CN107709080B - 电池管理装置以及电源*** - Google Patents
电池管理装置以及电源*** Download PDFInfo
- Publication number
- CN107709080B CN107709080B CN201680033360.9A CN201680033360A CN107709080B CN 107709080 B CN107709080 B CN 107709080B CN 201680033360 A CN201680033360 A CN 201680033360A CN 107709080 B CN107709080 B CN 107709080B
- Authority
- CN
- China
- Prior art keywords
- secondary battery
- detection unit
- abnormality
- overvoltage
- unit
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/15—Preventing overcharging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/06—Two-wire systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00308—Overvoltage protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/80—Time limits
-
- 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
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
驱动部对***在二次电池与对电动机进行驱动的逆变器之间的电流路径的开关进行控制。第一异常检测部在检测到二次电池的异常时,对驱动部指示开关的关断。第二异常检测部与第一异常检测部并联地设置,在检测到二次电池的异常时,对驱动部指示开关的关断。在从ECU指示了二次电池的放电停止禁止的情况下,第一异常检测部即使检测到二次电池的异常,也保留对驱动部的开关的关断指示。与来自ECU的指示无关地,第二异常检测部在从检测到二次电池的异常起经过一定时间之后,对驱动部指示开关的关断。
Description
技术领域
本发明涉及对搭载于车辆的二次电池进行管理的电池管理装置以及电源***。
背景技术
近年来,EV(Electric Vehicle:电动汽车)、混合动力车正在普及。作为车载用的二次电池,锂离子电池、镍氢电池正在普及。二次电池需要进行电压、电流、温度的管理,特别是,在锂离子电池中,要求严格的管理。若产生过电压、过电流,则会对电池造成负担,从而电池寿命变短。因此,电池管理装置若检测到这些异常,则进行控制,使得打开接触器,将二次电池与车辆侧电分离,从而保护二次电池(例如,参照专利文献1)。
为了使过电压检测时的接触器的开控制更可靠,多数情况下使用将两个过电压检测电路并联地设置的冗余结构。
在先技术文献
专利文献
专利文献1:日本特开2009-159755号公报
发明内容
发明要解决的课题
若在过电压检测时接触器打开,则从二次电池对电动机的供电将停止,因此电动机的旋转停止。在未搭载发动机的纯粹的EV的情况下,电动机停止,并且车辆行驶也停止。若在行驶中车辆突然停止驱动,则有可能与其它车辆碰撞,是危险的。因此,作为车辆侧的请求,要求即使在电池产生了异常的情况下,也尽可能使车辆停止在安全的位置。
本发明是鉴于这样的状况而完成的,其目的在于,提供一种在电池产生了异常时在确保车辆的安全性的同时保护电池的技术。
用于解决课题的手段
为了解决上述课题,本发明的某个方式的电池管理装置是对应搭载于车辆的二次电池进行管理的电池管理装置,具备:驱动部,对***在所述二次电池与对电动机进行驱动的逆变器之间的电流路径的开关进行驱动;第一异常检测部,在检测到所述二次电池的异常时,对所述驱动部指示所述开关的关断;以及第二异常检测部,与所述第一异常检测部并联地设置,在检测到所述二次电池的异常时,对所述驱动部指示所述开关的关断。在从对所述车辆进行管理控制的电子控制部指示了所述二次电池的放电停止禁止的情况下,所述第一异常检测部即使检测到所述二次电池的异常,也保留对所述驱动部的所述开关的关断指示,与来自所述电子控制部的指示无关地,所述第二异常检测部在从检测到所述二次电池的异常起经过一定时间后,对所述驱动部指示所述开关的关断。
发明效果
根据本发明,在电池产生了异常时,在确保车辆的安全性的同时保护电池。
附图说明
图1是用于说明本发明的实施方式涉及的电源***的图。
图2是示出图1的第一过电压检测部和第二过电压检测部的结构例的图。
图3的(a)~图3(c)是示出本发明的实施方式涉及的、电池管理装置的过电压检测时的动作例的时序图。
图4是用于说明本发明的实施方式涉及的、电池管理装置的过电压检测时的动作的流程图。
图5是用于说明在通过道口时产生了过电压的情况下的处理例的图。
图6是用于说明变形例涉及的电源***的图。
具体实施方式
图1是用于说明本发明的实施方式涉及的电源***1的图。电源***1搭载于车辆,并经由接触器RL以及逆变器2与电动机3连接。逆变器2在动力运行时将从电源***1供给的直流电力变换为交流电力并供给到电动机3。在再生时,将从电动机3供给的交流电力变换为直流电力并供给到电源***1。接触器RL***到二次电池20与电动机3之间的电流路径。另外,接触器RL是用于将电源***1与车辆侧进行电切断的器件的一个例子,只要是具备能够切断两者间的电流的开关功能的器件,则也可以使用其它种类的器件。
ECU(Electronic Control Unit:电子控制单元)4以电子方式对车辆进行管理控制。例如,从车辆内的各种传感器收集车辆信息,并基于该车辆信息对车辆内的各种辅机输出控制信号。ECU4通过CAN(Controller Area Network:控制器局域网络)等车内网络与电源***1连接,在两者之间交换控制信号。
电源***1具备二次电池20以及电池管理装置10。二次电池20由多个电池单元串联连接而形成。在本实施方式中,可设想使用锂离子电池作为电池单元。锂离子电池的标称电压为3.6~3.7V,根据电动机3的种类来决定电池单元的串联数。在锂离子电池中,需要严格地保持单元平衡,按每个单元检测电压。在镍氢电池中,无需像锂离子电池那样严格地以单元单位对电压进行管理,也可以只是二次电池20整体的电压管理。
电池管理装置10具备第一过电压检测部11、第二过电压检测部12以及驱动部13。在图1的电池管理装置10中,只描绘了在本实施方式中关注的与过电压检测处理相关的结构,以下,以由电池管理装置10进行的过电压检测处理为中心进行说明。
驱动部13生成用于控制接触器RL的开闭状态的驱动信号,并供给到接触器RL。在接触器RL由电磁式继电器构成的情况下,驱动部13生成用于对线圈进行励磁/消磁的驱动电流,并供给到该线圈。
第一过电压检测部11和第二过电压检测部12对二次电池20并联地设置。第一过电压检测部11在检测到二次电池20的过电压时,对驱动部13指示接触器RL的开放(关断(turnoff))。第二过电压检测部12也在检测到二次电池20的过电压时,对驱动部13指示接触器RL的开放(关断)。像这样,过电压检测部被冗余化,即使任一个产生不良,也能够进行过电压检测。
在本实施方式中,并不是将第一过电压检测部11和第二过电压检测部12单纯地冗余化,而是使它们分别具有作用担当。第一过电压检测部11在从ECU4指示了停止禁止的情况下,即使检测到二次电池20的过电压,也会保留指示接触器开放的开信号向驱动部13的输出。在从ECU4指示了停止许可的情况下,在检测到二次电池20的过电压时,第一过电压检测部11立刻将上述开信号输出到驱动部13。
另一方面,与来自ECU4的指示无关地,第二过电压检测部12在从检测到二次电池20的过电压起经过一定时间(例如,10秒)后,将指示接触器开放的开信号输出到驱动部13。从检测到过电压起直到输出开信号为止的延迟时间被设定为,基于二次电池20的耐压规格、用于使车辆安全地停止的时间等而由设计者导出的值。
此外,在本实施方式中,在第一过电压检测部11和第二过电压检测部12中改变了控制方法。前者由软件控制构成,后者由硬件控制构成。
图2是示出图1的第一过电压检测部11和第二过电压检测部12的结构例的图。在图2中,第一过电压检测部11由微控制器11a构成。在微控制器11a内,内置有电压检测电路、A/D变换器、按照固件进行动作的CPU。该电压检测电路检测二次电池20的两端电压,将检测的电压输出到A/D变换器。该A/D变换器将输入的模拟电压变换为数字值并输出到CPU。在该CPU,从该A/D变换器输入二次电池20的电压值信号,并从ECU4输入放电停止许可/禁止信号。该CPU基于该信号来判定是将接触器RL开放还是关闭,并将开/闭信号输出到驱动部13。
第二过电压检测部12使用差动放大器12a、比较器12b以及延迟电路12c来构成。差动放大器12a对二次电池20的两端电压进行放大,并输出到比较器12b的一个输入端子。在比较器12b的另一个输入端子输入过电压检测用的阈值电压Vth。若输入的二次电池20的电压超过阈值电压Vth,则比较器12b输出显著电平(例如,高电平)信号。在二次电池20的电压为阈值电压Vth以下的情况下,输出非显著电平(例如,低电平)信号。延迟电路12c使比较器12b的输出信号延迟一定时间,并输出到驱动部13。
差动放大器12a以及比较器12b分别能够由运算放大器和电阻的组合构成。延迟电路12c例如能够由多个逆变器的级联连接构成。像这样,第二过电压检测部12仅由模拟元件构成。在第二过电压检测部12不输入来自ECU4的放电停止许可/禁止信号。
图3的(a)~图3(c)是示出本发明的实施方式涉及的、电池管理装置10的过电压检测时的动作例的时序图。图3的(a)是从ECU4对第一过电压检测部11输出了放电停止许可信号(放电停止许可信号“可”)的情况下的例子。在该例子中,第一过电压检测部11若检测到过电压,则无延迟地使接触器开闭信号从闭转变到开。在该时间点,接触器RL打开,从二次电池20向电动机3的放电停止。第二过电压检测部12在从检测到过电压起经过设定时间后,使接触器开闭信号从闭转变到开。从该时间点起,过电压保护的冗余化成立。假使在第一过电压检测部11产生了不良,也能够从该时间点起打开接触器RL。
图3的(b)是从ECU4对第一过电压检测部11输出了放电停止禁止信号(放电停止许可信号“否”)的情况下的例子。在该例子中,第一过电压检测部11在从检测到过电压起经过设定时间后,使接触器开闭信号从闭转变到开。第二过电压检测部12也在从检测到过电压起经过设定时间后,使接触器开闭信号从闭转变到开。在该时间点,接触器RL打开,从二次电池20向电动机3的放电停止。此外,从接触器RL打开的时间点起,过电压保护的冗余化成立。
另外,在放电停止禁止信号输入到第一过电压检测部11的状态下,第一过电压检测部11也可以是按其原样地将接触器开闭信号维持为闭的设定。如图3的(b)所示,即使在放电停止禁止信号输入到第一过电压检测部11的状态下,在经过设定时间后从闭转变到开的设定也具有如下优点,即,即使在第二过电压检测部12产生了不良的情况下,也能够打开接触器RL。
图3的(c)是在产生过电压后从ECU4向第一过电压检测部11的指示信号从放电停止禁止切换为放电停止许可的情况下的例子。在该例子中,第一过电压检测部11即使检测到过电压,也不会即刻使接触器开闭信号从闭转变到开,而是使其在来自ECU4的指示信号切换为放电停止许可的时间点转变到开。在该时间点,接触器RL打开,从二次电池20向电动机3的放电停止。第二过电压检测部12在从检测到过电压起经过设定时间后,使接触器开闭信号从闭转变到开。从该时间点起,过电压保护的冗余化成立。
图4是用于说明本发明的实施方式涉及的、电池管理装置10的过电压检测时的动作的流程图。若从ECU4指示了行驶开始,则电池管理装置10将接触器RL闭合(S10)。若检测到过电压(S20的“是”),则电池管理装置10确认来自ECU4的放电停止信号是许可(可)还是禁止(否)(S30)。如果是许可(可)(S30的“是”),则立刻打开接触器RL(S50)。如果是禁止(否)(S30的“否”),则在经过了设定时间之后(S40的“是”)将接触器RL打开(S50)。
以下,对判定ECU4是输出放电停止许可信号还是输出放电停止禁止信号的判定基准的例子进行说明。在最简单的例子中,在车辆为停止中的情况下,输出放电停止许可信号,在车辆为行驶中的情况下,输出放电停止禁止信号。在车辆为停止中的情况下,即使从二次电池20向电动机3的放电停止,也是比较安全的。另一方面,若在行驶中电动机3突然停止,则不能确保安全性。
图5是用于说明在通过道口时产生了过电压的情况下的处理例的图。在通过道口之前,在车辆V1在停止线之前停止的状态下产生了过电压的情况下,在本实施方式中,从ECU4对第一过电压检测部11输出放电停止许可信号,因此电池管理装置10立刻打开接触器RL而使放电停止。
若在通过道口的过程中突然停止行驶,则是危险的。在通过道口的过程中产生了过电压的情况下,在本实施方式中,从ECU4对第一过电压检测部11输出放电停止禁止信号,因此电池管理装置10在经过设定时间后打开接触器RL。如果从产生过电压起到放电停止为止存在例如10秒左右的富余,则能够完成道口的通过而从道口内脱离。
作为上述的判定基准的另一个例子,也可以是,在车辆速度为设定值(例如,时速10km)以下的情况下输出放电停止许可信号,并在超过设定值的情况下输出放电停止禁止信号。如果是低速,则危险度相对地下降,因此也能够进行优先电池保护的设计。此外,作为另一个例子,也可以是,在直行中的情况下输出放电停止许可信号,在转弯中的情况下输出放电停止禁止信号。因为转弯中还有可能与反向车碰撞,所以危险度比直行中提高。因此,设为在转弯结束所需的时间内不使车辆行驶停止的设计。
像以上说明的那样,根据本实施方式,即使在危险度高的状态下在二次电池20产生过电压,也不是马上使放电停止,而是在经过一定时间后使放电停止。由此,能够防止车辆在危险的状态下突然停止,能够谋求车辆的安全性与电池保护的平衡。此外,通过将过电压检测部冗余化,从而能够更可靠地防止在二次电池20的过电压状态下进行充放电。
此外,在将过电压检测部冗余化时,通过将一方设为软件控制,并将另一方设为硬件控制,从而能够使双方的功能停止的概率进一步下降。此外,通过将来自ECU4的放电停止许可/禁止信号输入到进行软件控制的过电压检测部,从而能够抑制电路设计变得复杂。在前者中,只要将来自ECU4的信号输入到微控制器的外部输入端口即可,但是在后者中,需要追加设置AND电路等元件。因此,将来自ECU4的信号输入到前者,更能够抑制电路规模以及成本的增大。
以上,基于实施方式对本发明进行了说明。本领域技术人员能够理解,这些实施方式是例示,能够对它们的各构成要素、各处理程序的组合进行各种变形例,此外,这样的变形例也属于本发明的范围。
在上述的说明中,以二次电池20整体的过电压检测为例进行了说明,但是在各单元电池的过电压检测的情况下也是相同的。在使用锂离子电池的情况下,以单元单位来检测过电压。在该情况下,第二过电压检测部12需要对每个单元电池进行设置。第一过电压检测部11能够使用ASIC等将多个单元电池的电压检测部组件化。
在上述的说明中,对将过电压检测部冗余化的例子进行了说明。关于这一点,还能够将检测其它的电池异常的检测部冗余化,并应用上述的处理。
图6是用于说明变形例涉及的电源***1的图。在图6中,示出了将过电流检测部冗余化的结构。为了检测过电流,与二次电池20串联地设置第一电阻R1以及第二电阻R2。第一电阻R1以及第二电阻R2由分流电阻构成。第一过电流检测部15根据第一电阻R1的两端电压来检测流过二次电池20的电流,并检测过电流。第二过电流检测部16根据第二电阻R2的两端电压来检测流过二次电池20的电流。第一过电流检测部15以及第二过电流检测部16也与第一过电压检测部11以及第二过电压检测部12同样地,将前者设为软件控制,并将后者设为硬件控制,来自ECU4的放电停止许可/禁止信号仅输入到前者。另外,也可以代替第一电阻R1以及第二电阻R2而使用霍尔元件。
此外,也可以为了检测二次电池20的温度异常而设置两个热敏电阻,从而将温度异常检测部冗余化。此外,也可以将检测二次电池20的电压下降异常的检测部冗余化。
附图标记说明
1电源***;2逆变器;3电动机;4ECU;10电池管理装置;11第一过电压检测部;11a微控制器;12第二过电压检测部;12a差动放大器;12b比较器;12c延迟电路;13驱动部;15第一过电流检测部;16第二过电流检测部;RL接触器;R1第一电阻;R2第二电阻;20二次电池;V1车辆。
Claims (4)
1.一种电池管理装置,管理应搭载于车辆的二次电池,具备:
驱动部,其对***在所述二次电池与对电动机进行驱动的逆变器之间的电流路径的开关进行驱动;
第一异常检测部,其在检测到所述二次电池的异常时,对所述驱动部指示所述开关的关断;以及
第二异常检测部,其与所述第一异常检测部并联地设置,在检测到所述二次电池的异常时,对所述驱动部指示所述开关的关断,
在从对所述车辆进行管理控制的电子控制部指示了所述二次电池的放电停止禁止的情况下,所述第一异常检测部即使检测到所述二次电池的异常,也保留对所述驱动部的所述开关的关断指示,
与来自所述电子控制部的指示无关地,所述第二异常检测部在从检测到所述二次电池的异常起经过一定时间后,对所述驱动部指示所述开关的关断。
2.根据权利要求1所述的电池管理装置,在从所述电子控制部指示了所述二次电池的放电停止禁止的情况下,所述第一异常检测部在从检测到所述二次电池的异常起经过所述一定时间后,对所述驱动部指示所述开关的关断。
3.根据权利要求1或2所述的电池管理装置,所述第一异常检测部以及所述第二异常检测部是在检测到所述二次电池的过电压时对所述驱动部指示所述开关的关断的第一过电压检测部以及第二过电压检测部,
所述第一过电压检测部具有:
微控制器,其输入所述二次电池的电压以及来自所述电子控制部的信号,并对所述驱动部输出指示信号,
所述第二过电压检测部具有:
比较器,其对所述二次电池的电压和过电压检测用电压进行比较;以及
延迟电路,其使所述比较器的输出信号延迟所述一定时间。
4.一种电源***,具备:
应搭载于车辆的二次电池;以及
对所述二次电池进行管理的权利要求1至3中的任一项所述的电池管理装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015090628 | 2015-04-27 | ||
JP2015-090628 | 2015-04-27 | ||
PCT/JP2016/001941 WO2016174828A1 (ja) | 2015-04-27 | 2016-04-07 | 電池管理装置、及び電源システム |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107709080A CN107709080A (zh) | 2018-02-16 |
CN107709080B true CN107709080B (zh) | 2020-10-27 |
Family
ID=57199090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201680033360.9A Active CN107709080B (zh) | 2015-04-27 | 2016-04-07 | 电池管理装置以及电源*** |
Country Status (4)
Country | Link |
---|---|
US (2) | US10576827B2 (zh) |
JP (1) | JP6793637B2 (zh) |
CN (1) | CN107709080B (zh) |
WO (1) | WO2016174828A1 (zh) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11173806B2 (en) | 2017-01-11 | 2021-11-16 | Sanyo Electric Co., Ltd. | Management device and power storage system |
WO2019146520A1 (ja) | 2018-01-26 | 2019-08-01 | Necエナジーデバイス株式会社 | 電池制御装置、電池パック、電池制御方法、およびプログラム |
CN110350262B (zh) * | 2018-04-02 | 2021-03-05 | 南京德朔实业有限公司 | 电池包及充电组合 |
KR101978268B1 (ko) * | 2018-07-03 | 2019-08-28 | 현대오트론 주식회사 | 배터리 관리 시스템의 고장 진단 회로 |
CN110884387A (zh) * | 2018-09-11 | 2020-03-17 | 南昌大学 | 智能电动车 |
EP3627170B1 (en) | 2018-09-18 | 2023-03-22 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | A sensor arrangement and a method for monitoring a storage system |
JP7145391B2 (ja) * | 2018-11-28 | 2022-10-03 | トヨタ自動車株式会社 | 電源システム |
CN111845443B (zh) * | 2019-04-30 | 2022-02-22 | 长城汽车股份有限公司 | 电源切换方法及切换装置 |
KR20210042655A (ko) * | 2019-10-10 | 2021-04-20 | 주식회사 엘지화학 | 히팅 패드 제어 장치 |
JP7354770B2 (ja) * | 2019-10-31 | 2023-10-03 | ブラザー工業株式会社 | 情報処理装置、情報処理装置の制御方法、及びプログラム |
EP4135147B1 (en) * | 2020-04-06 | 2024-02-21 | Nissan Motor Co., Ltd. | Battery-abnormality warning method and battery-abnormality warning device |
CN114363106B (zh) * | 2020-09-29 | 2024-01-05 | 深圳英集芯科技股份有限公司 | 单线通信设备、通信***及单线通信方法 |
US20230395876A1 (en) * | 2020-10-19 | 2023-12-07 | Auto Motive Power Inc. | Solid-State Battery Management System for High Current Applications |
JPWO2022190401A1 (zh) * | 2021-03-10 | 2022-09-15 | ||
JP2022189212A (ja) * | 2021-06-11 | 2022-12-22 | パナソニックIpマネジメント株式会社 | 車載用遮断装置および遮断方法 |
FR3136202A1 (fr) * | 2022-06-07 | 2023-12-08 | Psa Automobiles Sa | Surveillance de surtensions aux bornes d’une machine motrice électrique d’un véhicule |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010203790A (ja) * | 2009-02-27 | 2010-09-16 | Toyota Motor Corp | 車載二次電池の過充電検出装置 |
JP2011127969A (ja) * | 2009-12-16 | 2011-06-30 | Toshiba Corp | 二次電池装置および車両 |
CN102753396A (zh) * | 2011-01-31 | 2012-10-24 | 丰田自动车株式会社 | 电源管理装置 |
CN103036271A (zh) * | 2011-10-04 | 2013-04-10 | 三洋电机株式会社 | 充电器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5160882B2 (ja) | 2007-12-27 | 2013-03-13 | 本田技研工業株式会社 | モータ駆動回路 |
JP5779060B2 (ja) * | 2011-09-27 | 2015-09-16 | プライムアースEvエナジー株式会社 | 電圧検出回路 |
-
2016
- 2016-04-07 CN CN201680033360.9A patent/CN107709080B/zh active Active
- 2016-04-07 JP JP2017515373A patent/JP6793637B2/ja active Active
- 2016-04-07 US US15/570,239 patent/US10576827B2/en active Active
- 2016-04-07 WO PCT/JP2016/001941 patent/WO2016174828A1/ja active Application Filing
-
2020
- 2020-01-02 US US16/733,136 patent/US11220183B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010203790A (ja) * | 2009-02-27 | 2010-09-16 | Toyota Motor Corp | 車載二次電池の過充電検出装置 |
JP2011127969A (ja) * | 2009-12-16 | 2011-06-30 | Toshiba Corp | 二次電池装置および車両 |
CN102753396A (zh) * | 2011-01-31 | 2012-10-24 | 丰田自动车株式会社 | 电源管理装置 |
CN103036271A (zh) * | 2011-10-04 | 2013-04-10 | 三洋电机株式会社 | 充电器 |
Also Published As
Publication number | Publication date |
---|---|
JP6793637B2 (ja) | 2020-12-02 |
US10576827B2 (en) | 2020-03-03 |
US20180093569A1 (en) | 2018-04-05 |
US20200130509A1 (en) | 2020-04-30 |
JPWO2016174828A1 (ja) | 2018-03-29 |
WO2016174828A1 (ja) | 2016-11-03 |
US11220183B2 (en) | 2022-01-11 |
CN107709080A (zh) | 2018-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107709080B (zh) | 电池管理装置以及电源*** | |
JP5286456B1 (ja) | 電力制御装置 | |
EP3385108B1 (en) | System and method for preventing abnormal opening of contactor through real-time operation detection | |
US11381072B2 (en) | Quick battery disconnect system for high current circuits | |
US20150103448A1 (en) | Battery Management System, Motor Vehicle and Battery Module | |
KR20160127003A (ko) | 배터리 시스템 및 상기 배터리 시스템의 작동 방법 | |
JP6662282B2 (ja) | 電源システム | |
US20170187179A1 (en) | Junction box | |
EP2189733A1 (en) | Heater Controller and method for operating a heater controller | |
JP6718350B2 (ja) | 電圧検出装置 | |
EP3790139A1 (en) | Battery management and protection system | |
US20150180091A1 (en) | Accumulator battery protected against external short-circuits | |
JP2017093008A (ja) | コンタクタ故障判定装置およびコンタクタ故障判定方法 | |
WO2021039130A1 (ja) | 通電制御装置および電源ユニット | |
JP6647839B2 (ja) | 蓄電システム | |
US11447014B2 (en) | Fault detection device | |
JP2015221594A (ja) | 自動車の電源装置 | |
WO2022230636A1 (ja) | 車載用切替装置 | |
WO2023026874A1 (ja) | 車両用電源システム | |
JP2021040475A (ja) | 通電制御装置および電源ユニット | |
JP2021141780A (ja) | 給電制御装置、及び給電制御方法 | |
CN115441530A (zh) | 控制装置和包括该控制装置的载具电力分配架构 | |
KR20200059460A (ko) | 고전력 시스템의 릴레이 스위치 정상동작 검침 장치 및 방법 | |
CN118074275A (zh) | 用于安全断开充电电流路径的基于半导体的保险装置 | |
CN117337255A (zh) | 车载用控制装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |