CN110534844A - A kind of electrical heating method and system of power battery - Google Patents
A kind of electrical heating method and system of power battery Download PDFInfo
- Publication number
- CN110534844A CN110534844A CN201910790054.5A CN201910790054A CN110534844A CN 110534844 A CN110534844 A CN 110534844A CN 201910790054 A CN201910790054 A CN 201910790054A CN 110534844 A CN110534844 A CN 110534844A
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- Prior art keywords
- heating
- temperature
- relay
- power battery
- circuit
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 8
- 238000011897 real-time detection Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
Classifications
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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
-
- 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
-
- 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
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
-
- 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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides the electrical heating method and system of a kind of power battery.It is power battery heating using ptc heater, heating film quick heating, high-efficient, radiation is wide, facilitates battery system and quickly enters optimum working temperature, to improve the charging performance and discharge performance of new energy vehicle at low temperature.
Description
Technical field
The invention belongs to electric vehicle engineering field more particularly to the electrical heating methods and system of a kind of power battery.
Background technique
With the anxiety of the energy and increasingly sharpening for environmental pollution, occurring for electric car will be as the heat of development of automobile
Point.But since batteries of electric automobile low-temperature characteristics is poor, basic 0 DEG C or less can not charge and under low temperature condition discharge capability compared with
Difference, so the electric heating of battery will be helpful to battery system and quickly enter optimum working temperature for electric car.It is existing
Battery heat protocol mostly use liquid heating method, advantage is homogeneous heating, but due to liquid heat up need a process,
Therefore the liquid heating method technical problem slow there are heating speed.
Summary of the invention
In order to solve the above technical problems, the present invention provides the electrical heating method and system of a kind of power battery.In order to draping over one's shoulders
The some aspects of the embodiment of dew have a basic understanding, and simple summary is shown below.The summarized section is not general
It comments, nor to determine key/critical component or describe the protection scope of these embodiments.Its sole purpose is with letter
Some concepts are presented in single form, in this, as the preamble of following detailed description.
The present invention adopts the following technical scheme:
In some alternative embodiments,
The utility model has the advantages that being power battery heating, heating film quick heating, efficiency using ptc heater brought by of the invention
Height, radiation are wide, facilitate battery system and quickly enter optimum working temperature, and heating method is simple and effective, do not influence to charge, from
And improve the charging performance and discharge performance of new energy vehicle at low temperature.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the electrical heating method of power battery of the present invention；
Fig. 2 is a kind of control principle drawing of the electric heating system of power battery of the present invention；
Fig. 3 is a kind of electric heating system schematic diagram of power battery of the present invention.
Specific embodiment
The following description and drawings fully show specific embodiments of the present invention, so that those skilled in the art's energy
Enough practice them.Other embodiments may include structure, logic, it is electrical, process and other change.Implement
Example only represents possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can
With variation.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.
As shown in Figure 1, in some illustrative embodiments, providing a kind of electrical heating method of power battery, comprising:
101: battery management system power-on self-test.Power-on self-test is in order to enter normal charge and discharge process, if without powering on
Self-test process can not then carry out charging heating process.
102: starting charger is closed charge circuit, into charged state, at this point, charger starts to fill for power battery
Electricity.Wherein, charge circuit refers to that charger and power battery are formed by charge circuit.
103: battery management system real-time detection temperature of powered cell.Battery management system is acquired dynamic by temperature sensor
The temperature of power battery.
104: when battery management system detect minimum temperature of power battery be less than or equal to 0 DEG C when, battery management system into
Enter and is locked in heated condition.
105: after battery management system enters heated condition, closure charger and ptc heater are formed by and heat back
Road, charger provide electric energy for ptc heater, and ptc heater start-up operation heated power battery simultaneously switches off charge circuit,
Charger is no longer power battery charging.
After battery management system enters heated condition, battery management system sends charge requirement voltage to charger and is
403.76V, request voltage are executed by ceiling voltage, and demand heated current 8A, heated current 8A are the electric current by charger.
106: when battery management system detects that temperature of powered cell is more than or equal to heating stopping temperature, terminating heating shape
State, and enter charged state.
When outdoor temperature is less than subzero 10 DEG C, it is 5 DEG C that the heating, which stops temperature, when outdoor temperature is more than or equal to subzero
At 10 DEG C, it is 10 DEG C that the heating, which stops temperature,.
107: after battery management system enters charged state, disconnecting heating circuit, i.e. ptc heater is no longer heat up electricity
Pond is closed charge circuit, so that charger continues as power battery charging.
108: after battery management system enters heated condition, timing is begun to warm up, when reaching preset time, alternatively,
If detect that temperature of powered cell is more than or equal to heating stopping temperature before reaching preset time, terminate heated condition,
It disconnects heating circuit and resets heating timing time.
Wherein, preset time is 2 hours.If never temperature is improved to heating in 2 hours and stops temperature,
Heating system failure is determined, without continuing.
As shown in Figures 2 and 3, a kind of electric heating system of power battery is provided, battery heating system uses the heating side PTC
Formula, vehicle heating power 3218W, comprising: the first heating relay S2, the second heating relay S3, charge relay S1, always bear
Relay S4, battery management system, charger and the ptc heater 1 for being heated for power battery 2.
Wherein, charger and power battery 2 form charge circuit, and charger and ptc heater 1 form heating circuit.The
One heating relay S2, the second heating relay S3 are arranged on charge circuit, and total negative relay S4 is arranged on heating circuit,
Charge relay S1 is arranged on charge circuit and heating circuit.
Battery management system includes:
Detection module is used for real-time detection temperature of powered cell；
Heating module, for when detection module detects that minimum temperature of power battery is less than or equal to 0 DEG C, entrance simultaneously to be locked
In heated condition, the first heating of closure relay S2, the second heating relay S3 and charge relay S1, i.e., so that heating circuit
Conducting, begins to warm up power battery, simultaneously switches off total negative relay S4, i.e., disconnects charge circuit；
Charging module, for terminating when detection module detects that temperature of powered cell is more than or equal to heating stopping temperature
Heated condition disconnects the first heating relay S2 and the second heating relay S3, i.e., so that heating circuit disconnects, and enters charging
State, is closed charge relay S1 and total negative relay S4 is started to charge that is, so that charge circuit is connected.
Timing module, for beginning to warm up timing after battery management system enters heated condition, when arrival preset time
When, alternatively, if detecting that temperature of powered cell is more than or equal to heating and stops reaching the preset time foregoing description detection module
Only when temperature, heating timing time is reset and the heating module is notified to terminate heated condition, disconnects heating circuit.
When outdoor temperature is less than subzero 10 DEG C, it is 5 DEG C that the heating, which stops temperature, when outdoor temperature is more than or equal to subzero
At 10 DEG C, it is 10 DEG C that the heating, which stops temperature,.
Preset time is 2 hours.If never improving temperature to heating in 2 hours and stopping temperature, determine
Heating system failure, without continuing.
It should also be appreciated by one skilled in the art that various illustrative logical boxs, mould in conjunction with the embodiments herein description
Electronic hardware, computer software or combinations thereof may be implemented into block, circuit and algorithm steps.In order to clearly demonstrate hardware and
Interchangeability between software surrounds its function to various illustrative components, frame, module, circuit and step above and carries out
It is generally described.Hardware is implemented as this function and is also implemented as software, depends on specific application and to entire
The design constraint that system is applied.Those skilled in the art can be directed to each specific application, be realized in a manner of flexible
Described function, still, this realization decision should not be construed as a departure from the scope of protection of this disclosure.
Claims (8)
1. a kind of electrical heating method of power battery characterized by comprising
Battery management system real-time detection temperature of powered cell, when detecting that minimum temperature of power battery is less than or equal to 0 DEG C, into
Enter and is locked in heated condition；
After the battery management system enters heated condition, closure charger and ptc heater are formed by heating circuit, together
When disconnect the charger and power battery is formed by charge circuit；
When the battery management system detects that temperature of powered cell is more than or equal to heating stopping temperature, terminate heated condition,
The heating circuit is disconnected, and enters charged state, is closed the charge circuit.
2. a kind of electrical heating method of power battery according to claim 1, which is characterized in that when outdoor temperature is less than zero
At lower 10 DEG C, it is 5 DEG C that the heating, which stops temperature, and when outdoor temperature is more than or equal to subzero 10 DEG C, the heating stops temperature
It is 10 DEG C.
3. a kind of electrical heating method of power battery according to claim 2, which is characterized in that further include: when the electricity
After pond management system enters heated condition, timing is begun to warm up, when reaching preset time, alternatively, if described default reaching
When detecting that temperature of powered cell is more than or equal to heating stopping temperature before the time, then terminates heated condition, disconnect the heating
Circuit simultaneously resets heating timing time.
4. a kind of electrical heating method of power battery according to claim 3, which is characterized in that the preset time is 2
Hour.
5. a kind of electric heating system of power battery characterized by comprising battery management system, charger and for being
The ptc heater of power battery heating, the charger and power battery form charge circuit, and the charger adds with the PTC
Hot device forms heating circuit；
Further include: the first heating relay, the second heating relay, charge relay and total negative relay, first heating
Relay, the second heating relay are arranged on the charge circuit, and total negative relay is arranged on the heating circuit,
The charge relay is arranged on the charge circuit and the heating circuit；
The battery management system includes:
Detection module is used for real-time detection temperature of powered cell；
Heating module, for when the detection module detects that minimum temperature of power battery is less than or equal to 0 DEG C, entrance simultaneously to be locked
In heated condition, it is closed the first heating relay, the second heating relay and charge relay, is simultaneously switched off described total negative
Relay；
Charging module, for terminating when the detection module detects that temperature of powered cell is more than or equal to heating stopping temperature
Heated condition disconnects the first heating relay and the second heating relay, and enters charged state, is closed charge relay
And total negative relay.
6. a kind of electric heating system of power battery according to claim 5, which is characterized in that when outdoor temperature is less than zero
At lower 10 DEG C, it is 5 DEG C that the heating, which stops temperature, and when outdoor temperature is more than or equal to subzero 10 DEG C, the heating stops temperature
It is 10 DEG C.
7. a kind of electric heating system of power battery according to claim 6, which is characterized in that further include: timing module,
For beginning to warm up timing after the battery management system enters heated condition, when reaching preset time, alternatively, if
Reach the preset time foregoing description detection module detect temperature of powered cell be more than or equal to heating stop temperature when, will add
Hot timing time resets and the heating module is notified to terminate heated condition, disconnects the heating circuit.
8. a kind of electric heating system of power battery according to claim 7, which is characterized in that the preset time is 2
Hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790054.5A CN110534844A (en) | 2019-08-26 | 2019-08-26 | A kind of electrical heating method and system of power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910790054.5A CN110534844A (en) | 2019-08-26 | 2019-08-26 | A kind of electrical heating method and system of power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110534844A true CN110534844A (en) | 2019-12-03 |
Family
ID=68662885
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910790054.5A Pending CN110534844A (en) | 2019-08-26 | 2019-08-26 | A kind of electrical heating method and system of power battery |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421074A (en) * | 2020-11-20 | 2021-02-26 | 武汉格罗夫氢能汽车有限公司 | Hydrogen vehicle fuel cell thermal insulation system, method, electronic device and storage medium |
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| CN112421074A (en) * | 2020-11-20 | 2021-02-26 | 武汉格罗夫氢能汽车有限公司 | Hydrogen vehicle fuel cell thermal insulation system, method, electronic device and storage medium |
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Application publication date: 20191203 |
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