CN112172526A - Maintenance structure and method for fuel cell hydrogen energy automobile power battery system - Google Patents
Maintenance structure and method for fuel cell hydrogen energy automobile power battery system Download PDFInfo
- Publication number
- CN112172526A CN112172526A CN202010995659.0A CN202010995659A CN112172526A CN 112172526 A CN112172526 A CN 112172526A CN 202010995659 A CN202010995659 A CN 202010995659A CN 112172526 A CN112172526 A CN 112172526A
- Authority
- CN
- China
- Prior art keywords
- power battery
- unit
- charging
- whole vehicle
- fault diagnosis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- 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]
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a maintenance structure and a method for a power battery system of a fuel battery hydrogen energy automobile, wherein the maintenance structure comprises the following steps: the system comprises a power grid, a charging and discharging cabinet, a whole vehicle component unit, a maintenance unit and a fault diagnosis unit; the whole vehicle part unit comprises a power battery management system, a whole vehicle controller and a whole vehicle power distribution unit, wherein the power battery management system comprises a power battery, and the whole vehicle power distribution unit comprises a power distribution unit controller; the maintenance unit comprises a first DBC file import unit, a maintenance strategy import unit, an upper computer and a first data sampling unit; the fault diagnosis unit comprises a second data sampling unit, a fault diagnosis expert system, a second DBC file importing unit, an intelligent diagnosis data importing unit and a fault diagnosis report generating unit. The invention improves the safety of the whole vehicle and can prolong the cycle life of the power battery, thereby improving the service life of the new energy vehicle and greatly creating economic benefits.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a maintenance structure and a maintenance method for a power battery system of a fuel cell hydrogen energy automobile.
Background
With the increasing environmental awareness of people, new energy automobiles include: the development speed of pure electric vehicles, hybrid electric vehicles and hydrogen fuel vehicles is faster and faster, and the holding amount of the pure electric vehicles, the hybrid electric vehicles and the hydrogen fuel vehicles is larger and larger. With the large investment of vehicles, how to ensure the safety of the whole vehicle and ensure the health and safety of the power battery of the vehicle is one of the facing problems, wherein a proper maintenance framework is found, and an optimal optimization strategy is formulated at the same time, which is one of the solutions of the current problems.
Meanwhile, in the running process of the new energy vehicle, due to the fact that the power battery fails, the whole vehicle fails frequently, and serious accidents of fire and explosion happen occasionally. After a power battery runs for a long time, the problems of poor battery consistency, capacity attenuation, increase of cell internal resistance and larger SOC estimation can occur, if the power battery is not maintained, the battery consistency is increasingly poor, the cell internal resistance and the capacity attenuation are increasingly serious, the cycle life of a battery system is directly short, and meanwhile, the heat productivity of the battery system is increased, and a thermal runaway accident can be caused seriously.
Therefore, it is necessary to design and develop a maintenance architecture of the battery system, and formulate a reasonable fault diagnosis and maintenance strategy to perform periodic maintenance on the battery system, so as to ensure the health of the battery system, i.e., ensure the health of the entire vehicle.
Disclosure of Invention
In order to solve the problems, the invention provides a maintenance structure and a maintenance method for a power battery system of a fuel cell hydrogen energy automobile.
A fuel cell hydrogen energy automobile power battery system maintenance structure comprises: the system comprises a power grid, a charging and discharging cabinet, a whole vehicle component unit, a maintenance unit and a fault diagnosis unit;
the whole vehicle part unit comprises a power battery management system, a whole vehicle controller and a whole vehicle power distribution unit, wherein the power battery management system comprises a power battery, and the whole vehicle power distribution unit comprises a power distribution unit controller;
the maintenance unit comprises a first DBC file import unit, a maintenance strategy import unit, an upper computer and a first data sampling unit;
the fault diagnosis unit comprises a second data sampling unit, a fault diagnosis expert system, a second DBC file import unit, an intelligent diagnosis data import unit and a fault diagnosis report generation unit;
the power grid is electrically connected with the charging and discharging cabinet through a high-voltage power line;
in the whole vehicle component unit, a whole vehicle power distribution unit, a charge-discharge cabinet and a battery management system are electrically connected through high-voltage power lines;
the charging and discharging cabinet is electrically connected with the maintenance unit through a CAN bus;
the whole vehicle controller is electrically connected with the charging and discharging cabinet, the whole vehicle power distribution unit, the fault diagnosis unit and the battery management system through the CAN bus;
the battery management system is electrically connected with the fault diagnosis unit through a CAN bus;
further, when the charging and discharging cabinet charges the power battery, the power grid provides three-phase alternating current for the charging and discharging cabinet; when the power battery discharges to the charge-discharge cabinet, the power grid absorbs the electric quantity fed back by the charge-discharge cabinet;
furthermore, the charging and discharging cabinet is controlled by the upper computer and is used for realizing charging and discharging operations of the power battery, receiving and transmitting message data information between the upper computer and the whole vehicle through the CAN bus and realizing control and monitoring of the power battery by the upper computer;
furthermore, the whole vehicle component unit is connected to the whole vehicle through a CAN bus;
further, the fault diagnosis unit is connected to the entire vehicle CAN network through the second data sampling unit, and is used for diagnosing faults of the power battery by processing fault diagnosis information of the power battery received by the second data sampling unit and generating a fault diagnosis report through the fault diagnosis report generating unit.
A fuel cell hydrogen energy automobile power battery system maintenance method is realized based on the fuel cell hydrogen energy automobile power battery system maintenance structure, and comprises the following steps:
s1, fault diagnosis;
s11, waking up the vehicle controller, the battery management system and the power distribution unit controller at low voltage on the vehicle;
s12, accessing a fault diagnosis unit, importing a DBC file and a diagnosis database corresponding to the vehicle type of the whole vehicle into a fault diagnosis expert system in the fault diagnosis unit, and evaluating the health condition of the power battery;
s13, generating a fault diagnosis report to finish fault diagnosis;
s2, maintaining the power battery;
s21, judging whether the power battery is a relevant fault, if so, maintaining the power battery by using a charging and discharging cabinet, and executing the step S22; if not, entering other processing flows;
s22, connecting an external high-voltage wire harness and a communication wire harness, and connecting the charging and discharging cabinet, the whole vehicle component unit and the upper computer;
s23, importing DBC files and maintenance strategies to an upper computer;
s24, the upper computer controls the charging and discharging cabinet to issue a high-voltage instruction to a CAN bus of the whole vehicle, and the charging and discharging cabinet is connected with the power battery;
s25, the charging and discharging cabinet discharges the power battery at a certain discharging rate until the voltage of the power battery reaches a first set voltage value;
s26, standing for setting a time value;
s27, the charging and discharging cabinet performs charging operation on the power battery at a certain charging rate until the voltage of the power battery reaches a second set voltage value;
s28, standing again for setting a time value;
s29, returning to the step S25 until the SOC estimation error of the power battery is smaller than the set error value and the single voltage difference of the power battery is smaller than a third set voltage value;
s3, judging the maintenance condition of the power battery;
if the conditions in the step S29 are met, the connection between the charging and discharging cabinet and the power battery is disconnected through the upper computer, and the system maintenance operation is completed; and if not, performing manual intervention analysis.
Further, in step S25, the discharge rate is 0.33C, and the first set voltage value is the minimum protection voltage of the power battery;
further, in step S27, the charging rate is 0.33C, and the second setting voltage value is the highest protection voltage of the power battery;
further, in steps S26 and S28, the set time value is 10 min;
further, in step S29, when the condition that "the SOC estimation error of the power battery is smaller than the set error value and the cell voltage difference of the power battery is smaller than the third set voltage value" is not satisfied, the process returns to step S25, and the steps S25 to S29 are re-executed, wherein the operation is repeated at most 2 times; the setting error value is 5%, and the third setting voltage value is 50 mV.
The technical scheme provided by the invention has the beneficial effects that: the safety of the whole vehicle is improved, the cycle life of the power battery can be prolonged, the service life of the new energy vehicle is prolonged, and economic benefits are greatly created.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a maintenance structure of a power battery system of a fuel cell hydrogen-powered automobile according to an embodiment of the invention;
fig. 2 is a flow chart of a method for maintaining a power battery system of a fuel cell hydrogen-powered vehicle according to an embodiment of the invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a maintenance structure and a maintenance method for a power battery system of a fuel cell hydrogen energy automobile.
Referring to fig. 1, fig. 1 is a schematic diagram of a maintenance structure of a power battery system of a fuel cell hydrogen energy vehicle according to an embodiment of the present invention, including: the system comprises a power grid, a charging and discharging cabinet, a whole vehicle component unit, a maintenance unit and a fault diagnosis unit;
the whole vehicle part unit comprises a power battery management system, a whole vehicle controller and a whole vehicle power distribution unit, wherein the power battery management system comprises a power battery, and the whole vehicle power distribution unit comprises a power distribution unit controller;
the maintenance unit comprises a first DBC file import unit, a maintenance strategy import unit, an upper computer and a first data sampling unit;
the fault diagnosis unit comprises a second data sampling unit, a fault diagnosis expert system, a second DBC file import unit, an intelligent diagnosis data import unit and a fault diagnosis report generation unit; the fault diagnosis unit is connected to the whole vehicle CAN network through the second data sampling unit, and is used for diagnosing faults of the power battery by processing fault diagnosis information of the power battery received by the second data sampling unit and generating a fault diagnosis report through the fault diagnosis report generating unit; the fault diagnosis information includes: battery pack charging overvoltage, battery pack discharging undervoltage, charging overcurrent, discharging overcurrent, overhigh temperature, overlow temperature, temperature difference, monomer charging overvoltage, monomer discharging undervoltage, monomer voltage difference, high SOC range, low insulation impedance, high-voltage interlocking fault, overhigh water inlet temperature fault, rapid cell temperature rise fault, relay fault, BMS charging VCU communication fault, BMS internal communication fault, BMS hardware fault and SOC jump fault;
the power grid is electrically connected with the charging and discharging cabinet through a high-voltage power line; when the charging and discharging cabinet charges the power battery, the power grid provides three-phase alternating current for the charging and discharging cabinet; when the power battery discharges to the charge-discharge cabinet, the power grid absorbs the electric quantity fed back by the charge-discharge cabinet;
in the whole vehicle component unit, a whole vehicle power distribution unit, a charge-discharge cabinet and a battery management system are electrically connected through high-voltage power lines;
the charging and discharging cabinet is electrically connected with the maintenance unit through a CAN bus; the charging and discharging cabinet is controlled by a system upper computer and is used for realizing charging and discharging operations of the power battery, receiving and transmitting message data information between the upper computer and the whole vehicle through a CAN bus and realizing the control and monitoring of the upper computer on the power battery;
the whole vehicle controller is electrically connected with the charging and discharging cabinet, the whole vehicle power distribution unit, the fault diagnosis unit and the battery management system through the CAN bus;
the battery management system is electrically connected with the fault diagnosis unit through a CAN bus;
the whole vehicle component unit is connected to the whole vehicle through a CAN bus;
the CAN bus is a 485 bus;
referring to fig. 2, fig. 2 is a flow chart of a method for maintaining a power battery system of a fuel cell hydrogen vehicle according to an embodiment of the present invention,
the method comprises the following steps:
s1, fault diagnosis;
s11, waking up the vehicle controller, the battery management system and the power distribution unit controller at low voltage on the vehicle;
s12, accessing a fault diagnosis unit, importing a DBC file and a diagnosis database corresponding to the vehicle type of the whole vehicle into a fault diagnosis expert system in the fault diagnosis unit, and evaluating the health condition of the power battery; the diagnostic database is created based on existing historical data; the method comprises the steps that the health condition of the power battery is evaluated mainly in the states of battery pack initialization, upper low voltage and upper high voltage, fault information of the battery is read, whether the fault represents the service life or consistency of the battery or other electrical faults is judged, and if the fault diagnosis information is used, whether the fault is the large single pressure difference fault of the power battery and the SOC estimation is carried out;
s13, generating a fault diagnosis report to finish fault diagnosis;
s2, maintaining the power battery;
s21, judging whether the power battery is a relevant fault, if so, maintaining the power battery by using a charging and discharging cabinet, and executing the step S22; if not, entering other processing flows; the other processing flows are the inspection of the electrical aspect entering the battery pack, and the battery pack may need to be unpacked or maintained in a mode of replacing a certain electric device;
s22, connecting an external high-voltage wire harness and a communication wire harness, and connecting the charging and discharging cabinet, the whole vehicle component unit and the upper computer;
s23, importing DBC files and maintenance strategies to an upper computer;
s24, the upper computer controls the charging and discharging cabinet to issue a high-voltage instruction to a CAN bus of the whole vehicle, and the charging and discharging cabinet is connected with the power battery; namely, the upper computer controls both the high-voltage relay inside the brake battery and the high-voltage relay inside the power distribution unit to be attracted through the CAN bus;
s25, the charging and discharging cabinet discharges the power battery at a certain discharging rate until the voltage of the power battery reaches a first set voltage value; the discharge rate is 0.33C, and the first set voltage value is the lowest protection voltage of the power battery;
s26, standing for setting a time value; the set time values are all 10min
S27, the charging and discharging cabinet performs charging operation on the power battery at a certain charging rate until the voltage of the power battery reaches a second set voltage value; the charging rate is 0.33C, and the second set voltage value is the highest protection voltage of the power battery; the minimum protection voltage and the maximum protection voltage of the power battery are respectively the product of the lowest voltage and the number of strings of the power battery and the product of the highest voltage and the number of strings of the power battery, and are determined according to specific vehicle types;
s28, standing again for setting a time value;
s29, returning to the step S25 until the SOC estimation error of the power battery is smaller than the set error value and the single voltage difference of the power battery is smaller than a third set voltage value; when the condition that the SOC estimation error of the power battery is smaller than the set error value and the single voltage difference of the power battery is smaller than the third set voltage value is not met, the method returns to the step S25, and the steps S25-S29 are executed again, and the operation is repeated at most 2 times; the set error value is 5%, and the third set voltage value is 50mV
S3, judging the maintenance condition of the power battery;
if the conditions in the step S29 are met, the connection between the charging and discharging cabinet and the power battery is disconnected through the upper computer, and the system maintenance operation is completed; if not, performing manual intervention analysis; if the expected effect cannot be achieved after the operation of steps S25-S29 is repeated for 2 times, it indicates that the method cannot be used to maintain the battery, the battery may have an unrepairable problem, and may be scrapped seriously, and the specific situation requires manual intervention and analysis, such as unpacking inspection.
The invention has the beneficial effects that: the safety of the whole vehicle is improved, the cycle life of the power battery can be prolonged, the service life of the new energy vehicle is prolonged, and economic benefits are greatly created.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a fuel cell hydrogen energy automobile power battery system maintains structure which characterized in that: the method comprises the following steps: the system comprises a power grid, a charging and discharging cabinet, a whole vehicle component unit, a maintenance unit and a fault diagnosis unit;
the whole vehicle part unit comprises a power battery management system, a whole vehicle controller and a whole vehicle power distribution unit, wherein the power battery management system comprises a power battery, and the whole vehicle power distribution unit comprises a power distribution unit controller;
the maintenance unit comprises a first DBC file import unit, a maintenance strategy import unit, an upper computer and a first data sampling unit;
the fault diagnosis unit comprises a second data sampling unit, a fault diagnosis expert system, a second DBC file import unit, an intelligent diagnosis data import unit and a fault diagnosis report generation unit;
the power grid is electrically connected with the charging and discharging cabinet through a high-voltage power line;
in the whole vehicle component unit, a whole vehicle power distribution unit, a charge-discharge cabinet and a battery management system are electrically connected through high-voltage power lines;
the charging and discharging cabinet is electrically connected with the maintenance unit through a CAN bus;
the whole vehicle controller is electrically connected with the charging and discharging cabinet, the whole vehicle power distribution unit, the fault diagnosis unit and the battery management system through the CAN bus;
the battery management system is electrically connected with the fault diagnosis unit through a CAN bus.
2. The maintenance structure of a power battery system of a fuel cell hydrogen vehicle of claim 1, wherein: when the charging and discharging cabinet charges the power battery, the power grid provides three-phase alternating current for the charging and discharging cabinet; when the power battery discharges to the charge-discharge cabinet, the power grid absorbs the electric quantity fed back by the charge-discharge cabinet.
3. The maintenance structure of a power battery system of a fuel cell hydrogen vehicle of claim 1, wherein: the charging and discharging cabinet is controlled by the upper computer and is used for realizing charging and discharging operations of the power battery, receiving and transmitting message data information between the upper computer and the whole vehicle through the CAN bus and realizing control and monitoring of the power battery by the upper computer.
4. The maintenance structure of a power battery system of a fuel cell hydrogen vehicle of claim 1, wherein: and the whole vehicle component unit is connected into the whole vehicle through a CAN bus.
5. The maintenance structure of a power battery system of a fuel cell hydrogen vehicle of claim 1, wherein: the fault diagnosis unit is connected to the whole vehicle CAN network through the second data sampling unit, and is used for diagnosing faults of the power battery by processing fault diagnosis information of the power battery received by the second data sampling unit and generating a fault diagnosis report through the fault diagnosis report generating unit.
6. A fuel cell hydrogen energy automobile power battery system maintenance method is realized based on the fuel cell hydrogen energy automobile power battery system maintenance structure of any one of claims 1 to 5, and is characterized in that: the method comprises the following steps:
s1, fault diagnosis;
s11, waking up the vehicle controller, the battery management system and the power distribution unit controller at low voltage on the vehicle;
s12, accessing a fault diagnosis unit, importing a DBC file and a diagnosis database corresponding to the vehicle type of the whole vehicle into a fault diagnosis expert system in the fault diagnosis unit, and evaluating the health condition of the power battery;
s13, generating a fault diagnosis report to finish fault diagnosis;
s2, maintaining the power battery;
s21, judging whether the power battery is a relevant fault, if so, maintaining the power battery by using a charging and discharging cabinet, and executing the step S22; if not, entering other processing flows;
s22, connecting an external high-voltage wire harness and a communication wire harness, and connecting the charging and discharging cabinet, the whole vehicle component unit and the upper computer;
s23, importing DBC files and maintenance strategies to an upper computer;
s24, the upper computer controls the charging and discharging cabinet to issue a high-voltage instruction to a CAN bus of the whole vehicle, and the charging and discharging cabinet is connected with the power battery;
s25, the charging and discharging cabinet discharges the power battery at a certain discharging rate until the voltage of the power battery reaches a first set voltage value;
s26, standing for setting a time value;
s27, the charging and discharging cabinet performs charging operation on the power battery at a certain charging rate until the voltage of the power battery reaches a second set voltage value;
s28, standing again for setting a time value;
s29, returning to the step S25 until the SOC estimation error of the power battery is smaller than the set error value and the single voltage difference of the power battery is smaller than a third set voltage value;
s3, judging the maintenance condition of the power battery;
if the conditions in the step S29 are met, the connection between the charging and discharging cabinet and the power battery is disconnected through the upper computer, and the system maintenance operation is completed; and if not, performing manual intervention analysis.
7. The maintenance method of the power battery system of the fuel cell hydrogen-powered automobile according to claim 6, characterized in that: in step S25, the discharge rate is 0.33C, and the first set voltage value is the minimum protection voltage of the power battery.
8. The maintenance method of the power battery system of the fuel cell hydrogen-powered automobile according to claim 6, characterized in that: in step S27, the charging rate is 0.33C, and the second set voltage value is the maximum protection voltage of the power battery.
9. The maintenance method of the power battery system of the fuel cell hydrogen-powered automobile according to claim 6, characterized in that: in steps S26 and S28, the set time value is 10 min.
10. The maintenance method of the power battery system of the fuel cell hydrogen-powered automobile according to claim 6, characterized in that: in step S29, when the condition that "the SOC estimation error of the power battery is smaller than the set error value and the cell voltage difference of the power battery is smaller than the third set voltage value" is not satisfied, the process returns to step S25, and the steps S25 to S29 are re-executed, wherein the operation is repeated at most 2 times; the setting error value is 5%, and the third setting voltage value is 50 mV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995659.0A CN112172526A (en) | 2020-09-21 | 2020-09-21 | Maintenance structure and method for fuel cell hydrogen energy automobile power battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010995659.0A CN112172526A (en) | 2020-09-21 | 2020-09-21 | Maintenance structure and method for fuel cell hydrogen energy automobile power battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112172526A true CN112172526A (en) | 2021-01-05 |
Family
ID=73956684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010995659.0A Pending CN112172526A (en) | 2020-09-21 | 2020-09-21 | Maintenance structure and method for fuel cell hydrogen energy automobile power battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112172526A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515657A (en) * | 2008-02-22 | 2009-08-26 | 中信国安盟固利新能源科技有限公司 | Battery pack automatic maintenance device |
| WO2013021956A1 (en) * | 2011-08-05 | 2013-02-14 | シャープ株式会社 | Charging/discharging control device |
| CN105006848A (en) * | 2014-04-17 | 2015-10-28 | 中国科学院沈阳自动化研究所 | Intelligent power lithium ion battery maintenance system |
| CN105059130A (en) * | 2015-07-24 | 2015-11-18 | 中国科学院广州能源研究所 | Power battery repairing system for electric automobile |
| CN206606074U (en) * | 2017-04-13 | 2017-11-03 | 北京能高自动化技术股份有限公司 | A kind of lithium battery group charge and discharge maintenance device |
| CN107346907A (en) * | 2016-05-06 | 2017-11-14 | 宝沃汽车（中国）有限公司 | A kind of battery bag maintenance system and battery bag maintaining method |
-
2020
- 2020-09-21 CN CN202010995659.0A patent/CN112172526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515657A (en) * | 2008-02-22 | 2009-08-26 | 中信国安盟固利新能源科技有限公司 | Battery pack automatic maintenance device |
| WO2013021956A1 (en) * | 2011-08-05 | 2013-02-14 | シャープ株式会社 | Charging/discharging control device |
| CN105006848A (en) * | 2014-04-17 | 2015-10-28 | 中国科学院沈阳自动化研究所 | Intelligent power lithium ion battery maintenance system |
| CN105059130A (en) * | 2015-07-24 | 2015-11-18 | 中国科学院广州能源研究所 | Power battery repairing system for electric automobile |
| CN107346907A (en) * | 2016-05-06 | 2017-11-14 | 宝沃汽车（中国）有限公司 | A kind of battery bag maintenance system and battery bag maintaining method |
| CN206606074U (en) * | 2017-04-13 | 2017-11-03 | 北京能高自动化技术股份有限公司 | A kind of lithium battery group charge and discharge maintenance device |
Non-Patent Citations (1)
| Title |
|---|
| 贺林: "《电动汽车设计》", 31 December 2016, 合肥工业大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106505694B (en) | A kind of management system and control method of intelligent battery group | |
| CN103683428B (en) | A kind of battery management system for electric automobile and electric automobile | |
| CN102013529B (en) | Vehicle power battery pack management system integrated into electric vehicle instrument and control method thereof | |
| CN212542532U (en) | Multi-branch electrochemical energy storage system with battery core diagnosis function | |
| CN111231767A (en) | Battery charging protection system and method applied to new energy electric automobile | |
| CN112532476A (en) | BMS (battery management system) protocol simulation test system and test method for V2G electric vehicle | |
| CN110824367A (en) | Hardware-in-loop test system and method for new energy automobile battery management system | |
| CN203135572U (en) | Transformer substation DC device state monitoring system | |
| Wang et al. | Research on fault diagnosis system of electric vehicle power battery based on OBD technology | |
| CN110994562A (en) | High-voltage protection functional module in energy storage battery management system and control method | |
| CN111769542A (en) | DC power supply system for 220kV intelligent energy station | |
| CN107804176A (en) | A kind of control system and its control method based on new energy vehicle auxiliary braking | |
| CN114487860A (en) | New energy automobile driving system abnormity detection system based on sensor | |
| CN111239621A (en) | Storage battery remote boosting and capacity checking method, device, equipment and storage medium | |
| CN113067042B (en) | Energy storage device and fault prediction and diagnosis method | |
| CN113937747A (en) | Energy control system and method for direct-current networking ship hybrid laboratory | |
| CN112234940B (en) | Inverter output power abnormity early warning method considering power limit and operation efficiency | |
| CN113659701A (en) | Intelligent air compression station electric energy supply system and supply method thereof | |
| CN219915868U (en) | Storage battery effectiveness monitoring device in transformer substation direct-current system | |
| CN112172526A (en) | Maintenance structure and method for fuel cell hydrogen energy automobile power battery system | |
| CN113156209A (en) | Diagnosis method for monitoring looseness of mounting bolts of bus bar connected between modules | |
| Wang et al. | Battery management system based on AURIX multi-core architecture | |
| CN103354366A (en) | Application of floating-charge type protective lithium iron phosphate storage battery in electric power engineering DC system | |
| CN113253130A (en) | Battery simulation test system | |
| CN216355973U (en) | Energy control system of direct-current networking ship hybrid laboratory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210105 |
|
| RJ01 | Rejection of invention patent application after publication |