CN117301961A - Hybrid power thermal management system, control method thereof and electronic equipment - Google Patents
Hybrid power thermal management system, control method thereof and electronic equipment Download PDFInfo
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- CN117301961A CN117301961A CN202311288162.5A CN202311288162A CN117301961A CN 117301961 A CN117301961 A CN 117301961A CN 202311288162 A CN202311288162 A CN 202311288162A CN 117301961 A CN117301961 A CN 117301961A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000000110 cooling liquid Substances 0.000 claims abstract description 76
- 238000004590 computer program Methods 0.000 claims description 17
- 239000002826 coolant Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 description 17
- 238000004891 communication Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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- 230000003287 optical effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The embodiment of the invention discloses a hybrid power thermal management system, a control method thereof and electronic equipment. The hybrid power thermal management system comprises an engine, an EGR heat exchanger, an EGR water outlet pipe, a first electromagnetic valve, a cooling liquid pipeline, a PTC heater, a temperature sensor, a power battery, a water return pipe, a second electromagnetic valve, a third electromagnetic valve, an engine electric water pump and an engine water inlet pipe; the engine is connected with the EGR heat exchanger, the first electromagnetic valve, the PTC heater and the power battery in sequence, the power battery is connected with the temperature sensor, the EGR water outlet pipe is connected between the EGR heat exchanger and the first electromagnetic valve, the cooling liquid pipeline is connected with the PTC heater and the temperature sensor, and the EGR heat exchanger is connected with the second electromagnetic valve, the third electromagnetic valve and the engine electric water pump in sequence. The invention can realize the effective utilization of the electric water pump and the EGR heat exchanger of the engine, reduce the complexity of a thermal management system and reduce the energy consumption and the whole vehicle cost.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile thermal management, in particular to a hybrid power thermal management system, a control method thereof and electronic equipment.
Background
Along with the rapid development of new energy automobiles in China, the hybrid electric vehicle is an important development direction in the current stage, the technology for further reducing the energy consumption is continuously innovated, the charge and discharge capability of a power battery in a low-temperature or high-temperature environment directly influences the whole vehicle endurance mileage, the hybrid electric vehicle has the problems of high energy consumption although an engine can participate in driving, the heating and heat preservation of the power battery at the low temperature and the cooling at the high temperature are important problems, and the aim is to solve the problems.
Disclosure of Invention
The invention provides a hybrid power thermal management system, a control method thereof and electronic equipment, so as to realize effective utilization of an electric water pump and an EGR heat exchanger of an engine, reduce complexity of the thermal management system and reduce energy consumption and vehicle cost.
According to an aspect of the present invention, there is provided a hybrid thermal management system including: the system comprises an engine, an EGR heat exchanger, an EGR water outlet pipe, a first electromagnetic valve, a cooling liquid pipeline, a PTC heater, a temperature sensor, a power battery, a water return pipe, a second electromagnetic valve, a third electromagnetic valve, an engine electric water pump and an engine water inlet pipe;
the engine with the EGR heat exchanger the first solenoid valve the PTC heater and power battery connects gradually, power battery with temperature sensor connects, the EGR outlet pipe is connected the EGR heat exchanger with between the first solenoid valve, the coolant pipeline with the PTC heater with temperature sensor connects, the EGR heat exchanger with the second solenoid valve third solenoid valve and engine electric water pump connect gradually, engine electric water pump with the engine is connected, the second solenoid valve with the engine is connected, power battery with the third solenoid valve is connected.
Optionally, the hybrid thermal management system further comprises an exhaust pipe connected with the engine and an EGR gas extraction pipe connected between the exhaust pipe and the EGR heat exchanger.
Optionally, the hybrid thermal management system further comprises an EGR inlet pipe connected between the EGR heat exchanger and the intake manifold, and an intake manifold connected with the engine.
Optionally, the hybrid thermal management system further comprises an engine outlet pipe connected between the second solenoid valve and the engine.
Optionally, the hybrid thermal management system further comprises a water inlet line connected between the third solenoid valve and the engine electric water pump.
According to another aspect of the present invention, there is provided a control method of a hybrid thermal management system, the control method of the hybrid thermal management system including: the hybrid power thermal management system is in a charging working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the heated cooling liquid passes through the EGR water outlet pipe, the first electromagnetic valve is closed, and the heated cooling liquid passes through the cooling liquid pipe to heat the power battery;
the hybrid power heat management system is in a pure electric working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the first electromagnetic valve is opened, the cooling liquid enters the PTC heater, and the heated cooling liquid heats the power battery to a first preset temperature interval.
Optionally, the control method of the hybrid thermal management system further includes:
the hybrid power thermal management system is in a high-temperature working condition, when the engine is started or stopped, the electric water pump of the engine is started, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be opened, and the cooling liquid cools the power battery to a second preset temperature interval after entering the water return pipe.
Optionally, when the engine is started, the working temperature of the power battery is in a third preset temperature interval, and the inlet water of the engine directly enters the EGR heat exchanger after passing through the electric water pump, and the inlet water temperature of the engine is lower than the outlet water temperature of the engine.
According to another aspect of the present invention, there is also provided an electronic apparatus including:
one or more processors;
a memory for storing one or more programs;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a method of controlling a hybrid thermal management system according to an embodiment of the present invention.
According to another aspect of the present invention, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a control method of a hybrid thermal management system according to an embodiment of the present invention.
According to the technical scheme provided by the embodiment of the invention, the battery is cooled and heated by entering different cooling cycles according to the temperature of the power battery and utilizing the heat dissipation of the engine and the heat exchange of the EGR system, so that the system cost is greatly reduced, and the comprehensive efficiency of the system is improved; an electromagnetic valve is arranged between the EGR heat exchanger and the PTC heater to control a cooling pipeline passage, and water taking of the EGR heat exchanger is controlled by the electromagnetic valve to refrigerate hot water, so that the EGR rate is improved, and the engine efficiency is improved; as an important part of the system, the engine electric water pump always participates in cooling and heating of the engine and the power battery, so that the extra water circulating water pump is reduced, the heat management complexity is reduced, the effective utilization of the engine electric water pump and the EGR heat exchanger is realized, the complexity of the heat management system is reduced, and the energy consumption and the whole vehicle cost are reduced. In summary, the invention solves the problems of the prior art that the system structure complexity and the control complexity are increased and the whole vehicle cost is high by utilizing the heat recovery of the tail gas of the engine to heat the battery or utilizing the heat storage device to heat the battery at the unsuitable temperature of the battery.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a hybrid thermal management system according to an embodiment of the present invention;
FIG. 2 is a flow chart of a control method of a hybrid thermal management system according to an embodiment of the present invention;
FIG. 3 is a flow chart of a control method of yet another hybrid thermal management system provided in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of a hybrid thermal management system according to an embodiment of the present invention, and referring to fig. 1, an embodiment of the present invention provides a hybrid thermal management system, including: the engine 1, the EGR heat exchanger 4, the EGR water outlet pipe 5, the first electromagnetic valve 6, the cooling liquid pipeline 7, the PTC heater 8, the temperature sensor 9, the power battery 10, the water return pipe 11, the second electromagnetic valve 13, the third electromagnetic valve 15, the engine electric water pump 18 and the engine water inlet pipe 19; the engine 1 is connected with the EGR heat exchanger 4, the first electromagnetic valve 6, the PTC heater 8 and the power battery 10 in sequence, the power battery 10 is connected with the temperature sensor 9, the EGR water outlet pipe 5 is connected between the EGR heat exchanger 4 and the first electromagnetic valve 6, the coolant pipeline 7 is connected with the PTC heater 8 and the temperature sensor 9, the EGR heat exchanger 4 is connected with the second electromagnetic valve 13, the third electromagnetic valve 15 and the engine electric water pump 18 in sequence, the engine electric water pump 18 is connected with the engine 1, the second electromagnetic valve 13 is connected with the engine 1, and the power battery 10 is connected with the third electromagnetic valve 15.
Specifically, the hybrid thermal management system is mainly a control system that cools or heats the power battery 10 by using the engine 1 cooling and EGR heat exchanger 4. The engine 1 in the hybrid power thermal management system can be a special hybrid engine, and is provided with an exhaust gas recirculation (Exhaust Gas Recirculation, EGR) system and an electric water pump, so that the heating and cooling of the power battery 10 in the hybrid power system can be realized under different working conditions of the whole vehicle. The control logic of the hybrid thermal management system determines the different cooling cycles and the opening and closing of the cooling control solenoid valves for the engine management system (Engine Management System, EMS) based on the temperature information of the power cell 10 read by the temperature sensor 9.
The hybrid power thermal management system is in a low-temperature charging working condition, a temperature signal of the power battery 10 is input into an EMS (energy management system) through a temperature sensor 9, the EMS controls a third electromagnetic valve 15 to be closed, cooling liquid enters the engine 1 through an engine water inlet pipe 19, after passing through the engine 1, a second electromagnetic valve 13 is controlled to be opened, the cooling liquid enters an EGR heat exchanger 4, the cooling liquid flows through an EGR water outlet pipe 5 after being heated, at the moment, the EMS controls a first electromagnetic valve 6 to be closed, and the cooling liquid heats the power battery 10 after passing through a cooling liquid pipeline 7.
The hybrid power heat management system is in a low-temperature pure electric working condition, a temperature signal of the power battery 10 is input into an EMS (energy management system) through a temperature sensor 9, the EMS controls a third electromagnetic valve 15 to be closed, cooling liquid enters the engine 1 through an engine water inlet pipe 19, after the cooling liquid passes through the engine 1, the EMS controls a second electromagnetic valve 13 to be opened, the cooling liquid enters an EGR heat exchanger 4, the EMS controls a first electromagnetic valve 6 to be opened, the cooling liquid enters a PTC heater 8, and the heated cooling liquid heats the power battery 10 until the temperature of the power battery 10 enters a reasonable range.
The hybrid power thermal management system is in a high temperature working condition, no matter whether the engine 1 works or not, the engine electric water pump 18 is started, at the moment, the EMS controls the third electromagnetic valve 15 to be opened, and the cooling liquid enters the water return pipe 11, so that the power battery 10 is cooled until the temperature of the power battery 10 enters a reasonable range.
When the engine 1 in the hybrid power thermal management system works, the working temperature of the power battery 10 is in a reasonable range, at the moment, the inlet water of the EGR system of the engine 1 directly enters the EGR heat exchanger 4 through the engine electric water pump 18, at the moment, the inlet water temperature is lower than the outlet water temperature of the engine 1, so that the EGR rate can be improved, and the engine oil consumption can be reduced.
When the hybrid power thermal management system enters a battery charging working condition at low temperature, a temperature sensor 9 of a power battery 10 transmits a battery temperature signal to an EMS, the EMS controls a cooling liquid loop, a heating path of the power battery 10 is that water fed into a special hybrid engine enters the engine 1 after passing through an engine electric water pump 18, the engine 1 is cooled and enters an EGR heat exchanger 4, due to the operation of the EGR system, a part of high-temperature exhaust gas of the engine 1 enters the EGR heat exchanger 4 to be cooled and then enters a combustion chamber of the engine 1 to participate in combustion, and the temperature of cooling liquid flowing through the EGR heat exchanger 4 is increased after heat exchange, so that the power battery 10 is heated through a cooling liquid pipeline 7 and a control valve.
When the hybrid power thermal management system enters a pure electric working condition at a low temperature, the temperature sensor 9 of the power battery 10 transmits a battery temperature signal to the EMS, the EMS controls the cooling liquid loop, and the heating path of the power battery 10 is as follows: the inlet water of the special mixed engine enters the engine 1 after passing through the engine electric water pump 18, enters the EGR heat exchanger 4 after cooling the engine 1, enters the PTC heater 8, and cools and heats the power battery 10 after heating.
When the hybrid power thermal management system is at high temperature, the temperature sensor 9 of the power battery 10 transmits a battery temperature signal to the EMS, and the EMS controls the cooling liquid loop, and the cooling path of the power battery 10 is as follows: the inlet water of the special mixed engine is controlled by a third control valve 15 to enter a cooling branch after passing through an engine electric water pump 18, and the power battery 10 is directly cooled.
The hybrid power thermal management system heats the cooling liquid by using the EGR heat exchanger 4 provided with the special hybrid engine, so that the power battery 10 is heated in the battery charging process under the low-temperature environment, the battery capacity is improved, the charging time is shortened, the energy consumption is reduced, and the comprehensive efficiency is improved.
Hybrid thermal management systems are in low temperature environments: 1) The engine is driven in parallel under the condition of low battery SOC and the battery is charged, at the moment, the temperature of the cooling liquid flowing through the EGR heat exchanger 4 after the high-temperature exhaust gas enters the EGR heat exchanger 4 is quickly increased, the power battery 10 is directly heated by the cooling liquid after the temperature is increased, the charging time is shortened, and the battery endurance mileage is improved; 2) Under the pure electric working condition, the engine 1 does not work, at the moment, the electric water pump 18 of the engine works, and cooling liquid enters the PTC heater 8 to heat the power battery 10 after passing through the engine 1 and the EGR heat exchanger 4, so that the battery endurance mileage is improved.
Under the high-temperature environment, the hybrid power thermal management system enters the charging working condition of the engine parallel driving battery under the low SOC of the battery, and the low-temperature cooling liquid of the water inlet cooling branch of the engine is utilized to directly cool the power battery 10, so that the charging time is shortened, and the endurance mileage of the power battery 10 is improved; under the pure electric working condition, the engine 1 does not work, and at the moment, the electric water pump 18 of the engine works, and the low-temperature cooling liquid of the water inlet cooling branch of the engine is also used for directly cooling the power battery 10, so that the charging time is shortened, and the battery endurance mileage is improved.
The first electromagnetic valve 6, the second electromagnetic valve 13 and the third electromagnetic valve 15 are the same in model number and are two-position three-way electromagnetic valves.
According to the technical scheme provided by the embodiment of the invention, the battery is cooled and heated by entering different cooling cycles according to the temperature of the power battery and utilizing the heat dissipation of the engine and the heat exchange of the EGR system, so that the system cost is greatly reduced, and the comprehensive efficiency of the system is improved; an electromagnetic valve is arranged between the EGR heat exchanger and the PTC heater to control a cooling pipeline passage, and water taking of the EGR heat exchanger is controlled by the electromagnetic valve to refrigerate hot water, so that the EGR rate is improved, and the engine efficiency is improved; as an important part of the system, the engine electric water pump always participates in cooling and heating of the engine and the power battery, so that the extra water circulating water pump is reduced, the heat management complexity is reduced, the effective utilization of the engine electric water pump and the EGR heat exchanger is realized, the complexity of the heat management system is reduced, and the energy consumption and the whole vehicle cost are reduced. In summary, the invention solves the problems of the prior art that the system structure complexity and the control complexity are increased and the whole vehicle cost is high by utilizing the heat recovery of the tail gas of the engine to heat the battery or utilizing the heat storage device to heat the battery at the unsuitable temperature of the battery.
With continued reference to fig. 1, the hybrid thermal management system optionally further includes an exhaust pipe 2 and an EGR gas take-off pipe 3, the exhaust pipe 2 being connected to the engine 1, the EGR gas take-off pipe 3 being connected between the exhaust pipe 2 and the EGR heat exchanger 4.
With continued reference to FIG. 1, the hybrid thermal management system optionally further includes an EGR inlet tube 12 and an intake manifold 16, the EGR inlet tube 12 being connected between the EGR heat exchanger 4 and the intake manifold 16, the intake manifold 16 being connected with the engine 1.
With continued reference to fig. 1, the hybrid thermal management system optionally further includes an engine outlet pipe 14, the engine outlet pipe 14 being connected between the second solenoid valve 13 and the engine 1.
With continued reference to FIG. 1, the hybrid thermal management system optionally further includes an inlet line 17, the inlet line 17 being connected between the third solenoid valve 15 and the engine electric water pump 18.
Fig. 2 is a flowchart of a control method of a hybrid thermal management system according to an embodiment of the present invention, and referring to fig. 2, an embodiment of the present invention provides a control method of a hybrid thermal management system, where the control method of the hybrid thermal management system includes the following steps:
s110, the hybrid power heat management system is in a charging working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the heated cooling liquid passes through the EGR water outlet pipe, the first electromagnetic valve is closed, and the heated cooling liquid passes through the cooling liquid pipe and then heats the power battery.
Specifically, referring to fig. 1, the hybrid power thermal management system is in a low-temperature charging condition, the temperature sensor 9 inputs a temperature signal of the power battery 10 into the EMS, the EMS controls the third electromagnetic valve 15 to be closed, the cooling liquid enters the engine 1 through the engine water inlet pipe 19, after passing through the engine 1, the second electromagnetic valve 13 is controlled to be opened, the cooling liquid enters the EGR heat exchanger 4, the cooling liquid after being heated flows through the EGR water outlet pipe 5, at the moment, the EMS controls the first electromagnetic valve 6 to be closed, and the cooling liquid heats the power battery 10 after passing through the cooling liquid pipe 7.
S120, the hybrid power heat management system is in a pure electric working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the first electromagnetic valve is opened, the cooling liquid enters the PTC heater, and the heated cooling liquid heats the power battery to a first preset temperature interval.
Specifically, referring to fig. 1, the hybrid power thermal management system is in a low-temperature pure electric working condition, the temperature sensor 9 inputs a temperature signal of the power battery 10 into the EMS, the EMS controls the third electromagnetic valve 15 to close, the cooling liquid enters the engine 1 from the engine water inlet pipe 19, after passing through the engine 1, the EMS controls the second electromagnetic valve 13 to open, the cooling liquid enters the EGR heat exchanger 4, the EMS controls the first electromagnetic valve 6 to open, the cooling liquid enters the PTC heater 8, and the heated cooling liquid heats the power battery 10 until the temperature of the power battery 10 is within a reasonable range.
Because the hybrid power thermal management system is used for executing the control method of the hybrid power thermal management system provided by any embodiment of the present invention, the control method of the hybrid power thermal management system has the same beneficial effects as the hybrid power thermal management system, and will not be described in detail herein.
Fig. 3 is a flowchart of a control method of a hybrid thermal management system according to still another embodiment of the present invention, and referring to fig. 3, optionally, the control method of the hybrid thermal management system includes the steps of:
s210, the hybrid power heat management system is in a charging working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the heated cooling liquid passes through the EGR water outlet pipe, the first electromagnetic valve is closed, and the heated cooling liquid passes through the cooling liquid pipe and then heats the power battery.
S220, the hybrid power heat management system is in a pure electric working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the first electromagnetic valve is opened, the cooling liquid enters the PTC heater, and the heated cooling liquid heats the power battery to a first preset temperature interval.
S230, when the hybrid power thermal management system is in a high-temperature working condition and the engine is started or stopped, the electric water pump of the engine is started, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be opened, and the cooling liquid cools the power battery to a second preset temperature interval after entering the water return pipe.
Specifically, with reference to fig. 1, the hybrid power thermal management system is in a high temperature condition, no matter whether the engine 1 works or not, the engine electric water pump 18 is started, at this time, the EMS controls the third electromagnetic valve 15 to open, and the cooling liquid enters the water return pipe 11, so as to cool the power battery 10 until the temperature of the power battery 10 is within a reasonable range.
Optionally, when the engine is started, the working temperature of the power battery is in a third preset temperature range, water fed into the engine directly enters the EGR heat exchanger after passing through the electric water pump, and the water feeding temperature of the engine is lower than the water discharging temperature of the engine.
Specifically, referring to fig. 1, when the engine 1 in the hybrid power thermal management system works, the working temperature of the power battery 10 is in a reasonable range, at this time, the inlet water of the EGR system of the engine 1 directly enters the EGR heat exchanger 4 through the engine electric water pump 18, at this time, the inlet water temperature is lower than the outlet water temperature of the engine 1, so that the EGR rate can be improved, and the engine oil consumption can be reduced.
Fig. 4 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 4, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, for example, the control method of the hybrid thermal management system.
In some embodiments, the control method of the hybrid thermal management system may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the control method of the hybrid thermal management system described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to execute the control method of the hybrid thermal management system in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. A hybrid thermal management system, comprising: the system comprises an engine, an EGR heat exchanger, an EGR water outlet pipe, a first electromagnetic valve, a cooling liquid pipeline, a PTC heater, a temperature sensor, a power battery, a water return pipe, a second electromagnetic valve, a third electromagnetic valve, an engine electric water pump and an engine water inlet pipe;
the engine with the EGR heat exchanger the first solenoid valve the PTC heater and power battery connects gradually, power battery with temperature sensor connects, the EGR outlet pipe is connected the EGR heat exchanger with between the first solenoid valve, the coolant pipeline with the PTC heater with temperature sensor connects, the EGR heat exchanger with the second solenoid valve third solenoid valve and engine electric water pump connect gradually, engine electric water pump with the engine is connected, the second solenoid valve with the engine is connected, power battery with the third solenoid valve is connected.
2. The system of claim 1, further comprising an exhaust pipe connected to the engine and an EGR gas take-off pipe connected between the exhaust pipe and the EGR heat exchanger.
3. The system of claim 1, further comprising an EGR inlet tube connected between the EGR heat exchanger and the intake manifold, and an intake manifold connected with the engine.
4. The system of claim 1, further comprising an engine outlet pipe connected between the second solenoid valve and the engine.
5. The system of claim 1, further comprising a water inlet line connected between the third solenoid valve and the engine electric water pump.
6. The control method of the hybrid power thermal management system is characterized in that the hybrid power thermal management system is in a charging working condition, a temperature sensor sends a temperature signal to an engine management system, the engine management system controls a third electromagnetic valve to be closed, cooling liquid enters an engine from an engine water inlet pipe, a second electromagnetic valve is opened, the cooling liquid enters an EGR heat exchanger to be heated, the heated cooling liquid passes through an EGR water outlet pipe, the first electromagnetic valve is closed, and the heated cooling liquid passes through a cooling liquid pipeline to heat a power battery;
the hybrid power heat management system is in a pure electric working condition, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be closed, cooling liquid enters the engine from the engine water inlet pipe, the second electromagnetic valve is opened, the cooling liquid enters the EGR heat exchanger to be heated, the first electromagnetic valve is opened, the cooling liquid enters the PTC heater, and the heated cooling liquid heats the power battery to a first preset temperature interval.
7. The method of claim 6, wherein the control method of the hybrid thermal management system further comprises:
the hybrid power thermal management system is in a high-temperature working condition, when the engine is started or stopped, the electric water pump of the engine is started, the temperature sensor sends a temperature signal to the engine management system, the engine management system controls the third electromagnetic valve to be opened, and the cooling liquid cools the power battery to a second preset temperature interval after entering the water return pipe.
8. The method of claim 7, wherein when the engine is started, the working temperature of the power battery is in a third preset temperature range, and inlet water of the engine directly enters the EGR heat exchanger after passing through the electric water pump, and the inlet water temperature of the engine is lower than the outlet water temperature of the engine.
9. An electronic device, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, causes the one or more processors to implement the method of controlling a hybrid thermal management system of any of claims 6-8.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements a method of controlling a hybrid thermal management system according to any one of claims 6-8.
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| CN202311288162.5A CN117301961A (en) | 2023-10-07 | 2023-10-07 | Hybrid power thermal management system, control method thereof and electronic equipment |
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| CN202311288162.5A CN117301961A (en) | 2023-10-07 | 2023-10-07 | Hybrid power thermal management system, control method thereof and electronic equipment |
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