that the temperature change rate and the target temperature sampling value are subjected to standardized calculation; the temperature coefficient obtained through the temperature change rate normalization value and the temperature normalization value can effectively measure the influence of temperature factors on the service life of equipment.
And determining the output current of the charging gun according to the temperature coefficient, the charging times and the required current.
The implementation process comprises the following steps: and carrying out normalization processing on the charging times to obtain a normalized value of the charging times. And determining a normalized value of the charging times and the maximum charging times of the charging gun. The normalized value of the number of times of charging is set to 100. The maximum number of charging times of the charging gun may be a maximum number of charging times that the charging gun can safely be used. And determining a charging frequency normalization curve according to the charging frequency normalization calibration value and the maximum charging frequency. As shown in fig. 8, an x-y coordinate system is established with the charging times as an x-axis abscissa and the charging times normalization value as a y-axis ordinate, a coordinate point corresponding to the maximum charging times is determined on the x-axis, a coordinate point corresponding to the charging times normalization value is determined on the y-axis, and the two coordinate points are connected by a straight line segment, which is a charging times normalization curve. And based on the charging time normalization curve, determining a point corresponding to the abscissa value in the charging time normalization curve according to the abscissa value corresponding to the charging time, wherein the ordinate value of the point is the charging time normalization value corresponding to the charging time.
Based on the above, according to the embodiment of the present disclosure, the corresponding relationship between the charging times and the normalized value of the charging times can be determined by normalizing the curve of the charging times determined according to the normalized value of the charging times and the maximum charging times; through the charging times normalization curve, the charging times normalization value corresponding to the charging times can be quickly determined, the normalization calculation of the charging times is completed, and the standardization of the charging times is realized.
And determining the temperature weight and the charging times weight.
The implementation process comprises the following steps: the temperature weight is set to 70%, the charging number weight is set to 30%, and the sum of the temperature weight and the charging number weight is 1.
And obtaining the charging life coefficient according to the temperature coefficient, the charging times, the temperature weight and the charging times weight.
The implementation process comprises the following steps: and multiplying the temperature coefficient by the temperature weight, multiplying the charging times by the charging time weight, and adding products of the two times of multiplication to obtain the charging life coefficient. The calculation process is as follows:
in the formula, kgun is a temperature coefficient, cntK is a normalized value of the charging times, KKt is a temperature weight, nt is a time weight, and Lgun is a charging life coefficient.
And obtaining the output current according to the charging life coefficient and the required current.
The implementation process comprises the following steps: and multiplying the charging life coefficient by the required current to obtain the output current. The calculation process is as follows:
Ireal=Iref * Lgun
where Iref is the demand current, lgun is the charge lifetime coefficient, and Ireal is the output current.
Based on the above, the normalization value of the charging times is obtained by performing normalization processing on the charging times, so that the standardization of the charging times is realized; by determining the temperature weight and the charging frequency weight, the proportion of the temperature and charging frequency factors in the charging life coefficient calculation process can be determined; the charging life coefficient is obtained by calculating and processing the temperature coefficient, the charging frequency, the temperature weight and the charging frequency weight, and the influence of the temperature and the charging frequency on the service life is comprehensively considered; according to the output current obtained by the charging life coefficient and the required current, the reliability of the operation of the equipment is guaranteed, and the service life of the equipment is further prolonged.
Fig. 9 is a block diagram illustrating a current control apparatus according to an exemplary embodiment, and referring to fig. 9, the apparatus includes an acquisition module 801, a temperature normalization module 802, and a current determination module 803, wherein,
an obtaining module 801, configured to obtain temperature information and charging times of a first electronic device and a required current of a second electronic device, where the first electronic device is configured to charge the second electronic device;
a temperature normalization module 802, configured to perform normalization processing on the temperature information to obtain a temperature coefficient;
and a current determining module 803, configured to determine an output current of the first electronic device according to the temperature coefficient, the number of times of charging, and the required current.
In an alternative embodiment, the current determining module 803 includes:
the charging time normalization value module is used for carrying out normalization processing on the charging times to obtain a charging time normalization value;
the weight module is used for determining the weight of the temperature and the weight of the charging times;
the charging life coefficient module is used for obtaining a charging life coefficient according to the temperature coefficient, the charging times, the temperature weight and the charging times weight, and the sum of the temperature weight and the charging times weight is one;
and the current determination submodule is used for obtaining output current according to the charging life coefficient and the required current.
In an optional embodiment, the module for normalizing the number of charging times includes:
the first determining module is used for determining a normalized value of the charging times and the maximum charging times of the first electronic equipment;
the charging time normalization curve module is used for determining a charging time normalization curve according to the charging time normalization calibration value and the maximum charging time;
and the charging time normalization value submodule is used for determining a charging time normalization value corresponding to the charging time based on the charging time normalization curve.
In an alternative embodiment, the temperature information includes at least two temperature sampling values, and the temperature normalization module 802 includes:
the second determining module is used for determining two adjacent temperature sampling values and a temperature sampling period in the at least two temperature sampling values, wherein the two adjacent temperature sampling values represent the two temperature sampling values with the latest sampling time in the temperature information;
the temperature change rate module is used for obtaining the temperature change rate according to the temperature sampling values and the temperature sampling periods of two adjacent times;
the temperature change rate normalization value module is used for carrying out normalization processing on the temperature change rate to obtain a temperature change rate normalization value;
the temperature normalization value module is used for carrying out normalization processing on the target temperature sampling value to obtain a temperature normalization value, and the target temperature sampling value represents the primary temperature sampling value with the latest sampling time in the temperature information;
and the temperature coefficient module is used for obtaining the temperature coefficient according to the temperature change rate normalization value and the temperature normalization value.
In an alternative embodiment, the normalizing the temperature change rate includes:
the third determining module is used for determining the temperature change rate normalization value and the temperature change rate upper limit of the first electronic equipment;
the temperature change rate normalization curve module is used for determining a temperature change rate normalization curve according to the temperature change rate normalization calibration value and the temperature change rate upper limit;
and the temperature change rate normalization value submodule is used for determining a temperature change rate normalization value corresponding to the temperature change rate based on the temperature change rate normalization curve.
In an optional embodiment, the temperature normalization module includes:
the fourth determining module is used for determining a temperature normalization calibration value and a temperature upper limit of the first electronic equipment;
the temperature normalization curve module is used for determining a temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit;
and the temperature normalization value submodule is used for determining a temperature normalization value corresponding to the target temperature sampling value based on the temperature normalization curve.
With regard to the apparatus in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.
In an exemplary embodiment, there is also provided an electronic device including: a processor; a memory for storing the processor-executable instructions; wherein the processor is used for the instructions to implement the current control method as in the embodiments of the present disclosure.
Fig. 9 is a block diagram illustrating an electronic device for current control, which may be a terminal, according to an exemplary embodiment, and an internal structure thereof may be as shown in fig. 10. The electronic device comprises a processor, a memory, a network interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the electronic device is configured to provide computing and control capabilities. The memory of the electronic equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program to run on the non-volatile storage medium. The network interface of the electronic device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a current control method. The display screen of the electronic equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the electronic equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the electronic equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 10 is merely a block diagram of some of the structures associated with the disclosed aspects and does not constitute a limitation on the electronic devices to which the disclosed aspects apply, as a particular electronic device may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
In an exemplary embodiment, there is also provided a storage medium having instructions that, when executed by a processor of an electronic device, enable the electronic device to perform a current control method in an embodiment of the present disclosure.
In an exemplary embodiment, there is also provided a computer program product containing instructions which, when run on a computer, cause the computer to perform the current control method in the embodiments of the present disclosure.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases or other media used in the embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM), among others.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (9)
1. A method of current control, the method comprising:
acquiring temperature information and charging times of first electronic equipment and required current of second electronic equipment, wherein the first electronic equipment is used for charging the second electronic equipment;
normalizing the temperature information to obtain a temperature coefficient;
and determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current.
2. The method of claim 1, wherein determining the output current of the first electronic device based on the temperature coefficient, the number of charges, and the demand current comprises:
carrying out normalization processing on the charging times to obtain a normalized value of the charging times;
determining a temperature weight and a charging frequency weight;
obtaining a charging life coefficient according to the temperature coefficient, the charging times, the temperature weight and the charging times weight, wherein the sum of the temperature weight and the charging times weight is one;
and obtaining the output current according to the charging life coefficient and the required current.
3. The method according to claim 2, wherein the normalizing the number of times of charging to obtain a normalized value of the number of times of charging includes:
determining a normalized value of the charging times and the maximum charging times of the first electronic equipment;
determining a charging time normalization curve according to the charging time normalization calibration value and the maximum charging time;
and determining the charging times normalization value corresponding to the charging times based on the charging times normalization curve.
4. The method of claim 1, wherein the temperature information comprises at least two temperature samples, and wherein normalizing the temperature information to obtain a temperature coefficient comprises:
determining two adjacent temperature sampling values and a temperature sampling period in the at least two temperature sampling values, wherein the two adjacent temperature sampling values represent the two temperature sampling values with the latest sampling time in the temperature information;
obtaining a temperature change rate according to the two adjacent temperature sampling values and the temperature sampling period;
normalizing the temperature change rate to obtain a temperature change rate normalization value;
normalizing a target temperature sampling value to obtain a temperature normalization value, wherein the target temperature sampling value represents a primary temperature sampling value with the latest sampling time in the temperature information;
and obtaining the temperature coefficient according to the temperature change rate normalization value and the temperature normalization value.
5. The method of claim 4, wherein normalizing the temperature change rate to obtain a normalized temperature change rate value comprises:
determining a normalized value of the temperature change rate and an upper limit of the temperature change rate of the first electronic device;
determining a temperature change rate normalization curve according to the temperature change rate normalization calibration value and the temperature change rate upper limit;
and determining the temperature change rate normalization value corresponding to the temperature change rate based on the temperature change rate normalization curve.
6. The method of claim 4, wherein normalizing the target temperature sample value to obtain a temperature normalization value comprises:
determining a temperature normalization calibration value and an upper temperature limit of the first electronic device;
determining a temperature normalization curve according to the temperature normalization calibration value and the temperature upper limit;
and determining the temperature normalization value corresponding to the target temperature sampling value based on the temperature normalization curve.
7. A current control device, the device comprising:
the system comprises an acquisition module, a charging module and a control module, wherein the acquisition module is used for acquiring temperature information and charging times of first electronic equipment and required current of second electronic equipment, and the first electronic equipment is used for charging the second electronic equipment;
the temperature normalization module is used for performing normalization processing on the temperature information to obtain a temperature coefficient;
and the current determining module is used for determining the output current of the first electronic equipment according to the temperature coefficient, the charging times and the required current.
8. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
wherein the processor is for the instructions to implement the current control method of any one of claims 1 to 6.
9. A storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the current control method of any one of claims 1 to 6.
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