CN107745645B - Detection and maintenance method of power battery system - Google Patents
Detection and maintenance method of power battery system Download PDFInfo
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- CN107745645B CN107745645B CN201710900743.8A CN201710900743A CN107745645B CN 107745645 B CN107745645 B CN 107745645B CN 201710900743 A CN201710900743 A CN 201710900743A CN 107745645 B CN107745645 B CN 107745645B
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- power battery
- battery
- management system
- electric quantity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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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
-
- 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
- B60L2210/00—Converter types
- B60L2210/30—AC to DC converters
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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
- 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
Abstract
The invention relates to the field of vehicles, in particular to the field of electric vehicles, and provides a detection and maintenance method of a power battery system, aiming at the problems that the failure rate of a whole vehicle power battery of an electric vehicle is relatively high, the power battery cannot be effectively protected in the process of storing electric quantity, the capacity attenuation of a battery pack is greatly increased and the like in the prior art. After the power-on initialization, the battery management system carries out self-checking, collects the real-time states of each power battery module and the single battery cell, sends the real-time states to an upper computer of the battery management system to monitor the fault information and the electric quantity information of the power battery, and judges whether the battery is charged or discharged or is directly put in storage according to the electric quantity information of the power battery. The invention can effectively reduce the potential safety hazard of the power battery pack in the transportation process and the prolonged assembly time caused by the failure of the power battery pack, and reduce the capacity loss caused in the storage process, thereby effectively reducing the failure rate and the capacity loss of the power battery pack, greatly improving the utilization efficiency of the power battery pack and ensuring the transportation safety.
Description
Technical Field
The present invention relates to the field of vehicles, and more particularly to the field of electric vehicles.
Background
With the progress and development of society, people pay more and more attention to the problem of environmental pollution and the problem of reduction of non-renewable energy, so that the use of new energy sources with energy conservation and environmental protection is also promoted more and more. In order to protect the ecological environment, reduce the use of non-renewable resources and increase the use of new energy, electric vehicles are produced. The electric vehicle changes the traditional energy supply form, does not use non-renewable resources such as diesel oil, gasoline and the like for energy supply, turns to the use of electric energy supply which is cleaner and more environment-friendly, makes great contribution to environmental protection and resource conservation, and is a great step in energy innovation and environmental protection for human beings. At present, electric vehicles are more and more popular because of the efficient use of energy.
However, due to the limited technical conditions of the existing batteries, the development of electric vehicles encounters a bottleneck, and the vehicle powered by electric energy is still slightly inferior to the vehicle powered by traditional energy sources in the aspect of endurance. In the prior art, the failure rate of the whole vehicle power battery of the electric vehicle is relatively high, so that the time for assembling the whole vehicle power battery is wasted, the power battery cannot be effectively protected in the process of storing electric quantity, and the capacity attenuation of a battery pack is greatly increased.
The power battery is a core component of the electric vehicle for storing energy, and the energy storage capacity of the power battery directly determines the cruising ability of the electric vehicle. The invention provides a detection and maintenance method of a power battery system, which can effectively reduce the potential safety hazard of a power battery pack in the transportation process and the prolonged assembly time caused by the fault of the power battery pack, and reduce the capacity loss caused in the storage process, thereby effectively reducing the fault rate and the capacity loss of the power battery pack, greatly improving the utilization efficiency of the power battery pack, and ensuring the transportation safety.
Disclosure of Invention
The invention aims to solve the technical problem of detection and maintenance of a power battery system.
In order to solve the technical problems, improve the utilization efficiency of the power battery, prolong the service life of the power battery, reduce the capacity loss caused in the storage process, and effectively reduce the potential safety hazard of the power battery pack in the transportation process and the prolonged assembly time caused by the fault of the power battery pack, the invention provides a detection and maintenance method of a power battery system.
The invention is realized by the following technical scheme:
specifically, after power-on initialization, the battery management system performs self-checking to detect whether a fault exists in the system, and the detection content includes: insulation resistance, voltage difference, temperature, etc. The battery management system is arranged in the power battery, can acquire the real-time states of each power battery module and the single battery core, sends the real-time states to an upper computer of the battery management system, and monitors the fault information and the electric quantity information of the power battery. And if the faults exist, reporting the faults to an upper computer of the battery management system, and then checking the faults. And after troubleshooting is finished, powering on again for initialization. If the system is normal, the charging gun can be inserted, and the battery management system is ready to be connected with the charging pile in a handshaking mode.
Furthermore, after the charging gun is inserted, the battery management system and the charging pile are connected in a handshaking mode, if the connection in the handshaking mode fails, the situation that a fault still exists is indicated, and troubleshooting is needed. And if the handshaking connection is successful, acquiring the electric quantity information of the battery by an upper computer of the battery management system, and judging whether the measured battery is charged, discharged or directly put in storage according to the residual electric quantity in the battery.
Further, if the residual capacity is greater than 30% of the full charge capacity and less than 50% of the full charge capacity, the measured battery can be directly stored in a warehouse, if the residual capacity is greater than 50% of the full charge capacity, the measured battery is discharged, and if the residual capacity is less than 30% of the full charge capacity, the measured battery is charged.
Specifically, if the battery to be measured needs to discharge, loading and energy consumption can be carried out as soon as possible, and after the electric quantity and the whole vehicle are detected, the electric quantity and the whole vehicle can enter a finished product garage simultaneously, so that the transportation is convenient.
In particular, if the measured battery needs to be charged, it can be done in two ways. The first method is to charge the battery through a vehicle-mounted charger, a charging socket and an alternating current charging pile, and the second method is to charge the battery through the charging socket and the direct current charging pile.
Further, after the charging or discharging is finished, the information of the residual electric quantity is reported to an upper computer of the battery management system again, and if the residual electric quantity is more than 30% of the full-charge state and less than 50% of the full-charge state, the battery can be put into a warehouse.
According to the invention, whether the power battery has a fault or not is judged through the self-checking of the battery management system and the handshake operation of the battery management system and the charging pile, and whether the power battery can be safely put in storage or not is judged. In the invention, the battery management system is arranged in the power battery pack and is used for acquiring the real-time states of each power battery module and the single battery cell and monitoring the fault information and the electric quantity information of the power battery by sending the states to the upper computer in real time.
By adopting the technical scheme, the detection and maintenance method of the power battery system has the following beneficial effects:
1) according to the invention, through fault detection, potential safety hazards of the power battery pack in the transportation process and prolonged assembly time due to faults of the power battery pack can be effectively reduced, and the fault rate of the power battery pack is effectively reduced;
2) through maintaining the battery, the capacity loss caused in the storage process is reduced, the utilization efficiency of the power battery pack is greatly improved, and the transportation safety is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 illustrates a method for testing and maintaining a power battery system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a power battery system testing and maintenance module according to an embodiment of the present invention;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. Based on the embodiments of the present invention, those skilled in the art can easily understand the embodiments without any creative effort. All other embodiments obtained are within the scope of protection of the present invention.
An embodiment of the present invention provides a detection and maintenance method for a power battery system, and as shown in fig. 1, the method includes:
s101, power-on initialization.
S102, after power-on initialization, the battery management system carries out self-checking, whether faults exist in the system is detected, and the detection content comprises the following steps: insulation resistance, voltage difference, temperature, etc. Judging whether the battery has faults or not according to whether the obtained numerical value is in a normal range or not
And S103, if the fault exists, reporting the fault to an upper computer of the battery management system, and displaying the fault by the upper computer.
And S104, troubleshooting the fault by the staff, and powering on again for initialization after troubleshooting is finished.
And S105, if the system is normal, a charging gun can be inserted, and the battery management system is ready to be connected with the charging pile in a handshaking mode.
S106, after the charging gun is inserted, the battery management system is connected with the charging pile in a handshaking mode, and if the battery management system is not connected with the charging pile in the handshaking mode, the battery management system still has faults in the battery system and needs to be subjected to fault troubleshooting. After troubleshooting is finished, power-on initialization is carried out again.
And S107, if the handshake is successful, acquiring the residual electric quantity information of the battery by an upper computer of the battery management system, and judging whether the measured battery is charged, discharged or directly put in storage according to the residual electric quantity information in the battery.
And S108, if the residual electric quantity is more than 30% of the full electric quantity and less than 50% of the full electric quantity, the measured battery can be directly and safely put in storage.
S109, if the residual electric quantity is larger than 50% of the full electric quantity, the measured battery is subjected to discharging operation.
And S110, if the residual electric quantity is less than 30% of the full electric quantity, indicating that the tested battery should be charged.
Specifically, if the battery to be tested needs to be discharged, the battery can be loaded and the energy is consumed as soon as possible, and after the electric quantity and the whole vehicle are detected, the battery and the whole vehicle can enter a finished product garage simultaneously, so that the transportation is convenient.
In particular, if the measured battery needs to be charged, it can be done in two ways. The first method is to charge the battery through a vehicle-mounted charger, a charging socket and an alternating current charging pile, and the second method is to charge the battery through the charging socket and the direct current charging pile.
And S111, after the charging or discharging is finished, reporting the residual electric quantity information to an upper computer of the battery management system again, and if the residual electric quantity is more than 30% and less than 50% of the full charge, the battery can be safely stored in a warehouse.
One possible embodiment of the present invention provides a modular structure for power battery system detection and maintenance. Specifically, as shown in fig. 2, the module structure includes:
100. and the battery management system upper computer is used for receiving the real-time states of each power battery module and the single battery cell and monitoring the fault information and the electric quantity information of the power battery.
200. And the battery management system of the power battery is used for acquiring the real-time states of each power battery module and each single battery cell and sending the states to the upper computer in real time.
301. And the auxiliary storage battery is used for supplying power to a battery management system of the power battery.
302. And the direct current electric pile is used for charging the power battery.
303. And the vehicle-mounted charger is used for converting the alternating current into the direct current.
304. And the alternating-current charging pile is used for charging the power battery.
Specifically, the battery management system is installed in the power battery, the battery management system collects real-time states of each power battery module and a single battery cell in the power battery system, and an upper computer of the battery management system monitors fault information and electric quantity information of the power battery according to the received real-time states. And if the fault is found, troubleshooting the fault. If the residual electric quantity of the power battery is less than 30% of that of the fully charged power battery, the power battery needs to be charged through a direct current charging pile or an alternating current charging pile and a vehicle-mounted charger.
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 (5)
1. A method of testing and maintaining a power battery system, the method comprising:
electrifying and initializing, and after electrifying, starting a battery management system in the power battery to work;
the battery management system carries out self-checking to detect whether a fault exists in the power battery system, acquires the real-time state of each power battery module and the single battery cell by the battery management system, and sends the real-time state to an upper computer of the battery management system to acquire the fault information of the power battery;
after the charging gun is inserted, if the handshake is unsuccessful, the power battery is proved to have a fault, the fault is uploaded to an upper computer of a battery management system, and then the corresponding fault is checked;
after the charging gun is inserted, if the battery management system and the charging pile are successfully handshake, the battery management system acquires the real-time states of each power battery module and each single battery cell, and sends the real-time states to an upper computer of the battery management system, and the upper computer detects the residual electric quantity information of the battery;
if the residual capacity of the power battery is greater than 30% of the full capacity and less than 50% of the full capacity, the measured power battery can be safely stored in a warehouse;
if the residual electric quantity of the power battery is more than 50% of the full electric quantity, the tested power battery cannot be stored in the warehouse for a long time, the vehicle needs to be loaded as soon as possible and consumes the electric quantity, and after the electric quantity and the finished vehicle are detected, the power battery and the finished vehicle can enter a finished product garage simultaneously;
and if the residual electric quantity of the power battery is less than 30% of the full electric quantity, the power battery pack needs to be charged through a charging pile.
2. The detection and maintenance method of the power battery system according to claim 1, wherein when the battery management system performs self-checking, if a power battery is found to have a fault, the fault is uploaded to an upper computer of the battery management system, and then the corresponding fault is checked.
3. The method for detecting and maintaining the power battery system according to claim 1 or 2, wherein the detection content during the self-test of the battery management system comprises: insulation resistance, voltage difference and temperature, and if the measured values are not in the normal range, the battery has a fault.
4. The method for detecting and maintaining the power battery system according to claim 1, wherein the charging of the power battery pack through the charging pile comprises: and charging the power battery pack through the vehicle-mounted charger, the charging socket and the alternating-current charging pile.
5. The method for detecting and maintaining the power battery system according to claim 1, wherein the charging of the power battery pack through the charging pile further comprises: and charging the power battery pack through the charging socket and the direct current charging pile.
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| CN201710900743.8A CN107745645B (en) | 2017-09-28 | 2017-09-28 | Detection and maintenance method of power battery system |
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| CN201710900743.8A CN107745645B (en) | 2017-09-28 | 2017-09-28 | Detection and maintenance method of power battery system |
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| CN107745645B true CN107745645B (en) | 2021-01-29 |
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| CN112783140B (en) * | 2020-12-30 | 2022-05-10 | 广州橙行智动汽车科技有限公司 | System initialization method and device and vehicle |
| CN114655078B (en) * | 2022-04-12 | 2023-12-15 | 东软睿驰汽车技术（沈阳）有限公司 | Method and device for determining endurance mileage and electronic equipment |
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| JP2014090578A (en) * | 2012-10-30 | 2014-05-15 | Toyota Motor Corp | Power supply device for vehicle |
| CN105122537A (en) * | 2013-02-12 | 2015-12-02 | 约翰逊控制技术公司 | Vehicle battery monitoring system |
| CN205417232U (en) * | 2016-03-18 | 2016-08-03 | 蔚来汽车有限公司 | Electric automobile and battery package that is used for electric automobile |
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| US8314587B2 (en) * | 2009-10-09 | 2012-11-20 | Alcatel Lucent | Method and apparatus of stored energy management in battery powered vehicles |
| US20130015814A1 (en) * | 2011-07-13 | 2013-01-17 | Tesla Motors, Inc. | Charge Disruption Monitoring and Notification System |
| CN109649171A (en) * | 2011-07-26 | 2019-04-19 | 睿能创意公司 | For subscribing device, the method and article of electrical energy storage at the collection, charging and dispenser for subscribing electrical energy storage |
| CN205292584U (en) * | 2015-05-29 | 2016-06-08 | 谢子聪 | Power supply controlling means of electronic passenger car of polytypic |
| CN105703425A (en) * | 2016-03-01 | 2016-06-22 | 上海航盛实业有限公司 | Battery management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014090578A (en) * | 2012-10-30 | 2014-05-15 | Toyota Motor Corp | Power supply device for vehicle |
| CN105122537A (en) * | 2013-02-12 | 2015-12-02 | 约翰逊控制技术公司 | Vehicle battery monitoring system |
| CN205417232U (en) * | 2016-03-18 | 2016-08-03 | 蔚来汽车有限公司 | Electric automobile and battery package that is used for electric automobile |
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