CN112339524B - Thermal management system of pure electric commercial vehicle and use method - Google Patents
Thermal management system of pure electric commercial vehicle and use method Download PDFInfo
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- CN112339524B CN112339524B CN202011237832.7A CN202011237832A CN112339524B CN 112339524 B CN112339524 B CN 112339524B CN 202011237832 A CN202011237832 A CN 202011237832A CN 112339524 B CN112339524 B CN 112339524B
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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
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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
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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
- 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
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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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
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
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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
- B60H2001/00307—Component temperature regulation using a liquid flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The pure electric commercial vehicle heat management system comprises a compressor, a radiator, a condenser, a heat exchanger A, a heat exchanger B, a heat exchanger C, a driving motor, an all-in-one controller and a refrigerant flowing water path consisting of a power battery, a battery deep cooling water path, a motor deep cooling water path and a shallow cooling water path. The design has the advantages of good energy management effect, low equipment cost, good compatibility effect and easy control.
Description
Technical Field
The invention relates to a vehicle thermal management system, belongs to the technical field of new energy vehicles, and particularly relates to a pure electric commercial vehicle thermal management system and a use method thereof.
Background
At present, cooling and heating systems on various pure electric commercial vehicles in the market are mutually independent, such as pure electric light trucks and pure electric refrigerated vehicles, so that the energy distribution is unreasonable, the energy utilization rate is reduced, each area needing to be heated or cooled needs to be provided with a heating or cooling system independently, and the equipment cost is improved.
The information disclosed in this background section is only for enhancement of understanding of the general background of the patent application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects and problems of poor energy management effect and high equipment cost in the prior art, and provides a pure electric commercial vehicle thermal management system with good energy management effect and low equipment cost and a use method thereof.
In order to achieve the above purpose, the technical solution of the invention is as follows: a thermal management system of a pure electric commercial vehicle comprises a driving motor, an all-in-one controller and a power battery, wherein the driving motor is communicated with a first water pump through the all-in-one controller, and the power battery is communicated with a third water pump;
the heat management system of the pure electric commercial vehicle further comprises a compressor, a radiator, a condenser, a first heat exchanger, a second heat exchanger and a third heat exchanger, wherein the first heat exchanger comprises a first inlet, a first outlet and a second inlet and a second outlet which are communicated with each other;
the first export of second communicates with each other with first entry after compressor, condenser in proper order, the first export of third water pump communicates with each other with second entry after water pump one, unify controller, driving motor more in proper order, the export of water pump one communicates with each other with the entry of water pump one after unifying controller, driving motor, radiator more in proper order, the export of water pump three communicates with each other with the entry of water pump three after power battery, the second entry of first water pump, the second export of third water pump in proper order.
A condenser is arranged on one side of the radiator, and an electronic fan is arranged on the other side of the radiator.
The compressor is an electric variable frequency compressor.
The pure electric commercial vehicle heat management system further comprises a second water pump and a first water heater, an inlet of the second water pump is communicated with a pipeline between an outlet of the first water pump and the first water pump, an outlet of the second water pump is communicated with an inlet of the first water heater, and an outlet of the first water heater is communicated with a pipeline between the driving motor and an inlet of the second water heater.
The pure electric commercial car heat management system further comprises a warm air core body, a second evaporator, a second air blower and a second electronic expansion valve, wherein an outlet of the warm air core body is communicated with an inlet of the warm air core body after sequentially passing through the second water pump and the second water heater, one end of the second electronic expansion valve is communicated with a first inlet and a pipeline between condensers, the other end of the second electronic expansion valve is communicated with a pipeline between outlets of the first compressor and the second air blower after passing through the second evaporator, and the warm air core body is arranged between the second evaporator and the second air blower.
The pure electric commercial vehicle heat management system further comprises a first evaporator, a first air blower and a first electronic expansion valve, one end of the first electronic expansion valve is communicated with a pipeline between the first inlet and the condenser, the other end of the first electronic expansion valve is communicated with a pipeline between the compressor and the second outlet after passing through the first evaporator, and the first air blower is arranged beside the first evaporator.
And the condenser is communicated with the first inlet through an electronic expansion valve III.
The use method of the heat management system of the pure electric commercial vehicle comprises at least one of a battery and motor sequential deep cooling process, a battery heating process during heating, a battery heating process during cooling, a motor shallow cooling process, a cab cooling and heating process and a refrigerating chamber cooling process;
the starting signals of the battery and the motor sequential deep cooling process are that both the power battery and the motor need deep cooling, and the motor needs deep cooling, which means that at least one of the driving motor and the all-in-one controller needs deep cooling; the battery and motor sequential deep cooling process comprises the following three water paths which are conducted simultaneously:
a battery deep cooling water channel consisting of a second outlet, a third water pump, a power battery, a second inlet, a second outlet and a second inlet;
the motor deep cooling water channel is composed of a first inlet, a first water pump, an all-in-one controller, a driving motor, a second inlet, a second outlet and a first inlet;
the first outlet, the compressor, the condenser, the first inlet, the first outlet and the second inlet form a refrigerant flowing waterway.
The starting signal of the battery warming process during the warming process is that the driving motor is a warming machine and the power battery needs warming; the battery temperature rise process during the heat engine comprises the following two water ways which are conducted simultaneously:
a battery deep cooling water channel consisting of a second outlet, a third water pump, a power battery, a second inlet, a second outlet and a second inlet;
the motor deep cooling water channel is composed of a first inlet, a first water pump, a first all-in-one controller, a driving motor, a second inlet, a second outlet and a first inlet.
The starting signal of the motor shallow cooling process is that the temperature of at least one of the all-in-one controller and the driving motor exceeds a set temperature; the shallow cooling process of the motor comprises the following conducted water paths:
and the motor shallow cooling water channel is formed by an outlet of the first water pump, the all-in-one controller, the driving motor, the radiator and an inlet of the first water pump.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a heat management system of a pure electric commercial vehicle and a using method thereof, which comprises a compressor, a radiator, a condenser, a heat exchanger A, a heat exchanger B, a heat exchanger C, a driving motor, an all-in-one controller and a refrigerant flowing water path consisting of a power battery, a battery deep cooling water path, a motor deep cooling water path and a motor shallow cooling water path, wherein when in application, any one of a battery and motor sequential deep cooling process, a battery heating process during heat engine and a motor shallow cooling process can be realized by switching on and off various water paths, thereby not only heating the battery by using the waste heat of the motor and simultaneously cooling the battery and heating the battery, leading the waste heat recovery to be more sufficient and reasonable, but also limiting the utilization sequence of the refrigerant to be the motor after the battery to meet the actual requirement that the cooling temperature of the battery is lower than the cooling temperature of the motor, and improving the utilization rate of the refrigerant, thereby promote the utilization ratio of the car energy on the whole, still reduce supporting cooling, heating system simultaneously, reduce vehicle cost, improve market competition, when especially using on pure electric refrigerator car, the effect is better. Therefore, the invention not only has better energy management effect, but also has lower equipment cost.
2. The pure electric commercial vehicle heat management system and the use method thereof are characterized in that a water pump II and a water heater are additionally arranged, wherein an inlet of the water pump II is communicated with a pipeline between a first water outlet and the water pump I, an outlet of the water pump II is communicated with an inlet of the water heater, an outlet of the water heater is communicated with a pipeline between a driving motor and a second water inlet, and when the pure electric commercial vehicle heat management system is applied, a battery is heated by the water heater to ensure the heating requirement of the battery during cooling, so that the battery can be heated no matter the heat engine or the cooling engine is ensured, the energy utilization rate and the battery temperature management requirement are improved, and the requirements are met at the same time. Therefore, the invention not only can ensure the use requirement of the battery temperature, but also has better energy management effect.
3. The invention relates to a heat management system of a pure electric commercial vehicle and a using method thereof, wherein a warm air core body, an evaporator II, a blower II and an electronic expansion valve II are additionally arranged, wherein an outlet of the warm air core body is communicated with an inlet of the warm air core body after sequentially passing through a water pump II and a water heater, one end of the electronic expansion valve II is communicated with a pipeline between an inlet A and a condenser, and the other end of the electronic expansion valve II is communicated with a pipeline between an outlet B and an inlet A of a compressor after passing through the evaporator II, when in application, the warm air core body borrows temperature from the water heater to improve the temperature of a cab, meanwhile, the evaporator II can borrow cold from the water channels of the compressor and the condenser to reduce the temperature of the cab, thereby realizing the warming and air conditioning functions of the cab, in addition, parts for realizing temperature management of the cab are all embedded into a basic flowing water channel of a refrigerant, a battery cooling water channel and a motor cooling water channel, avoid additionally being equipped with heating, cooling device, the cost is reduced. Therefore, the invention not only can realize the cooling and heating of the cab and improve the driving comfort, but also has better compatible effect and lower realization cost.
4. The invention relates to a heat management system of a pure electric commercial vehicle and a using method thereof, wherein the whole system comprises a deep cooling water path and a shallow cooling water path of a motor, a deep cooling water path and a shallow cooling water path of a battery, two temperature rising water paths of the battery, a temperature rising and cooling water path of a cab and a cooling water path of a refrigerating chamber, the system realizes the requirements of heating and cooling in a plurality of areas and in a plurality of types, has complete functions, but also relates the temperature requirements of different parts of the vehicle, manages the temperature in a whole, improves the energy management efficiency, avoids using a large amount of heating and refrigerating matching equipment, reduces the cost, and in addition, the three-way electronic valves are directly controlled by VCUs (virtual peripheral units) to realize the on-off of various water paths, so that the normal realization of multiple functions can be ensured, the operation difficulty is reduced, the control efficiency is improved, and the control cost is also reduced. Therefore, the invention has the advantages of stronger overall function, higher energy management efficiency, easy operation and lower control cost.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the connection between the first heat exchanger, the second heat exchanger and the third heat exchanger.
FIG. 3 is a schematic view of the structure of the first heat exchanger in the present invention.
Fig. 4 is a schematic structural diagram of a refrigerant flow water path, a battery deep cooling water path, and a motor deep cooling water path according to the present invention.
Fig. 5 is a schematic structural diagram of a shallow cooling water path of the motor in the invention.
FIG. 6 is a schematic diagram of the water path for warming the battery when the refrigerator of the present invention is cold.
Fig. 7 is a schematic view of a waterway in the case of raising and lowering the temperature of the cab in the present invention.
FIG. 8 is a schematic view of a water path for cooling the refrigerating compartment according to the present invention.
In the figure: the system comprises a first electronic expansion valve 1, a first evaporator 11, a first blower 12, a second electronic expansion valve 2, a second evaporator 21, a second blower 22, a warm air core 23, a third electronic expansion valve 3, a compressor 31, a condenser 32, a power battery 4, a third water pump 41, a driving motor 5, a first water pump 51, an all-in-one controller 52, a radiator 53, an electronic fan 54, a first heat exchanger 6, a first inlet 61, a first outlet 62, a second inlet 63, a second outlet 64, a second heat exchanger 7, a first inlet 71, a first outlet 72, a second inlet 73, a second outlet 74, a third heat exchanger 8, a first inlet 81, a first outlet 82, a second inlet 83, a second outlet 84, a water heater 9, a second water pump 91, a three-way electronic valve assembly 10, a first three-way electronic valve 101, a second three-way electronic valve 102, a third three-way electronic valve 103, a fourth three-way electronic valve 104, a fifth three-way electronic valve 105, a third electronic valve and a fourth three-way electronic valve, A six-way electronic valve 106, a seven-way electronic valve 107, an eight-way electronic valve 108, a nine-way electronic valve 109 and a ten-way electronic valve 110.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 8, the thermal management system for the pure electric commercial vehicle comprises a driving motor 5, an all-in-one controller 52 and a power battery 4, wherein the driving motor 5 is communicated with a first water pump 51 through the all-in-one controller 52, and the power battery 4 is communicated with a third water pump 41;
the heat management system of the pure electric commercial vehicle further comprises a compressor 31, a radiator 53, a condenser 32, a heat exchanger A6, a heat exchanger B7 and a heat exchanger C8, wherein the heat exchanger A6 comprises a first inlet 61 and a first outlet 62 which are communicated with each other, a second inlet 63 and a second outlet 64 which are communicated with each other, the heat exchanger B7 comprises a first inlet 71 and a first outlet 72 which are communicated with each other, a second inlet 73 and a second outlet 74 which are communicated with each other, the heat exchanger C8 comprises a first inlet 81 and a first outlet 82 which are communicated with each other, a second inlet 83 and a second outlet 84 which are communicated with each other, the first outlet 62 is communicated with the first inlet 71, the second outlet 74 is communicated with the first inlet 81, and the second inlet 83 is communicated with the second outlet 64;
The condenser 32 is provided at one side of the radiator 53, and the electronic fan 54 is provided at the other side of the radiator 53.
The compressor 31 is an electric inverter compressor.
The heat management system of the pure electric commercial vehicle further comprises a second water pump 91 and a first water heater 9, an inlet of the second water pump 91 is communicated with a pipeline between the first water outlet 82 and the first water pump 51, an outlet of the second water pump 91 is communicated with an inlet of the first water heater 9, and an outlet of the second water heater 9 is communicated with a pipeline between the driving motor 5 and the second water inlet 73.
Pure electric commercial car thermal management system still includes warm braw core 23, two 21 of evaporimeter, two 22 of air-blower and electronic expansion valve two 2, the export of warm braw core 23 communicates with each other with the entry of warm braw core 23 behind water pump two 91, the water heater 9 in proper order, the pipeline between one end and the first entry 61 of electronic expansion valve two 2, the condenser 32 communicates with each other, and the other end of electronic expansion valve two 2 communicates with each other with the pipeline between compressor 31, the first export 72 of second behind evaporimeter two 21, and warm braw core 23 sets up between two 21 of evaporimeter, two 22 of air-blower.
The heat management system of the pure electric commercial vehicle further comprises a first evaporator 11, a first blower 12 and a first electronic expansion valve 1, one end of the first electronic expansion valve 1 is communicated with a pipeline between the first inlet 61 and the condenser 32, the other end of the first electronic expansion valve 1 is communicated with a pipeline between the compressor 31 and the first outlet 72 after passing through the first evaporator 11, and the first blower 12 is arranged beside the first evaporator 11.
The condenser 32 is communicated with the first inlet 61 through an electronic expansion valve three 3.
The use method of the heat management system of the pure electric commercial vehicle comprises at least one of a battery and motor sequential deep cooling process, a battery heating process during heating, a battery heating process during cooling, a motor shallow cooling process, a cab cooling and heating process and a refrigerating chamber cooling process;
the starting signals of the battery and motor sequential deep cooling process are that the power battery 4 and the motor both need deep cooling, and the motor needs deep cooling, which means that at least one of the driving motor 5 and the all-in-one controller 52 needs deep cooling; the battery and motor sequential deep cooling process comprises the following three water paths which are conducted simultaneously:
a second third outlet 84, a third water pump 41, a power battery 4, a second inlet 63, a second outlet 64 and a second third inlet 83;
the first-third outlet 82, the first water pump 51, the all-in-one controller 52, the driving motor 5, the second inlet 73, the second outlet 74 and the first-third inlet 81 form a motor deep cooling water circuit;
a refrigerant flowing water path formed by the second outlet 72, the compressor 31, the condenser 32, the first inlet 61, the first outlet 62 and the second inlet 71.
The starting signal of the battery warming process during the heat engine is that the driving motor 5 is a heat engine, and the power battery 4 needs warming; the battery temperature rise process during the heat engine comprises the following two water ways which are conducted simultaneously:
a second third outlet 84, a third water pump 41, a power battery 4, a second inlet 63, a second outlet 64 and a second third inlet 83;
the first third outlet 82, the first water pump 51, the all-in-one controller 52, the driving motor 5, the second inlet 73, the second outlet 74 and the first third inlet 81 form a motor deep cooling water circuit.
The starting signal of the motor shallow cooling process is that the temperature of at least one of the all-in-one controller 52 and the driving motor 5 exceeds a set temperature; the shallow cooling process of the motor comprises the following conducted water paths:
the outlet of the first water pump 51, the all-in-one controller 52, the driving motor 5, the radiator 53 and the inlet of the first water pump 51 form a motor shallow cooling water channel.
The principle of the invention is illustrated as follows:
the first heat exchanger 6, the second heat exchanger 7 and the third heat exchanger 8 have the same structure, and the mutual communication relationship between the first outlet and the first inlet and the mutual communication relationship between the second outlet and the second inlet are the same.
In the invention, in order to improve the control efficiency of the on-off of each water path and reduce the control cost, ten three-way electronic valves (all of which can be controlled and adjusted by a VCU) are arranged, namely a first three-way electronic valve 101, a second three-way electronic valve 102, a third three-way electronic valve 103, a fourth three-way electronic valve 104, a fifth three-way electronic valve 105, a sixth three-way electronic valve 106, a seventh three-way electronic valve 107, an eighth three-way electronic valve 108, a ninth three-way electronic valve 109 and a tenth three-way electronic valve 110, and when the three-way electronic valves are specifically applied, the ten three-way electronic valves are integrated for use, so that the ten three-way electronic valve assemblies can be integrated into one three-way electronic valve assembly 10, and every five three-way electronic valves can be integrated into one assembly, thereby forming two three-way electronic valve assemblies 10.
Example 1:
hardware structure: referring to fig. 1 to 8, a heat management system for a pure electric commercial vehicle comprises a driving motor 5, an all-in-one controller 52, a power battery 4, a compressor 31, a radiator 53, a condenser 32, a first heat exchanger 6, a second heat exchanger 7 and a third heat exchanger 8, wherein the first heat exchanger 6 comprises a first inlet 61, a first outlet 62, a second inlet 63 and a second outlet 64 which are communicated with each other, the second heat exchanger 7 comprises a second inlet 71, a second outlet 72, a second inlet 73 and a second outlet 74 which are communicated with each other, the third heat exchanger 8 comprises a first inlet 81, a first outlet 82, a second inlet 83 and a second outlet 84 which are communicated with each other, the first outlet 62 is communicated with the second inlet 71, the second outlet 74 is communicated with the first inlet 81, and the second inlet 83 is communicated with the second outlet 64; second export 72 communicates with each other with first entry 61 after compressor 31, condenser 32 in proper order, first export 82 communicates with each other with second entry 73 after water pump 51, all-in-one controller 52, driving motor 5 in proper order, the export of water pump 51 communicates with each other with the entry of water pump 51 after all-in-one controller 52, driving motor 5, radiator 53 in proper order, the export of three 41 of water pump communicates with each other with the entry of three 41 of water pump after power battery 4, second entry 63, second export 84 in proper order.
The using method comprises the following steps: a use method of the heat management system of the pure electric commercial vehicle only refers to a sequential deep cooling process of a battery and a motor; the starting signals of the battery and motor sequential deep cooling process are that the power battery 4 and the motor both need deep cooling, and the motor needs deep cooling, which means that at least one of the driving motor 5 and the all-in-one controller 52 needs deep cooling; the battery and motor sequential deep cooling process comprises the following three water paths which are conducted simultaneously: a second third outlet 84, a third water pump 41, a power battery 4, a second inlet 63, a second outlet 64 and a second third inlet 83; the first-third outlet 82, the first water pump 51, the all-in-one controller 52, the driving motor 5, the second inlet 73, the second outlet 74 and the first-third inlet 81 form a motor deep cooling water circuit; a refrigerant flowing water path formed by the second outlet 72, the compressor 31, the condenser 32, the first inlet 61, the first outlet 62 and the second inlet 71.
Example 2:
the hardware structure is different from the embodiment 1 in the using method, and the difference is that:
referring to fig. 2, fig. 3 and fig. 4, the usage method is not a battery and motor sequential deep cooling process, but a battery warming process at the time of heat engine, wherein the starting signal of the battery warming process at the time of heat engine is that the driving motor 5 is the heat engine, and the power battery 4 needs warming; the battery temperature rise process during the heat engine comprises the following two water ways which are conducted simultaneously:
a second third outlet 84, a third water pump 41, a power battery 4, a second inlet 63, a second outlet 64 and a second third inlet 83; the first third outlet 82, the first water pump 51, the all-in-one controller 52, the driving motor 5, the second inlet 73, the second outlet 74 and the first third inlet 81 form a motor deep cooling water circuit. When the device is used, the power battery 4 is heated up through the waste heat of the driving motor 5, and the dual requirements of motor cooling and battery heating are taken into consideration.
In addition, when the motor needs shallow cooling, there is another method, namely, only the motor is directly cooled, and the battery is not heated, referring to fig. 5, which is a schematic structural diagram of a shallow cooling water path of the motor in the present invention, and the specific process is as follows: the outlet of the first water pump 51 is communicated with the inlet of the first water pump 51 after passing through the all-in-one controller 52, the driving motor 5 and the radiator 53 in sequence.
Example 3:
the second water pump 91, the second water heater 9, the warm air core 23, the second evaporator 21, the second blower 22 and the second electronic expansion valve 2 are additionally arranged on the basis of the hardware structure of the embodiment 1.
Referring to fig. 6, the water path schematic diagram of the battery temperature rise when the refrigerator is cold is shown, and the specific process is as follows: a water heating and warming water channel consisting of an outlet of the second water pump 91, a water heater 9 (preferably PTC), a second inlet 73, a second outlet 74, a first inlet 81, a first outlet 82 and an inlet of the second water pump 91; meanwhile, the battery deep cooling water path formed by the second third outlet 84, the third water pump 41, the power battery 4, the second inlet 63, the second outlet 64 and the second third inlet 83 exchanges heat with the water heating temperature raising water path in the heat exchanger at the moment so as to raise the temperature of the power battery 4.
Referring to fig. 7, the diagram is a schematic diagram of a waterway during heating and cooling of a cab, and the specific process is as follows: the waterway for heating the cab is an outlet of the warm air core 23, a second water pump 91, a second water heater 9 and an inlet of the warm air core 23, and meanwhile, a second air blower 22 blows air to the warm air core 23 to blow hot air into the cab for heating; the water path for cooling the cab is the outlet of the second electronic expansion valve 2, the second evaporator 21, the compressor 31, the condenser 32 and the inlet of the second electronic expansion valve 2, and meanwhile, the second air blower 22 blows air to the second evaporator 21 to blow cold into the cab for cooling.
Example 4:
on the basis of the hardware structure of the embodiment 1, a first evaporator 11, a first blower 12 and a first electronic expansion valve 1 are additionally arranged. Referring to fig. 6, the water path diagram is a schematic diagram of a cooling water path of the refrigerating chamber, and the specific process includes an outlet of the electronic expansion valve one 1, an evaporator one 11, a compressor 31, a condenser 32, and an inlet of the electronic expansion valve one 1, and meanwhile, the blower one 12 blows air to the evaporator one 11 to blow cold air to the refrigerating chamber for cooling.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (10)
1. The utility model provides a pure electric commercial car thermal management system, includes driving motor (5), unifies controller (52) and power battery (4) more, driving motor (5) communicate with each other through unifying controller (52) and water pump (51) more, power battery (4) communicate with each other with three (41) of water pump, its characterized in that:
the thermal management system of the pure electric commercial vehicle further comprises a compressor (31), a radiator (53), a condenser (32), a first heat exchanger (6), a second heat exchanger (7) and a third heat exchanger (8), the first heat exchanger (6) comprises a first inlet (61), a first outlet (62), a second inlet (63) and a second outlet (64) which are communicated with each other, the second heat exchanger (7) comprises a first inlet (71), a second outlet (72), a second inlet (73) and a second outlet (74) which are communicated with each other, the third heat exchanger (8) comprises a first inlet (81), a first outlet (82), a second inlet (83) and a second outlet (84) which are communicated with each other, the first-stage outlet (62) is communicated with the first-stage inlet (71), the second-stage outlet (74) is communicated with the first-stage inlet (81), and the second-stage inlet (83) is communicated with the second-stage outlet (64);
the first export of second (72) communicates with each other with first entry (61) behind compressor (31), condenser (32) in proper order, first export of third (82) communicates with each other with second entry (73) behind water pump one (51), all-in-one controller (52), driving motor (5) in proper order, the export of water pump one (51) communicates with each other with the entry of water pump one (51) behind all-in-one controller (52), driving motor (5), radiator (53) in proper order, the export of water pump three (41) communicates with each other with the entry of water pump three (41) behind power battery (4), second entry (63), second export of third (84) in proper order.
2. The pure electric commercial vehicle thermal management system according to claim 1, characterized in that: a condenser (32) is arranged on one side of the radiator (53), and an electronic fan (54) is arranged on the other side of the radiator (53).
3. A pure electric commercial vehicle thermal management system according to claim 1 or 2, characterized in that: the compressor (31) is an electric variable-frequency compressor.
4. A pure electric commercial vehicle thermal management system according to claim 1 or 2, characterized in that: the pure electric commercial vehicle heat management system further comprises a second water pump (91) and a first water heater (9), a pipeline between an inlet of the second water pump (91) and the first water pump outlet (82) and a pipeline between the first water pump (51) are communicated, an outlet of the second water pump (91) is communicated with an inlet of the second water heater (9), and a pipeline between an outlet of the second water pump (91) and the second water heater inlet (73) is communicated with each other.
5. The pure electric commercial vehicle thermal management system according to claim 4, characterized in that: pure electric commercial car thermal management system still includes warm braw core (23), two (21) of evaporimeter, air-blower two (22) and electronic expansion valve two (2), the export of warm braw core (23) communicates with each other with the entry of warm braw core (23) after water pump two (91), water heater (9) in proper order, the pipeline between one end and first entry (61) of electronic expansion valve two (2), condenser (32) communicates with each other, and the other end of electronic expansion valve two (2) communicates with each other with the pipeline between compressor (31), the second export (72) behind evaporimeter two (21), and warm braw core (23) set up between evaporimeter two (21), air-blower two (22).
6. A pure electric commercial vehicle thermal management system according to claim 1 or 2, characterized in that: the pure electric commercial vehicle heat management system further comprises a first evaporator (11), a first air blower (12) and a first electronic expansion valve (1), one end of the first electronic expansion valve (1) is communicated with a pipeline between the first inlet (61) and the condenser (32), the other end of the first electronic expansion valve (1) is communicated with a pipeline between the compressor (31) and the first outlet (72) after passing through the first evaporator (11), and the first air blower (12) is arranged beside the first evaporator (11).
7. A pure electric commercial vehicle thermal management system according to claim 1 or 2, characterized in that: the condenser (32) is communicated with the first inlet (61) through an electronic expansion valve III (3).
8. A use method of the pure electric commercial vehicle thermal management system of claim 1 is characterized in that: the using method comprises at least one of a battery and motor sequential deep cooling process, a battery heating process during heat engine and a motor shallow cooling process;
the starting signals of the battery and the motor in the sequential deep cooling process are that both the power battery (4) and the motor need deep cooling, and the motor needs deep cooling, namely that at least one of the driving motor (5) and the all-in-one controller (52) needs deep cooling; the battery and motor sequential deep cooling process comprises the following three water paths which are conducted simultaneously:
a second outlet (84), a third water pump (41), a power battery (4), a second inlet (63), a second outlet (64) and a second inlet (83);
a first water pump outlet (82), a first water pump (51), a multi-in-one controller (52), a driving motor (5), a second water inlet (73), a second water outlet (74) and a first water inlet (81);
a first outlet (72), a compressor (31), a condenser (32), a first inlet (61), a first outlet (62) and a second inlet (71).
9. The use method of the pure electric commercial vehicle thermal management system according to claim 8, characterized in that: the starting signal of the battery warming process during the heat engine is that the driving motor (5) is the heat engine, and the power battery (4) needs warming; the battery temperature rise process during the heat engine comprises the following two water ways which are conducted simultaneously:
a second outlet (84), a third water pump (41), a power battery (4), a second inlet (63), a second outlet (64) and a second inlet (83);
the motor cryogenic cooling water channel is composed of a first-third outlet (82), a first water pump (51), a multi-in-one controller (52), a driving motor (5), a second inlet (73), a second outlet (74) and a first-third inlet (81).
10. The use method of the pure electric commercial vehicle thermal management system according to claim 8, characterized in that: the starting signal of the motor shallow cooling process is that the temperature of at least one of the all-in-one controller (52) and the driving motor (5) exceeds a set temperature; the shallow cooling process of the motor comprises the following conducted water paths:
the motor shallow cooling water channel is formed by an outlet of the first water pump (51), the all-in-one controller (52), the driving motor (5), the radiator (53) and an inlet of the first water pump (51).
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| EP3623183B1 (en) * | 2018-09-11 | 2020-12-02 | C.R.F. Società Consortile per Azioni | A system for thermal management of the components of a hybrid vehicle |
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| WO2014027507A1 (en) * | 2012-08-13 | 2014-02-20 | カルソニックカンセイ株式会社 | Heat management system for electric vehicle and control method therefor |
| CN106532173A (en) * | 2015-09-15 | 2017-03-22 | 杭州三花研究院有限公司 | Heat exchanger and thermal management system for vehicle |
| CN105644381A (en) * | 2015-12-23 | 2016-06-08 | 奇瑞汽车股份有限公司 | Electric automobile and thermal management system thereof |
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