CN115447338A - Finished automobile heat management system and method based on gravity assisted heat pipe and multiple heat exchange coupling - Google Patents
Finished automobile heat management system and method based on gravity assisted heat pipe and multiple heat exchange coupling Download PDFInfo
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- CN115447338A CN115447338A CN202211040531.4A CN202211040531A CN115447338A CN 115447338 A CN115447338 A CN 115447338A CN 202211040531 A CN202211040531 A CN 202211040531A CN 115447338 A CN115447338 A CN 115447338A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
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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
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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
- B60H1/00642—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
- B60H1/00807—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 the input being a specific way of measuring or calculating an air or coolant temperature
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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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
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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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
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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
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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
- B60H1/3205—Control means therefor
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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
- 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
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
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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
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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
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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
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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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
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Abstract
The invention discloses a whole vehicle heat management system and a method based on gravity assisted heat pipes and multiple heat exchange coupling.A power battery, a heat pipe heat exchanger, a motor controller, an electromagnetic valve C, a plate exchange refrigerating unit and an electronic water pump are connected in series through a pipeline to form a first flow path, and an electromagnetic valve D is connected in parallel between a water outlet of the electromagnetic valve C and a water inlet of the heat pipe heat exchanger; the plate exchange refrigerating unit, the thermal expansion valve B, the air conditioning electromagnetic valve A and the evaporator are connected in series through pipelines to form a second flow path, the evaporator is arranged in a passenger area, an air return sensor is arranged in the passenger area, the compressor and the condenser are connected in series and then are connected into the second flow path, and the condensing fan is arranged on one side of the condenser. According to the invention, through adding the gravity heat pipe heat exchanger, system integration design and combining with TMS fine temperature control and other schemes, the temperature of heating components of the whole vehicle and a passenger compartment can be effectively regulated, the efficient utilization of energy is realized, and the purposes of cost reduction and efficiency improvement are achieved.
Description
The technical field is as follows:
the invention relates to a whole vehicle heat management system and method based on gravity assisted heat pipes and multiple heat exchange coupling.
Background art:
the most important difference between the pure electric vehicle and the fuel vehicle is that the electrical components are highly integrated, a large number of electrical components generate large heat, and the temperature of the electrical components needs to be controlled to ensure the safety and reliability of the operation of the electrical components; in addition, the requirement of drivers and passengers on the thermal comfort of the passenger compartment is higher and higher, and the whole vehicle thermal management system is more important.
At present, when a heat management system of a whole vehicle runs, the energy loss of a battery can be caused, and the endurance mileage of the vehicle is greatly reduced; in addition, thermal management systems are costly; the reasons for the above problems are as follows:
the battery thermal management system is an important component of the whole vehicle thermal management system and mainly comprises an electric air conditioner compressor, a condenser assembly, an electronic water pump and other related electronic components. The cooling form of the battery is vapor compression type indirect heat exchange or forced convection heat exchange with the atmosphere through a radiator. When the heat management system operates, the two heat exchange modes achieve the purpose of cooling through consuming energy of a large battery, and therefore the cruising ability of the pure electric automobile can be reduced.
The commercial vehicle thermal management system generally comprises two independent thermal management systems: namely an air conditioning system and a water chiller unit. The air conditioning system is mainly used for regulating and controlling the thermal comfort of the passenger compartment and defrosting and demisting; the water chiller is mainly used for heat management of three-electric systems (batteries, motors and motor controllers). The two systems have the problems of overlapping parts, low utilization rate, poor integration and the like.
The existing commercial vehicle air conditioning systems (heating systems and refrigerating systems) mostly pass through simple fixed-frequency or single-stage control logics, cannot be adjusted according to actual refrigerating/heating requirements, reduce the riding comfort of users to a certain extent, and generate unnecessary energy consumption.
The invention content is as follows:
the invention provides a whole vehicle thermal management system and a method based on gravity heat pipes and multiple heat exchange coupling in order to solve the problems in the prior art.
The technical scheme adopted by the invention is as follows: a whole-vehicle heat management system based on gravity heat pipes and multiple heat exchange coupling comprises a power battery, a heat pipe exchanger, a motor controller, an electromagnetic valve C, an electromagnetic valve D, a plate exchange refrigerating unit, an electronic water pump, a thermal expansion valve B, an air conditioning electromagnetic valve A, an evaporator, a compressor, a condenser and a condensing fan,
the power battery, the heat pipe heat exchanger, the motor controller, the electromagnetic valve C, the plate exchange refrigerating unit and the electronic water pump are connected in series through pipelines to form a first flow path, and the water outlet of the electromagnetic valve C and the water inlet of the heat pipe heat exchanger are connected in parallel with an electromagnetic valve D; the plate exchange refrigerating unit, the thermal expansion valve B, the air conditioning electromagnetic valve A and the evaporator are connected in series through pipelines to form a second flow path, the evaporator is arranged in a passenger area, an air return sensor is arranged in the passenger area, the compressor and the condenser are connected in series and then are connected into the second flow path, and the condensing fan is arranged on one side of the condenser.
The invention also discloses a management method of the whole vehicle heat management system based ON the gravity assisted heat pipe and the multiple heat exchange coupling as claimed in claim 1, when the whole vehicle is in an ON gear power supply or the power battery is charged, the whole vehicle VCU wakes up the TMS controller, after the TMS controller completes power-ON self-checking, if the TMS controller receives a starting signal of a refrigeration request, whether the whole vehicle pre-charging is completed is judged, if the VTMS control module receives a signal of completing the pre-charging, the whole vehicle pre-charging is judged to be completed, and the whole vehicle works according to a set heat management mode; the set thermal management modes comprise:
1) Passenger compartment cooling mode:
when the TMS controller receives a refrigeration request, after the TMS controller detects that the whole vehicle is precharged, the TMS controller starts a refrigeration process, the TMS controller firstly opens an air-conditioning electromagnetic valve A and opens a condensing fan, then checks whether an air return sensor and a pressure switch of a passenger area work normally, and under the condition that the air return sensor and the pressure switch work normally, the TMS controller judges whether the whole vehicle is precharged or not again and judges a starting state message of a compressor, the compressor is started according to the state message of the compressor, and meanwhile, the current state of the compressor is fed back to a CAN bus network through the message; the TMS controller presets a passenger area temperature value, and determines the running rotating speed of the compressor according to a passenger area return air sensor;
2) Plate exchange refrigeration and gravity heat pipe heat exchange modes:
the plate heat exchange refrigeration and gravity heat pipe heat exchange mode is a mode for cooling the power battery, the motor and the motor controller, the BMS determines the cooling modes of the power battery, the motor and the motor controller according to the highest monomer temperature value of the power battery and sends a message instruction to the VTMS heat management module, the VTMS heat management module operates according to different working modes and feeds back working states, faults and water temperature states in a heat management system for controlling the power battery, the motor and the motor controller to the CAN bus network;
when the highest temperature TBmax of a battery module of the power battery is higher than 35 ℃, the VCU preferentially starts an unpowered heat exchange mode of gravity heat pipe heat exchange according to a set program and sends a heat exchange request signal of the VTMS controller, the thermostatic expansion valve B is closed, the electromagnetic valve D is closed, the electromagnetic valve C is opened, the electronic water pump is opened, and the heat pipe heat exchanger operates;
when the heat pipe exchanger runs and the highest temperature of a battery module of a power battery fails to reach a set value, a VCU simultaneously sends a plate exchange refrigeration mode request signal containing charging refrigeration and discharging refrigeration to a TMS controller, the TMS controller performs self-checking and simultaneously judges whether the pre-charging of the whole vehicle is completed, and when a VTMS heat management module receives a pre-charging completion instruction sent by the VCU, the VTMS heat management module judges the charging refrigeration and the discharging refrigeration of the whole vehicle and works according to logic set in the TMS controller;
when the plate changes the refrigeration mode, the thermal expansion valve B is opened, the electromagnetic valve D is opened, the electromagnetic valve C is opened, the VTMS thermal management module starts the electronic water pump to operate at 10S, and the TMS controller determines the operation state of the compressor according to the liquid outlet temperature of the power battery, so that the mode that the plate changes the refrigeration mode and the gravity heat pipe heat exchange mode to operate complementarily is realized.
Further, in the passenger compartment refrigeration mode, when the TMS controller inputs a suspended or high level, the TMS controller executes refrigeration to close a refrigeration process, rapidly reduces the frequency to close the compressor, closes the condensing fan and the air conditioning electromagnetic valve after 5s, and feeds back the actual working state of the current compressor through the message of the compressor.
The invention has the following beneficial effects:
1) The gravity heat pipe heat exchanger is a high-efficiency unpowered heat exchanger assembly. When the calorific capacity of the battery module, the motor and the motor controller is relatively low, the gravity heat pipe heat exchanger can be used for cooling, and only a low-power low-voltage electric appliance operates during system operation, so that the energy consumption of the power battery can be greatly reduced, and the purpose of stage heat management is achieved.
2) The TMS controller receives temperature feedback of the battery management module in real time, controls three modes of a standby mode, a self-circulation mode and a refrigeration mode by dividing temperature intervals of three-power and other parts, sets a target temperature value, uses PDI control to realize refined control of the temperature intervals and reduce the running time and power consumption of high-energy-consumption parts (electric compressors).
3) Passenger cabin heating system and refrigerating system receive TMS controller's control equally, and the TMS controller detects passenger cabin return air department temperature, adjusts APTC and electric compressor's power in real time, can effectual accuse refrigerating output/thermal demand, and the temperature interval in the regulation and control car improves the comfort level, reduces the waste of electric quantity.
4) The air conditioning system and the water cooling unit are integrally designed, the system structure is optimized, the number of parts is reduced, the utilization rate is improved, and the cost is reduced. By adding the gravity heat pipe heat exchanger, the system integration design and combining the schemes of TMS fine temperature control and the like, the temperature of heating components of the whole vehicle and the passenger compartment can be effectively regulated, the efficient utilization of energy is realized, and the purposes of cost reduction and efficiency improvement are achieved.
Description of the drawings:
FIG. 1 is a schematic diagram of the operation of a vehicle thermal management system.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the invention relates to a vehicle thermal management system based on gravity assisted heat pipes and multiple heat exchange coupling, which comprises a power battery 1, a heat pipe heat exchanger 2, a motor 3, a motor controller 4, an electromagnetic valve C, an electromagnetic valve D, a plate exchange refrigerating unit 5, an electronic water pump 6, a thermal expansion valve B, an air conditioning electromagnetic valve A, an evaporator 7, a compressor 8, a condenser 9 and a condensing fan 10.
The power battery, the heat pipe heat exchanger, the motor controller, the electromagnetic valve C, the plate exchange refrigerating unit and the electronic water pump are connected in series through a pipeline to form a first flow path, and the water outlet of the electromagnetic valve C and the water inlet of the heat pipe heat exchanger are connected in parallel with the electromagnetic valve D; the plate-exchange refrigerating unit, the thermal expansion valve B, the air-conditioning electromagnetic valve A and the evaporator are connected in series through pipelines to form a second flow path, the evaporator is arranged in a passenger area, a return air sensor is arranged in the passenger area, the compressor and the condenser are connected in series and then are merged into the second flow path, and the condensing fan is arranged on one side of the condenser.
The TMS controller is communicated and cooperated with the whole vehicle and receives the instruction of the key and the sensor, so that the aims of high-efficiency, energy-saving and heat management of the vehicle are fulfilled.
The TMS controller is formed by integrating an automobile-grade chip, a high-grade connector, and other electronic elements on a PCB (printed Circuit Board) and packaging a lightweight shell. The module is a control center of a thermal management system, a whole vehicle supplies power, and signal transmission and feedback of the battery module and the electric compressor are realized through a communication wiring harness; the operation of electronic parts such as an APTC assembly, an evaporator assembly, a condenser assembly, a CHILLER assembly, an electronic water pump and the like is realized by controlling the wire harness to receive and transmit a key instruction and temperature and pressure feedback.
The management method of the invention comprises the following steps:
when the whole vehicle is in an ON gear power state or a power battery is charged, the VCU of the whole vehicle sends an enabling signal (0-2V) to the TMS relay, after the relay is attracted, the positive electrode of the power supply of the TMS controller is conducted, and the TMS controller is awakened.
The TMS controller is electrified for self-checking, judges whether the pre-charging of the whole vehicle is finished or not after receiving a starting signal of a refrigeration request (refrigerating of a passenger compartment/replacing refrigeration of a plate/refrigerating of the passenger compartment and replacing refrigeration of the plate), judges that the pre-charging of the whole vehicle is finished after the TMS controller receives a pre-charging completion instruction sent by a VCU/BMS, and works according to a correspondingly set heat management mode.
The set thermal management modes include:
1) Passenger compartment refrigeration mode:
when the TMS controller receives a refrigeration request, after the whole vehicle is detected to be precharged, the TMS controller starts to execute a refrigeration process, the TMS controller firstly opens the air conditioning electromagnetic valve A and opens the condensing fan, then whether the return air sensor of a passenger area is normal or not is checked, whether a pressure switch is normal or not is checked, whether communication is normal or not is checked, under all normal conditions, the TMS controller judges whether the precharging is completed or not and the state of the compressor (the compressor starting state message judgment) is judged, and the compressor is started according to the compressor message feedback state. And simultaneously, the current state is fed back to the CAN bus network through the message. The TMS controller presets a passenger area temperature value, and determines the running rotating speed of the compressor according to the passenger area return air temperature.
When the TMS controller inputs a suspended or high level, the TMS controller executes a refrigeration closing refrigeration process, rapidly reduces the frequency and closes the compressor, closes the condensing fan and the air conditioner electromagnetic valve A after 5s, and simultaneously feeds back the current actual state through a message.
2) Plate exchange refrigeration and gravity heat pipe heat exchange modes:
the BMS determines the cooling mode of a three-electric system (the power battery, the motor and the motor controller) according to the highest monomer temperature value of the power battery, and sends a message instruction to the VTMS thermal management module, the VTMS thermal management module operates according to different working modes, and simultaneously feeds back the working state, the fault and the water temperature state in the thermal management system for controlling the power battery, the motor and the motor controller to the CAN bus network;
when the highest temperature TBmax of a battery module of the power battery is higher than 35 ℃, the VCU preferentially starts an unpowered heat exchange mode of gravity heat pipe heat exchange according to a set program and sends a heat exchange request signal of the VTMS controller, the thermostatic expansion valve B is closed, the electromagnetic valve D is closed, the electromagnetic valve C is opened, the electronic water pump is opened, and the heat pipe heat exchanger operates;
when the heat pipe heat exchanger operates and the highest temperature of a battery module of a power battery cannot reach a set value, the VCU simultaneously sends a plate exchange refrigeration request signal (charging refrigeration/discharging refrigeration) to the TMS controller, the TMS controller performs self-checking and simultaneously judges whether the pre-charging of the whole vehicle is finished or not, and after the VTMS heat management module receives a pre-charging completion instruction sent by the VCU, the charging refrigeration/discharging refrigeration of the whole vehicle is judged and the whole vehicle works according to logic set in the TMS controller.
When the plate changes the refrigeration (charge refrigeration/discharge refrigeration) mode, the thermal expansion valve B is opened, the electromagnetic valve D is opened, the electromagnetic valve C is opened, the VTMS thermal management module starts the electronic water pump to operate 10S, and the TMS controller determines the operation state of the compressor according to the liquid outlet temperature of the power battery, so that the mode of complementary operation of the plate change refrigeration mode and the gravity heat pipe heat exchange mode is realized.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (3)
1. The utility model provides a whole car thermal management system based on gravity heat pipe and multiple heat transfer coupling which characterized in that: comprises a power battery, a heat pipe heat exchanger, a motor controller, an electromagnetic valve C, an electromagnetic valve D, a plate exchange refrigerating unit, an electronic water pump, a thermal expansion valve B, an air conditioner electromagnetic valve A, an evaporator, a compressor, a condenser and a condensing fan,
the power battery, the heat pipe heat exchanger, the motor controller, the electromagnetic valve C, the plate exchange refrigerating unit and the electronic water pump are connected in series through a pipeline to form a first flow path, and the water outlet of the electromagnetic valve C and the water inlet of the heat pipe heat exchanger are connected in parallel with an electromagnetic valve D; the plate exchange refrigerating unit, the thermal expansion valve B, the air conditioning electromagnetic valve A and the evaporator are connected in series through pipelines to form a second flow path, the evaporator is arranged in a passenger area, an air return sensor is arranged in the passenger area, the compressor and the condenser are connected in series and then are connected into the second flow path, and the condensing fan is arranged on one side of the condenser.
2. The management method of the whole vehicle thermal management system based on the gravity heat pipe and the multiple heat exchange coupling as claimed in claim 1, is characterized in that:
when the whole vehicle is in an ON gear power supply or a power battery is charged, a VCU of the whole vehicle wakes up a TMS controller, after the TMS controller completes power-ON self-detection, if the TMS controller receives a starting signal of a refrigeration request, whether the whole vehicle is precharged is judged to be completed, if the VTMS control module receives a signal of completing precharging, the whole vehicle is precharged to be completed, and the whole vehicle works according to a set heat management mode; the set thermal management modes include:
1) Passenger compartment refrigeration mode:
when the TMS controller receives a refrigeration request, the TMS controller firstly opens an air conditioner electromagnetic valve A and a condensing fan, then checks whether an air return sensor and a pressure switch of a passenger area work normally or not, and under the condition that the air return sensor and the pressure switch work normally, the TMS controller judges whether the pre-charging of the whole vehicle is finished or not again and judges a starting state message of the compressor, the compressor is started according to the state message of the compressor, and meanwhile, the current state of the compressor is fed back to a CAN bus network through the message; the TMS controller presets a passenger area temperature value, and determines the running rotating speed of the compressor according to a passenger area return air sensor;
2) Plate exchange refrigeration and gravity assisted heat pipe heat exchange modes:
the plate heat exchange refrigeration and gravity heat pipe heat exchange mode is a mode for cooling the power battery, the motor and the motor controller, the BMS determines the cooling modes of the power battery, the motor and the motor controller according to the highest monomer temperature value of the power battery and sends a message instruction to the VTMS heat management module, the VTMS heat management module operates according to different working modes and feeds back working states, faults and water temperature states in a heat management system for controlling the power battery, the motor and the motor controller to the CAN bus network;
when the highest temperature TBmax of a battery module of the power battery is higher than 35 ℃, the VCU preferentially starts an unpowered heat exchange mode of gravity heat pipe heat exchange according to a set program and sends a heat exchange request signal of the VTMS controller, the thermostatic expansion valve B is closed, the electromagnetic valve D is closed, the electromagnetic valve C is opened, the electronic water pump is opened, and the heat pipe heat exchanger operates;
when the heat pipe exchanger runs and the highest temperature of a battery module of a power battery fails to reach a set value, a VCU simultaneously sends a plate exchange refrigeration mode request signal containing charging refrigeration and discharging refrigeration to a TMS controller, the TMS controller performs self-checking and simultaneously judges whether the pre-charging of the whole vehicle is completed, and when a VTMS heat management module receives a pre-charging completion instruction sent by the VCU, the VTMS heat management module judges the charging refrigeration and the discharging refrigeration of the whole vehicle and works according to logic set in the TMS controller;
when the plate changes the refrigeration mode, the thermal expansion valve B is opened, the electromagnetic valve D is opened, the electromagnetic valve C is opened, the VTMS thermal management module starts the electronic water pump to operate 10S, and the TMS controller determines the operation state of the compressor according to the liquid outlet temperature of the power battery, so that the mode of complementary operation of the plate change refrigeration mode and the gravity assisted heat pipe heat exchange mode is realized.
3. The management method of the entire vehicle thermal management system based on the gravity assisted heat pipe and the multiple heat exchange coupling as claimed in claim 2, characterized in that: in the passenger compartment refrigeration mode, when the TMS controller inputs a suspension or high level, the TMS controller executes refrigeration to close a refrigeration process, rapidly reduces the frequency to close the compressor, closes the condensing fan and the air conditioning electromagnetic valve A after 5s, and feeds back the actual working state of the current compressor through the message of the compressor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115764080A (en) * | 2022-12-15 | 2023-03-07 | 广州星翼智慧能源技术有限公司 | Battery thermal runaway intelligent control method and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764080A (en) * | 2022-12-15 | 2023-03-07 | 广州星翼智慧能源技术有限公司 | Battery thermal runaway intelligent control method and system |
| CN115764080B (en) * | 2022-12-15 | 2023-11-14 | 广州星翼智慧能源技术有限公司 | Intelligent control method and system for thermal runaway of battery |
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