CN113991216A - Power battery temperature control system, control method and related equipment - Google Patents
Power battery temperature control system, control method and related equipment Download PDFInfo
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- CN113991216A CN113991216A CN202111092587.XA CN202111092587A CN113991216A CN 113991216 A CN113991216 A CN 113991216A CN 202111092587 A CN202111092587 A CN 202111092587A CN 113991216 A CN113991216 A CN 113991216A
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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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- 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 discloses a power battery temperature control system for a hybrid vehicle, which is characterized by comprising the following components: the device comprises a motor, a power battery, a liquid loop, a control device and a temperature detection device. This application detects the temperature of electric motor rotor and body through temperature-detecting device, controlling means changes the operating condition in liquid return circuit according to rotor and the local temperature control that detects, can realize that electric motor rotor and motor body carry out the temperature exchange, guarantee that rotor and body are all in relative best operating temperature, make the motor reach best operating condition, promote the amplitude of high-frequency pulse current between motor and power battery, thereby can realize power battery's rapid heating up, make power battery reach best operating condition.
Description
Technical Field
The specification relates to the field of hybrid electric vehicles, in particular to a power battery temperature control system, a control method and related equipment.
Background
The power battery is a power output source of a whole vehicle, but the charging and discharging characteristics of the power battery are poor at low temperature, so that the power battery needs to be heated and then works, and the heating liquid is generally adopted in the industry to heat the battery so as to improve the temperature rising rate of the battery and realize quick charging and discharging. Conventional liquid heating schemes require heating of the liquid and there is a loss of heat as the liquid flows. In the recently researched technology, high-frequency oscillation current can be generated between the motor and the battery, the battery utilizes the high-frequency oscillation current to perform self-heating, the temperature of the motor can influence the working state of the motor, and when the temperature of the motor is too high or too low, the peak value of the high-frequency oscillation current is reduced, so that the self-heating efficiency of the power battery is influenced.
Therefore, there is a need for a power battery temperature control system that at least partially solves the problems of the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problem, in a first aspect, a power battery temperature control system for a hybrid vehicle, the system comprising:
the device comprises a motor, a power battery, a liquid loop, a control device and a temperature detection device;
the motor is used for heating the power battery by generating high-frequency oscillation current between the motor and the power battery;
the liquid loop is used for connecting a rotor of the motor and a body of the motor so as to exchange heat between the rotor and the body;
the temperature detection device is connected with the motor and is used for detecting the temperature of the rotor and the body;
the control device is used for obtaining the temperature of the rotor and the temperature of the body through the temperature detection device so as to control the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
Optionally, the system further includes a heating device for heating the heat exchange liquid in the liquid loop, and/or a cooling device for cooling the heat exchange liquid in the liquid loop.
Optionally, the system further comprises a vehicle speed detection device.
In a second aspect, the present invention further provides a power battery temperature control method, which is used for a control device in any one of the power battery temperature control systems, and includes:
receiving the temperature of the rotor and the temperature of the body;
and controlling the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
Optionally, the method further includes:
and heating the heat exchange liquid in the liquid loop according to the temperature of the rotor and the temperature of the body.
Optionally, the method further includes:
and cooling the heat exchange liquid in the liquid loop according to the temperature of the rotor and the temperature of the body.
Optionally, the method further comprises:
and judging whether the current vehicle speed is 0 or not, and if so, executing the power battery temperature control method.
In a third aspect, the present invention further provides a power battery temperature control apparatus, including:
a receiving unit for receiving the temperature of the rotor and the temperature of the body;
and a control unit for controlling the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
In a fourth aspect, the present invention further provides an electronic device, including: a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor is configured to implement the steps of the power battery temperature control method according to any one of the second aspect when the computer program stored in the memory is executed.
In a fifth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the power battery temperature control method of any one of the above aspects of the second aspect.
In summary, the power battery temperature control system in the application detects the temperatures of the motor rotor and the body through the temperature detection device, the control device controls and changes the working state of the liquid loop according to the detected temperatures of the rotor and the local temperature, so that the temperature exchange between the motor rotor and the motor body can be realized, the rotor and the body are both at the optimal working temperature, the motor reaches the optimal working state, the amplitude of high-frequency pulse current between the motor and the power battery is increased, the rapid temperature rise of the power battery can be realized, and the power battery reaches the optimal working state.
Additional advantages, objects, and features of the vehicle battery temperature control system of the present invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the specification. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a power battery temperature control system according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of a method for controlling a temperature of a power battery according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another power battery temperature control system provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of a power battery temperature control device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides a power battery temperature control system, a control method and related equipment thereof, wherein a control device controls and changes the working state of a liquid loop according to detected rotor and local temperature, so that temperature exchange between a motor rotor and a motor body can be realized, the rotor and the body are both at the optimal working temperature, the motor reaches the optimal working state, the amplitude of high-frequency pulse current between the motor and the power battery is improved, and therefore the rapid temperature rise of the power battery can be realized, and the power battery reaches the optimal working state.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically 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 apparatus 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. 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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
In some examples, embodiments of the present application provide a power battery temperature control system for a hybrid vehicle, the system comprising:
the device comprises a motor, a power battery, a liquid loop, a control device and a temperature detection device;
the motor 101 is used for heating the power battery 102 by generating high-frequency oscillation current with the power battery 102;
the liquid circuit 103 is configured to connect a rotor 1011 of the motor and a main body 1012 of the motor so that the rotor 1011 and the main body 1012 exchange heat;
the temperature detection device 105 is connected to the motor 101 and detects the temperatures of the rotor 1011 and the main body 1012;
the control device 104 is configured to obtain the temperature of the rotor 1011 and the temperature of the main body 1012 by the temperature detection device 105, and control the operating state of the liquid circuit 103 based on the temperature of the rotor 1011 and the temperature of the main body 1012.
Specifically, when the temperature of the power battery 102 is low, the motor can generate high-frequency oscillation pulse current, and because the internal resistance of the power battery 102 is high under the low-temperature condition, the power battery can rapidly generate a large amount of heat for heating the power battery under the high-frequency oscillation current, so that the power battery is heated to the optimal temperature, the working efficiency of the battery is ensured, and the charging efficiency is improved. The high-frequency oscillating current in the motor 101 and the power battery 102 can also make the motor rapidly heat up, the motor 101 can exert its best working efficiency at a specific temperature, the amplitude of the high-frequency oscillating current is increased to rapidly increase the temperature of the power battery 102, but the rotor 1011 heats up faster and the body 1012 heats up slower when the motor 101 is in the high-frequency oscillating current, the temperature of the rotor 1011 and the temperature of the body 1012 are detected by the temperature detecting device 105, and the control device 104 controls the conducting state of the liquid loop 103 based on the temperature of the rotor 1011 and the temperature of the body 1012, for example: when the temperature of the rotor 1011 is higher than the optimal working temperature and the temperature of the body 1012 is lower than the optimal working temperature, the control device 104 controls the liquid loop 103 to be conducted, and the heat exchange liquid in the liquid loop 103 is used for heating the body 1012 by the heat in the rotor 1011, so that the rotor 1011 can be cooled to the optimal working temperature, the body 1012 can be heated to the optimal working temperature, the motor is in the optimal working state, the amplitude of the high-frequency oscillation pulse current is increased, and the power battery 102 is rapidly heated. In addition, the working efficiency of the motor 101 is reduced when the temperature of the motor 101 is too high or too low, and the power battery can be rapidly heated by controlling the temperature of the motor 101.
In summary, the temperature of the rotor and the body in the motor is detected by the temperature detection device, the control device controls the working state of the liquid loop according to the temperatures of the rotor and the body, so that the rotor and the body of the motor are both at the optimal working temperature, the working efficiency of the motor is improved, the amplitude of the high-frequency oscillation current is improved, the power battery is rapidly heated, the optimal working temperature is rapidly increased, the charging and discharging efficiency is ensured, and the optimal working state is achieved.
In some examples, the system further comprises a heating device for heating the heat-exchange liquid in the liquid circuit and/or a cooling device for cooling the heat-exchange liquid in the liquid circuit.
Specifically, above-mentioned system can also include heating device and/or cooling device, heating device and/or cooling device connect the liquid return circuit, a heat transfer liquid for heating or cooling among the above-mentioned liquid return circuit, when temperature-detecting device detected the high temperature of rotor and body, controlling means can control cooling device work, cooling device makes the liquid cooling of heat transfer liquid, and utilize microthermal coolant liquid to cool down rotor and body, temperature-detecting device can detect the temperature of rotor and body in real time simultaneously, and control the on-state of liquid return circuit, make the rotor and the body of motor reach best operating temperature, guarantee the work efficiency of motor, promote power battery rate of heating. Relatively, when the motor temperature was crossed lowly, heating device can heat the heat transfer liquid in the liquid return circuit, utilizes high temperature heat transfer liquid heating motor, makes the rotor and the body of motor reach best operating temperature, guarantees the work efficiency of motor, promotes power battery heating rate.
In conclusion, the heating device and/or the cooling device heats or cools the liquid loop, so that the motor is ensured to be at the optimal working temperature, the working efficiency of the motor is ensured, the amplitude of the high-frequency oscillation current is improved, and the power battery is rapidly heated.
In some examples, the system further comprises a vehicle speed detection device.
Specifically, the system further comprises a vehicle speed detection device, wherein the vehicle speed detection device is used for detecting the vehicle speed of the vehicle, and when the motor generates high-frequency oscillation current, the high-frequency oscillation current needs to be carried out under the condition that the vehicle is static, so that the rotor and the body are guaranteed to be static relatively. And judging whether the vehicle speed is 0 or not according to the vehicle speed detected by the vehicle speed detection device, and controlling the motor to generate high-frequency oscillation current for heating the power battery if the vehicle speed is 0.
In conclusion, the speed of the vehicle can be obtained through the vehicle speed detection device, when the speed of the vehicle is not 0, the power battery is not heated through the high-frequency oscillating current, the safety of the vehicle is improved, and the damage to components is avoided.
In some examples, the present application further proposes a power battery temperature control method for a control device in the power battery temperature control system of any one of the above, including:
s110, receiving the temperature of the rotor and the temperature of the body;
and S120, controlling the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
Specifically, the control device receives the temperature of the rotor and the temperature of the body detected by the detection device, if the temperature of the rotor is higher than the optimal working temperature, the temperature of the body is lower than the optimal working temperature, the control device controls the liquid loop of the connection body and the rotor to be conducted, heat exchange is carried out on heat exchange liquid in the liquid loop of the rotor and the body, the rotor and the body respectively reach the optimal working temperature, the working efficiency of the motor is improved, the amplitude of high-frequency oscillation current is improved, and the power battery is rapidly heated.
In conclusion, the control device can control the working state of the liquid loop according to the temperatures of the rotor and the body of the motor, so that the temperatures of the rotor and the body are both at the optimal working temperature, the working efficiency of the motor is improved, the amplitude of the high-frequency oscillation current is improved, and the power battery is rapidly heated.
In some examples, the method further comprises:
and heating the heat exchange liquid in the liquid loop according to the temperature of the rotor and the temperature of the body.
Specifically, when the temperature of the rotor and the temperature of the body are both lower than the optimal working temperature, the control device can control the heating device to work, heat exchange liquid in the liquid loop is heated, the high-temperature heat exchange liquid heats the rotor and the body of the motor and enables the rotor and the body to be heated to the optimal working temperature, and meanwhile, the control device can also control the conduction state of the liquid loop and reasonably distribute heat of the high-temperature heat exchange liquid in the liquid loop.
In conclusion, when the temperature of the rotor and the temperature of the body are both lower than the optimal working temperature, the control device can control the heating device to work and control the conduction state of the liquid loop, so that the temperature of the rotor and the temperature of the body reach the optimal working temperature, the working efficiency of the motor is improved, the amplitude of the high-frequency oscillation current is improved, and the motor is rapidly heated.
In some examples, the method further comprises:
and cooling the heat exchange liquid in the liquid loop according to the temperature of the rotor and the temperature of the body.
Specifically, when the temperature of the rotor and the body temperature are both higher than the optimal working temperature, the control device can control the cooling device to work, cool the heat exchange liquid in the liquid loop, cool the rotor and the body of the motor by the low-temperature heat exchange liquid and cool the rotor and the body to the optimal working temperature, and meanwhile, the control device can also control the conduction state of the liquid loop and reasonably distribute the heat of the low-temperature heat exchange liquid in the liquid loop.
In conclusion, when the temperature of the rotor and the temperature of the body are higher than the optimal working temperature, the control device can control the cooling device to work and control the conduction state of the liquid loop, so that the temperature of the rotor and the temperature of the body reach the optimal working temperature, the working efficiency of the motor is improved, the amplitude of the high-frequency oscillation current is improved, and the motor is rapidly heated.
In some examples, the method further comprises, prior to:
and judging whether the current vehicle speed is 0 or not, and if so, executing the power battery temperature control method.
Specifically, the premise of heating the battery based on the high-frequency oscillation current in the present application is that the rotor and the body of the motor are relatively static, and by determining whether the vehicle speed is 0, the above-mentioned method for heating the power battery can be performed when the vehicle is static, and it can be ensured that other components of the vehicle, such as the motor, are damaged due to the movement of the vehicle.
In conclusion, whether the vehicle speed is 0 or not can be judged, the power battery can be heated by using the high-frequency oscillation current when the vehicle is stationary, and corresponding component damage caused by vehicle movement is avoided.
In some examples, another power battery temperature control system is also proposed, as shown in fig. 3.
The temperature control system of the power battery comprises a water pump 1106, a motor 101, a three-way pipe 1107, a three-way valve 1108, a three-way pipe 2109, the power battery 102, a water pump 2114, a three-way valve 2113, a heat exchanger 2112, a heat exchanger 1, a PTC110, an evaporator 115, an expansion valve 116, a condenser 117 and a compressor 118, wherein the PTC110 and the heat exchanger 1111 form a PTC loop for heating liquid in a liquid loop, the evaporator 115, the expansion valve 116, the condenser 117 and the compressor 118 form a refrigerant loop, and heat exchange with the heat exchanger 2112 can be realized through the operation of the refrigerant loop for cooling heat exchange liquid in the liquid loop. In the embodiment, 6 working modes can be realized, the working states of key components in all working modes are shown in table 1, six modes including normal heating of a power battery in the mode 1, normal cooling of a power battery in the mode 2, self heating of a motor in the mode 3, quick heating of a motor in the mode 4, utilization of waste heat of a motor in the mode 5 and quick cooling of a motor in the mode 6 are realized, the normal cooling and heating functions of the battery can be realized, high-frequency oscillation current generated between the motor and the power battery can be used for self-heating of the power battery, and waste heat of the motor can be used for heating a low-temperature battery, so that energy consumption is reduced.
TABLE 1 working states of key components of temperature control system of power battery in different working modes
One, mode 1 normal heating of the battery
The PTC loop works normally, heat exchange liquid of the liquid loop is heated continuously, and heat exchange is carried out between the heat exchanger 1111 and the heat exchange liquid of the battery loop; mode 1 the flow direction of the coolant is: heat exchanger 1111 → heat exchanger 2112 → three-way valve 2113 (BO flow direction) → water pump 2114 → power battery 102 → three-way pipe 2109 → three-way valve 1108 (OB flow direction) → three-way pipe 1107 → heat exchanger 1. The PTC loop heats the heat exchange liquid in the liquid loop, so that the purpose of heating the battery is achieved.
Second, mode 2 Battery Normal Cooling
The refrigerant circuit works, the compressor 118 works, the heat exchange liquid in the refrigerant circuit is continuously cooled, heat is radiated to the air in the condenser 117, the heat of the heat exchanger 2112 is absorbed at the evaporator 115, heat exchange is carried out between the heat exchange liquid and the heat exchange liquid in the liquid circuit where the power battery is located, and the temperature of the heat exchange liquid in the liquid circuit is reduced. Mode 2 the heat exchange liquid flow direction in the liquid circuit is: heat exchanger 1111 → heat exchanger 2112 → three-way valve 2113 (BO flow direction) → water pump 2114 → power battery 102 → three-way pipe 2109 → three-way valve 1108 (OB flow direction) → three-way pipe 1107 → heat exchanger 1. The heat exchange liquid in the liquid loop is cooled by the heat exchange between the refrigerant loop and the heat exchanger 2, so that the aim of cooling the battery is fulfilled.
Mode 3 motor self-heating
Under the low temperature environment, the performance of the motor is low, the battery is self-heated, the motor is required to exert the best performance, the high-frequency oscillation current is generated through the motor, the power battery utilizes the high-frequency oscillation current to realize self-heating, the motor is required to be heated, the best performance of the motor is exerted as soon as possible, the maximum heating effect of the battery self-heating is exerted, the rotor temperature of the motor is generally higher than the best working temperature under the high-frequency oscillation current, the body temperature is generally lower than the best temperature, heat exchange is carried out by the rotor and the body under the condition, the rotor temperature and the body temperature of the battery can be both at the best temperature, the working efficiency of the motor is improved, the amplitude of the high-frequency oscillation current is improved, and the fast self-heating of the power battery is realized. The flowing direction of the self-heating heat exchange liquid of the mode 3 motor is as follows: water pump 1106 → t-branch 1107 → three-way valve 1108 (BO flow direction) → t-branch 2109 → motor 101 → water pump 1106 (circulation). The motor is under the high frequency oscillation current, and the electric motor rotor intensifies soon, through the liquid return circuit between rotor and the body, realizes the heat exchange between rotor and the body, and the rotor that makes and the body all reach best operating temperature, promotes battery self-heating efficiency.
Four, mode 4 motor fast heating
Under the condition of very low temperature, the PTC loop is controlled to work, the motor is heated through the high-temperature heat exchange liquid, so that the motor quickly reaches the optimal working temperature, the maximum working efficiency of the motor is exerted, the amplitude of high-frequency oscillation current is improved, and the maximum heating effect of battery self-heating is achieved. Mode 4 the flow direction of the quick heating heat exchange liquid of the motor is as follows: water pump 1106 → three-way pipe 1107 → heat exchanger 1111 → heat exchanger 2112 → three-way valve 2113 (flow in BA) → three-way valve 1108 (flow in AO) → three-way pipe 2109 → motor 101 → water pump 1106 (circulation). When the temperature of the motor is extremely low, the purpose of rapid temperature rise is realized by utilizing self heating of the motor and PTC heating, the temperature of the motor is raised as soon as possible, the optimal performance of the motor is exerted, and the optimal effect of self-heating of the battery is achieved.
Fifth, mode 5 motor waste heat utilization
When power battery utilizes high frequency oscillation pulse current to carry out self-heating, the motor also improves based on high frequency oscillation pulse current self temperature, when it is higher than best operating temperature, the work efficiency of motor reduces, high frequency oscillation current's amplitude reduces, battery self-heating efficiency reduces thereupon, the unnecessary heat of usable motor this moment heats the battery through liquid return circuit, reduces the motor temperature simultaneously, promotes the work efficiency of motor, the flow direction of heat transfer liquid is under this mode: water pump 1106 → three-way pipe 1107 → heat exchanger 1111 → heat exchanger 2112 → three-way valve 2113 (BO flow direction) → water pump 2114 → power battery 102 → three-way pipe 2109 → motor 101 → water pump 1106 (circulation). Can cool down the motor through this mode, make it reach the highest work efficiency, usable its heat heats power battery simultaneously.
Sixth, mode 6 quick cooling of motor
When the temperature of motor was too high, the motor waste heat utilization mode that utilizes mode 5 was not enough to reduce the temperature of motor, and the refrigerant return circuit works and cools off the heat-transfer liquid in the liquid circuit that the motor belongs to this moment to cool off the motor, the flow direction of heat-transfer liquid is: water pump 1106 → three-way pipe 1107 → heat exchanger 1111 → heat exchanger 2112 → three-way valve 2 (flow in BA) → three-way valve 1108 (flow in AO) → three-way pipe 2109 → motor 101 → water pump 1106 (circulation). The mode can realize quick cooling of the motor, so that the motor reaches the optimal working temperature, the maximum working efficiency is exerted, and the power battery can be quickly and automatically heated.
Through the power battery temperature control system that this embodiment provided, can adopt from above-mentioned 6 power battery temperature control modes to select suitable mode to carry out temperature control to power battery to the operating mode of difference, can make full use of heat, the energy saving to make power battery reach optimum operating temperature rapidly.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a temperature control device for a power battery according to an embodiment of the present disclosure
In some examples, the present invention also provides a power battery temperature control apparatus, including:
a receiving unit 21 for receiving the temperature of the rotor and the temperature of the body;
and a control unit 22 for controlling the operating state of the liquid circuit according to the temperature of the rotor and the temperature of the body.
Referring to fig. 5, fig. 5 is a schematic view of an embodiment of an electronic device according to an embodiment of the present disclosure.
As shown in fig. 5, the embodiment of the present application further provides an electronic device 300, which includes a memory 310, a processor 320, and a computer program 311 stored on the memory 320 and executable on the processor, wherein when the processor 320 executes the computer program 311, the steps of any one of the methods for controlling the battery temperature are implemented.
Since the electronic device described in this embodiment is a device for implementing a vehicle control unit in this embodiment, based on the method described in this embodiment, a person skilled in the art can understand a specific implementation manner of the electronic device of this embodiment and various modifications thereof, so that how to implement the method in this embodiment by the electronic device is not described in detail herein, and as long as the person skilled in the art implements the device used in this embodiment, the scope of the present application is intended to be protected.
In a specific implementation, the computer program 311 may implement any of the embodiments corresponding to fig. 4 when executed by a processor.
It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Embodiments of the present application further provide a computer program product, where the computer program product includes computer software instructions, and when the computer software instructions are run on a processing device, the processing device is caused to execute the flow in the power battery temperature control method in the corresponding embodiment of fig. 2.
The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A power battery temperature control system for a hybrid vehicle, characterized by comprising: the device comprises a motor, a power battery, a liquid loop, a control device and a temperature detection device;
the motor is used for heating the power battery by generating high-frequency oscillation current with the power battery;
the liquid loop is used for connecting a rotor of the motor and a body of the motor so as to enable the rotor and the body to exchange heat;
the temperature detection device is connected with the motor and is used for detecting the temperatures of the rotor and the body;
the control device is used for obtaining the temperature of the rotor and the temperature of the body through the temperature detection device so as to control the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
2. The power cell temperature control system of claim 1, further comprising a heating device for heating the heat-exchange fluid in the fluid circuit and/or a cooling device for cooling the heat-exchange fluid in the fluid circuit.
3. The power battery temperature control system according to claim 1 or 2, characterized in that the system further comprises vehicle speed detection means.
4. A power battery temperature control method for a control device in a power battery temperature control system according to any one of claims 1 to 3, comprising:
receiving a temperature of the rotor and a temperature of the body;
and controlling the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
5. The method of claim 4, wherein the method further comprises:
and heating the heat exchange liquid in the liquid loop according to the temperature of the rotor and the temperature of the body.
6. The method of claim 4, wherein the method further comprises:
cooling the heat exchange fluid in the fluid circuit based on the temperature of the rotor and the temperature of the body.
7. The method of claim 4, wherein the method is preceded by:
and judging whether the current vehicle speed is 0, and if so, executing the power battery temperature control method.
8. A power battery temperature control device, characterized by comprising:
a receiving unit for receiving the temperature of the rotor and the temperature of the body;
and the control unit is used for controlling the working state of the liquid loop according to the temperature of the rotor and the temperature of the body.
9. An electronic device comprising a memory, a processor, wherein the processor is configured to implement the steps of the power cell temperature control method according to any one of claims 4-7 when executing a computer program stored in the memory.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program when executed by a processor implements the steps of the power cell temperature control method according to any of claims 4-7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111092587.XA CN113991216A (en) | 2021-09-17 | 2021-09-17 | Power battery temperature control system, control method and related equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111092587.XA CN113991216A (en) | 2021-09-17 | 2021-09-17 | Power battery temperature control system, control method and related equipment |
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| CN109029746A (en) * | 2017-06-08 | 2018-12-18 | 舍弗勒技术股份两合公司 | Hybrid power module, controller and temperature monitoring system |
| CN112392756A (en) * | 2020-11-20 | 2021-02-23 | 北京理工大学 | Test measurement and control device for electrically-driven centrifugal compressor supercharging system |
| CN113085516A (en) * | 2021-04-30 | 2021-07-09 | 重庆长安新能源汽车科技有限公司 | Power battery pulse heating system and heating method of electric automobile |
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- 2021-09-17 CN CN202111092587.XA patent/CN113991216A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109029746A (en) * | 2017-06-08 | 2018-12-18 | 舍弗勒技术股份两合公司 | Hybrid power module, controller and temperature monitoring system |
| CN112392756A (en) * | 2020-11-20 | 2021-02-23 | 北京理工大学 | Test measurement and control device for electrically-driven centrifugal compressor supercharging system |
| CN113085516A (en) * | 2021-04-30 | 2021-07-09 | 重庆长安新能源汽车科技有限公司 | Power battery pulse heating system and heating method of electric automobile |
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