CN111370812B - Battery heating control method, device and system and storage medium - Google Patents
Battery heating control method, device and system and storage medium Download PDFInfo
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- CN111370812B CN111370812B CN202010107006.4A CN202010107006A CN111370812B CN 111370812 B CN111370812 B CN 111370812B CN 202010107006 A CN202010107006 A CN 202010107006A CN 111370812 B CN111370812 B CN 111370812B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention relates to the technical field of battery heating, and discloses a battery heating control method, which comprises the following steps: determining the type of the battery heating equipment; determining a heating state of a passenger compartment; determining a determining mode of the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment; obtaining a proportional valve opening value according to the determining mode of the proportional valve opening value; heating the battery according to the opening value of the proportional valve. The battery heating control method provided by the invention has the characteristic of good heating stability.
Description
Technical Field
The invention relates to the technical field of battery heating, in particular to a battery heating control method, device and system and a storage medium.
Background
With the global warming and the frequent occurrence of extreme climate, energy conservation, emission reduction and environmental protection become common recognitions for people, and the new energy automobile industry also becomes a focus of attention.
In the new energy automobile industry, batteries are widely concerned as core parts of new energy automobiles, in the prior art, the batteries of the new energy automobiles are mostly lithium batteries, however, the lithium batteries can keep a high-efficiency working state at a constant temperature, otherwise, the battery conversion efficiency is low, especially when the batteries are in a low-temperature environment, the available power of the batteries is greatly limited, the charging and discharging performance is reduced, and the development of the new energy automobiles is greatly limited.
In most new energy vehicles, when a battery is heated, a switch valve is usually adopted to realize the opening and closing of a heating function when engine hot water or a heater is used for heating. The on-off valve only has an on-off function and cannot control the flow of heated water, so that the situation of insufficient or overhigh heating temperature of the battery is easy to occur, and the water temperature at a water inlet of the battery cannot be kept constant; under extreme circumstances, can lead to the inside highest minimum temperature phase difference of battery great even, the reason is that battery water inlet temperature can rise extremely high temperature very fast, for example 38 degrees centigrade or even higher back module of being heated can heat up fast, and the module of be difficult to be heated intensifies slowly, makes to form great difference in temperature between the module, leads to that the battery available power is low and the battery is short-lived.
Disclosure of Invention
The invention aims to solve the technical problem of poor heating stability of the battery.
In order to solve the above technical problem, the present application discloses in a first aspect a battery heating control method, including:
determining the type of the battery heating equipment;
determining a heating state of a passenger compartment;
determining a determining mode of the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment;
obtaining a proportional valve opening value according to the determining mode of the proportional valve opening value;
heating the battery according to the opening value of the proportional valve.
Optionally, the battery heating apparatus category includes an engine and a heater;
the heating state of the passenger compartment comprises heating and non-heating;
the determining mode of the opening degree value of the proportional valve comprises a first determining mode, a second determining mode, a third determining mode and a fourth determining mode.
Optionally, the determining the proportional valve opening value according to the type of the battery heating apparatus and the heating state of the passenger compartment, and obtaining the proportional valve opening value according to the determining of the proportional valve opening value includes:
if the battery heating device is an engine and the passenger compartment is heating, determining the first determination mode according to the actual temperature of the water inlet of the first battery, the highest temperature in the first battery and the lowest temperature in the first battery;
and obtaining the opening value of the proportional valve according to the first determination mode.
Optionally, the determining the proportional valve opening value according to the type of the battery heating apparatus and the heating state of the passenger compartment, and obtaining the proportional valve opening value according to the determining of the proportional valve opening value includes:
if the battery heating device is an engine and the passenger compartment is not heating, determining the second determination mode according to the actual temperature of the water inlet of the second battery, the highest temperature in the second battery and the lowest temperature in the second battery;
and obtaining the opening value of the proportional valve according to the second determination mode.
Optionally, the determining the proportional valve opening value according to the type of the battery heating apparatus and the heating state of the passenger compartment, and obtaining the proportional valve opening value according to the determining of the proportional valve opening value includes:
if the battery heating equipment is a heater and the passenger compartment is in heating, determining the third determination mode according to the water temperature required by the heating of the passenger compartment, the water temperature required by the battery heating and the actual water temperature of a water outlet of the heater;
and obtaining the opening value of the proportional valve according to the third determination mode.
Optionally, the proportional valve opening value is a ratio of the first result to the second result;
the first result is the difference between the water temperature needed by the heating of the passenger compartment and the actual water temperature of the water outlet of the heater;
the second result is the difference between the water temperature required by the battery heating and the actual water temperature at the water outlet of the heater;
and the opening value of the proportional valve is greater than or equal to 20%.
Optionally, the determining the proportional valve opening value according to the type of the battery heating apparatus and the heating state of the passenger compartment, and obtaining the proportional valve opening value according to the determining of the proportional valve opening value includes:
if the battery heating equipment is a heater and the passenger cabin is not heating, obtaining the opening value of the proportional valve according to the fourth determination mode; wherein, the fourth determination mode is to turn on the electronic heating water pump, and the opening value of the proportional valve is 100%.
The application discloses in a second aspect a battery heating device comprising an equipment determining module, a heating state determining module, a mode determining module, a proportional valve opening value determining module and an opening module;
the equipment determining module is used for determining the type of the battery heating equipment;
the heating state determining module is used for determining the heating state of the passenger compartment;
the mode determining module is used for determining the determining mode of the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment;
the proportional valve opening value determining module is used for obtaining a proportional valve opening value according to a determining mode of the proportional valve opening value;
the opening module is used for heating the battery according to the opening value of the proportional valve.
The present application discloses in a third aspect a battery heating control system comprising a heater, a heat exchanger and the above battery heating means;
the heater is used for providing a heating source for the battery;
the heat exchanger is used for transferring the temperature of the heater to the battery so as to heat the battery.
The present application discloses in a fourth aspect a computer storage medium having at least one instruction or at least one program stored therein, the at least one instruction or at least one program being loaded and executed by a processor to implement the above battery heating control method.
By adopting the technical scheme, the battery heating control method provided by the application has the following beneficial effects:
determining the type of the battery heating equipment; determining a heating state of a passenger compartment; determining a determining mode of the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment; obtaining a proportional valve opening value according to the determining mode of the proportional valve opening value; the battery is heated according to the opening value of the proportional valve, so that the heating stability of the battery can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a battery heating control method of the present application;
FIG. 2 is a flow chart of a battery heating control method in a first alternative implementation of an embodiment of the present application;
FIG. 3 is a flow chart of a battery heating control method in a second alternative implementation of an embodiment of the present application;
FIG. 4 is a flowchart of a battery heating control method according to a third alternative embodiment of the example of the present application;
FIG. 5 is a flowchart of a battery heating control method according to a fourth alternative embodiment of the example of the present application;
fig. 6 is a schematic structural diagram of a battery heating apparatus according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a battery heating control system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like 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 application described herein are capable of operation in sequences other than those illustrated or described herein.
As shown in fig. 1, fig. 1 is a flow chart of a battery heating control method according to the present application; the present application discloses in a first aspect a battery heating control method, comprising:
s101, determining the type of battery heating equipment;
s102, determining the heating state of the passenger compartment;
s103, determining a determining mode of the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment;
s104, obtaining a proportional valve opening value according to the determining mode of the proportional valve opening value;
and S105, heating the battery according to the opening value of the proportional valve.
The heating of the battery by the above method has the advantage of high heating stability.
In an alternative embodiment, in step S101, the battery heating apparatus includes an engine and a Heater, specifically, the engine heats the battery by using water in the engine, and the Heater is a High pressure water Heater (HVCH) or a Positive Temperature Coefficient (PTC) Heater;
the passenger compartment heating state may include heating and non-heating at step S102;
the determination manner of the opening value of the proportional valve in step S103 may include a first determination manner, a second determination manner, a third determination manner, and a fourth determination manner. The following description will be made in detail based on the above-described kind of the battery heating apparatus, the heating state of the passenger compartment, and the determination manner.
Specifically, as shown in fig. 2, fig. 2 is a flowchart of a battery heating control method in a first alternative implementation manner in the example of the present application; in this embodiment, the determining the proportional valve opening degree value according to the battery heating apparatus type and the passenger compartment heating state in step S103, and the obtaining the proportional valve opening degree value according to the determining the proportional valve opening degree value in step S104 may include:
s201: determining the type of the battery heating equipment and the heating state of the passenger compartment, and if the battery heating equipment is an engine and the heating state of the passenger compartment is heating, turning to step S202;
s202: determining the first determination mode according to the actual temperature of the water inlet of the first battery, the highest temperature in the first battery and the lowest temperature in the first battery;
s203: obtaining the opening value of the proportional valve according to the first determination mode;
s204: heating the battery according to the opening value of the proportional valve.
In an alternative embodiment, when the battery heating apparatus is an engine and the passenger compartment is being warmed, the first determination means obtains a first proportional valve opening F1 from a first battery inlet actual temperature lookup table 1.1, obtains a first proportional valve opening coefficient X1 from a first battery inlet actual temperature lookup table 1.2 and a temperature difference between a highest temperature in the first battery and a lowest temperature in the first battery, and determines the proportional valve opening according to a proportional valve opening calculation formula (1), where formula (1) is expressed as follows:
proportional valve opening value ═ floor (F1 × X1 ÷ 10) ÷ 10 … … equation (1)
In one embodiment, tables 1.1 and 1.2 are as follows:
table 1.1: when the battery heating device is an engine and the passenger compartment is in heating, the relation table of the actual temperature of the first battery water inlet and the opening degree value F1 of the first proportional valve
The data in table 1.1 is actually measured data values for a specific vehicle type, and it should be noted that the data in table 1.1 for different vehicles may vary, but the relation of equation (1) is still true.
Table 1.2: when the battery heating apparatus is an engine and the passenger compartment is in heating, a first proportional valve opening coefficient X1 table in which a temperature difference between a maximum temperature in the first battery and a minimum temperature in the first battery corresponds to an actual temperature at the inlet of the first battery
The data in table 1.2 is actually measured data values in a specific vehicle type, it should be noted that the data in table 1.2 of different vehicles have deviation, but the relational expression of formula (1) is still true, and when the temperature difference in the table is between 0 ℃ to 3 ℃ and 3 ℃ to 5 ℃, linear control is adopted, that is, the first proportional valve opening coefficient X1 is in linear relation with the temperature difference between 0 ℃ to 3 ℃ and 3 ℃ to 5 ℃.
The first proportional valve opening coefficient X1 in table 1.2 is obtained by multiplying the opening of the two tables by a factor according to the difference between the highest temperature in the battery and the lowest temperature in the battery, and has the characteristic of balancing the temperature difference between the battery modules;
in order to more clearly explain the advantageous effects of the present application, taking the opening value of the ratio determined according to the first determination manner as an example, when the actual temperature of the battery water inlet is measured to be 30 ℃, it can be seen from referring to table 1.1 that F1 is 80; when the temperature difference between the maximum temperature in the first battery and the minimum temperature in the first battery is 3 ℃, it can be known from the lookup table 1.2 that X1 is 0.6, and then the required opening value is 80 × 0.6 ═ 48, and since each 10% of the proportional valve is an opening step and 48% is undefined, the proportional valve opening value can be obtained by calculation according to the formula (1) that is (80 × 0.6 ÷ 10) ÷ 10 ÷ 40%), and the adjusted proportional valve opening value of 40% is output to the proportional valve.
In another alternative embodiment, as shown in fig. 3, fig. 3 is a flowchart of a battery heating control method in a second alternative embodiment according to the embodiment of the present application; in this embodiment, the determining the proportional valve opening degree value according to the battery heating apparatus type and the passenger compartment heating state in step S103, and the obtaining the proportional valve opening degree value according to the determining the proportional valve opening degree value in step S104 may include:
s301: determining the type of the battery heating equipment and the heating state of the passenger compartment, and if the battery heating equipment is an engine and the heating state of the passenger compartment is not heating, turning to step S302;
s302: determining the second determination manner according to the actual temperature at the inlet of the second battery, the highest temperature in the second battery, and the lowest temperature in the second battery in the states of step S301 and step S302;
s303: obtaining the opening value of the proportional valve according to the second determination mode;
and S304, heating the battery according to the opening value of the proportional valve.
In an alternative embodiment, when the battery heating apparatus is an engine and the passenger compartment is being warmed, the second determination means obtains a second proportional valve opening degree value F2 from a second battery inlet actual temperature lookup table 2.1, obtains a second proportional valve opening degree coefficient X2 from a second battery inlet actual temperature lookup table 2.2 and a temperature difference between a highest temperature in the second battery and a lowest temperature in the second battery, and determines the proportional valve opening degree value according to a proportional valve opening degree value calculation formula (2), where the formula (2) is expressed as follows:
proportional valve opening value ═ floor (F2 × X2 ÷ 10) ÷ 10 … … equation (2)
In one embodiment, tables 2.1 and 2.2 are as follows:
table 2.1: when the battery heating device is an engine and the passenger compartment is heated, the actual temperature of the first battery water inlet and the opening value F2 of the proportional valve are in a relation table
The data in table 2.1 is actually measured data values for a specific vehicle type, and it should be noted that the data in table 2.1 for different vehicles may vary, but the relation of equation (2) is still true.
Table 2.2: when the battery heating device is an engine and the passenger compartment is in heating, a second proportional valve opening coefficient X2 table corresponding to the actual temperature at the inlet of the second battery and the temperature difference between the highest temperature in the second battery and the lowest temperature in the second battery
The data in table 2.2 is actually measured data values in a specific vehicle type, it should be noted that the data in table 2.2 of different vehicles have deviation, but the relational expression of formula (2) is still true, and when the temperature difference in the table is between 0 ℃ to 3 ℃ and 3 ℃ to 5 ℃, linear control is adopted, that is, the first proportional valve opening coefficient X1 is in linear relation with the temperature difference between 0 ℃ to 3 ℃ and 3 ℃ to 5 ℃.
The first proportional valve opening coefficient X1 in table 2.2 is obtained by multiplying the opening of the two tables by a factor according to the difference between the highest temperature in the battery and the lowest temperature in the battery, and has a feature of balancing the temperature difference between the battery modules.
In order to more clearly explain the advantageous effects of the present application, taking the opening value of the ratio determined according to the second determination manner as an example, when the actual temperature at the water inlet of the second battery is measured to be 30 ℃, F2 is 80% by referring to table 1.2; when the temperature difference between the maximum temperature in the second battery and the minimum temperature in the second battery is 3 ℃, it can be known from the lookup table 2.2 that X2 is 0.8, then the required opening value is 80% × 0.8 is 64%, since each 10% of the proportional valve is an opening step, 64% is not defined, then the proportional valve opening value is calculated by the formula (1) as floor (80% × 0.8 × 10) ÷ 10 is 60%, and the adjusted proportional valve opening value is 60% and is output to the proportional valve.
In another alternative embodiment, as shown in fig. 4, fig. 4 is a flowchart of a battery heating control method in a third alternative embodiment according to the embodiment of the present application; the method for determining the opening degree value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment in the step S103, and the method for determining the opening degree value of the proportional valve according to the opening degree value of the proportional valve in the step S104 comprise the following steps:
s401, determining the type of the battery heating equipment and the heating state of the passenger cabin, and if the battery heating equipment is a heater and the heating state of the passenger cabin is heating, turning to the step S402;
s402, determining the third determination mode according to the water temperature required by heating the passenger compartment, the water temperature required by heating the battery and the actual water temperature of the water outlet of the heater in the states of the step S401 and the step S402;
s403: obtaining the opening value of the proportional valve according to the third determination mode;
s404: heating the battery according to the opening value of the proportional valve.
Specifically, the proportional valve opening value is a ratio of the first result to the second result;
the first result is the difference between the water temperature needed by the heating of the passenger compartment and the actual water temperature of the water outlet of the heater;
the second result is the difference between the water temperature required by the battery heating and the actual water temperature at the water outlet of the heater;
and the opening value of the proportional valve is greater than or equal to 20%, in an optional embodiment, when the temperature in the vehicle rises to 0 ℃, the opening value of the proportional valve is increased by 10% every time the temperature in the vehicle rises by 5 ℃, and the increase value of the opening value of the proportional valve is in a linear relation with the increase value of the temperature in the vehicle, so that the operation process is simplified and the output efficiency is improved under the condition of ensuring the accuracy of battery heating.
In another alternative implementation, as shown in fig. 5, fig. 5 is a flowchart of a battery heating control method in a fourth alternative implementation of an embodiment of the present application; the method for determining the opening degree value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment in the step S103, and the method for determining the opening degree value of the proportional valve according to the opening degree value of the proportional valve in the step S104 comprise the following steps:
s501, determining the type of the battery heating equipment and the heating state of the passenger cabin, and if the battery heating equipment is a heater and the heating state of the passenger cabin is not heating, turning to S502;
s502, determining a fourth determination mode according to the states of the step S501 and the step S502;
s503, obtaining the opening value of the proportional valve according to the fourth determination mode;
s404: heating the battery according to the opening value of the proportional valve.
The fourth determination mode is to start the electronic water heating pump, and the opening value of the proportional valve is 100%, that is, when the battery heating device is a heater and the passenger compartment is not heating, the flow is controlled by the electronic water heating pump to control the battery heating, so that the battery heating control system has the characteristics of simple and effective control and low energy consumption.
Through analyzing the battery heating control method provided by the application, the battery heating control method can provide large heat when the temperature of the battery is lower and the self temperature is urgently required to be improved to enhance the discharging capacity, properly reduce the heat supply when the temperature meets the basic discharging requirement, maintain the temperature range of the battery in the optimal working interval when the temperature of the battery is in the optimal working interval, and gradually reduce the heat supply or even cut off when the temperature exceeds the temperature range of the optimal working interval due to overlarge heat release of the battery under certain working conditions. When the passenger cabin is heated, the opening value of the proportional valve is controlled according to needs to realize flow distribution of hot water, and the temperature of the battery is increased as soon as possible on the premise that the comfort impact on the passenger cabin is as small as possible.
The temperature control of the battery water inlet is more accurate and stable, the temperature difference inside the battery heat management is smaller, and the performance is more reliable.
As shown in fig. 6, fig. 6 is a schematic structural diagram of a battery heating apparatus according to an embodiment of the present disclosure; the present application discloses in a second aspect a battery heating apparatus comprising:
a device determining module 601, configured to determine a type of battery heating device;
a heating state determination module 602, configured to determine a heating state of the passenger compartment;
a mode determining module 603, configured to determine a determining mode of the proportional valve opening according to the type of the battery heating apparatus and the heating state of the passenger compartment;
a proportional valve opening value determining module 604, configured to obtain a proportional valve opening value according to a determination manner of the proportional valve opening value;
an opening module 605 is used for heating the battery according to the proportional valve opening value.
In an optional embodiment, the apparatus further comprises:
the device determining module is used for determining the type of the battery heating device, and the type of the battery heating device comprises an engine and a heater;
the heating state determining module is used for determining the heating state of the passenger compartment, and the heating state of the passenger compartment comprises heating and non-heating;
the mode determining module is used for determining the determining mode of the proportional valve opening value according to the type of the battery heating equipment and the heating state of the passenger compartment, and the determining mode of the proportional valve opening value comprises a first determining mode, a second determining mode, a third determining mode and a fourth determining mode.
In another optional embodiment, the apparatus further comprises:
if the equipment determining module determines that the battery heating equipment is the engine and the heating state determining module determines that the passenger compartment is heating, determining a first determining mode according to the actual temperature of the water inlet of the first battery, the highest temperature in the first battery and the lowest temperature in the first battery;
and obtaining the opening value of the proportional valve according to the first determination mode.
In another optional embodiment, the apparatus further comprises:
if the equipment determining module determines that the battery heating equipment is the engine and the heating state determining module determines that the passenger compartment is not heated, determining the second determining mode according to the actual temperature of the water inlet of the second battery, the highest temperature in the second battery and the lowest temperature in the second battery;
and obtaining the opening value of the proportional valve according to the second determination mode.
In another optional embodiment, the apparatus further comprises:
if the equipment determining module determines that the battery heating equipment is a heater and the heating state determining module determines that the passenger compartment is heating, determining the third determining mode according to the water temperature required by the heating of the passenger compartment, the water temperature required by the heating of the battery and the actual water temperature of a water outlet of the heater;
and obtaining the opening value of the proportional valve according to the third determination mode.
In an optional embodiment, the apparatus further comprises:
the proportional valve opening value obtained by the proportional valve opening value determining module is the ratio of the first result to the second result;
the first result is the difference between the water temperature needed by the heating of the passenger compartment and the actual water temperature of the water outlet of the heater;
the second result is the difference between the water temperature required by the battery heating and the actual water temperature at the water outlet of the heater;
and the opening value of the proportional valve is greater than or equal to 20%.
In an optional embodiment, the apparatus further comprises:
if the equipment determining module determines that the battery heating equipment is a heater and the heating state determining module determines that the passenger compartment is not heated, the opening value of the proportional valve is obtained according to the fourth determining mode; wherein, the fourth determination mode is to turn on the electronic heating water pump, and the opening value of the proportional valve is 100%.
The device and method embodiments in the embodiments of the present application are based on the same application concept.
As shown in fig. 7, fig. 7 is a schematic structural diagram of a battery heating control system according to an embodiment of the present application. The present application discloses in a third aspect a battery heating control system comprising:
a heater for providing a heat source for heating the battery; a heat exchanger for transferring the temperature of the heater to the battery, thereby heating the battery.
The heater is connected with the heat exchanger through a pipeline, the heat exchanger is connected with the battery through a pipeline, the heater is electrically connected with the battery, namely the battery provides electric energy for the heater, and water passing through the heating heater is used for providing a heat source to heat the battery.
The present application discloses in a fourth aspect a computer storage medium having at least one instruction or at least one program stored therein, the at least one instruction or at least one program being loaded and executed by a processor to implement the above battery heating control method.
It should be noted that: the sequence of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting, and any modifications, equivalents, improvements and the like that are made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (6)
1. A battery heating control method, comprising:
determining the type of the battery heating equipment;
determining a heating state of a passenger compartment;
determining a determining mode of a proportional valve opening value according to the type of the battery heating equipment and the heating state of the passenger compartment;
the battery heating equipment category comprises an engine and a heater;
the heating state of the passenger compartment comprises heating and non-heating;
the determining mode of the opening value of the proportional valve comprises a first determining mode, a second determining mode, a third determining mode and a fourth determining mode;
the determining mode for determining the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment comprises the following steps:
if the battery heating equipment is an engine and the passenger compartment is heating, determining the first determination mode according to the actual temperature of a first battery water inlet, the highest temperature in the first battery and the lowest temperature in the first battery;
if the battery heating equipment is an engine and the passenger compartment is not heating, determining the second determination mode according to the actual temperature of a water inlet of the second battery, the highest temperature in the second battery and the lowest temperature in the second battery;
if the battery heating equipment is a heater and the passenger compartment is in heating, determining the third determination mode according to the water temperature required by the heating of the passenger compartment, the water temperature required by the battery heating and the actual water temperature of a water outlet of the heater;
if the battery heating equipment is a heater and the passenger cabin is not heating, obtaining the opening value of the proportional valve according to the fourth determination mode;
obtaining a proportional valve opening value according to the determining mode of the proportional valve opening value;
and heating the battery according to the opening value of the proportional valve.
2. The battery heating control method according to claim 1, wherein the proportional valve opening value is a ratio of a first result to a second result;
the first result is the difference between the water temperature required by heating the passenger compartment and the actual water temperature of the water outlet of the heater;
the second result is the difference between the water temperature required by the battery heating and the actual water temperature of the water outlet of the heater;
and the opening value of the proportional valve is greater than or equal to 20%.
3. The battery heating control method according to claim 1, wherein the fourth determination is that an electronic heating water pump is turned on, and the proportional valve opening value is 100%.
4. A battery heating device, wherein the battery heating device is used for implementing the battery heating control method according to claim 1, and the device comprises an equipment determination module, a heating state determination module, a mode determination module, a proportional valve opening value determination module and an opening module;
the equipment determining module is used for determining the type of the battery heating equipment;
the heating state determining module is used for determining the heating state of the passenger compartment;
the mode determining module is used for determining a determining mode of the opening value of the proportional valve according to the type of the battery heating equipment and the heating state of the passenger compartment;
the proportional valve opening value determining module is used for obtaining a proportional valve opening value according to the determining mode of the proportional valve opening value;
the opening module is used for heating the battery according to the opening value of the proportional valve.
5. A battery heating control system comprising a heater, a heat exchanger and the battery heating apparatus of claim 4;
the heater is used for providing a heating source for the battery;
the heat exchanger is used for transferring the temperature of the heater to the battery so as to heat the battery.
6. A computer storage medium having at least one instruction or at least one program stored therein, the at least one instruction or at least one program being loaded and executed by a processor to implement the battery heating control method according to any one of claims 1 to 3.
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| CN116101013B (en) * | 2021-11-09 | 2024-03-19 | 广州汽车集团股份有限公司 | Control method and system for low-temperature driving thermal management of electric automobile and automobile |
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