CN109664723B - Vehicle integrated management method and medium - Google Patents

Vehicle integrated management method and medium Download PDF

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Publication number
CN109664723B
CN109664723B CN201811654802.9A CN201811654802A CN109664723B CN 109664723 B CN109664723 B CN 109664723B CN 201811654802 A CN201811654802 A CN 201811654802A CN 109664723 B CN109664723 B CN 109664723B
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China
Prior art keywords
battery
management system
water
air conditioning
thermal management
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CN201811654802.9A
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Chinese (zh)
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CN109664723A (en
Inventor
曹浩
黄冰
陈达聪
钟义军
陈国豪
胡鹏飞
向德虎
景阳阳
蒋金龙
李昱霖
伍启发
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SKYWORTH air conditioning technology (Anhui) Co., Ltd
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Shenzhen Skyworth Air Conditioning Technology Co Ltd
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Priority to CN201811654802.9A priority Critical patent/CN109664723B/en
Publication of CN109664723A publication Critical patent/CN109664723A/en
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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
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
    • 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

Abstract

The invention discloses a vehicle comprehensive management method, which is applied to a vehicle comprehensive management system and comprises the following steps: judging whether the water level in the water tank is in an over-low protection state or not according to parameters preset in a battery thermal management system; when the water level is judged to be in the no-too-low protection state, processing communication data from the battery management system; judging whether the water pump meets an opening state or not according to the received communication data of the battery management system; when the water pump is judged to meet the starting state, starting the water pump and judging whether the water flow sensor is in a protection state; and when the water flow sensor is judged to be in an unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system. The invention also provides a medium. The battery pack has the advantages that the problem of how to exert the optimal performance of the battery pack and prolong the service life of the battery pack is solved.

Description

Vehicle integrated management method and medium
Technical Field
The invention relates to the field of vehicles, in particular to a vehicle comprehensive management method and medium.
Background
Along with the continuous increase of automobile consumption, traditional car relies on fossil fuel such as burning petrol, diesel oil to provide power, has not only consumed a large amount of energy, and a large amount of automobile exhaust of simultaneously discharging causes environmental pollution more and more seriously, also becomes one of the leading reasons that the haze produced. Therefore, new energy vehicles with energy saving and environmental protection are increasingly popular with governments and society, and especially pure electric vehicles which are used in large quantities at present. The pure electric vehicle is powered by the battery pack, the battery pack is used for providing electric power for an air conditioning system, a control system and the like of the whole vehicle, the battery pack is used as an energy storage element and is a key part of the pure electric vehicle, and the performance of the battery pack directly influences the performance of the pure electric vehicle.
The performance of a high-power battery pack is sensitive to temperature change, the battery pack can generate a large amount of heat during discharging, if the heat cannot be dissipated in time, the internal temperature of the battery pack is overhigh or the temperature distribution is uneven, the charging and discharging cycle efficiency of the battery is finally reduced, the power and energy performance of the battery are influenced, and the battery is further overheated out of control in serious conditions, and the safety and reliability of the battery are influenced. When the battery pack is charged during parking, the battery pack can also generate heat due to charging, and the battery pack needs to be cooled at the moment, particularly in the fast charging technology which is increasingly mature and popular in the market, the battery pack generates a large amount of heat during fast charging, and the battery pack needs to be cooled; at low temperatures, the electrochemical reaction inside the cell cannot operate properly due to the temperature, and preheating of the stack is required.
Therefore, in order to enable the battery pack to have the best performance and the best service life, effective thermal management must be carried out on the battery pack, and the common practice of the pure electric passenger car at present is to control the temperature of the battery pack through an air conditioning system (cold air or hot air) in the car body, so that on one hand, the air conditioning system is not communicated with a battery management system of the whole car, the temperature control is not timely and inaccurate, and the situations of poor effect or energy waste exist; on the other hand, it is difficult to ensure effective temperature control of the battery pack in non-air-conditioning seasons and when the air conditioner is not turned on during charging while parking. And secondly, an independent air conditioning system is arranged for the battery pack, and the battery pack is cooled or preheated independently, so that two sets of independent air conditioning systems are arranged for one pure electric bus, on one hand, the cost is wasted, and on the other hand, the self weight of the bus body is increased, so that the power consumption is increased, and the endurance mileage of the whole bus is influenced.
How to save energy of the battery pack, exert the best performance of the battery pack and prolong the service life of the battery pack is an urgent problem to be solved.
Disclosure of Invention
The invention mainly aims to provide a vehicle comprehensive management method and medium, aiming at solving the problems of playing the best performance of a battery pack and prolonging the service life of the battery pack.
In order to achieve the above object, the present invention provides a vehicle integrated management method, which is applied to a vehicle integrated management system, and the vehicle integrated management system includes: the water-cooling system comprises a battery thermal management system, a battery management system, a water level sensor, a water tank, an air conditioning system, a water flow sensor and a water pump, wherein the battery management system comprises a battery pack and is respectively connected with the battery management system, the water level sensor, the water tank, the air conditioning system, the water flow sensor and the water pump; the battery management system is used for measuring the temperature of hot water/cold water produced by the air conditioning system; the air conditioning system is connected with the battery pack through a water pipe, the water level sensor is fixedly arranged in the water tank and used for detecting the water level in the water tank, the water flow sensor is fixedly arranged on the water pipe and used for detecting whether water flows in the water pipe or not, the water pump is connected with the water flow sensor through the water pipe, and the air conditioning system is used for preparing hot water/cold water and supplying the hot water/cold water to the battery pack through the water pipe to heat/cool the battery pack;
judging whether the water level in the water tank is in an over-low protection state or not according to data transmitted by the water level sensor;
when the water level is judged to be in the no-too-low protection state, processing communication data from the battery management system;
judging whether the water pump meets an opening state or not according to the received communication data of the battery management system;
when the water pump is judged to meet the starting state, starting the water pump and judging whether the water flow sensor is in a protection state;
and when the water flow sensor is judged to be in an unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system.
Preferably, when it is determined that the water flow sensor is in the unprotected state, the step of adjusting the temperature of the battery pack based on the communication data of the battery management system includes:
when the water flow sensor is judged to be in an unprotected state, judging the mode of the battery management system;
if the battery management system is in a charging mode, controlling the battery thermal management system to send a charging thermal management instruction to the air conditioning system;
if the battery management system is in a discharging mode, controlling the battery thermal management system to send a discharging thermal management instruction to the air conditioning system;
and if the battery management system is in a non-charging and discharging mode, controlling the battery thermal management system to send a parking low-frequency thermal management instruction to the air conditioning system.
Preferably, if the battery management system is in the charging mode, the step of controlling the battery thermal management system to send the charging thermal management demand instruction to the air conditioning system includes:
when the battery management system is in a charging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Y1 ℃, controlling the battery thermal management system to start, and sending a high-frequency thermal management demand instruction to the air conditioning system;
if the temperature of Y2 ℃ is less than or equal to the temperature of the air conditioning system and the temperature of the water required by the battery pack is less than Y1 ℃, controlling the battery thermal management system to start, and sending a charging low-frequency thermal management demand instruction to the air conditioning system;
and if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Y2 ℃, controlling the battery thermal management system to be in a standby state.
Preferably, if the battery management system is in the discharging mode, the step of controlling the battery management system to send a discharging thermal management demand instruction to the air conditioning system includes:
when the battery management system is in a discharging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Z1 ℃, starting the battery thermal management system and sending a discharge high-frequency thermal management instruction to the air conditioning system;
if the temperature of Z2 ℃ is less than or equal to the temperature of the air conditioning system and the water temperature required by the battery pack is less than Z1 ℃, controlling the battery thermal management system to start and sending a discharging low-frequency thermal management instruction to the air conditioning system;
and if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Z2 ℃, controlling the battery thermal management system not to be in standby.
Preferably, if the battery management system is in the non-charging and discharging mode, the step of controlling the battery management system to send the parking low-frequency thermal management demand instruction to the air conditioning system includes:
when the battery management system is in a non-charging and discharging mode: judging the difference value of the temperature of the battery pack minus the temperature of the air conditioning system;
when the temperature of the battery pack minus the water temperature of the air conditioning system is more than or equal to X ℃, controlling the battery thermal management system to start, and sending a parking low-frequency thermal management instruction to the air conditioning system;
and when the temperature of the battery pack minus the water temperature of the air conditioning system is less than X ℃, controlling the battery thermal management system to be in standby state.
Preferably, the step of judging whether the water level in the water tank is in the over-low protection state according to the data transmitted by the water level sensor comprises:
judging whether the water level is protected by too low water level according to the data transmitted by the water level sensor;
if yes, the battery thermal management system reports a fault that the water level is too low, and meanwhile the battery thermal management system is controlled not to be started in a standby mode;
if not, the water level is in a no-over-low protection state, and communication data from the battery management system are processed.
Preferably, the step of determining whether the water pump satisfies the starting state according to the received communication data of the battery management system includes:
judging whether the water pump needs to be started or not according to the communication data received by the battery management system;
if the battery management system is in a charging mode or a discharging mode or the temperature of the battery pack minus the temperature of the air conditioning system is more than or equal to X ℃, the water pump is started to meet the condition that the water pump is in a starting state;
if not, the water pump is not started.
Preferably, when it is determined that the water pump satisfies the start state, the step of starting the water pump and determining whether the water flow sensor is in the protection state includes:
when the water pump is judged to meet the starting state, judging whether a water flow sensor of the battery thermal management system reports water flow protection;
if yes, stopping the heat management system and not starting the heat management system, and simultaneously stopping the water pump and reporting the fault of the water pump by the heat management system;
if not, the water flow sensor is not protected.
The present invention also provides a computer-readable storage medium having stored thereon a vehicle integrated management method program that, when executed by a processor, implements the steps of the vehicle integrated management method as recited in any one of the above.
The invention has the following beneficial technical effects:
a vehicle integrated management method is applied to a vehicle integrated management system, and the vehicle integrated management system comprises the following steps: the water-cooling system comprises a battery thermal management system, a battery management system, a water level sensor, a water tank, an air conditioning system, a water flow sensor and a water pump, wherein the battery management system comprises a battery pack and is respectively connected with the battery management system, the water level sensor, the water tank, the air conditioning system, the water flow sensor and the water pump; the battery management system is used for measuring the temperature of hot water/cold water produced by the air conditioning system; the air conditioning system is connected with the battery pack through a water pipe, the water level sensor is fixedly arranged in the water tank and used for detecting the water level in the water tank, the water flow sensor is fixedly arranged on the water pipe and used for detecting whether water flows in the water pipe or not, the water pump is connected with the water flow sensor through the water pipe, and the air conditioning system is used for preparing hot water/cold water and supplying the hot water/cold water to the battery pack through the water pipe to heat/cool the battery pack; judging whether the water level in the water tank is in an over-low protection state or not according to data transmitted by the water level sensor; when the water level is judged to be in the no-too-low protection state, processing communication data from the battery management system; judging whether the water pump meets an opening state or not according to the received communication data of the battery management system; when the water pump is judged to meet the starting state, starting the water pump and judging whether the water flow sensor is in a protection state; and when the water flow sensor is judged to be in an unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system. The battery pack has the advantages that the problem of how to exert the optimal performance of the battery pack and prolong the service life of the battery pack is solved.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a vehicle integrated management method according to the present invention;
FIG. 3 is a schematic flow chart illustrating the process of adjusting the temperature of the battery pack based on the communication data of the battery management system when the water flow sensor is determined to be in the unprotected state according to the present invention;
fig. 4 is a schematic flow chart illustrating a process of controlling the battery thermal management system to send a discharge thermal management demand instruction to the air conditioning system if the battery management system is in a discharge mode according to the present invention;
fig. 5 is a schematic flow chart illustrating a process of controlling the battery thermal management system to send a charging thermal management demand instruction to the air conditioning system if the battery management system is in the discharging mode;
fig. 6 is a schematic flow chart illustrating that if the battery management system is in a non-charging/discharging mode, the battery management system is controlled to send a parking thermal management demand instruction to the air conditioning system according to the present invention;
FIG. 7 is a schematic view of the process of determining whether the water level in the water tank is in the over-low protection state according to the data transmitted from the water level sensor according to the present invention;
fig. 8 is a schematic flow chart of the step of determining whether the water pump satisfies the start state according to the received communication data of the battery management system.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Battery thermal management system 20 Battery management system
30 Water level sensor 40 Water tank
50 Air conditioning system 60 Water flow sensor
70 Water pump
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, fig. 1 is a schematic diagram of a terminal structure of a hardware operating environment according to an embodiment of the present invention, fig. 1 is a schematic diagram of a hardware operating environment according to the embodiment of the present invention; FIG. 2 is a schematic flow chart of a vehicle integrated management method according to the present invention; a first embodiment of the present invention provides a vehicle integrated management method, which is applied to a vehicle integrated management system, where the vehicle integrated management system includes: the system comprises a battery thermal management system 10, a battery management system 20, a water level sensor 30, a water tank 40, an air conditioning system 50, a water flow sensor 60 and a water pump 70, wherein a battery pack is arranged in the battery management system 20, and the battery thermal management system 10 is respectively connected with the battery management system 20, the water level sensor 30, the water tank 40, the air conditioning system 50, the water flow sensor 60 and the water pump 70; the water tank 40 is connected with the air conditioning system 50 through a water pipe, the battery management system 20 sends the required temperature of the battery pack and the temperature of the battery pack to the battery thermal management system 10, and the battery thermal management system 10 is used for measuring the temperature of hot water/cold water prepared by the air conditioning system 50; the air conditioning system 50 is connected with the battery pack through a water pipe, the water level sensor 30 is fixedly arranged in the water tank 40 and used for detecting the water level in the water tank 40, the water flow sensor 60 is fixedly arranged on the water pipe and used for detecting whether the water pipe has water flow, and the water pump 70 is connected with the water flow sensor 60 through the water pipe, wherein the air conditioning system 50 prepares hot water/cold water and supplies the hot water/cold water to the battery pack through the water pipe to heat/cool the battery pack;
step S10, according to the data sent by the water level sensor, judging whether the water level in the water tank is in the over-low protection state;
in this embodiment, the battery thermal management system is connected to the battery management system, the water level sensor, the water flow sensor and the air conditioning system in advance, so that the command in the battery thermal management system can be transmitted to the connected battery management system, the water level sensor, the water flow sensor and the air conditioning system, and the data of the battery management system, the air conditioning system, the water level sensor and the water flow sensor is transmitted to the battery thermal management system, wherein the data includes the temperature of the battery pack itself, the battery pack charging and discharging mode and the required temperature.
Specifically, the battery thermal management system is provided with a signal input interface and a signal output interface, is respectively connected with the battery management system, the water level sensor, the water flow sensor, the water temperature sensor, the water pump and the air conditioning system, can receive communication parameters of the battery management system, the on-off states of the water level sensor and the water flow sensor, and the water temperature of an inlet and an outlet of the battery thermal management system, can control the on-off of the water pump, and can send a demand instruction to the air conditioning system.
In this embodiment, after powering on the battery thermal management system, the battery thermal management system first determines whether the water level sensor has too low water level protection: if the water level is too low for protection, the battery thermal management system is in water shortage, the battery thermal management system reports a water level too low fault, and meanwhile, the battery thermal management system is stopped and is not started.
Step S20, when the water level is judged to be in the no-too-low protection state, processing the communication data from the battery management system;
in this embodiment, on the premise that the battery thermal management system determines that the water level is not too low for protection in the previous step, the battery thermal management system processes communication data from the battery management system, and processes the data, where the data specifically includes the temperature of the battery pack itself, the battery pack charge-discharge mode, and the required temperature.
Step S30, judging whether the water pump meets the starting state according to the received communication data of the battery management system;
in this embodiment, parameters in communication data of the battery management system and water temperature data in the battery thermal management system are transmitted to the battery thermal management system, the battery thermal management system performs judgment according to the parameters in the communication data of the battery management system and the water temperature data in the battery thermal management system, and controls to start the water pump according to the judgment that the parameters in the communication data from the battery management system and the water temperature data of the battery thermal management system are within a data range pre-recorded in the battery thermal management system.
Step S40, when the water pump is judged to meet the starting state, the water pump is started and whether the water flow sensor is in the protection state is judged;
in this embodiment, after the battery thermal management system controls to start the water pump, the battery thermal management system receives data from the battery thermal management system to determine whether the water flow sensor is protected or not, and determines whether the water flow sensor is protected or not according to the data from the battery thermal management system to determine whether the water flow sensor is protected or not.
And step S50, when the water flow sensor is judged to be in the unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system.
In this embodiment, under the condition that the battery thermal management system determines that the water flow sensor is unprotected, the battery thermal management system adjusts the battery pack in the battery management system according to parameters in the battery management system, where the parameters include the heat quantity, the discharge state, and the like of the battery.
In this embodiment, the present invention provides a vehicle integrated management method, including: judging whether the water level in the water tank is in an over-low protection state or not according to data transmitted by the water level sensor; when the water level is judged to be in the no-too-low protection state, processing communication data from the battery management system; judging whether the water pump meets an opening state or not according to the received communication data of the battery management system; when the water pump is judged to meet the starting state, starting the water pump and judging whether the water flow sensor is in a protection state; and when the water flow sensor is judged to be in an unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system. The battery pack has the advantages that the problem of how to exert the optimal performance of the battery pack and prolong the service life of the battery pack is solved.
Referring to fig. 3, fig. 3 is a schematic flow chart illustrating a process of adjusting the temperature of the battery pack based on the communication data of the battery management system when the water flow sensor is determined to be in the unprotected state, where the step S50 includes:
step S501, judging the mode of the battery management system when judging that the water flow sensor is in an unprotected state;
in this embodiment, when the battery thermal management system determines that the water flow is in the unprotected state according to the data sent by the water flow sensor, the mode of the battery management system can be specifically adjusted when the mode of the battery management system is determined.
Step S502, if the battery management system is in a charging mode, controlling the battery thermal management system to send a charging thermal management instruction to the air conditioning system;
in this embodiment, when the battery thermal management system receives data from the battery management system and determines that the battery management system is in the charging mode according to the data from the battery management system, the battery thermal air conditioning system is controlled to produce cold water/hot water to cool or heat the vehicle-mounted battery pack.
Step S503, if the battery management system is in a discharging mode, controlling the battery thermal management system to send a discharging thermal management instruction to the air conditioning system;
in this embodiment, when the battery thermal management system receives data from the battery management system and determines that the battery management system is in the discharging mode, the air conditioning system is controlled to produce cold water/hot water to cool or heat the vehicle-mounted battery pack.
And step S504, if the battery management system is in a non-charging and discharging mode, controlling the battery management system to send a parking thermal management instruction to the air conditioning system.
In this embodiment, when the battery management system receives data from the battery management system and determines that the battery management system is in the non-charging/discharging mode according to the data from the battery management system, the air conditioning system is controlled to produce cold/hot water to cool or heat the vehicle-mounted battery pack.
Referring to fig. 4, if the battery management system is in the charging mode, the battery management system is controlled to send a charging thermal management requirement instruction to the air conditioning system in fig. 4, where the step S502 includes:
step S5021, when the battery management system is in a charging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
in this embodiment, after the battery thermal management system determines that the battery management system is in the charging mode, the difference between the water temperature of the air conditioning system and the required temperature of the battery pack is determined.
Step S5022, if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Y1 ℃, controlling the battery thermal management system to start, and sending a high-frequency thermal management requirement charging instruction to the air conditioning system;
in this embodiment, when the battery thermal management system determines that the water temperature of the air conditioning system minus the water temperature required by the battery pack is greater than or equal to Y1 ℃, the battery thermal management system starts to work and sends a high-frequency thermal management demand instruction for charging to the air conditioning system. The air conditioner can adjust the battery pack according to the transmitted charging high-frequency heat management requirement.
Y1 is set in advance in the battery management system as a temperature value, and Y1 is not fixed and is associated with different battery management systems according to different types of vehicles.
Step S5023, if the water temperature of the air conditioning system is less than or equal to Y2 ℃ and the water temperature required by the battery pack is less than Y1 ℃, controlling the battery thermal management system to start, and sending a charging low-frequency thermal management requirement instruction to the air conditioning system;
in this embodiment, when the battery thermal management system determines that the water temperature of the air conditioning system is less than or equal to Y2 ℃ and the water temperature required by the battery pack is less than Y1 ℃, the battery thermal management system is started, a low-frequency thermal management demand command for charging is sent to the air conditioning system, and the air conditioner adjusts the battery pack according to the sent high-frequency thermal management demand for charging.
It should be noted that Y1 and Y2 are preset in the battery management system as temperature values, and Y1 and Y2 are not fixed and are related to different battery thermal management systems according to different types of vehicles, wherein Y1 and Y2 are numerical values, Y1 > Y2 is adjusted according to different battery thermal management systems, Y1 is preferably 10-15 ℃, and Y2 is preferably 5-10 ℃.
And step S5024, if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Y2 ℃, the battery thermal management system is not in standby.
In this embodiment, when the battery thermal management system determines that the water temperature of the air conditioning system minus the required water temperature of the battery pack is less than Y2 ℃, the battery thermal management system is not in standby mode, and a charging low-frequency thermal management demand instruction is not sent to the air conditioning system.
Referring to fig. 5, fig. 5 is a flowchart illustrating a process of controlling a battery thermal management system to send a discharging thermal management requirement instruction to an air conditioning system if the battery management system is in a discharging mode according to the present invention, where the step S503 includes:
step S5031, when the battery management system is in a discharging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
in this embodiment, after the battery thermal management system determines that the battery management system is in the discharging mode, the battery thermal management system determines a difference between the water temperature and the required temperature of the battery pack.
Step S5032, if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Z1 ℃, starting the battery thermal management system, and sending a discharge high-frequency thermal management instruction to the air conditioning system;
in this embodiment, when the battery thermal management system determines that the water temperature of the air conditioning system minus the water temperature required by the battery pack is greater than or equal to Z1 ℃, the battery thermal management system is started and sends a discharge high-frequency thermal management instruction to the air conditioning system, and the air conditioner adjusts the battery pack according to the sent discharge high-frequency thermal management instruction.
Step S5033, if the water temperature of the air conditioning system is lower than or equal to Z2 ℃ and the water temperature required by the battery pack is lower than Z1 ℃, controlling the battery thermal management system to start, and sending a discharging low-frequency thermal management instruction to the air conditioning system;
in this embodiment, when the battery thermal management system determines that the water temperature of the air conditioning system is less than or equal to Z2 ℃ and the water temperature required by the battery pack is less than Z1 ℃, the battery thermal management system is started, and a discharging low-frequency thermal management demand instruction is sent to the air conditioning system, so that the air conditioner can adjust the battery pack according to the sent discharging low-frequency thermal management demand, and specifically, the temperature is raised or lowered according to the demands of different battery thermal management systems.
Step S5034, if the water temperature of the air conditioning system minus the required water temperature of the battery pack is less than Z2 ℃, controlling the battery thermal management system to be in standby.
In this embodiment, the battery thermal management system determines that the temperature of the air conditioning system minus the battery pack required water temperature is less than Z2 ℃, and the battery thermal management system is not on standby and does not send a discharging low-frequency thermal management demand instruction to the air conditioning system.
Wherein Z1 and Z2 are numerical values, Z1 is more than Z2, and Z1 is preferably 10-15 ℃ and Z2 is preferably 5-10 ℃ according to different battery thermal management systems.
In this embodiment, based on the battery management system being in the discharging mode, the difference between the water temperature and the required temperature of the battery pack is determined; when the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Z1 ℃, starting the battery thermal management system and sending a discharging high-frequency thermal management requirement instruction to the air conditioning system; when the water temperature of the air conditioning system is less than or equal to Z2 ℃ and the water temperature required by the battery pack is less than Z1 ℃, starting the battery thermal management system, and sending a discharging low-frequency thermal management requirement instruction to the air conditioning system; and when the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Z2 ℃, the battery thermal management system is not started in a standby state. When the battery thermal management system recognizes that the battery management system is in a discharging mode and corresponds to the difference value between the water temperature and the required temperature of the battery pack, the working state of the battery thermal management system and the working state of the air conditioning system are controlled, so that the optimal performance of the battery pack is exerted, and the service life of the battery pack is prolonged.
Referring to fig. 6, fig. 6 is a flowchart illustrating a process of controlling a battery thermal management system to send a parking low-frequency thermal management demand command to an air conditioning system if a battery management system is in a non-charge/discharge mode according to the present invention, where step S504 includes:
in step S5041, when the battery management system is in the non-charge/discharge mode: judging the difference value of the temperature of the battery pack minus the temperature of the air conditioning system;
in this embodiment, the water temperature is the actual temperature of the water in the air conditioning system, and after the battery thermal management system determines that the battery management system is in the non-charging/discharging mode, the difference between the water temperature in the air conditioning system and the required temperature of the battery pack is determined.
Step S5042, when the temperature of the battery pack minus the water temperature of the air conditioning system is more than or equal to X ℃, controlling the battery thermal management system to start, and sending a parking low-frequency thermal management instruction to the air conditioning system;
in this embodiment, when the battery thermal management system determines that the temperature of the battery pack minus the water temperature of the air conditioning system is greater than or equal to X ℃, the battery thermal management system is started, and a parking low-frequency thermal management demand instruction is sent to the air conditioning system, the air conditioner heats up or cools down the battery pack, and the air conditioner heats up or cools down the battery pack according to the demands of different battery thermal management systems.
And step S5043, when the temperature of the battery pack minus the water temperature of the air conditioning system is less than X ℃, controlling the battery thermal management system to be in standby state.
In this embodiment, based on the battery management system being in the non-charging/discharging mode: judging the difference value of the temperature of the battery pack minus the required temperature; when the temperature of the battery pack minus the water temperature of the air conditioning system is more than or equal to X ℃, starting the battery thermal management system and sending a parking low-frequency thermal management demand instruction to the air conditioning system; when the temperature of the battery pack minus the water temperature of the air conditioning system is less than X ℃, the battery thermal management system is not in standby, wherein X is a numerical value and is adjusted according to different thermal management systems, and preferably, X is 5-10 ℃. The battery management system can be in a non-charging and discharging mode, the energy loss of the battery pack is reduced to the maximum extent, and the service life of the battery pack is prolonged.
Referring to fig. 7, fig. 7 is a schematic flow chart illustrating the step S10 of determining whether the water level in the water tank satisfies the protection condition according to the parameters preset in the battery thermal management system, where the step S10 includes:
step S101, judging whether the water level is protected by too low water level according to the data transmitted by the water level sensor;
step S102, if yes, the battery thermal management system reports a fault of too low water level and controls the battery thermal management system to be in a standby state;
and step S103, if not, the water level is in a no-too-low protection state, and communication data from the battery management system are processed.
In the embodiment, whether the water level sensor is protected by too low water level is judged according to the connection of the battery thermal management system and the water level sensor; if the water level is protected too low, the battery thermal management system reports a fault of too low water level, and meanwhile, the thermal management machine is stopped and is not started; if the water level is not protected too low, the battery thermal management system processes communication data from the battery management system, the fault that the water level is too low is reported due to the protection that the water level is too low, meanwhile, the thermal management machine is stopped and is not started, and the service life of the battery pack is prolonged.
Referring to fig. 8, fig. 8 is a flowchart illustrating a step of determining whether a water pump satisfies an open state according to communication data of a battery management system, where the step S30 includes:
step S301, judging whether the water pump needs to be started or not according to the communication data received by the battery thermal management system;
step S302, if the battery thermal management system is in a charging mode or a discharging mode or the temperature of the battery pack minus the temperature of the air conditioning system is more than or equal to X ℃, starting a water pump to meet the condition that the water pump is in a starting state;
and step S303, if not, the water pump is not started.
In this embodiment, the parameters in the communication data of the battery management system mainly include the temperature of the battery cell of the battery pack, the charging and discharging mode of the battery pack, and the required temperature, and whether the water pump needs to be started is determined according to the parameters of the battery management system and the water temperature of the battery thermal management system.
In this embodiment, whether to start the water pump is determined based on parameters in the communication data of the battery management system and the water temperature of the battery thermal management system, if the battery management system is in the charging mode, the discharging mode and when the water temperature subtracted from the battery pack required temperature is greater than or equal to X ℃, the water pump is started, otherwise, the water pump is not started, the battery thermal management system is in a standby state, X is a value preset in the battery thermal management system and is changed according to different battery thermal management systems, and X is preferably 5-10 ℃. The reduction of unnecessary energy loss of the battery pack is realized.
An eighth embodiment of the present invention is proposed based on the first embodiment of the present invention, and the step S40 described above includes:
step S401, when the water pump is judged to meet the starting state, whether a water flow sensor of the battery thermal management system reports water flow protection is judged;
step S402, if yes, stopping the heat management system and not starting the heat management system, and simultaneously stopping the water pump and reporting the fault of the water pump by the heat management system;
and step S403, if not, the water flow sensor is unprotected.
In this embodiment, when the water pump is judged to meet the starting state, whether the water flow sensor of the battery thermal management system reports water flow protection or not is judged, if so, the thermal management system is stopped and is not started, meanwhile, the thermal management system closes the water pump and reports a fault of the water pump, and if not, the water flow sensor is not started, so that the electric quantity of the battery pack is saved, and the electric quantity of the battery pack is not wasted by controlling the water flow sensor to start under the condition that the water flow protection is not reported.
In this embodiment, on one hand, the battery thermal management system is communicated with an air conditioning system of a passenger car, a demand instruction is sent to the air conditioning system, and the air conditioning system is used for preparing cold water or hot water to realize cooling or heating of the battery pack, so that battery thermal management is realized; on the other hand, the battery thermal management system is communicated with a battery management system of the whole vehicle, parameters of the battery management system are monitored in real time, the parameters mainly comprise the temperature of a battery cell of the battery pack, a charging and discharging mode and required temperature of the battery pack, starting and stopping of battery thermal management are judged according to the parameters and the water temperature of the battery management system, corresponding thermal management frequency (capacity) requirements are provided for the charging and discharging mode of the battery management system, the refrigerating water or hot water capacity output of an air conditioning system is correspondingly adjusted, and accurate thermal management of the battery pack is achieved.
The battery thermal management system is respectively in data communication with an air conditioning system and a battery management system of a pure electric bus, the air conditioning system is used for cooling or heating the vehicle-mounted battery pack, corresponding thermal management frequency (capacity) requirements are provided for the charging and discharging modes of the battery management system, closed-loop linkage control of battery thermal management is achieved, and the problems that the temperature control is not timely and inaccurate in a non-linkage mode, the effect is poor and energy is wasted are solved.
In addition, the judgment and judgment of the water level in the water path of the battery thermal management system and the working state of the water pump are introduced, so that the battery thermal management system can be started only under the conditions that the water level reaches the standard and the water pump works normally (a water flow sensor is not protected), and the safety and the reliability of the operation of the battery thermal management system are guaranteed.
The invention also provides a computer readable storage medium, on which a vehicle-based integrated management program is stored, which when executed by a processor implements the following steps:
judging whether the water level in the water tank is in an over-low protection state or not according to data transmitted by the water level sensor;
when the water level is judged to be in the no-too-low protection state, processing communication data from the battery management system;
judging whether the water pump meets an opening state or not according to the received communication data of the battery management system;
when the water pump is judged to meet the starting state, starting the water pump and judging whether the water flow sensor is in a protection state;
and when the water flow sensor is judged to be in an unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
when the water flow sensor is judged to be in an unprotected state, judging the mode of the battery management system;
if the battery management system is in a charging mode, controlling the battery thermal management system to send a charging thermal management instruction to the air conditioning system;
if the battery management system is in a discharging mode, controlling the battery thermal management system to send a discharging thermal management instruction to the air conditioning system;
and if the battery management system is in a non-charging and discharging mode, controlling the battery thermal management system to send a parking low-frequency thermal management instruction to the air conditioning system.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
when the battery management system is in a charging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Y1 ℃, controlling the battery thermal management system to start, and sending a high-frequency thermal management demand instruction to the air conditioning system;
if the temperature of Y2 ℃ is less than or equal to the temperature of the air conditioning system and the temperature of the water required by the battery pack is less than Y1 ℃, controlling the battery thermal management system to start, and sending a charging low-frequency thermal management demand instruction to the air conditioning system;
and if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Y2 ℃, controlling the battery thermal management system to be in a standby state.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
when the battery management system is in a discharging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Z1 ℃, starting the battery thermal management system and sending a discharge high-frequency thermal management instruction to the air conditioning system;
if the temperature of Z2 ℃ is less than or equal to the temperature of the air conditioning system and the water temperature required by the battery pack is less than Z1 ℃, controlling the battery thermal management system to start and sending a discharging low-frequency thermal management instruction to the air conditioning system;
and if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Z2 ℃, controlling the battery thermal management system not to be in standby.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
when the battery management system is in a non-charging and discharging mode: judging the difference value of the temperature of the battery pack minus the temperature of the air conditioning system;
when the temperature of the battery pack minus the water temperature of the air conditioning system is more than or equal to X ℃, controlling the battery thermal management system to start, and sending a parking low-frequency thermal management instruction to the air conditioning system;
and when the temperature of the battery pack minus the water temperature of the air conditioning system is less than X ℃, controlling the battery thermal management system to be in standby state.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
judging whether the water level is protected by too low water level according to the data transmitted by the water level sensor;
if yes, the battery thermal management system reports a fault that the water level is too low, and meanwhile the battery thermal management system is controlled not to be started in a standby mode;
if not, the water level is judged to be in the no-too-low protection state, and communication data from the battery management system are processed.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
judging whether the water pump needs to be started or not according to the communication data received by the battery management system;
if the battery management system is in a charging mode or a discharging mode or the temperature of the battery pack minus the temperature of the air conditioning system is more than or equal to X ℃, the water pump is started to meet the condition that the water pump is in a starting state;
if not, the water pump is not started.
Further, when executed by the processor, the vehicle-based integrated management program implements the following steps:
when the water pump is judged to meet the starting state, judging whether a water flow sensor of the battery thermal management system reports water flow protection;
if yes, stopping the heat management system and not starting the heat management system, and simultaneously stopping the water pump and reporting the fault of the water pump by the heat management system;
if not, the water flow sensor is not protected.
In view of the above object, an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program can execute the vehicle-based integrated management method in any of the above method embodiments and the vehicle-based integrated management use device/system in any of the above device/system embodiments. Embodiments of the computer-readable storage medium may achieve the same or similar effects as any of the aforementioned method and apparatus/system embodiments corresponding thereto.
In view of the above object, an embodiment of the present invention provides a computer program product, which includes a computer program stored on a computer-readable storage medium, where the computer program includes instructions that, when executed by a computer, cause the computer to execute a method for using a vehicle integrated management method in any of the above method embodiments and an apparatus/system for using the vehicle integrated management method in any of the above apparatus/system embodiments. Embodiments of the computer program product may achieve the same or similar effects as any of the aforementioned method and apparatus/system embodiments corresponding thereto.
Finally, it should be noted that, as will be understood by those skilled in the art, all or part of the processes of the methods of the above embodiments may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM) or a Random Access Memory (RAM), and the like. Embodiments of the computer program may achieve the same or similar effects as any of the preceding method embodiments to which it corresponds.
Further, it should be appreciated that the computer-readable storage media (e.g., memory) described herein can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. By way of example, and not limitation, nonvolatile memory can include Read Only Memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which can act as external cache memory. By way of example and not limitation, RAM is available in a variety of forms such as synchronous RAM (DRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The storage devices of the disclosed aspects are intended to comprise, without being limited to, these and other suitable types of memory.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as software or hardware depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments of the present invention.
The various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein may be implemented or performed with the following components designed to perform the functions described herein: a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these components. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP, and/or any other such configuration.
The steps of a method or algorithm described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD minus ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.
In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk, blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that, as used herein, the singular forms "a," "an," "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The numbers of the embodiments disclosed in the embodiments of the present invention are merely for description, and do not represent the merits of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A vehicle integrated management method is applied to a vehicle integrated management system, and the vehicle integrated management system comprises: the water-cooling system comprises a battery thermal management system, a battery management system, a water level sensor, a water tank, an air conditioning system, a water flow sensor and a water pump, wherein the battery management system comprises a battery pack and is respectively connected with the battery management system, the water level sensor, the water tank, the air conditioning system, the water flow sensor and the water pump; the battery management system is used for measuring the temperature of hot water/cold water produced by the air conditioning system; the air conditioning system is connected with the battery pack through a water pipe, the water level sensor is fixedly arranged in the water tank and used for detecting the water level in the water tank, the water flow sensor is fixedly arranged on the water pipe and used for detecting whether water flows in the water pipe or not, the water pump is connected with the water flow sensor through the water pipe, and the air conditioning system is used for preparing hot water/cold water and supplying the hot water/cold water to the battery pack through the water pipe to heat/cool the battery pack;
judging whether the water level in the water tank is in an over-low protection state or not according to data transmitted by the water level sensor;
when the water level is judged to be in the no-too-low protection state, processing communication data from the battery management system;
judging whether the water pump meets an opening state or not according to the received communication data of the battery management system;
when the water pump is judged to meet the starting state, starting the water pump and judging whether the water flow sensor is in a protection state;
and when the water flow sensor is judged to be in an unprotected state, adjusting the temperature of the battery pack based on the communication data of the battery management system.
2. The integrated management method for vehicles according to claim 1, wherein the step of adjusting the temperature of the battery pack based on the communication data of the battery management system when it is determined that the water flow sensor is in the unprotected state comprises:
when the water flow sensor is judged to be in an unprotected state, judging the mode of the battery management system;
if the battery management system is in a charging mode, controlling the battery thermal management system to send a charging thermal management instruction to the air conditioning system;
if the battery management system is in a discharging mode, controlling the battery thermal management system to send a discharging thermal management instruction to the air conditioning system;
and if the battery management system is in a non-charging and discharging mode, controlling the battery thermal management system to send a parking thermal management instruction to the air conditioning system.
3. The integrated vehicle management method according to claim 2, wherein if the battery management system is in the charging mode, the step of controlling the battery thermal management system to send the charging thermal management command to the air conditioning system comprises:
when the battery management system is in a charging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Y1 ℃, controlling the battery thermal management system to start, and sending a high-frequency thermal management demand instruction to the air conditioning system;
if the temperature of Y2 ℃ is less than or equal to the temperature of the air conditioning system and the temperature of the water required by the battery pack is less than Y1 ℃, controlling the battery thermal management system to start, and sending a charging low-frequency thermal management demand instruction to the air conditioning system;
and if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Y2 ℃, controlling the battery thermal management system to be in a standby state.
4. The integrated vehicle management method according to claim 2, wherein if the battery management system is in a discharging mode, the step of controlling the battery thermal management system to send a discharging thermal management command to the air conditioning system comprises:
when the battery management system is in a discharging mode, judging the difference value of the water temperature of the air conditioning system minus the water temperature required by the battery pack;
if the water temperature of the air conditioning system minus the water temperature required by the battery pack is more than or equal to Z1 ℃, starting the battery thermal management system and sending a discharge high-frequency thermal management instruction to the air conditioning system;
if the temperature of Z2 ℃ is less than or equal to the temperature of the air conditioning system and the water temperature required by the battery pack is less than Z1 ℃, controlling the battery thermal management system to start and sending a discharging low-frequency thermal management instruction to the air conditioning system;
and if the water temperature of the air conditioning system minus the water temperature required by the battery pack is less than Z2 ℃, controlling the battery thermal management system not to be in standby.
5. The vehicle integrated management method according to claim 2, wherein if the battery management system is in the non-charging and non-discharging mode, the step of controlling the battery thermal management system to send the parking thermal management command to the air conditioning system comprises:
when the battery management system is in a non-charging and discharging mode: judging the difference value of the temperature of the battery pack minus the temperature of the air conditioning system;
when the temperature of the battery pack minus the water temperature of the air conditioning system is more than or equal to X ℃, controlling the battery thermal management system to start, and sending a parking low-frequency thermal management instruction to the air conditioning system;
and when the temperature of the battery pack minus the water temperature of the air conditioning system is less than X ℃, controlling the battery thermal management system to be in standby state.
6. The integrated vehicle management method according to claim 1, wherein the step of determining whether the water level in the water tank is in the underlow protection state according to the data transmitted from the water level sensor comprises:
judging whether the water level is protected by too low water level according to the data transmitted by the water level sensor;
if yes, the battery thermal management system reports a fault that the water level is too low, and meanwhile the battery thermal management system is controlled not to be started in a standby mode;
if not, the water level is in a no-over-low protection state, and communication data from the battery management system are processed.
7. The integrated management method for vehicles according to claim 1, wherein the step of determining whether the water pump satisfies the start-up state according to the received communication data of the battery management system comprises:
judging whether the water pump needs to be started or not according to the communication data received by the battery thermal management system;
if the battery thermal management system is in a charging mode or a discharging mode or the temperature of the battery pack minus the temperature of the air conditioning system is more than or equal to X ℃, starting the water pump to ensure that the water pump is in a starting state;
if not, the water pump is not started.
8. The integrated management method for the vehicle according to claim 1, wherein the step of starting the water pump and judging whether the water flow sensor is in a protection state when judging that the water pump satisfies the start state comprises:
when the water pump is judged to meet the starting state, judging whether a water flow sensor of the battery thermal management system reports water flow protection;
if yes, stopping the heat management system and not starting the heat management system, and simultaneously stopping the water pump and reporting the fault of the water pump by the heat management system;
if not, the water flow sensor is not protected.
9. A computer-readable storage medium, characterized in that a vehicle integrated management method program is stored thereon, which when executed by a processor, implements the steps of the vehicle integrated management method according to any one of claims 1 to 8.
CN201811654802.9A 2018-12-29 2018-12-29 Vehicle integrated management method and medium Active CN109664723B (en)

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