[go: up one dir, main page]

CN115411813A - Charging control method and system - Google Patents

Charging control method and system Download PDF

Info

Publication number
CN115411813A
CN115411813A CN202211047277.0A CN202211047277A CN115411813A CN 115411813 A CN115411813 A CN 115411813A CN 202211047277 A CN202211047277 A CN 202211047277A CN 115411813 A CN115411813 A CN 115411813A
Authority
CN
China
Prior art keywords
voltage
mode
preset
determining
lithium battery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211047277.0A
Other languages
Chinese (zh)
Inventor
金英珉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aiwei Jiangsu Power Electronics Co ltd
Original Assignee
Aiwei Jiangsu Power Electronics Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aiwei Jiangsu Power Electronics Co ltd filed Critical Aiwei Jiangsu Power Electronics Co ltd
Publication of CN115411813A publication Critical patent/CN115411813A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H02J7/80—
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H02J7/62—
    • H02J7/933—
    • H02J7/96—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Power Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)

Abstract

The invention provides a charging control method and a charging control system, wherein the method comprises the following steps: acquiring the current charging state of the lithium battery pack; determining a voltage modulation control signal based on the current state of charge; and controlling a voltage modulation module connected between the current limiting resistor and the converter to modulate the charging voltage loaded on the lithium battery pack based on the voltage modulation signal. According to the charging control method, the voltage output to the lithium battery pack by the output element is modulated by the voltage modulation module according to the charging state of the lithium battery, so that the voltage difference between the output voltage and the charging voltage of the lithium battery pack is reduced, the amplitude of possibly generated current pulses is reduced, and the converter and the lithium battery pack are protected from being damaged by the current pulses.

Description

一种充电控制方法及系统A charging control method and system

技术领域technical field

本发明涉及新能源电车电池组充电技术领域，特别涉及一种充电控制方法及系统。The invention relates to the technical field of battery pack charging for new energy electric vehicles, in particular to a charging control method and system.

背景技术Background technique

新能源电车的能源主要为锂电池组提供，在对锂电池组充电时，由于转换器的输出元件的电压值与锂电池组的电压值不同，会产生电流脉冲。为了避免电流脉冲对充电的转换器及锂电池的损害，通常采用限流电阻进行限制；通过限流电阻对产生的电流进行消耗，虽然此种方式能够对电流脉冲起一定限制作用，但是效果并不是很理想。The energy of the new energy tram is mainly provided by the lithium battery pack. When the lithium battery pack is charged, because the voltage value of the output element of the converter is different from the voltage value of the lithium battery pack, a current pulse will be generated. In order to avoid the damage of the current pulse to the charging converter and lithium battery, the current limiting resistor is usually used to limit the current; the generated current is consumed through the current limiting resistor. Although this method can limit the current pulse to a certain extent, the effect is not good. Not ideal.

发明内容Contents of the invention

本发明目的之一在于提供了一种充电控制方法，通过电压调制模块根据锂电池的充电状态对输出元件输出至锂电池组的电压进行调制，从而降低锂电池组的输出电压与充电电压之间的压差，降低可能产生的电流脉冲的幅值，进而实现保护转换器和锂电池组免收电流脉冲的损害。One of the objects of the present invention is to provide a charging control method, which uses the voltage modulation module to modulate the voltage output from the output element to the lithium battery pack according to the charging state of the lithium battery, thereby reducing the gap between the output voltage of the lithium battery pack and the charging voltage. The voltage difference reduces the amplitude of the current pulse that may be generated, thereby protecting the converter and the lithium battery pack from the damage of the current pulse.

本发明实施例提供的一种充电控制方法，包括：A charging control method provided by an embodiment of the present invention includes:

获取锂电池组的当前充电状态；Obtain the current state of charge of the lithium battery pack;

基于当前充电状态，确定电压调制控制信号；Determining a voltage modulation control signal based on the current state of charge;

基于电压调制信号控制连接至限流电阻和转换器之间的电压调制模块对加载在锂电池组上的充电电压进行调制。Based on the voltage modulation signal, the voltage modulation module connected between the current limiting resistor and the converter is controlled to modulate the charging voltage loaded on the lithium battery pack.

优选的，获取锂电池组的当前充电状态，包括：Preferably, obtain the current state of charge of the lithium battery pack, including:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

基于当前充电状态，确定电压调制控制信号，包括：Based on the current state of charge, determine the voltage modulation control signal, including:

对电池电压进行预处理，获取标示电压；Preprocess the battery voltage to obtain the marked voltage;

基于标示电压，确定电压调制控制信号的生成方式；Based on the marked voltage, determine the generation method of the voltage modulation control signal;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

优选的，基于标示电压，确定电压调制控制信号的生成方式，包括：Preferably, based on the marked voltage, determining the generation method of the voltage modulation control signal includes:

当标示电压大于预设的第一标准电压时，确定生成方式为预设的第一模式；When the marked voltage is greater than the preset first standard voltage, the generation method is determined to be the preset first mode;

当标示电压小于等于第一标准电压且大于预设的第二标准电压时，确定生成方式为预设的第二模式；When the marked voltage is less than or equal to the first standard voltage and greater than the preset second standard voltage, it is determined that the generation method is the preset second mode;

当标示电压小于等于第二标准电压且大于预设的第三标准电压时，确定生成方式为预设的第三模式；When the marked voltage is less than or equal to the second standard voltage and greater than the preset third standard voltage, the generation method is determined to be the preset third mode;

当标示电压小于等于第三标准电压且大于预设的第四标准电压时，确定生成方式为预设的第四模式；When the marked voltage is less than or equal to the third standard voltage and greater than the preset fourth standard voltage, it is determined that the generation method is the preset fourth mode;

当标示电压小于等于第四标准电压时，确定生成方式为预设的第五模式；When the marked voltage is less than or equal to the fourth standard voltage, the generation method is determined to be the preset fifth mode;

其中，第一标准电压、第二标准电压、第三标准电压和第四标准电压依次减小；通过第一模式、第二模式、第三模式、第四模式和第五模式生成的电压调制控制信号的占空比依次减小。Among them, the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage decrease sequentially; the voltage modulation control generated by the first mode, the second mode, the third mode, the fourth mode and the fifth mode The duty cycle of the signal decreases sequentially.

优选的，获取锂电池组的当前充电状态，包括：Preferably, obtain the current state of charge of the lithium battery pack, including:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

获取锂电池组的第一类型识别信息；Obtain the first type identification information of the lithium battery pack;

获取转换器的输出电压；Obtain the output voltage of the converter;

获取转换器的第二类型识别信息；Acquiring the second type identification information of the converter;

将电池电压、输出电压、第一类型识别信息和第二类型识别信息，作为当前充电状态的状态数据。The battery voltage, the output voltage, the first type identification information and the second type identification information are used as state data of the current charging state.

优选的，基于当前充电状态，确定电压调制控制信号，包括：Preferably, based on the current state of charge, determining the voltage modulation control signal includes:

计算输出电压与电池电压的差值；Calculate the difference between the output voltage and the battery voltage;

基于差值，确定第一参数值；determining a first parameter value based on the difference;

基于第一类型识别信息，确定第二参数值；determining a second parameter value based on the first type identification information;

基于第二类型识别信息，确定第三参数值；determining a third parameter value based on the second type identification information;

基于第一参数值、第二参数值和第三参数值，生成方式确定向量；generating a mode determination vector based on the first parameter value, the second parameter value and the third parameter value;

基于方式确定向量和预设的方式确定库，确定电压调制控制信号的生成方式；Determine the generation mode of the voltage modulation control signal based on the mode determination vector and the preset mode determination library;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

本发明还提供一种充电控制系统，包括：The present invention also provides a charging control system, including:

获取模块，用于获取锂电池组的当前充电状态；Obtain module, be used for obtaining the current state of charge of lithium battery pack;

确定模块，用于基于当前充电状态，确定电压调制控制信号；A determining module, configured to determine a voltage modulation control signal based on the current charging state;

调制模块，用于基于电压调制信号控制连接至限流电阻和转换器之间的电压调制模块对加载在锂电池组上的充电电压进行调制。The modulation module is used to control the voltage modulation module connected between the current limiting resistor and the converter to modulate the charging voltage loaded on the lithium battery pack based on the voltage modulation signal.

优选的，获取模块获取锂电池组的当前充电状态，执行如下操作：Preferably, the acquisition module acquires the current state of charge of the lithium battery pack, and performs the following operations:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

确定模块基于当前充电状态，确定电压调制控制信号，执行如下操作：The determination module determines the voltage modulation control signal based on the current charging state, and performs the following operations:

对电池电压进行预处理，获取标示电压；Preprocess the battery voltage to obtain the marked voltage;

基于标示电压，确定电压调制控制信号的生成方式；Based on the marked voltage, determine the generation method of the voltage modulation control signal;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

优选的，确定模块基于标示电压，确定电压调制控制信号的生成方式，执行如下操作：Preferably, the determination module determines the generation method of the voltage modulation control signal based on the marked voltage, and performs the following operations:

当标示电压大于预设的第一标准电压时，确定生成方式为预设的第一模式；When the marked voltage is greater than the preset first standard voltage, the generation method is determined to be the preset first mode;

当标示电压小于等于第一标准电压且大于预设的第二标准电压时，确定生成方式为预设的第二模式；When the marked voltage is less than or equal to the first standard voltage and greater than the preset second standard voltage, it is determined that the generation method is the preset second mode;

当标示电压小于等于第二标准电压且大于预设的第三标准电压时，确定生成方式为预设的第三模式；When the marked voltage is less than or equal to the second standard voltage and greater than the preset third standard voltage, the generation method is determined to be the preset third mode;

当标示电压小于等于第三标准电压且大于预设的第四标准电压时，确定生成方式为预设的第四模式；When the marked voltage is less than or equal to the third standard voltage and greater than the preset fourth standard voltage, it is determined that the generation method is the preset fourth mode;

当标示电压小于等于第四标准电压时，确定生成方式为预设的第五模式；When the marked voltage is less than or equal to the fourth standard voltage, the generation method is determined to be the preset fifth mode;

其中，第一标准电压、第二标准电压、第三标准电压和第四标准电压依次减小；通过第一模式、第二模式、第三模式、第四模式和第五模式生成的电压调制控制信号的占空比依次减小。Among them, the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage decrease sequentially; the voltage modulation control generated by the first mode, the second mode, the third mode, the fourth mode and the fifth mode The duty cycle of the signal decreases sequentially.

优选的，获取模块获取锂电池组的当前充电状态，执行如下操作：Preferably, the acquisition module acquires the current state of charge of the lithium battery pack, and performs the following operations:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

获取锂电池组的第一类型识别信息；Obtain the first type identification information of the lithium battery pack;

获取转换器的输出电压；Obtain the output voltage of the converter;

获取转换器的第二类型识别信息；Acquiring the second type identification information of the converter;

将电池电压、输出电压、第一类型识别信息和第二类型识别信息，作为当前充电状态的状态数据。The battery voltage, the output voltage, the first type identification information and the second type identification information are used as state data of the current charging state.

优选的，确定模块基于当前充电状态，确定电压调制控制信号，执行如下操作：Preferably, the determination module determines the voltage modulation control signal based on the current charging state, and performs the following operations:

计算输出电压与电池电压的差值；Calculate the difference between the output voltage and the battery voltage;

基于差值，确定第一参数值；determining a first parameter value based on the difference;

基于第一类型识别信息，确定第二参数值；determining a second parameter value based on the first type identification information;

基于第二类型识别信息，确定第三参数值；determining a third parameter value based on the second type identification information;

基于第一参数值、第二参数值和第三参数值，生成方式确定向量；generating a mode determination vector based on the first parameter value, the second parameter value and the third parameter value;

基于方式确定向量和预设的方式确定库，确定电压调制控制信号的生成方式；Determine the generation mode of the voltage modulation control signal based on the mode determination vector and the preset mode determination library;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书、权利要求书、以及附图中所特别指出的结构来实现和获得。Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

附图说明Description of drawings

附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

图1为本发明实施例中一种充电控制方法的示意图；FIG. 1 is a schematic diagram of a charging control method in an embodiment of the present invention;

图2为本发明实施例中一种具体电路的示意图；Fig. 2 is the schematic diagram of a kind of concrete circuit in the embodiment of the present invention;

图3为本发明实施例中一种充电控制系统的示意图。Fig. 3 is a schematic diagram of a charging control system in an embodiment of the present invention.

具体实施方式Detailed ways

以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

本发明实施例提供了一种充电控制方法，如图1所示，包括：An embodiment of the present invention provides a charging control method, as shown in FIG. 1 , including:

步骤S1：获取锂电池组的当前充电状态；Step S1: Obtain the current state of charge of the lithium battery pack;

步骤S2：基于当前充电状态，确定电压调制控制信号；Step S2: Determine the voltage modulation control signal based on the current charging state;

步骤S3：基于电压调制信号控制连接至限流电阻和转换器之间的电压调制模块对加载在锂电池组上的充电电压进行调制。Step S3: controlling the voltage modulation module connected between the current limiting resistor and the converter based on the voltage modulation signal to modulate the charging voltage loaded on the lithium battery pack.

上述技术方案的工作原理及有益效果为：The working principle and beneficial effects of the above-mentioned technical scheme are:

基于锂电池的当前充电状态对加载充电电压进行调制，降低了锂电池组和充电电压之间的压差，进而实现降低了压差带来的电流脉冲的幅值；与限流电阻共同实现对转换器以及锂电池组的保护；其中，电压调制模块包括电控开关和控制电控开关通断的控制元件；通过控制元件控制电控开关的瞬时通断实现对电压的调制；例如：电控开关11包括场效应晶体管、绝缘栅双极型晶体管、金属氧化物半导体场效应晶体管其中任一；控制元件12与电控开关11的栅极连接，通过往栅极上施加电压的方式，实现控制电控开关11的通断，进而是实现了充电电压的调制。Based on the current charging state of the lithium battery, the loading charging voltage is modulated, which reduces the voltage difference between the lithium battery pack and the charging voltage, thereby reducing the amplitude of the current pulse caused by the voltage difference; Protection of converters and lithium battery packs; among them, the voltage modulation module includes an electronically controlled switch and a control element that controls the on-off of the electronically controlled switch; the voltage is modulated by controlling the instantaneous on-off of the electronically controlled switch; for example: electronically controlled The switch 11 includes any one of a field effect transistor, an insulated gate bipolar transistor, and a metal oxide semiconductor field effect transistor; the control element 12 is connected to the gate of the electronically controlled switch 11, and the control is realized by applying a voltage to the gate. The on-off of the electronically controlled switch 11 further realizes the modulation of the charging voltage.

在一个实施例中，获取锂电池组的当前充电状态，包括：In one embodiment, obtaining the current state of charge of the lithium battery pack includes:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

基于当前充电状态，确定电压调制控制信号，包括：Based on the current state of charge, determine the voltage modulation control signal, including:

对电池电压进行预处理，获取标示电压；例如：降压处理将电池电压与预设的基准电压进行减法运算；即提取电池电压高出基准电压的部分；其中基准电压为锂电池组的正常使用时能达到的最低电压；Preprocess the battery voltage to obtain the marked voltage; for example: step-down processing subtracts the battery voltage from the preset reference voltage; that is, extracts the part of the battery voltage higher than the reference voltage; the reference voltage is the normal use of the lithium battery pack The lowest voltage that can be reached when

基于标示电压，确定电压调制控制信号的生成方式；Based on the marked voltage, determine the generation method of the voltage modulation control signal;

基于生成方式，生成电压调制控制信号。电压调制控制信号为PWM信号；主要通过PWM信号发生器13实现PWM信号的生成；Based on the generation manner, a voltage modulated control signal is generated. The voltage modulation control signal is a PWM signal; the generation of the PWM signal is mainly realized by the PWM signal generator 13;

其中，基于标示电压，确定电压调制控制信号的生成方式，包括：Among them, based on the marked voltage, the generation method of the voltage modulation control signal is determined, including:

当标示电压大于预设的第一标准电压时，确定生成方式为预设的第一模式；When the marked voltage is greater than the preset first standard voltage, the generation method is determined to be the preset first mode;

当标示电压小于等于第一标准电压且大于预设的第二标准电压时，确定生成方式为预设的第二模式；When the marked voltage is less than or equal to the first standard voltage and greater than the preset second standard voltage, it is determined that the generation method is the preset second mode;

当标示电压小于等于第二标准电压且大于预设的第三标准电压时，确定生成方式为预设的第三模式；When the marked voltage is less than or equal to the second standard voltage and greater than the preset third standard voltage, the generation method is determined to be the preset third mode;

当标示电压小于等于第三标准电压且大于预设的第四标准电压时，确定生成方式为预设的第四模式；When the marked voltage is less than or equal to the third standard voltage and greater than the preset fourth standard voltage, it is determined that the generation method is the preset fourth mode;

当标示电压小于等于第四标准电压时，确定生成方式为预设的第五模式；When the marked voltage is less than or equal to the fourth standard voltage, the generation method is determined to be the preset fifth mode;

其中，第一标准电压、第二标准电压、第三标准电压和第四标准电压依次减小；通过第一模式、第二模式、第三模式、第四模式和第五模式生成的电压调制控制信号的占空比依次减小。Among them, the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage decrease sequentially; the voltage modulation control generated by the first mode, the second mode, the third mode, the fourth mode and the fifth mode The duty cycle of the signal decreases sequentially.

上述技术方案的工作原理及有益效果为：The working principle and beneficial effects of the above-mentioned technical scheme are:

第一模式、第二模式、第三模式、第四模式和第五模式分别对应不同的占空比的PWM信号的调制方式，标示电压与第一标准电压、第二标准电压、第三标准电压和第四标准电压比较可以通过多个比较器实现，各个比较器14的基准电压分别对应第一标准电压、第二标准电压、第三标准电压和第四标准电压；当标示电压大于比较器14的基准电压时，比较器14打开；随着比较器14打开数量的增加，PWM信号发生器13生成的PWM信号的占空比同样增加，随着占空比的增加，调制后的电压越接近转换器的输出电压；充电初期，占空比较小，调制后的输出电压较低，与锂电池组的电压接近；当随着充电时间的增加，锂电池组的电压增加，同步占空比增加，调制后的输出电压也增加，通过调制电压实现输出电压与锂电池组的电压保持在一定差值，降低可能产生的电流的最大值的大小；如图2所示，标示电压加载在电压加载单元15；通过电压比较单元的多个比较器14的比较并生成模式信号，传输至PWM信号发生器13，进而实现控制元件12的PWM信号的生成。The first mode, the second mode, the third mode, the fourth mode and the fifth mode respectively correspond to the modulation methods of PWM signals with different duty ratios, and the marked voltage is consistent with the first standard voltage, the second standard voltage and the third standard voltage Comparing with the fourth standard voltage can be realized by a plurality of comparators, and the reference voltages of each comparator 14 respectively correspond to the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage; when the indicated voltage is greater than the comparator 14 When the reference voltage is higher, the comparator 14 is turned on; as the number of comparators 14 turned on increases, the duty ratio of the PWM signal generated by the PWM signal generator 13 also increases, and as the duty ratio increases, the modulated voltage is closer to The output voltage of the converter; at the initial stage of charging, the duty cycle is small, and the modulated output voltage is low, which is close to the voltage of the lithium battery pack; when the charging time increases, the voltage of the lithium battery pack increases, and the synchronous duty cycle increases , the modulated output voltage also increases, and the output voltage and the voltage of the lithium battery pack are kept at a certain difference by modulating the voltage, reducing the maximum value of the possible current; as shown in Figure 2, the indicated voltage is loaded at the voltage loaded Unit 15 : through the comparison of multiple comparators 14 of the voltage comparison unit, a mode signal is generated and transmitted to the PWM signal generator 13 , thereby realizing the generation of the PWM signal of the control element 12 .

在一个实施例中，获取锂电池组的当前充电状态，包括：In one embodiment, obtaining the current state of charge of the lithium battery pack includes:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

获取锂电池组的第一类型识别信息；Obtain the first type identification information of the lithium battery pack;

获取转换器的输出电压；Obtain the output voltage of the converter;

获取转换器的第二类型识别信息；Acquiring the second type identification information of the converter;

将电池电压、输出电压、第一类型识别信息和第二类型识别信息，作为当前充电状态的状态数据。The battery voltage, the output voltage, the first type identification information and the second type identification information are used as state data of the current charging state.

其中，基于当前充电状态，确定电压调制控制信号，包括：Wherein, based on the current charging state, the voltage modulation control signal is determined, including:

计算输出电压与电池电压的差值；Calculate the difference between the output voltage and the battery voltage;

基于差值，确定第一参数值；可以直接将差值作为第一参数值；Determine the first parameter value based on the difference; the difference can be directly used as the first parameter value;

基于第一类型识别信息，确定第二参数值；将第一类型识别信息对应的编号量化后作为第二参数值；Determining a second parameter value based on the first type of identification information; quantifying the number corresponding to the first type of identification information as the second parameter value;

基于第二类型识别信息，确定第三参数值；将第二类型识别信息对应的编号量化后作为第三参数值；Determining a third parameter value based on the second type of identification information; quantifying the number corresponding to the second type of identification information as the third parameter value;

基于第一参数值、第二参数值和第三参数值，生成方式确定向量；将第一参数值、第二参数值和第三参数值依次排列形成方式确定向量。A mode determination vector is generated based on the first parameter value, the second parameter value and the third parameter value; and the mode determination vector is formed by arranging the first parameter value, the second parameter value and the third parameter value in sequence.

基于方式确定向量和预设的方式确定库，确定电压调制控制信号的生成方式；其中，方式确定库为根据大量数据经由专业人员分析构建；例如：将方式确定向量与方式确定库中各个标识向量进行匹配；提取匹配符合的标识向量对应关联的电压调制控制信号的生成方式的生成模式的识别参数；通过识别参数确定生成模式；其中，匹配可以采用计算相似度的方式，相似度计算公式如下：

Figure BDA0003820502560000081
式中，XS表示方式确定向量与标识向量之间的相似度；Fi为方式确定向量的第i个数据值；Bi为方式标识向量的第i个数据值；n为向量中数据总数，此时，n取值为3；当相似度为方式确定库中最大时，确定两者匹配。；Based on the mode determination vector and the preset mode determination library, determine the generation mode of the voltage modulation control signal; wherein, the mode determination library is constructed based on a large amount of data through professional analysis; for example: combine the mode determination vector with each identification vector in the mode determination library Carry out matching; extract the identification parameter of the generation mode of the generation mode corresponding to the generation mode of the voltage modulation control signal corresponding to the matching identification vector; determine the generation mode by the identification parameter; wherein, the matching can adopt the method of calculating similarity, and the similarity calculation formula is as follows:
Figure BDA0003820502560000081
In the formula, XS represents the similarity between the mode determination vector and the identification vector; F i is the i-th data value of the mode determination vector; B i is the i-th data value of the mode identification vector; n is the total number of data in the vector, At this time, the value of n is 3; when the similarity is the largest in the way to determine the library, it is determined that the two match. ;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

上述技术方案的工作原理及有益效果为：The working principle and beneficial effects of the above-mentioned technical scheme are:

本实施例不仅考虑输出电压和电池电压，还考虑了锂电池组的性能以及转换器的性能；相同类型的转换器和锂电池组的性能具有一定的相同或相似性，可以分别通过第一类型识别信息和第二类型识别信息标示其性能；输出电压和电池电压表示锂电池组充电的当前瞬时状态，锂电池组的性能以及转换器的性能表示充电的变化趋势状态；通过综合分析当前瞬时状态和变化趋势状态进而是实现生成方式的确定，实现了准确的生成方式的确定；实现更精细化地电压调制，进一步降低了瞬时电流的幅值。其中，第一类型识别信息和第二类型识别信息可以是事先设置的固有类型编码；不同的编码表示不同厂商不同型号的器件。This embodiment not only considers the output voltage and battery voltage, but also considers the performance of the lithium battery pack and the performance of the converter; the performance of the same type of converter and lithium battery pack has certain sameness or similarity, which can be obtained through the first type The identification information and the second type of identification information mark its performance; the output voltage and battery voltage represent the current instantaneous state of charging the lithium battery pack, and the performance of the lithium battery pack and the performance of the converter represent the changing trend state of charging; through comprehensive analysis of the current instantaneous state and the state of the change trend, and then realize the determination of the generation method, which realizes the determination of the accurate generation method; realizes more refined voltage modulation, and further reduces the amplitude of the instantaneous current. Wherein, the first type identification information and the second type identification information may be inherent type codes set in advance; different codes represent different models of devices from different manufacturers.

本发明还提供一种充电控制系统，如图3所示，还包括：The present invention also provides a charging control system, as shown in Figure 3, further comprising:

获取模块1，用于获取锂电池组的当前充电状态；Obtaining module 1, used to obtain the current state of charge of the lithium battery pack;

确定模块2，用于基于当前充电状态，确定电压调制控制信号；A determining module 2, configured to determine a voltage modulation control signal based on the current charging state;

调制模块3，用于基于电压调制信号控制连接至限流电阻和转换器之间的电压调制模块对加载在锂电池组上的充电电压进行调制。The modulation module 3 is used to control the voltage modulation module connected between the current limiting resistor and the converter to modulate the charging voltage loaded on the lithium battery pack based on the voltage modulation signal.

在一个实施例中，获取模块1获取锂电池组的当前充电状态，执行如下操作：In one embodiment, the obtaining module 1 obtains the current state of charge of the lithium battery pack, and performs the following operations:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

确定模块2基于当前充电状态，确定电压调制控制信号，执行如下操作：The determination module 2 determines the voltage modulation control signal based on the current charging state, and performs the following operations:

对电池电压进行预处理，获取标示电压；Preprocess the battery voltage to obtain the marked voltage;

基于标示电压，确定电压调制控制信号的生成方式；Based on the marked voltage, determine the generation method of the voltage modulation control signal;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

在一个实施例中，确定模块2基于标示电压，确定电压调制控制信号的生成方式，执行如下操作：In one embodiment, the determination module 2 determines the generation method of the voltage modulation control signal based on the marked voltage, and performs the following operations:

当标示电压大于预设的第一标准电压时，确定生成方式为预设的第一模式；When the marked voltage is greater than the preset first standard voltage, the generation method is determined to be the preset first mode;

当标示电压小于等于第一标准电压且大于预设的第二标准电压时，确定生成方式为预设的第二模式；When the marked voltage is less than or equal to the first standard voltage and greater than the preset second standard voltage, it is determined that the generation method is the preset second mode;

当标示电压小于等于第二标准电压且大于预设的第三标准电压时，确定生成方式为预设的第三模式；When the marked voltage is less than or equal to the second standard voltage and greater than the preset third standard voltage, the generation method is determined to be the preset third mode;

当标示电压小于等于第三标准电压且大于预设的第四标准电压时，确定生成方式为预设的第四模式；When the marked voltage is less than or equal to the third standard voltage and greater than the preset fourth standard voltage, it is determined that the generation method is the preset fourth mode;

当标示电压小于等于第四标准电压时，确定生成方式为预设的第五模式；When the marked voltage is less than or equal to the fourth standard voltage, the generation method is determined to be the preset fifth mode;

其中，第一标准电压、第二标准电压、第三标准电压和第四标准电压依次减小；通过第一模式、第二模式、第三模式、第四模式和第五模式生成的电压调制控制信号的占空比依次减小。Among them, the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage decrease sequentially; the voltage modulation control generated by the first mode, the second mode, the third mode, the fourth mode and the fifth mode The duty cycle of the signal decreases sequentially.

在一个实施例中，获取模块1获取锂电池组的当前充电状态，执行如下操作：In one embodiment, the obtaining module 1 obtains the current state of charge of the lithium battery pack, and performs the following operations:

获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack;

获取锂电池组的第一类型识别信息；Obtain the first type identification information of the lithium battery pack;

获取转换器的输出电压；Obtain the output voltage of the converter;

获取转换器的第二类型识别信息；Acquiring the second type identification information of the converter;

将电池电压、输出电压、第一类型识别信息和第二类型识别信息，作为当前充电状态的状态数据。The battery voltage, the output voltage, the first type identification information and the second type identification information are used as state data of the current charging state.

在一个实施例中，确定模块2基于当前充电状态，确定电压调制控制信号，执行如下操作：In one embodiment, the determination module 2 determines the voltage modulation control signal based on the current charging state, and performs the following operations:

计算输出电压与电池电压的差值；Calculate the difference between the output voltage and the battery voltage;

基于差值，确定第一参数值；determining a first parameter value based on the difference;

基于第一类型识别信息，确定第二参数值；determining a second parameter value based on the first type identification information;

基于第二类型识别信息，确定第三参数值；determining a third parameter value based on the second type identification information;

基于第一参数值、第二参数值和第三参数值，生成方式确定向量；generating a mode determination vector based on the first parameter value, the second parameter value and the third parameter value;

基于方式确定向量和预设的方式确定库，确定电压调制控制信号的生成方式；Determine the generation mode of the voltage modulation control signal based on the mode determination vector and the preset mode determination library;

基于生成方式，生成电压调制控制信号。Based on the generation manner, a voltage modulated control signal is generated.

显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1.一种充电控制方法，其特征在于，包括：1. A charging control method, characterized in that, comprising: 获取锂电池组的当前充电状态；Obtain the current state of charge of the lithium battery pack; 基于所述当前充电状态，确定电压调制控制信号；determining a voltage modulation control signal based on the current state of charge; 基于所述电压调制信号控制连接至限流电阻和转换器之间的电压调制模块对加载在锂电池组上的充电电压进行调制。Based on the voltage modulation signal, the voltage modulation module connected between the current limiting resistor and the converter is controlled to modulate the charging voltage loaded on the lithium battery pack. 2.如权利要求1所述的充电控制方法，其特征在于，所述获取锂电池组的当前充电状态，包括：2. The charging control method according to claim 1, wherein said obtaining the current state of charge of the lithium battery pack comprises: 获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack; 所述基于所述当前充电状态，确定电压调制控制信号，包括：The determining the voltage modulation control signal based on the current state of charge includes: 对所述电池电压进行预处理，获取标示电压；Preprocessing the battery voltage to obtain a marked voltage; 基于所述标示电压，确定所述电压调制控制信号的生成方式；determining a method of generating the voltage modulation control signal based on the marked voltage; 基于所述生成方式，生成所述电压调制控制信号。Based on the generation manner, the voltage modulation control signal is generated. 3.如权利要求2所述的充电控制方法，其特征在于，所述基于所述标示电压，确定所述电压调制控制信号的生成方式，包括：3. The charging control method according to claim 2, wherein the determining the generation method of the voltage modulation control signal based on the marked voltage comprises: 当所述标示电压大于预设的第一标准电压时，确定所述生成方式为预设的第一模式；When the indicated voltage is greater than a preset first standard voltage, determine that the generation method is a preset first mode; 当所述标示电压小于等于所述第一标准电压且大于预设的第二标准电压时，确定所述生成方式为预设的第二模式；When the indicated voltage is less than or equal to the first standard voltage and greater than a preset second standard voltage, determining that the generation method is a preset second mode; 当所述标示电压小于等于所述第二标准电压且大于预设的第三标准电压时，确定所述生成方式为预设的第三模式；When the indicated voltage is less than or equal to the second standard voltage and greater than a preset third standard voltage, determining that the generation method is a preset third mode; 当所述标示电压小于等于所述第三标准电压且大于预设的第四标准电压时，确定所述生成方式为预设的第四模式；When the indicated voltage is less than or equal to the third standard voltage and greater than a preset fourth standard voltage, determining that the generation method is a preset fourth mode; 当所述标示电压小于等于所述第四标准电压时，确定所述生成方式为预设的第五模式；When the indicated voltage is less than or equal to the fourth standard voltage, determining that the generation method is a preset fifth mode; 其中，所述第一标准电压、所述第二标准电压、所述第三标准电压和所述第四标准电压依次减小；通过所述第一模式、所述第二模式、所述第三模式、所述第四模式和所述第五模式生成的电压调制控制信号的占空比依次减小。Wherein, the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage decrease sequentially; through the first mode, the second mode, the third The duty cycles of the voltage modulation control signals generated in the first mode, the fourth mode and the fifth mode decrease sequentially. 4.如权利要求1所述的充电控制方法，其特征在于，所述获取锂电池组的当前充电状态，包括：4. The charging control method according to claim 1, wherein said obtaining the current state of charge of the lithium battery pack comprises: 获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack; 获取锂电池组的第一类型识别信息；Obtain the first type identification information of the lithium battery pack; 获取转换器的输出电压；Obtain the output voltage of the converter; 获取所述转换器的第二类型识别信息；Obtaining the second type identification information of the converter; 将所述电池电压、所述输出电压、所述第一类型识别信息和所述第二类型识别信息，作为所述当前充电状态的状态数据。The battery voltage, the output voltage, the first type identification information and the second type identification information are used as state data of the current charging state. 5.如权利要求4所述的充电控制方法，其特征在于，所述基于所述当前充电状态，确定电压调制控制信号，包括：5. The charging control method according to claim 4, wherein the determining the voltage modulation control signal based on the current charging state comprises: 计算所述输出电压与所述电池电压的差值；calculating a difference between the output voltage and the battery voltage; 基于所述差值，确定第一参数值；determining a first parameter value based on the difference; 基于所述第一类型识别信息，确定第二参数值；determining a second parameter value based on the first type identification information; 基于所述第二类型识别信息，确定第三参数值；determining a third parameter value based on the second type identification information; 基于所述第一参数值、所述第二参数值和所述第三参数值，生成方式确定向量；generating a mode determination vector based on the first parameter value, the second parameter value, and the third parameter value; 基于方式确定向量和预设的方式确定库，确定所述电压调制控制信号的生成方式；Determine the generation mode of the voltage modulation control signal based on the mode determination vector and the preset mode determination library; 基于所述生成方式，生成所述电压调制控制信号。Based on the generation manner, the voltage modulation control signal is generated. 6.一种充电控制系统，其特征在于，包括：6. A charging control system, characterized in that it comprises: 获取模块，用于获取锂电池组的当前充电状态；Obtain module, be used for obtaining the current state of charge of lithium battery pack; 确定模块，用于基于所述当前充电状态，确定电压调制控制信号；A determining module, configured to determine a voltage modulation control signal based on the current charging state; 调制模块，用于基于所述电压调制信号控制连接至限流电阻和转换器之间的电压调制模块对加载在锂电池组上的充电电压进行调制。The modulation module is used to control the voltage modulation module connected between the current limiting resistor and the converter to modulate the charging voltage loaded on the lithium battery pack based on the voltage modulation signal. 7.如权利要求6所述的充电控制系统，其特征在于，所述获取模块获取锂电池组的当前充电状态，执行如下操作：7. The charging control system according to claim 6, wherein the acquisition module acquires the current state of charge of the lithium battery pack, and performs the following operations: 获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack; 所述确定模块基于所述当前充电状态，确定电压调制控制信号，执行如下操作：The determination module determines the voltage modulation control signal based on the current charging state, and performs the following operations: 对所述电池电压进行预处理，获取标示电压；Preprocessing the battery voltage to obtain a marked voltage; 基于所述标示电压，确定所述电压调制控制信号的生成方式；determining a method of generating the voltage modulation control signal based on the marked voltage; 基于所述生成方式，生成所述电压调制控制信号。Based on the generation manner, the voltage modulation control signal is generated. 8.如权利要求7所述的充电控制系统，其特征在于，所述确定模块基于所述标示电压，确定所述电压调制控制信号的生成方式，执行如下操作：8. The charging control system according to claim 7, wherein the determination module determines the generation method of the voltage modulation control signal based on the marked voltage, and performs the following operations: 当所述标示电压大于预设的第一标准电压时，确定所述生成方式为预设的第一模式；When the indicated voltage is greater than a preset first standard voltage, determine that the generation method is a preset first mode; 当所述标示电压小于等于所述第一标准电压且大于预设的第二标准电压时，确定所述生成方式为预设的第二模式；When the indicated voltage is less than or equal to the first standard voltage and greater than a preset second standard voltage, determining that the generation method is a preset second mode; 当所述标示电压小于等于所述第二标准电压且大于预设的第三标准电压时，确定所述生成方式为预设的第三模式；When the indicated voltage is less than or equal to the second standard voltage and greater than a preset third standard voltage, determining that the generation method is a preset third mode; 当所述标示电压小于等于所述第三标准电压且大于预设的第四标准电压时，确定所述生成方式为预设的第四模式；When the indicated voltage is less than or equal to the third standard voltage and greater than a preset fourth standard voltage, determining that the generation method is a preset fourth mode; 当所述标示电压小于等于所述第四标准电压时，确定所述生成方式为预设的第五模式；When the indicated voltage is less than or equal to the fourth standard voltage, determining that the generation method is a preset fifth mode; 其中，所述第一标准电压、所述第二标准电压、所述第三标准电压和所述第四标准电压依次减小；通过所述第一模式、所述第二模式、所述第三模式、所述第四模式和所述第五模式生成的电压调制控制信号的占空比依次减小。Wherein, the first standard voltage, the second standard voltage, the third standard voltage and the fourth standard voltage decrease sequentially; through the first mode, the second mode, the third The duty cycles of the voltage modulation control signals generated in the first mode, the fourth mode and the fifth mode decrease sequentially. 9.如权利要求6所述的充电控制系统，其特征在于，所述获取模块获取锂电池组的当前充电状态，执行如下操作：9. The charging control system according to claim 6, wherein the acquisition module acquires the current state of charge of the lithium battery pack, and performs the following operations: 获取锂电池组的电池电压；Obtain the battery voltage of the lithium battery pack; 获取锂电池组的第一类型识别信息；Obtain the first type identification information of the lithium battery pack; 获取转换器的输出电压；Obtain the output voltage of the converter; 获取所述转换器的第二类型识别信息；Obtaining the second type identification information of the converter; 将所述电池电压、所述输出电压、所述第一类型识别信息和所述第二类型识别信息，作为所述当前充电状态的状态数据。The battery voltage, the output voltage, the first type identification information and the second type identification information are used as state data of the current charging state. 10.如权利要求9所述的充电控制系统，其特征在于，所述确定模块基于所述当前充电状态，确定电压调制控制信号，执行如下操作：10. The charging control system according to claim 9, wherein the determining module determines the voltage modulation control signal based on the current charging state, and performs the following operations: 计算所述输出电压与所述电池电压的差值；calculating a difference between the output voltage and the battery voltage; 基于所述差值，确定第一参数值；determining a first parameter value based on the difference; 基于所述第一类型识别信息，确定第二参数值；determining a second parameter value based on the first type identification information; 基于所述第二类型识别信息，确定第三参数值；determining a third parameter value based on the second type identification information; 基于所述第一参数值、所述第二参数值和所述第三参数值，生成方式确定向量；generating a mode determination vector based on the first parameter value, the second parameter value, and the third parameter value; 基于方式确定向量和预设的方式确定库，确定所述电压调制控制信号的生成方式；Determine the generation mode of the voltage modulation control signal based on the mode determination vector and the preset mode determination library; 基于所述生成方式，生成所述电压调制控制信号。Based on the generation manner, the voltage modulation control signal is generated.
CN202211047277.0A 2022-07-11 2022-08-29 Charging control method and system Pending CN115411813A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2022-0084738 2022-07-11
KR1020220084738A KR102480906B1 (en) 2022-07-11 2022-07-11 Apparatus for controlling pulse width modulation for pre-charge of battery pack

Publications (1)

Publication Number Publication Date
CN115411813A true CN115411813A (en) 2022-11-29

Family

ID=84161772

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211047277.0A Pending CN115411813A (en) 2022-07-11 2022-08-29 Charging control method and system

Country Status (3)

Country Link
KR (1) KR102480906B1 (en)
CN (1) CN115411813A (en)
WO (1) WO2024014642A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102480906B1 (en) * 2022-07-11 2022-12-23 (주)아이에이파워트론 Apparatus for controlling pulse width modulation for pre-charge of battery pack

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150357849A1 (en) * 2008-06-03 2015-12-10 Intersil Americas LLC Usb charger using sensor-less current limit
CN106972566A (en) * 2017-04-11 2017-07-21 深圳市华星光电技术有限公司 Battery charger and method for charging batteries
CN111114384A (en) * 2020-02-27 2020-05-08 上海电机学院 A charging control method for electric vehicle power lithium battery
CN112290646A (en) * 2020-11-18 2021-01-29 江苏润石科技有限公司 Lithium battery charging method and device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101499990B1 (en) * 2009-03-19 2015-03-06 현대자동차주식회사 circuit for initial charging a battery of a car
JP2013219964A (en) * 2012-04-11 2013-10-24 Hitachi Maxell Ltd Battery pack with charge/discharge control switch
KR20170013670A (en) * 2015-07-28 2017-02-07 엘에스산전 주식회사 A control apparatus for precharging of high voltage battery for electric vehicle
KR102082380B1 (en) * 2016-11-02 2020-02-28 주식회사 엘지화학 Method and system for controling driving current of load
KR102474608B1 (en) 2017-12-04 2022-12-06 현대자동차주식회사 Power module using stack structure and 3 phase driving module for electric vehicle using the same
KR102480906B1 (en) * 2022-07-11 2022-12-23 (주)아이에이파워트론 Apparatus for controlling pulse width modulation for pre-charge of battery pack

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150357849A1 (en) * 2008-06-03 2015-12-10 Intersil Americas LLC Usb charger using sensor-less current limit
CN106972566A (en) * 2017-04-11 2017-07-21 深圳市华星光电技术有限公司 Battery charger and method for charging batteries
CN111114384A (en) * 2020-02-27 2020-05-08 上海电机学院 A charging control method for electric vehicle power lithium battery
CN112290646A (en) * 2020-11-18 2021-01-29 江苏润石科技有限公司 Lithium battery charging method and device

Also Published As

Publication number Publication date
WO2024014642A1 (en) 2024-01-18
KR102480906B1 (en) 2022-12-23

Similar Documents

Publication Publication Date Title
CN110945738B (en) Charging time calculation method and charging control device
US8143862B2 (en) Circuits and methods for battery charging
CN102088244B (en) Maximum power point tracking converter and maximum power point tracking method
CN101227098B (en) Charging apparatus and method
US9315166B2 (en) Techniques for synchronous rectification control of DC-DC converters in electrified vehicles
WO2015111006A1 (en) Switching-mode power supplies
CN108859798A (en) Electricity generation system and electricity-generating method for fuel-cell vehicle
WO2022038567A1 (en) Control method of locomotive dynamic device, locomotive dynamic device and locomotive
JP2009207239A (en) Charging controller for solar cells
KR101755911B1 (en) Apparatus for estimating soc of lithium ion battery and method thereof
CN115411813A (en) Charging control method and system
US10340729B2 (en) Apparatus and method for controlling electric currents with pulse width modulation signal
CN111149274A (en) Power management system for battery-powered audio devices
US8704496B2 (en) Charge control system
US9401618B2 (en) Control circuit, and power generation device having the same
KR20140120025A (en) Charging circuit for rechareable battery, battery charger with the same and charging method for rechareable battery
CN111251912B (en) Electric vehicle, on-board charger and control method and control device thereof
US6771048B2 (en) Battery state monitoring circuit
CN205911777U (en) A device and electronic equipment for battery charges
US20250373059A1 (en) Adaptive dc link voltage regulation for battery charger
JP3097811B2 (en) Power supply circuit for slave device
TW201332246A (en) Charging/discharging control apparatus and method of using microprocessor in charging/discharging control
JP2013031274A (en) Charging system of secondary battery connected in series
JP2002345156A (en) Rechargeable battery or rechargeable battery pack
CN212811357U (en) Marine voltage-stabilizing constant-current lead-acid battery charger

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20221129

RJ01 Rejection of invention patent application after publication