CN112078367A - Storage battery charging control method, vehicle control unit, system and vehicle - Google Patents
Storage battery charging control method, vehicle control unit, system and vehicle Download PDFInfo
- Publication number
- CN112078367A CN112078367A CN201910516591.0A CN201910516591A CN112078367A CN 112078367 A CN112078367 A CN 112078367A CN 201910516591 A CN201910516591 A CN 201910516591A CN 112078367 A CN112078367 A CN 112078367A
- Authority
- CN
- China
- Prior art keywords
- storage battery
- battery
- charging
- vehicle
- electric quantity
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—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]
- B60L58/14—Preventing excessive discharging
-
- 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]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- 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 embodiment of the invention provides a storage battery charging control method, a vehicle controller, a system and a vehicle, wherein the control method comprises the following steps: acquiring the service life of a storage battery and the residual electric quantity of the storage battery detected by a storage battery sensor; according to the service life of the storage battery, obtaining a charging starting threshold value corresponding to the service life of the storage battery; comparing the residual electric quantity of the storage battery with a charging starting threshold value; and when the comparison result shows that the residual electric quantity of the storage battery is smaller than the charging starting threshold value, controlling the whole vehicle high-voltage system to be electrified and sending a first control signal to the direct-current converter. In the embodiment of the invention, the vehicle control unit can acquire the service life of the storage battery and the residual electric quantity of the storage battery in real time according to the detected service life of the storage battery by the storage battery sensor, obtain the charging starting threshold corresponding to the service life of the storage battery, and charge the storage battery when the residual electric quantity of the storage battery is determined to be smaller than the charging starting threshold, so that the storage battery is favorably ensured to be in a high electric quantity state, and the service life of the storage battery is favorably.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a storage battery charging control method, a vehicle control unit, a system and a vehicle.
Background
The intelligent storage battery charging control method of the existing product adopts a fixed start-stop threshold value, does not consider the aging state of the storage battery, cannot adjust in real time according to the aging state of the storage battery, and inevitably adopts an intermediate value compatible with new and old batteries. The intermediate value is possibly too low for a new battery, and the new battery must be discharged to a lower value to enter intelligent charging, so that the aging of the storage battery is accelerated to a certain extent; the intermediate value may be too high for the old battery, and the intelligent charging end threshold value cannot be charged at all at the end of the life of the storage battery, so that electric energy waste is caused.
Disclosure of Invention
The technical purpose to be achieved by the embodiment of the invention is to provide a control method, a vehicle controller, a system and a vehicle for charging a storage battery, which are used for solving the problems of accelerated storage battery aging and electric energy waste caused by unreasonable threshold setting for starting and ending charging when the storage battery is charged currently.
In order to solve the above technical problem, an embodiment of the present invention provides a method for controlling battery charging, which is applied to a vehicle controller, and includes:
acquiring the service life of a storage battery and the residual electric quantity of the storage battery detected by a storage battery sensor;
obtaining a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and a preset corresponding relation between the service life of the storage battery and the charging start-stop threshold;
comparing the residual electric quantity of the storage battery with a charging starting threshold value to obtain a comparison result;
and when the comparison result shows that the residual electric quantity of the storage battery is smaller than the charging starting threshold value, controlling the whole vehicle high-voltage system to be electrified, and sending a first control signal to the direct current converter, wherein the first control signal is used for controlling the direct current converter to be switched to a working state.
Further, the control method as described above further includes, after the dc converter is switched to the operating state:
and when the acquired residual electric quantity of the storage battery is larger than the charging stop threshold value, sending a second control signal to the direct current converter, wherein the second control signal is used for controlling the direct current converter to be switched to a dormant state.
Preferably, the control method as described above, after the step of acquiring the battery life parameter and the remaining capacity of the battery detected by the battery sensor, further includes:
acquiring a finished automobile high-voltage system state, a finished automobile overhaul state detected by an automobile body controller and the residual electric quantity of a power battery detected by a battery management system;
when the service life of the storage battery is determined to be larger than a first preset value, the residual electric quantity of the power battery is determined to be larger than a second preset value, the whole vehicle high-voltage system is in a normal state, and the whole vehicle maintenance state is not maintained, the storage battery charging mode is started, a third control signal is sent to the storage battery sensor, and the third control signal is used for controlling the storage battery sensor to enter a wake-up enabling mode;
and when the service life of the storage battery is determined to be smaller than a first preset value, the residual electric quantity of the power battery is determined to be smaller than a second preset value, the whole vehicle high-voltage system has an electric fault or the whole vehicle maintenance state is maintenance, forbidding to enter a storage battery charging mode and sending a fourth control signal to the storage battery sensor, wherein the fourth control signal is used for controlling the storage battery sensor to forbid entering a wake-up enabling mode.
Preferably, the control method as described above, after the dc converter is switched to the operating state, further includes:
detecting the running mode information of the whole vehicle high-voltage system;
when the operation mode information is detected to be forbidden to enter the storage battery charging mode, the storage battery charging mode is exited;
alternatively, when an operation mode request different from the battery charging mode is detected, the operation mode corresponding to the operation mode request is switched.
Specifically, after the step of obtaining the charge start threshold and the charge stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and the preset corresponding relationship between the service life of the storage battery and the charge start-stop threshold, the control method further includes:
and sending the charging starting threshold value to the storage battery sensor.
Further, the control method as described above, after the step of sending the charge start threshold to the battery sensor, further includes:
awakening when receiving a first awakening signal sent by the storage battery sensor, wherein the awakening signal is generated when the storage battery sensor receives a third control signal and detects that the residual electric quantity of the storage battery is smaller than a charging starting threshold value;
and sending a second wake-up signal to the whole vehicle high-voltage system, and entering the step of acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor, wherein the second wake-up signal is used for waking up the whole vehicle high-voltage system.
Another preferred embodiment of the present invention also provides a vehicle control unit, including:
the first processing module is used for acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor;
the second processing module is used for obtaining a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and the corresponding relation between the preset service life of the storage battery and the charging start-stop threshold;
the third processing module is used for comparing the residual electric quantity of the storage battery with the charging starting threshold value to obtain a comparison result;
and the fourth processing module is used for controlling the whole vehicle high-voltage system to be powered on and sending a first control signal to the direct current converter when the comparison result shows that the residual electric quantity of the storage battery is smaller than the charging starting threshold value, and the first control signal is used for controlling the direct current converter to be switched to a working state.
Further, the vehicle control unit as described above further includes:
and the fifth processing module is used for sending a second control signal to the direct current converter when the acquired residual electric quantity of the storage battery is larger than the charging stop threshold value, wherein the second control signal is used for controlling the direct current converter to be switched to the dormant state.
Preferably, the vehicle control unit as described above further includes:
the acquisition module is used for acquiring the state of a high-voltage system of the whole vehicle, the overhaul state of the whole vehicle detected by the vehicle body controller and the residual electric quantity of the power battery detected by the battery management system;
the sixth processing module is used for entering a storage battery charging mode and sending a third control signal to the storage battery sensor when the service life of the storage battery is determined to be greater than the first preset value, the residual electric quantity of the power battery is determined to be greater than the second preset value, the whole vehicle high-voltage system is in a normal state and the whole vehicle maintenance state is not maintained, and the third control signal is used for controlling the storage battery sensor to enter a wake-up enabling mode;
and the seventh processing module is used for forbidding to enter a storage battery charging mode and sending a fourth control signal to the storage battery sensor when the service life of the storage battery is determined to be smaller than the first preset value, the residual electric quantity of the power battery is determined to be smaller than the second preset value, and the electric fault exists in the whole vehicle high-voltage system or the whole vehicle maintenance state is maintenance, and the fourth control signal is used for controlling the storage battery sensor to forbid to enter a wake-up enabling mode.
Preferably, the vehicle control unit as described above further includes:
the detection module is used for detecting the operation mode information of the whole vehicle high-voltage system;
the eighth processing module is used for exiting the storage battery charging mode when the operation mode information is detected as forbidding to enter the storage battery charging mode;
alternatively, when an operation mode request different from the battery charging mode is detected, the operation mode corresponding to the operation mode request is switched.
Specifically, the vehicle control unit as described above further includes:
and the sending module is used for sending the charging starting threshold value to the storage battery sensor.
Further, the vehicle control unit as described above further includes:
the ninth processing module is used for waking up when receiving a first wake-up signal sent by the storage battery sensor, wherein the wake-up signal is generated when the storage battery sensor receives a third control signal and detects that the residual electric quantity of the storage battery is smaller than a charging starting threshold value;
and the tenth processing module is used for sending a second wake-up signal to the whole vehicle high-voltage system and entering the step of acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor, wherein the second wake-up signal is used for waking up the whole vehicle high-voltage system.
Still another preferred embodiment of the present invention also provides a storage battery charging control system including:
the system comprises a storage battery, a storage battery sensor, a direct current converter, a battery management system, a power battery, a vehicle body controller and the vehicle control unit;
the storage battery sensor is used for detecting the service life of a storage battery and the residual electric quantity of the storage battery;
the direct current converter is connected with the storage battery and the power battery;
the battery management system is used for detecting the residual electric quantity of the power battery;
the vehicle control unit is respectively connected with the vehicle body controller, the battery management system, the dc converter and the battery sensor, and the vehicle control unit stores a computer program, and when the computer program is executed, the steps of the control method for charging the battery are implemented.
Specifically, in the battery charging control system, the battery sensor is connected with the vehicle control unit through the vehicle body controller.
Still another preferred embodiment of the present invention also provides a vehicle including: the battery charging control system as described above.
Compared with the prior art, the control method, the vehicle control unit, the system and the vehicle for charging the storage battery provided by the embodiment of the invention at least have the following beneficial effects:
in the embodiment of the invention, the vehicle control unit may obtain the battery life and the remaining battery capacity of the battery sensor in real time according to the detected battery life and the detected remaining battery capacity, where the battery sensor obtains the battery life and the remaining battery capacity by measuring parameters such as voltage, current, and terminal temperature of the battery, and optionally, the obtaining operation of the vehicle control unit may include actively requesting to obtain or passively receiving data sent by the battery sensor in real time. Further, the vehicle control unit can obtain a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the preset corresponding relation between the service life of the storage battery and the charging start-stop threshold, and compare the residual electric quantity of the storage battery with the charging start threshold, when the residual electric quantity of the storage battery is determined to be smaller than the charging start threshold, the electric quantity of the storage battery can be determined to reach a chargeable range, the vehicle control unit controls the vehicle high-voltage system to be electrified, and then controls the direct-current converter to be switched to a working state, the high-voltage electricity of the power battery is converted into low-voltage electricity to charge the storage battery, the storage battery is favorable for being in a high-electric-quantity state, further, the condition that the storage battery is solidified due to deep discharging.
Drawings
FIG. 1 is a flow chart illustrating a control method applied to charging a battery according to the present invention;
FIG. 2 is a second flowchart of the control method applied to charging a battery according to the present invention;
FIG. 3 is a graph of the present invention relating battery life to charge start stop threshold;
FIG. 4 is a third schematic flowchart of the control method applied to charging a battery according to the present invention;
FIG. 5 is a fourth flowchart of the control method applied to the charging of the storage battery according to the present invention;
FIG. 6 is a schematic structural diagram of the vehicle control unit of the present invention;
FIG. 7 is a schematic diagram of a battery charging control system according to the present invention;
fig. 8 is a second schematic structural diagram of the battery charging control system of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Referring to fig. 1, a preferred embodiment of the present invention provides a method for controlling battery charging, which is applied to a vehicle controller, and includes:
step S101, acquiring the service life of a storage battery and the residual capacity of the storage battery detected by a storage battery sensor;
step S102, obtaining a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and a preset corresponding relation between the service life of the storage battery and the charging start-stop threshold;
step S103, comparing the residual electric quantity of the storage battery with a charging starting threshold value to obtain a comparison result;
and step S104, when the comparison result shows that the residual electric quantity of the storage battery is smaller than the charging starting threshold value, controlling the whole vehicle high-voltage system to be electrified, and sending a first control signal to the direct current converter, wherein the first control signal is used for controlling the direct current converter to be switched to a working state.
In the embodiment of the invention, the vehicle control unit may obtain the battery life and the remaining battery capacity of the battery sensor in real time according to the detected battery life and the detected remaining battery capacity, where the battery sensor obtains the battery life and the remaining battery capacity by measuring parameters such as voltage, current, and terminal temperature of the battery, and optionally, the obtaining operation of the vehicle control unit may include actively requesting to obtain or passively receiving data sent by the battery sensor in real time. Further, the vehicle control unit can obtain a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the preset corresponding relation between the service life of the storage battery and the charging start-stop threshold, and compare the residual electric quantity of the storage battery with the charging start threshold, when the residual electric quantity of the storage battery is determined to be smaller than the charging start threshold, the electric quantity of the storage battery can be determined to reach a chargeable range, the vehicle control unit controls the vehicle high-voltage system to be electrified, and then controls the direct-current converter to be switched to a working state, the high-voltage electricity of the power battery is converted into low-voltage electricity to charge the storage battery, the storage battery is favorable for being in a high-electric-quantity state, further, the condition that the storage battery is solidified due to deep discharging.
Further, the control method as described above further includes, after the dc converter is switched to the operating state:
and when the acquired residual electric quantity of the storage battery is larger than the charging stop threshold value, sending a second control signal to the direct current converter, wherein the second control signal is used for controlling the direct current converter to be switched to a dormant state.
In the embodiment of the invention, as the electric quantity of the storage battery is higher, the charging efficiency is lower, when the acquired residual electric quantity of the storage battery is greater than the charging stop threshold, the electric quantity of the storage battery can be determined to reach the preset full-electricity standard, and at the moment, the direct current converter is controlled to be switched to the dormant state, namely, the charging of the storage battery is finished, so that the energy loss caused by the fact that the electric consumption of a high-voltage component of the whole vehicle is far greater than the charging quantity of the storage battery when the electric quantity state of the storage battery is continuously greater than the charging stop. Optionally, because the change of the service life of the storage battery is small in one charging process, the charging stop threshold corresponding to the charging threshold when charging is started is selected as the charging stop threshold in one charging process, which is beneficial to improving the efficiency.
Referring to fig. 2, preferably, the control method as described above, after the step S101 of acquiring the battery life parameter and the remaining battery capacity detected by the battery sensor, further includes:
step S201, acquiring a finished automobile high-voltage system state, a finished automobile maintenance state detected by an automobile body controller and the residual electric quantity of a power battery detected by a battery management system;
step S202, when the service life of the storage battery is determined to be longer than a first preset value, the residual electric quantity of the power battery is determined to be larger than a second preset value, the whole vehicle high-voltage system is in a normal state, and the whole vehicle maintenance state is not maintained, the storage battery charging mode is started, a third control signal is sent to the storage battery sensor, and the third control signal is used for controlling the storage battery sensor to enter a wake-up enabling mode;
and step S203, when the service life of the storage battery is determined to be less than a first preset value, the residual electric quantity of the power battery is determined to be less than a second preset value, the electric fault exists in the high-voltage system of the whole vehicle, or the maintenance state of the whole vehicle is determined to be maintenance, forbidding to enter a storage battery charging mode, and sending a fourth control signal to the storage battery sensor, wherein the fourth control signal is used for controlling the storage battery sensor to forbid entering a wake-up enabling mode.
In the embodiment of the invention, after the battery life parameter and the residual electric quantity of the storage battery are obtained and before charging is started, the vehicle control unit can obtain the state of a vehicle high-voltage system, the maintenance state of the vehicle detected by the vehicle body control unit and the residual electric quantity of the power battery detected by the battery management system, and judge whether the vehicle can safely charge the storage battery at the moment according to the service life of the storage battery, the state of the vehicle high-voltage system, the maintenance state of the vehicle and the residual electric quantity of the power battery. When the service life of the storage battery is determined to be smaller than a first preset value, namely the service life of the storage battery reaches a limit value, if the storage battery is damaged by charging at the moment, the storage battery is forbidden to enter a storage battery charging mode, so that the damage to the storage battery is avoided, and unnecessary energy loss is avoided; when the power-off fault of the whole vehicle high-voltage system is determined, if the whole vehicle high-voltage power-on is controlled at the moment, the whole vehicle high-voltage system can be continuously in a power-on state due to the fact that the power cannot be off, the direct-current converter can continuously charge the storage battery, energy loss is caused, the service life of the high-voltage component is consumed, and the fact that the storage battery charging mode is forbidden is beneficial to avoiding damage to the storage battery and the high-voltage component and avoiding unnecessary energy loss; when the overhaul state of the whole vehicle is determined to be overhaul, if the high-voltage electrification of the whole vehicle is controlled at the moment, the high-voltage component which is being overhauled is electrified, the high-voltage component which is being overhauled is impacted, and the safety of maintainers is threatened, the storage battery charging mode is forbidden to be entered at the moment, so that the safety of the high-voltage component which is being overhauled and the safety of the maintainers are protected, wherein when the vehicle body controller detects that the front hatch cover is not opened, the overhaul state of the whole vehicle is determined to; when the electric quantity of the power battery is determined to be lower than the second preset value, the fact that the power battery does not have sufficient electric quantity to charge the storage battery is determined, and the fact that the storage battery is forbidden to enter the storage battery charging mode is beneficial to avoiding adverse effects of power shortage of the power battery on the service life of the power battery and normal running of a vehicle. Preferably, when the battery charging mode is prohibited, the fourth control signal for prohibiting entering the wake-up enabling mode is sent to the battery sensor, so that energy loss caused by waking up the vehicle controller by the battery sensor when the vehicle controller is in the sleep mode is avoided.
When the service life of the storage battery is determined to be longer than the first preset value, the residual electric quantity of the power battery is greater than the second preset value, the whole vehicle high-voltage system is in a normal state, and the maintenance state of the whole vehicle is not maintained, the storage battery is charged, the storage battery cannot be damaged, the power battery is charged for the storage battery, the normal operation of the vehicle cannot be influenced, the safety risk to other high-voltage components and maintenance personnel does not exist, the storage battery is charged at the moment, the storage battery charging mode is convenient to charge when the residual electric quantity of the storage battery is smaller than a. Meanwhile, a third control signal for controlling the storage battery sensor to enter the awakening enabling mode is sent to the storage battery sensor, so that the storage battery sensor can awaken the whole vehicle controller and enter the storage battery charging mode when detecting that the residual electric quantity of the storage battery is smaller than the charging starting threshold value when the whole vehicle controller is in a dormant state. The normal operation of a vehicle low-voltage system is favorably ensured, and the influence of the over-discharge of the storage battery on the service life of the storage battery is avoided.
Referring to fig. 3, fig. 3 is a graph of a corresponding relationship between the service life of the storage battery and the charge start-stop threshold, where an abscissa is the service life of the storage battery, an ordinate is the remaining capacity of the storage battery, a dotted line is a curve corresponding to the charge stop threshold and the service life of the storage battery, a solid line is a curve corresponding to the charge start threshold and the service life of the storage battery, X is the limit value for determining the service life of the storage battery, Y is a value of the service life of the storage battery actually received by the vehicle controller, and the vehicle controller can obtain the corresponding charge start threshold and charge stop threshold according to the actually received value of the. It should be noted that fig. 3 is a schematic diagram of an embodiment provided only for clearly understanding the technical solution of the present invention to those skilled in the art, and preferably, in order to ensure the accuracy of identification, there is no intersection point between the solid line and the dotted line. Alternatively, a person skilled in the art may make an adaptation to fig. 3 or replace it with another form such as a relational table based on the present invention, and the invention also falls into the protection scope of the present invention.
Referring to fig. 4, preferably, the control method as described above further includes, after the dc converter is switched to the operating state:
step S401, detecting running mode information of a whole vehicle high-voltage system;
step S402, when the operation mode information is detected to be that the battery charging mode is forbidden to be entered, the battery charging mode is exited;
step S403, or, when an operation mode request other than the battery charging mode is detected, switching to the operation mode corresponding to the operation mode request.
In the embodiment of the invention, the vehicle controller can detect the operation mode information of the vehicle high-voltage system in real time during the charging process of the storage battery, and when the operation mode information is detected as that the vehicle is not allowed to enter the storage battery charging mode, the current vehicle state is not suitable for charging the storage battery, and the exit from the storage battery charging mode is favorable for avoiding the damage to other parts or personnel of the vehicle caused by the charging of the storage battery; when an operation mode request different from the storage battery charging mode is detected, the fact that the user has other high-voltage requirements is indicated, the operation mode corresponding to the operation mode request is switched to, the high-voltage requirements of the user are met, meanwhile, the storage battery is charged, and the electric quantity state of the storage battery is guaranteed.
Specifically, after step S102 of obtaining a charge start threshold and a charge stop threshold corresponding to the life of the storage battery according to the life of the storage battery and a preset correspondence between the life of the storage battery and the charge start-stop threshold, the control method further includes:
and sending the charging starting threshold value to the storage battery sensor.
In the embodiment of the invention, the vehicle control unit sends the charging start threshold value obtained according to the service life of the storage battery to the storage battery sensor, so that the storage battery sensor can compare the detected residual electric quantity of the storage battery with the charging start threshold value, and further, when the vehicle control unit is in a dormant state, whether the storage battery needs to be charged is determined in one step, and whether the vehicle control unit is awakened or not and the step of charging the storage battery is implemented conveniently.
Referring to fig. 5, further, the control method as described above, after the step of sending the charge starting threshold to the battery sensor, further includes:
step S501, awakening when receiving a first awakening signal sent by a storage battery sensor, wherein the awakening signal is generated when the storage battery sensor receives a third control signal and detects that the residual electric quantity of a storage battery is smaller than a charging starting threshold value;
and S502, sending a second wake-up signal to the whole vehicle high-voltage system, and entering the step of acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor, wherein the second wake-up signal is used for waking up the whole vehicle high-voltage system.
In the embodiment of the invention, when the storage battery detects that the residual electric quantity of the storage battery is less than the charging starting threshold and receives a third control signal sent by the vehicle control unit, the storage battery is determined to be charged, at the moment, a first wake-up signal is sent to the vehicle control unit, the vehicle control unit wakes up according to the first wake-up signal and sends a second wake-up signal to the vehicle high-voltage system, so that preparation work is made for subsequently charging the storage battery, the situation that the storage battery is in an electric quantity interval corresponding to the service life of the storage battery due to the fact that the residual electric quantity of the storage battery is less than the charging starting threshold but the vehicle control unit and the vehicle high-voltage system are still in a dormant state and cannot be charged is avoided, and the residual electric quantity of the storage battery is.
Referring to fig. 6, another preferred embodiment of the present invention also provides a vehicle control unit, including:
the first processing module 601 is configured to obtain a battery life and a remaining battery capacity detected by a battery sensor;
the second processing module 602 is configured to obtain a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and a preset correspondence between the service life of the storage battery and the charging start/stop threshold;
the third processing module 603 is configured to compare the remaining battery capacity with a charge starting threshold to obtain a comparison result;
and a fourth processing module 604, configured to control the entire vehicle high-voltage system to be powered on and send a first control signal to the dc converter when the comparison result indicates that the remaining battery power is less than the charge start threshold, where the first control signal is used to control the dc converter to switch to the operating state.
Further, the vehicle control unit as described above further includes:
and the fifth processing module is used for sending a second control signal to the direct current converter when the acquired residual electric quantity of the storage battery is larger than the charging stop threshold value, wherein the second control signal is used for controlling the direct current converter to be switched to the dormant state.
Preferably, the vehicle control unit as described above further includes:
the acquisition module is used for acquiring the state of a high-voltage system of the whole vehicle, the overhaul state of the whole vehicle detected by the vehicle body controller and the residual electric quantity of the power battery detected by the battery management system;
the sixth processing module is used for entering a storage battery charging mode and sending a third control signal to the storage battery sensor when the service life of the storage battery is determined to be greater than the first preset value, the residual electric quantity of the power battery is determined to be greater than the second preset value, the whole vehicle high-voltage system is in a normal state and the whole vehicle maintenance state is not maintained, and the third control signal is used for controlling the storage battery sensor to enter a wake-up enabling mode;
and the seventh processing module is used for forbidding to enter a storage battery charging mode and sending a fourth control signal to the storage battery sensor when the service life of the storage battery is determined to be smaller than the first preset value, the residual electric quantity of the power battery is determined to be smaller than the second preset value, and the electric fault exists in the whole vehicle high-voltage system or the whole vehicle maintenance state is maintenance, and the fourth control signal is used for controlling the storage battery sensor to forbid to enter a wake-up enabling mode.
Preferably, the vehicle control unit as described above further includes:
the detection module is used for detecting the operation mode information of the whole vehicle high-voltage system;
the eighth processing module is used for exiting the storage battery charging mode when the operation mode information is detected as forbidding to enter the storage battery charging mode;
alternatively, when an operation mode request different from the battery charging mode is detected, the operation mode corresponding to the operation mode request is switched.
Specifically, the vehicle control unit as described above further includes:
and the sending module is used for sending the charging starting threshold value to the storage battery sensor.
Further, the vehicle control unit as described above further includes:
the ninth processing module is used for waking up when receiving a first wake-up signal sent by the storage battery sensor, wherein the wake-up signal is generated when the storage battery sensor receives a third control signal and detects that the residual electric quantity of the storage battery is smaller than a charging starting threshold value;
and the tenth processing module is used for sending a second wake-up signal to the whole vehicle high-voltage system and entering the step of acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor, wherein the second wake-up signal is used for waking up the whole vehicle high-voltage system.
The embodiment of the vehicle control unit is the vehicle control unit corresponding to the embodiment of the control method applied to the charging of the storage battery of the vehicle control unit, and all implementation means in the embodiment of the method are suitable for the embodiment of the vehicle control unit, so that the same technical effect can be achieved.
Referring to fig. 7, still another preferred embodiment of the present invention also provides a battery charge control system including:
the system comprises a storage battery 1, a storage battery sensor 2, a direct current converter 3, a battery management system 4, a power battery 5, a vehicle body controller 6 and the vehicle control unit 7;
the storage battery sensor 2 is used for detecting the service life of the storage battery 1 and the residual capacity of the storage battery;
the direct current converter 3 is connected with the storage battery 1 and the power battery 5;
the battery management system 4 is used for detecting the power battery residual capacity of the power battery 5;
the vehicle control unit 7 is connected to the vehicle body controller 6, the battery management system 4, the dc converter 3 and the battery sensor 2, and the vehicle control unit 7 stores a computer program, and when the computer program is executed, the steps of the control method for charging the battery 1 are implemented.
In the embodiment of the invention, the vehicle control unit 7 is respectively connected with the vehicle body controller 6, the battery management system 4, the dc converter 3 and the storage battery sensor 2, and the vehicle control unit 7 can implement the steps of the control method for charging the storage battery 1, so that the storage battery charging control system can determine the charging start threshold and the charging stop threshold of the storage battery 1 according to the service life of the storage battery 1, further control the charging process of the storage battery 1, and is beneficial to ensuring the storage battery 1 to be in the optimal electric quantity state, further ensuring the service life of the storage battery 1 and reducing unnecessary energy waste. Meanwhile, the state of the vehicle can be determined before whether the charging is carried out or not, and the safety of the vehicle and personnel can be guaranteed.
Referring to fig. 8, specifically, as in the battery charge control system described above, the battery sensor 2 is connected to the vehicle control unit 7 through the vehicle body controller 6.
In a specific embodiment of the present invention, the storage battery sensor 2 is connected to the vehicle controller 7 through the vehicle body controller 6, so that data and signals sent from the storage battery sensor 2 to the vehicle controller 7 need to be sent to the vehicle body controller 6 through connection with the serial communication network of the vehicle body controller 6, and are forwarded to the vehicle controller 7 through the vehicle body controller 6; similarly, the data and signals sent by the vehicle control unit 7 to the battery sensor 2 also need to be forwarded by the vehicle body controller 6. The number of the connection ports of the vehicle control unit 7 is reduced.
Still another preferred embodiment of the present invention also provides a vehicle including: the battery charging control system as described above.
In the embodiment of the invention, the vehicle comprises the storage battery charging control system, so that the vehicle can determine the charging start threshold and the charging stop threshold of the storage battery according to the service life of the storage battery, further control the charging process of the storage battery, and be beneficial to ensuring that the storage battery is in the optimal electric quantity state, further ensure the service life of the storage battery and reduce unnecessary energy waste. Meanwhile, the state of the vehicle can be determined before whether the charging is carried out or not, and the safety of the vehicle and personnel can be guaranteed.
It should be noted that, because the factor affecting the service life of the storage battery is mainly the state of health of the storage battery, the service life of the storage battery described herein can be replaced by the state of health of the storage battery, and the above technical solutions can also be implemented.
Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A control method for charging a storage battery is applied to a vehicle control unit, and is characterized by comprising the following steps:
acquiring the service life of a storage battery and the residual electric quantity of the storage battery detected by a storage battery sensor;
obtaining a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and a preset corresponding relation between the service life of the storage battery and the charging start-stop threshold;
comparing the residual electric quantity of the storage battery with the charging starting threshold value to obtain a comparison result;
and when the comparison result shows that the residual electric quantity of the storage battery is smaller than the charging starting threshold value, controlling the whole vehicle high-voltage system to be electrified, and sending a first control signal to the direct current converter, wherein the first control signal is used for controlling the direct current converter to be switched to a working state.
2. The control method of claim 1, further comprising, after the dc converter is switched to the operating state:
and when the acquired residual electric quantity of the storage battery is larger than the charging stop threshold value, sending a second control signal to the direct current converter, wherein the second control signal is used for controlling the direct current converter to be switched to a dormant state.
3. The control method according to claim 1, wherein after the step of acquiring the battery life parameter and the remaining battery capacity detected by the battery sensor, the method further comprises:
acquiring the state of the whole vehicle high-voltage system, the whole vehicle overhaul state detected by a vehicle body controller and the residual electric quantity of the power battery detected by a battery management system;
when the service life of the storage battery is determined to be longer than a first preset value, the residual electric quantity of the power battery is determined to be larger than a second preset value, the whole vehicle high-voltage system is in a normal state, and the maintenance state of the whole vehicle is not maintained, the storage battery charging mode is started, and a third control signal is sent to the storage battery sensor and used for controlling the storage battery sensor to enter a wake-up enabling mode;
and when the service life of the storage battery is determined to be smaller than the first preset value, the residual electric quantity of the power battery is determined to be smaller than the second preset value, the whole vehicle high-voltage system has an electric fault or the whole vehicle maintenance state is maintenance, forbidding to enter the storage battery charging mode and sending a fourth control signal to the storage battery sensor, wherein the fourth control signal is used for controlling the storage battery sensor to forbid entering the awakening enabling mode.
4. The control method of claim 3, further comprising, after the DC converter is switched to the operating state:
detecting the running mode information of the whole vehicle high-voltage system;
when the operation mode information is detected to be forbidden to enter the storage battery charging mode, exiting the storage battery charging mode;
or when an operation mode request different from the battery charging mode is detected, switching to an operation mode corresponding to the operation mode request.
5. The control method according to claim 3, wherein after the step of obtaining the charge start threshold and the charge stop threshold corresponding to the battery life according to the battery life and a preset correspondence between the battery life and the charge start-stop threshold, the method further comprises:
and sending the charging starting threshold value to the storage battery sensor.
6. The control method of claim 5, further comprising, after the step of sending the charge initiation threshold to the battery sensor:
awakening when receiving a first awakening signal sent by the storage battery sensor, wherein the awakening signal is generated when the storage battery sensor receives the third control signal and detects that the residual electric quantity of the storage battery is smaller than the charging starting threshold value;
and sending a second awakening signal to the whole vehicle high-voltage system, and entering the step of acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor, wherein the second awakening signal is used for awakening the whole vehicle high-voltage system.
7. A vehicle control unit, comprising:
the first processing module is used for acquiring the service life of the storage battery and the residual electric quantity of the storage battery detected by the storage battery sensor;
the second processing module is used for obtaining a charging start threshold and a charging stop threshold corresponding to the service life of the storage battery according to the service life of the storage battery and a preset corresponding relation between the service life of the storage battery and the charging start-stop threshold;
the third processing module is used for comparing the residual electric quantity of the storage battery with the charging starting threshold value to obtain a comparison result;
and the fourth processing module is used for controlling the whole vehicle high-voltage system to be powered on and sending a first control signal to the direct current converter when the comparison result shows that the residual electric quantity of the storage battery is smaller than the charging starting threshold value, wherein the first control signal is used for controlling the direct current converter to be switched to a working state.
8. A battery charge control system, comprising:
the vehicle comprises a storage battery, a storage battery sensor, a direct current converter, a battery management system, a power battery, a vehicle body controller and the vehicle control unit according to claim 7;
the storage battery sensor is used for detecting the service life of a storage battery and the residual capacity of the storage battery;
the direct current converter is connected with the storage battery and the power battery;
the battery management system is used for detecting the residual electric quantity of the power battery;
the vehicle control unit is connected with the vehicle body controller, the battery management system, the dc converter and the battery sensor, respectively, and a computer program is stored in the vehicle control unit, and when the computer program is executed, the steps of the control method for charging the battery according to any one of claims 1 to 6 are implemented.
9. The battery charge control system of claim 8, wherein the battery sensor is coupled to the vehicle control unit via the vehicle body controller.
10. A vehicle, characterized by comprising: the battery charge control system according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516591.0A CN112078367B (en) | 2019-06-14 | 2019-06-14 | Storage battery charging control method, vehicle control unit, system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516591.0A CN112078367B (en) | 2019-06-14 | 2019-06-14 | Storage battery charging control method, vehicle control unit, system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112078367A true CN112078367A (en) | 2020-12-15 |
| CN112078367B CN112078367B (en) | 2022-02-25 |
Family
ID=73734035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910516591.0A Active CN112078367B (en) | 2019-06-14 | 2019-06-14 | Storage battery charging control method, vehicle control unit, system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112078367B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281670A (en) * | 2021-05-14 | 2021-08-20 | 北京福田戴姆勒汽车有限公司 | Monitoring system and method for vehicle storage battery and vehicle |
| CN113635847A (en) * | 2021-07-14 | 2021-11-12 | 江铃汽车股份有限公司 | Storage battery electric quantity compensation method and device, storage medium and vehicle gateway |
| CN114560067A (en) * | 2022-03-11 | 2022-05-31 | 广东技术师范大学 | Intelligent new energy ship power platform system and control method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003031267A (en) * | 2001-05-11 | 2003-01-31 | Toyota Motor Corp | Refresh charging control device |
| JP2013192384A (en) * | 2012-03-14 | 2013-09-26 | Toyota Industries Corp | Charging method and charging device |
| CN104578319A (en) * | 2015-01-29 | 2015-04-29 | 北京汽车股份有限公司 | Battery charging control method and device and automobile |
| CN104953674A (en) * | 2015-07-10 | 2015-09-30 | 北京交通大学 | Charge-discharge control system and method capable of prolonging service life of energy-storage battery |
| CN107253448A (en) * | 2017-06-07 | 2017-10-17 | 北京新能源汽车股份有限公司 | A kind of charge control method of low tension battery, device and automobile |
| CN109017309A (en) * | 2018-06-29 | 2018-12-18 | 北京新能源汽车股份有限公司 | A kind of control system for accumulators, battery system and vehicle for electric car |
| CN109080460A (en) * | 2018-07-06 | 2018-12-25 | 北京长城华冠汽车科技股份有限公司 | Low tension battery charge control method and device |
| CN109494420A (en) * | 2017-09-12 | 2019-03-19 | 北京奔驰汽车有限公司 | A method of extending the power battery service life |
| CN109671997A (en) * | 2017-10-13 | 2019-04-23 | 神讯电脑(昆山)有限公司 | Electronic device and charging method |
-
2019
- 2019-06-14 CN CN201910516591.0A patent/CN112078367B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003031267A (en) * | 2001-05-11 | 2003-01-31 | Toyota Motor Corp | Refresh charging control device |
| JP2013192384A (en) * | 2012-03-14 | 2013-09-26 | Toyota Industries Corp | Charging method and charging device |
| CN104578319A (en) * | 2015-01-29 | 2015-04-29 | 北京汽车股份有限公司 | Battery charging control method and device and automobile |
| CN104953674A (en) * | 2015-07-10 | 2015-09-30 | 北京交通大学 | Charge-discharge control system and method capable of prolonging service life of energy-storage battery |
| CN107253448A (en) * | 2017-06-07 | 2017-10-17 | 北京新能源汽车股份有限公司 | A kind of charge control method of low tension battery, device and automobile |
| CN109494420A (en) * | 2017-09-12 | 2019-03-19 | 北京奔驰汽车有限公司 | A method of extending the power battery service life |
| CN109671997A (en) * | 2017-10-13 | 2019-04-23 | 神讯电脑(昆山)有限公司 | Electronic device and charging method |
| CN109017309A (en) * | 2018-06-29 | 2018-12-18 | 北京新能源汽车股份有限公司 | A kind of control system for accumulators, battery system and vehicle for electric car |
| CN109080460A (en) * | 2018-07-06 | 2018-12-25 | 北京长城华冠汽车科技股份有限公司 | Low tension battery charge control method and device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281670A (en) * | 2021-05-14 | 2021-08-20 | 北京福田戴姆勒汽车有限公司 | Monitoring system and method for vehicle storage battery and vehicle |
| CN113281670B (en) * | 2021-05-14 | 2023-08-15 | 北京福田戴姆勒汽车有限公司 | Monitoring system and method for vehicle storage battery and vehicle |
| CN113635847A (en) * | 2021-07-14 | 2021-11-12 | 江铃汽车股份有限公司 | Storage battery electric quantity compensation method and device, storage medium and vehicle gateway |
| CN114560067A (en) * | 2022-03-11 | 2022-05-31 | 广东技术师范大学 | Intelligent new energy ship power platform system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112078367B (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108081983B (en) | Control system and control method for preventing storage battery from being lack of power | |
| CN112078367B (en) | Storage battery charging control method, vehicle control unit, system and vehicle | |
| CN111452742A (en) | Intelligent power management method and system for storage battery of pure electric vehicle | |
| CN108437835B (en) | Power supply system | |
| CN109703367A (en) | A-battery preventing electric loss method and system after a kind of parking of new energy vehicle | |
| CN103986209A (en) | Automotive storage battery charging system and method | |
| JP6486558B2 (en) | Battery pack charge control apparatus and method | |
| CN113147503B (en) | Power management method for electric vehicle | |
| KR20180057187A (en) | Discharge preventing device and method of auxiliary battery | |
| CN113561918B (en) | Intelligent power supplementing method and system for storage battery of electric automobile | |
| CN111497768A (en) | Vehicle auxiliary power supply method and system based on super capacitor | |
| CN111361447A (en) | Vehicle battery management system, vehicle and vehicle battery management method | |
| CN111231671A (en) | Insufficient voltage prevention system for storage battery of electric automobile | |
| CN115133625A (en) | Charging control method, device, equipment and storage medium | |
| CN211809172U (en) | Vehicle battery management system and vehicle | |
| CN113991820A (en) | Control method and energy storage and power supply system | |
| CN102035222B (en) | Control system and control method for DC/DC converter | |
| CN211032213U (en) | Direct current fills electric pile low-power consumption control system | |
| CN113507156A (en) | Energy storage BMS dormancy and awakening circuit | |
| CN112977064A (en) | Low-power charging control system and control method for low-voltage storage battery | |
| CN214112472U (en) | Storage battery management device and system | |
| CN218702730U (en) | Battery charging system and vehicle | |
| CN114228646B (en) | Electric supplementing system and method | |
| CN116470628A (en) | Hybrid electric vehicle storage battery power shortage compensation control method | |
| CN220700900U (en) | Vehicle electricity shortage processing system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |