WO2011137603A1 - 具备记忆功能的车载式电动车充电器 - Google Patents

具备记忆功能的车载式电动车充电器 Download PDF

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Publication number
WO2011137603A1
WO2011137603A1 PCT/CN2010/075037 CN2010075037W WO2011137603A1 WO 2011137603 A1 WO2011137603 A1 WO 2011137603A1 CN 2010075037 W CN2010075037 W CN 2010075037W WO 2011137603 A1 WO2011137603 A1 WO 2011137603A1
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WO
WIPO (PCT)
Prior art keywords
circuit
battery pack
charging
voltage
chip
Prior art date
Application number
PCT/CN2010/075037
Other languages
English (en)
French (fr)
Inventor
林正浩
Original Assignee
Lin Zhenghao
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 Lin Zhenghao filed Critical Lin Zhenghao
Priority to US13/696,361 priority Critical patent/US20130049690A1/en
Publication of WO2011137603A1 publication Critical patent/WO2011137603A1/zh

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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
    • 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
    • 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
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between 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
    • B60L2200/00—Type of vehicles
    • B60L2200/22—Microcars, e.g. golf cars
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles
    • B60L2200/42—Fork lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/60—Electric or hybrid propulsion means for production processes
    • 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
    • Y02T90/12—Electric charging stations
    • 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
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • Vehicle-mounted electric vehicle charger with memory function
  • the invention relates to a charger technology, in particular to an electric vehicle mainly used for providing energy by a battery, that is, a charger for charging a battery pack of an electric vehicle, the electric vehicle including the electric forklift, the golf cart, the sightseeing car and the electric vehicle.
  • a charger technology in particular to an electric vehicle mainly used for providing energy by a battery, that is, a charger for charging a battery pack of an electric vehicle, the electric vehicle including the electric forklift, the golf cart, the sightseeing car and the electric vehicle.
  • the charger on the market can only display the battery pack's power under the condition of love book. It can only play the role of prompting to charge immediately. When the power is not enough, the user is prompted to charge immediately. To achieve this process, only The microprocessor with detection, contrast and display functions can be used, that is, there is no memory function, memory charger and battery pack usage process and working condition.
  • the electric vehicle charger can't remember the function of the charger and battery pack and the working condition.
  • the vehicle manufacturer sells the whole vehicle, if the user does not correctly use and charge the battery pack of the electric vehicle as required, if the battery is not fully charged for a long time, or the low voltage storage time is too long, the battery will prematurely age. , The capacity is rapidly reduced, and the internal resistance is increased. When such problems occur, the user will ask for a battery damage warranty during the warranty period. Because there is no memory function, the car manufacturer cannot provide evidence that the user has not prematurely damaged the battery according to the use and maintenance requirements.
  • the present invention aims to introduce a vehicle-mounted electric vehicle with a memory function in view of the above-mentioned deficiencies of the prior art.
  • Charger It can automatically memorize the working data of the charger and battery pack for use and maintenance for at least 3 years.
  • the manufacturer When the manufacturer is repairing the vehicle, it only needs to connect the computer to the connector inside the charger, and the charger can be used to read the storage of the charger.
  • the battery In the chip from the factory to the maintenance of the work data; after the user completes a certain period of charging, the battery is automatically equalized and charged, so that the parameters of the battery pack are more balanced.
  • the vehicle-mounted electric vehicle charger with the memory function of the invention comprises an AC input circuit, a power factor correction circuit, a high voltage DC circuit, a DC-DC conversion circuit, an output control circuit and a charging output terminal, and an output terminal of the AC input circuit is connected to the power.
  • the input end of the factor correction circuit, the output end of the power factor correction circuit is connected to the input end of the high voltage DC circuit, the output end of the high voltage DC circuit is connected to the input end of the DC-DC conversion circuit, and the output end of the DC-DC conversion circuit is connected to the output control circuit
  • the input end of the output control circuit is connected to the charging output terminal, and the charging output terminal is connected to the electric vehicle battery pack to charge the electric vehicle battery pack;
  • the utility model also includes an MCU chip, a battery voltage detecting circuit, a working data storage module, a vehicle control signal connection port, a perpetual calendar chip, a data reading port and an auxiliary power supply circuit; the battery group voltage detecting circuit is respectively connected with the charging output terminal and the MCU chip, The charging output terminal acquires data, and then inputs the data into the MCU chip; the working data storage module is connected with the MCU chip, and the data from the MCU chip is stored, and the stored working data can also be output to the MCU chip; the vehicle control signal connection port is connected with the MCU chip.
  • the perpetual calendar chip is connected with the MCU chip;
  • the data reading port is connected with the MCU chip, and the two interact, that is, the data reading port can read the required data from the MCU chip;
  • the input end of the auxiliary power supply circuit Connecting the output end of the high voltage DC circuit, and then supplying power to the DC-DC conversion circuit, the output control circuit, the MCU chip and the working data storage module;
  • the auxiliary power supply circuit is also connected to the vehicle control signal connection port;
  • the MCU chip monitors the voltage of the battery pack through the battery pack voltage detecting circuit, and automatically records the charging and discharging data of the battery pack stored in the working data storage chip, and the recorded data includes at least: 1.
  • the charging process is normally completed. Number of times; 2, the number of times not charged in time after discharge and the occurrence Time; 3. The number of times the charging is stopped when the charging is not full, and the time of occurrence; 4. The number of times the battery pack voltage reaches the low voltage protection and the time of occurrence.
  • the computer When the data stored by the charger is to be read, the computer can be connected to the data reading port by online connection, and all the storage records can be called up or the relevant storage records can be called up as needed.
  • the MCU chip can automatically start the equalization charging mode of the battery after the battery completes a certain number of charging/discharging, and automatically repairs the battery cells generated by the usual charging and discharging. balanced.
  • the MCU chip monitors the voltage of the battery pack in real time through the battery voltage detecting circuit, and can perform over-discharge protection on the battery pack, including when the voltage of the battery pack drops to a certain value for a certain period of time, the MCU sends a signal to By reducing the speed of the vehicle, when the battery pack voltage continues to drop to another lower voltage, the MCU can signal the vehicle to stop operating to protect the battery pack from over-discharge and damage the battery pack.
  • the utility model has the memory function of the vehicle-mounted electric vehicle charger, and the beneficial effects thereof are as follows: First, the use of the charger and the battery pack can be automatically memorized, the number of times of the charging process being completed normally, the number of times that the battery is not charged in time after the discharge, and the occurrence The time, the number of times the charging is not full, the number of times the charging is stopped, the time of occurrence, the number of times the battery voltage reaches the low voltage protection, and the time of occurrence are stored in a record, providing real-time and reliable data for the after-sales service of the vehicle manufacturer. Analyze the cause of battery pack damage. Provide an effective basis for mediating disputes between battery manufacturers and customers regarding battery packs. It also helps monitor and urge customers to use chargers and battery packs correctly.
  • the equalization charging function can be automatically activated, and it is not necessary to specifically set the equalization charging, that is, manually start the equalization charging.
  • the vehicle manufacturer can cooperate with the vehicle manufacturer to force the user to perform protective operation on the low voltage of the battery, that is, to have the low voltage protection function of the battery.
  • the throttle of the electric vehicle is automatically controlled to make the vehicle work at a slow state. If the battery voltage in the vehicle continues to decrease, the charger will send a control signal to control the vehicle to stop. This ensures that the battery pack will not be damaged by overdischarge.
  • it is widely used in transportation tools such as electric forklifts, golf carts, sightseeing cars and electric vehicles.
  • FIG. 1 is a block diagram of a circuit of the present invention. detailed description
  • the vehicle-mounted electric vehicle charger with memory function includes an AC input circuit, a power factor correction circuit, a high voltage DC circuit, a DC-DC conversion circuit, an output control circuit, and a charging output terminal, and an AC input circuit.
  • the output end is connected to the input end of the power factor correction circuit, the output end of the power factor correction circuit is connected to the input end of the high voltage DC circuit, and the output end of the high voltage DC circuit is connected to the input end of the DC-DC conversion circuit, and the output of the DC-DC conversion circuit
  • the end is connected to the input end of the output control circuit, the output end of the output control circuit is connected to the charging output terminal, and the charging output terminal is connected to the electric vehicle battery pack to charge the electric vehicle battery pack;
  • the utility model also includes an MCU chip, a battery voltage detecting circuit, a working data storage module, a vehicle control signal connection port, a perpetual calendar chip, a data reading port and an auxiliary power supply circuit; the battery group voltage detecting circuit is respectively connected with the charging output terminal and the MCU chip, The charging output terminal acquires data, and then inputs the data into the MCU chip; the working data storage module is connected with the MCU chip, and the data from the MCU chip is stored, and the stored working data can also be output to the MCU chip; the vehicle control signal connection port is connected with the MCU chip.
  • the perpetual calendar chip is connected with the MCU chip;
  • the data reading port is connected with the MCU chip, and the two interact, that is, the data reading port can read the required data from the MCU chip;
  • the input end of the auxiliary power supply circuit Connecting the output end of the high voltage DC circuit, and then supplying power to the DC-DC conversion circuit, the output control circuit, the MCU chip and the working data storage module;
  • the auxiliary power supply circuit is also connected to the vehicle control signal connection port;
  • the MCU chip monitors the voltage of the battery pack through the battery pack voltage detecting circuit, and automatically records the charging and discharging data of the battery pack stored in the working data storage chip, and the recorded data is at least included in the package. Including: 1. The number of times the charging process is completed normally; 2. The number of times that the charging process is not timely charged and the time of occurrence; 3. The number of times the charging is stopped when the charging is not full, and the time of occurrence; 4. The voltage of the battery pack reaches the low voltage protection. The number of times and the time of occurrence.
  • the computer When the data stored by the charger is to be read, the computer is connected to the data reading port via a connection line, and the entire storage record can be called up or the associated storage record can be called up as needed.
  • the MCU chip can automatically start the equalization charging mode of the battery after the battery completes a certain number of charging/discharging, and automatically repairs the battery cells generated by the usual charging and discharging. balanced.
  • the MCU chip monitors the voltage of the battery pack in real time through the battery voltage detecting circuit, and can perform over-discharge protection on the battery pack, including when the voltage of the battery pack drops to a certain value (for example, 1.8 V/cell) and continues. For a certain period of time (for example: 10 seconds), the MCU sends a signal to reduce the speed. When the battery pack voltage continues to drop to another lower voltage (for example, 1. 7V/cell), the MCU can send a signal to let The vehicle stops running to protect the battery pack from over-discharge and damage the battery pack.
  • a certain value for example, 1.8 V/cell
  • the MCU sends a signal to reduce the speed.
  • the battery pack voltage continues to drop to another lower voltage (for example, 1. 7V/cell)
  • the MCU can send a signal to let The vehicle stops running to protect the battery pack from over-discharge and damage the battery pack.
  • the charger is factory-calibrated by the vehicle manufacturer, so that the date and time of use of the battery pack and the charger can be correctly recorded after leaving the factory.
  • the auxiliary power supply circuit in the charger of the present invention is responsible for supplying power to all the control parts, and the MCU chip and the perpetual calendar chip communicate to obtain each event.
  • the MCU chip first detects whether the DC output terminal is connected to the battery, and checks whether the voltage of the battery is normal. If the battery is not connected or the battery voltage is abnormal, the charger of the present invention will automatically turn off the output; The connection is normal, the MCU of the charger of the present invention will charge the battery according to the factory programmed program, and monitor the charging process. If the charging process can fill the battery according to the predetermined procedure, the MCU will record a normal charging to In the storage module.
  • the MCU chip When the number of normal charging reaches a certain number of times (for example, 30 times), the MCU chip will automatically enter the equalization charging mode to automatically repair the imbalance between the battery cells caused by normal charging and discharging.
  • the charger of the present invention When the charger of the present invention is not connected to the commercial power, and the ignition switch of the electric vehicle is not ignited, the charger of the present invention operates in a sleep state, and the charger of the present invention does not use the electric energy of the battery.
  • the voltage of the battery pack is not detected, but the battery in the charger of the present invention can continue the operation of the perpetual calendar chip, and does not work because there is no electric energy outside, thus avoiding the discharge of the charger of the present invention after being connected to the electric vehicle.
  • the electric vehicle causes battery damage during the time of suspension or shipping, and once the ignition switch of the electric vehicle is ignited, the auxiliary power supply circuit of the charger of the present invention is converted from the battery pack to each control circuit, and after the MCU chip is powered on, The voltage of the battery pack is monitored by the battery voltage detecting circuit. When the voltage of the battery pack drops to a certain value (for example, 1.8 V/cell) for a certain period of time (for example, 60 seconds), the MCU records the voltage. The voltage of the battery pack and the time of the battery, and the MCU will send a signal to the electric vehicle controller to let the electric vehicle start to decelerate.
  • a certain value for example, 1.8 V/cell
  • a certain period of time for example, 60 seconds
  • the MCU When the battery pack voltage continues When the voltage is lower to another lower voltage (for example, L 7V/cell) for a certain period of time (for example, 30 seconds), the MCU records the current battery voltage and the time of occurrence, and sends another signal cut off.
  • the control power of the electric vehicle controller allows the electric vehicle to stop.
  • the charger of the present invention Since the charger of the present invention has a perpetual calendar and a working data storage module, a vehicle control signal connection port, and a data reading port, the charger is factory set to set the date and time according to Beijing time, for example, the MCU only needs to detect the next time.
  • the condition that needs to be recorded is established and will be recorded in the storage module.
  • the recorded data includes: the number of times the charging process is normally completed; the number of times that the charging process is not timely charged and the time of occurrence; the number of times the charging is stopped when the charging is not full, and the time of occurrence; the number of times the battery voltage reaches the low voltage protection and the time of occurrence .

Description

具备记忆功能的车载式电动车充电器
技术领域
本发明涉及充电器技术， 具体涉及主要应用于由电池提供能源的电动车， 即给电动车的电池组充电的充电器， 其电动车包括电动叉车、 高尔夫球车、 观光车及电动汽车等交通运输工说具。 背景技术
a) 目前市场上的充电器只能显示当即情书况下电池组的电量， 只能起到要 不要马上充电的提示作用， 电量不够时， 提示用户要马上充电， 实现这一过 程， 只需配设具有检测、 对比及显示功能的微处理器即可， 即不具备记忆功 能， 记忆充电器及电池组的使用过程及工作情况。
b) 电动车充电器， 也均不能记忆充电器及电池组的使用过程及工作情况 的功能。 当车厂卖出整车后， 若用户没有按要求对电动车的电池组正确地使 用和充电， 如电池长期工作在没充满电的情况， 或低电压贮存时间过长， 会 引起电池过早老化， 容量快速减低， 内阻增大等问题。 当此类问题出现后， 用户会提出在保修期内电池损坏要求保修， 由于没有记忆的功能， 车厂便无 法提供证据证明是因为用户没按使用及维护要求导致电池过早损坏。
c) 目前市场上的充电器，均没有万年历的功能,也就不能记录充电器或电 池组工作的具体时间，也就无法提供证据证明是因为用户没按使用及维护要 求导致电池过早损坏。
d) 目前市场上的电动车充电器，均不能自动对电池进行均衡充电.需手动 设置均衡充电。 发明内容
本发明旨在针对现有技术的上述不足， 推出具备记忆功能的车载式电动车 充电器。 其能自动记忆充电器和电池组使用和维护的工作数据至少 3年时间， 当厂家在维修车辆时， 只需要将电脑连接到充电器机内的连接器， 便可用电 脑读出充电器的贮存在其芯片中的由出厂到维修期间的工作数据； 可以在用 户完成一定周期的充电后， 自动对电池进行均衡充电， 使电池组的参数更加 均衡。
为了实现上述目的， 完成上述任务， 本发明具备记忆功能的车载式电动 车充电器采用如下技术方案：
构造本发明具备记忆功能的车载式电动车充电器， 包括 AC输入电路、 功 率因素校正电路、 高压直流电路、 DC-DC转换电路、 输出控制电路及充电输出 端子， AC输入电路的输出端连接功率因素校正电路的输入端， 功率因素校正 电路的输出端连接高压直流电路的输入端，高压直流电路的输出端连接 DC-DC 转换电路的输入端， DC-DC转换电路的输出端连接输出控制电路的输入端，输 出控制电路的输出端连接充电输出端子， 由充电输出端子连接至电动车电池 组， 向电动车电池组充电；
还包括 MCU芯片、 电池组电压检测电路、 工作数据存储模块、 车辆控制 讯号连接端口、 万年历芯片、 数据读取端口及辅助供电电路； 电池组电压检 测电路分别与充电输出端子及 MCU芯片连接， 从充电输出端子获取数据， 再 将数据输入 MCU芯片； 工作数据存储模块与 MCU芯片连接， 将来自 MCU芯片 的数据存储， 也可以向 MCU芯片输出存储的工作数据； 车辆控制讯号连接端 口与 MCU芯片连接， 从 MCU芯片获取数据； 万年历芯片与 MCU芯片连接； 数 据读取端口与 MCU芯片连接， 两者进行互动， 即数据读取端口可以从 MCU芯 片读取所需要的数据； 辅助供电电路的输入端连接高压直流电路的输出端， 再向 DC-DC转换电路、 输出控制电路、 MCU芯片及工作数据存储模块供电；辅 助供电电路还与车辆控制讯号连接端口连接；
MCU芯片通过电池组电压检测电路监测到电池组的电压，并自动记录电池 组的充电及放电数据存储于所述工作数据存贮芯片中，其记录的数据至少包 括： ①.正常完成充电过程的次数； ②、 放电后未及时充电的次数及发生的 时间； ③、 充电未充满便关电停止充电的次数及发生时间； ④、 电池组电压 达到低压保护的次数及发生的时间。
对上述技术方案进行进一步阐述：
当要读取充电器贮存的数据时，将计算机通过联机连接到所述数据读取 端口，即可调出全部的存贮记录或按需要调出相关的存贮记录。
通过存贮于所述工作数据存贮芯片的数据， MCU芯片可以在电池完成一定 次数的充 /放电后， 自动启动对电池进行均衡充电模式， 自动修复平时充放电 产生的电池单体间的不均衡。
所述 MCU芯片通过所述电池组电压检测电路实时监测电池组的电压,可以 对电池组实施过放电保护，包括当电池组的电压降到一定的值并持续一定的 时间， MCU便发出信号来降低车速，当电池组电压继续降低到另一个更低的电 压时， MCU便可以发出信号来让车辆停止运行.以达到保护电池组， 避免过放 电导致电池组损坏。
本发明具备记忆功能的车载式电动车充电器， 其有益效果在于： 其一， 能自动记忆充电器及电池组的使用情况， 将正常完成充电过程的 次数、 放电后未及时充电的次数及发生的时间、 充电未充满便关电停止充电 的次数及发生时间、 电池组电压达到低压保护的次数及发生的时间等一一记 录存贮下来， 为车辆制造厂进行售后服务提供实时可靠数据， 方便分析电池 组损坏的原因.对调解制造厂与客户间关于电池组方面的纠纷提供有效的依 据， 也为监控并督促客户正确使用充电器及电池组提供帮助。
其二， 能自动启动均衡充电功能， 不需要再用人专门设置均衡充电， 即 人工启动均衡充电。
其三， 能配合车辆制造厂强制用户对电池低压进行保护性操作， 即具有 电池低压保护功能。 当电池电压降低到一定的范围时， 自动控制电动汽车的 油门， 使车辆工作在慢速的状态， 如果车内电池电压继续降低， 充电器将发 出控制信号， 控制车辆使其停车。 这样可确保电池组不会因为过放电受到损 害。 其四， 用途广， 可广泛应用于电动叉车、 高尔夫球车、 观光车及电动汽 车等交通运输工具。 附图说明
图 1为本发明电路方框示意图。 具体实施方式
下面， 结合附图介绍本发明的具体实施方式。
如图 1所示， 本发明具备记忆功能的车载式电动车充电器， 包括 AC输入 电路、 功率因素校正电路、 高压直流电路、 DC-DC转换电路、 输出控制电路及 充电输出端子， AC输入电路的输出端连接功率因素校正电路的输入端， 功率 因素校正电路的输出端连接高压直流电路的输入端， 高压直流电路的输出端 连接 DC-DC转换电路的输入端， DC-DC转换电路的输出端连接输出控制电路的 输入端， 输出控制电路的输出端连接充电输出端子， 由充电输出端子连接至 电动车电池组， 向电动车电池组充电；
还包括 MCU芯片、 电池组电压检测电路、 工作数据存储模块、 车辆控制 讯号连接端口、 万年历芯片、 数据读取端口及辅助供电电路； 电池组电压检 测电路分别与充电输出端子及 MCU芯片连接， 从充电输出端子获取数据， 再 将数据输入 MCU芯片； 工作数据存储模块与 MCU芯片连接， 将来自 MCU芯片 的数据存储， 也可以向 MCU芯片输出存储的工作数据； 车辆控制讯号连接端 口与 MCU芯片连接， 从 MCU芯片获取数据； 万年历芯片与 MCU芯片连接； 数 据读取端口与 MCU芯片连接， 两者进行互动， 即数据读取端口可以从 MCU芯 片读取所需要的数据； 辅助供电电路的输入端连接高压直流电路的输出端， 再向 DC-DC转换电路、 输出控制电路、 MCU芯片及工作数据存储模块供电；辅 助供电电路还与车辆控制讯号连接端口连接；
MCU芯片通过电池组电压检测电路监测到电池组的电压，并自动记录电池 组的充电及放电数据存储于所述工作数据存贮芯片中，其记录的数据至少包 括： ①.正常完成充电过程的次数； ②、 放电后未及时充电的次数及发生的 时间； ③、 充电未充满便关电停止充电的次数及发生时间； ④、 电池组电压 达到低压保护的次数及发生的时间。
当要读取充电器贮存的数据时，将计算机通过连接线连接到所述数据读 取端口，即可调出全部的存贮记录或按需要调出相关的存贮记录。
通过存贮于所述工作数据存贮芯片的数据， MCU芯片可以在电池完成一定 次数的充 /放电后， 自动启动对电池进行均衡充电模式， 自动修复平时充放电 产生的电池单体间的不均衡。
所述 MCU芯片通过所述电池组电压检测电路实时监测电池组的电压,可以 对电池组实施过放电保护，包括当电池组的电压降到一定的值（例如 1. 8V/单 元格）并持续一定的时间（例如： 10秒钟)， MCU便发出信号来降低车速，当电池 组电压继续降低到另一个更低的电压时 (例如 1. 7V/单元格)， MCU便可以发出 信号来让车辆停止运行.以达到保护电池组， 避免过放电导致电池组损坏。
本发明中的万年历芯片和工作数据存贮芯片， 充电器出厂时由车辆制造厂 校对时间， 以便能在出厂后正确记录电池组及充电器的使用日期和时间。
本发明的工作过程如下：
A、 当本发明的充电器的 AC输入连接到市电对电池充电时. 本发明的充 电器内辅助供电电路负责对所有的控制部分供电， MCU芯片和万年历芯片通讯 以获取每个事件发生的时间， 工作时 MCU芯片先检测 DC输出端子是否有连接 到电池上， 和检査电池的电压是否正常， 如果没有连接电池或电池电压不正 常， 本发明的充电器都将自动关断输出； 如果连接正常， 本发明的充电器的 MCU将按照出厂设定的程控对电池进行充电， 并对充电过程进行监控， 如果充 电过程能够按已定的程序将电池充满， MCU将会记录一次正常充电到存储模块 中。
B、 当正常充电的次数达到一定的次数 (例如 30次） MCU芯片将自动进入 均衡充电模式， 自动修复平时充放电产生的电池单体间的不均衡。
C、如果开始充电但没能完成充电用户便停止充电将电车开出去使用， MCU 芯片也将记录这次为一次不正常充电保养并记录发生的时间。
D、 当本发明的充电器没有连接到市电上， 电动车的点火开关也没有点火 时， 本发明的充电器工作在休眠状态， 这时本发明的充电器不会用蓄电池的 电能， 也不检测电池组的电压， 但本发明的充电器内的电池能让万年历芯片 继续运行， 不会因为外面没有电能而不工作， 这样避免了本发明的充电器连 接到电动车上后会放电对导致电动车在停用或海运等时间造成电池损坏， 而 一旦电车的点火开关打火， 本发明的充电器的辅助供电电路便会从电池组取 电转换为各控制电路， MCU芯片上电后通过电池组电压检测电路监测到电池组 的电压，当电池组的电压降到一定的值 (例如 1. 8V/单元格)并持续一定的时间 (例如：60秒钟）， MCU便会记录下电池组的电压及发生的时间， 同时 MCU会发 出一个讯号给电动车控制器， 让电动车开始减速， 当电池组电压继续降低到 另一个更低的电压时 (例如 L 7V/单元格)， 并持续一定的时间（例如：30秒钟) MCU便又记录当时的电池组电压及发生的时间，同时发出另一个讯号切断电动 车控制器的控制电源， 让电动车停车。
由于本发明的充电器中有万年历和工作数据存储模块、 车辆控制讯号连 接端口、 数据读取端口，充电器在出厂时由工厂例如按北京时间设定好日期和 时间，以后 MCU只要检测到下述需要记录的条件成立,都会记录在存储模块中。 其记录的数据包括： 正常完成充电过程的次数； 放电后未及时充电的次数及 发生的时间； 充电未充满便关电停止充电的次数及发生时间； 电池组电压达 到低压保护的次数及发生时间。
以上所述， 仅是本发明的较佳实施例， 并非对本发明的技术范围作任何 限制。 本行业的技术人员， 在本技术方案的启迪下， 可以做出一些变形与修 改， 凡是依据本发明的技术实质对以上的实施例所作的任何修改、 等同变化 及修饰， 均仍属于本发明技术方案的范围内。

Claims

权 利 要 求 书
1、 具备记忆功能的车载式电动车充电器， 包括 AC输入电路、 功率因素 校正电路、 高压直流电路、 DC-DC转换电路、 输出控制电路及充电输出端子， AC输入电路的输出端连接功率因素校正电路的输入端， 功率因素校正电路的 输出端连接高压直流电路的输入端， 高压直流电路的输出端连接 DC-DC转换 电路的输入端， DC-DC转换电路的输出端连接输出控制电路的输入端， 输出控 制电路的输出端连接充电输出端子， 由充电输出端子连接至电动车电池组， 向电动车电池组充电； 其特征在于：
还包括 MCU芯片、 电池组电压检测电路、 工作数据存储芯片、 车辆控制 讯号连接端口、 万年历芯片、 数据读取端口及辅助供电电路； 电池组电压检 测电路分别与充电输出端子及 MCU芯片连接， 工作数据存储芯片与 MCU芯片 连接， 将来自 MCU芯片的数据存储， 也可以向 MCU芯片输出存储的工作数据； 车辆控制讯号连接端口与 MCU芯片连接， 从 MCU芯片获取数据； 万年历芯片 与 MCU芯片连接； 数据读取端口与 MCU芯片连接， 两者进行互动， 即数据读 取端口可以从 MCU芯片读取所需要的数据； 辅助供电电路的输入端连接高压 直流电路的输出端， 再向 DC-DC转换电路、 输出控制电路、 MCU芯片及工作数 据存储芯片供电； 辅助供电电路还与车辆控制讯号连接端口连接；
MCU芯片能够识别充电器的各种工作状态,且时常监测充电器的各种工作 状态和通过电池组电压检测电路监测到电池组的电压，并自动记录电池组的 充电及放电数据存储于所述工作数据存贮芯片中，其记录的数据至少包括:①. 正常完成充电过程的次数； ②、放电后未及时充电的次数及发生的时间； ③、 充电未充满便关电停止充电的次数及发生时间； ④、 电池组电压达到低压保 护的次数及发生的时间。
2、 根据权利要求 1所述的具备记忆功能的车载式电动车充电器， 其特征 在于： 当要读取充电器贮存的数据时,将计算机通过连接线连接到所述数据读 取端口，即可调出全部的存贮记录或按需要调出相关的存贮记录。
3、 根据权利要求 1所述的具备记忆功能的车载式电动车充电器， 其特征 在于： 通过存贮于所述工作数据存贮芯片的数据， MCU芯片可以在电池完成一 定次数的充 /放电后， 自动启动对电池进行均衡充电模式， 自动修复平时充放 电产生的电池单体间的不均衡。
4、 根据权利要求 3所述的具备记忆功能的车载式电动车充电器， 其特征 在于： 当正常充电 /放电的次数达到 30次， MCU芯片将自动进入均衡充电模 式。
5、 根据权利要求 1所述的具备记忆功能的车载式电动车充电器， 其特征 在于： 所述 MCU芯片通过所述电池组电压检测电路实时监测电池组的电压,可 以对电池组实施过放电保护，包括当电池组的电压降到一定的值并持续一定 的时间， MCU便发出信号来降低车速，当电池组电压继续降低到另一个更低的 电压时， MCU便可以发出信号来让车辆停止运行.以达到保护电池组。
PCT/CN2010/075037 2010-05-06 2010-07-07 具备记忆功能的车载式电动车充电器 WO2011137603A1 (zh)

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