CN112311075B - Solar-energy-based automobile energy storage control method and device and automobile - Google Patents
Solar-energy-based automobile energy storage control method and device and automobile Download PDFInfo
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- CN112311075B CN112311075B CN201910690320.7A CN201910690320A CN112311075B CN 112311075 B CN112311075 B CN 112311075B CN 201910690320 A CN201910690320 A CN 201910690320A CN 112311075 B CN112311075 B CN 112311075B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
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- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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 provides an automobile energy storage control method, an automobile energy storage control device and an automobile based on solar energy, wherein the method comprises the steps that when a solar controller monitors that the power supply power of a solar panel reaches preset power, the solar controller acquires a battery charge state value of a storage battery and an error state value of the battery charge state from a storage battery sensor; and when the battery charge state value is smaller than a preset battery charge state threshold value and the error state value is smaller than a preset error state threshold value, the solar controller controls the solar panel to charge the storage battery. The invention solves the technical problems that when the error value of the battery charge state of the storage battery is overlarge, the solar battery assembly cannot accurately judge the current state of the storage battery, the storage battery cannot be effectively charged, or the storage battery generates backflow to the solar battery assembly, and the solar battery assembly is damaged.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile energy storage control method and device based on solar energy and an automobile.
Background
At present, most of automobiles with the function of storing energy by utilizing solar energy are connected with a storage battery through a wire, and the solar cell module directly charges the storage battery after converting solar energy into electric energy, so that the power shortage of the automobile storage battery can be prevented. After the storage battery is used for a long time or repeatedly charged and discharged, a large error may exist in a battery state of charge (SOC value) of the storage battery, and since the charging current of the conventional charging pile is large, even if the SOC value of the storage battery has an error, the charging influence on charging is not large, however, the charging power of the solar battery module is limited, and high-power and high-current charging similar to that of the charging pile cannot be realized at present, when the SOC value error of the storage battery is too large, the state of the current storage battery cannot be accurately judged by the solar battery module, and the problem that the storage battery cannot be effectively charged or reflows to the solar battery module may be caused, so that damage is caused to the solar battery module. And when the storage battery is kept still for a period of time, and the internal chemical state is relatively stable, the storage battery capacity sensor can complete self calibration in a voltage detection mode to eliminate errors, and the charging current of the solar energy can damage the standing state of the storage battery to influence the self calibration of the storage battery.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automobile energy storage control method and device based on solar energy and an automobile, wherein when the battery charge state value error of a storage battery is overlarge, the storage battery is not charged, and the self-calibration of the storage battery is prevented from being influenced by damage to the static state of the storage battery.
In order to solve the technical problem, the invention provides an automobile energy storage control method based on solar energy, which comprises the following steps:
when the solar controller monitors that the power supply power of the solar panel reaches a preset power, the solar controller acquires a battery charge state value of the storage battery and an error state value of the battery charge state from a storage battery sensor;
and when the battery charge state value is smaller than a preset battery charge state threshold value and the error state value is smaller than a preset error state threshold value, the solar controller controls the solar panel to charge the storage battery.
Further, the method further comprises:
when the solar panel starts to charge the storage battery, the solar controller continuously acquires the battery charge state value of the storage battery and the error state value of the battery charge state value from the storage battery sensor, and when the battery charge state value is larger than a preset battery charge state threshold value or the error state value is larger than a preset error state threshold value, the solar controller controls the solar panel to stop charging the storage battery.
Further, the method further comprises:
when the solar panel starts to charge the storage battery, the solar controller continuously acquires the battery charge state value of the storage battery and the error state value of the battery charge state value from the storage battery sensor, and when the battery charge state value is larger than a preset battery charge state threshold value or the error state value is larger than a preset error state threshold value, the solar controller controls the solar panel to stop charging the storage battery.
Further, the method further comprises:
the solar controller obtains the temperature and the illumination intensity of the current environment where the solar panel is located, calculates the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm, and adjusts the voltage of the solar panel for charging the storage battery according to the maximum output power.
Further, the preset error state threshold is 15%.
Further, the battery sensor is a battery capacity sensor.
The invention provides an automobile energy storage control device based on solar energy, which comprises a solar panel and a storage battery, and further comprises:
the solar controller is used for acquiring a battery charge state value of the storage battery and an error state value of the battery charge state from the storage battery sensor when the power supply power of the solar panel reaches a preset power, and controlling the solar panel to charge the storage battery when the battery charge value is smaller than a preset battery charge threshold value and the error state value is smaller than a preset error state threshold value.
Further, the solar controller is further configured to:
when the solar cell panel starts to charge the storage battery, continuously acquiring a battery charge state value of the storage battery and an error state value of the battery charge state value from the storage battery sensor, and when the battery charge value is larger than a preset battery charge threshold value or the error state value is larger than a preset error state threshold value, controlling the solar cell panel to stop charging the storage battery.
Further, the solar controller further comprises:
the power calculation module is used for acquiring the temperature and the illumination intensity of the current environment where the solar panel is located and calculating the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm;
and the voltage regulating module is used for regulating the voltage charged to the storage battery by the solar panel according to the maximum output power.
Further, the battery sensor is a battery capacity sensor.
The invention provides an automobile which comprises the automobile energy storage control device based on solar energy.
The implementation of the invention has the following beneficial effects:
the solar battery pack charging method and the solar battery pack charging system have the advantages that whether the electric quantity state of the storage battery meets the solar charging requirement or not is accurately judged by judging the battery charge state of the storage battery and the error value of the battery charge state, after the electric quantity state of the storage battery meets the solar charging requirement is confirmed, the solar battery panel is controlled to charge the storage battery, and the problem that in the prior art, when the error value of the battery charge state of the storage battery is too large, the current state of the storage battery cannot be accurately judged by the solar battery pack, the storage battery cannot be effectively charged or can not flow back to the solar battery pack, and damage is caused to the solar battery pack is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a solar-based vehicle energy storage control method according to an embodiment of the present invention.
Fig. 2 is a working schematic diagram of a solar-based vehicle energy storage control device according to an embodiment of the present invention.
Fig. 3 is a structural diagram of an automotive energy storage control device based on solar energy according to an embodiment of the present invention.
Detailed Description
The present patent determines whether to charge the storage battery by determining the state of charge of the storage battery, and the following describes the specific embodiment with reference to the accompanying drawings and examples.
As shown in fig. 1, an embodiment of the present invention provides a solar energy-based automobile energy storage control method, where the method includes:
and step S11, when the solar controller monitors that the power supply power of the solar panel reaches the preset power, the solar controller acquires the battery charge state value of the storage battery and the error state value of the battery charge state from the storage battery sensor.
It should be noted that, the background executed in step S11 described above with reference to fig. 2 is that when the ignition switch of the vehicle is switched from the ON position to the OFF position, the relay disconnects the first power supply circuit connecting the storage battery and the air conditioner blower under the power-OFF control of the first vehicle-mounted power signal, connects the second power supply circuit connecting the solar controller, the solar panel and the storage battery, and connects the third power supply circuit connecting the solar controller, the solar panel and the air conditioner blower; when the state of the storage battery is judged to accord with the charging condition, the storage battery is charged firstly, and when the storage battery does not accord with the charging condition, power can be supplied to the air conditioner blower.
And step S12, when the battery charge state value is smaller than a preset battery charge state threshold value and the error state value is smaller than a preset error state threshold value, the solar controller controls the solar panel to charge the storage battery.
It should be noted that, when the battery capacity sensor usually adopts an integration method to estimate the SOC value of the vehicle-mounted 12V battery, when the bus is awakened, the battery capacity sensor sends the SOC value and the error state of the SOC value to the bus for other nodes to collect and judge and execute related functions, such as low power reminding, and the integration estimation method may cause the error to continuously accumulate and increase with time, and when the error state of the SOC value is not trusted, such as the error is greater than 15%, the related functions may not work normally. When the storage battery is placed still (the charging and discharging current is extremely small) for a period, and the internal chemical state is relatively stable, the storage battery capacity sensor can complete self calibration in a voltage detection mode, and errors are eliminated. The charging current of the solar charging function can damage the standing state, so that the voltage of the storage battery is high, the self-calibration of the storage battery capacity sensor is not completed, and the self-calibration is facilitated by closing the solar charging function in the parking process.
Further, the damage to the solar panel assembly caused by the fact that the storage battery cannot be effectively charged or the storage battery generates backflow to the solar panel assembly can be avoided through the step S12.
Further, the method further comprises:
the solar controller obtains the temperature and the illumination intensity of the current environment where the solar panel is located, calculates the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm, and adjusts the voltage of the solar panel for charging the storage battery according to the maximum output power.
Further, the preset error state threshold is 15%.
Further, the battery sensor is a battery capacity sensor.
Referring to fig. 2, when the vehicle is switched from the ON range to the OFF range, the first ON-board power signal 11(IG1) de-energizes the control relay 12, causing the first power supply circuit connecting the storage battery 3 with the air conditioner blower 4 to be disconnected, the second power supply circuit connecting the connection of the solar controller 1, the solar panel 2 with the storage battery 3, and the third power supply circuit connecting the solar controller 1, the solar panel 2, and the air conditioner blower 4;
When the vehicle is in the ON range, the battery capacity sensor 10 acquires the battery state of charge value of the battery 3 and the error state value of the battery state of charge, the solar controller 1 acquires the battery state of charge value and the error state value of the battery state of charge from the battery capacity sensor 10, and the solar controller 1 controls whether or not the solar panel 2 charges the battery 3 based ON the data.
Certainly, after the solar controller 1 controls the solar panel 2 to start charging the storage battery 3, the solar controller 1 will continuously obtain the above data, and once the storage battery 3 is found not to meet the charging condition, the solar controller 1 controls the solar panel 2 to stop charging the storage battery.
Referring to fig. 2, the above-mentioned manner is to protect the high-voltage dc-dc converter 52, especially when the high-voltage dc-dc converter 52 has no anti-reverse charging circuit, the solar controller 1 monitors that the output voltage of the high-voltage dc-dc converter 52 is pulled high, so as to adjust and reduce the charging voltage of the storage battery 3.
It should be added that the in-vehicle entertainment device 8 and the air conditioner controller 9 may be used to make some settings for the system and to adjust the operation of the air conditioner blower 4, and the in-vehicle temperature sensor 6 is used to monitor the in-vehicle temperature.
As shown in fig. 3, an embodiment of the present invention provides an automobile energy storage control device based on solar energy, where the device includes a solar panel 2 and a storage battery 3, and is characterized in that the device further includes:
the solar controller 1 is configured to obtain a battery charge state value of the storage battery 3 and an error state value of the battery charge state from the storage battery sensor 10 when the power supply power of the solar panel 2 reaches a preset power, and control the solar panel 2 to charge the storage battery 3 when the battery charge value is smaller than a preset battery charge threshold and the error state value is smaller than a preset error state threshold.
Further, the solar controller 1 is further configured to:
when the solar panel 2 starts to charge the storage battery 3, continuously acquiring the battery charge state value of the storage battery 3 and the error state value of the battery charge state value from the storage battery sensor 10, and when the battery charge value is larger than a preset battery charge threshold value or the error state value is larger than a preset error state threshold value, controlling the solar panel 2 to stop charging the storage battery 3.
Further, the solar controller 1 further includes:
the power calculation module 11 is configured to obtain a temperature and an illumination intensity of a current environment where the solar panel is located, and calculate a maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm;
and the voltage regulating module 12 is used for regulating the voltage charged to the storage battery 3 by the solar panel according to the maximum output power.
Further, the battery sensor 10 is a battery capacity sensor.
The embodiment of the invention provides an automobile which comprises the automobile energy storage control device based on solar energy.
The implementation of the invention has the following beneficial effects:
the solar battery pack charging method and the solar battery pack charging system have the advantages that whether the electric quantity state of the storage battery meets the solar charging requirement or not is accurately judged by judging the battery charge state of the storage battery and the error value of the battery charge state, after the electric quantity state of the storage battery meets the solar charging requirement is confirmed, the solar battery panel is controlled to charge the storage battery, and the problem that in the prior art, when the error value of the battery charge state of the storage battery is too large, the current state of the storage battery cannot be accurately judged by the solar battery pack, the storage battery cannot be effectively charged or can not flow back to the solar battery pack, and damage is caused to the solar battery pack is solved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (8)
1. A solar-based automobile energy storage control method is characterized by comprising the following steps:
when the solar controller monitors that the power supply power of the solar panel reaches a preset power, the solar controller acquires a battery charge state value of the storage battery and an error state value of the battery charge state from a storage battery sensor;
when the battery charge state value is smaller than a preset battery charge state threshold value and the error state value is smaller than a preset error state threshold value, the solar controller controls the solar panel to charge the storage battery;
when the solar panel starts to charge the storage battery, the solar controller continuously acquires the battery charge state value of the storage battery and the error state value of the battery charge state value from the storage battery sensor, and when the battery charge state value is larger than a preset battery charge state threshold value or the error state value is larger than a preset error state threshold value, the solar controller controls the solar panel to stop charging the storage battery.
2. The method of claim 1, wherein the method further comprises:
the solar controller obtains the temperature and the illumination intensity of the current environment where the solar panel is located, calculates the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm, and adjusts the voltage of the solar panel for charging the storage battery according to the maximum output power.
3. The method of claim 1, wherein the preset error state threshold is 15%.
4. The method of claim 1, wherein the battery sensor is a battery capacity sensor.
5. The utility model provides an automobile energy storage controlling means based on solar energy, the device includes solar cell panel, battery, its characterized in that, the device still includes:
the solar controller is used for acquiring a battery charge state value of the storage battery and an error state value of the battery charge state from a storage battery sensor when the power supply power of the solar panel reaches a preset power, and controlling the solar panel to charge the storage battery when the battery charge value is smaller than a preset battery charge threshold value and the error state value is smaller than a preset error state threshold value; and the solar panel is further used for continuously acquiring the battery charge state value of the storage battery and the error state value of the battery charge state value from the storage battery sensor after the solar panel starts to charge the storage battery, and controlling the solar panel to stop charging the storage battery when the battery charge value is greater than a preset battery charge threshold value or the error state value is greater than a preset error state threshold value.
6. The apparatus of claim 5, wherein the solar controller further comprises:
the power calculation module is used for acquiring the temperature and the illumination intensity of the current environment where the solar panel is located and calculating the maximum output power of the solar panel in the current environment according to a maximum power point tracking algorithm;
and the voltage regulating module is used for regulating the voltage charged to the storage battery by the solar panel according to the maximum output power.
7. The apparatus of claim 5, wherein the battery sensor is a battery capacity sensor.
8. An automobile, characterized in that the automobile comprises a device according to any one of claims 5 to 7.
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| CN201910690320.7A CN112311075B (en) | 2019-07-29 | 2019-07-29 | Solar-energy-based automobile energy storage control method and device and automobile |
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| CN201910690320.7A CN112311075B (en) | 2019-07-29 | 2019-07-29 | Solar-energy-based automobile energy storage control method and device and automobile |
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