CN113071286A - Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method - Google Patents

Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method Download PDF

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Publication number
CN113071286A
CN113071286A CN202110429566.6A CN202110429566A CN113071286A CN 113071286 A CN113071286 A CN 113071286A CN 202110429566 A CN202110429566 A CN 202110429566A CN 113071286 A CN113071286 A CN 113071286A
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China
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temperature
fuel cell
way valve
heat
air conditioner
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CN202110429566.6A
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Chinese (zh)
Inventor
宋大凤
宁竞
曾小华
王诗元
牛超凡
武庆涛
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Jilin University
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Jilin University
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Priority to CN202110429566.6A priority Critical patent/CN113071286A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392Air-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00321Heat exchangers for air-conditioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485Valves for air-conditioning devices, e.g. thermostatic valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/22Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/30Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
    • B60L58/32Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40Application of hydrogen technology to transportation, e.g. using fuel cells

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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)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Fuel Cell (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a fuel cell automobile integrated heat management system based on a heat pump air conditioner and a control method, wherein a fuel cell heat management loop comprises a fuel cell, a radiator, a water pump and a three-way valve; the power battery heat management loop comprises a power battery, a radiator, a water pump and a three-way valve; the motor heat management loop comprises a motor, a motor controller, a water pump, a radiator and a three-way valve; the passenger compartment thermal management loop includes a passenger compartment, an HVAC system, a switching device, and a three-way valve. The invention also discloses a control method of the system. The method comprises the steps of firstly judging the running conditions of the whole vehicle through the ambient temperature, and then comprehensively judging the opening and closing states of a switching device and three-way valves of all loops according to the temperature of all loops, so that the high-efficiency utilization of heat of the integrated heat management of the whole vehicle is realized. The invention reduces the energy consumed by the traditional PTC heating by introducing the heat pump air conditioner, has simple control and reasonable structure, and is beneficial to improving the energy utilization rate and the economical efficiency of the fuel cell automobile.

Description

Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method
Technical Field
The invention belongs to the field of fuel cell automobiles, and particularly relates to a heat pump air conditioner-based fuel cell automobile integrated heat management system and a control method thereof.
Background
As an important component of the current new energy automobile, the fuel cell automobile is a nonlinear, multivariable and time-varying complex system, and the thermal management level of the fuel cell automobile determines the performance and the service life of the whole automobile. The fuel cell can maintain high energy conversion efficiency when being stabilized at 60-80 ℃. When the temperature of the fuel cell is too low during operation, the impedance of the cell is increased, the polarization is large, the overall performance of the fuel cell is reduced, and the efficiency is reduced; when the operating temperature of the fuel cell is too high, the proton exchange membrane is dehydrated, and safety accidents are easily caused. For the thermal management of the power battery, the performance of the battery is affected by the over-high or under-low temperature during the charging and discharging processes of the battery, and particularly, the battery may explode when the temperature of the battery is over-high. Regarding the thermal management of the driving motor, the motor system as an energy conversion unit of a fuel cell vehicle is converted into heat due to inevitable loss during the energy conversion process, and if the heat is not dissipated in time, the service life and the service performance of the motor are affected.
How to rapidly increase the temperature of the fuel cell in a low-temperature environment is a hot research point of current thermal management. Existing fuel cell vehicles, including toyota Mirai and modern NEXO, are heated using conventional PTC. The PTC heating can be used for rapidly increasing the temperature of the fuel cell, but the problem of large energy consumption of the whole vehicle in a low-temperature environment is also brought. Therefore, a reasonable fuel cell vehicle integrated thermal management system and control method are needed to improve energy utilization and overall vehicle economy. The invention discloses a fuel cell heat management system with phase change heat storage and preheating functions, which can store the residual heat of a fuel cell in a phase change heat exchanger and is used for preheating the fuel cell by a liquid circuit and a gas circuit or insulating the fuel cell, for example, Chinese patent publication No. CN111463453A, publication No. 2020-07-28; in addition, the waste heat of the fuel cell can heat the air inlet, the lithium battery or the passenger cabin, so that the energy utilization rate is improved. Also, for example, patent application publication No. CN111855247A, published as 2020-10-30, discloses an electric vehicle heat pump air conditioner testing system and an electric vehicle thermal management test bench. The heat pump air-conditioning system is used for testing the heat pump air-conditioning system of the electric vehicle, the heat pump air-conditioning system comprises a compressor, a four-way reversing valve, an in-vehicle heat exchanger, an expansion valve and an out-vehicle heat exchanger, the energy consumption of the whole vehicle can be further optimized, the energy-saving aim is achieved, and the detection accuracy and efficiency are improved. None of the above patents take into account thermal management of the heat pump air conditioner with other components of the fuel cell vehicle.
In order to overcome the technical defects, the invention provides a fuel cell automobile integrated heat management system based on a heat pump air conditioner and a control method thereof.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a fuel cell automobile integrated heat management system based on a heat pump air conditioner and a control method thereof.
The invention provides a heat pump air conditioner-based fuel cell automobile integrated heat management system which comprises a fuel cell heat management loop, a motor heat management loop, a passenger cabin heat management loop and a power battery heat management loop. The fuel cell heat management loop comprises a fuel cell, a first radiator, a first water pump and a first three-way valve; the motor heat management loop comprises a motor, a motor controller, a second water pump, a second radiator and a second three-way valve; the passenger cabin heat management loop comprises a passenger cabin, an HVAC system, a switching device and a three-way valve III; the power battery loop comprises a power battery, a radiator III, a water pump III and a three-way valve IV.
The fuel cell, the three-way valve I, the radiator I and the water pump I in the fuel cell heat management loop are sequentially connected; a motor, a motor controller, a water pump II and a radiator II in the motor heat management loop are sequentially connected; the passenger cabin, the HVAC system, the three-way valve and the switching device in the passenger cabin heat management loop are sequentially connected; a power battery, a three-way valve IV, a water pump III and a radiator III in the power battery loop are sequentially connected; the branches of the four heat management loops all pass through the heat exchanger, the four three-way valves are all in a closed state in a normal state, at the moment, each heat management loop does not pass through the heat exchanger, and after the three-way valves are opened, the loops perform heat exchange through the heat exchanger.
The invention provides a control method of a fuel cell automobile integrated thermal management system based on a heat pump air conditioner, which comprises the following steps: firstly, judging the running condition of the whole vehicle according to the environmental temperature, and dividing the running of the whole vehicle into a low-temperature mode, a normal running mode and a high-temperature mode; respectively executing corresponding control methods according to different operation modes; when the whole vehicle is in a low-temperature mode, the heat pump air conditioner is started through the switching device; if the temperature of the fuel cell is lower than the temperature low threshold value and the temperature of the power cell is lower than the temperature low threshold value, the temperature of the fuel cell and the temperature of the power cell are too low and need to be heated, and at the moment, the fuel cell and the power cell are heated by utilizing a heat pump air conditioner; when the temperature of the fuel cell is larger than the low threshold value, judging whether the temperature of the motor is smaller than the low threshold value of the temperature of the motor, if so, judging whether the temperature of the power cell is smaller than the low threshold value of the temperature of the power cell, and if so, heating the power cell and the motor by utilizing a heat pump air conditioner; when the whole vehicle is in a high-temperature mode, the heat pump air conditioner is closed through the switching device, whether the temperature of the fuel cell is greater than a high-temperature threshold value is judged, if so, the fuel cell needs to dissipate heat, and if the temperature of the passenger compartment and the temperature of the power cell are less than the high-temperature threshold value, the difference of the temperature levels of the passenger compartment and the power cell can be utilized to dissipate heat of the fuel cell by utilizing the relative low-temperature levels of the passenger compartment and the power cell; if the temperature of the fuel cell is lower than the high temperature threshold value, then the relative low temperature level of the passenger cabin and the power battery is considered for heat dissipation of the motor; the specific embodiment is as follows.
When the air conditioner is in the low-temperature mode, the heat pump air conditioner is started through the switching device, whether the temperature of the fuel cell is lower than the temperature low threshold value is judged firstly, if the temperature of the fuel cell is lower than the temperature low threshold value, whether the temperature of the power cell is lower than the temperature low threshold value is judged, if the temperature of the power cell is lower than the temperature low threshold value, the three-way valves I, III and IV are started, and at the moment, the fuel cell; if the temperature of the fuel cell is higher than the temperature low threshold value, judging whether the temperature of the motor is lower than the temperature low threshold value, if so, judging whether the temperature of the power cell is lower than the temperature low threshold value, if so, opening the second valve, the third valve and the fourth valve, and heating the motor and the power cell by utilizing a heat pump air conditioner; when the heat pump air conditioner is in a high-temperature mode, the heat pump air conditioner is closed through the switching device, whether the temperature of the fuel cell is higher than the temperature high threshold value is judged, if so, whether the temperature of the passenger compartment and the temperature of the power cell are lower than the temperature high threshold value is judged, if so, the three-way valves I, III and IV are opened, and at the moment, the low temperature of the passenger compartment and the low temperature of the power cell are utilized to cool the fuel cell; if the temperature of the fuel cell is lower than the temperature high threshold, judging whether the temperature of the motor is higher than the temperature high threshold, if so, judging whether the temperature of the passenger compartment and the temperature of the power cell are lower than the temperature high threshold, and if so, opening valves II, III and IV, and cooling the motor by utilizing the low temperatures of the passenger compartment and the power cell; and the other conditions are operated according to the normal operation state of each thermal management loop.
Compared with the prior art, the invention has the following advantages:
1) the integrated heat management system comprehensively considers the heat management of the passenger compartment, the fuel cell, the power battery and the motor of the fuel cell automobile, introduces a heat pump air conditioner into the system and couples independent heat management loops.
2) According to the invention, the heat pump air conditioner is introduced to judge the running environment of the whole vehicle, and the heat management loops in low-temperature and high-temperature environments are respectively controlled, so that the adaptability of the whole vehicle in different environments is improved.
3) The integrated heat management system can reduce the energy consumed by the PTC under the low-temperature environment, is simple to control and reasonable in structure, and improves the economical efficiency and the energy utilization rate of the fuel cell automobile.
Drawings
The above aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a heat pump air conditioner-based fuel cell vehicle integrated thermal management system according to an embodiment of the invention;
in the figure: 1-fuel cell, 2-three-way valve I, 3-radiator I, 4-water pump I, 5-motor controller, 6-motor, 7-three-way valve II, 8-radiator II, 9-water pump II, 10-heat exchanger, 11-three-way valve III, 12-radiator III, 13-water pump III, 14-three-way valve IV, a-electromagnetic valve I, b-electromagnetic valve II and c-electromagnetic valve III.
Fig. 2 is a schematic diagram of a switching device according to an embodiment of the present invention.
Fig. 3 is a detailed flowchart of the operation according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships, and are only relational terms determined to facilitate the description of the relationships between the components of the present invention, and do not denote any component, and should not be construed as limiting the present invention; the specific meaning can be understood by those of ordinary skill in the art as a matter of case.
As shown in fig. 1, the integrated thermal management system for a fuel cell vehicle based on a heat pump air conditioner provided by the invention comprises a fuel cell thermal management loop, a motor thermal management loop, a passenger cabin thermal management loop and a power battery thermal management loop. The fuel cell heat management loop comprises a fuel cell 1, a radiator I3, a water pump I4 and a three-way valve I2; the motor heat management loop comprises a motor 6, a motor controller 5, a second water pump 9, a second radiator 8 and a second three-way valve 7; the passenger compartment heat management loop comprises a passenger compartment, an HVAC system and a three-way valve III 11; the power battery loop comprises a power battery, a radiator III 12, a water pump III 13 and a three-way valve IV 14.
A fuel cell 1, a three-way valve I2, a radiator I3 and a water pump 4 in the fuel cell heat management loop are sequentially connected; a motor 6, a motor controller 5, a second water pump 9, a second radiator 8 and a second three-way valve 7 in the motor heat management loop are sequentially connected; the passenger cabin, the HVAC system and the three-way valve III 11 in the passenger cabin heat management loop are sequentially connected; a power battery, a three-way valve IV 14, a water pump III 13 and a radiator III 12 in the power battery loop are sequentially connected; the branches of the four thermal management circuits all pass through the heat exchanger 10, in a normal state, the four three-way valves are all in a closed state, at the moment, each thermal management circuit does not pass through the heat exchanger 10, and after the three-way valves are opened, the circuits perform heat exchange through the heat exchanger 10.
As shown in fig. 2, the flow direction of the external circuit is realized by controlling the opening and closing of the first solenoid valve a, the second solenoid valve b, and the third solenoid valve c. When the first solenoid valve a is opened and the second solenoid valve b and the third solenoid valve c are closed, the flow direction of the external circuit is anticlockwise as shown by a solid arrow; when the first solenoid valve a is closed and the second and third solenoid valves b and c are open, the external circuit flow direction is clockwise as indicated by the hollow arrow.
As shown in fig. 3, the control method of the integrated thermal management system of the fuel cell vehicle based on the heat pump air conditioner provided by the invention comprises the following steps: firstly, judging the running condition of the whole vehicle according to the environmental temperature, and dividing the running of the whole vehicle into a low-temperature mode, a normal running mode and a high-temperature mode; if the ambient temperature is less than the ambient low threshold T1, the mode is low-temperature mode; if the environment temperature is greater than an environment high threshold value T2, the mode is a high-temperature mode, otherwise, the mode is a normal operation mode; respectively executing corresponding control methods according to different operation modes; when the whole vehicle is in a low-temperature mode, the heat pump air conditioner is started through the switching device; if the temperature of the fuel cell 1 is less than the temperature low threshold value T3 and the temperature of the power cell is less than the temperature low threshold value T9, it indicates that the temperature of the fuel cell 1 and the temperature of the power cell are too low and heating is needed, and the heat pump air conditioner is used for heating the fuel cell 1 and the power cell; when the temperature of the fuel cell 1 is larger than the low threshold value, judging whether the temperature of the motor 6 is smaller than the low threshold value T5 of the temperature, if so, judging whether the temperature of the power battery is smaller than the low threshold value T9 of the temperature, if so, utilizing a heat pump air conditioner to heat the power battery and the motor 6; when the whole vehicle is in a high-temperature mode, the heat pump air conditioner is turned off through the switching device, whether the temperature of the fuel cell 1 is greater than a high-temperature threshold value T4 is judged, if so, the fuel cell 1 needs to dissipate heat, and if the temperature of the passenger compartment and the temperature of the power cell are less than high-temperature threshold values T8 and T10, the difference of the temperature levels of the passenger compartment and the power cell can be utilized to dissipate heat of the fuel cell 1; if the temperature of the fuel cell 1 is lower than its high temperature threshold T4, then the relatively low temperature levels of the passenger compartment and the power cell are considered for dissipating heat from the motor 6; the specific embodiment is as follows.
When the heat pump air conditioner is in the low-temperature mode, the heat pump air conditioner is started through the switching device, whether the temperature of the fuel cell 1 is smaller than the temperature low threshold value T3 or not is judged firstly, if the temperature of the fuel cell 1 is smaller than the temperature low threshold value T9 or not is judged, if the temperature of the power cell is smaller than the temperature low threshold value T9 or not, the three-way valve I2, the three-way valve III 11 and the three-way valve IV 14 are started, and at the moment, the; if the temperature of the fuel cell 1 is greater than the temperature low threshold value T3, judging whether the temperature of the motor 6 is less than the temperature low threshold value T5, if so, judging whether the temperature of the power cell is less than the temperature low threshold value T9, if so, opening a second three-way valve 7, a third three-way valve 11 and a fourth three-way valve 14, and at the moment, utilizing a heat pump air conditioner to heat the motor 6 and the power cell; when the vehicle is in the high-temperature mode, the heat pump air conditioner is turned off through the switching device, whether the temperature of the fuel cell 1 is higher than the temperature high threshold value T4 is judged, if so, whether the temperature of the passenger compartment and the temperature of the power cell are lower than the temperature high threshold values T8 and T10 is judged, if so, the three-way valve I2, the three-way valve III 11 and the three-way valve IV 14 are opened, and at the moment, the low temperature of the passenger compartment and the power cell is utilized to cool the fuel cell 1; if the temperature of the fuel cell 1 is less than the high temperature threshold T4, judging whether the temperature of the motor 6 is greater than the high temperature threshold T6, if so, judging whether the temperature of the passenger compartment and the temperature of the power cell are less than the high temperature thresholds T8 and T10, if so, opening a second valve 7, a third three-way valve 11 and a fourth three-way valve 14, and cooling the motor 6 by utilizing the low temperatures of the passenger compartment and the power cell; and the other conditions are operated according to the normal operation state of each thermal management loop.
Parts which are not described in the invention can be realized by adopting or referring to the prior art. In the description of the specification, a schematic representation of terms does not necessarily refer to the same embodiment or example. Moreover, the particular features or methods described may be combined as suitable in any of the embodiments.
The embodiments of the present invention are merely exemplary and not restrictive, and those skilled in the art should understand that they can make modifications, substitutions, simplifications, etc. without departing from the spirit and principle of the present invention.

Claims (3)

1. The utility model provides a fuel cell car integration thermal management system based on heat pump air conditioner which characterized in that: the system comprises a fuel cell heat management loop, a motor heat management loop, a passenger cabin heat management loop and a power cell heat management loop; the fuel cell heat management loop comprises a fuel cell, a first radiator, a first water pump and a first three-way valve; the motor heat management loop comprises a motor, a motor controller, a second water pump, a second radiator and a second three-way valve; the passenger cabin heat management loop comprises a passenger cabin, an HVAC system, a switching device and a three-way valve III; the power battery loop comprises a power battery, a radiator III, a water pump III and a three-way valve IV;
the fuel cell, the first temperature sensor, the first three-way valve, the first radiator and the first water pump in the heat management loop of the fuel cell based on the heat pump air conditioner are sequentially connected; a motor, a motor controller, a second water pump, a second radiator and a second three-way valve in the motor heat management loop are sequentially connected; the passenger cabin, the HVAC system, the three-way valve and the switching device in the passenger cabin heat management loop are sequentially connected; a power battery, a three-way valve IV, a water pump III and a radiator III in the power battery loop are sequentially connected; the branches of the four heat management loops all pass through the heat exchanger, the four three-way valves are all in a closed state in a normal state, at the moment, each heat management loop does not pass through the heat exchanger, and after the three-way valves are opened, the loops perform heat exchange through the heat exchanger.
2. The control method of the heat pump air conditioner based fuel cell automobile integrated thermal management system according to claim 1, characterized in that: firstly, judging the running condition of the whole vehicle according to the environmental temperature, and dividing the running of the whole vehicle into a low-temperature mode, a normal running mode and a high-temperature mode; and respectively executing corresponding control methods according to different operation modes.
3. The control method of the heat pump air conditioner based fuel cell automobile integrated thermal management system according to claim 2, characterized in that: when the heat pump air conditioner is in a low-temperature mode, the heat pump air conditioner is started through the switching device, whether the temperature of the fuel cell is lower than the temperature low threshold value is judged firstly, if the temperature of the fuel cell is lower than the temperature low threshold value, whether the temperature of the power cell is lower than the temperature low threshold value is judged, if the temperature of the power cell is lower than the temperature low threshold value, the three-way valve I, the three-way valve III and the three-way valve IV are; if the temperature of the fuel cell is higher than the temperature low threshold value, judging whether the temperature of the motor is lower than the temperature low threshold value, if so, judging whether the temperature of the power cell is lower than the temperature low threshold value, if so, opening a second three-way valve, a third three-way valve and a fourth three-way valve, and at the moment, utilizing a heat pump air conditioner to heat the power cell and the motor; when the heat pump air conditioner is in a high-temperature mode, the heat pump air conditioner is closed through the switching device, whether the temperature of the fuel cell is higher than the temperature high threshold value is judged, if so, whether the temperature of the passenger compartment and the temperature of the power cell are lower than the temperature high threshold value is judged, if so, the three-way valve I, the three-way valve III and the three-way valve IV are opened, and at the moment, the low temperature of the passenger compartment and the low temperature of the power cell are utilized to cool; if the temperature of the fuel cell is lower than the temperature high threshold value, judging whether the temperature of the motor is higher than the temperature high threshold value, if so, judging whether the temperature of the passenger compartment and the temperature of the power cell are lower than the temperature high threshold value, if so, opening a second three-way valve, a third three-way valve and a fourth three-way valve, and cooling the motor by utilizing the low temperatures of the passenger compartment and the power cell; and the other conditions are operated according to the normal operation state of each thermal management loop.
CN202110429566.6A 2021-04-21 2021-04-21 Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method Pending CN113071286A (en)

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CN202110429566.6A CN113071286A (en) 2021-04-21 2021-04-21 Fuel cell automobile integrated thermal management system based on heat pump air conditioner and control method

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CN113733858A (en) * 2021-09-27 2021-12-03 佛山仙湖实验室 Hydrogen fuel cell and power battery hybrid electric vehicle thermal management system
CN113829838A (en) * 2021-10-14 2021-12-24 东风汽车集团股份有限公司 Thermal management system and method for fuel cell vehicle
CN113997748A (en) * 2021-09-29 2022-02-01 黄冈普赫氢能商用车有限公司 Hydrogen energy automobile heat pump system based on multi-channel heat exchanger and hydrogen energy automobile
CN114094137A (en) * 2021-11-22 2022-02-25 北京福田戴姆勒汽车有限公司 Thermal management system of vehicle and vehicle
CN114347867A (en) * 2022-01-07 2022-04-15 吉林大学 Thermal management system and control method for fuel cell vehicle
CN114654966A (en) * 2022-04-29 2022-06-24 浙江吉利控股集团有限公司 Passenger compartment temperature control device, temperature control method and equipment thereof, and storage medium
CN114789650A (en) * 2022-04-22 2022-07-26 岚图汽车科技有限公司 Thermal management method and device for power battery
CN115092014A (en) * 2022-06-15 2022-09-23 一汽解放汽车有限公司 Waste cold recovery whole vehicle thermal management system
CN115991124A (en) * 2021-10-20 2023-04-21 宇通客车股份有限公司 Fuel cell vehicle and low-temperature starting control method and system thereof
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
CN116811522A (en) * 2023-07-05 2023-09-29 一汽解放汽车有限公司 Whole vehicle thermal management system and control method thereof

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CN113581018A (en) * 2021-07-23 2021-11-02 东风汽车集团股份有限公司 Thermal management method, controller, medium and equipment of fuel cell vehicle
CN113581018B (en) * 2021-07-23 2023-12-19 东风汽车集团股份有限公司 Thermal management method, controller, medium and equipment for fuel cell automobile
CN113427968A (en) * 2021-07-28 2021-09-24 中国第一汽车股份有限公司 Automobile heat management system
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CN113696793A (en) * 2021-08-26 2021-11-26 东风汽车集团股份有限公司 Fuel cell thermal management system
CN113696793B (en) * 2021-08-26 2023-05-16 东风汽车集团股份有限公司 Fuel cell thermal management system
CN113733858A (en) * 2021-09-27 2021-12-03 佛山仙湖实验室 Hydrogen fuel cell and power battery hybrid electric vehicle thermal management system
CN113997748A (en) * 2021-09-29 2022-02-01 黄冈普赫氢能商用车有限公司 Hydrogen energy automobile heat pump system based on multi-channel heat exchanger and hydrogen energy automobile
CN113829838A (en) * 2021-10-14 2021-12-24 东风汽车集团股份有限公司 Thermal management system and method for fuel cell vehicle
CN113829838B (en) * 2021-10-14 2023-04-25 东风汽车集团股份有限公司 Fuel cell vehicle thermal management system and method
CN115991124A (en) * 2021-10-20 2023-04-21 宇通客车股份有限公司 Fuel cell vehicle and low-temperature starting control method and system thereof
CN114094137A (en) * 2021-11-22 2022-02-25 北京福田戴姆勒汽车有限公司 Thermal management system of vehicle and vehicle
CN114094137B (en) * 2021-11-22 2023-09-15 北京福田戴姆勒汽车有限公司 Thermal management system of vehicle and vehicle
CN114347867A (en) * 2022-01-07 2022-04-15 吉林大学 Thermal management system and control method for fuel cell vehicle
CN114347867B (en) * 2022-01-07 2023-09-19 吉林大学 Fuel cell automobile thermal management system and control method
CN114789650A (en) * 2022-04-22 2022-07-26 岚图汽车科技有限公司 Thermal management method and device for power battery
CN114654966A (en) * 2022-04-29 2022-06-24 浙江吉利控股集团有限公司 Passenger compartment temperature control device, temperature control method and equipment thereof, and storage medium
CN114654966B (en) * 2022-04-29 2024-04-16 浙江吉利控股集团有限公司 Passenger cabin temperature control device, temperature control method and equipment thereof and storage medium
CN115092014A (en) * 2022-06-15 2022-09-23 一汽解放汽车有限公司 Waste cold recovery whole vehicle thermal management system
CN115092014B (en) * 2022-06-15 2024-05-14 一汽解放汽车有限公司 Whole car thermal management system is retrieved to surplus cold
CN116198275B (en) * 2022-12-23 2024-01-23 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
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
CN116811522A (en) * 2023-07-05 2023-09-29 一汽解放汽车有限公司 Whole vehicle thermal management system and control method thereof

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