CN112519533A - Integrated electric air conditioning system for hybrid electric vehicle and control method thereof - Google Patents
Integrated electric air conditioning system for hybrid electric vehicle and control method thereof Download PDFInfo
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- CN112519533A CN112519533A CN202011446189.9A CN202011446189A CN112519533A CN 112519533 A CN112519533 A CN 112519533A CN 202011446189 A CN202011446189 A CN 202011446189A CN 112519533 A CN112519533 A CN 112519533A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 17
- 238000005057 refrigeration Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 description 18
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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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
- B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
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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
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3222—Cooling devices using compression characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
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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
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
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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
- 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
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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 invention provides an integrated electric air conditioning system for a hybrid electric vehicle, which can realize free switching of multiple working modes such as independent refrigeration of an engine compressor, independent refrigeration of an electric compressor, simultaneous refrigeration of the engine and the electric compressor and the like by controlling different electromagnetic valves. The system comprises an engine compressor, a cab loop heat exchanger, an original vehicle condenser, a first thermal expansion valve, a battery and an expansion water tank, wherein a medium output end of the cab loop heat exchanger is connected into a medium input end of the engine compressor through a return pipeline, a medium output end of the engine compressor is connected to a medium input end of the original vehicle condenser, a medium output end of the original vehicle condenser is connected into the first thermal expansion valve of a medium input port of the cab loop heat exchanger, the system further comprises an integrated unit, and the integrated unit specifically comprises an electric compressor, a condenser, a heat exchange device, a second thermal expansion valve, an electronic water pump, a solenoid valve A, a solenoid valve B and a solenoid valve C.
Description
Technical Field
The invention relates to the technical field of automobile wheel driving units, in particular to an integrated electric air conditioning system for a hybrid electric automobile, and further provides a control method of the system.
Background
The air conditioner for the hybrid electric vehicle is a compressor driven by an engine, and the engine cannot be stopped when a cab needs to be refrigerated, so that the energy consumption is high; and when the battery temperature is too high and the discharge cannot be realized, the compressor cannot work, so that the electric air conditioning system fails.
Disclosure of Invention
In view of the above problems, the present invention provides an integrated electric air conditioning system for a hybrid electric vehicle, which can realize free switching of multiple working modes, such as independent refrigeration of an engine compressor, independent refrigeration of an electric compressor, simultaneous refrigeration of the engine and the electric compressor, and the like, by controlling different electromagnetic valves.
An integrated electric air conditioning system for a hybrid electric vehicle is characterized by comprising an engine compressor, a cab loop heat exchanger, a primary vehicle condenser, a first thermal expansion valve, a battery and an expansion water tank, wherein a medium output end of the cab loop heat exchanger is connected to a medium input end of the engine compressor through a return pipeline, a medium output end of the engine compressor is connected to a medium input end of the primary vehicle condenser, a medium output end of the primary vehicle condenser is connected to the first thermal expansion valve of a medium input port of the cab loop heat exchanger, and the integrated electric air conditioning system is characterized in that: the integrated unit comprises an electric compressor, a condenser, a heat exchange device, a second thermostatic expansion valve, an electronic water pump, a solenoid valve A, a solenoid valve B and a solenoid valve C, wherein a medium output end of the electric compressor is connected with a medium output port of the condenser, the medium output port of the condenser is provided with two branch pipes which are respectively a first branch pipe and a second branch pipe, the first branch pipe is connected with an input end of the first thermostatic expansion valve after being connected with the solenoid valve B, the second branch pipe is connected with an input end of the second thermostatic expansion valve of a medium inlet of the heat exchanger after being connected with the solenoid valve A, the medium outlet of the heat exchanger is connected with the medium inlet of the electric compressor, a pipeline of the medium inlet of the electric compressor is also connected with a return pipeline of the cab loop heat exchanger after being connected with the solenoid valve C through a Peng copper pipe, the heat exchanger embeds there is the cooling water route, the water cooling system backward flow mouth of battery is passed through to heat exchanger's water-cooling pipeline output, the water cooling system delivery outlet of battery communicates expansion tank, electronic pump in order and inserts behind the water-cooling pipeline's water entry.
It is further characterized in that:
a cab blower is arranged on the outer side of the cab loop heat exchanger, an original vehicle cooling fan is arranged on one side of an original vehicle condenser, and a cooling fan is arranged on one side of the condenser;
in the circuit of the electric compressor, the compressor is used for compressing low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant; the condenser is used for condensing the high-temperature high-pressure gaseous refrigerant into a high-temperature medium-pressure liquid refrigerant; the function of the heat radiation fan is to rapidly disperse the heat released in the condensation process of the refrigerant into the air in a mode of increasing air convection; the second thermostatic expansion valve is used for throttling and atomizing the high-temperature medium-pressure liquid refrigerant to form a low-temperature low-pressure fog-state refrigerant; the heat exchanger is used for evaporating the atomized refrigerant, and the refrigerant absorbs heat in the process to realize the refrigeration function of the battery loop; the electronic water pump is used for providing continuous circulating kinetic energy for the cooling liquid in the battery heat dissipation loop; the electromagnetic valve A is used for controlling the on-off of the battery heat dissipation loop; the electromagnetic valve B and the electromagnetic valve C jointly control the refrigeration of the electric compressor to the cab heat dissipation loop.
The control method of the integrated electric air conditioning system for the hybrid electric vehicle is characterized in that: when the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, and the electric compressor is in a working state, the integrated air conditioning system can continuously refrigerate the battery loop; when the electromagnetic valve A is closed, the electromagnetic valve B and the electromagnetic valve C are opened, and the electric compressor is in a working state, the integrated electric air conditioning system continuously refrigerates a cab loop; when the three electromagnetic valves are all opened, the integrated electric air conditioning system simultaneously refrigerates the battery loop and the cab loop.
It is further characterized in that: when the cab loop and the battery loop have no refrigeration request, closing the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C, and simultaneously controlling the electric compressor not to work;
when the cab loop has a refrigeration request, the battery loop has no refrigeration request and the engine does not need to be stopped, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are closed, the engine compressor independently refrigerates the cab loop, and the electric compressor does not work;
when a refrigeration request is made on a cab loop and a battery loop does not have the refrigeration request, the engine needs to be stopped or is stopped, and the electric compressor has no fault, the electromagnetic valve A is closed, the electromagnetic valve B and the electromagnetic valve C are opened, and the electric compressor independently refrigerates the cab loop;
when the cab loop has no refrigeration request, the battery loop has a refrigeration request and the electric compressor has no fault, the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, and meanwhile, the electric compressor is controlled to work to refrigerate the battery loop;
when the cab loop has no refrigeration request, the battery loop has a refrigeration request, and the electric compressor has a fault or the battery has too low temperature and no discharge capacity, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are opened, the engine is controlled not to stop or be forcibly started, and the electric air conditioner of the engine is used for refrigerating the battery loop;
when the cab loop and the battery loop both have refrigeration requests, the engine does not need to be stopped, and the electric compressor has no fault, the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, the engine compressor independently refrigerates the cab loop, and the electric compressor independently refrigerates the cab loop;
when the cab loop and the battery loop both have refrigeration requests, the engine needs to be stopped or is stopped, and the electric compressor has no fault, the electromagnetic valve A, B, C is opened, and the electric compressor simultaneously refrigerates the cab loop and the battery loop;
when the cab loop and the battery loop both have refrigeration requests and the electric compressor fails, the electromagnetic valve A, B, C is opened, the engine is controlled not to stop or forcibly started, and the engine compressor simultaneously refrigerates the cab loop and the battery loop.
After the system is adopted, the free switching of multiple working modes such as the independent refrigeration of the engine compressor, the independent refrigeration of the electric compressor, the simultaneous refrigeration of the engine and the electric compressor and the like can be realized by controlling different electromagnetic valves, and the reliability of the system is improved by adopting a double-power source refrigeration system, so that the refrigeration requirements of key parts can be met under most conditions; the switching of multiple working modes is realized through the electromagnetic valve, the optimal working mode can be selected according to requirements, and the electromagnetic valve is efficient and flexible.
Drawings
Fig. 1 is a block diagram showing the structure of the present invention.
Detailed Description
An integrated electric air conditioning system for a hybrid electric vehicle is disclosed, which is shown in figure 1 and comprises an engine compressor, a cab loop heat exchanger, an original vehicle condenser, a first thermal expansion valve, a battery and an expansion water tank, wherein a medium output end of the cab loop heat exchanger is connected to a medium input end of the engine compressor through a return pipeline, a medium output end of the engine compressor is connected to a medium input end of the original vehicle condenser, a medium output end of the original vehicle condenser is connected to the first thermal expansion valve of a medium input port of the cab loop heat exchanger, the integrated air conditioning system further comprises an integrated unit, the integrated unit specifically comprises an electric compressor, a condenser, a heat exchange unit, a second thermal expansion valve, an electronic water pump, an electromagnetic valve A, an electromagnetic valve B and an electromagnetic valve C, the medium output end of the electric compressor is connected to, The water-cooled expansion tank comprises a first branch pipe, a second branch pipe, the first branch pipe is connected with an input end of a first thermal expansion valve after being connected with an electromagnetic valve B, the second branch pipe is connected with an input end of a second thermal expansion valve of a medium inlet of a heat exchanger after being connected with an electromagnetic valve A, a medium outlet of the heat exchanger is connected with a medium inlet of an electric compressor, a pipeline of the medium inlet of the electric compressor is further connected with a return pipeline of a cab loop heat exchanger after being connected with an electromagnetic valve C through a Peng copper pipe, a cooling water channel is arranged in the heat exchanger, the output end of the water-cooled pipeline of the heat exchanger passes through a water-cooled system return port of a battery, the output.
A cab blower is arranged on the outer side of the cab loop heat exchanger, an original vehicle cooling fan is arranged on one side of an original vehicle condenser, and a cooling fan is arranged on one side of the condenser;
in the circuit of the electric compressor, the compressor is used for compressing low-temperature and low-pressure gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant; the condenser is used for condensing the high-temperature high-pressure gaseous refrigerant into a high-temperature medium-pressure liquid refrigerant; the function of the heat radiation fan is to rapidly disperse the heat released in the condensation process of the refrigerant into the air in a mode of increasing air convection; the second thermostatic expansion valve is used for throttling and atomizing the high-temperature medium-pressure liquid refrigerant to form a low-temperature low-pressure fog-state refrigerant; the heat exchanger is used for evaporating the atomized refrigerant, and the refrigerant absorbs heat in the process to realize the refrigeration function of the battery loop; the electronic water pump is used for providing continuous circulating kinetic energy for the cooling liquid in the battery heat dissipation loop; the electromagnetic valve A is used for controlling the on-off of the battery heat dissipation loop; the electromagnetic valve B and the electromagnetic valve C jointly control the refrigeration of the electric compressor to the cab heat dissipation loop.
The control method of the integrated electric air conditioning system for the hybrid electric vehicle comprises the following steps: when the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, and the electric compressor is in a working state, the integrated air conditioning system can continuously refrigerate the battery loop; when the electromagnetic valve A is closed, the electromagnetic valve B and the electromagnetic valve C are opened, and the electric compressor is in a working state, the integrated electric air conditioning system continuously refrigerates a cab loop; when the three electromagnetic valves are all opened, the integrated electric air conditioning system simultaneously refrigerates the battery loop and the cab loop.
When the cab loop and the battery loop have no refrigeration request, closing the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C, and simultaneously controlling the electric compressor not to work;
when the cab loop has a refrigeration request, the battery loop has no refrigeration request and the engine does not need to be stopped, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are closed, the engine compressor independently refrigerates the cab loop, and the electric compressor does not work;
when a refrigeration request is made on a cab loop and a battery loop does not have the refrigeration request, the engine needs to be stopped or is stopped, and the electric compressor has no fault, the electromagnetic valve A is closed, the electromagnetic valve B and the electromagnetic valve C are opened, and the electric compressor independently refrigerates the cab loop;
when the cab loop has no refrigeration request, the battery loop has a refrigeration request and the electric compressor has no fault, the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, and meanwhile, the electric compressor is controlled to work to refrigerate the battery loop;
when the cab loop has no refrigeration request, the battery loop has a refrigeration request, and the electric compressor has a fault or the battery has too low temperature and no discharge capacity, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are opened, the engine is controlled not to stop or be forcibly started, and the electric air conditioner of the engine is used for refrigerating the battery loop;
when the cab loop and the battery loop both have refrigeration requests, the engine does not need to be stopped, and the electric compressor has no fault, the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, the engine compressor independently refrigerates the cab loop, and the electric compressor independently refrigerates the cab loop;
when the cab loop and the battery loop both have refrigeration requests, the engine needs to be stopped or is stopped, and the electric compressor has no fault, the electromagnetic valve A, B, C is opened, and the electric compressor simultaneously refrigerates the cab loop and the battery loop;
when the cab loop and the battery loop both have refrigeration requests and the electric compressor fails, the electromagnetic valve A, B, C is opened, the engine is controlled not to stop or forcibly started, and the engine compressor simultaneously refrigerates the cab loop and the battery loop.
The system can realize free switching of multiple working modes such as independent refrigeration of an engine compressor, independent refrigeration of an electric compressor, simultaneous refrigeration of the engine and the electric compressor and the like by controlling different electromagnetic valves, adopts a double-power-source refrigeration system, improves the reliability of the system, and ensures that the refrigeration requirements of key parts can be met under most conditions; the switching of multiple working modes is realized through the electromagnetic valve, the optimal working mode can be selected according to requirements, and the electromagnetic valve is efficient and flexible.
The beneficial effects are as follows:
compared with an engine compressor single refrigeration system, the system can relieve the restriction of the refrigeration of a cab loop on the shutdown of the engine and improve the energy-saving effect of the hybrid electric vehicle;
compared with an engine compressor single refrigeration system, the motor compressor is added, so that the noise of the vehicle is reduced, and the NVH performance of the whole vehicle is improved;
compared with an independent refrigerating system of the electric compressor, the power and the volume of the electric compressor can be reduced, so that the cost is saved;
compared with a vehicle comprising two independent refrigerating systems of an engine compressor and an electric compressor, the refrigerating effect of a cab loop and a battery loop can be ensured as long as one refrigerating system has no fault, and the reliability of the system is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an integrated electric air conditioning system for hybrid vehicle, its includes engine compressor, driver's cabin return circuit heat exchanger, former car condenser, first thermal expansion valve, battery, expansion tank, the medium output of driver's cabin return circuit heat exchanger inserts through return line the medium input of engine compressor, the medium output of engine compressor is connected to former car condenser's medium input, former car condenser's medium output inserts the first thermal expansion valve of driver's cabin return circuit heat exchanger's medium input port, its characterized in that: the integrated unit comprises an electric compressor, a condenser, a heat exchange device, a second thermostatic expansion valve, an electronic water pump, a solenoid valve A, a solenoid valve B and a solenoid valve C, wherein a medium output end of the electric compressor is connected with a medium output port of the condenser, the medium output port of the condenser is provided with two branch pipes which are respectively a first branch pipe and a second branch pipe, the first branch pipe is connected with an input end of the first thermostatic expansion valve after being connected with the solenoid valve B, the second branch pipe is connected with an input end of the second thermostatic expansion valve of a medium inlet of the heat exchanger after being connected with the solenoid valve A, the medium outlet of the heat exchanger is connected with the medium inlet of the electric compressor, a pipeline of the medium inlet of the electric compressor is also connected with a return pipeline of the cab loop heat exchanger after being connected with the solenoid valve C through a Peng copper pipe, the heat exchanger embeds there is the cooling water route, the water cooling system backward flow mouth of battery is passed through to heat exchanger's water-cooling pipeline output, the water cooling system delivery outlet of battery communicates expansion tank, electronic pump in order and inserts behind the water-cooling pipeline's water entry.
2. The integrated electric air conditioning system for a hybrid electric vehicle according to claim 1, characterized in that: the heat exchanger of the cab loop is characterized in that a cab air blower is arranged on the outer side of the heat exchanger of the cab loop, an original vehicle cooling fan is arranged on one side of an original vehicle condenser, and the cooling fan is arranged on one side of the condenser.
3. The control method of the integrated electric air conditioning system for the hybrid electric vehicle is characterized in that: when the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, and the electric compressor is in a working state, the integrated air conditioning system can continuously refrigerate the battery loop; when the electromagnetic valve A is closed, the electromagnetic valve B and the electromagnetic valve C are opened, and the electric compressor is in a working state, the integrated electric air conditioning system continuously refrigerates a cab loop; when the three electromagnetic valves are all opened, the integrated electric air conditioning system simultaneously refrigerates the battery loop and the cab loop.
4. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop and the battery loop have no refrigeration request, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are closed, and meanwhile, the electric compressor is controlled not to work.
5. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop has a refrigeration request, the battery loop has no refrigeration request and the engine does not need to be stopped, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are closed, the engine compressor independently refrigerates the cab loop, and the electric compressor does not work.
6. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop has a refrigeration request and the battery loop has no refrigeration request, the engine needs to be stopped or is stopped, and the electric compressor has no fault, the electromagnetic valve A is closed, the electromagnetic valve B and the electromagnetic valve C are opened, and the electric compressor independently refrigerates the cab loop.
7. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop has no refrigeration request, the battery loop has a refrigeration request and the electric compressor has no fault, the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, and meanwhile, the electric compressor is controlled to work to refrigerate the battery loop.
8. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop has no refrigeration request, the battery loop has a refrigeration request, and the electric compressor has a fault or the battery temperature is too low and has no discharge capacity, the electromagnetic valve A, the electromagnetic valve B and the electromagnetic valve C are opened, the engine is controlled not to stop or be forcibly started, and the electric air conditioner of the engine is used for refrigerating the battery loop.
9. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop and the battery loop both have refrigeration requests, the engine does not need to be stopped, and the electric compressor has no fault, the electromagnetic valve A is opened, the electromagnetic valve B and the electromagnetic valve C are closed, the engine compressor independently refrigerates the cab loop, and the electric compressor independently refrigerates the cab loop.
10. The method of controlling an integrated electric air conditioning system for a hybrid vehicle according to claim 3, characterized in that: when the cab loop and the battery loop both have refrigeration requests, the engine needs to be stopped or is stopped, and the electric compressor has no fault, the electromagnetic valve A, B, C is opened, and the electric compressor simultaneously refrigerates the cab loop and the battery loop; when the cab loop and the battery loop both have refrigeration requests and the electric compressor fails, the electromagnetic valve A, B, C is opened, the engine is controlled not to stop or forcibly started, and the engine compressor simultaneously refrigerates the cab loop and the battery loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011446189.9A CN112519533A (en) | 2020-12-11 | 2020-12-11 | Integrated electric air conditioning system for hybrid electric vehicle and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011446189.9A CN112519533A (en) | 2020-12-11 | 2020-12-11 | Integrated electric air conditioning system for hybrid electric vehicle and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112519533A true CN112519533A (en) | 2021-03-19 |
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| CN202011446189.9A Pending CN112519533A (en) | 2020-12-11 | 2020-12-11 | Integrated electric air conditioning system for hybrid electric vehicle and control method thereof |
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