CN111016581A - Vehicle thermal management control system and method and vehicle - Google Patents
Vehicle thermal management control system and method and vehicle Download PDFInfo
- Publication number
- CN111016581A CN111016581A CN201911333816.5A CN201911333816A CN111016581A CN 111016581 A CN111016581 A CN 111016581A CN 201911333816 A CN201911333816 A CN 201911333816A CN 111016581 A CN111016581 A CN 111016581A
- Authority
- CN
- China
- Prior art keywords
- cooling liquid
- temperature
- heat exchanger
- engine
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to the automobile thermal management technology, in particular to a vehicle thermal management control system, a method and a vehicle, wherein the system comprises: the system comprises a heat exchange device, an engine, a battery pack, a refrigerating device and a switching device; the heat exchange device comprises a first heat exchanger and a second heat exchanger, and the engine is connected with the first heat exchanger through the second heat exchanger to form a first cooling liquid loop; the battery pack is connected with the refrigerating device through a second heat exchanger to form a second cooling liquid loop liquid; the switch device comprises a first switch device and a second switch device, the first switch device is arranged between the engine and the first heat exchanger, the second switch device is arranged between the engine and the second heat exchanger, and the opening or closing of the switch device is controlled according to the temperature of the cooling liquid of the engine; the invention can improve the heating speed of the vehicle cabin and the battery pack, reduce the waste of energy, reduce the emission, ensure the heating performance of an air conditioning system and reduce the occupancy rate of the space in the vehicle.
Description
Technical Field
The invention relates to the technical field of automobile thermal management, in particular to a vehicle thermal management control system and method and a vehicle.
Background
With the development of economy, the automobile industry also develops, more and more people select an automobile as a travel tool, and when the automobile is selected as the travel tool, the energy consumption of the automobile is generally considered, and the automobile with higher selective price ratio is selected.
At present, more and more hybrid vehicles are available in the market, the hybrid vehicles can meet higher emission indexes and better energy consumption, and because the hybrid vehicles are purely on batteries, the research and development directions of many hybrid vehicles are all focused on the aspect of batteries, and particularly, the research and development directions of battery heating are the research directions of research and development personnel.
At present, under low temperature environment, engine thermal cycle system and battery thermal cycle system are relatively independent among the hybrid vehicle, engine produces many heats among the engine thermal cycle system, this part heat can't be utilized, and when the battery needs to heat, can only heat through heating device, excessive cost has been increased, engine thermal cycle system and battery thermal cycle system occupy the inside most space of vehicle simultaneously, the rate of utilization in vehicle space has been reduced, the cost of maintenance of vehicle has been improved, use many energy of system's cooling and heating in the vehicle with more energy, cause the waste.
Therefore, the above problems need to be solved by those skilled in the art.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a vehicle thermal management control system, method and vehicle, which can increase the heating rate of a vehicle cabin and a battery pack, reduce energy waste, reduce emission, ensure heating performance of an air conditioning system, and reduce the occupancy rate of a vehicle interior space.
In order to solve the above problem, the present invention provides a vehicle thermal management control system including: the system comprises an engine, a heat exchange device, a switching device, a battery pack and a refrigerating device;
the heat exchange device comprises a first heat exchanger and a second heat exchanger, the switch device comprises a first switch device and a second switch device, the liquid outlet end of the engine is connected with the liquid inlet end of the first heat exchanger through the first switch device, the liquid outlet end of the first heat exchanger is connected with the liquid inlet end of the engine through the second switch device to form a first cooling liquid loop, and the first cooling liquid loop is used for circulating cooling liquid of the engine;
the liquid inlet end of the second heat exchanger is connected with the first switch device, the liquid outlet end of the second heat exchanger is connected with the second switch device to form a second cooling liquid loop, and the second cooling liquid loop is used for heating the second heat exchanger.
The second heat exchanger, the battery pack and the refrigerating device are sequentially connected to form a third cooling liquid loop, and the third cooling liquid loop is used for circulating cooling liquid of the battery;
the opening or closing of the switching device is controlled according to the coolant temperature of the engine.
Further, the system further comprises a driving device, wherein the driving device comprises a first driving device and a second driving device;
the first driving device is arranged between the engine and the first switching device, and the first driving device is used for driving the circulation of the cooling liquid in the first cooling liquid loop and the second cooling liquid loop;
the second driving device is arranged between the battery pack and the refrigerating device, and the second driving device is used for driving circulation of cooling liquid in the third cooling liquid loop.
Further, the driving device is a liquid pump or a motor.
Further, the second switch device is also connected with the first driving device to form a closed cooling liquid loop for reducing the cooling rate of the cooling liquid.
Further, the switching device is an electronic valve.
Further, the system further comprises a heating device arranged on one side of the first heat exchanger, wherein the heating device is used for heating the air flowing through the first heat exchanger.
Further, the heating device is a thermal resistor.
Further, the system also includes a temperature sensor and a controller;
the temperature sensor is used for monitoring the temperature of cooling liquid in the engine;
the temperature sensor, the switch device and the refrigerating device are electrically connected with the controller.
The invention also provides a vehicle thermal management control method, which comprises the following steps:
when the environmental temperature is lower than the preset environmental temperature, acquiring the temperature of a cooling liquid of the engine, the temperature of a battery core of the battery pack and the inlet temperature of the battery pack;
judging according to the temperature of the cooling liquid, the temperature of the battery cell and the temperature of the inlet;
controlling the switching device, the refrigerating device and the heating device to be switched on or off according to the judgment result;
and determining to execute the thermal circulation of the cooling liquid in the first cooling liquid loop, the second cooling liquid loop or the third cooling liquid loop according to the opening or closing of the switch device, the refrigerating device and the heating device.
The invention also protects a vehicle which comprises any one vehicle thermal management control system.
Due to the technical scheme, the invention has the following beneficial effects:
1) according to the vehicle thermal management control system, the vehicle thermal management control method and the vehicle, the switch device is additionally arranged on the engine cooling liquid loop, the switch device is controlled according to the temperature of the engine cooling liquid, the heat of the engine is reasonably utilized, the temperature is used for an air conditioning system, the heating speed of the vehicle cabin is increased, the heat using efficiency of the engine is improved, the energy waste is reduced, and the emission is reduced;
2) according to the vehicle thermal management control system, the vehicle thermal management control method and the vehicle, the switch device is additionally arranged on the battery cooling liquid loop, and the switch device is controlled according to the temperature of the engine cooling liquid, so that the problem that the battery is subjected to thermal shock due to overhigh temperature and the service life of the battery is shortened is avoided;
3) according to the vehicle thermal management control system, the vehicle thermal management control method and the vehicle, the heat exchange device is additionally arranged between the engine cooling liquid and the battery cooling liquid, the battery pack is heated by using the heat of the engine, the temperature of the battery pack is rapidly increased, the heat using efficiency of the engine is improved, the energy waste is reduced, the emission is reduced, and the occupancy rate of the space in the vehicle is reduced;
4) according to the vehicle thermal management control system, the vehicle thermal management control method and the vehicle, the heating device is added, so that the heating of the air conditioning system can be met when the temperature of the cooling liquid of the engine is too low, and the heating performance of the air conditioning system is ensured.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a vehicle thermal management control system provided in embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a vehicle thermal management control system provided in embodiment 2 of the invention;
fig. 3 is a flowchart of a vehicle thermal management control method according to an embodiment of the present invention.
In the figure, 1-motor, 2-heat exchange device, 3-switching device, 4-battery pack, 5-refrigeration device, 6-driving device, 7-heating device, 21-first heat exchanger, 22-second heat exchanger, 31-first switching device, 32-second switching device, 61-first driving device, 62-second driving device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
The embodiment provides a vehicle thermal management control system, a vehicle thermal management control method and a vehicle, and as shown in fig. 1, the system comprises: the system comprises an engine 1, a heat exchange device 2, a switching device 3, a battery pack 4 and a refrigerating device 5;
the heat exchange device 2 comprises a first heat exchanger 21 and a second heat exchanger 22, the switch device 3 comprises a first switch device 31 and a second switch device 32, the liquid outlet end of the engine 1 is connected with the liquid inlet end of the first heat exchanger 21 through the first switch device 31, the liquid outlet end of the first heat exchanger 21 is connected with the liquid inlet end of the engine 1 through the second switch device 32 to form a first cooling liquid loop, and the first cooling liquid loop is used for circulating cooling liquid of the engine;
the liquid inlet end of the second heat exchanger 22 is connected with the first switch device 31, the liquid outlet end of the second heat exchanger 22 is connected with the second switch device 32 to form a second cooling liquid loop, and the second cooling liquid loop is used for heating the second heat exchanger 22
The second heat exchanger 22, the battery pack 4 and the refrigerating device 5 are sequentially connected to form a third cooling liquid loop, and the third cooling liquid loop is used for circulating cooling liquid of the battery;
the opening or closing of the switching device 3 is controlled in accordance with the coolant temperature of the engine 1.
Specifically, the cooling liquid is water.
In particular, the switching device 5 is an electronic valve.
Preferably, the switching device 5 is a solenoid valve.
In particular, the system further comprises a driving device 6, said driving device 6 comprising a first driving device 61 and a second driving device 62;
the driving device 6 comprises a first driving device 61 and a second driving device 62;
the first driving device 61 is provided between the engine 1 and the first switching device 31, the first driving device 61 being configured to drive circulation of the coolant in the first coolant circuit and the second coolant circuit;
the second driving device 62 is disposed between the battery pack 4 and the cooling device 5, and the second driving device 62 is configured to drive circulation of the cooling fluid in the third cooling fluid circuit.
Further, the first driving device 61 can drive the cooling liquid in the second cooling liquid circulation loop to circulate when the second cooling liquid circulation loop is opened;
further, the driving device 6 is a liquid pump or a motor.
Preferably, the drive means 6 is a liquid pump.
Specifically, the system further comprises a heating device 7, the heating device 7 is arranged on one side of the first heat exchanger 21, and the heating device 7 is used for heating the air flowing through the first heat exchanger 21, so that the air heating rate can be improved.
Preferably, said heating means 7 is a thermal resistor.
Further, the system also includes a temperature sensor and a controller;
the temperature sensor is used for monitoring the temperature of cooling liquid in the engine;
the temperature sensor, the switch device 3, the refrigerating device 4, the driving device 6 and the heating device 7 are all electrically connected with the controller.
Specifically, in a low-temperature environment, when the temperature of the coolant of the engine 1 is higher than a first preset temperature, the first switch device 31 and the second switch device 32 are turned on, the first driving device 61 is turned on to drive the coolant of the engine 1 to flow into the first heat exchanger 21, the heating device 7 is turned off, and the temperature of the coolant of the engine 1 in the first cold area fluid loop is utilized to ensure the heating of the air conditioning system, so that the temperature of the coolant of the engine in the cold area can meet the heating requirement of the air conditioning system, thereby reducing the energy consumption and ensuring the heating performance of the air conditioning system.
Specifically, when the temperature of the coolant in the engine 1 is higher than a first preset temperature and the temperature of the battery core of the battery pack 4 is lower than a second preset temperature, the first switch device 31 and the second switch device 32 are turned on to form a second coolant loop, the first driving device 61 is turned on to drive the coolant in the engine 1 to flow into the second heat exchanger 22, the coolant in the third coolant loop is subjected to heat exchange in the second heat exchanger 22 by using the temperature of the coolant in the second coolant loop to heat the battery pack 4, so as to meet the temperature rise requirement of the battery pack 4, on one hand, the temperature of the coolant in the engine can be used for controlling the switch device, thereby avoiding thermal shock of the battery due to overhigh temperature, and prolonging the service life of the battery, on the other hand, the first coolant loop is combined with the second coolant loop through the heat exchange device, the battery pack is heated by utilizing the heat of the engine, the temperature of the battery pack is rapidly increased, the heat using efficiency of the engine is improved, the energy waste is reduced, the emission is reduced, and the occupancy rate of the space in the vehicle is reduced.
Specifically, when the cell temperature of the battery pack 4 reaches a third preset temperature, the first switching device 31 is turned off, and the heating of the battery pack 4 is finished.
Specifically, when the temperature of the battery core of the battery pack 4 reaches a fourth preset temperature, the refrigerating device 5 is started, the battery pack 3 is cooled through the second driving device 62, when the battery pack 3 reaches a seventh preset temperature, the refrigerating device 5 is closed, and the cooling of the battery pack 4 is finished.
Specifically, the first preset temperature to the fourth preset temperature are set to different values according to actual requirements of different vehicles.
As shown in fig. 3, the method comprises the following steps:
s101, when the environment temperature is lower than a preset environment temperature, obtaining the temperature of a cooling liquid of an engine, the temperature of a battery core of a battery pack and the inlet temperature of the battery pack;
s102, judging according to the temperature of the cooling liquid, the temperature of the battery core and the inlet temperature;
s103, controlling the on/off of the switch device, the refrigeration device and the heating device according to the judgment result;
s104, determining to execute thermal circulation of cooling liquid in the first cooling liquid loop, the second cooling liquid loop or the third cooling liquid loop according to the opening or closing of the switch device, the refrigerating device and the heating device.
Specifically, the preset temperature range is 0 ℃ to 5 ℃.
Specifically, the vehicle comprises the vehicle thermal management control system.
The embodiment provides a vehicle thermal management control system, a vehicle thermal management control method and a vehicle, which can improve the heating speed of a vehicle cabin and a battery pack, reduce energy waste, reduce emission, ensure heating performance of an air conditioning system and reduce the occupancy rate of space in the vehicle.
Example two
The second embodiment provides a vehicle thermal management control system, a method and a vehicle, and as shown in fig. 2, the system includes: the system comprises an engine 1, a heat exchange device 2, a switching device 3, a battery pack 4 and a refrigerating device 5;
the heat exchange device 2 comprises a first heat exchanger 21 and a second heat exchanger 22, the switch device 3 comprises a first switch device 31 and a second switch device 32, the liquid outlet end of the engine 1 is connected with the liquid inlet end of the first heat exchanger 21 through the first switch device 31, the liquid outlet end of the first heat exchanger 21 is connected with the liquid inlet end of the engine 1 through the second switch device 32 to form a first cooling liquid loop, and the first cooling liquid loop is used for circulating cooling liquid of the engine;
the liquid inlet end of the second heat exchanger 22 is connected with the first switch device 31, the liquid outlet end of the second heat exchanger 22 is connected with the second switch device 32 to form a second cooling liquid loop, and the second cooling liquid loop is used for heating the second heat exchanger 22
The second heat exchanger 22, the battery pack 4 and the refrigerating device 5 are sequentially connected to form a third cooling liquid loop, and the third cooling liquid loop is used for circulating cooling liquid of the battery
The opening or closing of the switching device 3 is controlled in accordance with the coolant temperature of the engine 1.
In particular, the first switch device 31 is further connected with the first driving device 61 to form a closed cooling liquid loop for reducing the cooling rate of the cooling liquid,
specifically, the cooling liquid is water.
In particular, the switching device 5 is an electronic valve.
Preferably, the switching device 5 is a solenoid valve.
In particular, the system further comprises a driving device 6, said driving device 6 comprising a first driving device 61 and a second driving device 62;
the driving device 6 comprises a first driving device 61 and a second driving device 62;
the first driving device 61 is provided between the engine 1 and the first switching device 31, the first driving device 61 being configured to drive circulation of the coolant in the first coolant circuit and the second coolant circuit;
the second driving means 62 is arranged between the battery pack 4 and the cooling device 5, the second driving means 62 being adapted to drive the circulation of the cooling fluid in the third cooling fluid circuit
Further, the first driving device 61 can drive the cooling liquid in the second cooling liquid circulation loop to circulate when the second cooling liquid circulation loop is opened;
further, the driving device 6 is a liquid pump or a motor.
Preferably, the drive means 6 is a liquid pump.
Specifically, the system further comprises a heating device 7, the heating device 7 is arranged on one side of the first heat exchanger 21, and the heating device 7 is used for heating the air flowing through the first heat exchanger 21, so that the air heating rate can be improved.
Preferably, said heating means 7 is a thermal resistor.
In particular, the second switch device 32 is also connected to the first driving device 61, forming a closed cooling liquid loop for reducing the cooling rate of the cooling liquid,
further, the closed cooling liquid loop comprises a first closed cooling liquid loop and a second closed cooling liquid loop;
the first closed coolant circuit is formed by connecting the second switching device 32, the first driving device 61, the first switching device 31, and the first heat exchanger 21 in this order;
the second closed coolant circuit is formed by connecting the second switching device 32, the first driving device 61, the first switching device 31, the second heat exchanger 22, the battery pack 4, the cooling device 5, and the first driving device 62 in this order.
Further, the system also includes a temperature sensor and a controller;
the temperature sensor is used for monitoring the temperature of cooling liquid in the engine;
the temperature sensor, the switch device 3, the refrigerating device 4, the driving device 6 and the heating device 7 are all electrically connected with the controller.
Specifically, in a low-temperature environment, when the temperature of the coolant of the engine 1 is lower than a first preset temperature, the second switching device 32 is turned off, the coolant does not flow into the engine 1, the first switching device 31 is turned on, the first driving device 61 is turned on, the coolant of the engine 1 is driven to flow into the first heat exchanger 21, the heating device 7 is turned on to heat the cold air passing through the heat exchanger 21,
Specifically, in a low-temperature environment, when the temperature of the coolant of the engine 1 is higher than a first preset temperature, the first switch device 31 and the second switch device 32 are turned on, the first driving device 61 is turned on to drive the coolant of the engine 1 to flow into the first heat exchanger 21, the heating device 7 is turned off, and the temperature of the coolant of the engine 1 in the first cold area fluid loop is utilized to ensure the heating of the air conditioning system, so that the temperature of the coolant of the engine in the cold area can meet the heating requirement of the air conditioning system, thereby reducing the energy consumption and ensuring the heating performance of the air conditioning system.
Specifically, when the temperature of the coolant in the engine 1 is higher than a first preset temperature and the temperature of the battery core of the battery pack 4 is lower than a second preset temperature, the first switch device 31 and the second switch device 32 are turned on to form a second coolant loop, the first driving device 61 is turned on to drive the coolant in the engine 1 to flow into the second heat exchanger 22, the coolant in the third coolant loop is subjected to heat exchange in the second heat exchanger 22 by using the temperature of the coolant in the second coolant loop to heat the battery pack 4, so as to meet the temperature rise requirement of the battery pack 4, on one hand, the temperature of the coolant in the engine can be used for controlling the switch device, thereby avoiding thermal shock of the battery due to overhigh temperature, and prolonging the service life of the battery, on the other hand, the first coolant loop is combined with the second coolant loop through the heat exchange device, the battery pack is heated by utilizing the heat of the engine, the temperature of the battery pack is rapidly increased, the heat using efficiency of the engine is improved, the energy waste is reduced, the emission is reduced, and the occupancy rate of the space in the vehicle is reduced.
Specifically, when the cell temperature of the battery pack 4 reaches a third preset temperature, the first switching device 31 is turned off, and the heating of the battery pack 4 is finished.
Specifically, when the temperature of the battery core of the battery pack 4 reaches a fourth preset temperature, the refrigerating device 5 is started, the battery pack 3 is cooled through the second driving device 62, and when the battery pack 3 reaches a fifth preset temperature, the refrigerating device 5 is closed, and the cooling of the battery pack 4 is finished.
Further, when the inlet temperature of the battery pack 4 is higher than the sixth preset temperature, the second switching device 32 is closed to prevent the coolant from flowing into the engine 1, and the high-temperature coolant passing through the second closed coolant loop flows through the second heat exchanger 22 to exchange heat between the high-temperature coolant of the second closed coolant loop and the low-temperature coolant of the second coolant loop in the second heat exchanger 22, thereby ensuring uniform temperature of the battery pack 4.
Further, when the inlet temperature of the battery pack 4 reaches a seventh preset temperature, the second switch device 32 is turned on, and the high-temperature coolant in the first coolant loop and the low-temperature coolant in the second coolant loop exchange heat again in the second heat exchanger 22, which is repeated, so as to ensure the constant temperature of the battery pack 4.
Specifically, the first preset temperature to the seventh preset temperature are set to different values according to actual requirements of different vehicles.
As shown in fig. 3, the method comprises the following steps:
s101, when the environment temperature is lower than a preset environment temperature, obtaining the temperature of a cooling liquid of an engine, the temperature of a battery core of a battery pack and the inlet temperature of the battery pack;
s102, judging according to the temperature of the cooling liquid, the temperature of the battery core and the inlet temperature;
s103, controlling the on/off of the switch device, the refrigeration device and the heating device according to the judgment result;
s104, determining to execute thermal circulation of cooling liquid in the first cooling liquid loop, the second cooling liquid loop or the third cooling liquid loop according to the opening or closing of the switch device, the refrigerating device and the heating device.
Further, the method further comprises: and determining to execute the thermal cycle of the cooling liquid in the closed cold area liquid loop according to the opening or closing of the switching device, the refrigerating device and the heating device.
Specifically, the preset temperature range is 0 ℃ to 5 ℃.
Specifically, the vehicle comprises the vehicle thermal management control system.
The second embodiment is different from the first embodiment in that the second switch device is connected with the first driving device to form a closed coolant loop, so that the cooling rate of coolant can be reduced when the engine stops working, the heating of the air conditioning system and the heating of the battery pack are guaranteed, the same technical effect as that of the first embodiment can be achieved, the heating speed of the vehicle cabin and the battery pack can be increased, the waste of energy is reduced, the emission is reduced, the heating performance of the air conditioning system is guaranteed, and the occupancy rate of the space in the vehicle is reduced.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.
Claims (10)
1. A vehicle thermal management control system, comprising: the system comprises an engine (1), a heat exchange device (2), a switching device (3), a battery pack (4) and a refrigerating device (5);
the heat exchange device (2) comprises a first heat exchanger (21) and a second heat exchanger (22), the switch device (3) comprises a first switch device (31) and a second switch device (32), the liquid outlet end of the engine (1) is connected with the liquid inlet end of the first heat exchanger (21) through the first switch device (31), the liquid outlet end of the first heat exchanger (21) is connected with the liquid inlet end of the engine (1) through the second switch device (32) to form a first cooling liquid loop, and the first cooling liquid loop is used for circulating cooling liquid of the engine;
the liquid inlet end of the second heat exchanger (22) is connected with the first switch device (31), the liquid outlet end of the second heat exchanger (22) is connected with the second switch device (32) to form a second cooling liquid loop, and the second cooling liquid loop is used for heating the second heat exchanger;
the second heat exchanger (22), the battery pack (4) and the refrigerating device (5) are sequentially connected to form a third cooling liquid loop, and the third cooling liquid loop is used for circulating cooling liquid of the battery;
the opening or closing of the switch device (3) is controlled in accordance with the temperature of the coolant of the engine (1).
2. A vehicle thermal management control system according to claim 1, characterized in that the system further comprises a drive device (6), the drive device (6) comprising a first drive device (61) and a second drive device (62);
-said first driving means (61) being arranged between said engine (1) and said first switching means (31), said first driving means (61) being intended to drive the circulation of the cooling fluid in said first and second cooling fluid circuits;
the second drive means (62) are arranged between the battery pack (4) and the cooling device (5), the second drive means (62) being arranged to drive the circulation of the cooling liquid in the third cooling liquid circuit.
3. A vehicle thermal management control system according to claim 2, characterized in that the drive means (6) is a liquid pump or an electric motor.
4. A vehicle thermal management control system according to claim 2, characterized in that the second switching device (32) is further connected to the first drive device (61) to form a closed coolant circuit for reducing the rate of cooling of the coolant.
5. A vehicle thermal management control system according to claim 1, characterized in that the switching device (3) is an electronic valve.
6. A vehicle thermal management control system according to claim 1, characterized in that the system further comprises a heating device (7), the heating device (7) being arranged on the side of the first heat exchanger (21), the heating device (7) being adapted to heat air flowing through the first heat exchanger (21).
7. A vehicle thermal management control system according to claim 6, characterized in that the heating means (7) is a thermal resistor.
8. The vehicle thermal management control system of claim 1, further comprising a temperature sensor and a controller;
the temperature sensor is used for monitoring the temperature of cooling liquid in the engine (1);
the temperature sensor, the switch device (3) and the refrigerating device (5) are electrically connected with the controller.
9. A control method based on the vehicle thermal management control system according to any one of claims 1 to 8, characterized by comprising the steps of:
when the environmental temperature is lower than the preset environmental temperature, acquiring the temperature of a cooling liquid of the engine, the temperature of a battery core of the battery pack and the inlet temperature of the battery pack;
judging according to the temperature of the cooling liquid, the temperature of the battery cell and the temperature of the inlet;
controlling the switching device, the refrigerating device and the heating device to be switched on or off according to the judgment result;
and determining to execute the thermal circulation of the cooling liquid in the first cooling liquid loop, the second cooling liquid loop or the third cooling liquid loop according to the opening or closing of the switch device, the refrigerating device and the heating device.
10. A vehicle, characterized in that the vehicle comprises a vehicle thermal management control system according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333816.5A CN111016581A (en) | 2019-12-23 | 2019-12-23 | Vehicle thermal management control system and method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333816.5A CN111016581A (en) | 2019-12-23 | 2019-12-23 | Vehicle thermal management control system and method and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111016581A true CN111016581A (en) | 2020-04-17 |
Family
ID=70211453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911333816.5A Pending CN111016581A (en) | 2019-12-23 | 2019-12-23 | Vehicle thermal management control system and method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111016581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883874A (en) * | 2020-06-01 | 2020-11-03 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893429U (en) * | 2010-11-26 | 2011-07-06 | 上海汽车集团股份有限公司 | Battery thermal management system |
| CN201975487U (en) * | 2010-12-17 | 2011-09-14 | 上海汽车集团股份有限公司 | Automotive battery heat management system |
| CN102951012A (en) * | 2011-08-30 | 2013-03-06 | 上海汽车集团股份有限公司 | Heat management system for hybrid power vehicle and control method thereof |
| CN103825068A (en) * | 2014-03-07 | 2014-05-28 | 中通客车控股股份有限公司 | Power battery module temperature control system for new energy coach |
| FR2991924B1 (en) * | 2012-06-18 | 2015-11-06 | Peugeot Citroen Automobiles Sa | COOLING / HEATING SYSTEM FOR A HYBRID, MONO-CIRCUIT VEHICLE AND AEROTHERMAL A TWO DIRECTION OF FLUID CIRCULATION |
| CN108466532A (en) * | 2018-06-11 | 2018-08-31 | 东风小康汽车有限公司重庆分公司 | A kind of hybrid vehicle temperature control system |
| CN108749609A (en) * | 2018-05-30 | 2018-11-06 | 中通客车控股股份有限公司 | A kind of LNG power battery for hybrid electric vehicle heat management system and working method |
| CN208827529U (en) * | 2018-09-25 | 2019-05-07 | 广州汽车集团股份有限公司 | A kind of automotive thermal tube reason system and automobile |
-
2019
- 2019-12-23 CN CN201911333816.5A patent/CN111016581A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201893429U (en) * | 2010-11-26 | 2011-07-06 | 上海汽车集团股份有限公司 | Battery thermal management system |
| CN201975487U (en) * | 2010-12-17 | 2011-09-14 | 上海汽车集团股份有限公司 | Automotive battery heat management system |
| CN102951012A (en) * | 2011-08-30 | 2013-03-06 | 上海汽车集团股份有限公司 | Heat management system for hybrid power vehicle and control method thereof |
| FR2991924B1 (en) * | 2012-06-18 | 2015-11-06 | Peugeot Citroen Automobiles Sa | COOLING / HEATING SYSTEM FOR A HYBRID, MONO-CIRCUIT VEHICLE AND AEROTHERMAL A TWO DIRECTION OF FLUID CIRCULATION |
| CN103825068A (en) * | 2014-03-07 | 2014-05-28 | 中通客车控股股份有限公司 | Power battery module temperature control system for new energy coach |
| CN108749609A (en) * | 2018-05-30 | 2018-11-06 | 中通客车控股股份有限公司 | A kind of LNG power battery for hybrid electric vehicle heat management system and working method |
| CN108466532A (en) * | 2018-06-11 | 2018-08-31 | 东风小康汽车有限公司重庆分公司 | A kind of hybrid vehicle temperature control system |
| CN208827529U (en) * | 2018-09-25 | 2019-05-07 | 广州汽车集团股份有限公司 | A kind of automotive thermal tube reason system and automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883874A (en) * | 2020-06-01 | 2020-11-03 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
| CN111883874B (en) * | 2020-06-01 | 2021-09-07 | 浙江吉利汽车研究院有限公司 | Variable thermal resistance thermal management system of battery and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107097664B (en) | Intelligent multi-loop electric automobile thermal management system | |
| CN205130860U (en) | Electric automobile's thermal management system | |
| CN204361210U (en) | A kind of Thermal Management System for EV Battery Packs | |
| CN102941791B (en) | Integrated thermal cycling system of electric vehicle | |
| CN108461868B (en) | Automobile heat management system and automobile | |
| CN109466277B (en) | Whole car thermal management system of pure electric car | |
| CN105984304A (en) | Whole vehicle heat management system of pure electric vehicle | |
| CN108437737B (en) | Temperature control energy-saving system and control method for electric vehicle | |
| CN102529690B (en) | Temperature control system and method | |
| CN106585414A (en) | Intelligent multi-loop electric automobile cooling system | |
| CN103625242A (en) | Thermal management system of electric automobile | |
| CN113335021B (en) | Waste heat recovery type whole vehicle thermal management system of extended-range hybrid electric vehicle | |
| CN106457958B (en) | The temperature control system of electric vehicle | |
| CN208576388U (en) | The temperature controlled electrombile thermal management system of integrated battery | |
| CN208931069U (en) | Whole car thermal management system and car | |
| CN211765062U (en) | Battery thermal management system for extended range vehicle | |
| CN113246800A (en) | Thermal management system of fuel cell automobile | |
| CN113954601B (en) | Heat management system of new energy electric automobile | |
| EP4228058A1 (en) | Vehicle thermal management system for fuel cell vehicle | |
| CN203580560U (en) | Electric automobile thermal management system | |
| CN113581013A (en) | Thermal management control system and control method for battery pack of hybrid electric vehicle | |
| CN204243158U (en) | A kind of liquid cooling battery system of new-energy automobile | |
| CN108711658A (en) | The power battery heating means and device of electric vehicle | |
| CN108819656A (en) | A kind of electric car integrated thermal management System and method for | |
| CN111016581A (en) | Vehicle thermal management control system and method and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200417 |