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WO2019184105A1 - 一种纯电动动力系统 - Google Patents

一种纯电动动力系统 Download PDF

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Publication number
WO2019184105A1
WO2019184105A1 PCT/CN2018/092234 CN2018092234W WO2019184105A1 WO 2019184105 A1 WO2019184105 A1 WO 2019184105A1 CN 2018092234 W CN2018092234 W CN 2018092234W WO 2019184105 A1 WO2019184105 A1 WO 2019184105A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
power battery
controller
power
solar
Prior art date
Application number
PCT/CN2018/092234
Other languages
English (en)
French (fr)
Inventor
谭心语
Original Assignee
谭心语
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Publication date
Application filed by 谭心语 filed Critical 谭心语
Publication of WO2019184105A1 publication Critical patent/WO2019184105A1/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
    • B60L8/00—Electric propulsion with power supply from forces of nature, e.g. sun or wind
    • B60L8/003—Converting light into electric energy, e.g. by using photo-voltaic systems
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • 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
    • 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
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • 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
    • 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
    • H02J7/0077—
    • 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
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • 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

Definitions

  • the invention belongs to the technical field of power systems, and in particular relates to a pure electric power system.
  • Electric vehicles do not require the use of gasoline or diesel like conventional internal combustion engines. They use electricity as a driving energy source, which usually comes from rechargeable batteries, capacitors or fuel cells.
  • a rechargeable battery pack or a battery pack, is connected in series or in parallel by more than one secondary battery.
  • These batteries use the principle of redox reaction of materials to store energy.
  • Commonly used batteries for electric vehicles include lead-acid batteries, nickel-chromium batteries, nickel-hydrogen batteries and lithium-ion batteries.
  • the advantage of the electric vehicle is that the motor is mechanically simple and has almost no pollution.
  • the efficiency of the motor can reach 90% or higher and can be precisely controlled.
  • the motor can also recover energy with the brake energy recovery system, especially in the case of frequent braking and starting urban operating conditions, braking energy
  • the recycling can effectively extend the driving distance of the electric vehicle.
  • the motor can be well controlled to provide a high gear ratio without the need for a gearbox like a conventional diesel locomotive.
  • Another advantage of electric vehicles is that they have little vibration and almost no noise pollution.
  • the source of electrical energy is very rich and flexible to store.
  • Electric vehicles with rechargeable batteries on the car are considered to be the most promising electric vehicles, but rechargeable batteries need to be recharged after they are exhausted.
  • the existing charging facilities are not perfect, and it takes time to charge the batteries, making electric
  • the mileage of the car is small, and the use of electric vehicles has certain limitations.
  • the existing charging facilities are not perfect, and it takes time to charge the battery, so that the mileage of the electric vehicle is small, and the use of the electric vehicle has certain limitations.
  • a pure electric power system includes a solar battery pack, a solar controller, a vehicle controller, a first power battery pack, a second power battery pack, a motor controller, and a drive motor, and the solar battery pack and the solar controller are electrically The connection, the motor controller and the drive motor are electrically connected, and the solar controller and the motor controller are respectively electrically connected to the vehicle controller, the vehicle controller including the charging SA and the electric door SA, the charging SA and the electric door SA All of the transfer switches electrically connecting the first power battery pack and the second power battery pack, the electric gate SA electrically connecting the first power battery pack and the second power battery pack, the charging SA and the solar power controller Electrically connected, the electric door SA and the motor controller are electrically connected.
  • the first power battery pack supplies power to the motor controller through the electric gate SA to drive the driving motor to operate.
  • the charging SA turns on the second power battery pack, and the solar battery pack is charged.
  • the SA charges the second power battery pack;
  • the switchable charging SA turns on the first power battery pack to charge it, and the switch gate SA turns on the second power battery pack to supply power to the motor controller;
  • the first power battery pack and the second power battery pack of the pure electric power system are alternately cycled and alternately cycled to provide power, which can realize charging while the vehicle is running, utilizing solar energy resources, and also saving charging time.
  • the charging SA has three switching nodes, one of which is a disconnecting node, and the other two of which are electrically connected to the first power battery and the second power battery, respectively.
  • the electric gate SA has three switching nodes, one of which is a disconnecting node, and the other two of which are electrically connected to the first power battery group and the second power battery group, respectively.
  • the first power battery pack and the second power battery pack have the same capacity and specifications.
  • the first power battery pack and the second power battery pack are both composed of a battery control system BMS and a power battery.
  • the solar controller is a diode.
  • the drive motor is a permanent magnet synchronous motor.
  • the first power battery pack and the second power battery pack of the vehicle can be alternately cycled and alternately cycled to provide power.
  • Figure 1 is a block diagram showing the structure of a pure electric power system of the present invention
  • Figure 2 is a circuit schematic diagram of a pure electric power system of the present invention
  • FIG. 3 is a circuit diagram of Embodiment 1 of the pure electric power system of the present invention.
  • a pure electric power system of the embodiment is applied to a three-wheel electric vehicle, including a solar battery unit 2, a solar controller 3, a vehicle controller 1, and a first power battery unit 4.
  • the first power battery pack 4 and the second power battery pack 5 are each composed of a battery control system BMS10 and a power battery, and the battery control system BMS10 can monitor the operating conditions (battery power, power supply current) of the power battery pack.
  • the first power battery pack 4 and the second power battery pack 5 have the same capacity and specifications, both of which are 48V and 10 Ah.
  • the first power battery pack 4 and the second power battery pack 5 are both charged in 2C, and half an hour in the normal power supply state. Can be filled, charge and discharge life > 2500 times.
  • the vehicle controller 1 includes a charging SA8 and a switch SA9, and the charging SA8 and the electric door SA9 are all switching switches.
  • the input end of the charging SA8 is electrically connected to the solar controller 3, and the output end of the charging SA8 is provided with three switching nodes, which are respectively labeled as “0” node, “1” node and “2”.
  • the output end of the electric gate SA9 is electrically connected to the motor controller 6.
  • the input end of the electric gate SA9 is provided with three conversion nodes, which are respectively marked as a "0'" node, a "1" node and a "2" node, wherein "0"
  • the node is a disconnect node, the "1'” power saves the first power battery pack 4, and the "2'” power saves the second power battery pack 5.
  • the solar battery unit 2 has an operating voltage of 48V and an operating current of 12.5A.
  • the solar battery unit 2 is electrically connected to the solar controller 3, and the solar battery unit 2 converts the solar energy into electrical energy, and the first through the charging controller SA8 via the solar controller 3.
  • the power battery pack 4 or the second power battery pack 5 is charged.
  • the solar controller 3 is a diode, and the function thereof is to ensure that the solar battery unit 2 unidirectionally charges the first power battery unit 4 and the second power battery unit 5 while preventing the first power battery unit 4 and the second power battery unit 5 from being paired with solar energy.
  • the battery pack 2 forms a current reverse charge.
  • the motor controller 6 is electrically connected to the drive motor 7, and the drive motor 7 is a 500 W permanent magnet synchronous motor having an operating voltage of 48 V and an operating current of 10 A.
  • the first power battery pack 4 or the second power battery pack 5 supplies power to the motor controller 6 through the electric gate SA9 to drive the drive motor 7 to operate, and the drive motor 7 drives the three-wheel electric vehicle to operate.
  • the first power battery pack 4 When the three-wheel electric vehicle is running, the first power battery pack 4 is in a pre-charged state, and the second power battery pack 5 is in an unpowered state, and the electric gate SA9 of the vehicle controller 1 is at the "1'" node. Positioning the first power battery pack 4 to supply power to the motor controller 6, the motor controller 6 drives the drive motor 7 to power the three-wheeled electric vehicle, and the charging controller 8 of the vehicle controller 1 is at the position of the "2" node, solar energy.
  • the battery pack 2 receives sunlight to convert solar energy into electrical energy, and the second power battery pack 5 is charged by the solar controller 3.
  • the battery control system BMS10 monitors the first power battery unit 4 and the second power battery unit 5.
  • the charging controller 8 of the vehicle controller 1 is at At the position of the "0" node, the charging SA8 is in an open state, protecting the second power battery pack 5.
  • the motor controller 6 When the first power battery pack 4 is exhausted, the position of the switch SA9 to the "2'" node is switched, and the motor controller 6 is powered by the second powered battery pack 5, and the motor controller 6 drives the drive motor. 7 provides power for the three-wheeled electric vehicle, and simultaneously converts the charging SA8 to the position of the "1" node.
  • the solar battery unit 2 receives the sunlight to convert the solar energy into electric energy, and the first power battery unit 4 is charged by the solar controller 3.
  • the above charging and power supply processes can alternate in an infinite loop. Through such a cycle, you can achieve long mileage, and even in the sunny weather can achieve unlimited renewal.
  • the first power battery pack 4 and the second power battery pack 5 are all pre-charged state, and the electric gate SA9 of the vehicle controller 1 is connected at the position of the "1'" node.
  • the first power battery pack 4 supplies power to the motor controller 6, and the motor controller 6 drives the drive motor 7 to power the three-wheeled electric vehicle.
  • the charging SA8 of the vehicle controller 1 is at the position of the "0" node, and the charging SA8 is in an open circuit. status.
  • the battery control system BMS10 monitors the first power battery pack 4 and the second power battery pack 5, and when the first power battery pack 4 is exhausted, the switch SA9 is switched to "2'.
  • the position of the node is powered by the second power battery pack 5 for the motor controller 6.
  • the motor controller 6 drives the drive motor 7 to power the three-wheeled electric vehicle, and simultaneously converts the charging SA8 to the position of the "1" node, the solar battery pack. 2
  • Receiving sunlight converts solar energy into electrical energy, and the first power battery pack 4 is charged by the solar controller 3.
  • the above charging and power supply processes can alternate in an infinite loop. Through such a cycle, you can achieve long mileage, and even in the sunny weather can achieve unlimited renewal.
  • the electric door SA9 of the vehicle controller 1 is at the position of the “0'” node.
  • the charging SA8 of the vehicle controller 1 is at “ 1" node charges the first power battery pack 4 or at the position of the "2" node to charge the second power battery pack 5, when the first power battery pack 4 and the second power battery pack 5 are fully charged, the whole vehicle The charge SA8 of the controller 1 is at the position of the "0" node.
  • the pure electric power system generates electricity by using the solar battery pack 2 installed in the vehicle, and provides power for alternate cycle charging and alternating cycle of the two power battery packs with the same battery capacity and specifications, so that the vehicle is charged during operation, thereby solving the vehicle continuation.
  • the problem of small mileage and difficulty in charging realizes the long mileage of the vehicle, and can continue to be infinitely continuous even in sunny weather.
  • the vehicle can be placed in a sunny place to continue to be two sets of power batteries. The group is charged, which realizes the full utilization of energy and saves energy.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

一种纯电动动力系统，包括太阳能电池组(2)、太阳能控制器(3)、整车控制器(1)、第一动力电池组(4)、第二动力电池组(5)、电机控制器(6)和驱动电动机(7)，太阳能电池组(2)和太阳能控制器(3)电连接，电机控制器(6)和驱动电动机(7)电连接，太阳能控制器(3)和电机控制器(6)分别与整车控制器(1)电连接，整车控制器(1)包括充电SA(8)和电门SA(9)，充电SA(8)和电门SA(9)均为转换开关，充电SA(8)电连接第一动力电池组(4)和第二动力电池组(5)，电门SA(9)电连接第一动力电池组(4)和第二动力电池组(5)，充电SA(8)和太阳能控制器(3)电连接，电门SA(9)和电机控制器(6)电连接。该纯电动动力系统解决了车辆持续里程小和充电难的问题，同时利用太阳能发电，实现了能源的充分利用。

Description

一种纯电动动力系统 技术领域
本发明属于动力系统技术领域，具体涉及一种纯电动动力系统。
 背景技术
电动交通工具的优点是：电机效率高、动力驱动系统结构简单、无环境污染。电动交通工具不像传统的内燃机那样需要使用汽油或者柴油，它以电力作为驱动能源，而这种电力通常来自于可充电电池、电容或者燃料电池。
可充电电池组，或者是蓄电池组，是由一个以上的二次电池以串联或者并联的方式连接的。这些电池都是利用物质的氧化还原反应原理来储存能量，常见用于电动汽车的蓄电池有铅酸电池、镍铬电池、镍氢电池及锂离子电池等。
电动汽车的优点是：电机在机械上结构简单，几乎不产生污染。电机的效率可以达到90%甚至更高，并可以被精确的控制，电机还能和刹车能量回收系统配合回收能量，尤其是在频繁的制动与启动的城市工况运行条件下，制动能量的回收可有效地延长电动汽车的行驶距离。电机能够被很好的控制，提供高的传动比，而不必像传统内燃机车那样需要变速箱。电动汽车的另外一个优点是振动小，几乎没有噪声污染。此外，电能来源非常丰富且储存灵活方便。
车载可充电电池的电动汽车被认为最有前途的电动交通工具，但是可充电电池的电量耗尽后就需要反复充电，现有的充电设施并不完善，并且给电池充电也需要时间，使得电动汽车持续行驶的里程小，电动汽车的使用具有一定的局限性。
 技术问题
现有的充电设施并不完善，并且给电池充电也需要时间，使得电动汽车持续行驶的里程小，电动汽车的使用具有一定的局限性。
 技术解决方案
本发明所采用的技术方案为：
一种纯电动动力系统，包括太阳能电池组、太阳能控制器、整车控制器、第一动力电池组、第二动力电池组、电机控制器和驱动电动机，所述太阳能电池组和太阳能控制器电连接，电机控制器和驱动电动机电连接，太阳能控制器和电机控制器分别与整车控制器电连接，所述整车控制器包括充电SA和电门SA，所述的充电SA和电门SA均为转换开关，所述充电SA电连接第一动力电池组和第二动力电池组，所述电门SA电连接第一动力电池组和第二动力电池组，所述充电SA和太阳能控制器电连接，所述电门SA和电机控制器电连接。
当电门SA接通第一动力电池组时，第一动力电池组通过电门SA对电机控制器供电进而带动驱动电动机运转，此时充电SA接通第二动力电池组，太阳能电池组通过充电SA对第二动力电池组进行充电；
第一动力电池组电量快耗尽时，可转换充电SA接通第一动力电池组对其进行充电，转换电门SA接通第二动力电池组使其对电机控制器供电；
该纯电动动力系统的第一动力电池组和第二动力电池组交替循环充电和交替循环提供动力，可实现车辆一边运行一边充电，利用了太阳能资源，同时也节省了充电时间。
优选地，所述的充电SA有三个转换节点，其中一个转换节点为断路节点，另两个转换节点分别电连接第一动力电池组和第二动力电池组。
优选地，所述的电门SA有三个转换节点，其中一个转换节点为断路节点，另两个转换节点分别电连接第一动力电池组和第二动力电池组。
优选地，所述的第一动力电池组和第二动力电池组的容量和规格相同。
优选地，所述的第一动力电池组和第二动力电池组均由电池控制系统BMS和动力电池组成。
优选地，所述的太阳能控制器为二极管。
优选地，所述的驱动电动机为永磁同步电机。
 有益效果
本发明的有益效果为：
1、通过充电SA和电门SA的转换，在电动汽车行驶过程中，车载的第一动力电池组和第二动力电池组可交替循环充电和交替循环提供动力。
2、利用太阳能进行充电，实现了自然能源的充分利用，节约能源，同时也提供了一种便捷的充电方式。
 附图说明
图1是本发明纯电动动力系统的结构框图；
图2是本发明纯电动动力系统的电路原理图；
图3是本发明纯电动动力系统实施例1的电路图。
图中：1-整车控制器；2-太阳能电池组；3-太阳能控制器；4-第一动力电池组；5-第二动力电池组；6-电机控制器；7-驱动电动机；8-充电SA；9-电门SA；10-电池控制系统BMS。
 本发明的最佳实施方式
如图1-3所示，本实施例的一种纯电动动力系统，运用在三轮电动车上，包括太阳能电池组2、太阳能控制器3、整车控制器1、第一动力电池组4、第二动力电池组5、电机控制器6和驱动电动机7。
第一动力电池组4和第二动力电池组5均由电池控制系统BMS10和动力电池组成，电池控制系统BMS10可对动力电池组的工作状况（电池电量、供电电流）进行监控。
第一动力电池组4和第二动力电池组5的容量和规格相同，均为48V、10Ah，第一动力电池组4和第二动力电池组5均为2C充电，正常供电状态下半小时即可充满，充放电寿命＞2500次。
整车控制器1包括充电SA8和电门SA9，充电SA8和电门SA9均为转换开关。
充电SA8的输入端电连接太阳能控制器3，充电SA8的输出端设有三个转换节点，分别标示为“0”节点、“1” 节点和“2” 节点，其中“0”节点为断路节点，“1” 节电连接第一动力电池组4，“2” 节电连接第二动力电池组5。
电门SA9的输出端电连接电机控制器6，电门SA9的输入端设有三个转换节点，分别标示为“0＇”节点、“1＇”节点和“2＇”节点，其中“0＇”节点为断路节点，“1＇” 节电连接第一动力电池组4，“2＇” 节电连接第二动力电池组5。
太阳能电池组2的工作电压为48V，工作电流为12.5A，太阳能电池组2和太阳能控制器3电连接，太阳能电池组2将太阳能转换为电能，并经由太阳能控制器3通过充电SA8对第一动力电池组4或第二动力电池组5进行充电。
太阳能控制器3为二极管，其作用是保证太阳能电池组2单向为第一动力电池组4、第二动力电池组5充电，同时防止第一动力电池组4、第二动力电池组5对太阳能电池组2形成电流反充。
电机控制器6电连接驱动电动机7，驱动电动机7为500W的永磁同步电机，工作电压为48V，工作电流为10A。第一动力电池组4或第二动力电池组5通过电门SA9对电机控制器6进行供电进而带动驱动电动机7运转，驱动电动机7带动三轮电动车运行。
该纯电动动力系统的工作过程：
1、三轮电动车运行时，第一动力电池组4为预先充满电状态，第二动力电池组5为无电状态，通过整车控制器1的电门SA9处在“1＇”节点的位置接通第一动力电池组4为电机控制器6供电，电机控制器6带动驱动电动机7为三轮电动车提供动力，整车控制器1的充电SA8处在“2” 节点的位置，太阳能电池组2接收太阳光将太阳能转化为电能，通过太阳能控制器3对第二动力电池组5充电。
三轮电动车载运行过程中，电池控制系统BMS10对第一动力电池组4和第二动力电池组5进行监控，当第二动力电池组5电量充满时，整车控制器1的充电SA8处在“0” 节点的位置，充电SA8处于断路状态，保护第二动力电池组5。
在第一动力电池组4电量快耗完时，转换电门SA9到“2＇”节点的位置，由已充满的第二动力电池组5为电机控制器6供电，电机控制器6带动驱动电动机7为三轮电动车提供动力，同时转换充电SA8到“1” 节点的位置，太阳能电池组2接收太阳光将太阳能转化为电能，通过太阳能控制器3对第一动力电池组4进行充电。
以上充电和动力提供过程可交替无限循环。通过这样的循环可以实现大里程续行，甚至在阳光充足的天气可以实现无限续行。
2、三轮电动车运行时，第一动力电池组4、第二动力电池组5均为预先充满电状态，通过整车控制器1的电门SA9处在“1＇”节点的位置接通第一动力电池组4为电机控制器6供电，电机控制器6带动驱动电动机7为三轮电动车提供动力，整车控制器1的充电SA8处在“0” 节点的位置，充电SA8处于断路状态。
三轮电动车载运行过程中，电池控制系统BMS10对第一动力电池组4和第二动力电池组5进行监控，在第一动力电池组4电量快耗完时，转换电门SA9到“2＇”节点的位置，由第二动力电池组5为电机控制器6供电，电机控制器6带动驱动电动机7为三轮电动车提供动力，同时转换充电SA8到“1” 节点的位置，太阳能电池组2接收太阳光将太阳能转化为电能，通过太阳能控制器3对第一动力电池组4进行充电。
以上充电和动力提供过程可交替无限循环。通过这样的循环可以实现大里程续行，甚至在阳光充足的天气可以实现无限续行。
3、在三轮电动车不运行时，整车控制器1的电门SA9处在“0＇”节点的位置，需要对三轮电动车充电时，整车控制器1的充电SA8处在“1” 节点对第一动力电池组4充电或处在“2” 节点的位置对第二动力电池组5充电，当第一动力电池组4和第二动力电池组5均充满电时，整车控制器1的充电SA8处在“0” 节点的位置。
 工业实用性
该纯电动动力系统利用安装在车上的太阳能电池组2发电，为两组电池容量和规格相同的动力电池组交替循环充电和交替循环提供动力，使得车辆在运行中充电，从而解决了车辆持续里程小和充电难的问题，实现了车辆的大里程续行，甚至在阳光充足的天气可以实现无限续行，同时在车辆不运行时把车辆放在阳光充足的地方可以继续为两组动力电池组充电，实现了能源的充分利用，节约了能源。

Claims (7)

  1. 一种纯电动动力系统，其特征在于：包括太阳能电池组（2）、太阳能控制器（3）、整车控制器（1）、第一动力电池组（4）、第二动力电池组（5）、电机控制器（6）和驱动电动机（7），所述太阳能电池组（2）和太阳能控制器（3）电连接，电机控制器（6）和驱动电动机（7）电连接，太阳能控制器（3）和电机控制器（6）分别与整车控制器（1）电连接，所述整车控制器（1）包括充电SA（8）和电门SA（9），所述的充电SA（8）和电门SA（9）均为转换开关，所述充电SA（8）电连接第一动力电池组（4）和第二动力电池组（5），所述电门SA（9）电连接第一动力电池组（4）和第二动力电池组（5），所述充电SA（8）和太阳能控制器（3）电连接，所述电门SA（9）和电机控制器（6）电连接。
  2. 根据权利要求1所述的一种纯电动动力系统，其特征在于：所述的充电SA（8）有三个转换节点，其中一个转换节点为断路节点，另两个转换节点分别电连接第一动力电池组（4）和第二动力电池组（5）。
  3. 根据权利要求1所述的一种纯电动动力系统，其特征在于：所述的电门SA（9）有三个转换节点，其中一个转换节点为断路节点，另两个转换节点分别电连接第一动力电池组（4）和第二动力电池组（5）。
  4. 根据权利要求1所述的一种纯电动动力系统，其特征在于：所述的第一动力电池组（4）和第二动力电池组（5）的容量和规格均相同。
  5. 根据权利要求1所述的一种纯电动动力系统，其特征在于：所述的第一动力电池组（4）和第二动力电池组（5）均由电池控制系统BMS（10）和动力电池组成。
  6. 根据权利要求1所述的一种纯电动动力系统，其特征在于：所述的太阳能控制器（3）为二极管。
  7. 根据权利要求1所述的一种纯电动动力系统，其特征在于：所述的驱动电动机（7）为永磁同步电机。
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