CN111204224A - Power battery pack fault control system and method based on automobile - Google Patents
Power battery pack fault control system and method based on automobile Download PDFInfo
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- CN111204224A CN111204224A CN202010038253.3A CN202010038253A CN111204224A CN 111204224 A CN111204224 A CN 111204224A CN 202010038253 A CN202010038253 A CN 202010038253A CN 111204224 A CN111204224 A CN 111204224A
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a power battery pack fault control system and method based on an automobile, wherein the power battery pack fault control system based on the automobile comprises: the device comprises a battery management module, a parameter acquisition module and a VCU, wherein the parameter acquisition module and the VCU are respectively electrically connected with the battery management module; the parameter acquisition module is used for periodically acquiring parameter information of the power battery pack, and acquiring N times in each period, wherein N is more than 1; the battery management module is used for analyzing and processing the parameter information of the power battery pack in each period and determining whether the power battery pack breaks down; the VCU is used for controlling and executing corresponding instructions according to the fault degree under the condition of fault; through the scheme, whether the power battery pack breaks down or not can be judged, and corresponding measures are adopted to process according to the fault degree, so that the control of the whole vehicle is more accurate and effective.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a power battery pack fault control system and method based on an automobile.
Background
At present, automobiles become transportation tools which can be lacked in the middle of daily life of people, and for the field of new energy automobiles, including pure electric automobiles, hybrid automobiles, extended range automobiles and the like, power battery packs are adopted and are in different electromagnetic environments of the whole automobile; because the information transmission of the power battery pack module can be subjected to certain electromagnetic interference under different working conditions of the whole vehicle, certain errors occur in the module information transmission, for example, certain errors occur in the voltage information transmission of the power battery pack, so that the voltage difference deviation is large, and if the voltage difference deviation is large, the whole vehicle can be controlled in an unrealistic and inaccurate control mode if the line is disconnected unrealistically.
Disclosure of Invention
The invention aims to provide a power battery pack fault control system and method based on an automobile, and aims to solve the problems that in the prior art, because the information transmission of a power battery pack module is subjected to certain electromagnetic interference under different working conditions of the whole automobile, certain errors occur in the module information transmission, for example, certain errors occur in the voltage information transmission of a power battery pack, the voltage difference deviation is large, and if the voltage difference deviation is large, the whole automobile can adopt an unreasonable and inaccurate control mode if the power battery pack is not truly disconnected.
In order to solve the technical problem, the invention provides a power battery pack fault control system based on an automobile, which comprises:
the device comprises a battery management module, a parameter acquisition module and a VCU, wherein the parameter acquisition module and the VCU are respectively electrically connected with the battery management module;
the parameter acquisition module is used for periodically acquiring parameter information of the power battery pack, and acquiring N times in each period, wherein N is more than 1;
the battery management module is used for analyzing and processing the parameter information of the power battery pack in each period and determining whether the power battery pack has a fault;
and the VCU is used for controlling and executing the corresponding instruction according to the fault degree under the condition of fault.
Optionally, the parameter information includes a voltage difference value and a temperature difference value.
Optionally, the voltage difference value is a difference between a maximum voltage value and a minimum voltage value of the individual electric cores of the power battery pack in N times of a cycle; the temperature difference value is the difference between the maximum temperature value and the minimum temperature value of the single battery cell of the power battery pack in N times of a period.
Optionally, the battery management module is configured to determine the degree of the fault when the power battery pack fails, and send the degree of the fault to the VCU.
Optionally, the battery management module is configured to: for the same period, if the N voltage difference values are all equal to a first preset voltage threshold value and the N temperature difference values are all equal to a first preset temperature threshold value, determining that the power battery pack has a fault and determining that the fault degree is light; if the N voltage difference values are all equal to a second preset voltage threshold value and the N temperature difference values are all equal to a second preset temperature threshold value, the power battery pack is considered to be in fault, and the fault degree is determined to be a middle level; if the N voltage difference values are all equal to a third preset voltage threshold value and the N temperature difference values are all equal to a third preset temperature threshold value, the power battery pack is considered to be in fault, and the fault degree is determined to be in a heavy level; the first preset voltage threshold is smaller than the second preset voltage threshold, and the second preset voltage threshold is smaller than the third preset voltage threshold; the first preset temperature threshold is smaller than the second preset temperature threshold, and the second preset temperature threshold is smaller than the third preset temperature threshold.
Optionally, the battery management module is configured to: for the same period, if X voltage difference values in the N voltage difference values are equal to a first preset voltage threshold value, a second preset voltage threshold value or a third preset voltage threshold value, Y voltage difference values in the N voltage difference values are normal voltage values, X is less than Y, and N temperature difference values are all equal to normal temperature values, transmission interference of the power battery pack is considered to occur, and the fault degree is determined to be a slight level.
Optionally, the VCU is configured to control to perform an alarm prompt when the fault degree is a light-level fault; when the fault degree is a middle-level fault, controlling to limit the maximum output power; and when the fault degree is in a heavy level, controlling to cut off the high voltage of the whole vehicle.
Optionally, the VCU is configured to control to perform alarm prompting when the fault degree is a light-level fault, and control to limit the maximum output power to be reduced to a first preset output power value; when the fault degree is a middle-level fault, controlling to limit the maximum output power to be reduced to a second preset output power value; the first preset output power value is larger than the second preset output power value; and when the fault degree is in a heavy level, controlling to cut off the high voltage of the whole vehicle.
Optionally, the VCU is configured to clear the data of the previous cycle in the next determination cycle when the fault degree is a minor fault.
In order to solve the technical problem, the invention also provides a power battery pack fault control method based on the automobile, which comprises the following steps:
parameter information of the power battery pack is collected periodically, and the parameter information is collected for N times in each period, wherein N is more than 1;
analyzing and processing the parameter information of the power battery pack in each period to determine whether the power battery pack has a fault;
and when the fault occurs, controlling to execute the corresponding command according to the fault degree.
Advantageous effects
The invention provides a power battery pack fault control system and method based on an automobile, wherein the power battery pack fault control system based on the automobile comprises:
the device comprises a battery management module, a parameter acquisition module and a VCU, wherein the parameter acquisition module and the VCU are respectively electrically connected with the battery management module;
the parameter acquisition module is used for periodically acquiring parameter information of the power battery pack, and acquiring N times in each period, wherein N is more than 1;
the battery management module is used for analyzing and processing the parameter information of the power battery pack in each period and determining whether the power battery pack breaks down; .
The VCU is used for controlling and executing corresponding instructions according to the fault degree under the condition of fault;
through the scheme, whether the power battery pack breaks down or not can be judged, and corresponding measures are adopted to process according to the fault degree, so that the control of the whole vehicle is more accurate and effective.
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 other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a power battery pack fault control system based on an automobile according to an embodiment of the present invention;
fig. 2 is a flowchart of a power battery pack fault control method based on an automobile according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The present embodiment will provide a fault control system for a power battery pack based on an automobile, referring to fig. 1, the fault control system for a power battery pack based on an automobile comprising:
the device comprises a battery management module, a parameter acquisition module and a VCU, wherein the parameter acquisition module and the VCU are respectively electrically connected with the battery management module;
the parameter acquisition module is used for periodically acquiring parameter information of the power battery pack, and acquiring N times in each period, wherein N is more than 1; for example, 2S is a period, N is 4, and for the first period, parameter information of the power battery pack is collected at 0.5S, 1S, 1.5S, and 2S;
the battery management module is used for analyzing and processing the parameter information of the power battery pack in each period and determining whether the power battery pack breaks down; the BATTERY management module may be implemented using a BMS (BATTERY management system MANAGEMENT SYSTEM);
the VCU is used for controlling and executing corresponding instructions according to the fault degree under the condition of fault;
if no fault occurs, no processing is carried out;
through the scheme, whether the power battery pack breaks down or not can be judged, and corresponding measures are adopted to process according to the fault degree, so that the control of the whole vehicle is more accurate and effective.
Optionally, the parameter information comprises a voltage difference value and a temperature difference value.
Optionally, the voltage difference is △ V between the maximum and minimum voltage values of the battery cells of the power battery pack in N times of the cycle, and the temperature difference is △ t between the maximum and minimum temperature values of the battery cells of the power battery pack in N times of the cycle, for example, 2S is one cycle, N is 4, and for the first cycle, the collected voltage difference and temperature difference are as shown in table 1 below:
TABLE 1
| Time of day | 0.5S | 1S | 1.5S | 2S |
| Difference in voltage | △V1 | △V2 | △V3 | △V4 |
| Difference in temperature | △T1 | △T2 | △T3 | △T4 |
Optionally, the battery management module is configured to determine a failure degree for a case where the power battery pack fails, and send the failure degree to the VCU.
Optionally, the battery management module is configured to:
for the same period, if the N voltage difference values are all equal to a first preset voltage threshold (for example, 300mv), and the N temperature difference values are all equal to a first preset temperature threshold (for example, 8 ℃), determining that the power battery pack has a fault, and determining that the fault degree is light;
if the N voltage difference values are all equal to a second preset voltage threshold (such as 400mv), and the N temperature difference values are all equal to a second preset temperature threshold (such as 10 ℃), determining that the power battery pack has a fault, and determining that the fault degree is a middle level;
if the N voltage difference values are all equal to a third preset voltage threshold (such as 500mv), and the N temperature difference values are all equal to a third preset temperature threshold (such as 15 ℃), determining that the power battery pack has a fault, and determining that the fault degree is a heavy level;
the first preset voltage threshold is smaller than a second preset voltage threshold, and the second preset voltage threshold is smaller than a third preset voltage threshold; the first preset temperature threshold is smaller than the second preset temperature threshold, and the second preset temperature threshold is smaller than the third preset temperature threshold.
Optionally, the battery management module is configured to: for the same period, if X voltage difference values in the N voltage difference values are equal to a first preset voltage threshold value, a second preset voltage threshold value or a third preset voltage threshold value, Y voltage difference values in the N voltage difference values are normal voltage values, X is less than Y, and N temperature difference values are all equal to normal temperature values, transmission interference of the power battery pack is considered to occur, and the fault degree is determined to be a slight level.
For example, if a certain module has a large differential pressure and abnormal temperature change, the temperature change exists all the time within a period of 2s, and the change is real fault information; if the primary pressure difference is larger, but the temperature is normal, and the 2S period range does not repeatedly appear, the transmission error is determined.
Optionally, the VCU is configured to control to perform alarm prompting when the fault degree is a light-level fault; when the fault degree is a middle-level fault, controlling to limit the maximum output power; and when the fault degree is heavy grade, controlling to cut off the high voltage of the whole vehicle.
Optionally, the VCU is configured to control to perform alarm prompting when the fault degree is a light-level fault, and control to limit the maximum output power to be reduced to a first preset output power value, for example, limit the maximum output power to become half; when the fault degree is a medium-level fault, controlling to limit the maximum output power to be reduced to a second preset output power value, for example, limiting the maximum output power to be 20% of the original maximum output power; the first preset output power value is larger than the second preset output power value; and when the fault degree is heavy grade, controlling to cut off the high voltage of the whole vehicle.
Optionally, the VCU is configured to clear the data of the previous cycle in the next determination cycle when the fault degree is a minor fault. If the transmission error is detected, the data is cleared and not compared, and if the data is not cleared, the comparison is large and always exists, so that the control is burdensome.
And judging the next period according to different threshold values of the battery state information.
Through the implementation of this embodiment, avoided the uncontrollable influence that electromagnetic interference brought, made the control of whole car more accurate, effective.
Example two
The embodiment provides a power battery pack fault control method based on an automobile, and with reference to fig. 2, the method includes:
s201, parameter information of the power battery pack is collected periodically, and N times of collection are carried out in each period, wherein N is larger than 1; for example, 2S is a period, N is 4, and for the first period, parameter information of the power battery pack is collected at 0.5S, 1S, 1.5S, and 2S;
s202, analyzing and processing parameter information of the power battery pack in each period, and determining whether the power battery pack breaks down;
and S203, controlling and executing the corresponding command according to the fault degree when the fault occurs.
If no fault occurs, no processing is carried out;
through the scheme, whether the power battery pack breaks down or not can be judged, and corresponding measures are adopted to process according to the fault degree, so that the control of the whole vehicle is more accurate and effective.
Optionally, the parameter information comprises a voltage difference value and a temperature difference value.
Optionally, the voltage difference is △ V between the maximum and minimum voltage values of the battery cells of the power battery pack in N times of the cycle, and the temperature difference is △ t between the maximum and minimum temperature values of the battery cells of the power battery pack in N times of the cycle, for example, 2S is one cycle, N is 4, and for the first cycle, the collected voltage difference and temperature difference are as shown in table 2 below:
TABLE 2
| Time of day | 0.5S | 1S | 1.5S | 2S |
| Difference in voltage | △V1 | △V2 | △V3 | △V4 |
| Difference in temperature | △T1 | △T2 | △T3 | △T4 |
Optionally, the step S202 of analyzing and processing the parameter information of the power battery pack in each cycle, and determining whether the power battery pack is faulty includes: and analyzing and processing the parameter information of the power battery pack in each period, and determining the fault degree of the power battery pack under the condition of fault.
Alternatively, the step S202 of determining whether the power battery pack is failed comprises: for the same period, if the N voltage difference values are all equal to a first preset voltage threshold (for example, 300mv), and the N temperature difference values are all equal to a first preset temperature threshold (for example, 8 ℃), determining that the power battery pack has a fault, and determining that the fault degree is light;
if the N voltage difference values are all equal to a second preset voltage threshold (such as 400mv), and the N temperature difference values are all equal to a second preset temperature threshold (such as 10 ℃), determining that the power battery pack has a fault, and determining that the fault degree is a middle level;
if the N voltage difference values are all equal to a third preset voltage threshold (such as 500mv), and the N temperature difference values are all equal to a third preset temperature threshold (such as 15 ℃), determining that the power battery pack has a fault, and determining that the fault degree is a heavy level;
the first preset voltage threshold is smaller than a second preset voltage threshold, and the second preset voltage threshold is smaller than a third preset voltage threshold; the first preset temperature threshold is smaller than the second preset temperature threshold, and the second preset temperature threshold is smaller than the third preset temperature threshold.
Alternatively, the step S202 of determining whether the power battery pack is failed comprises: for the same period, if X voltage difference values in the N voltage difference values are equal to a first preset voltage threshold value, a second preset voltage threshold value or a third preset voltage threshold value, Y voltage difference values in the N voltage difference values are normal voltage values, X is less than Y, and N temperature difference values are all equal to normal temperature values, transmission interference of the power battery pack is considered to occur, and the fault degree is determined to be a slight level.
For example, if a certain module has a large differential pressure and abnormal temperature change, the temperature change exists all the time within a period of 2s, and the change is real fault information; if the primary pressure difference is larger, but the temperature is normal, and the 2S period range does not repeatedly appear, the transmission error is determined.
Optionally, in S203, in the case of a fault, according to the fault degree, controlling to execute the corresponding instruction includes: when the fault degree is a light fault, controlling to give an alarm; when the fault degree is a middle-level fault, controlling to limit the maximum output power; and when the fault degree is heavy grade, controlling to cut off the high voltage of the whole vehicle.
Optionally, in S203, in the case of a fault, according to the fault degree, controlling to execute the corresponding instruction includes: when the fault degree is a light fault, controlling to give an alarm and limiting the maximum output power to be reduced to a first preset output power value, for example, limiting the maximum output power to be half; when the fault degree is a medium-level fault, controlling to limit the maximum output power to be reduced to a second preset output power value, for example, limiting the maximum output power to be 20% of the original maximum output power; the first preset output power value is larger than the second preset output power value; and when the fault degree is heavy grade, controlling to cut off the high voltage of the whole vehicle.
Optionally, in S203, in the case of a fault, according to the fault degree, controlling to execute the corresponding instruction includes: and when the fault degree is a slight fault, clearing the data of the previous period in the next judgment period. If the transmission error is detected, the data is cleared and not compared, and if the data is not cleared, the comparison is large and always exists, so that the control is burdensome.
And judging the next period according to different threshold values of the battery state information.
Through the implementation of this embodiment, avoided the uncontrollable influence that electromagnetic interference brought, made the control of whole car more accurate, effective.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (10)
1. A power battery pack fault control system based on an automobile is characterized by comprising:
the device comprises a battery management module, a parameter acquisition module and a VCU, wherein the parameter acquisition module and the VCU are respectively electrically connected with the battery management module;
the parameter acquisition module is used for periodically acquiring parameter information of the power battery pack, and acquiring N times in each period, wherein N is more than 1;
the battery management module is used for analyzing and processing the parameter information of the power battery pack in each period and determining whether the power battery pack has a fault;
and the VCU is used for controlling and executing the corresponding instruction according to the fault degree under the condition of fault.
2. The vehicle-based power pack fault control system of claim 1, wherein the parameter information includes a voltage difference value and a temperature difference value.
3. The automobile-based power battery pack fault control system of claim 2, wherein the voltage difference value is a difference between a maximum value and a minimum value of voltages of the battery cells of the power battery pack in N times of a cycle; the temperature difference value is the difference between the maximum temperature value and the minimum temperature value of the single battery cell of the power battery pack in N times of a period.
4. The vehicle-based power battery pack fault control system according to claim 2 or 3, wherein the battery management module is configured to determine the fault degree for a fault condition of the power battery pack and send the fault degree to the VCU.
5. The vehicle-based power battery pack fault control system of claim 4, wherein the battery management module is configured to: for the same period, if the N voltage difference values are all equal to a first preset voltage threshold value and the N temperature difference values are all equal to a first preset temperature threshold value, determining that the power battery pack has a fault and determining that the fault degree is light; if the N voltage difference values are all equal to a second preset voltage threshold value and the N temperature difference values are all equal to a second preset temperature threshold value, the power battery pack is considered to be in fault, and the fault degree is determined to be a middle level; if the N voltage difference values are all equal to a third preset voltage threshold value and the N temperature difference values are all equal to a third preset temperature threshold value, the power battery pack is considered to be in fault, and the fault degree is determined to be in a heavy level; the first preset voltage threshold is smaller than the second preset voltage threshold, and the second preset voltage threshold is smaller than the third preset voltage threshold; the first preset temperature threshold is smaller than the second preset temperature threshold, and the second preset temperature threshold is smaller than the third preset temperature threshold.
6. The vehicle-based power battery pack fault control system of claim 4, wherein the battery management module is configured to: for the same period, if X voltage difference values in the N voltage difference values are equal to a first preset voltage threshold value, a second preset voltage threshold value or a third preset voltage threshold value, Y voltage difference values in the N voltage difference values are normal voltage values, X is less than Y, and N temperature difference values are all equal to normal temperature values, transmission interference of the power battery pack is considered to occur, and the fault degree is determined to be a slight level.
7. The vehicle-based power battery pack fault control system of claim 5, wherein the VCU is configured to control an alarm prompt when the fault level is a light fault; when the fault degree is a middle-level fault, controlling to limit the maximum output power; and when the fault degree is in a heavy level, controlling to cut off the high voltage of the whole vehicle.
8. The automobile-based power battery pack fault control system of claim 5, wherein the VCU is configured to control an alarm to prompt and control a limitation of the maximum output power to be reduced to a first preset output power value when the fault degree is a light fault; when the fault degree is a middle-level fault, controlling to limit the maximum output power to be reduced to a second preset output power value; the first preset output power value is larger than the second preset output power value; and when the fault degree is in a heavy level, controlling to cut off the high voltage of the whole vehicle.
9. The vehicle-based power battery pack fault control system of claim 6, wherein the VCU is configured to clear data of a previous cycle in a next judgment cycle when the fault degree is a minor fault.
10. A power battery pack fault control method based on an automobile is characterized by comprising the following steps:
parameter information of the power battery pack is collected periodically, and the parameter information is collected for N times in each period, wherein N is more than 1;
analyzing and processing the parameter information of the power battery pack in each period to determine whether the power battery pack has a fault;
and when the fault occurs, controlling to execute the corresponding command according to the fault degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038253.3A CN111204224A (en) | 2020-01-14 | 2020-01-14 | Power battery pack fault control system and method based on automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010038253.3A CN111204224A (en) | 2020-01-14 | 2020-01-14 | Power battery pack fault control system and method based on automobile |
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| CN111204224A true CN111204224A (en) | 2020-05-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796217A (en) * | 2020-07-28 | 2020-10-20 | 宁夏中科天际防雷股份有限公司 | Intelligent detection device, system and method for disconnection card |
| CN113009371A (en) * | 2021-03-16 | 2021-06-22 | 安徽江淮汽车集团股份有限公司 | Battery pack voltage disorder fault judgment method, device, equipment and storage medium |
| CN113162174A (en) * | 2021-04-23 | 2021-07-23 | 四川航电微能源有限公司 | Battery management method of lead-carbon battery |
| CN115728662A (en) * | 2022-12-06 | 2023-03-03 | 北汽福田汽车股份有限公司 | Battery fault risk judgment method and device and vehicle |
| CN115931155A (en) * | 2022-11-28 | 2023-04-07 | 浙江凌骁能源科技有限公司 | Battery temperature rise fault diagnosis method and device, computer equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025173A (en) * | 1999-07-02 | 2001-01-26 | Denso Corp | Set-battery fault determination apparatus and method |
| CN103312009A (en) * | 2013-07-05 | 2013-09-18 | 中国南方电网有限责任公司调峰调频发电公司 | Method for managing battery modules of energy storage power station of power grid |
| CN104656023A (en) * | 2013-11-22 | 2015-05-27 | 广州汽车集团股份有限公司 | Method and system for evaluating battery monomer consistency |
| CN104842814A (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Double-line redundancy safety high-voltage equipment of light bus and control system and method thereof |
| CN105759780A (en) * | 2015-11-30 | 2016-07-13 | 北京新能源汽车股份有限公司 | Electric automobile, and communication fault processing method and apparatus thereof |
| CN106654403A (en) * | 2015-10-30 | 2017-05-10 | 北汽福田汽车股份有限公司 | Method for preventing battery failure false alarm and apparatus thereof |
-
2020
- 2020-01-14 CN CN202010038253.3A patent/CN111204224A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025173A (en) * | 1999-07-02 | 2001-01-26 | Denso Corp | Set-battery fault determination apparatus and method |
| CN103312009A (en) * | 2013-07-05 | 2013-09-18 | 中国南方电网有限责任公司调峰调频发电公司 | Method for managing battery modules of energy storage power station of power grid |
| CN104656023A (en) * | 2013-11-22 | 2015-05-27 | 广州汽车集团股份有限公司 | Method and system for evaluating battery monomer consistency |
| CN104842814A (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Double-line redundancy safety high-voltage equipment of light bus and control system and method thereof |
| CN106654403A (en) * | 2015-10-30 | 2017-05-10 | 北汽福田汽车股份有限公司 | Method for preventing battery failure false alarm and apparatus thereof |
| CN105759780A (en) * | 2015-11-30 | 2016-07-13 | 北京新能源汽车股份有限公司 | Electric automobile, and communication fault processing method and apparatus thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796217A (en) * | 2020-07-28 | 2020-10-20 | 宁夏中科天际防雷股份有限公司 | Intelligent detection device, system and method for disconnection card |
| CN111796217B (en) * | 2020-07-28 | 2023-05-16 | 中科天际科技股份有限公司 | Intelligent detection device, system and method for broken connector |
| CN113009371A (en) * | 2021-03-16 | 2021-06-22 | 安徽江淮汽车集团股份有限公司 | Battery pack voltage disorder fault judgment method, device, equipment and storage medium |
| CN113009371B (en) * | 2021-03-16 | 2022-03-04 | 安徽江淮汽车集团股份有限公司 | Battery pack voltage disorder fault judgment method, device, equipment and storage medium |
| CN113162174A (en) * | 2021-04-23 | 2021-07-23 | 四川航电微能源有限公司 | Battery management method of lead-carbon battery |
| CN115931155A (en) * | 2022-11-28 | 2023-04-07 | 浙江凌骁能源科技有限公司 | Battery temperature rise fault diagnosis method and device, computer equipment and storage medium |
| CN115728662A (en) * | 2022-12-06 | 2023-03-03 | 北汽福田汽车股份有限公司 | Battery fault risk judgment method and device and vehicle |
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