CN110962691A - Power battery thermal management control system - Google Patents
Power battery thermal management control system Download PDFInfo
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- CN110962691A CN110962691A CN201911135168.2A CN201911135168A CN110962691A CN 110962691 A CN110962691 A CN 110962691A CN 201911135168 A CN201911135168 A CN 201911135168A CN 110962691 A CN110962691 A CN 110962691A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a power battery thermal management control system which comprises a battery management module, a vehicle remote communication module and a vehicle control module, wherein the battery management module is used for acquiring temperature information of a vehicle battery system and sending the temperature information to the vehicle remote communication module; receiving a refrigeration instruction sent by a vehicle remote communication module, and sending the refrigeration instruction to an air conditioner refrigeration control module; the road information acquisition module is used for acquiring the path planning information and the road condition information of the vehicle and sending the information to the vehicle remote communication module; the vehicle remote communication module receives the temperature information, the path planning information and the road condition information, sends the information to the processing module, receives the refrigeration instruction sent by the processing module and sends the refrigeration instruction to the battery management module; the processing module is used for receiving the information sent by the vehicle remote communication module, generating a refrigeration instruction based on the information and sending the refrigeration instruction to the vehicle remote communication module; and the air-conditioning refrigeration control module is used for controlling the vehicle air-conditioning system according to the refrigeration instruction.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a thermal management control system for a power battery.
Background
The power battery is used as a core component of a pure electric vehicle or a hybrid electric vehicle, is the only or main power source of the vehicle, and plays a decisive role in the working performance of the vehicle. When the vehicle is driven under different driving conditions of high speed, low speed, acceleration, deceleration and the like, which are alternately changed, the battery is discharged at different rates, heat is generated at different heat generation rates, and the temperature of the battery rises. Temperature rise within the battery severely affects the operation, cycle life and charge acceptability, battery power and energy, safety and reliability of the electrochemical system of the battery.
The power battery has an optimal operating environment temperature range, the optimal power output of the battery can be ensured in the temperature range, the service life of the battery can be prolonged, and a main purpose of a battery thermal management strategy is to ensure that the battery is in the operating environment temperature range as far as possible. In the practical application process, because future working condition information cannot be obtained, prediction information of the future temperature of the battery is difficult to provide, the current thermal management strategy generally starts thermal management when the current thermal management strategy exceeds the optimal operating environment temperature range or exceeds the optimal operating environment temperature range, so that the operation in the optimal environment temperature range is difficult to ensure, and energy waste is easily caused.
Therefore, a thermal management control system for a power battery is expected, which can optimize the thermal management strategy of the battery, so as to enable the battery to operate in an optimal temperature environment with less energy consumption, prolong the service life of the battery and exert the maximum performance of the battery.
Disclosure of Invention
The invention aims to provide a thermal management control system for a power battery, which can realize a thermal management strategy for optimizing the battery, so that the battery can operate in an optimal temperature environment with low energy consumption, the service life of the battery is prolonged, and the maximum performance of the battery is exerted.
In order to achieve the above object, the present invention provides a power battery thermal management control system, including: the battery management module is used for acquiring temperature information of a vehicle battery system and sending the temperature information to the vehicle remote communication module; receiving a refrigeration instruction sent by the vehicle remote communication module, and sending the refrigeration instruction to an air conditioner refrigeration control module;
the road information acquisition module is used for acquiring path planning information and road condition information of a vehicle and sending the path planning information and the road condition information to the vehicle remote communication module;
the vehicle remote communication module receives the temperature information, the path planning information and the road condition information, sends the temperature information, the path planning information and the road condition information to a processing module, receives the refrigeration instruction sent by the processing module and sends the refrigeration instruction to the battery management module;
the processing module is used for receiving the temperature information, the path planning information and the road condition information sent by the vehicle remote communication module, generating the refrigeration instruction based on the temperature information, the path planning information and the road condition information, and sending the refrigeration instruction to the vehicle remote communication module;
and the air-conditioning refrigeration control module controls a vehicle air-conditioning system according to the refrigeration instruction.
Alternatively, the temperature information of the battery system includes one of a battery temperature, an ambient temperature inside the battery box, and a battery coolant temperature.
As an alternative, the processing module is disposed in a cloud server.
As an alternative, the road information obtaining module includes a satellite positioning system and an electronic map module, and the electronic map module receives user input to generate the path planning information, and determines the road condition information based on the current position determined by the satellite positioning system and the path planning information.
As an alternative, the generating the cooling instruction based on the temperature information, the path planning information, and the road condition information includes:
determining the speed of the vehicle at each moment under the corresponding path according to the path planning information and the road condition information;
calculating the battery power at each moment based on the vehicle speed at each moment;
calculating a predicted temperature value of the battery at each moment according to the battery power at each moment and the temperature information of the battery system acquired in real time;
calculating, for each refrigeration mode, an energy consumption of the vehicle air conditioning system based on the predicted temperature value;
and determining a refrigeration mode corresponding to the lowest energy consumption of the vehicle air conditioning system as a specified refrigeration mode, and generating the refrigeration instruction, wherein the refrigeration instruction comprises the specified refrigeration mode.
Alternatively, the cooling modes include a first cooling mode, a second cooling mode, and a third cooling mode;
according to the first cooling mode, the vehicle air conditioning system is in an on state from time T1 to time T4;
according to the second cooling mode, the vehicle air conditioning system is in an on state from time T2 to time T4;
according to the third cooling mode, the vehicle air conditioning system is in an on state from time T1 to time T3;
wherein T1< T2< T3< T4.
As an alternative, the road condition information includes the smooth, slow-moving and congested conditions of the corresponding path, and determining the vehicle speed of the vehicle at each time under the corresponding path according to the path planning information and the road condition information includes:
extracting experience vehicle speed data corresponding to unobstructed, slow-going and jammed conditions;
and determining the speed of the vehicle at each moment under the corresponding path by combining the empirical speed data according to the path planning information and the road condition information.
Alternatively, a correlation between a vehicle speed and a battery power stored in advance is extracted, and the battery power at each time is calculated based on the vehicle speed at each time.
Alternatively, the predicted temperature value of the battery at each moment is calculated by a mechanism model method, a finite element analysis method, an equivalent circuit method or a neural network method according to the battery power at each moment and the temperature information of the battery system. ,
alternatively, the energy consumption of the vehicle air conditioning system is calculated for each cooling mode based on the predicted temperature value by a cooling model simulation system.
The invention has the beneficial effects that:
the method comprises the following steps of 1, according to the planning of a driving path by a driver, predicting the temperature rise trend of the battery temperature by combining road condition information, simulating the required energy consumption of different refrigeration schemes, obtaining an optimal heat management scheme, enabling the battery to operate in an optimal temperature range, prolonging the service life of the battery, simultaneously minimizing the consumed energy and obtaining the maximum driving range.
2, the vehicle-mounted embedded system has limited computing capability, cannot predict the temperature under the working condition of the battery and verify a plurality of heat management schemes, and the schemes are transplanted to a cloud server, so that the functions can be realized, and the load of the vehicle-mounted embedded system is reduced.
The system of the present invention has other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the invention.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts.
Fig. 1 shows a structural schematic diagram of a power battery thermal management control system according to an embodiment of the invention.
Fig. 2 shows battery output power at different times of a vehicle simulated on a planned path according to an embodiment of the invention.
Fig. 3 shows the variation trend of the battery temperature under the control of three cooling modes according to an embodiment of the present invention.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 shows a structural schematic diagram of a power battery thermal management control system according to an embodiment of the invention. Referring to fig. 1, the power battery thermal management control system includes:
the battery management module is used for acquiring temperature information of a vehicle battery system and sending the temperature information to the vehicle remote communication module; receiving a refrigeration instruction sent by a vehicle remote communication module, and sending the refrigeration instruction to an air conditioner refrigeration control module;
the road information acquisition module is used for acquiring the path planning information and the road condition information of the vehicle and sending the path planning information and the road condition information to the vehicle remote communication module;
the vehicle remote communication module receives the temperature information, the path planning information and the road condition information, sends the temperature information, the path planning information and the road condition information to the processing module, receives the refrigeration instruction sent by the processing module and sends the refrigeration instruction to the battery management module;
the processing module is used for receiving the temperature information, the path planning information and the road condition information sent by the vehicle remote communication module, generating a refrigeration instruction based on the temperature information, the path planning information and the road condition information, and sending the refrigeration instruction to the vehicle remote communication module;
and the air-conditioning refrigeration control module is used for controlling the vehicle air-conditioning system according to the refrigeration instruction.
Specifically, in the prior art, a manufacturer can prefabricate a refrigeration scheme of a battery in a battery thermal management system, the prefabricated refrigeration scheme is formed based on experience and has no pertinence to refrigeration of the battery every time, in addition, the refrigeration scheme is made according to the temperature of the battery at that time, and the temperature change condition behind the battery is difficult to predict because the later working condition cannot be predicted, so that the situation that the refrigeration scheme is not matched with the actual working condition is easily caused, energy waste is caused, or the temperature rise caused by insufficient refrigeration in the early stage is over the normal use temperature range of the battery too fast, and the service life of the battery is influenced. The thermal management control system for the power battery can predict the temperature rising trend of the battery by combining road condition information according to the planning of a driver on a driving path and simulating the energy consumption of different refrigeration schemes according to the change trend of the battery temperature through the steps of information acquisition, transmission, simulation and the like, so that the refrigeration scheme with the minimum energy consumption is obtained, and the refrigeration of the battery at each time has pertinence. The control module of the present invention is described in detail below:
and the battery management module has the functions of acquiring temperature information, sending and receiving information and controlling the air-conditioning refrigeration control module. The temperature information collected in this example includes the battery temperature, the ambient temperature inside the battery box, and the battery coolant temperature. The object for sending and receiving information is a vehicle remote communication module, the collected temperature information is sent to the vehicle remote communication module, a refrigeration instruction sent by the vehicle remote communication module is received, and the refrigeration instruction is sent to an air conditioner refrigeration control module.
The road information acquisition module is used for acquiring the path planning information and the road condition information of the vehicle and sending the path planning information and the road condition information to the vehicle remote communication module; the path planning information is a driving path from a starting place to a destination, the path planning information is generated through a satellite positioning system and an electronic map module, road condition information is determined based on the current position determined by the satellite positioning system and the path planning information, and the path planning information further comprises road conditions of the driving path, such as an expressway, a common road, a rural road, an ascending slope, a descending slope and the like in front. The road condition information includes: the front road is smooth, slowly runs, is jammed, has sudden accidents or construction and the like, and the road condition information can also be provided by the vehicle-mounted navigation system.
And the vehicle remote communication module is used for receiving and sending information. The method comprises the steps of receiving temperature information sent by a battery management module, receiving path planning information and road condition information when a driver makes the path planning information, sending the temperature information, the path planning information and the road condition information to a processing module, receiving a refrigeration instruction sent by the processing module, and sending the refrigeration instruction to the battery management module.
The processing module is a core module of the system, the processing module stores experience data and a simulation system which are needed for calculation, the simulation system comprises various heat flow models, battery models, cooling models and the like, the simulation software is used for modeling and then simulating, and different working conditions can be simulated. In one example, the processing module is disposed in a cloud server. The processing module receives temperature information sent by the vehicle remote communication module, such as: the battery temperature, the ambient temperature in the battery box, the battery cooling liquid temperature, the path planning information and the current road condition information are combined with the experience data of the processing module according to the received information, the experience data is experience vehicle speed data corresponding to smooth, slow running and congestion conditions, the vehicle speed corresponding to the vehicle in the corresponding path at different future times can be predicted, the battery power at each time is calculated based on the vehicle speed at each time, and the method for calculating the battery power at each time comprises the following steps: the correlation between the vehicle speed and the battery power stored in the processing module in advance is extracted, and the battery power at each time is calculated based on the vehicle speed at each time. And calculating the predicted temperature value of the battery at each moment according to the battery power at each moment and the temperature information of the battery system acquired in real time, wherein the method for predicting the temperature comprises a mechanism model method, a finite element analysis method, an equivalent circuit method or a neural network method provided in an AMESIM simulation system. In this example, the predicted temperature value may be obtained by simulating various battery models in the system AMESIM. Calculating the energy consumption of the vehicle air conditioning system through a cooling model in a simulation system AMESIM based on the predicted temperature value for each refrigeration mode; and determining a refrigeration mode corresponding to the lowest energy consumption of the vehicle air conditioning system as an appointed refrigeration mode, and generating a refrigeration instruction, wherein the refrigeration instruction comprises the appointed refrigeration mode.
Referring to fig. 2, the output power of the battery corresponding to different time instants simulated by the vehicle on the planned path in one embodiment is plotted on the ordinate, the output power of the power battery is represented in kW, a positive value represents the battery discharge output to the external load, and a negative value represents the battery charge external load feedback to the battery. The abscissa represents the travel time in seconds. Under the working condition, the processing module in the cloud server can obtain the temperature rise trend of the battery through calculation, and the refrigeration of the battery is subjected to analog simulation by adopting different refrigeration instructions to obtain the temperature change condition of the battery.
Referring to fig. 3, in one example, three refrigeration commands are preset in the processing module, wherein the ordinate is the temperature of the battery and the unit is the temperature, and the abscissa is the time and the unit is the second. Given that we define T1-15 deg.c and T2-25 deg.c, we aim to control the temperature of the cell between 15 deg.c and 25 deg.c. The current temperature of the battery obtained by the processing module is 10 ℃, and a curve 1 represents the temperature rise condition of the battery under the condition that no refrigeration measure is adopted; the curve 2 is the temperature control condition of the refrigeration instruction 1, the starting time period is t 1-t 4, and the energy consumption required by refrigeration is P1; the curve 3 is the temperature control condition of the refrigeration instruction 2, the starting time period is t 2-t 4, and the energy consumption required by refrigeration is P2; the curve 4 is the temperature control condition of the refrigeration instruction 3, the starting time period is t 1-t 3, and the energy consumption required by refrigeration is P3; as can be seen from the figure, the 3-refrigeration instruction can control the temperature of the battery between T1 and T2. At this time, the refrigeration mode corresponding to the minimum energy consumption P required for refrigeration (P1, P2, P3) is used as the specified refrigeration mode, and a corresponding refrigeration command is generated and sent to the battery management module.
Because the processing module can have certain errors in temperature prediction, a driver can also adjust the path planning, the processing module receives the temperature information sent by the thermal management module and the path planning information and road condition information sent by the road information acquisition module in real time, the processing module re-simulates the temperature rise trend according to the latest information, the processing module performs simulation on different refrigeration instructions again according to the new temperature rise trend, and sends the refrigeration instruction with the minimum energy consumption to the battery management module.
When the vehicle does not run according to the path planning information, the battery management module sends a refrigeration instruction to the air-conditioning refrigeration control module according to a refrigeration scheme of the battery management module, in one example, the refrigeration instruction is that when the temperature of the battery is higher than a cooling opening threshold value, the air-conditioning refrigeration control module controls the air-conditioning system of the vehicle to be started, and when the temperature of the battery is lower than a cooling closing threshold value, the air-conditioning refrigeration control module controls the air-conditioning system of the vehicle to be closed.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A power battery thermal management control system, characterized by comprising:
the battery management module is used for acquiring temperature information of a vehicle battery system and sending the temperature information to the vehicle remote communication module; receiving a refrigeration instruction sent by the vehicle remote communication module, and sending the refrigeration instruction to an air conditioner refrigeration control module;
the road information acquisition module is used for acquiring path planning information and road condition information of a vehicle and sending the path planning information and the road condition information to the vehicle remote communication module;
the vehicle remote communication module receives the temperature information, the path planning information and the road condition information, sends the temperature information, the path planning information and the road condition information to a processing module, receives the refrigeration instruction sent by the processing module and sends the refrigeration instruction to the battery management module;
the processing module is used for receiving the temperature information, the path planning information and the road condition information sent by the vehicle remote communication module, generating the refrigeration instruction based on the temperature information, the path planning information and the road condition information, and sending the refrigeration instruction to the vehicle remote communication module;
and the air-conditioning refrigeration control module controls a vehicle air-conditioning system according to the refrigeration instruction.
2. The thermal management control system for the power battery according to claim 1, wherein the temperature information of the battery system comprises one of battery temperature, ambient temperature in a battery box, and battery coolant temperature.
3. The power battery thermal management control system of claim 1, wherein the processing module is provided in a cloud server.
4. The power battery thermal management control system according to claim 1, wherein the road information acquisition module comprises a satellite positioning system and an electronic map module, the electronic map module receives user input to generate the path planning information, and determines the road condition information based on the current position determined by the satellite positioning system and the path planning information.
5. The power battery thermal management control system of claim 1, wherein the generating the cooling instruction based on the temperature information, the path planning information, and the road condition information comprises:
determining the speed of the vehicle at each moment under the corresponding path according to the path planning information and the road condition information;
calculating the battery power at each moment based on the vehicle speed at each moment;
calculating a predicted temperature value of the battery at each moment according to the battery power at each moment and the acquired temperature information of the battery system;
calculating, for each refrigeration mode, an energy consumption of the vehicle air conditioning system based on the predicted temperature value;
and determining a refrigeration mode corresponding to the lowest energy consumption of the vehicle air conditioning system as a specified refrigeration mode, and generating the refrigeration instruction, wherein the refrigeration instruction comprises the specified refrigeration mode.
6. The power battery thermal management control system of claim 5, wherein the cooling modes comprise a first cooling mode, a second cooling mode, and a third cooling mode;
according to the first cooling mode, the vehicle air conditioning system is in an on state from time T1 to time T4;
according to the second cooling mode, the vehicle air conditioning system is in an on state from time T2 to time T4;
according to the third cooling mode, the vehicle air conditioning system is in an on state from time T1 to time T3;
wherein T1< T2< T3< T4.
7. The power battery thermal management control system of claim 5, wherein the road condition information includes unobstructed, slow-going, and congested conditions of a corresponding path, and determining the speed of the vehicle at each time in the corresponding path according to the path planning information and the road condition information includes:
extracting experience vehicle speed data corresponding to unobstructed, slow-going and jammed conditions;
and determining the speed of the vehicle at each moment under the corresponding path by combining the empirical speed data according to the path planning information and the road condition information.
8. The thermal management control system for the power battery according to claim 7, wherein a correlation between a vehicle speed and a battery power stored in advance is extracted, and the battery power at each time is calculated based on the vehicle speed at each time.
9. The thermal management control system for the power battery according to claim 5, wherein the predicted temperature value of the battery at each moment is calculated by a mechanism model method, a finite element analysis method, an equivalent circuit method or a neural network method according to the battery power at each moment and the temperature information of the battery system.
10. The power battery thermal management control system of claim 5, wherein energy consumption of a vehicle air conditioning system is calculated for each cooling mode based on the predicted temperature value by a cooling model simulation system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911135168.2A CN110962691A (en) | 2019-11-19 | 2019-11-19 | Power battery thermal management control system |
| PCT/CN2019/130853 WO2021098026A1 (en) | 2019-11-19 | 2019-12-31 | Traction battery heat management control system |
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| CN201911135168.2A CN110962691A (en) | 2019-11-19 | 2019-11-19 | Power battery thermal management control system |
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| CN111923784A (en) * | 2020-08-11 | 2020-11-13 | 一汽解放青岛汽车有限公司 | Temperature control method, device and equipment for vehicle cooling system and storage medium |
| CN111923784B (en) * | 2020-08-11 | 2021-12-28 | 一汽解放青岛汽车有限公司 | Temperature control method, device and equipment for vehicle cooling system and storage medium |
| CN112161712A (en) * | 2020-09-29 | 2021-01-01 | 上海汽车工业(集团)总公司 | All-weather temperature monitoring system for electric automobile |
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| WO2021098026A1 (en) | 2021-05-27 |
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