CN110450598A - A kind of batteries of electric automobile heat management system and its control method - Google Patents
A kind of batteries of electric automobile heat management system and its control method Download PDFInfo
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- CN110450598A CN110450598A CN201910596263.6A CN201910596263A CN110450598A CN 110450598 A CN110450598 A CN 110450598A CN 201910596263 A CN201910596263 A CN 201910596263A CN 110450598 A CN110450598 A CN 110450598A
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- battery
- threeway
- cooling
- vcu
- compressor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2221—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating an intermediate liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/008—Arrangement or mounting of electrical propulsion units with means for heating the electrical propulsion units
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Present invention discloses a kind of batteries of electric automobile heat management systems comprising: condenser, fan, evaporator, compressor, solenoid valve A, threeway A, threeway B, heater cores, threeway C, impounding kettle, solenoid valve B, chiller, water pump, threeway D, PTC, triple valve, battery pack, BMS, AC/ panel, VCU.The advantage of the invention is that battery liquid cooling, crew module, which are freezed, shares a compressor, battery heating, crew module's heating share a water and heat PTC, and waterway circulating shares a water pump, and structure is simple, at low cost, are convenient for arrangement.
Description
Technical field
The present invention relates to electric car fields, and in particular to a kind of batteries of electric automobile heat management system.
Background technique
Power battery pack is the critical component of electric car, directly affects as the main energy storage original part in electric car
To the performance of electric car.By the temperature conditions of China each department Various Seasonal, when battery cell temperature is lower than 0 DEG C pair
Lithium battery charging has the risk of battery diaphragm puncture, and short circuit occurs；Battery pack temperature is too low to battery discharge power and capacity
Also it will receive influence, vehicle performance caused to reduce；In addition battery pack temperature is excessively high also influences whether battery cycle life, therefore needs
Battery pack thermal management system is developed.
Summary of the invention
The technical problem to be solved by the present invention is to realize that a kind of batteries of electric automobile heat management system, this system battery are cold
But circulation, battery heat cycles and air-conditioning system share a set of refrigeration, heating device, and structure is simple, at low cost, are convenient for vehicle cloth
It sets.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of batteries of electric automobile heat management system, it is cold
Condenser is connect by cooling cycle pipeline with threeway A input terminal, and the one of output end of threeway A passes through cooling cycle pipeline
It is connect with evaporator, solenoid valve A is installed on the cooling cycle pipeline between the threeway A and evaporator, the threeway A is another
A output end is connect by cooling cycle pipeline with chiller, on the cooling cycle pipeline between the threeway A and chiller
Solenoid valve B is installed, the evaporator follows pipeline by cooling and connect with one of input terminal of threeway B, the chiller
It follows pipeline by cooling to connect with another input terminal of threeway B, the output end of the threeway B is connect with compressor, the pressure
Contracting machine follows pipeline by cooling and connect with condenser, and heater cores are connect by water pipe with the one of input terminal of threeway C, described
Another input terminal of threeway C is connect by water pipe with impounding kettle, and the output end of the threeway C passes through its of water pipe and threeway D
In the connection of input terminal, the output end of the threeway D connect by water pipe with water pump, the water pump pass through water pipe and
Chiller connection, the chiller are connect by water pipe with PTC, and the PTC is connected by the input terminal of water pipe and triple valve,
One of output end of the triple valve is connect by water pipe with heater cores, and the another output of the triple valve passes through
Water pipe and battery pack water cooling piping connection, battery pack water cooling pipeline are connect by water pipe with another input terminal of threeway D.
CAN bus connects AC/ panel, and the AC/ panel connects solenoid valve A and solenoid valve B through signal wire, and the bus connects
VCU is met, the VCU is fixed on by condenser through signal wire connection fan, triple valve and water pump, the fan, the CAN bus
It is connect with compressor, BMS, PTC.
Based on the control method of the batteries of electric automobile heat management system, including battery method for heating and controlling:
BMS real-time report battery temperature information meets battery heating strategy when VUC collects the battery temperature that BMS is reported
After threshold value, triple valve is switched to circulating battery water route by VCU, opens water pump later, VCU is according to thermal management policy after water pump is opened
Issue PTC work order, PTC heating；
PTC, which is heated to battery, to be stopped after heating threshold value, and VCU stops sending PTC work order, and PTC stops heating, and PTC stops
VCU switches off the pump after only heating, and battery heating cycle is completed, and coolant liquid flow direction is at this time: coolant liquid is flowed to by water pump
Chille, compressor does not freeze at this time, and chille does not exchange heat to coolant liquid, and coolant liquid flows to threeway after PTC is heated
Valve, VCU control triple valve switch to battery cooling cycle pipeline, and coolant liquid adds after flowing through triple valve into battery pack for battery pack
Heat.
Further include battery fluid cooling control method:
BMS real-time report battery temperature information, VCU collect the battery temperature that BMS is reported and meet battery liquid cooling strategy threshold
After value, triple valve is switched to circulating battery water route by VCU, opens water pump later, and VCU requests AC/ panel to open compressor, AC/
Panel controls solenoid valve A and closes, and AC/ panel controls solenoid valve B and opens, refrigerant by cooling cycle piping connection to chiller,
Chiller exchanges heat to coolant liquid, squeezes into battery pack by water pump after coolant liquid is cooling and cools down to battery pack；
After battery is cooled to stopping liquid cooling threshold value, VCU gives AC/ panel to issue close compressor request, and compressor is closed,
VCU switches off the pump circulation, and battery liquid cooling operating condition is completed, and coolant liquid flow direction is at this time: coolant liquid flows to chille by water pump,
Chille by PTC flows to triple valve after exchanging heat to coolant liquid, and PTC is not heated at this time, and VCU control triple valve switches to electricity
Pond cooling cycle pipeline, coolant liquid enter battery pack after flowing through triple valve for battery pack cooling, and compressor cooling media is walked at this time
Xiang Shi: refrigerant flows to condenser by compressor, and refrigerant is by flowing to chiller, refrigerant pair by solenoid valve B after condenser
Chiller exchanged heat after by threeway C flow into compressor.
Further include crew module's refrigeration, the cooling mixing control method of battery:
AC/ air-conditioning panel issues crew module's refrigeration demand, and BMS reports battery temperature information, and VCU collects what BMS was reported
Battery temperature information has cooling requirement, and AC/ panel controls solenoid valve B opening and closing, and AC panel controls solenoid valve A and opens, AC/ panel control
Compressor operating processed, compressor cooling line trend is that refrigerant by compressor flows to condenser at this time, and refrigerant passes through condenser
Flow to evaporator by solenoid valve A afterwards, refrigerant by flowing to chille by solenoid valve B after condenser, refrigerant to evaporator into
Row heat exchange after by threeway C flow into compressor, refrigerant exchange heat to chiller after by threeway C flow into compressor.
The advantage of the invention is that battery liquid cooling, crew module, which are freezed, shares a compressor, battery heating, crew module's heating
It sharing a water and heats PTC, waterway circulating shares a water pump, and structure is simple, and it is at low cost, it is convenient for arrangement.
Detailed description of the invention
Below to width attached drawing every in description of the invention expression content and figure in label be briefly described:
Fig. 1 is batteries of electric automobile heat management system schematic diagram；
Fig. 2 is batteries of electric automobile heat management system CAN network topological diagram；
Label in above-mentioned figure is equal are as follows: 1, threeway A；2, threeway B；3, threeway C；4, threeway D；5, triple valve；6, solenoid valve
A；7, solenoid valve B.
Specific embodiment
Below against attached drawing, by the description of the embodiment, for example related each component of a specific embodiment of the invention
Shape, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle, manufacturing process and
Operate with method etc., is described in further detail, to help those skilled in the art to inventive concept of the invention, technology
Scheme has more complete, accurate and deep understanding.
Batteries of electric automobile heat management system include: condenser, fan, evaporator, compressor, solenoid valve A6, threeway A1,
Threeway B2, heater cores, threeway C3, impounding kettle, solenoid valve B7, chiller, water pump, threeway D4, PTC, triple valve 5, battery
Packet, BMS, AC/ panel, VCU.The present invention compares the prior art and has the following advantages that；With 5 kinds of work operating conditions: 1, battery liquid cooling,
2, battery heats, 3, crew module's heating, 4, crew module's refrigeration, 5, battery samming.
As shown in Figure 1, compression mechanism SAPMAC method: condenser follows pipeline by cooling and connect with threeway A1；Threeway A1 passes through
Cooling cycle pipeline is connect with evaporator, is equipped with solenoid valve A6 in threeway A1 and evaporator cooling cycle pipeline；Threeway A1 is logical
Supercooling circulation line is connect with chiller, is equipped with solenoid valve B7 in threeway A1 and chiller cooling cycle pipeline；Evaporation
Device follows pipeline by cooling and connect with threeway B2；Chiller follows pipeline by cooling and connect with threeway B2；Threeway B2 passes through cooling
Pipeline is followed to connect with compressor；Compressor follows pipeline by cooling and connect with condenser；
Waterway circulating: heater cores are connect by water pipe with threeway C3；Threeway C3 is connect by water pipe with impounding kettle；Threeway
C3 is connect by water pipe with threeway D4；Threeway D4 is connect by water pipe with water pump；Water pump is connect by water pipe with chiller；
Chiller is connect by water pipe with PTC, and PTC is connect by water pipe with triple valve 5；Triple valve 5 is connected by water pipe and heater cores
It connects；Triple valve 5 is connect by water pipe with battery pack；Battery pack is connect by water pipe with threeway D4；
Battery heating cycle: BMS reports battery temperature information, and VUC, which collects the battery temperature that BMS is reported and meets battery, to be added
After hot policy threshold, triple valve 5 is switched to circulating battery water route by VCU, opens water pump later, VCU is according to warm after water pump is opened
Management strategy issues PTC work order, PTC heating；PTC, which is heated to battery, to be stopped after heating threshold value, and VCU stops sending PTC work
It instructs, PTC stops heating, and VCU switches off the pump after PTC stops heating, and battery heating cycle is completed, and coolant liquid flow direction is at this time
Coolant liquid flows to chille by water pump, and compressor does not freeze at this time, and chille does not exchange heat to coolant liquid, and coolant liquid is passed through
Triple valve 5 is flowed to after PTC heating, VCU control triple valve 5 switches to battery cooling cycle pipeline, after coolant liquid flows through triple valve 5
It is battery pack heating into battery pack.
Battery liquid cooling operating condition；BMS reports battery temperature information, and VCU collects the battery temperature that BMS is reported and meets battery fluid
After cold policy threshold, triple valve 5 is switched to circulating battery water route by VCU, opens water pump later, and VCU requests AC/ panel to open pressure
Contracting machine, AC/ panel control solenoid valve A6 and close, and AC/ panel controls solenoid valve B7 and opens, and refrigerant passes through cooling cycle piping connection
It exchanges heat to chiller, chiller to coolant liquid, battery pack is squeezed by water pump after coolant liquid is cooling, battery pack is carried out
It is cooling；After battery is cooled to stopping liquid cooling threshold value, VCU gives AC/ panel to issue close compressor request, and compressor is closed, and VCU is closed
Water pump circulation is closed, battery liquid cooling operating condition is completed, and to be coolant liquid flow to chille by water pump to coolant liquid flow direction at this time, and chille pairs
Coolant liquid by PTC flows to triple valve 5 after being exchanged heat, and PTC is not heated at this time, and it is cooling that VCU control triple valve 5 switches to battery
Circulation line, coolant liquid enter battery pack after flowing through triple valve 5 for battery pack cooling, and compressor cooling line trend is cold at this time
Matchmaker flows to condenser by compressor, and refrigerant is by flowing to chiller by solenoid valve B7 after condenser, and refrigerant is to chiller
Compressor is flowed by threeway C3 after being exchanged heat.
Crew module's heating operating condition: AC/ air-conditioning panel issues crew module's demand for heat, and BMS reports battery temperature information, VCU
Battery temperature information that BMS is reported is collected without the demand that is heated or cooled, AC/ panel control triple valve 5 switches to heater cores
Water route, AC/ panel issue pump working request to VCU, and VCU controls pump working, and AC/ panel issues heat request to PTC,
PTC is begun to warm up, and coolant liquid flow direction is that coolant liquid by water pump flows to chille at this time, and compressor does not freeze at this time, chille
It does not exchange heat to coolant liquid, coolant liquid flows to triple valve 5 after PTC is heated, and VCU control triple valve 5 switches to warm wind core
Body circulation pipeline, coolant liquid flow to after heater cores are exchanged heat and flow into water pump.
Crew module's cooling condition: AC/ air-conditioning panel issues crew module's refrigeration demand, and BMS reports battery temperature information, VCU
Battery temperature information that BMS is reported is collected without the demand that is heated or cooled, AC/ panel controls solenoid valve B7 and closes, AC panel control
Solenoid valve A6 processed is opened, and AC/ panel controls compressor operating, and compressor cooling line trend is that refrigerant passes through compressor stream at this time
To condenser, refrigerant by flowing to evaporator by solenoid valve A6 after condenser, refrigerant exchange heat to evaporator after by three
Logical C3 flows into compressor.
Mixed flow regime is heated in crew module's heating, battery: AC/ air-conditioning panel issues crew module's demand for heat, and BMS reports battery
Temperature information, VCU, which collects the battery temperature information that BMS is reported, heating or demand, and AC/ panel control triple valve 5 switches to
Heater cores water route, AC/ panel issue pump working request to VCU, and VCU controls pump working, and AC/ panel is issued to PTC to be added
Heat request, PTC begins to warm up, and coolant liquid flow direction is that coolant liquid by water pump flows to chille at this time, and compressor does not freeze at this time,
Chille does not exchange heat to coolant liquid, and coolant liquid flows to triple valve 5 after PTC is heated, and VCU control triple valve 5 switches to
Heater cores circulation line, coolant liquid, which is flow to after heater cores are exchanged heat, flows into water pump, to battery after the completion of crew module's heating
It is heated, triple valve 5 is switched to circulating battery water route by VCU, opens water pump later, VCU is according to heat management after water pump is opened
Strategy issues PTC work order, PTC heating；PTC, which is heated to battery, to be stopped after heating threshold value, and VCU stops sending PTC and working referring to
It enables, PTC stops heating, and VCU switches off the pump after PTC stops heating, and battery heating cycle is completed, and coolant liquid flow direction is cooling at this time
Liquid flows to chille by water pump, and compressor does not freeze at this time, and chille does not exchange heat to coolant liquid, and coolant liquid passes through PTC
Triple valve 5 is flowed to after heating, VCU control triple valve 5 switches to battery cooling cycle pipeline, and it is laggard that coolant liquid flows through triple valve 5
Enter battery pack for battery pack heating.
The cooling mixed flow regime of crew module's refrigeration, battery: AC/ air-conditioning panel issues crew module's refrigeration demand, and BMS reports battery
Temperature information, VCU, which collects the battery temperature information that BMS is reported, cooling requirement, and AC/ panel controls solenoid valve B7 opening and closing, AC
Panel controls solenoid valve A6 and opens, and AC/ panel controls compressor operating, and compressor cooling line trend is that refrigerant passes through pressure at this time
Contracting machine flows to condenser, and by flowing to evaporator by solenoid valve A6 after condenser, refrigerant passes through after condenser by electricity refrigerant
Magnet valve B7 flows to chille, and refrigerant by threeway C3 flows into compressor after exchanging heat to evaporator, and refrigerant carries out chiller
Compressor is flowed by threeway C3 after heat exchange.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out is used, or without changing
It is within the scope of the present invention into the conception and technical scheme of the invention are directly applied to other occasions.
Claims (5)
1. a kind of batteries of electric automobile heat management system, it is characterised in that: condenser is inputted by cooling cycle pipeline and threeway A
End connection, the one of output end of threeway A are connect by cooling cycle pipeline with evaporator, the threeway A and evaporator
Between cooling cycle pipeline on solenoid valve A is installed, the threeway A another output by cooling cycle pipeline with
Chiller connection is equipped with solenoid valve B on the cooling cycle pipeline between the threeway A and chiller, and the evaporator is logical
Supercooling follows pipeline and connect with one of input terminal of threeway B, and the chiller follows the another of pipeline and threeway B by cooling
One input terminal connection, the output end of the threeway B are connect with compressor, and the compressor follows pipeline and condenser by cooling
Connection, heater cores are connect by water pipe with the one of input terminal of threeway C, and another input terminal of the threeway C passes through water
Pipe is connect with impounding kettle, and the output end of the threeway C is connect by water pipe with one of input terminal of threeway D, the threeway D
Output end connect with water pump by water pipe, the water pump passes through water pipe and connect with chiller, and the chiller passes through water pipe
It is connect with PTC, the PTC is connected by the input terminal of water pipe and triple valve, and one of output end of the triple valve passes through
Water pipe is connect with heater cores, and the another output of the triple valve passes through water pipe and battery pack water cooling piping connection, battery
Packet water cooling pipeline is connect by water pipe with another input terminal of threeway D.
2. batteries of electric automobile heat management system according to claim 1, it is characterised in that: CAN bus connects the face AC/
Plate, the AC/ panel connect solenoid valve A and solenoid valve B through signal wire, and the bus connects VCU, and the VCU connects through signal wire
Wind-receiving fan, triple valve and water pump, the fan are fixed on by condenser, and the CAN bus is connect with compressor, BMS, PTC.
3. the control method based on batteries of electric automobile heat management system as claimed in claim 1 or 2, which is characterized in that including electricity
Pond method for heating and controlling:
BMS real-time report battery temperature information meets battery heating strategy threshold value when VUC collects the battery temperature that BMS is reported
Afterwards, triple valve is switched to circulating battery water route by VCU, opens water pump later, VCU is issued according to thermal management policy after water pump is opened
PTC work order, PTC heating；
PTC, which is heated to battery, to be stopped after heating threshold value, and VCU stopping sends PTC work order, and PTC stops heating, and PTC stopping adds
VCU switches off the pump after heat, and battery heating cycle is completed, and coolant liquid flow direction is at this time: coolant liquid flows to chille by water pump, this
When compressor do not freeze, chille does not exchange heat to coolant liquid, and coolant liquid flows to triple valve after PTC is heated, VCU control
Triple valve switches to battery cooling cycle pipeline, and coolant liquid enters battery pack after flowing through triple valve for battery pack heating.
4. control method according to claim 3, which is characterized in that further include battery fluid cooling control method:
BMS real-time report battery temperature information, VCU are collected after the battery temperature that BMS is reported meets battery liquid cooling policy threshold,
Triple valve is switched to circulating battery water route by VCU, opens water pump later, and VCU requests AC/ panel to open compressor, AC/ panel control
Solenoid valve A processed is closed, and AC/ panel controls solenoid valve B and opens, refrigerant by cooling cycle piping connection to chiller,
Chiller exchanges heat to coolant liquid, squeezes into battery pack by water pump after coolant liquid is cooling and cools down to battery pack；
After battery is cooled to stopping liquid cooling threshold value, VCU gives AC/ panel to issue close compressor request, and compressor is closed, and VCU is closed
Water pump circulation is closed, battery liquid cooling operating condition is completed, and coolant liquid flow direction is at this time: coolant liquid flows to chille, chille by water pump
Triple valve is flowed to by PTC after exchanging heat to coolant liquid, PTC is not heated at this time, and it is cooling that VCU control triple valve switches to battery
Circulation line, coolant liquid enter battery pack after flowing through triple valve for battery pack cooling, and compressor cooling media trend is at this time: cold
Matchmaker flows to condenser by compressor, refrigerant by flowing to chiller by solenoid valve B after condenser, refrigerant to chiller into
Compressor is flowed by threeway C after row heat exchange.
5. control method according to claim 3 or 4, which is characterized in that further include crew module's refrigeration, the cooling mixing of battery
Control method:
AC/ air-conditioning panel issues crew module's refrigeration demand, and BMS reports battery temperature information, and VCU collects the battery that BMS is reported
Temperature information has cooling requirement, and AC/ panel controls solenoid valve B opening and closing, and AC panel controls solenoid valve A and opens, AC/ panel control pressure
The work of contracting machine, to be refrigerant flow to condenser by compressor to compressor cooling line trend at this time, and refrigerant after condenser by passing through
It crosses solenoid valve A and flows to evaporator, for refrigerant by flowing to chille by solenoid valve B after condenser, refrigerant changes evaporator
After heat by threeway C flow into compressor, refrigerant exchange heat to chiller after by threeway C flow into compressor.
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| CN201910596263.6A CN110450598A (en) | 2019-07-03 | 2019-07-03 | A kind of batteries of electric automobile heat management system and its control method |
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Cited By (4)
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| CN111497687A (en) * | 2020-04-16 | 2020-08-07 | 汉腾汽车有限公司 | Temperature control system of low-voltage fuel cell automobile |
| CN111976419A (en) * | 2020-07-06 | 2020-11-24 | 惠州市德赛西威汽车电子股份有限公司 | Refrigeration method and control system for eliminating temperature disturbance |
| CN115447345A (en) * | 2022-09-28 | 2022-12-09 | 福龙马集团股份有限公司 | Thermal management system and method for sanitation vehicle |
| CN116198275A (en) * | 2022-12-23 | 2023-06-02 | 河南德力新能源汽车有限公司 | Electric automobile air conditioner and power battery thermal management control system and control method |
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| CN107298001A (en) * | 2017-06-30 | 2017-10-27 | 浙江合众新能源汽车有限公司 | A kind of thermal management system of whole pure electric vehicle and control method |
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Application publication date: 20191115 |