CN113665433A - Method and device for correcting state of charge parameters and operating machine - Google Patents

Method and device for correcting state of charge parameters and operating machine Download PDF

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Publication number
CN113665433A
CN113665433A CN202110996882.1A CN202110996882A CN113665433A CN 113665433 A CN113665433 A CN 113665433A CN 202110996882 A CN202110996882 A CN 202110996882A CN 113665433 A CN113665433 A CN 113665433A
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state
correction
charge
threshold
charging power
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CN113665433B (en
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李敏
陈灿
刘绍配
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Sany Automobile Hoisting Machinery Co Ltd
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Sany Automobile Hoisting Machinery Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The invention provides a method and a device for correcting a state of charge parameter and an operating machine, wherein the method for correcting the state of charge parameter comprises the following steps: receiving state of charge non-beacon information; responding to the information of the unreliable mark of the charge state, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor within a target time period threshold value; determining a correction range threshold value of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system; and controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameters so as to enable the real-time state of charge parameters to be within the correction range threshold range and correct the target state of charge parameters of the battery. The method, the device and the operation machine for correcting the state of charge parameters can reduce errors in monitoring the state of charge parameters, improve detection precision, accurately present real-time electric quantity of a battery and prolong service life of the battery.

Description

Method and device for correcting state of charge parameters and operating machine
Technical Field
The invention relates to the technical field of operating machinery, in particular to a method and a device for correcting a state of charge parameter and operating machinery.
Background
With the continuous development of new energy technology, the electric operation of various vehicles and operation machines has been gradually popularized, the electric operation of the operation machine means that electric energy is supplied to operation components of the operation machine, the operation machine converts the electric energy into mechanical energy to realize operation, the electric energy drive has great advantages in emission, noise and performance compared with the transmission fuel drive, and in the use process of the operation machine, the charge state parameters of a battery need to be monitored in real time to charge the battery in time.
However, in the process of power-on operation of the operation machine, a long-term non-full charge may occur, which may cause errors in the monitored state-of-charge parameters, poor accuracy, inability to accurately reflect the real-time electric quantity of the battery, and erroneous judgment, and a reduction in the battery life.
Disclosure of Invention
The invention provides a method and a device for correcting a state of charge parameter and an operation machine, which are used for solving the defects that the state of charge parameter monitored in the prior art has errors, is poor in precision, cannot accurately reflect the real-time electric quantity of a battery, can cause misjudgment, and reduces the service life of the battery, so that the errors of monitoring the state of charge parameter are reduced, the detection precision is improved, the real-time electric quantity of the battery can be accurately presented, and the service life of the battery is prolonged.
The invention provides a charge state parameter correction method, which comprises the following steps: receiving state of charge non-beacon information; responding to the charge state non-beaconing sign information, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor within a target time period threshold value; determining a correction range threshold value of a state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and a battery system capacity parameter; and controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameters, so that the real-time state of charge parameters are within the correction range threshold, and correcting the target state of charge parameters of the battery.
According to the method for correcting the state of charge parameters provided by the invention, the step of determining the correction range threshold of the state of charge parameters based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameters of the battery system comprises the following steps: determining a difference value between the maximum charging power of the vehicle-mounted charger and the average required power of the motor; and determining a correction range threshold of the state of charge parameter based on the comparison of the difference value and the capacity parameter of the battery system.
According to the method for correcting the state of charge parameters provided by the invention, the step of determining the correction range threshold of the state of charge parameters based on the comparison between the difference and the capacity parameters of the battery system comprises the following steps: when the difference value is less than one third of the capacity parameter of the battery system, the correction range threshold value of the state of charge parameter is from a first correction threshold value to a second correction threshold value, and the second correction threshold value is greater than the first correction threshold value; or when the difference is greater than one third of the battery system capacity parameter, the correction range threshold of the state of charge parameter is a third correction threshold to a fourth correction threshold, the third correction threshold is greater than the second correction threshold, and the fourth correction threshold is greater than the third correction threshold.
According to the method for correcting the state of charge parameters provided by the invention, when the difference value is less than one third of the capacity parameter of the battery system, the target charging power of the vehicle-mounted charger is controlled based on the correction range threshold value of the state of charge parameters, so that the real-time state of charge parameters are within the correction range threshold value range, and the method comprises the following steps: if the initial state of charge parameter is smaller than a first correction threshold, the target charging power is larger than 0, and if the current state of charge parameter is larger than a second correction threshold, the target charging power is 0; or, if the initial state of charge parameter is greater than a second correction threshold, the target charging power is 0, and if the current state of charge parameter is less than a first correction threshold, the target charging power is greater than 0.
According to the method for correcting the state of charge parameters provided by the invention, when the difference value is less than one third of the capacity parameter of the battery system, the target charging power of the vehicle-mounted charger is controlled based on the correction range threshold value of the state of charge parameters, so that the real-time state of charge parameters are within the correction range threshold value range, and the method comprises the following steps: if the real-time state of charge parameter is greater than the first correction threshold and less than the second correction threshold, and the original charging power is not 0, the target charging power is greater than 0, if the real-time state of charge parameter is less than the first correction threshold, the target charging power is greater than 0, and if the real-time state of charge parameter is greater than the second correction threshold, the target charging power is 0; or, if the real-time state of charge parameter is greater than the first correction threshold and smaller than the second correction threshold, and the original charging power is 0, the target charging power is 0, if the real-time state of charge parameter is smaller than the first correction threshold, the target charging power is greater than 0, and if the real-time state of charge parameter is greater than the second correction threshold, the target charging power is 0.
According to the method for correcting the state of charge parameters provided by the invention, when the difference value is greater than one third of the capacity parameter of the battery system, the target charging power of the vehicle-mounted charger is controlled based on the correction range threshold value of the state of charge parameters, so that the real-time state of charge parameters are within the correction range threshold value range, and the method comprises the following steps: if the real-time state of charge parameter is smaller than a fifth correction threshold, the target charging power is the maximum charging power of the vehicle-mounted charger, and the fifth correction threshold is smaller than the third correction threshold and larger than the second correction threshold; or, if the real-time state of charge parameter is greater than the fifth correction threshold and smaller than the fourth correction threshold, the target charging power is the maximum charging power of the battery; or, if the real-time state of charge parameter is greater than the fourth correction threshold, the target charging power is 0, and if the real-time state of charge parameter is less than the third correction threshold, the target charging power is the maximum charging power of the battery.
The present invention also provides a state of charge parameter correction device, including: the receiving module is used for receiving the information of the non-beacon mark of the charge state; the acquisition module is used for responding to the charge state non-beacon information, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor in a target time period threshold; the determining module is used for determining a correction range threshold of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system; and the control module is used for controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameter so as to enable the real-time state of charge parameter to be within the correction range threshold range and correct the target state of charge parameter of the battery.
The present invention also provides a working machine including: the device comprises a machine body and any one of the state of charge parameter correction devices, wherein the state of charge parameter correction device is installed on the machine body.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of any one of the above state of charge parameter correction methods.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the above-described state of charge parameter correction methods.
According to the state of charge parameter correction method, the state of charge parameter correction device and the operation machine, after the state of charge non-beacon information is received, the correction range threshold of the state of charge parameter is determined, the real-time state of charge parameter is adjusted to be within the correction range threshold, the target state of charge parameter of the battery is corrected, the error of monitoring the state of charge parameter can be reduced, the detection precision is improved, the real-time electric quantity of the battery can be accurately presented, and the service life of the battery is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for correcting a state of charge parameter according to the present invention;
FIG. 2 is a schematic illustration of a power supply system for a work machine according to the present disclosure;
FIG. 3 is a block diagram of a method for correcting the state of charge parameter according to the present invention;
FIG. 4 is a schematic structural diagram of a state of charge parameter correction apparatus provided in the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a state of charge parameter correction method, device and working machine according to the present invention with reference to fig. 1 to 5.
As shown in fig. 1, the present invention provides a method for correcting a state of charge parameter, which includes: as follows from step 110 to step 140.
Step 110, receiving the state of charge non-beakable beacon information.
It can be understood that, as shown in fig. 2, the electrically driven working machine may have a Battery Management System (BMS), an on-board battery charger (OBC), a Vehicle Control Unit (VCU) and a Motor Controller (MCU), wherein the battery management system, the on-board battery charger and the motor controller are all electrically connected to the vehicle control unit, the vehicle control unit is a logic control center of the working machine and is capable of performing logic operation, the battery management system is electrically connected to a battery, the motor controller is electrically connected to a motor, the battery is capable of supplying power to the motor, and the motor is driven to work, the on-board battery charger may be connected to an external power source, such as 220V or 380V power frequency ac, the on-board battery charger may charge the battery, and may also supply power to the motor to drive the motor to work.
The battery management system is electrically connected with the battery and can manage input power of the battery in a charging state and output power of the battery in a power supply state.
The mode of connecting the vehicle-mounted charger with an external power supply, supplying power to the motor through the vehicle-mounted charger, and driving the motor to operate is called an electricity-plugging operation mode.
The state of charge (SOC) of a battery is used to indicate a ratio of a remaining capacity of the battery after being used for a certain period of time or left unused for a long time to a capacity of a full charge state, and is usually expressed by a percentage, and the SOC ranges from 0 to 100%, indicates that the battery is completely discharged when the SOC is 0, and indicates that the battery is completely charged when the SOC is 100%.
In order to solve the anxiety of endurance of the operation machine, researchers put forward a scheme of power-on operation. However, this scheme has a problem that the SOC accuracy of the battery system is poor because the full charge is not performed for a long period of time. Researchers have employed regular maintenance and training of the operators to address these problems. Namely, the correction of the SOC of the battery system is realized by regular maintenance or by regular full charge of the battery by an operator. These techniques can solve the problem of the battery system that the SOC accuracy is poor, but depend excessively on regular maintenance by an operator or regular full charging of the battery system. If the operator does not regularly maintain or regularly fully discharge the battery system, the problem that the battery system has low SOC accuracy due to long-term non-full discharge cannot be realized under long-term ground insertion operation conditions.
Here, the vehicle control unit may receive state of charge non-annunciatable flag information sent by the battery management system, where the state of charge non-annunciatable flag information is generated by the battery management system in a process of detecting the SOC of the battery and may indicate that the state of charge parameter of the battery is inaccurate.
The soc unreliable flag information may be soc unreliable flag bits, which are generated by the battery management system during self-checking of the battery, and when the soc unreliable flag information is generated by the battery management system, it indicates that the soc parameters of the battery are unreliable.
And 120, responding to the information of the unreliable mark of the charge state, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average required power of the motor within a target time period threshold value.
It can be understood that, after receiving the state of charge non-beaconing information, the vehicle controller may obtain the maximum charging power of the vehicle-mounted charger from the vehicle-mounted charger, and obtain the average required power of the motor within the target time period threshold from the motor controller, where the target time period threshold may be a preset working time period, for example, 1 hour, and the average required power of the motor is the average power supply power required when the motor normally works within the target time period threshold.
And step 130, determining a correction range threshold value of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system.
It can be understood that the vehicle control unit may determine the correction range threshold of the state of charge parameter according to the maximum charging power of the vehicle-mounted charger, the average required power of the motor, and the battery system capacity parameter.
For example, the difference operation, or division operation, or other operations may be performed on the maximum charging power of the vehicle-mounted charger and the average required power of the motor to obtain an operation result, and the operation result may be compared with the capacity parameter of the battery system to determine the correction range threshold of the state of charge parameter.
The correction range threshold of the state of charge parameter means that the state of charge parameter of the battery is adjusted by controlling a vehicle-mounted charger to charge the battery, so that the state of charge parameter can be within the correction range threshold, when the state of charge parameter is within the correction range threshold, the state of charge parameter can be conveniently corrected at the moment, that is, when the state of charge parameter is within the correction range threshold, a physical parameter comparison rule on which the state of charge parameter depends is determined, for example, the state of charge parameter and the output voltage of the battery are in a correlation relationship, when the state of charge parameter is within the correction range threshold, the corresponding relationship between the state of charge parameter and the output voltage of the battery is more obvious, for example, the one-to-one correspondence relationship can be presented, and then the obtained state of charge parameter can be more accurate according to the output voltage of the battery.
As shown in fig. 3, in some embodiments, the vehicle control unit may have two correction modes, which may include a static SOC correction mode and a full SOC correction mode.
In the static SOC correction mode, the correction range threshold is near the middle value of the electric quantity of the battery, such as 60% to 65%, in the full-charge SOC correction mode, the correction range threshold is near the full-charge value of the electric quantity of the battery, such as 95% to 100%.
And step 140, controlling the target charging power of the vehicle-mounted charger based on the correction range threshold value and the initial state of charge parameter of the state of charge parameter, so that the real-time state of charge parameter is in the correction range threshold value range, and correcting the target state of charge parameter of the battery.
It can be understood that, after the correction range threshold of the state of charge parameter is determined, the target charging power of the vehicle-mounted charger may be controlled by combining the initial state of charge parameter, that is, the output power of the vehicle-mounted charger is controlled to charge the battery, so that the real-time state of charge parameter of the battery is changed, and the real-time state of charge parameter can fall within the range of the correction range threshold.
When the real-time state of charge parameter falls within the range of the correction range threshold, the state of charge parameter of the battery can be detected, and the detected state of charge parameter of the battery is called a target state of charge parameter.
When the real-time state of charge parameter falls into the range of the correction range threshold, the real-time output voltage of the battery can be read, the real-time state of charge parameter is calculated according to the output voltage, the real-time state of charge parameter corresponding to the real-time output voltage at the moment is used as the target state of charge parameter, the target state of charge parameter obtained in this way is an accurate reading, and therefore the correction of the state of charge parameter of the battery is achieved.
According to the state of charge parameter correction method provided by the invention, after the state of charge non-beacon information is received, the correction range threshold of the state of charge parameter is determined, the real-time state of charge parameter is adjusted to be within the range of the correction range threshold, the target state of charge parameter of the battery is corrected, the error of monitoring the state of charge parameter can be reduced, the detection precision is improved, the real-time electric quantity of the battery can be accurately presented, and the service life of the battery is prolonged.
As shown in fig. 3, in some embodiments, the determining 130 a correction range threshold of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor, and the battery system capacity parameter includes: determining a difference value between the maximum charging power of the vehicle-mounted charger and the average required power of the motor; a revised range threshold for the state of charge parameter is determined based on the comparison of the difference with the battery system capacity parameter.
It can be understood that, after the maximum charging power of the vehicle-mounted charger, the average required power of the motor, and the capacity parameter of the battery system are obtained, the maximum charging power of the vehicle-mounted charger and the average required power of the motor may be subtracted from the maximum charging power of the vehicle-mounted charger to obtain a difference between the maximum charging power of the vehicle-mounted charger and the average required power of the motor, the difference is compared with the capacity parameter of the battery system, and a correction range threshold of the state of charge parameter is determined according to a comparison result, where the correction range threshold may mainly have two intervals, one interval is located near the state of charge parameter in a full charge state, for example, may be 95% to 100%, and the other interval is located near the state of charge parameter corresponding to half of the electric quantity of the battery, for example, may be 60% to 65%.
As shown in fig. 3, in some embodiments, determining the revised range threshold for the state of charge parameter based on the comparison of the difference value to the battery system capacity parameter includes:
when the difference value is less than one third of the capacity parameter of the battery system, the correction range threshold value of the state of charge parameter is from a first correction threshold value to a second correction threshold value, and the second correction threshold value is greater than the first correction threshold value.
It is understood that, when the difference between the maximum charging power of the onboard charger and the average required power of the motor is less than one third of the capacity parameter of the battery system, the threshold of the correction range of the state of charge parameter may be a first correction threshold to a second correction threshold, the first correction threshold may be 60%, and the second correction threshold may be 65%.
The manner of correcting the state of charge parameter may correspond to a rest SOC correction mode within a range from the first correction threshold to the second correction threshold.
Or when the difference is greater than one third of the capacity parameter of the battery system, the correction range threshold of the state of charge parameter is from a third correction threshold to a fourth correction threshold, the third correction threshold is greater than the second correction threshold, and the fourth correction threshold is greater than the third correction threshold.
It is understood that, when the difference between the maximum charging power of the vehicle-mounted charger and the average required power of the motor is greater than one third of the capacity parameter of the battery system, the threshold of the correction range of the state of charge parameter may be a third correction threshold to a fourth correction threshold, the third correction threshold may be 95%, and the fourth correction threshold may be 100%.
The manner of correcting the state of charge parameter may correspond to the full charge SOC correction mode within the range of the third correction threshold to the fourth correction threshold.
That is, the first modification threshold < the second modification threshold < the third modification threshold < the fourth modification threshold.
It should be noted that, when the difference is equal to one third of the capacity parameter of the battery system, the correction mode of the state of charge parameter may correspond to either a standing SOC correction mode or a full charge SOC correction mode.
As shown in fig. 3, in some embodiments, the calibration mode of the SOC parameter is a static SOC calibration mode, and when the difference is less than one third of the capacity parameter of the battery system, the target charging power of the vehicle-mounted charger is controlled based on the calibration range threshold of the SOC parameter, so that the real-time SOC parameter is within the calibration range threshold, including:
if the initial state of charge parameter is less than the first correction threshold, the target charging power is greater than 0, and if the current state of charge parameter is greater than the second correction threshold, the target charging power is 0.
It can be understood that, if the initial state of charge parameter is smaller than the first correction threshold, the vehicle-mounted charger may be started, the vehicle-mounted charger may perform charging operation at the maximum charging power of the vehicle-mounted charger, and when the current state of charge parameter is larger than the second correction threshold, the vehicle-mounted charger may be stopped, the first correction threshold may be 60% and the second correction threshold may be 65%, so that when the working machine is under high voltage, the state of charge parameter SOC of the battery may be between 60% and 65%, so that the problem of poor SOC accuracy caused by long-term non-full charge may be reduced by SOC standing correction.
If the initial state of charge parameter is equal to the first correction threshold, the target charging power may be greater than 0 or may also be 0, and if the current state of charge parameter is equal to the second correction threshold, the target charging power may be greater than 0 or may also be 0, which may be determined by a person skilled in the art according to actual conditions.
Or, if the initial state of charge parameter is greater than the second correction threshold, the target charging power is 0, and if the current state of charge parameter is less than the first correction threshold, the target charging power is greater than 0.
It can be understood that if the initial state of charge parameter is greater than the second correction threshold, the vehicle-mounted charger may be turned off, the battery may continue to discharge, and when the battery discharges to a point where the current state of charge parameter is less than the first correction threshold, the vehicle-mounted charger may be turned on, and the battery is charged by the vehicle-mounted charger, so that the state of charge parameter SOC of the battery may also be between 60% and 65%, and thus the problem of poor SOC accuracy caused by long-term non-full charge may also be reduced by SOC standing correction.
If the initial state of charge parameter is equal to the second correction threshold, the target charging power may be greater than 0 or may also be 0, and if the current state of charge parameter is equal to the first correction threshold, the target charging power may be greater than 0 or may also be 0, which may be determined by a person skilled in the art according to actual conditions.
As shown in fig. 3, in some embodiments, the calibration mode of the SOC parameter is a static SOC calibration mode, and when the difference is less than one third of the capacity parameter of the battery system, the target charging power of the vehicle-mounted charger is controlled based on the calibration range threshold of the SOC parameter, so that the real-time SOC parameter is within the calibration range threshold, including:
if the real-time state of charge parameter is greater than the first correction threshold and less than the second correction threshold, and the original charging power is not 0, the target charging power is greater than 0, if the real-time state of charge parameter is less than the first correction threshold, the target charging power is greater than 0, and if the real-time state of charge parameter is greater than the second correction threshold, the target charging power is 0.
It can be understood that the original charging power is the charging power of the vehicle-mounted charger at the previous moment, if the real-time state of charge parameter is greater than the first correction threshold and smaller than the second correction threshold, and the vehicle-mounted charger is turned on when the working state of the vehicle-mounted charger at the previous moment is on, if the real-time state of charge parameter is smaller than the first correction threshold, the vehicle-mounted charger may be turned on to charge the battery through the vehicle-mounted charger, and if the real-time state of charge parameter is greater than the second correction threshold, the vehicle-mounted charger may be turned off, so that the state of charge parameter SOC of the battery may be between 60% and 65%, and thus the problem of poor SOC accuracy caused by long-term non-full charge discharge may also be reduced through SOC standing correction.
If the real-time state of charge parameter is equal to the first correction threshold, the vehicle-mounted charger may be turned on or turned off, that is, the target charging power may be greater than 0 or 0, and if the real-time state of charge parameter is equal to the second correction threshold, the vehicle-mounted charger may be turned on or turned off, that is, the target charging power may be greater than 0 or 0, which is not specifically limited herein, and those skilled in the art may determine the target charging power according to actual conditions.
Or, if the real-time state of charge parameter is greater than the first correction threshold and smaller than the second correction threshold, and the original charging power is 0, the target charging power is 0, if the real-time state of charge parameter is smaller than the first correction threshold, the target charging power is greater than 0, and if the real-time state of charge parameter is greater than the second correction threshold, the target charging power is 0.
It can be understood that if the real-time state of charge parameter is greater than the first correction threshold and less than the second correction threshold, and the vehicle-mounted charger is turned off in the previous working state, the vehicle-mounted charger is turned off at this time, if the real-time state of charge parameter is less than the first correction threshold, the vehicle-mounted charger may be turned on, the battery may be charged by the vehicle-mounted charger, and if the real-time state of charge parameter is greater than the second correction threshold, the vehicle-mounted charger may be turned off, so that the state of charge parameter SOC of the battery may be between 60% and 65%, so that the problem of poor SOC accuracy caused by long-term non-full discharge may also be reduced by SOC standing correction.
If the real-time state of charge parameter is equal to the first correction threshold, the vehicle-mounted charger may be turned on or turned off, that is, the target charging power may be greater than 0 or 0, and if the real-time state of charge parameter is equal to the second correction threshold, the vehicle-mounted charger may be turned on or turned off, that is, the target charging power may be greater than 0 or 0, which is not specifically limited herein, and those skilled in the art may determine the target charging power according to actual conditions.
As shown in fig. 3, in some embodiments, the correcting method of the state of charge parameter is a full charge SOC correction mode, and when the difference is greater than one third of the capacity parameter of the battery system, the controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameter to make the real-time state of charge parameter within the correction range threshold includes:
and if the real-time charge state parameter is smaller than a fifth correction threshold, the target charging power is the maximum charging power of the vehicle-mounted charger, and the fifth correction threshold is smaller than a third correction threshold and larger than a second correction threshold.
It is to be understood that the first modification threshold < the second modification threshold < the fifth modification threshold < the third modification threshold < the fourth modification threshold.
When the real-time state of charge parameter is smaller than the fifth correction threshold, for example, the real-time state of charge parameter is less than or equal to 90%, the vehicle-mounted charger may be started, and the vehicle-mounted charger is controlled to charge the battery with the maximum charging power of the vehicle-mounted charger.
Or, if the real-time state of charge parameter is greater than the fifth correction threshold and smaller than the fourth correction threshold, the target charging power is the maximum charging power of the battery.
When the real-time state of charge parameter is greater than the fifth correction threshold and smaller than the fourth correction threshold, for example, 90% < the real-time state of charge parameter < 100%, the vehicle-mounted charger may be controlled to charge the battery with the maximum charging power of the battery, and at this time, the maximum charging power of the battery is adopted, but the maximum charging power of the non-vehicle-mounted charger is adopted, because the charging power that the battery can bear is reduced when the state of charge parameter is higher, and at this time, the maximum charging power of the battery is smaller than the maximum charging power of the vehicle-mounted charger, and the battery is charged with the maximum charging power of the battery, so that the battery can be protected.
If the real-time state of charge parameter is equal to the fifth correction threshold, the vehicle-mounted charger may charge the battery with the maximum charging power of the vehicle-mounted charger, or may charge the battery with the maximum charging power of the battery, which is not particularly limited herein, and may be determined by a person skilled in the art according to an actual situation.
Or, if the real-time state of charge parameter is greater than the fourth correction threshold, the target charging power is 0, and if the real-time state of charge parameter is less than the third correction threshold, the target charging power is the maximum charging power of the battery.
When the real-time state of charge parameter is greater than the fourth correction threshold, the vehicle-mounted charger can be controlled to be turned off at the moment, the target charging power is 0, the battery is not charged, the electric quantity of the battery can be 100%, namely the battery is in a full charge state, the motor can be turned off in the full charge state of the battery, and the battery is turned off and corrected in a shutdown mode under the state that the battery does not supply power to the motor, so that the accurate target state of charge parameter is obtained.
When the real-time state of charge parameter is smaller than a third correction threshold value, the vehicle-mounted charger is started, the battery is charged according to the maximum charging power of the battery until the real-time state of charge parameter is larger than a fourth correction threshold value again, and the third correction threshold value can be 95%. That is, the state of charge parameter may be fully charged with the battery maintained within the range of the third modified threshold to the fourth modified threshold
If the real-time soc parameter is equal to the third correction threshold, the vehicle-mounted charger may be turned on or turned off, and if the real-time soc parameter is equal to the fourth correction threshold, the vehicle-mounted charger may be turned on or turned off, which is not particularly limited herein, and may be determined by a person skilled in the art according to an actual situation.
If the complete machine controller receives the SOC non-beakable sign information sent by the battery management system all the time, the SOC correction mode can be executed all the time, the SOC correction mode can be a standing SOC correction mode, and the SOC correction mode can also be a full-charge SOC correction mode until the SOC credible sign information sent by the battery management system is received.
As shown in fig. 4, the state of charge parameter correction apparatus provided by the present invention is described below, and the state of charge parameter correction apparatus described below and the state of charge parameter correction method described above may be referred to in correspondence with each other.
The invention provides a state of charge parameter correction device, which comprises: a receiving module 410, an obtaining module 420, a determining module 430, and a determining module 440.
The receiving module 410 is configured to receive the state of charge non-beacon information.
The obtaining module 420 is configured to, in response to the information of the unreliable flag of the state of charge, obtain a maximum charging power output by the vehicle-mounted charger and an average power demand of the motor within a threshold of a target time period.
The determining module 430 is configured to determine a correction range threshold of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor, and the capacity parameter of the battery system.
The control module 440 is configured to control the target charging power of the vehicle-mounted charger based on the modification range threshold of the state of charge parameter, so that the real-time state of charge parameter is within the modification range threshold, and the target state of charge parameter of the battery is corrected.
The state of charge parameter correction device provided in the embodiment of the present application is used for executing the above state of charge parameter correction method, and the specific implementation manner thereof is consistent with the method implementation manner, and can achieve the same beneficial effects, and details are not repeated here.
The present invention also provides a working machine including: the device comprises a machine body and the state of charge parameter correction device according to the embodiment, wherein the state of charge parameter correction device is installed on the machine body.
Fig. 5 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 5: a processor (processor)510, a communication Interface (Communications Interface)520, a memory (memory)530 and a communication bus 540, wherein the processor 510, the communication Interface 520 and the memory 530 communicate with each other via the communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform a state of charge parameter modification method comprising: receiving state of charge non-beacon information; responding to the information of the unreliable mark of the charge state, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor within a target time period threshold value; determining a correction range threshold value of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system; and controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameters so as to enable the real-time state of charge parameters to be within the correction range threshold range and correct the target state of charge parameters of the battery.
Furthermore, the logic instructions in the memory 530 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the state of charge parameter modification method provided by the above methods, the method comprising: receiving state of charge non-beacon information; responding to the information of the unreliable mark of the charge state, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor within a target time period threshold value; determining a correction range threshold value of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system; and controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameters so as to enable the real-time state of charge parameters to be within the correction range threshold range and correct the target state of charge parameters of the battery.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, is implemented to perform the above-mentioned methods for modifying state of charge parameters, the method comprising: receiving state of charge non-beacon information; responding to the information of the unreliable mark of the charge state, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor within a target time period threshold value; determining a correction range threshold value of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system; and controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameters so as to enable the real-time state of charge parameters to be within the correction range threshold range and correct the target state of charge parameters of the battery.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for correcting a state of charge parameter, comprising:
receiving state of charge non-beacon information;
responding to the charge state non-beaconing sign information, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor in a target time period;
determining a correction range threshold value of a state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and a battery system capacity parameter;
and controlling the target charging power of the vehicle-mounted charger based on the correction range threshold value and the initial state of charge parameter of the state of charge parameter, so that the real-time state of charge parameter is in the correction range threshold value range, and correcting the target state of charge parameter of the battery.
2. The method according to claim 1, wherein the determining a correction range threshold of the soc parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor, and the battery system capacity parameter comprises:
determining a difference value between the maximum charging power of the vehicle-mounted charger and the average required power of the motor;
and determining a correction range threshold of the state of charge parameter based on the comparison of the difference value and the capacity parameter of the battery system.
3. The method of claim 2, wherein determining a correction range threshold for the state of charge parameter based on the comparison of the difference to the battery system capacity parameter comprises:
when the difference value is less than one third of the capacity parameter of the battery system, the correction range threshold value of the state of charge parameter is from a first correction threshold value to a second correction threshold value, and the second correction threshold value is greater than the first correction threshold value;
or when the difference is greater than one third of the battery system capacity parameter, the correction range threshold of the state of charge parameter is a third correction threshold to a fourth correction threshold, the third correction threshold is greater than the second correction threshold, and the fourth correction threshold is greater than the third correction threshold.
4. The method according to claim 3, wherein when the difference is less than one-third of the capacity parameter of the battery system, the controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameter so that the real-time state of charge parameter is within the correction range threshold comprises:
if the initial state of charge parameter is smaller than a first correction threshold, the target charging power is larger than 0, and if the current state of charge parameter is larger than a second correction threshold, the target charging power is 0;
or, if the initial state of charge parameter is greater than a second correction threshold, the target charging power is 0, and if the current state of charge parameter is less than a first correction threshold, the target charging power is greater than 0.
5. The method according to claim 3, wherein when the difference is less than one-third of the capacity parameter of the battery system, the controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameter so that the real-time state of charge parameter is within the correction range threshold comprises:
if the real-time state of charge parameter is greater than the first correction threshold and less than the second correction threshold, and the original charging power is not 0, the target charging power is greater than 0, if the real-time state of charge parameter is less than the first correction threshold, the target charging power is greater than 0, and if the real-time state of charge parameter is greater than the second correction threshold, the target charging power is 0;
or, if the real-time state of charge parameter is greater than the first correction threshold and smaller than the second correction threshold, and the original charging power is 0, the target charging power is 0, if the real-time state of charge parameter is smaller than the first correction threshold, the target charging power is greater than 0, and if the real-time state of charge parameter is greater than the second correction threshold, the target charging power is 0.
6. The method according to claim 3, wherein when the difference is greater than one-third of the capacity parameter of the battery system, the controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameter so that the real-time state of charge parameter is within the correction range threshold comprises:
if the real-time state of charge parameter is smaller than a fifth correction threshold, the target charging power is the maximum charging power of the vehicle-mounted charger, and the fifth correction threshold is smaller than the third correction threshold and larger than the second correction threshold;
or, if the real-time state of charge parameter is greater than the fifth correction threshold and smaller than the fourth correction threshold, the target charging power is the maximum charging power of the battery;
or, if the real-time state of charge parameter is greater than the fourth correction threshold, the target charging power is 0, and if the real-time state of charge parameter is less than the third correction threshold, the target charging power is the maximum charging power of the battery.
7. A state-of-charge parameter correction apparatus, comprising:
the receiving module is used for receiving the information of the non-beacon mark of the charge state;
the acquisition module is used for responding to the charge state non-beacon information, and acquiring the maximum charging power of the vehicle-mounted charger output by the vehicle-mounted charger and the average motor required power of the motor in a target time period threshold;
the determining module is used for determining a correction range threshold of the state of charge parameter based on the maximum charging power of the vehicle-mounted charger, the average required power of the motor and the capacity parameter of the battery system;
and the control module is used for controlling the target charging power of the vehicle-mounted charger based on the correction range threshold of the state of charge parameter so as to enable the real-time state of charge parameter to be within the correction range threshold range and correct the target state of charge parameter of the battery.
8. A work machine, comprising:
a body;
the state of charge parameter correction device of claim 7, mounted to the fuselage.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the steps of the state of charge parameter modification method according to any one of claims 1 to 6.
10. A non-transitory computer readable storage medium, having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the steps of the state of charge parameter modification method according to any one of claims 1 to 6.
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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102930173A (en) * 2012-11-16 2013-02-13 重庆长安汽车股份有限公司 SOC(state of charge) online estimation method for lithium ion battery
CN104991189A (en) * 2015-04-13 2015-10-21 中国东方电气集团有限公司 Cell SOC on-line calibration method
CN105093127A (en) * 2015-08-14 2015-11-25 合肥赛为智能有限公司 Calibration and estimation method for state of charge (SOC) of lithium battery based on charge mode
CN105277909A (en) * 2015-11-10 2016-01-27 湖南南车时代电动汽车股份有限公司 SOC calibration method of hybrid power cell
CN107546433A (en) * 2017-09-01 2018-01-05 华霆（合肥）动力技术有限公司 Battery information processing method and processing device
CN107831440A (en) * 2016-09-16 2018-03-23 保时捷股份公司 For the method for the charged state for correcting charged state display
CN110861534A (en) * 2019-11-27 2020-03-06 安徽江淮汽车集团股份有限公司 Electric vehicle correction method, device, equipment and storage medium
CN111284480A (en) * 2020-03-10 2020-06-16 浙江吉利新能源商用车集团有限公司 SOC correction method and correction equipment for vehicle power battery
CN111426960A (en) * 2020-05-26 2020-07-17 中国恩菲工程技术有限公司 Energy storage lithium battery charge state monitoring method and device
CN111509313A (en) * 2020-04-26 2020-08-07 浙江吉利新能源商用车集团有限公司 SOC correction method for lithium iron phosphate battery
CN112757962A (en) * 2021-01-07 2021-05-07 天津易鼎丰动力科技有限公司 Method for calibrating available capacity of battery by BMS

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102930173A (en) * 2012-11-16 2013-02-13 重庆长安汽车股份有限公司 SOC(state of charge) online estimation method for lithium ion battery
CN104991189A (en) * 2015-04-13 2015-10-21 中国东方电气集团有限公司 Cell SOC on-line calibration method
CN105093127A (en) * 2015-08-14 2015-11-25 合肥赛为智能有限公司 Calibration and estimation method for state of charge (SOC) of lithium battery based on charge mode
CN105277909A (en) * 2015-11-10 2016-01-27 湖南南车时代电动汽车股份有限公司 SOC calibration method of hybrid power cell
CN107831440A (en) * 2016-09-16 2018-03-23 保时捷股份公司 For the method for the charged state for correcting charged state display
CN107546433A (en) * 2017-09-01 2018-01-05 华霆（合肥）动力技术有限公司 Battery information processing method and processing device
CN110861534A (en) * 2019-11-27 2020-03-06 安徽江淮汽车集团股份有限公司 Electric vehicle correction method, device, equipment and storage medium
CN111284480A (en) * 2020-03-10 2020-06-16 浙江吉利新能源商用车集团有限公司 SOC correction method and correction equipment for vehicle power battery
CN111509313A (en) * 2020-04-26 2020-08-07 浙江吉利新能源商用车集团有限公司 SOC correction method for lithium iron phosphate battery
CN111426960A (en) * 2020-05-26 2020-07-17 中国恩菲工程技术有限公司 Energy storage lithium battery charge state monitoring method and device
CN112757962A (en) * 2021-01-07 2021-05-07 天津易鼎丰动力科技有限公司 Method for calibrating available capacity of battery by BMS

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