CN113348774B - Anti-failure deep space exploration aircraft storage battery protection method - Google Patents
Anti-failure deep space exploration aircraft storage battery protection method Download PDFInfo
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- CN113348774B CN113348774B CN201518008574.9A CN201518008574A CN113348774B CN 113348774 B CN113348774 B CN 113348774B CN 201518008574 A CN201518008574 A CN 201518008574A CN 113348774 B CN113348774 B CN 113348774B
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Abstract
The invention provides a failure-preventing deep space exploration aircraft storage battery protection method, which is based on voltage judgment and can protect a storage battery under the condition of one-way telemetering failure because the voltage of a lithium battery has a better linear relation with the capacity of the lithium battery, so that the reliability of an energy system of a deep space exploration aircraft is improved. The invention can automatically judge the state of the storage battery and implement protection under the condition of energy failure of the deep space exploration aircraft, and can correctly diagnose the failure of the storage battery by adopting a fault-tolerant method under the condition of failure of local telemetering performance, thereby achieving the purposes of reasonably protecting the storage battery and not influencing the safe power utilization of the whole device, improving the reliability of an energy system of the deep space exploration aircraft, improving the reliability of the storage battery of the deep space exploration aircraft and optimizing the energy system of the deep space exploration aircraft.
Description
Technical Field
The invention relates to the general design technology of a lunar probe power supply, in particular to a failure-preventing deep space exploration aircraft storage battery protection method.
Background
The lithium ion storage battery is selected from the deep space detector aircraft photovoltaic system, the lithium ion battery is the storage battery with the highest energy density at present, the temperature characteristic is good, the lithium ion battery can be used at the temperature of between 40 ℃ below zero and 30 ℃ below zero, and the deep space detector aircraft photovoltaic system has the advantages of high charging efficiency, small thermal conductivity effect and the like. In a deep space aircraft energy system, in order to ensure the energy safety and the use safety of a lithium ion storage battery pack and ensure the service life of the energy system, the over-discharge of the lithium ion storage battery pack is strictly forbidden.
The general method for protecting the lithium battery pack is that after the storage battery pack reaches a certain discharge depth, a discharge switch of a power subsystem is disconnected, so that the lithium battery pack is stopped from discharging outwards, and the lithium battery pack is prevented from being overdischarged. The discharge capacity of the lithium battery can be judged by using an ampere-hour meter mode, and the discharge capacity of the lithium battery can be calculated by integrating time by adopting voltage telemetering and current telemetering of a storage battery pack; this approach requires a higher sampling frequency and a larger amount of computation.
Disclosure of Invention
The invention aims to provide a failure-prevention deep space exploration aircraft storage battery protection method, which can protect a storage battery under the condition of one-way telemetering failure and improve the reliability of a deep space exploration aircraft energy system.
In order to solve the problems, the invention provides a failure-prevention deep space exploration aircraft storage battery protection method, which comprises the following steps:
collecting parameters of single voltage sampling, group voltage sampling, a discharge switch state of the lithium ion storage battery pack and bus voltage sampling of discharge regulation equipment of the lithium ion storage battery pack;
judging the capacity of the lithium ion storage battery pack according to the parameters;
and judging whether the working state of the lithium ion storage battery pack meets the peak load of the deep space exploration aircraft and the power consumption requirement of the discharge regulating equipment or not according to the capacity of the lithium ion storage battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the peak load of the deep space exploration aircraft and the power consumption requirement of the discharge regulating equipment meet the conditions or not.
Further, in the above method, controlling the peak load of the deep space probe aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space probe aircraft and the power demand of the discharge regulating device satisfy the conditions includes:
when the lithium ion storage battery pack cannot meet the peak load of the deep space detection aircraft and the power demand or critical demand of the discharge regulating equipment, the method for controlling the peak load of the deep space detection aircraft is adopted to reduce the output burden of the lithium ion storage battery pack.
Further, in the above method, when the lithium ion battery pack is formed by connecting 7 lithium ion cells in series, the determining whether the working state of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device meet the conditions includes:
when the voltage of the lithium ion battery pack is higher than 27V, it is determined that the energy source is sufficient.
Further, in the above method, judging whether the working state of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device meet the conditions, the method further includes:
and when the voltage of the lithium ion storage battery pack is lower than 25.2V, judging the energy source to alarm, and closing the peak load of the deep space exploration aircraft.
Further, in the above method, judging whether the working state of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device meet the conditions, the method further includes:
and when the voltage of the lithium ion storage battery pack is lower than 24V, determining quasi-discharge protection, sending over-discharge protection enable, and allowing to perform disconnection operation on a voltage discharge switch of the lithium ion storage battery pack.
Further, in the above method, judging whether the working state of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device meet the conditions, the method further includes:
when the voltage of the lithium ion storage battery pack is lower than 21V, software overdischarge protection is executed, a discharge switch of the lithium ion storage battery pack is disconnected, and the lithium ion storage battery pack is forced not to output electric energy any more.
Further, in the above method, judging whether the working state of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device meet the conditions, the method further includes:
when the software over-discharge protection is not successfully executed, and the voltage of the lithium ion storage battery pack is lower than 17V, the hardware over-discharge protection circuit automatically turns off the discharge switch of the lithium ion storage battery pack.
Compared with the prior art, the voltage of the lithium battery has a better linear relation with the capacity of the lithium battery, so that the storage battery protection method provided by the invention is based on voltage judgment, can protect the storage battery under the condition of one-way telemetering failure, and improves the reliability of the energy system of the deep space exploration aircraft. The invention can automatically judge the state of the storage battery and implement protection under the condition of energy failure of the deep space exploration aircraft, and can correctly diagnose the failure of the storage battery by adopting a fault-tolerant method under the condition of failure of local telemetering performance, thereby achieving the purposes of reasonably protecting the storage battery and not influencing the safe power utilization of the whole device, improving the reliability of an energy system of the deep space exploration aircraft, improving the reliability of the storage battery of the deep space exploration aircraft and optimizing the energy system of the deep space exploration aircraft.
Drawings
FIG. 1 is a schematic diagram of a fail-safe deep space probe aircraft battery protection method in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of the effect of temperature on battery discharge voltage and discharge capacity in accordance with an embodiment of the present invention;
FIG. 3 is a diagram illustrating various stages of battery protection according to an embodiment of the present invention;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the invention provides a method for protecting a battery of a deep space exploration aircraft, which comprises the following steps:
step S1, collecting parameters of a monomer voltage sample 1, a group voltage sample 2, a discharge switch state 3 and a bus voltage sample 4 of the lithium ion storage battery pack 10;
step S2, judging the capacity 5 of the lithium ion storage battery pack according to the parameters;
and step S3, judging whether the working state 6 of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power consumption requirement of the discharge regulating equipment according to the capacity 5 of the lithium ion battery pack, and controlling the peak load 8 of the deep space exploration aircraft and the discharge switching state 7 of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power consumption requirement of the discharge regulating equipment meet the conditions. Specifically, the invention can adopt system software to sample the parameters of the lithium ion storage battery pack according to a certain period, and judge the capacity condition of the lithium ion storage battery pack according to the voltage of the lithium ion storage battery pack, and the voltage of the lithium ion storage battery pack has a good linear relation with the discharge depth of the lithium ion storage battery pack, especially under the condition that the discharge depth is lower than 90 percent. The battery pack discharge capacity can be estimated from the voltage value of the lithium ion battery pack. Because the corresponding group voltage-depth of discharge curves of the storage battery pack are different at different temperatures, the working temperature range of the storage battery pack needs to be considered, and a proper voltage criterion is selected in the temperature range. In addition, since the storage battery pack generally comprises a plurality of sections of monomers, the voltage misjudgment of the storage battery pack caused by the monomer failure needs to be considered, and therefore, a misjudgment prevention link needs to be added in the design of the protection voltage of the storage battery pack. Because the deep space aircraft software obtains the storage battery pack voltage through the output of the telemetering circuit, in order to prevent the telemetering parameter loss caused by the telemetering circuit failure or the cable failure, multiple judgments are designed, under the condition that a certain condition is met, the telemetering circuit failure is judged, the failure parameter is discarded, and other related parameters are used for continuing the storage battery pack protection.
Preferably, step S3, controlling the peak load of the deep space probe aircraft and the discharge switching state of the lithium ion battery pack according to whether the peak load of the deep space probe aircraft and the power demand of the discharge regulating device meet the conditions includes:
when the lithium ion storage battery pack cannot meet the peak load of the deep space exploration aircraft and the power demand or critical demand of the discharge regulating equipment, the output load of the lithium ion storage battery pack is reduced by adopting a method for controlling the peak load of the deep space exploration aircraft, and the energy configuration of the whole device is optimized.
Preferably, when the lithium ion battery pack is formed by connecting 7 lithium ion cells in series, step S3, determining whether the working state of the lithium ion battery pack meets the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space exploration aircraft and the discharge on-off state of the lithium ion battery pack according to whether the peak load of the deep space exploration aircraft and the power demand of the discharge regulating device meet the conditions, includes:
when the voltage of the lithium ion battery pack is higher than 27V, it is determined that the energy source is sufficient.
Preferably, step S3, determining whether the operating state of the lithium ion battery pack meets the peak load of the deep space probe aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space probe aircraft and the discharge on-off state of the lithium ion battery pack according to whether the peak load of the deep space probe aircraft and the power demand of the discharge regulating device meet the conditions, further includes:
and when the voltage of the lithium ion storage battery pack is lower than 25.2V, judging the energy source to alarm, and closing the peak load of the deep space exploration aircraft.
Preferably, step S3, determining whether the operating state of the lithium ion battery pack meets the peak load of the deep space probe aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space probe aircraft and the discharge on-off state of the lithium ion battery pack according to whether the peak load of the deep space probe aircraft and the power demand of the discharge regulating device meet the conditions, further includes:
and when the voltage of the lithium ion storage battery pack is lower than 24V, determining quasi-discharge protection, and sending over-discharge protection enable by the system at the moment to allow the voltage discharge switch of the lithium ion storage battery pack to be disconnected.
Preferably, step S3, determining whether the operating state of the lithium ion battery pack meets the peak load of the deep space probe aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space probe aircraft and the discharge on-off state of the lithium ion battery pack according to whether the peak load of the deep space probe aircraft and the power demand of the discharge regulating device meet the conditions, further includes:
when the voltage of the lithium ion storage battery pack is lower than 21V, system software sends an instruction, executes software over-discharge protection, and disconnects a discharge switch of the lithium ion storage battery pack to force the lithium ion storage battery pack not to output electric energy any more.
Preferably, step S3, determining whether the operating state of the lithium ion battery pack meets the peak load of the deep space probe aircraft and the power demand of the discharge regulating device according to the capacity of the lithium ion battery pack, and controlling the peak load of the deep space probe aircraft and the discharge on-off state of the lithium ion battery pack according to whether the peak load of the deep space probe aircraft and the power demand of the discharge regulating device meet the conditions, further includes:
when the software over-discharge protection is not successfully executed, and the voltage of the lithium ion storage battery pack is lower than 17V, the hardware over-discharge protection circuit automatically turns off the discharge switch of the lithium ion storage battery pack.
In detail, fig. 1 illustrates a design of a storage battery protection system, and an upper computer collects parameters of single voltage sampling, group voltage sampling, a storage battery discharge switch state and a bus voltage sampling of a lithium ion storage battery pack, so as to judge the working state of the lithium ion storage battery pack. The upper computer judges whether the working state of the lithium ion storage battery pack meets the power consumption requirement of the whole device, and when the lithium ion storage battery pack cannot meet the power consumption requirement or the critical requirement of the whole device, the method for controlling the load of the whole device is adopted to reduce the output load of the storage battery, and the energy configuration of the whole device is optimized.
Fig. 2 illustrates that the corresponding relationship between the discharge depth and the voltage of the lithium ion battery pack is different at different temperatures, and particularly, in the case that the discharge depth of the lithium ion battery pack is large, the rate of the voltage of the battery pack which decreases with the decrease of the capacity is greatly different according to the temperature, so that the working temperature of the battery pack needs to be considered when the protection voltage of the lithium ion battery pack is selected. When the working temperature range of the lithium ion storage battery pack is changed greatly, the discharging depth-voltage curve corresponding to lower temperature is selected, so that the working safety of the lithium ion storage battery pack can be ensured. Meanwhile, as can be seen from fig. 2, the depth of discharge of the lithium ion battery pack and the voltage thereof have a good linear relationship in a large range, and the depth of discharge can be determined according to the voltage value of the lithium ion battery pack.
Fig. 3 illustrates the protection strategy for different capacities of the battery. Because the voltage and the depth of discharge of the lithium ion storage battery pack have a good linear relationship, the depth of discharge can be estimated according to the voltage sampling, and different energy strategies are adopted. In the invention, taking a lithium ion storage battery pack formed by connecting 7 sections of lithium ion monomers in series as an example, when the voltage of the lithium ion storage battery pack is higher than 27V, the energy is judged to be sufficient; when the voltage of the lithium ion storage battery pack is lower than 25.2V, judging that the energy source alarms, and closing the peak load of the deep space exploration aircraft; when the voltage of the lithium ion storage battery pack is lower than 24V, judging quasi-discharge protection, and at the moment, sending over-discharge protection enable by a system to allow a discharge switch of the voltage of the lithium ion storage battery pack to be disconnected; when the voltage of the lithium ion storage battery pack is lower than 21V, system software sends an instruction to disconnect a storage battery discharge switch, so that the lithium ion storage battery pack is forced not to output electric energy any more; if the software over-discharge protection is not successfully executed, the hardware over-discharge protection circuit automatically switches off the discharge switch of the lithium ion storage battery pack when the voltage of the lithium ion storage battery pack is lower than 17V.
In the process, firstly, the consistency of the single bodies of the lithium battery pack is judged, the group voltage-sigma single body voltage is judged, and when the group voltage-sigma single body voltage is less than 0.1, all the single bodies in the battery pack are considered to be balanced, and no single body fails; when it is greater than 0.1, it is considered that a cell failure or a telemetry failure occurs in the battery pack. And secondly, judging the voltage of the lithium ion storage battery pack and the voltage of each monomer respectively. And when the consistency of the single battery pack meets the requirement, but the single voltage is less than 0.1V, the single voltage is considered to be telemetered and invalid, subsequent judgment is carried out according to the voltage of the battery pack, and the judgment criterion is shown in figure 3. And when the consistency of the monomers of the storage battery meets the requirement, but the monomer voltage is less than 0.1V, judging that the monomer telemetering fails, rejecting the monomer telemetering, and judging other 6 sections of monomer voltages to perform subsequent judgment. And when the consistency of the storage battery monomer does not meet the requirement, and the voltage of the storage battery and the voltage of one storage battery monomer are both smaller than 1, judging the voltage telemetering fault of the storage battery, and the electrical performance fault of one storage battery monomer or the telemetering fault of the monomer, and then adopting a mode of simultaneously judging the voltages of two storage battery monomers to carry out subsequent energy judgment. When the consistency of the storage battery monomer does not meet the requirement, the voltage of two monomers is less than 1, and the group voltage is greater than 1, the performance failure of one monomer of the storage battery monomer is judged, and the telemetering failure of one monomer is carried out, so that the group voltage under the condition of the failure of the one monomer is subjected to subsequent judgment.
In conclusion, because the voltage of the lithium battery has a better linear relation with the capacity of the lithium battery, the storage battery protection method provided by the invention is based on voltage judgment, and can protect the storage battery under the condition of one-way telemetering failure, so that the reliability of the energy system of the deep space exploration aircraft is improved. The invention can automatically judge the state of the storage battery and implement protection under the condition of energy failure of the deep space exploration aircraft, and can correctly diagnose the failure of the storage battery by adopting a fault-tolerant method under the condition of failure of local telemetering performance, thereby achieving the purposes of reasonably protecting the storage battery and not influencing the safe power utilization of the whole device, improving the reliability of an energy system of the deep space exploration aircraft, improving the reliability of the storage battery of the deep space exploration aircraft and optimizing the energy system of the deep space exploration aircraft.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 present invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (1)
1. An anti-failure deep space exploration aircraft storage battery protection method is characterized by comprising the following steps:
collecting parameters of single voltage sampling, group voltage sampling, a discharge switch state of the lithium ion storage battery pack and bus voltage sampling of discharge regulation equipment of the lithium ion storage battery pack;
judging the capacity of the lithium ion storage battery pack according to the parameters;
judging whether the working state of the lithium ion storage battery pack meets the peak load of the deep space detection aircraft and the power consumption requirement of the discharge regulating equipment or not according to the capacity of the lithium ion storage battery pack, and controlling the peak load of the deep space detection aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the peak load of the deep space detection aircraft and the power consumption requirement of the discharge regulating equipment meet the conditions or not;
controlling the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the power demand of the peak load of the deep space exploration aircraft and the discharge regulating equipment meets the condition or not, wherein the method comprises the following steps:
when the lithium ion storage battery pack cannot meet the peak load of the deep space detection aircraft and the power demand or critical demand of the discharge regulating equipment, the output burden of the lithium ion storage battery pack is reduced by adopting a method for controlling the peak load of the deep space detection aircraft;
when the lithium ion storage battery pack is formed by connecting 7 lithium ion monomers in series, whether the working state of the lithium ion storage battery pack meets the peak load of the deep space exploration aircraft and the power consumption requirement of the discharge regulating equipment is judged according to the capacity of the lithium ion storage battery pack, and whether the peak load of the deep space exploration aircraft and the power consumption requirement of the discharge regulating equipment meet the conditions or not is controlled, wherein the method comprises the following steps:
when the voltage of the lithium ion storage battery pack is higher than 27V, judging that the energy is sufficient;
judging whether the working state of the lithium ion storage battery pack meets the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment according to the capacity of the lithium ion storage battery pack, and controlling the states of the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment meet the conditions or not, and the method further comprises the following steps:
when the voltage of the lithium ion storage battery pack is lower than 25.2V, judging that the energy source alarms, and closing the peak load of the deep space exploration aircraft;
judging whether the working state of the lithium ion storage battery pack meets the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment according to the capacity of the lithium ion storage battery pack, and controlling the states of the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment meet the conditions or not, and the method further comprises the following steps:
when the voltage of the lithium ion storage battery pack is lower than 24V, determining quasi-discharge protection, sending over-discharge protection enable, and allowing to perform disconnection operation on a voltage discharge switch of the lithium ion storage battery pack;
judging whether the working state of the lithium ion storage battery pack meets the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment according to the capacity of the lithium ion storage battery pack, and controlling the states of the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment meet the conditions or not, and the method further comprises the following steps:
when the voltage of the lithium ion storage battery pack is lower than 21V, executing software overdischarge protection, disconnecting a discharge switch of the lithium ion storage battery pack, and forcing the lithium ion storage battery pack not to output electric energy any more;
judging whether the working state of the lithium ion storage battery pack meets the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment according to the capacity of the lithium ion storage battery pack, and controlling the states of the peak load of the deep space exploration aircraft and the discharge switching state of the lithium ion storage battery pack according to whether the power consumption requirements of the peak load of the deep space exploration aircraft and the discharge regulating equipment meet the conditions or not, and the method further comprises the following steps:
when the software over-discharge protection is not successfully executed, and the voltage of the lithium ion storage battery pack is lower than 17V, the hardware over-discharge protection circuit automatically turns off the discharge switch of the lithium ion storage battery pack.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416411A (en) * | 2020-04-16 | 2020-07-14 | 上海空间电源研究所 | Temperature self-adaptive over-discharge alarm control method for high-voltage lithium ion battery |
| CN112255560A (en) * | 2020-10-19 | 2021-01-22 | 奇瑞商用车（安徽）有限公司 | Battery core health degree prediction method |
| CN113759946A (en) * | 2021-08-30 | 2021-12-07 | 上海卫星工程研究所 | Deep space exploration energy safety hierarchical management method and system |
-
2015
- 2015-12-07 CN CN201518008574.9A patent/CN113348774B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416411A (en) * | 2020-04-16 | 2020-07-14 | 上海空间电源研究所 | Temperature self-adaptive over-discharge alarm control method for high-voltage lithium ion battery |
| CN112255560A (en) * | 2020-10-19 | 2021-01-22 | 奇瑞商用车（安徽）有限公司 | Battery core health degree prediction method |
| CN112255560B (en) * | 2020-10-19 | 2024-05-10 | 奇瑞商用车（安徽）有限公司 | Battery cell health degree prediction method |
| CN113759946A (en) * | 2021-08-30 | 2021-12-07 | 上海卫星工程研究所 | Deep space exploration energy safety hierarchical management method and system |
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