CN106953138B - A kind of power battery water chiller system and its temperature difference intelligent control method - Google Patents
A kind of power battery water chiller system and its temperature difference intelligent control method Download PDFInfo
- Publication number
- CN106953138B CN106953138B CN201710330957.6A CN201710330957A CN106953138B CN 106953138 B CN106953138 B CN 106953138B CN 201710330957 A CN201710330957 A CN 201710330957A CN 106953138 B CN106953138 B CN 106953138B
- Authority
- CN
- China
- Prior art keywords
- temperature
- temperature difference
- battery
- water
- revolving speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01M10/613—Cooling or keeping cold
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
- H01M10/65—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
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Secondary Cells (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Disclosed by the invention is a kind of power battery water chiller system and its temperature difference intelligent control method, including water chiller and water chiller controller, water chiller includes compressor, pressure switch, condenser, condenser fan, liquid storage drying chamber, expansion valve, plate heat exchanger, ptc heater, triple valve, inflow temperature sensor, power battery cabinet, leaving water temperature sensors, water tank, electronic water pump, compressor, pressure switch, condenser, condenser fan, liquid storage drying chamber, expansion valve, plate heat exchanger series connection setting.The present invention not only improves the degree of automation of power battery water chiller control, and the control system, according to the difference for judging battery mean temperature Yu water chiller leaving water temperature, pass through intelligent control algorithm, real-time adaptive adjusts compressor, electronic water pump and condenser fan working speed, it indirectly controls, battery work is integrated by ampere-hour in optimum temperature range and the temperature difference range and predicts battery temperature tendency in advance.
Description
Technical field
The present invention relates to the application field of new-energy automobile power battery technology, more specifically a kind of power electric
The cold machine set system of water and its temperature difference intelligent control method.
Background technique
During electric automobile during traveling, complicated chemical reaction occurs in charge and discharge for power battery, is easy in battery
The a large amount of heat of inner accumulation, causes battery temperature to rise, and the battery performances index such as transfer efficiency, cycle life is caused to decline,
And traditional power battery cooling system uses natural air cooled and water cooling, and high-power power battery is all made of water-cooling project.
In the control of traditional power battery water chiller, generally controlled using shoulder rotation, by set temperature and battery temperature
Compare, when battery temperature is higher than setting cryogenic temperature, water chiller starts to freeze, compressor, electronic water pump and condenser fan
It is operated with fixed rotating speed；When battery temperature is lower than setting cryogenic temperature, compressor, electronic water pump and condenser fan stop working,
The variation of such loop control battery temperature.This control method is simple, but often has the disadvantage in that
One, compressor, electronic water pump and condenser fan frequent starting and stopping, easily causing the inside battery temperature difference larger,
Temperature equalization is poor, and does not give full play to the frequency conversion effect of compressor, leads to the reduction of product service life, vehicle hundred is public
In power consumption increase, to influence vehicle service performance.
Two, after water chiller stops working, water pump stops working immediately, causes cooling line temperature too low, is unable to get
Circulating cooling causes refrigeration device to be easily damaged.
Summary of the invention
Disclosed by the invention is a kind of power battery water chiller system and its temperature difference intelligent control method, main purpose
It is to overcome deficiencies of the prior art and disadvantage, a kind of temperature difference intelligent control side of battery water cooling unit system system is provided
Method, it not only effectively improves the degree of automation of power battery water chiller control, but also the control system can be according to judgement
The difference of battery mean temperature and water chiller leaving water temperature, by intelligent control algorithm, real-time adaptive adjustment compression is mechanical, electrical
Sub- water pump and condenser fan working speed, so that power battery work is indirectly controlled in optimum temperature range and the temperature difference range,
And battery temperature tendency is predicted by ampere-hour integral in advance, the sluggishness of temperature acquisition can effectively be solved by increasing modifying factor
Property, the temperature equalization of more efficient control power battery extends power battery service life, and effectively reduces water chiller
Run power consumption.
The technical solution adopted by the invention is as follows:
A kind of power battery water chiller system, the water chiller and water chiller controller, the water chiller packet
Include compressor, pressure switch, condenser, condenser fan, liquid storage drying chamber, expansion valve, plate heat exchanger, ptc heater, threeway
Valve, inflow temperature sensor, power battery cabinet, leaving water temperature sensors, water tank, electronic water pump, the compressor, pressure are opened
Pass, condenser, condenser fan, liquid storage drying chamber, expansion valve, plate heat exchanger series connection setting；The ptc heater, threeway
Valve, inflow temperature sensor, power battery cabinet, leaving water temperature sensors, water tank, electronic water pump series connection setting, and pass through
The triple valve and the plate heat exchanger, which are in parallel, connects setting, and the water chiller controller passes through CAN bus and the water
Cold group establishes data communication connection, which is equipped with a timer, timing cycle W, which sets
There are four operating modes, respectively standby mode, circulation pattern, refrigeration mode and heating mode；
The temperature difference intelligent control method of the power battery water chiller system, comprising the following specific steps
Step 1: after the water chiller low pressure powers on, System self-test fault-free enters standby mode, the compressor,
Electronic water pump and condenser fan stop working；
Step 2: the water chiller controller receives battery cell minimum temperature T1, electricity in the power battery cabinet
The temperature of pond monomer maximum temperature T2 and each battery modules, and a whole set of battery mean temperature T3 is calculated, while the water chiller
Controller acquires the leaving water temperature T4 of the leaving water temperature sensors and the inflow temperature T5 of inflow temperature sensor respectively, calculates
The system temperature difference of battery mean temperature T3 and water chiller leaving water temperature T4 is T6, is set system the temperature difference range [T7, T8], and is drawn
Be divided into level Four temperature difference step, respectively [T7, (3T7+T8)/4), [(3T7+T8)/4, (T7+T8)/2), [(T7+T8)/2, (T7+
4T8)/4), [(T7+4T8)/4, T8]；Target refrigeration opening temperature T9, limit cryogenic temperature T10, target heating unlatching temperature are set
Spend T11, the limit heats temperature T12；
Step 3: when meet power battery mean temperature T3 higher than target refrigeration opening temperature T9 or lower than target heating open
It opens temperature T11 or the battery cell temperature difference is more than setting value, the water chiller enters circulation pattern, and control system opens electronic water
Pump, running speed are initial setting speed n10, control the flow of power battery cooling medium；
Step 4: after entering circulation pattern, when meeting battery mean temperature T3 higher than target refrigeration opening temperature T9, by
Circulation pattern is cut into refrigeration mode；
Step 5: after entering circulation pattern, when meeting battery mean temperature T3 lower than target heating opening temperature T11,
Heating mode is cut by circulation pattern；
Step 6: after entering circulation pattern, when inflow temperature T5 and the leaving water temperature sensing for meeting inflow temperature sensor
It is more than set temperature that the leaving water temperature T4 of device, which reaches battery cell the temperature difference range in set temperature or power battery cabinet, by following
Ring mode is cut into the electronic water pump and condenser fan all runs at high speed；
Step 7: after entering circulation pattern, when meeting, battery dump energy is lower than 30% in power battery cabinet or vehicle is high
When pressure electricity, water chiller jumps out circulation pattern and stops working.
Further, the step 4 refrigeration mode comprising the following specific steps
(1) after entering refrigeration mode, triple valve is closed, then successively opens the condenser fan and compressor, the condensation
The initial launch revolving speed of fan and compressor is respectively n20 and n30；
(2) when system temperature difference T6 meet temperature difference step [T7, (3T7+T8)/4) condition, the compressor is fixed every 10
When period W increase revolving speed, each revolving speed incremental change is 200r/min, until reaching the operation of highest working speed, and condenser fan
It is worked respectively with electronic water pump in moderate rotation operating condition；
(3) when system temperature difference T6 meet temperature difference step [(3T7+T8)/4, (T7+T8)/2) condition, compressor is every 10
Timing cycle W increases compressor rotary speed, and each revolving speed incremental change is 100r/min, until reach the operation of highest working speed, and
Condenser fan and electronic water pump increase speed every 20 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching
Each component highest working speed operation；
(4) when system temperature difference T6 meet temperature difference step [(T7+T8)/2, (T7+4T8)/4) condition, compressor is every 10
Timing cycle W reduces revolving speed, and each revolving speed decrement is 100r/min, until drop to initial launch revolving speed, and condenser fan and
Electronic water pump increases speed every 10 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching each component highest
Working speed operation；
(5) when system temperature difference T6 meets temperature difference step [(T7+4T8)/4, T8] condition, compressor is every 5 timing cycle W
Reducing revolving speed, each revolving speed decrement is 200r/min, until each component initial launch revolving speed is dropped to, and condenser fan and electronics
Water pump increases speed every 10 timing cycle W, and each revolving speed incremental change is 100r/min, until reaching each component highest work
Revolving speed operation；
(6) when the inflow temperature T5 of inflow temperature sensor is lower than limit cryogenic temperature T10, system exits refrigeration mould
Formula, the compressor and condenser fan operation initial speed are respectively to stop working after n30 and n20 continues 20 timing cycles,
System returns to circulation pattern.
Further, the step 5 heating mode comprising the following specific steps
(1) after entering heating mode, triple valve is opened, is then turned on ptc heater, water chiller is added using PTC ceramics
Thermal technology, according to battery thermal management system scheme, it is respectively P1, P2, P3 and P4 that system, which designs four heating powers, and meets P1
> P2 > P3 > P4 > 0；
(2) if system temperature difference T6 meets temperature difference step [(T7+4T8)/4, T8] condition, PTC heating power is P1, electronic water
Pump work is in moderate rotation operating condition；
(3) if system temperature difference T6 meet temperature difference step [(T7+T8)/2, (T7+4T8)/4) condition, PTC heating power is
P2, electronic water pump increase revolving speed every 20 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching highest work
Revolving speed operation；
(4) if system temperature difference T6 meet temperature difference step [(3T7+T8)/4, (T7+T8)/2) condition, PTC heating power is
P3, electronic water pump increase revolving speed every 10 timing cycle W, and each revolving speed incremental change is 100r/min, until reaching most senior engineer
Make revolving speed operation；
(5) if system temperature difference T6 meet temperature difference step [T7, (3T7+T8)/4) condition, PTC heating power is P4, and electronics
Water pump increases revolving speed every 5 timing cycle W, and each revolving speed incremental change is 200r/min, until reaching highest working speed fortune
Row；
(6) if the inflow temperature T5 of inflow temperature sensor is higher than limit heating temperature T12, system exits heating mould
Formula closes ptc heater, closes triple valve, and system returns to circulation pattern.
Further, battery operating current in the water chiller acquisition CAN bus, and calculated using ampere-hour integration method
The current heat exchange capacity of battery predicts battery temperature tendency in advance.
By the above-mentioned description of this invention it is found that compared to the prior art, the present invention has the advantages that
The present invention can not only effectively improve the degree of automation of power battery water chiller control, and the control system
Compressor, electronic water pump and condenser fan working speed can be adaptively adjusted, maintains power battery work in optimum temperature range
Battery temperature tendency is predicted in advance in the temperature difference range, and through ampere-hour integral, and temperature can effectively be solved by increasing modifying factor
The hysteresis of acquisition is spent, the temperature equalization of more efficient control power battery extends power battery service life, and effectively
Reduce water chiller and runs power consumption.
Detailed description of the invention
Fig. 1 is the system architecture diagram of power battery water chiller in invention.
Fig. 2 is water chiller control method schematic diagram.
Fig. 3 is refrigeration mode control method schematic diagram of the present invention.
Fig. 4 is heating mode control method schematic diagram of the present invention.
Specific embodiment
Explanation is with reference to the accompanying drawings to further explain a specific embodiment of the invention.
As shown in Figures 1 to 4, a kind of power battery water chiller system, the water chiller and water chiller controller,
The water chiller includes compressor 1, pressure switch 2, condenser 3, condenser fan 4, liquid storage drying chamber 5, expansion valve 6, board-like
Exchanger 7, ptc heater 8, triple valve 9, inflow temperature sensor 10, power battery cabinet 11, leaving water temperature sensors 12,
Water tank 13, electronic water pump 14, the compressor 1, pressure switch 2, condenser 3, condenser fan 4, liquid storage drying chamber 5, expansion valve
6,7 series connection of plate heat exchanger is arranged；The ptc heater 8, triple valve 9, inflow temperature sensor 10, power battery cabinet
11, leaving water temperature sensors 12, water tank 13,14 series connection of electronic water pump setting, and pass through the triple valve 9 and the board-like friendship
Parallel operation 7, which is in parallel, connects setting, and the water chiller controller is established data communication by CAN bus and the water chiller and connected
It connects, which is equipped with a timer, timing cycle W, which sets there are four operating mode, respectively
Standby mode, circulation pattern, refrigeration mode and heating mode；
The temperature difference intelligent control method of the power battery water chiller system, comprising the following specific steps
Step 1: after the water chiller low pressure powers on, System self-test fault-free enters standby mode, the compressor,
Electronic water pump and condenser fan stop working；
Step 2: the water chiller controller receives battery cell minimum temperature T1, electricity in the power battery cabinet
The temperature of pond monomer maximum temperature T2 and each battery modules, and a whole set of battery mean temperature T3 is calculated, while the water chiller
Controller acquires the leaving water temperature T4 of the leaving water temperature sensors and the inflow temperature T5 of inflow temperature sensor respectively, calculates
The system temperature difference of battery mean temperature T3 and water chiller leaving water temperature T4 is T6, is set system the temperature difference range [T7, T8], and is drawn
Be divided into level Four temperature difference step, respectively [T7, (3T7+T8)/4), [(3T7+T8)/4, (T7+T8)/2), [(T7+T8)/2, (T7+
4T8)/4), [(T7+4T8)/4, T8]；Target refrigeration opening temperature T9, limit cryogenic temperature T10, target heating unlatching temperature are set
Spend T11, the limit heats temperature T12；
Step 3: when meet power battery mean temperature T3 higher than target refrigeration opening temperature T9 or lower than target heating open
It opens temperature T11 or the battery cell temperature difference is more than setting value, the water chiller enters circulation pattern, and control system opens electronic water
Pump, running speed are initial setting speed n10, control the flow of power battery cooling medium；
Step 4: after entering circulation pattern, when meeting battery mean temperature T3 higher than target refrigeration opening temperature T9, by
Circulation pattern is cut into refrigeration mode；
Step 5: after entering circulation pattern, when meeting battery mean temperature T3 lower than target heating opening temperature T11,
Heating mode is cut by circulation pattern；
Step 6: after entering circulation pattern, when inflow temperature T5 and the leaving water temperature sensing for meeting inflow temperature sensor
It is more than set temperature that the leaving water temperature T4 of device, which reaches battery cell the temperature difference range in set temperature or power battery cabinet, by following
Ring mode is cut into the electronic water pump and condenser fan all runs at high speed；
Step 7: after entering circulation pattern, when meeting, battery dump energy is lower than 30% in power battery cabinet or vehicle is high
When pressure electricity, water chiller jumps out circulation pattern and stops working.
Further, the step 4 refrigeration mode comprising the following specific steps
(1) after entering refrigeration mode, triple valve is closed, then successively opens the condenser fan and compressor, the condensation
The initial launch revolving speed of fan and compressor is respectively n20 and n30；
(2) when system temperature difference T6 meet temperature difference step [T7, (3T7+T8)/4) condition, the compressor is fixed every 10
When period W increase revolving speed, each revolving speed incremental change is 200r/min, until reaching the operation of highest working speed, and condenser fan
It is worked respectively with electronic water pump in moderate rotation operating condition；
(3) when system temperature difference T6 meet temperature difference step [(3T7+T8)/4, (T7+T8)/2) condition, compressor is every 10
Timing cycle W increases compressor rotary speed, and each revolving speed incremental change is 100r/min, until reach the operation of highest working speed, and
Condenser fan and electronic water pump increase speed every 20 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching
Each component highest working speed operation；
(4) when system temperature difference T6 meet temperature difference step [(T7+T8)/2, (T7+4T8)/4) condition, compressor is every 10
Timing cycle W reduces revolving speed, and each revolving speed decrement is 100r/min, until drop to initial launch revolving speed, and condenser fan and
Electronic water pump increases speed every 10 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching each component highest
Working speed operation；
(5) when system temperature difference T6 meets temperature difference step [(T7+4T8)/4, T8] condition, compressor is every 5 timing cycle W
Reducing revolving speed, each revolving speed decrement is 200r/min, until each component initial launch revolving speed is dropped to, and condenser fan and electronics
Water pump increases speed every 10 timing cycle W, and each revolving speed incremental change is 100r/min, until reaching each component highest work
Revolving speed operation；
(6) when the inflow temperature T5 of inflow temperature sensor is lower than limit cryogenic temperature T10, system exits refrigeration mould
Formula, the compressor and condenser fan operation initial speed are respectively to stop working after n30 and n20 continues 20 timing cycles,
System returns to circulation pattern.
Further, the step 5 heating mode comprising the following specific steps
(1) after entering heating mode, triple valve is opened, is then turned on ptc heater, water chiller is added using PTC ceramics
Thermal technology, according to battery thermal management system scheme, it is respectively P1, P2, P3 and P4 that system, which designs four heating powers, and meets P1
> P2 > P3 > P4 > 0；
(2) if system temperature difference T6 meets temperature difference step [(T7+4T8)/4, T8] condition, PTC heating power is P1, electronic water
Pump work is in moderate rotation operating condition；
(3) if system temperature difference T6 meet temperature difference step [(T7+T8)/2, (T7+4T8)/4) condition, PTC heating power is
P2, electronic water pump increase revolving speed every 20 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching highest work
Revolving speed operation；
(4) if system temperature difference T6 meet temperature difference step [(3T7+T8)/4, (T7+T8)/2) condition, PTC heating power is
P3, electronic water pump increase revolving speed every 10 timing cycle W, and each revolving speed incremental change is 100r/min, until reaching most senior engineer
Make revolving speed operation；
(5) if system temperature difference T6 meet temperature difference step [T7, (3T7+T8)/4) condition, PTC heating power is P4, and electronics
Water pump increases revolving speed every 5 timing cycle W, and each revolving speed incremental change is 200r/min, until reaching highest working speed fortune
Row；
(6) if the inflow temperature T5 of inflow temperature sensor is higher than limit heating temperature T12, system exits heating mould
Formula closes ptc heater, closes triple valve, and system returns to circulation pattern.
Further, battery operating current in the water chiller acquisition CAN bus, and calculated using ampere-hour integration method
The current heat exchange capacity of battery predicts battery temperature tendency in advance.
The present invention can not only effectively improve the degree of automation of power battery water chiller control, and the control system
Compressor, electronic water pump and condenser fan working speed can be adaptively adjusted, maintains power battery work in optimum temperature range
Battery temperature tendency is predicted in advance in the temperature difference range, and through ampere-hour integral, and temperature can effectively be solved by increasing modifying factor
The hysteresis of acquisition is spent, the temperature equalization of more efficient control power battery extends power battery service life, and effectively
Reduce water chiller and runs power consumption.
The above is only a specific embodiment of the present invention, but design concept of the invention is not limited merely to this, all benefits
The present invention is improved with carrying out unsubstantiality with this design, should be belonged to behavior that violates the scope of protection of the present invention.
Claims (4)
1. a kind of power battery water chiller system, it is characterised in that: including water chiller and water chiller controller, the water
Cold group includes that compressor, pressure switch, condenser, condenser fan, liquid storage drying chamber, expansion valve, plate heat exchanger, PTC add
Hot device, triple valve, inflow temperature sensor, power battery cabinet, leaving water temperature sensors, water tank, electronic water pump, the compression
Machine, pressure switch, condenser, condenser fan, liquid storage drying chamber, expansion valve, plate heat exchanger series connection setting；The PTC adds
Hot device is set with triple valve, inflow temperature sensor, power battery cabinet, leaving water temperature sensors, water tank, electronic water pump series connection
It sets, and is in parallel by the triple valve and the plate heat exchanger and connects setting, the water chiller controller passes through CAN bus
It establishes data communication with the water chiller to connect, which is equipped with a timer, timing cycle W, the water
Cold group is set there are four operating mode, respectively standby mode, circulation pattern, refrigeration mode and heating mode；
The temperature difference intelligent control method of the power battery water chiller system, comprising the following specific steps
Step 1: after the water chiller low pressure powers on, System self-test fault-free enters standby mode, the compressor, electronics
Water pump and condenser fan stop working；
Step 2: the water chiller controller receives battery cell minimum temperature T1, battery list in the power battery cabinet
The temperature of body maximum temperature T2 and each battery modules, and a whole set of battery mean temperature T3 is calculated, while the water chiller controls
Device acquires the leaving water temperature T4 of the leaving water temperature sensors and the inflow temperature T5 of inflow temperature sensor respectively, calculates battery
The system temperature difference of mean temperature T3 and water chiller leaving water temperature T4 is T6, is set system the temperature difference range [T7, T8], and be divided into
Level Four temperature difference step, respectively [T7, (3T7+T8)/4), [(3T7+T8)/4, (T7+T8)/2), [(T7+T8)/2, (T7+
4T8)/4), [(T7+4T8)/4, T8]；Target refrigeration opening temperature T9, limit cryogenic temperature T10, target heating unlatching temperature are set
Spend T11, the limit heats temperature T12；
Step 3: it is higher than target refrigeration opening temperature T9 or warm lower than target heating unlatching when meeting power battery mean temperature T3
It spends T11 or the battery cell temperature difference is more than setting value, the water chiller enters circulation pattern, and control system opens electronic water pump,
Running speed is initial setting speed n10, controls the flow of power battery cooling medium；
Step 4: after entering circulation pattern, when meeting battery mean temperature T3 higher than target refrigeration opening temperature T9, by recycling
Mode is cut into refrigeration mode；
Step 5: after entering circulation pattern, when meeting battery mean temperature T3 lower than target heating opening temperature T11, by following
Ring mode is cut into heating mode；
Step 6: after entering circulation pattern, when the inflow temperature T5's and leaving water temperature sensors for meeting inflow temperature sensor
It is more than set temperature that leaving water temperature T4, which reaches battery cell the temperature difference range in set temperature or power battery cabinet, by cyclic module
Formula is cut into the electronic water pump and condenser fan all runs at high speed；
Step 7: after entering circulation pattern, it is lower than under 30% or vehicle high pressure when meeting battery dump energy in power battery cabinet
When electric, water chiller jumps out circulation pattern and stops working.
2. power battery water chiller system according to claim 1, it is characterised in that: the refrigeration mode of the step 4
Comprising the following specific steps
(1) after entering refrigeration mode, triple valve is closed, then successively opens the condenser fan and compressor, the condenser fan
Initial launch revolving speed with compressor is respectively n20 and n30；
(2) when system temperature difference T6 meet temperature difference step [T7, (3T7+T8)/4) condition, the compressor every 10 timing week
Phase W increases revolving speed, and each revolving speed incremental change is 200r/min, until reach the operation of highest working speed, and condenser fan and electricity
Sub- water pump is worked respectively in moderate rotation operating condition；
(3) when system temperature difference T6 meet temperature difference step [(3T7+T8)/4, (T7+T8)/2) condition, compressor is every 10 timings
Period W increases compressor rotary speed, and each revolving speed incremental change is 100r/min, until reaching the operation of highest working speed, and condenses
Fan and electronic water pump increase speed every 20 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching each portion
The operation of part highest working speed；
(4) when system temperature difference T6 meet temperature difference step [(T7+T8)/2, (T7+4T8)/4) condition, compressor is every 10 timings
Period W reduces revolving speed, and each revolving speed decrement is 100r/min, until initial launch revolving speed is dropped to, and condenser fan and electronics
Water pump increases speed every 10 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching each component highest work
Revolving speed operation；
(5) when system temperature difference T6 meets temperature difference step [(T7+4T8)/4, T8] condition, compressor reduces every 5 timing cycle W
Revolving speed, each revolving speed decrement is 200r/min, until each component initial launch revolving speed is dropped to, and condenser fan and electronic water pump
Increase speed every 10 timing cycle W, each revolving speed incremental change is 100r/min, until reaching each component highest working speed
Operation；
(6) when the inflow temperature T5 of inflow temperature sensor is lower than limit cryogenic temperature T10, system exits refrigeration mode, institute
Stating compressor and condenser fan operation initial speed is respectively to stop working after n30 and n20 continues 20 timing cycles, and system is returned
To circulation pattern.
3. power battery water chiller system according to claim 1, it is characterised in that: the heating mode of the step 5
Comprising the following specific steps
(1) after entering heating mode, triple valve is opened, is then turned on ptc heater, water chiller heats skill using PTC ceramics
Art, according to battery thermal management system scheme, it is respectively P1, P2, P3 and P4 that system, which designs four heating powers, and meets P1 > P2
> P3 > P4 > 0；
(2) if system temperature difference T6 meets temperature difference step [(T7+4T8)/4, T8] condition, PTC heating power is P1, electronic water pump work
Make in moderate rotation operating condition；
(3) if system temperature difference T6 meet temperature difference step [(T7+T8)/2, (T7+4T8)/4) condition, PTC heating power be P2, electricity
Sub- water pump increases revolving speed every 20 timing cycle W, and each revolving speed incremental change is 50r/min, until reaching highest working speed
Operation；
(4) if system temperature difference T6 meet temperature difference step [(3T7+T8)/4, (T7+T8)/2) condition, PTC heating power be P3, electricity
Sub- water pump increases revolving speed every 10 timing cycle W, and each revolving speed incremental change is 100r/min, until reaching highest working speed
Operation；
(5) if system temperature difference T6 meet temperature difference step [T7, (3T7+T8)/4) condition, PTC heating power is P4, and electronic water pump
Increase revolving speed every 5 timing cycle W, each revolving speed incremental change is 200r/min, until reaching the operation of highest working speed；
(6) if the inflow temperature T5 of inflow temperature sensor is higher than limit heating temperature T12, system exits heating mode, closes
Ptc heater is closed, triple valve is closed, system returns to circulation pattern.
4. power battery water chiller system according to claim 1, it is characterised in that: the water chiller acquires CAN
Battery operating current in bus, and the current heat exchange capacity of battery is calculated using ampere-hour integration method, battery is predicted in advance
Temperature tendency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330957.6A CN106953138B (en) | 2017-05-11 | 2017-05-11 | A kind of power battery water chiller system and its temperature difference intelligent control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330957.6A CN106953138B (en) | 2017-05-11 | 2017-05-11 | A kind of power battery water chiller system and its temperature difference intelligent control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106953138A CN106953138A (en) | 2017-07-14 |
| CN106953138B true CN106953138B (en) | 2019-04-05 |
Family
ID=59478836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710330957.6A Active CN106953138B (en) | 2017-05-11 | 2017-05-11 | A kind of power battery water chiller system and its temperature difference intelligent control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106953138B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599636B (en) * | 2017-09-30 | 2021-06-18 | 比亚迪股份有限公司 | Temperature adjusting method and temperature adjusting system for vehicle-mounted battery |
| CN109599637B (en) * | 2017-09-30 | 2021-05-14 | 比亚迪股份有限公司 | Temperature adjusting method and temperature adjusting system for vehicle-mounted battery |
| CN109599618B (en) * | 2017-09-30 | 2021-09-03 | 比亚迪股份有限公司 | Temperature adjusting method and temperature adjusting system for vehicle-mounted battery |
| CN108332463B (en) * | 2018-01-26 | 2021-04-02 | 杭州富春云科技有限公司 | Control method and system of air-conditioning cabinet between batteries of data center |
| CN108376810B (en) * | 2018-02-12 | 2021-02-05 | 威马智慧出行科技（上海）有限公司 | Power battery thermal management method and system |
| CN108448200B (en) * | 2018-02-28 | 2020-09-15 | 中航锂电（洛阳）有限公司 | Cooling method and system of power supply system |
| CN108470964A (en) * | 2018-06-04 | 2018-08-31 | 常熟理工学院 | A kind of new-energy automobile power battery heat management device and its management method |
| CN108808161B (en) * | 2018-06-12 | 2020-10-02 | 深圳市锐钜科技有限公司 | Management control method and device of battery thermal management system of electric bus |
| CN109167105A (en) * | 2018-07-20 | 2019-01-08 | 北京长城华冠汽车科技股份有限公司 | A kind of new energy vehicle tandem heat management system and new-energy automobile |
| CN109631385A (en) * | 2018-12-18 | 2019-04-16 | 郑州大学 | A kind of novel pure electric automobile heat-pump air-conditioning system |
| CN109860947B (en) * | 2019-01-15 | 2021-06-18 | 江苏大学 | Power battery pack variable flow passage active thermal management control method and system |
| FR3102718B1 (en) * | 2019-10-31 | 2022-07-15 | Psa Automobiles Sa | Process for cooling components of a vehicle equipped with an electric motor |
| CN111048851B (en) * | 2019-12-13 | 2021-02-23 | 广州通达汽车电气股份有限公司 | Battery temperature management system control method, device, equipment and storage medium |
| CN111834681A (en) * | 2020-07-22 | 2020-10-27 | 博众精工科技股份有限公司 | Battery cooling control system and control method for charging and replacing power station |
| CN112009234B (en) * | 2020-09-11 | 2021-09-24 | 厦门金龙联合汽车工业有限公司 | Self-adaptive control method for cooling electronic fan of pure electric bus driving system |
| CN112331962B (en) * | 2020-11-04 | 2022-02-01 | 烟台创为新能源科技股份有限公司 | Control method for water pump in battery temperature control system |
| CN112428883A (en) * | 2020-11-13 | 2021-03-02 | 东风汽车集团有限公司 | Heating method and heating system for power battery of electric automobile |
| CN112909374B (en) * | 2021-02-05 | 2024-02-20 | 扬州嘉和新能源科技有限公司 | New energy automobile battery water cooling unit system control method |
| CN113241488B (en) * | 2021-05-06 | 2022-06-24 | 汉宇集团股份有限公司 | Cooling liquid pump assembly for power battery thermal management system and control method thereof |
| CN113488718A (en) * | 2021-06-23 | 2021-10-08 | 东风汽车股份有限公司 | Battery temperature control system of hybrid electric vehicle and control method thereof |
| CN113740757B (en) * | 2021-08-20 | 2024-04-09 | 中国电子科技集团公司第四十三研究所 | Immersed aging system and method for metal fully-sealed power supply module |
| CN113791655B (en) * | 2021-08-23 | 2022-12-02 | 深圳市科陆电子科技股份有限公司 | Temperature difference control method, device and equipment for energy storage system and storage medium |
| CN114221062B (en) * | 2021-12-15 | 2023-01-10 | 西安交通大学 | Electrochemical energy storage system and thermal management method |
| CN114530649B (en) * | 2022-02-24 | 2023-04-21 | 厦门海辰储能科技股份有限公司 | Temperature adjustment method, temperature adjustment system, and computer-readable storage medium |
| CN115832523B (en) * | 2022-12-26 | 2023-10-31 | 江苏振亚制冷空调设备有限公司 | Electric ship power battery energy thermal management system |
| CN116538743B (en) * | 2023-07-06 | 2023-09-12 | 常州博瑞电力自动化设备有限公司 | Control method of water chiller |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004336832A (en) * | 2003-04-30 | 2004-11-25 | Nissan Motor Co Ltd | Temperature controller of battery |
| CN101710759B (en) * | 2009-11-11 | 2011-08-17 | 厦门金龙联合汽车工业有限公司 | Heat management device of electric car and use method thereof |
| CN102252399A (en) * | 2011-05-13 | 2011-11-23 | 珠海铨高机电设备有限公司 | Compressor energy regulating and controlling method of modular cold/hot water unit |
| CN203950890U (en) * | 2014-07-03 | 2014-11-19 | 上海匡信自动化设备有限公司 | The dc-battery cooling system of the cooling use of pure electric automobile battery |
| CN204063659U (en) * | 2014-08-18 | 2014-12-31 | 中国石油集团工程设计有限责任公司 | Electricity drives compressor station water chiller closed circuit cooling system |
| CN205900740U (en) * | 2016-06-24 | 2017-01-18 | 天津三电汽车空调有限公司 | Battery for electric vehicle thermal management system |
-
2017
- 2017-05-11 CN CN201710330957.6A patent/CN106953138B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106953138A (en) | 2017-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106953138B (en) | A kind of power battery water chiller system and its temperature difference intelligent control method | |
| CN107425232B (en) | A kind of power battery water chiller system and its intelligent control method | |
| CN107627875B (en) | Intelligent temperature control system and control method for power battery of electric automobile | |
| CN206558647U (en) | A kind of quick charge stake with cooling system and heating system | |
| CN110329113A (en) | A kind of control method of automobile integrated thermal management system | |
| CN109572486B (en) | Thermal management system and control method for power battery of hybrid electric vehicle | |
| US8932743B2 (en) | Thermal management controls for a vehicle having a rechargeable energy storage system | |
| CN108281735B (en) | Battery heat-insulation system and method for electric automobile | |
| CN110329112B (en) | Comprehensive thermal management system for automobile | |
| CN101963437A (en) | Defrosting control system and control method of refrigerator | |
| CN201803567U (en) | Defrosting control system of refrigerator | |
| CN108808161A (en) | A kind of management control method and its device of electric bus battery thermal management system | |
| CN108470964A (en) | A kind of new-energy automobile power battery heat management device and its management method | |
| CN214378617U (en) | Power battery rapid heating system | |
| WO2021129858A1 (en) | Method for controlling heat exchange integration of battery changing station | |
| CN109103548A (en) | A kind of temperature control system and control method of power battery | |
| CN108253643B (en) | Instant-heating heat-storage heat pump and solar energy coupling hot water system and control method | |
| CN112864490A (en) | Bubbling type power battery thermal management system based on refrigerant gas-liquid two-phase heat exchange | |
| CN210092296U (en) | New energy automobile battery thermal management system | |
| CN210478446U (en) | Integrated thermal management system of hybrid electric vehicle | |
| CN103419596A (en) | Small-size refrigerating and heating device for automobile | |
| CN109631204B (en) | Car as a house/family wind-light-electricity complementary energy storage system and thermal management method thereof | |
| CN107994283A (en) | A kind of new battery temperature intelligence control system | |
| CN209607877U (en) | One kind being based on bicirculating power battery pack heat management system | |
| CN113488718A (en) | Battery temperature control system of hybrid electric vehicle and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |