CN116691444A - Fault judging method, device and equipment of vehicle power supply system - Google Patents
Fault judging method, device and equipment of vehicle power supply system Download PDFInfo
- Publication number
- CN116691444A CN116691444A CN202310714955.2A CN202310714955A CN116691444A CN 116691444 A CN116691444 A CN 116691444A CN 202310714955 A CN202310714955 A CN 202310714955A CN 116691444 A CN116691444 A CN 116691444A
- Authority
- CN
- China
- Prior art keywords
- storage battery
- battery
- power
- charging
- threshold
- 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
- 238000000034 method Methods 0.000 title claims abstract description 49
- 230000036541 health Effects 0.000 claims abstract description 74
- 230000001502 supplementing effect Effects 0.000 claims abstract description 20
- 230000032683 aging Effects 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 9
- 230000002950 deficient Effects 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 7
- 238000004904 shortening Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 7
- 230000018109 developmental process Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000007958 sleep Effects 0.000 description 4
- 230000003862 health status Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004171 remote diagnosis Methods 0.000 description 1
- 230000004617 sleep duration Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- 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
- 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
- B60L58/16—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]
-
- 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
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The application discloses a fault judging method, a device and equipment of a vehicle power supplementing system, which belong to the technical field of batteries, wherein the power supplementing system comprises a storage battery, and the method comprises the following steps: acquiring the charge quantity and the corresponding charge ampere time of the storage battery in M times of charging, wherein M is an integer greater than 1; if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold value, determining a first accumulated charging ampere hour of the storage battery according to the charging ampere hours of the M times of charging; obtaining a first health state value of the storage battery based on the first accumulated charging ampere time and a first electric quantity threshold value; and if the first health state value is smaller than the first health state threshold value, judging that the storage battery is aged. The application solves the technical problem of shortening the development period of the whole vehicle.
Description
Technical Field
The application belongs to the technical field of batteries, and particularly relates to a fault judging method, device and equipment of a vehicle power supply system.
Background
The power supplementing system provides power for the vehicle and comprises a storage battery and a power battery. During vehicle travel, the electric make-up system is capable of providing electric power to drive the vehicle. In addition, the power supplementing system can provide power for the vehicle so that the vehicle-mounted equipment of the vehicle can work normally.
The aging phenomenon of the storage battery in the electricity supplementing system of the new energy automobile is frequent, and the hardware distribution of the electrical system is complex and has extremely strong interactivity, so that the complexity of the hardware of the automobile can be increased by introducing the new electricity supplementing system device, and the development period of the whole automobile can be prolonged. Therefore, shortening the development cycle of the whole vehicle is a technical problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a fault judging method, device and equipment for a vehicle power supply system, which solve the technical problem of shortening the development period of the whole vehicle.
In a first aspect, an embodiment of the present application provides a fault determining method for a vehicle power supply system, where the power supply system includes a storage battery, and the method includes: acquiring the charge quantity and the corresponding charge ampere time of the storage battery in M times of charging, wherein M is an integer greater than 1; if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold value, determining a first accumulated charging ampere time of the storage battery according to the charging ampere time of the M times of charging; obtaining a first health state value of the storage battery based on the first accumulated charging ampere hour and the first electric quantity threshold value; and if the first health state value is smaller than a first health state threshold value, judging that the storage battery is aged.
With reference to the first aspect of the present application, in some embodiments, after the obtaining the first state of health value of the battery, the method further includes: and updating the capacity of the storage battery based on the first health state value.
With reference to the first aspect of the present application, in some embodiments, the method further includes: under the condition that the vehicle is in a power-up state, acquiring a multi-dimensional state parameter of the storage battery, wherein the state parameter is used for representing the current working state of the storage battery; and judging whether the storage battery is aged or not based on the multidimensional state parameters of the storage battery.
With reference to the first aspect of the present application, in some embodiments, the state parameters include a battery power, a battery temperature, a second accumulated charging time and a charging current minimum value, and the determining, based on the multi-dimensional state parameters of the storage battery, whether the storage battery is aged includes: if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions and are all larger than the preset duration time threshold, judging that the storage battery is aged; the preset threshold condition means that the battery power is in a preset power range, the battery temperature is greater than a preset temperature threshold, the second accumulated charging ampere time is less than a preset ampere time threshold, and the charging current minimum value is less than a preset current threshold.
With reference to the first aspect of the present application, in some embodiments, the state parameters include a battery power, a charging current, and a battery temperature, and the determining whether the battery is aged based on the multi-dimensional state parameters of the battery further includes: if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions and are all larger than the preset duration time threshold, judging that the storage battery is aged; the preset threshold condition means that the battery power is smaller than a second power threshold, the charging current is smaller than a preset current threshold, and the battery temperature is larger than a preset temperature threshold.
With reference to the first aspect of the present application, in some embodiments, the method further includes: under the condition that the vehicle is in a non-high-voltage state, acquiring multi-dimensional state parameters of the storage battery, wherein the state parameters comprise battery electric quantity and discharge voltage, and the state parameters are used for representing the current working state of the storage battery; if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions and are all larger than the preset duration time threshold, judging that the storage battery is aged; the preset threshold condition means that the battery power is greater than a second power threshold and the discharge voltage is less than a preset voltage threshold.
With reference to the first aspect of the present application, in some embodiments, the method further includes: controlling the vehicle to self-learn a storage battery state under the condition that the vehicle is in a power-up state; acquiring the internal resistance of the storage battery based on the self-learned storage battery state in response to the number of times the vehicle self-learns the storage battery state exceeding a first time threshold; obtaining a second state of health value of the battery based on the internal resistance of the battery; and if the second health state value is smaller than a second health state threshold value, judging that the storage battery is aged.
With reference to the first aspect of the present application, in some embodiments, the power supply system further includes a power battery, and the method further includes: when the vehicle is not in a dormant state, responding to the power battery to receive a power supplementing signal, and supplementing electricity to the storage battery by the power battery, wherein the power supplementing signal is a signal sent out when the battery electricity quantity of the storage battery is lower than a third electricity quantity threshold value; recording the time interval of continuous power supply of the power battery to the storage battery for two times; recording abnormal power-up time in response to the time interval being smaller than a power-up time length threshold; and under the condition that the number of abnormal power supply times is larger than a second number threshold, judging that the power battery is deficient.
In a second aspect, an embodiment of the present application provides a fault determining apparatus for a vehicle power supply system, where the power supply system includes a storage battery, and the apparatus includes: the acquisition unit is used for acquiring the charge quantity of the storage battery in M times of charging and the corresponding charging time, wherein M is an integer greater than 1; the time-setting determining unit is used for determining a first accumulated charging time of the storage battery according to the charging time of the M times of charging if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold; the health determining unit is used for obtaining a first health state value of the storage battery based on the first accumulated charging ampere hour and the first electric quantity threshold value; and the aging judging unit is used for judging that the storage battery ages if the first health state value is smaller than a first health state threshold value.
In a third aspect, an embodiment of the present application provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of the first aspects when the computer program is executed.
The one or more technical solutions provided by the embodiments of the present application at least achieve the following technical effects or advantages:
according to the embodiment of the application, the charge quantity of the storage battery in M times of charging and the corresponding charging time are obtained, wherein M is an integer greater than 1; if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold value, determining a first accumulated charging ampere hour of the storage battery according to the charging ampere hours of the M times of charging; obtaining a first health state value of the storage battery based on the first accumulated charging ampere time and a first electric quantity threshold value; and if the first health state value is smaller than the first health state threshold value, judging that the storage battery is aged. And obtaining a first health state value of the storage battery through charging data of M times of charging so as to judge whether the storage battery is aged or not in a software layer. Therefore, the hardware complexity is reduced, and the technical problem of shortening the development period of the whole vehicle is solved. The aging fault of the storage battery can be accurately judged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a fault determination method for a vehicle power-up system in an embodiment of the application;
FIG. 2 is a functional block diagram of a fault determining apparatus of a vehicle power supply system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The description as it relates to "first", "second", etc. in the present application is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
The embodiment of the application provides a fault judging method of a vehicle power supply system, which comprises a storage battery and a power battery. Referring to fig. 1, the method includes the following steps S101 to S104:
s101: and acquiring the charge quantity and the corresponding charge ampere time of the storage battery in M times of charging, wherein M is an integer larger than 1.
The charge amount refers to a capacitance that the storage battery theoretically acquires during a charging process, and the charge time refers to a capacitance that the storage battery actually acquires during a charging process.
It can be understood that before the charge quantity of the storage battery charged for M times and the corresponding charge time are obtained, the vehicle needs to be ensured to be in a power supplementing state and the electric quantity state of the storage battery is credible, so that accurate data obtaining can be realized, and the data credibility is improved.
It should be noted that, the method for ensuring that the vehicle is in the power-up state may include: after the vehicle is powered down under high voltage and the network dormancy is completed, a power domain controller timer T1 is activated and starts to accumulate for 12 hours, and after the integral multiple relation of 12 hours is met, the power domain controller is self-awakened and actively awakens a storage battery management system, the storage battery management system simultaneously detects that the battery power of the storage battery is lower than 75% and the power state of the storage battery is reliable, and at the moment, the power domain controller can awaken other controllers to complete power-on and power-up supplement. If the whole vehicle is not dormant currently, the storage battery management system detects that the electric quantity of the battery is not higher than 45% and the electric quantity state of the storage battery is reliable, meanwhile, the power domain controller is actively awakened through a LIN (Local Interconnect Network, serial communication network) line, and the power domain controller awakens other controllers to be electrified for power-up.
S102: and if the sum of the charging electric quantity of the M times of charging is equal to the first electric quantity threshold value, determining a first accumulated charging ampere hour of the storage battery according to the charging ampere hours of the M times of charging.
It is understood that the method for determining the first accumulated charging time of the storage battery according to the charging time of M times of charging comprises the following steps: and taking the sum of charging ampere hours of the M times of charging as the first accumulated charging ampere hour of the storage battery.
It can be understood that if the sum of the charging amounts of the M charges is not equal to the first power threshold, charging is continued and charging data is recorded to obtain the charging amount of each charging of the storage battery and the corresponding charging time.
It should be noted that, the first power threshold is an accumulated charge power, and the value thereof is relatively large, specifically, the fully charged charge power is 100%, and the first power threshold may be six times, that is, 600% of the fully charged charge power. The reason for setting the first electric quantity threshold value is to prolong the statistical period, reduce the influence of accidental errors on data, improve the data reliability and realize accurate judgment of the aging of the storage battery.
S103: and obtaining a first health state value of the storage battery based on the first accumulated charging ampere hour and the first electric quantity threshold value.
It can be appreciated that, based on the first accumulated charging ampere hour and the first electric quantity threshold value, the method for obtaining the first health state value of the storage battery can be as follows: the quotient of the first accumulated charging ampere-hour divided by the first electric quantity threshold value is used as a first health state value of the storage battery.
Specifically, assuming that the capacity of the battery at full charge is 40ah, the first power threshold may be 6×40ah=240 ah, and the first state of health value is 0.7 if the first accumulated charging ampere time is 168 ah.
S104: and if the first health state value is smaller than the first health state threshold value, judging that the storage battery is aged.
It is understood that if the first state of health value is not less than the first state of health threshold value, it is determined that the battery is not aged.
Specifically, if the first health state value is 0.7, the first health state threshold value is 0.8, and the aging of the storage battery is determined. And if the first health state value is 0.9, the first health state threshold value is 0.8, and the storage battery is judged to be not aged.
It is understood that after obtaining the first state of health value of the battery, it further comprises: the capacity of the battery is updated based on the first state of health value.
It should be noted that, updating the capacity of the storage battery can realize more accurate judgment of whether the storage battery is aged or not, and provide more accurate data for other operation steps.
It should be noted that, by using a storage mode of a linear data structure such as a queue, a battery electric quantity statistical state of health value of the storage battery is recorded in the cloud, when the state of health value storage space is about to overflow, only one section of the storage space is allowed to be inserted, the other end of the storage space is deleted, and a first-in first-out storage mode is maintained. If the storage battery is replaced or disassembled, the ageing judgment flag bit of the whole vehicle controller is cleared, all accumulated data is automatically cleared by the cloud, and accumulation under the next working condition is restarted.
It is understood that the method for judging whether the storage battery is aged or not can be realized further comprises the following steps S201 to S202:
s201: and under the condition that the vehicle is in the power-up state, acquiring the multidimensional state parameters of the storage battery, wherein the state parameters are used for representing the current working state of the storage battery.
It can be understood that before the multidimensional state parameters of the storage battery are acquired, the credibility of the electric quantity state of the storage battery needs to be ensured, so that accurate data acquisition can be realized, and the credibility of the data is improved.
It should be noted that the state parameters may include a battery charge amount, a battery temperature, a second accumulated charging time, a charging current minimum value, a discharging voltage, and a charging current.
S202: and judging whether the storage battery is aged or not based on the multidimensional state parameters of the storage battery.
It can be appreciated that there are various embodiments of the method for determining whether a battery is aged based on a multi-dimensional state parameter of the battery:
embodiment one:
and if the multi-dimensional state parameters of the storage battery meet the corresponding preset threshold conditions, the duration time is longer than the preset duration time threshold value, and the storage battery is judged to be aged. The preset threshold condition means that the battery power is in a preset power range, the battery temperature is greater than a preset temperature threshold, the second accumulated charging ampere time is less than a preset ampere time threshold, and the minimum charging current is less than a preset current threshold.
It should be noted that the preset power range may be 50% -80%, the preset temperature threshold may be zero degrees celsius, the preset time threshold may be 6ah, the preset current threshold may be 0.5A, and the preset time period threshold may be 500ms.
It should be noted that, because the battery power and aging degree, battery temperature, discharge rate and other conditions of the storage battery are closely related, and the electric capacity of the storage battery is obtained by continuously correcting the state of the storage battery in long-term need, the battery capacity jump is caused along with the continuous use of the storage battery along with the adjustment of the correction times, the specific judgment logic needs to combine the battery power, the battery temperature, the second accumulated charging time and the charging current minimum value, and needs to meet the preset time threshold.
Embodiment two:
and if the multi-dimensional state parameters of the storage battery meet the corresponding preset threshold conditions, the duration time is longer than the preset duration time threshold value, and the storage battery is judged to be aged. The preset threshold condition means that the battery power is smaller than a second power threshold, the charging current is smaller than a preset current threshold, and the battery temperature is larger than a preset temperature threshold.
It should be noted that the preset duration threshold may be 500ms, the second power threshold may be 90%, the preset current threshold may be 0.5A, and the preset temperature threshold may be zero degrees celsius.
It should be noted that, because the storage battery itself has a certain limit of the number of charge and discharge cycles, the long-term use will be accompanied with the continuous increase of the aging internal resistance, resulting in the continuous decay of the life expectancy over time, and the temperature value will affect the internal chemical reaction, so the specific judgment logic needs to combine the battery power, the charging current and the battery temperature, and needs to meet the preset time threshold value, so as to realize the accurate judgment of the aging of the storage battery.
It is understood that the method for judging whether the storage battery is aged or not can be realized further comprises the following steps S301 to S304:
s301: and under the condition that the vehicle is in the power-up state, controlling the vehicle to self-learn the state of the storage battery.
It can be understood that before the vehicle is controlled to self-learn the state of the storage battery, the reliability of the state of charge of the storage battery needs to be ensured, so that accurate data acquisition can be realized, and the reliability of the data is improved.
It is to be understood that the method of controlling the state of the self-learning storage battery of the vehicle includes the following steps S3011 to S3012:
s3011: and responding to the fact that the vehicle meets the preset learning condition, controlling the vehicle to be in a discharging state within a preset learning duration threshold value, keeping the vehicle awake, and recording discharging data.
It should be noted that the learning period threshold may be 30 minutes.
It is understood that the vehicle meeting the preset learning condition means that: the duration of the vehicle in the dormant state is controlled to be greater than a preset dormant duration threshold. And controlling the power domain controller to actively wake up the storage battery management system to acquire the battery power of the storage battery. And responding to the fact that the battery electric quantity is larger than a preset wake-up electric quantity threshold value, and judging that the vehicle meets preset learning conditions.
It should be noted that the sleep duration threshold may be 4h, and the wake-up power threshold may be 95%.
S3012: and responding to the electric quantity of the storage battery being smaller than a preset learning electric quantity threshold value, and completing the self-learning according to the discharging data.
S302: and acquiring the internal resistance of the storage battery based on the self-learned storage battery state in response to the number of times the vehicle self-learns the storage battery state exceeding the first time threshold.
The first time count threshold may be 10 times. The first time threshold value is set, so that the self-learning result is more accurate, and the data reliability is improved.
S303: and obtaining a second health state value of the storage battery based on the internal resistance of the storage battery.
Specifically, the method for obtaining the second state of health value of the storage battery based on the internal resistance of the storage battery may be: dividing the difference of the internal resistance of the storage battery and the initial internal resistance of the storage battery by the quotient obtained by dividing the initial internal resistance of the storage battery as a health proportion; a difference in the reduced health ratio is taken as the second health status value.
S304: and if the second health state value is smaller than the second health state threshold value, judging that the storage battery is aged.
It is understood that if the second state of health value is not less than the second state of health threshold value, it is determined that the battery is not aged.
Specifically, if the second health state value is 0.7 and the second health state threshold value is 0.8, the aging of the storage battery is determined. And if the second health state value is 0.9 and the second health state threshold value is 0.8, judging that the storage battery is not aged.
It should be noted that, the aging mechanism of the vehicle-end starting storage battery caused by active material loss mainly occurs in a low-power section during the use process, and the internal resistance is changed into a large increase in the later period along with the final trend of failure in the normal use process of the battery.
It is understood that the method for judging whether the storage battery is aged or not can be realized further comprises the following steps S401 to S402:
s401: under the condition that the vehicle is in a non-high-voltage state, acquiring multi-dimensional state parameters of the storage battery, wherein the state parameters comprise battery electric quantity and discharge voltage, and the state parameters are used for representing the current working state of the storage battery.
It can be understood that before the multidimensional state parameters of the storage battery are acquired, the credibility of the electric quantity state of the storage battery needs to be ensured, so that accurate data acquisition can be realized, and the credibility of the data is improved.
It should be noted that, the method for ensuring that the vehicle is in the non-high pressure state may include: and in the using process of the vehicle, the current vehicle environment can be adjusted along with the current using mode, and the conversion from the high-voltage scene to the non-high-voltage scene is completed through an event triggering mechanism. Under a high-voltage scene, the power domain controller can release shielding of a power-down flow when not receiving a high-voltage request signal, and simultaneously sends a standby instruction to finish a power-off flow of the electric appliance. And simultaneously starting to accumulate the first preset waiting time, and if the vehicle is in a static state currently or directly overtime, controlling the DCDC (DC to DC power supply, direct current to direct current power supply) to exit the current working mode by the power domain controller. And simultaneously starting to accumulate a second preset waiting time, and judging the current state of the DCDC, the current magnitude of the battery or the direct overtime. And the power domain controller sends an HV OFF (high voltage OFF) instruction to the power battery management system, and if the current power battery state is switched to an inactive state, the power domain controller requests the high-voltage parts to perform active discharging according to the priority, so that the high-voltage power down of the whole vehicle is completed. The first preset waiting time may be 5s, and the second preset waiting time may be 2s.
S402: and if the multi-dimensional state parameters of the storage battery meet the corresponding preset threshold conditions, the duration time is longer than the preset duration time threshold value, and the storage battery is judged to be aged. The preset threshold condition means that the battery power is larger than a second power threshold and the discharge voltage is smaller than a preset voltage threshold.
It should be noted that the preset duration threshold may be 500ms, the second power threshold may be 75%, and the preset voltage threshold may be 11.2v.
It should be noted that, because the influence of current fluctuation caused by the operation of the low-voltage load electric appliance is considered, a filter is added to filter the peak, so as to prevent the power battery from detecting the voltage jump abnormal frame and causing the low-voltage relay to be unable to be normally attracted, the specific judgment logic not only satisfies the corresponding preset threshold condition by the multidimensional state parameter of the storage battery, but also includes that the duration time that the multidimensional state parameter of the storage battery satisfies the corresponding preset threshold condition is larger than the preset duration threshold.
It can be understood that the power supply system fault includes battery aging and power battery power shortage, and the method for determining whether the power battery power shortage includes the following steps S501 to S504:
s501: and when the vehicle is not in a dormant state, responding to the power battery to receive a power supplementing signal, and supplementing electricity to the storage battery by the power battery, wherein the power supplementing signal is a signal sent under the condition that the battery electricity quantity of the storage battery is lower than a third electricity quantity threshold value.
It can be understood that before the power battery receives the electric compensation signal and supplements electricity to the storage battery, the power battery needs to ensure that the electric quantity state of the storage battery is reliable, so that accurate data acquisition can be realized, and the data reliability is improved.
It should be noted that the third power threshold may be 20% or a similar value.
S502: and recording the time interval of the continuous twice power battery for supplementing electricity to the storage battery.
S503: and recording abnormal power-up in response to the time interval being less than the power-up duration threshold.
It should be noted that the power-up duration threshold may be 12h.
S504: and under the condition that the number of abnormal power supply times is larger than a second number threshold, determining that the power battery is deficient.
It should be noted that the second time threshold may be 2 times. The setting of the second time threshold can realize avoiding misjudgment of accidental factors, so that the power battery is misjudged to be deficient, and the reliability of judgment is improved.
After the vehicle is locked and powered down, the controller delays for a certain time and withdraws all the controller awakening sources, the power domain controller judges that the local sleep condition is met, then sends Release network communication to the network management module, and simultaneously sends a RequestPoweroff to allow the central controller to sleep, and at the moment, the application frame message and the NM awakening frame message stop sending, so that the whole vehicle is in a sleep state.
It should be noted that, in the long-term use process of the vehicle, the consumption of standby energy leads to the excessive dark current, or the interaction of the functions at the bottom layer leads to the continuous awakening of the vehicle communication, which can cause the technical problem of power battery power consumption of the vehicle.
It should be noted that, the power supply system fault includes battery aging and power battery power shortage, and steps S101 to S104, steps S201 to S202, steps S301 to S304, or steps S401 to S402 may all be implemented separately to determine whether the battery is aged. In addition, steps S501 to S504 may be separately implemented to determine whether the power battery is deficient. It can be understood that, under different application scenarios, the steps S101 to S104, the steps S201 to S202, the steps S301 to S304, the steps S401 to S402, and the steps S501 to S504 may be performed separately or in combination to perform fault determination of the power supply system.
According to the embodiment of the application, reasonable judgment logic is set through the application layer program on the basis of not increasing the hardware cost, data is synchronously uploaded to the background through the vehicle-mounted communication terminal in the normal use process of the vehicle, and the background is used for manually carrying out remote diagnosis on the severity of the fault or actively carrying out door-on care, so that the trouble caused by the fact that the whole vehicle cannot be started due to the fault of the storage battery or the power battery is solved to a certain extent.
According to the embodiment of the application, the charge quantity of the storage battery in M times of charging and the corresponding charging time are obtained, wherein M is an integer greater than 1; if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold value, determining a first accumulated charging ampere hour of the storage battery according to the charging ampere hours of the M times of charging; obtaining a first health state value of the storage battery based on the first accumulated charging ampere time and a first electric quantity threshold value; and if the first health state value is smaller than the first health state threshold value, judging that the storage battery is aged. And obtaining a first health state value of the storage battery through charging data of M times of charging so as to judge whether the storage battery is aged or not in a software layer. Therefore, the hardware complexity is reduced, and the technical problem of shortening the development period of the whole vehicle is solved. The aging fault of the storage battery can be accurately judged.
Based on the same inventive concept, referring to fig. 2, an embodiment of the present application provides a fault determining apparatus 10 of a vehicle power supplementing system, the power supplementing system including a storage battery, the fault determining apparatus 10 of the vehicle power supplementing system including: an obtaining unit 110, configured to obtain a charge amount of the storage battery during M times of charging and a corresponding charging time, where M is an integer greater than 1; an ampere hour determining unit 120, configured to determine a first accumulated ampere hour of charging of the storage battery according to the ampere hour of charging of the M times of charging if the sum of the charging electric quantities of the M times of charging is equal to a first electric quantity threshold; a health determining unit 130, configured to obtain a first health state value of the storage battery based on the first accumulated charging time and the first electric quantity threshold; the aging determining unit 140 is configured to determine that the battery ages if the first health status value is smaller than the first health status threshold value.
It will be appreciated that the fault determination apparatus 10 of the vehicle power supply system further includes: an updating unit 150 for updating the capacity of the battery based on the first state of health value.
It will be appreciated that the fault determination apparatus 10 of the vehicle power supply system further includes: a state parameter obtaining unit 160, configured to obtain a multi-dimensional state parameter of the storage battery when the vehicle is in a power-up state, where the state parameter is used to characterize a current working state of the storage battery; the state judging unit 170 is configured to judge whether the battery is aged or not based on the multidimensional state parameter of the battery.
It may be understood that the state parameters include a battery power, a battery temperature, a second accumulated charging time and a charging current minimum value, and the state determining unit 170 includes: a first judging subunit 1710, configured to judge that the storage battery ages if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold condition is greater than the preset duration threshold; the preset threshold condition means that the battery power is in a preset power range, the battery temperature is greater than a preset temperature threshold, the second accumulated charging ampere time is less than a preset ampere time threshold, and the minimum charging current is less than a preset current threshold.
It may be understood that the state parameters include a battery level, a charging current, and a battery temperature, and the state determining unit 170 further includes: a second judging subunit 1720, configured to judge that the storage battery ages if the multi-dimensional state parameters of the storage battery satisfy the duration time of the corresponding preset threshold condition is greater than the preset duration threshold; the preset threshold condition means that the battery power is smaller than a second power threshold, the charging current is smaller than a preset current threshold, and the battery temperature is larger than a preset temperature threshold.
It may be appreciated that the state parameter obtaining unit 160 is further configured to obtain, when the vehicle is in a non-high voltage state, a multi-dimensional state parameter of the storage battery, where the state parameter includes a battery power and a discharge voltage, and the state parameter is used to characterize a current working state of the storage battery; the state judging unit 170 is further configured to judge that the storage battery ages if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions is greater than the preset duration threshold; the preset threshold condition means that the battery power is larger than a second power threshold and the discharge voltage is smaller than a preset voltage threshold.
It will be appreciated that the fault determination apparatus 10 of the vehicle power supply system further includes: a self-learning control unit 180 for controlling the state of the self-learning storage battery of the vehicle in the case that the vehicle is in the power-up state; an internal resistance obtaining unit 190 for obtaining an internal resistance of the battery based on the self-learned battery state in response to the number of times the vehicle self-learns the battery state exceeding a first number threshold; a health generation unit 200 for obtaining a second health state value of the battery based on the internal resistance of the battery; the state determining unit 170 is further configured to determine that the battery is aged if the second state of health value is less than the second state of health threshold.
It will be appreciated that the power supply system further includes a power battery, and the fault determination apparatus 10 of the vehicle power supply system further includes: the signal obtaining unit 210 is configured to respond to the power battery receiving a power supply signal when the vehicle is not in a sleep state, where the power battery supplies power to the storage battery, and the power supply signal is a signal sent when the battery power of the storage battery is lower than a third power threshold; a recording unit 220, configured to record a time interval between two consecutive power battery recharging operations to the storage battery; a response unit 230, configured to record an abnormal power-up in response to the time interval being less than the power-up duration threshold; the power-shortage judging unit 240 is configured to judge that the power battery is deficient in the case where the number of abnormal power supplements is greater than the second number threshold.
It should be appreciated that, in the embodiment of the present application, further details of implementation of the fault determining apparatus 10 for a vehicle power supply system are described with reference to the foregoing fault determining method for a vehicle power supply system, and are not repeated herein for brevity of description.
Based on the same inventive concept, the embodiment of the present application further provides an electronic device, as shown in fig. 3, including a memory 304, a processor 302, and a computer program stored in the memory 304 and capable of running on the processor 302, where the processor 302 executes the steps described in any implementation manner of the fault determination method embodiment of the vehicle power supply system.
Where in FIG. 3 a bus architecture (represented by bus 300), bus 300 may comprise any number of interconnected buses and bridges, with bus 300 linking together various circuits, including one or more processors, represented by processor 302, and memory, represented by memory 304. Bus 300 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be described further herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 302 is responsible for managing the bus 300 and general processing, while the memory 304 may be used to store data used by the processor 302 in performing operations.
According to the embodiment of the application, the charge quantity of the storage battery in M times of charging and the corresponding charging time are obtained, wherein M is an integer greater than 1; if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold value, determining a first accumulated charging ampere hour of the storage battery according to the charging ampere hours of the M times of charging; obtaining a first health state value of the storage battery based on the first accumulated charging ampere time and a first electric quantity threshold value; and if the first health state value is smaller than the first health state threshold value, judging that the storage battery is aged. And obtaining a first health state value of the storage battery through charging data of M times of charging so as to judge whether the storage battery is aged or not in a software layer. Therefore, the hardware complexity is reduced, and the technical problem of shortening the development period of the whole vehicle is solved. The aging fault of the storage battery can be accurately judged.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software that is executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated in one processing unit, each unit may exist alone physically, or two or more units may be integrated in one unit.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate components may or may not be physically separate, and components as control devices may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only an example of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A fault determination method for a vehicle power replenishment system, the power replenishment system comprising a storage battery, the method comprising:
acquiring the charge quantity and the corresponding charge ampere time of the storage battery in M times of charging, wherein M is an integer greater than 1;
if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold value, determining a first accumulated charging ampere time of the storage battery according to the charging ampere time of the M times of charging;
obtaining a first health state value of the storage battery based on the first accumulated charging ampere hour and the first electric quantity threshold value;
and if the first health state value is smaller than a first health state threshold value, judging that the storage battery is aged.
2. The failure determination method of a vehicle power replenishment system according to claim 1, further comprising, after the obtaining of the first state of health value of the battery:
and updating the capacity of the storage battery based on the first health state value.
3. The failure determination method of a vehicle power replenishment system according to claim 1, further comprising:
under the condition that the vehicle is in a power-up state, acquiring a multi-dimensional state parameter of the storage battery, wherein the state parameter is used for representing the current working state of the storage battery;
and judging whether the storage battery is aged or not based on the multidimensional state parameters of the storage battery.
4. The method according to claim 3, wherein the state parameters include a battery charge amount, a battery temperature, a second cumulative charging time and a charging current minimum value, and the determining whether the battery is aged based on the multi-dimensional state parameters of the battery includes:
if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions and are all larger than the preset duration time threshold, judging that the storage battery is aged;
the preset threshold condition means that the battery power is in a preset power range, the battery temperature is greater than a preset temperature threshold, the second accumulated charging ampere time is less than a preset ampere time threshold, and the charging current minimum value is less than a preset current threshold.
5. The method according to claim 3, wherein the state parameters include a battery charge amount, a charging current, and a battery temperature, and the determining whether the battery is aged based on the multi-dimensional state parameters of the battery further comprises:
if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions and are all larger than the preset duration time threshold, judging that the storage battery is aged;
the preset threshold condition means that the battery power is smaller than a second power threshold, the charging current is smaller than a preset current threshold, and the battery temperature is larger than a preset temperature threshold.
6. The failure determination method of a vehicle power replenishment system according to claim 1, further comprising:
under the condition that the vehicle is in a non-high-voltage state, acquiring multi-dimensional state parameters of the storage battery, wherein the state parameters comprise battery electric quantity and discharge voltage, and the state parameters are used for representing the current working state of the storage battery;
if the multi-dimensional state parameters of the storage battery meet the duration time of the corresponding preset threshold conditions and are all larger than the preset duration time threshold, judging that the storage battery is aged;
the preset threshold condition means that the battery power is greater than a second power threshold and the discharge voltage is less than a preset voltage threshold.
7. The failure determination method of a vehicle power replenishment system according to claim 1, further comprising:
controlling the vehicle to self-learn a storage battery state under the condition that the vehicle is in a power-up state;
acquiring the internal resistance of the storage battery based on the self-learned storage battery state in response to the number of times the vehicle self-learns the storage battery state exceeding a first time threshold;
obtaining a second state of health value of the battery based on the internal resistance of the battery;
and if the second health state value is smaller than a second health state threshold value, judging that the storage battery is aged.
8. The failure determination method of a vehicle power replenishment system according to claim 1, wherein the power replenishment system further comprises a power battery, the method further comprising:
when the vehicle is not in a dormant state, responding to the power battery to receive a power supplementing signal, and supplementing electricity to the storage battery by the power battery, wherein the power supplementing signal is a signal sent out when the battery electricity quantity of the storage battery is lower than a third electricity quantity threshold value;
recording the time interval of continuous power supply of the power battery to the storage battery for two times;
recording abnormal power-up time in response to the time interval being smaller than a power-up time length threshold;
and under the condition that the number of abnormal power supply times is larger than a second number threshold, judging that the power battery is deficient.
9. A fault determination apparatus for a vehicle power replenishment system, the power replenishment system comprising a storage battery, the apparatus comprising:
the acquisition unit is used for acquiring the charge quantity of the storage battery in M times of charging and the corresponding charging time, wherein M is an integer greater than 1;
the time-setting determining unit is used for determining a first accumulated charging time of the storage battery according to the charging time of the M times of charging if the sum of the charging electric quantity of the M times of charging is equal to a first electric quantity threshold;
the health determining unit is used for obtaining a first health state value of the storage battery based on the first accumulated charging ampere hour and the first electric quantity threshold value;
and the aging judging unit is used for judging that the storage battery ages if the first health state value is smaller than a first health state threshold value.
10. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any of claims 1-8 when the computer program is executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310714955.2A CN116691444A (en) | 2023-06-15 | 2023-06-15 | Fault judging method, device and equipment of vehicle power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310714955.2A CN116691444A (en) | 2023-06-15 | 2023-06-15 | Fault judging method, device and equipment of vehicle power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116691444A true CN116691444A (en) | 2023-09-05 |
Family
ID=87825311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310714955.2A Pending CN116691444A (en) | 2023-06-15 | 2023-06-15 | Fault judging method, device and equipment of vehicle power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116691444A (en) |
-
2023
- 2023-06-15 CN CN202310714955.2A patent/CN116691444A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108081983B (en) | Control system and control method for preventing storage battery from being lack of power | |
| US20160001719A1 (en) | Charging Method | |
| CN106338690B (en) | A kind of reserve battery detection method, device, system and method for supplying power to | |
| CN112092626A (en) | Remote monitoring protection method and system for low-voltage storage battery of electric vehicle | |
| CN110803025A (en) | Low-voltage power supply management method and system, electric vehicle and storage medium | |
| US8954777B2 (en) | Electronic apparatus and image forming apparatus | |
| CN110871708A (en) | Intelligent early warning method and system for electric quantity of whole vehicle and vehicle | |
| CN109435761B (en) | Storage battery voltage monitoring method and vehicle control unit | |
| CN113696780B (en) | Battery management system self-wake-up diagnosis method, battery management system and vehicle | |
| CN113561918B (en) | Intelligent power supplementing method and system for storage battery of electric automobile | |
| CN113147503A (en) | Electric vehicle power supply management method | |
| CN110843603A (en) | Method and system for temperature control management of low-voltage power supply of electric automobile based on sensor | |
| CN112737043A (en) | Power supply energy storage system, and control method and device of power supply energy storage system | |
| TWM575779U (en) | Vehicle low voltage electrical system | |
| CN115972985A (en) | Battery pack balancing method and device, vehicle and storage medium | |
| WO2012088929A1 (en) | Method, device and system for battery charging control | |
| WO2014018220A1 (en) | Open circuit voltage checking for a battery system | |
| CN117601709A (en) | Self-adaptive intelligent electricity supplementing method for pure electric vehicle | |
| CN116691444A (en) | Fault judging method, device and equipment of vehicle power supply system | |
| WO2024087061A1 (en) | Control method for electronic device, and electronic device and storage medium | |
| CN112977064A (en) | Low-power charging control system and control method for low-voltage storage battery | |
| JP2013162599A (en) | Power supply control device, power supply control method, and power interchange system | |
| CN113740743A (en) | SOC acquisition and calculation method for vehicle-mounted start-stop battery | |
| CN113370826B (en) | Control method, control device and charging system of charging pile | |
| CN116278752A (en) | Thermal runaway inspection method, thermal runaway inspection device, wake-up circuit, and nonvolatile storage medium |
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 |