CN105515094A - 一种电池管理系统充电唤醒电路 - Google Patents

一种电池管理系统充电唤醒电路 Download PDF

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CN105515094A
CN105515094A CN201510895262.3A CN201510895262A CN105515094A CN 105515094 A CN105515094 A CN 105515094A CN 201510895262 A CN201510895262 A CN 201510895262A CN 105515094 A CN105515094 A CN 105515094A
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resistance
circuit
filter capacitor
comparator
current
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刘新天
何耀
曾国建
郑昕昕
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Hefei University of Technology
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Hefei University of Technology
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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
    • 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
    • B60L53/10—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 the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • 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
    • B60L53/10—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 the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • 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
    • 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
    • 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
    • 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
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • 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
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • 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

本发明公开了一种电池管理系统充电唤醒电路，包括有充电枪连接电路、比较器电路和DC唤醒电路，BMS关断后，监控充电机的状态，若充电机在BMS关闭后对电池组充电，通过充电唤醒电路来启动BMS，继续对电池组进行管理、监控。当充电机不在线时，BMS则处于低功耗状态，防止车载铅酸蓄电池被放电至过放状态。

Description

一种电池管理系统充电唤醒电路
技术领域
本发明涉及电池管理系统技术领域，尤其涉及一种电池管理系统充电唤醒电路。
背景技术
在电动汽车处于停驶状态时，电池管理系统（BatteryManagementSystem，BMS）需要处于断电或者低功耗状态，否则会导致为BMS供电的车载铅酸电池持续放电至过放状态，这样不仅会对车载铅酸蓄电池带来损伤，还会使电动汽车下次无法正常上电。当BMS处于断电状态时，如果此时对动力锂电池组进行充电，则需要手动开启BMS，造成不便。因此最佳情况为BMS处于低功耗状态，当需要对锂电池组进行充电时，由充电机对其进行自动唤醒，以启动BMS，使其处于工作状态，并且此时BMS由充电机进行供电，防止车载铅酸电池过放。此时需要BMS充电唤醒电路。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种电池管理系统充电唤醒电路。
本发明是通过以下技术方案实现的：
一种电池管理系统充电唤醒电路，包括有充电枪连接电路、比较器电路和DC唤醒电路，所述的充电枪连接电路包括有滤波电容C1、C2、TVS二极管D1、电阻R1、限流电阻R2，所述的比较器电路包括有比较器U1、三极管U2、电阻R3、R4、R5、R6，所述的DC唤醒电路包括有防反接二极管D2、接地电阻R7、限流电阻R8、滤波电容C3、稳压二极管D3、DC电源U3，充电枪连接端Charger端分别连接所述的滤波电容C1的一端、TVS二极管D1的负极、电阻R1的一端和限流电阻R2的一端，滤波电容C1的另一端和TVS二极管D1的正极接地，电阻R1的另一端接+5V电源，限流电阻R2的另一端分别连接滤波电容C2的一端和比较器U1的正向输入端，滤波电容C2的另一端接地，比较器U1的反向输入端分别连接电阻R3和电阻R4的一端，电阻R3的另一端接+5V电源，电阻R4的另一端接地，比较器U1的输出端连接电阻R6的一端，电阻R6的另一端分别连接电阻R5的一端和三极管U2的基极，电阻R5的另一端和三极管U2的集电极均连接+5V电源，三极管U2的发射极连接防反接二极管D2的正极，防反接二极管D2的负极分别连接接地电阻R7和限流电阻R8的一端，接地电阻R7的另一端接地，限流电阻R8的另一端分别连接滤波电容C3的一端、稳压二极管D3的负极和DC电源U3的EN端，滤波电容C3的另一端和稳压二极管D3的正极接地。
充电枪连接电路主要包含分压电阻、限流电阻及其外围电路，其主要功能是为后续的比较器电路提供一个5V或2.5V的输入电压。
比较器电路主要包含一个比较器和一个PNP三极管，其主要作用根据输入电压的不同，输出一个0V或﹢5V的高低电平信号。
DC电源唤醒电路主要包含限流电阻、二极管、稳压管以及DC电源等，其主要作用是接收比较器电路输出的高低电平信号，当为高电平时，DC电源工作，唤醒整个BMS系统；为低电平时，则BMS继续保持低功耗状态。
本发明的优点是：本发明可以在电动汽车充电时，自动唤醒处于低功耗状态的BMS系统，对动力电池组的充电过程进行监控，十分方便，当BMS被唤醒后，BMS系统会由充电机进行供电，防止车载铅酸蓄电池过放。
附图说明
图1为本发明的电路图。
具体实施方式
如图1所示，一种电池管理系统充电唤醒电路，包括有充电枪连接电路1、比较器电路2和DC唤醒电路3，所述的充电枪连接电路1包括有滤波电容C1、C2、TVS二极管D1、电阻R1、限流电阻R2，所述的比较器电路2包括有比较器U1、三极管U2、电阻R3、R4、R5、R6，所述的DC唤醒电路3包括有防反接二极管D2、接地电阻R7、限流电阻R8、滤波电容C3、稳压二极管D3、DC电源U3，充电枪连接端Charger端分别连接所述的滤波电容C1的一端、TVS二极管D1的负极、电阻R1的一端和限流电阻R2的一端，滤波电容C1的另一端和TVS二极管D1的正极接地，电阻R1的另一端接+5V电源，限流电阻R2的另一端分别连接滤波电容C2的一端和比较器U1的正向输入端，滤波电容C2的另一端接地，比较器U1的反向输入端分别连接电阻R3和电阻R4的一端，电阻R3的另一端接+5V电源，电阻R4的另一端接地，比较器U1的输出端连接电阻R6的一端，电阻R6的另一端分别连接电阻R5的一端和三极管U2的基极，电阻R5的另一端和三极管U2的集电极均连接+5V电源，三极管U2的发射极连接防反接二极管D2的正极，防反接二极管D2的负极分别连接接地电阻R7和限流电阻R8的一端，接地电阻R7的另一端接地，限流电阻R8的另一端分别连接滤波电容C3的一端、稳压二极管D3的负极和DC电源U3的EN端，滤波电容C3的另一端和稳压二极管D3的正极接地。
在充电枪连接电路1中，当充电枪连接时，Charger端会接入一个1KΩ的电阻，此时该电阻与R1组成分压电路，输出﹢2.5V电压给比较器U1的3输入脚；当充电枪未连接时，则输出﹢5V电压给比较器的3输入脚。充电枪连接电路中，C1、C2为滤波电容，D1为TVS二极管，防止电路因干扰而损坏，R2为限流电阻。
在比较器电路2中，R3与R4组成分压电路，输出﹢3.3V的电压给比较器的4输入脚，当3输入脚为+2.5V时，即充电枪连接时，比较器1脚输出0V电压，此时PNP三极管U2导通，输出﹢5V的DCwakeUp信号给DC唤醒电路；当比较器3输入脚为﹢5V时，即充电枪未连接，此时比较器1脚输出+5V电压，三极管U2不导通，则输出0V的DCWakeUp信号给DC唤醒电路。
在DC唤醒电路3中，若DCWakeUp信号为﹢5V，即充电枪连接时，则使能DC电源U3，输出+5V的Vout电源，为整个BMS供电，若DCWakeUp信号为0V，即充电枪未连接时，则DC电源U3无输出，BMS保持低功耗状态，DC电源的供电端Vin与充电枪的12V输出电源A+连接。

Claims (1)

1.一种电池管理系统充电唤醒电路，其特征在于：包括有充电枪连接电路、比较器电路和DC唤醒电路，所述的充电枪连接电路包括有滤波电容C1、C2、TVS二极管D1、电阻R1、限流电阻R2，所述的比较器电路包括有比较器U1、三极管U2、电阻R3、R4、R5、R6，所述的DC唤醒电路包括有防反接二极管D2、接地电阻R7、限流电阻R8、滤波电容C3、稳压二极管D3、DC电源U3，充电枪连接端Charger端分别连接所述的滤波电容C1的一端、TVS二极管D1的负极、电阻R1的一端和限流电阻R2的一端，滤波电容C1的另一端和TVS二极管D1的正极接地，电阻R1的另一端接+5V电源，限流电阻R2的另一端分别连接滤波电容C2的一端和比较器U1的正向输入端，滤波电容C2的另一端接地，比较器U1的反向输入端分别连接电阻R3和电阻R4的一端，电阻R3的另一端接+5V电源，电阻R4的另一端接地，比较器U1的输出端连接电阻R6的一端，电阻R6的另一端分别连接电阻R5的一端和三极管U2的基极，电阻R5的另一端和三极管U2的集电极均连接+5V电源，三极管U2的发射极连接防反接二极管D2的正极，防反接二极管D2的负极分别连接接地电阻R7和限流电阻R8的一端，接地电阻R7的另一端接地，限流电阻R8的另一端分别连接滤波电容C3的一端、稳压二极管D3的负极和DC电源U3的EN端，滤波电容C3的另一端和稳压二极管D3的正极接地。
CN201510895262.3A 2015-12-04 2015-12-04 一种电池管理系统充电唤醒电路 Pending CN105515094A (zh)

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US15/096,817 US10148109B2 (en) 2015-12-04 2016-04-12 Charge wake-up circuit for a battery management system (BMS)

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Cited By (12)

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