CN111830411A - Vehicle storage battery aging control system and vehicle - Google Patents
Vehicle storage battery aging control system and vehicle Download PDFInfo
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- G—PHYSICS
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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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
- H01M10/44—Methods for charging or discharging
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a vehicle storage battery aging control system and a vehicle comprising the same, wherein the vehicle storage battery aging control system calculates aging values of related vehicle storage batteries in different charge states by using a battery aging model, and judges whether the vehicle storage batteries need to be charged according to the aging values, when the aging values are larger than a first aging protection threshold value, an instruction for executing one-time full-load charging on the vehicle storage batteries is output, so that the full-load charging can be timely carried out according to needs before the permanent battery performance is reduced due to the fact that the batteries work in an unsaturated state for a long time, the aging speed of the vehicle storage batteries can be reduced, and the service life of the vehicle storage batteries can be prolonged.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to an aging control system for a vehicle storage battery and a vehicle.
Background
Batteries such as lead-acid batteries, nickel metal hydride batteries, and lithium ion batteries have been widely used in various vehicles. Taking an electric vehicle as an example, the electric vehicle usually includes an auxiliary battery for supplying power to a vehicle voltage electrical apparatus and a control system, in addition to a power battery for supplying power to a high-voltage driving component. Because the lead-acid battery has the advantages of low price, abundant material sources, higher specific power, mature technology and manufacturing process, high resource recovery rate and the like, the auxiliary battery usually adopts a 12V lead-acid battery and can supply power for various electric loads such as an engine, an instrument, illumination, an air conditioner and other auxiliary electrical appliances. In order to save fuel as much as possible, the power of the power generation assembly is generally determined according to the power demand of the vehicle electric load and the actual electric quantity of the lead-acid battery.
With the development of the technology, the comprehensive performance of the vehicle storage battery is greatly improved, but the aging problem is still more prominent. Still taking a 12V lead-acid battery for a vehicle as an example, because internal resistances of batteries in different states of Charge (SOC) are different, in order to effectively reduce internal resistance load consumption of the battery, the 12V lead-acid battery is not always operated in a State where SOC is 100% (i.e., a full Charge State) in actual operation. However, due to the physical characteristics of such batteries, if the batteries are in an unsaturated rated capacity state for a long time, the rated power upper limit and the maximum chargeable quantity of the batteries are reduced, and the aging speed of the batteries is accelerated.
Disclosure of Invention
The invention provides an aging control system for a vehicle storage battery, which aims to obtain the aging state of the vehicle storage battery in time and reduce the aging speed. The invention further provides a vehicle comprising the vehicle storage battery aging control system.
In one aspect, the present invention provides an aging control system for a vehicle storage battery, where the aging control system calculates aging values of the vehicle storage battery in different states of charge by using a battery aging model, and determines whether the vehicle storage battery needs to be charged according to the aging values, and when the aging values are greater than a first aging protection threshold, outputs an instruction to perform a full-load charging on the vehicle storage battery.
Optionally, the aging control system for the vehicle battery includes:
the data extraction module is used for acquiring the current charge percentage of the vehicle storage battery and output information;
the aging analysis module is used for obtaining a current aging value of the vehicle storage battery by using the battery aging model when the current charge percentage and the output information of the vehicle storage battery meet set conditions; and
and the charging control module is used for outputting an instruction for executing one-time full-load charging on the vehicle storage battery to a charging assembly when the aging value is greater than the first aging protection threshold value.
Optionally, the aging analysis module includes:
the judging unit is used for judging whether a vehicle engine is in a working state or not, judging whether the current charge percentage of the vehicle storage battery is smaller than a charge aging threshold or not, and outputting an instruction for calculating the aging value when the results are yes;
the calculation unit is used for receiving the command for calculating the aging value, inputting the current charge percentage of the vehicle storage battery into the battery aging model, and outputting the calculated aging value; and
a storage unit for storing the aging value.
Optionally, the aging analysis module further includes a reset unit, configured to reset the most recent aging value stored in the storage module to zero after the vehicle storage battery is charged with full load once.
Optionally, the battery aging model obtains an aging value corresponding to the current charge percentage of the vehicle storage battery by accumulating a value of an integration function on the basis of the latest aging value, the value of the integration function changes with the current charge percentage and the output current of the vehicle storage battery, and an initial value of the aging value is zero.
Optionally, the battery aging model calculates an aging value corresponding to the current percentage of charge of the vehicle storage battery by using the following relationship:
wherein the Aging Value _ new is an Aging Value corresponding to the current charge percentage of the vehicle storage battery, the Aging Value _ old is a latest Aging Value, the delta SOC is a difference Value between the charge percentage of the battery saturation state and the current charge percentage, and KpTo represent the proportionality coefficient of the degree of influence of ageing, KIAnd t is an integral coefficient related to the current output current of the vehicle storage battery, and the time elapsed from the moment when the self-aging value is zero to the current aging value is calculated.
Optionally, the charging control module is further configured to output, to the charging component, an instruction for performing partial load charging on the vehicle storage battery once when the aging value is smaller than a second aging protection threshold, where the second aging protection threshold is smaller than the first aging protection threshold.
Optionally, the charging component is an intelligent generator or a dc converter in a vehicle to which the vehicle battery belongs.
Optionally, the vehicle storage battery is a 12V lead-acid battery.
In one aspect, the invention provides a vehicle comprising a battery and the vehicle battery aging control system.
The aging control system for the vehicle storage battery provided by the invention utilizes a battery aging model to calculate the aging value of the relevant vehicle storage battery, is beneficial to knowing the aging state of the vehicle storage battery in time, and judges whether the vehicle storage battery needs to be charged according to the aging value, wherein when the aging value is larger than a first aging protection threshold value, an instruction for executing one-time full-load charging on the vehicle storage battery is output, and the aging control system is beneficial to timely carrying out the full-load charging according to the requirement before the permanent battery performance is reduced due to the long-time non-saturated state work of the battery, so that the aging speed of the vehicle storage battery can be reduced, and the service life of the vehicle storage battery can be prolonged.
The vehicle provided by the invention comprises the storage battery and the vehicle storage battery aging control system, and the vehicle storage battery aging control system is used for calculating the aging value of the storage battery and charging the storage battery based on the aging value, so that the service life of the storage battery can be prolonged, and the vehicle storage battery aging control system is beneficial to improving the quality of the vehicle.
Drawings
Fig. 1 is a block diagram of a vehicle battery aging control system according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a vehicle battery aging control system according to an embodiment of the present invention.
Description of reference numerals:
100-a vehicle storage battery aging control system; 110-a data extraction module; 120-aging analysis module; 130-a charging control module; 121-a judgment unit; 122-a computing unit; 123-a storage unit; 124-reset unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As described in the background art, since the vehicle storage battery is in an unsaturated under-charged state for a long period of time during use, the aging speed of the battery is accelerated. This can result in increased costs to the consumer both economically and in time due to the higher cost of replacing the batteries. The aging control system for the vehicle storage battery in the embodiment of the application is provided for obtaining the aging state of the vehicle storage battery in time and reducing the aging speed in the using process of the vehicle storage battery.
Specifically, the aging control system for the vehicle storage battery in the embodiment of the application utilizes a battery aging model to calculate the aging values of the relevant vehicle storage battery in different charge states, and judges whether the vehicle storage battery needs to be charged according to the aging values, wherein when the aging values are larger than a first aging protection threshold value, an instruction for executing one-time full-load charging on the vehicle storage battery is output. Therefore, the aging value of the related vehicle storage battery under different charge states can be obtained through the aging control system of the vehicle storage battery, the influence of the charge states on the battery activity is convenient to analyze, in addition, whether the vehicle storage battery needs to be charged or not is judged according to the aging value, full-load charging is carried out in time, the adverse effect of a long-term undercharging state is avoided, the aging speed of the vehicle storage battery can be reduced, the service life is prolonged, and the purpose of preventing battery aging is achieved. The vehicle battery aging control system according to the embodiment of the present invention will be further described below.
Fig. 1 is a block diagram of a vehicle battery aging control system according to an embodiment of the present invention. Referring to fig. 1, in an embodiment, the vehicle battery aging control system 100 includes a data extraction module 110, an aging analysis module 120, and a charging control module 130, where the data extraction module 110 is configured to obtain a current charge percentage of the vehicle battery and output information; the aging analysis module 120 is configured to obtain a current aging value of the vehicle storage battery by using the battery aging model when the current charge percentage and the output information of the vehicle storage battery meet set conditions; and the charging control module 130 is configured to output an instruction to perform a full-load charging on the vehicle battery to a charging component when the aging value is greater than a first aging protection threshold.
Taking a 12V battery as an auxiliary battery applied to an automobile as an example, the data extraction module 110 may acquire information on whether the automobile is in a working state from an Engine Management System (EMS) of the automobile to which the 12V battery belongs, and may acquire output information such as an actual charge percentage and an output current of the 12V battery from a battery sensor system (EBS). Since the 12V battery is operated only when the engine of the vehicle is in an operating state, in order to improve control efficiency, it may be arranged that the calculation of the aging value is performed by the aging analysis module 120 only when the engine is in an operating state, and the calculation state may be exited when the engine stops operating.
In one embodiment, the state of charge (or the actual amount of charge, referred to as SOC) of the vehicle battery obtained by the data extraction module 110 may be expressed as a percentage, and the SOC may take a value in a range from 0 to 100%, where SOC equals 0 indicates that the battery is completely discharged, and SOC equals 100% indicates that the battery is full-rated. The data extraction module 110 may collect the real-time percentage of charge and the output information of the vehicle storage battery according to a command directly input by a user, a command sent by the aging analysis module 120, or a set time interval.
The aging analysis module 120 is connected to the data extraction module 110, and can obtain the actual SOC and the output current of the 12V battery from the data extraction module 110, and after determination, can input the actual SOC and the output current to the battery aging model, and obtain the calculated aging value.
As an example, the aging analysis module 120 may include the following functional units: the device comprises a judging unit 121, a calculating unit 122 and a storage unit 123, wherein the judging unit 121 is used for judging whether the vehicle storage battery is in a working state or not and judging whether the current charge percentage of the vehicle storage battery is smaller than a charge aging threshold or not, and when the results are yes, the judging unit 121 outputs an instruction for calculating the aging value; the calculating unit 122 is configured to receive the instruction for calculating the aging value output by the determining unit 121, input the current charge percentage of the vehicle storage battery into the battery aging model, and output the aging value calculated by the battery aging model; the storage unit 123 is configured to store the aging value calculated by the calculation unit 122. The calculated aging value is stored, so that subsequent calculation and analysis are facilitated. The charge aging threshold may be specifically determined according to the structure and output performance of the corresponding vehicle storage battery.
In one embodiment, the determining unit 121 may determine from three conditions that need to be satisfied, that is, 1) the engine state is "running" 2) the EBS battery state is "authentic" and 3) the actual SOC of the 12V battery is smaller than the charge aging threshold, to obtain information on whether to start the calculating unit 122 to calculate the aging value. The instruction to calculate the aging value may be output to the calculation unit 122 only when these three conditions are satisfied simultaneously. If any one of the conditions is not met, the calculation action of the aging value is not started, and when the updated input condition is received, the calculation action of judging whether to start the aging value is carried out. For the corresponding device, "running" means that the vehicle battery is in an operating state, and "authentic" means that the battery state obtained from the EBS is accurate.
The calculation unit 122, after receiving the instruction to calculate the aging value, inputs the received current charge percentage (SOC) into the battery aging model and outputs the calculated aging value, which may be stored in the storage unit 123. The storage unit 123 may also store information such as the current time, the number of times, and the like processed by the calculation unit 122. In one embodiment, the stored aging values stored in the storage unit 123 include only the most recently calculated aging values, and when a new aging value is obtained using the current charge percentage, the new aging value is used to replace the most recently calculated aging value storage. In one embodiment, the storage unit 123 may store the aging value and the corresponding percentage charge obtained from each calculation, so as to analyze the correlation between the battery state of charge and the battery activity according to the data.
In one embodiment, the battery aging model adopted by the calculating unit 122 obtains the aging value corresponding to the current state of charge of the vehicle battery by adding an integration function value on the basis of the latest aging value, wherein the integration function value is related to the current percentage of charge and the output current of the vehicle battery, and the initial value of the aging value is zero (i.e. the last aging value referred to in the first calculation is zero).
As an example, the battery aging model may calculate an aging value corresponding to the current percent charge of the vehicle battery by the following relationship:
wherein the Aging Value _ new is an Aging Value corresponding to the current percentage of charge of the vehicle battery, the Aging Value _ old is a latest (or last) Aging Value stored in the storage unit 123, Δ SOC is a difference between the percentage of charge of the battery saturation state (e.g., 100%) and the current percentage of charge, and K ispTo represent the proportionality coefficient of the degree of influence of ageing, KIIs an integral factor (integral factor) related to the current output current of the vehicle storage battery, and t is the time which is calculated from the time when the aging value is zero to the current aging value.
The above-mentioned proportionality coefficient KpAnd integral coefficient KICan be obtained through experiments according to the output characteristics of the corresponding vehicle storage battery, and the proportionality coefficient KpAnd integral coefficient KIMay each include a plurality of different states of charge corresponding to the battery and may also be stored in the storage unit 123. For example, the proportionality coefficient KpThe SOC value can be obtained by calculating a curve of the SOC of the battery along with the change of time, and under the condition of obtaining the current charge percentage, the corresponding K can be obtained according to the curve of the SOC of the battery along with the change of timepThe larger the SOC, KpThe larger. Integral coefficient KIThe method can be obtained by calculation of a PID module, or can be obtained by directly utilizing a MAP set, namely MAP (SOC, I), of the percentage of charge SOC and the output current (I).
Therefore, by using the battery aging model, the aging value of the vehicle storage battery in the working state is calculated by successive accumulation, and the calculated aging value is increased once compared with once when the vehicle storage battery is not charged. Since the risk of permanent aging of the vehicle storage battery increases with the increase of the service life, in order to adjust the activity of the battery in time without affecting the normal use and reduce the risk of permanent aging, the vehicle storage battery aging control system 100 according to the embodiment of the present invention further includes a charging control module 130, wherein the charging control module 130 may obtain the output information of the aging analysis module 120, and output an instruction to perform one-time full-load charging on the vehicle storage battery to the charging component when the aging value calculated based on the current charge percentage is greater than the first aging protection threshold. In one embodiment, the charging control module 130 sends a higher target voltage signal to the charging assembly via a control line (e.g., CAN or LIN) when the calculated aging value is greater than the first aging protection threshold. By full-load charging, the activity of the battery can be sufficiently activated, and the aging speed of the vehicle storage battery can be greatly reduced compared with a long-time underrun state, thereby prolonging the service life of the vehicle storage battery.
The charging assembly may be an intelligent generator or a dc converter in a vehicle to which the vehicle battery belongs. The intelligent generator may charge the vehicle storage battery according to the received target generation voltage. The direct current converter can convert the high-voltage electricity into low-voltage electricity to charge the vehicle storage battery according to the received target low-voltage. For example, the charging control module 130 may send the target voltage of 12V to a dc converter, which, upon obtaining the signal, converts the high voltage into a low voltage of 12V and charges the 12V battery. The intelligent generator and the dc converter may adopt the disclosed structure.
Further, the charging control module 130 may be further configured to output, to the charging component, an instruction to perform a partial load charging on the vehicle battery when the aging value output by the aging analysis module 120 is greater than a second aging protection threshold, where the second aging protection threshold is smaller than the first aging protection threshold. The first aging protection threshold and the second aging protection threshold may be specifically set according to the structure and aging characteristics of the corresponding vehicle storage battery. When partial load charging is performed, the charging control module 130 sends a balancing target voltage signal lower than full load charging to the charging assembly through a control line, so that the charging assembly charges the vehicle storage battery with partial load, and the charging control module aims to avoid that the load percentage of the vehicle storage battery is reduced too fast to cause the aging value to be larger than a first aging protection threshold value, reduce the frequency of full load charging of the charging assembly, have small influence on other work of the charging assembly, and be beneficial to reducing the risk of permanent aging of the vehicle storage battery.
After a full-load charging is completed, the SOC at this time may be set to be 100% (or an SOC value corresponding to the full-rated capacity may be customized), and then, the aging value is calculated to determine that a logic cycle of the full-load charging is completed, in order to continuously monitor the aging state of the battery during the subsequent battery operation and continuously determine whether the vehicle storage battery needs to be charged according to the aging value, referring to fig. 1, the aging analysis module 120 of an embodiment further includes a reset unit 124, where the reset unit 124 is configured to zero the most recent aging value stored in the storage unit 123 after the vehicle storage battery is subjected to a full-load charging. After the reset, in the subsequent operation of the same vehicle battery, the data extraction module 110, the aging analysis module 120, and the charging control module 130 may be used again to obtain the aging values of the same vehicle battery in different states of charge, and determine whether the vehicle battery needs to be charged (the full-load charging and the partial-load charging may be performed) according to the aging values. In an embodiment, the reset unit 124 may also reset after waiting for the vehicle battery to operate for a period of time after completing a full-load charging, and the aging value is small during the period of time, and may not enter the calculation state. For example, when the current charge percentage of the vehicle storage battery is not less than a set value, the latest aging value in the storage unit is reset to zero, then the battery aging model is used successively to perform integral accumulation calculation of the aging value, and whether the vehicle storage battery needs to be charged is determined according to the aging value. In addition, in one embodiment, since the state of charge of the vehicle battery is provided by the battery sensor system (EBS), when the state of the battery sensor system is "untrusted" (when the EBS does not enter a stable operating state, there is a period of time when the output data is inaccurate), the latest aging value in the storage unit 123 is reset to zero, so that when the state of the battery sensor system is changed to "authentic", the aging value is determined again.
Fig. 2 is a schematic flow chart of a vehicle battery aging control system according to an embodiment of the present invention. Referring to fig. 2, taking a 12V battery as an example, the process of calculating an aging value and determining and executing charging of the vehicle battery according to the aging value by using the vehicle battery aging control system according to an embodiment of the present invention is as follows:
first, obtaining actual condition information (engine state, 12V battery, SOC, output current of 12V battery, etc.) about 12V battery provided by an engine management system and a battery sensor system may be performed by the data extraction module 110;
then, the judgment whether the condition of the battery aging integration model is satisfied may be performed by the judgment unit 121 in the aging analysis module 120;
then, after the calculation condition is met, the battery aging value is calculated, the battery aging value can be accumulated on the basis of the latest aging value to obtain the aging value of the 12V battery by the historical different SOCs, specifically, the aging value can be executed by the calculation unit 122 in the aging analysis module 120, and is stored in the storage unit 123, the data stored in the storage unit 123 can be kept all the time, and cannot be erased even after the shutdown and the power outage;
then, after the aging value of the 12V battery is judged to be greater than the first aging protection threshold, the full-load charging mode (full charge) is entered, which may be executed by the charging control module 130;
then, after the SOC of the 12V battery is fully charged by the full load power generation and the actual SOC of the 12V battery is greater than the threshold value related to the aging value reset request, the aging value is reset to 0 so as to perform the calculation next time, which may be performed by the reset unit 124;
next, when it is determined that the aging value of the 12V battery is less than the second aging protection threshold value, the partial load charging mode (part charge) may be entered and executed by the charging control module 130.
Therefore, through the process, an aging value calculation process for the aging influence of the 12V battery under different charge states can be established, the influence of the different charge states on the activity of the vehicle storage battery is fully considered in the calculation process, and the aging value is finally reflected. And the charging mode of the battery is decided according to the aging value, the activity of the battery is activated, the aging speed is reduced, the aging protection of the vehicle storage battery is realized, and the service life of the vehicle storage battery can be prolonged.
It is to be understood that the vehicle battery aging control system of the embodiment of the present invention may include a plurality of computers, hardware, devices, etc. interconnected through a communication unit such as a network, or include a single computer, hardware, device, etc. having a process of implementing the present invention. The computer may include, among other things, a Central Processing Unit (CPU), memory, and input and output components such as a keyboard, mouse, touch screen, display, and the like. The modules and units (data extraction module, aging analysis module, charging control module, judgment unit, calculation unit, storage unit, and reset unit) in the vehicle battery aging control system may be combined and implemented in one module, or any one of the modules may be split into a plurality of sub-units, or at least part of the functions of one or more of the units may be combined with at least part of the functions of other units and implemented in one module. According to an embodiment of the present invention, at least one of the units in the vehicle battery aging control system may be implemented at least partially as a hardware circuit, or may be implemented in hardware or firmware in any other reasonable manner of integrating or packaging circuits, or at least one of the units in the vehicle battery aging control system may be implemented at least partially as a program code module that, when executed by a computer of the vehicle battery aging control system, may perform the functions of the corresponding module.
The embodiment of the invention also relates to a vehicle which comprises a storage battery and the vehicle storage battery aging control system. Specifically, the vehicle may be an electric bicycle, an electric automobile, a hybrid automobile, a fuel automobile, or the like. The vehicle storage battery aging control system obtains information whether the vehicle is in a working state or not through the engine management system, and obtains information of the current charge percentage and the current output current of the vehicle storage battery through the battery sensor system.
The vehicle can adopt a storage battery as a power supply or an auxiliary power supply, and in order to obtain the aging state of the storage battery in time and reduce the aging speed, the aging value of the storage battery is calculated by the vehicle storage battery aging control system and the storage battery is charged based on the aging value, so that the service life of the storage battery can be prolonged, and the vehicle quality can be improved.
The above description is only for the purpose of describing the preferred embodiments of the present invention and is not intended to limit the scope of the claims of the present invention, and any person skilled in the art can make possible the variations and modifications of the technical solutions of the present invention using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention, and therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention belong to the protection scope of the technical solutions of the present invention.
Claims (10)
1. The aging control system for the vehicle storage battery is characterized in that the aging control system for the vehicle storage battery calculates aging values of the related vehicle storage battery under different charge states by using a battery aging model, and judges whether the vehicle storage battery needs to be charged according to the aging values, wherein when the aging values are larger than a first aging protection threshold value, an instruction for executing one-time full-load charging on the vehicle storage battery is output.
2. The vehicle battery degradation control system according to claim 1, comprising:
the data extraction module is used for acquiring the current charge percentage of the vehicle storage battery and output information;
the aging analysis module is used for obtaining a current aging value of the vehicle storage battery by using the battery aging model when the current charge percentage and the output information of the vehicle storage battery meet set conditions; and
and the charging control module is used for outputting an instruction for executing one-time full-load charging on the vehicle storage battery to a charging assembly when the aging value is greater than the first aging protection threshold value.
3. The vehicle battery degradation control system of claim 2, wherein the degradation analysis module comprises:
the judging unit is used for judging whether a vehicle engine is in a working state or not, judging whether the current charge percentage of the vehicle storage battery is smaller than a charge aging threshold or not, and outputting an instruction for calculating the aging value when the results are yes;
the calculation unit is used for receiving the command for calculating the aging value, inputting the current charge percentage of the vehicle storage battery into the battery aging model, and outputting the calculated aging value; and
a storage unit for storing the aging value.
4. The vehicle battery aging control system according to claim 3, wherein the aging analysis module further includes:
and the resetting unit is used for resetting the latest aging value stored in the storage module to zero after the vehicle storage battery is subjected to one-time full-load charging.
5. The vehicle battery aging control system according to claim 2, wherein the battery aging model obtains an aging value corresponding to the present percentage of charge of the vehicle battery by adding up a value of an integration function, which varies with the present percentage of charge and the output current of the vehicle battery, on the basis of the last aging value, the initial value of the aging value being zero.
6. The vehicle battery aging control system according to claim 5, wherein the battery aging model calculates an aging value corresponding to the current percent charge of the vehicle battery by the relationship:
wherein AgingValue _ new is an aging value corresponding to the current percentage of charge of the vehicle storage battery, AgingValue _ old is a latest aging value, Δ SOC is a difference value between the percentage of charge of the battery in a saturation state and the current percentage of charge, and KpTo represent the proportionality coefficient of the degree of influence of ageing, KIAnd t is an integral coefficient related to the current output current of the vehicle storage battery, and the time elapsed from the moment when the self-aging value is zero to the current aging value is calculated.
7. The vehicle battery aging control system according to claim 2, wherein the charging control module is further configured to output an instruction to the charging assembly to perform a partial load charging of the vehicle battery once when the aging value is less than a second aging protection threshold, wherein the second aging protection threshold is less than the first aging protection threshold.
8. The vehicle battery aging control system according to claim 2, wherein the charging component is a smart generator or a dc converter in a vehicle to which the vehicle battery belongs.
9. The vehicle battery degradation control system according to any one of claims 1 to 8, wherein the vehicle battery is a 12V lead-acid battery.
10. A vehicle characterized by comprising a battery and the vehicular battery aging control system according to any one of claims 1 to 9.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112800584A (en) * | 2020-12-30 | 2021-05-14 | 联合汽车电子有限公司 | Engine oil aging degree evaluation method and device, terminal and storage medium |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545758A (en) * | 2012-01-16 | 2012-07-04 | 北京启明精华新技术有限公司 | Automobile power controller |
| FR2971854A1 (en) * | 2011-02-21 | 2012-08-24 | Renault Sa | DEVICE FOR ESTIMATING THE AGING OF A MOTOR VEHICLE POWER BATTERY AND METHOD THEREFOR. |
| EP2631663A1 (en) * | 2012-02-22 | 2013-08-28 | Siemens Aktiengesellschaft | Method for continuously monitoring battery ageing |
| CN104749525A (en) * | 2013-12-31 | 2015-07-01 | 华为技术有限公司 | Battery aging state detection device, system and method |
| CN105305514A (en) * | 2014-06-23 | 2016-02-03 | 中兴通讯股份有限公司 | Method and device for charging battery |
| CN105552461A (en) * | 2016-02-16 | 2016-05-04 | 深圳安博检测股份有限公司 | Economical and practical portable automobile rechargeable battery discharging device |
| CN105548912A (en) * | 2016-03-03 | 2016-05-04 | 合肥国轩高科动力能源有限公司 | Battery state of charge calibration method based on battery aging characteristics |
| CN106291375A (en) * | 2016-07-28 | 2017-01-04 | 河南许继仪表有限公司 | A kind of SOC estimation method based on cell degradation and device |
| CN106965685A (en) * | 2015-10-20 | 2017-07-21 | 福特全球技术公司 | System and method for indicating cell degradation |
| CN107533110A (en) * | 2015-08-21 | 2018-01-02 | 株式会社Lg化学 | For the apparatus and method for the degree of aging for assessing secondary cell |
| CN107664751A (en) * | 2016-07-28 | 2018-02-06 | 中兴通讯股份有限公司 | The measuring method and measuring and calculating device of a kind of real-time state-of-charge of battery |
| KR20180033642A (en) * | 2016-09-26 | 2018-04-04 | 현대자동차주식회사 | System and method for battery management |
| CN108627770A (en) * | 2017-03-17 | 2018-10-09 | 半导体组件工业公司 | Method and apparatus for the health status for determining battery |
| CN109143101A (en) * | 2018-07-27 | 2019-01-04 | 重庆长安汽车股份有限公司 | A kind of automobile storage battery status monitoring warning system and method |
| CN109946623A (en) * | 2019-03-27 | 2019-06-28 | 吉林大学 | A kind of SOC estimation online method of lithium battery |
| CN110450677A (en) * | 2019-08-23 | 2019-11-15 | 哈尔滨理工大学 | A kind of energy management method of the composite energy storage electric car based on battery aging status estimation |
-
2020
- 2020-06-15 CN CN202010543916.7A patent/CN111830411B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2971854A1 (en) * | 2011-02-21 | 2012-08-24 | Renault Sa | DEVICE FOR ESTIMATING THE AGING OF A MOTOR VEHICLE POWER BATTERY AND METHOD THEREFOR. |
| CN102545758A (en) * | 2012-01-16 | 2012-07-04 | 北京启明精华新技术有限公司 | Automobile power controller |
| EP2631663A1 (en) * | 2012-02-22 | 2013-08-28 | Siemens Aktiengesellschaft | Method for continuously monitoring battery ageing |
| CN104749525A (en) * | 2013-12-31 | 2015-07-01 | 华为技术有限公司 | Battery aging state detection device, system and method |
| CN105305514A (en) * | 2014-06-23 | 2016-02-03 | 中兴通讯股份有限公司 | Method and device for charging battery |
| CN107533110A (en) * | 2015-08-21 | 2018-01-02 | 株式会社Lg化学 | For the apparatus and method for the degree of aging for assessing secondary cell |
| CN106965685A (en) * | 2015-10-20 | 2017-07-21 | 福特全球技术公司 | System and method for indicating cell degradation |
| CN105552461A (en) * | 2016-02-16 | 2016-05-04 | 深圳安博检测股份有限公司 | Economical and practical portable automobile rechargeable battery discharging device |
| CN105548912A (en) * | 2016-03-03 | 2016-05-04 | 合肥国轩高科动力能源有限公司 | Battery state of charge calibration method based on battery aging characteristics |
| CN106291375A (en) * | 2016-07-28 | 2017-01-04 | 河南许继仪表有限公司 | A kind of SOC estimation method based on cell degradation and device |
| CN107664751A (en) * | 2016-07-28 | 2018-02-06 | 中兴通讯股份有限公司 | The measuring method and measuring and calculating device of a kind of real-time state-of-charge of battery |
| KR20180033642A (en) * | 2016-09-26 | 2018-04-04 | 현대자동차주식회사 | System and method for battery management |
| CN108627770A (en) * | 2017-03-17 | 2018-10-09 | 半导体组件工业公司 | Method and apparatus for the health status for determining battery |
| CN109143101A (en) * | 2018-07-27 | 2019-01-04 | 重庆长安汽车股份有限公司 | A kind of automobile storage battery status monitoring warning system and method |
| CN109946623A (en) * | 2019-03-27 | 2019-06-28 | 吉林大学 | A kind of SOC estimation online method of lithium battery |
| CN110450677A (en) * | 2019-08-23 | 2019-11-15 | 哈尔滨理工大学 | A kind of energy management method of the composite energy storage electric car based on battery aging status estimation |
Non-Patent Citations (1)
| Title |
|---|
| 黄凯;郭永芳;李志刚;: "动力锂离子电池荷电状态估计综述", 电源技术, no. 09, 20 September 2018 (2018-09-20), pages 142 - 145 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112800584A (en) * | 2020-12-30 | 2021-05-14 | 联合汽车电子有限公司 | Engine oil aging degree evaluation method and device, terminal and storage medium |
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|---|---|
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