WO2022016702A1 - 一种电气车辆地面控制系统及其车辆接近控制方法 - Google Patents

一种电气车辆地面控制系统及其车辆接近控制方法 Download PDF

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Publication number
WO2022016702A1
WO2022016702A1 PCT/CN2020/117516 CN2020117516W WO2022016702A1 WO 2022016702 A1 WO2022016702 A1 WO 2022016702A1 CN 2020117516 W CN2020117516 W CN 2020117516W WO 2022016702 A1 WO2022016702 A1 WO 2022016702A1
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power supply
vehicle
supply module
magnetic field
field sensors
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PCT/CN2020/117516
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English (en)
French (fr)
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李雪莉
高洪光
奚国华
李新
张立臣
刘欢
韩树明
宋夕政
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中车大连机车车辆有限公司
大连辽南仪表有限公司
大连东软信息学院
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Publication of WO2022016702A1 publication Critical patent/WO2022016702A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/02—Details
    • B60M1/10—Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
    • B60M1/103—Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle by vehicle-borne magnets

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  • the present invention relates to the technical field of electric vehicle power supply, in particular to a vehicle approach confirmation control method and device of an electric vehicle ground power supply system.
  • ground power supply technology for electric vehicles is beginning to be favored by city builders due to its advantages of eliminating overhead network cables, convenient and safe access, and favorable urban landscape.
  • This ground power technology originally used contact switch circuit modules to continuously supply power to the vehicle in sections.
  • the conductor element of the module is disconnected from the ground potential, and the positive feed line is connected to the conductor element of the module; when the vehicle is far away, the magnetic force on the vehicle is lost.
  • the pick-up device With the action of the pick-up device, the feeder is disconnected from the conductor element of the module, which is restored to ground potential.
  • the power supply module is directly connected to the power supply system, and the fault diagnosis in the system does not have the function of isolating the fault of the power supply module; Make the module positively electrified and endanger personal safety; use a safety negative circuit to ground the surface of the module when there is no vehicle operation; since the safety negative circuit is connected with multiple bolts, when the bolts are corroded or loosened, the safety negative circuit will open, resulting in protection failure .
  • the above problems have been well solved in Chinese patent application No. 201910804298.4.
  • the patent application proposes a ground power supply device for electric vehicles.
  • Adjacent power supply rails are insulated and connected to each other to form a power supply rail line.
  • a power switch circuit connected between the positive pole of the power supply and the power supply rail;
  • a safety The grounding switch circuit is connected between the power supply rail and the safety negative pole;
  • a controller receives the vehicle approaching signal and the electrical signal of the power supply rail, and controls the on-off of the power switch circuit and the safety grounding switch circuit.
  • the non-contact electronic switch is used to lead the power supply to the power supply rail, and the safety negative safety grounding switch circuit is introduced to solve the problem of power supply safety.
  • the power supply rail module in other positions automatically shuts down the power supply and ensures safe grounding.
  • the embodiments of the present invention provide a vehicle approach confirmation control method and device for an electric vehicle ground power supply system, so as to solve the problems of the prior art.
  • a vehicle approach confirmation control method for an electric vehicle ground power supply system disclosed in an embodiment of the present invention
  • a magnetic signal covering strip is arranged at the bottom of the vehicle, and N magnetic field sensors are uniformly arranged sequentially and uniformly on each power supply module on the line along the traveling direction of the vehicle, 2 ⁇ N, the control steps are as follows:
  • a magnetic signal of the vehicle bottom cover strip a uniform order in the vehicle traveling direction
  • each module is provided on the power line N magnetic field sensors, 2 ⁇ N, the length of the magnetic signal of the cover strip L MB ⁇ nL S, where 1 ⁇ n ⁇ N, L S is the distance between adjacent magnetic field sensors
  • the power switch is connected between the positive pole of the power supply and the power supply module
  • the safety grounding switch is connected between the power supply module and the safety negative pole
  • the input terminal of the surface potential detection circuit of the power supply module is connected to
  • the controller receives the vehicle magnetic signal detected by the magnetic field sensor and the output signal of the potential detection circuit, and controls the on-off of the power switch and the safety grounding switch.
  • each of the adjacent power supply modules has m magnetic field sensors arranged at the position of the opposite end, n ⁇ m ⁇ N.
  • the resistors R1 and R2 are connected in series between the power supply module and the safety negative electrode, the contact between the resistors R1 and R2 is connected to the controller, the cathode of the diode D1 is connected to the power supply module, and the anode passes through the resistor R3.
  • the anode of diode D1 and the junction of resistor R3 are connected to the controller.
  • an embodiment of the present invention also discloses a ground power supply system for an electric vehicle, which adopts the above control method and the devices described in claims 2, 3, 4, and 5.
  • the embodiment of the present invention also discloses a controller, comprising:
  • the computer program is stored in the memory and configured to be executed by the processor, the computer program including instructions for the control method of claim 1 .
  • An embodiment of the present invention further discloses a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program enables the controller to execute the above-mentioned control method.
  • the present invention at least has the following beneficial effects:
  • the length of the magnetic signal cover strip L MB ⁇ nL S can ensure that when the magnetic signal cover strip and the power receiving shoes are lowered, they can cover the small n adjacent magnetic field sensors, so that the power supply module where they are located can supply power immediately; n value is 2 and above At the same time, it can further prevent the misoperation caused by the influence of external factors such as children playing with the magnet block.
  • Each of the adjacent power supply modules has m magnetic field sensors arranged at the end of the other side. When the magnetic signal covering strip travels to the end of the current power supply module, the adjacent power supply module immediately enters the power supply state in advance, which provides a reliable guarantee for smooth and continuous power supply.
  • FIG. 1 is a schematic diagram of a vehicle approach confirmation control device of an electric vehicle ground power supply system according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a vehicle approach confirmation control method of an electric vehicle ground power supply system according to an embodiment of the present invention.
  • the vehicle approach confirmation control device of the ground power supply system for electric vehicles according to the embodiment of the present invention
  • the magnetic signal set at the bottom of the vehicle covers MB
  • the length of each power supply module on the line is 3m
  • 13 magnetic field sensors MS are uniformly arranged in sequence along the traveling direction of the vehicle
  • two magnetic field sensors are arranged at the ends of adjacent power supply modules at both ends.
  • the power switch PS is connected between the positive pole of the power supply and the power supply module PM
  • the safety grounding switch ES is connected between the power supply module PM and the safety negative pole
  • the potential detection circuit PD is connected to the power supply module PM
  • the controller CONTROL receives the vehicle magnetic field detected by the magnetic field sensor.
  • the output signal of the signal and potential detection circuit controls the on-off of the power switch and the safety grounding switch.
  • the resistors R1 and R2 are connected in series between the power supply module and the safety negative electrode, the contact between the resistors R1 and R2 is connected to the controller, the cathode of the diode D1 is connected to the power supply module, and the anode is connected to a safety terminal through the resistor R3.
  • Low-voltage DC power supply, the anode of diode D1 and the junction of resistor R3 are connected to the controller.
  • the vehicle approach confirmation control method of the electric vehicle ground power supply system starts to initialize. Go to box 1 and detect the vehicle magnetic signal. Enter the judgment box 2 to see if the number of magnetic field sensors Sn ⁇ 2 that simultaneously measure the vehicle magnetic signal: if yes, enter the box A1; otherwise, enter the box B1. In block A1, the safety grounding switch is disconnected, and the power supply module is no longer connected to the safety negative pole. Enter the judgment box A2, and check whether the potential of the power supply module is in a floating state, that is, whether the potential of the anode of the diode D1 and the contact of the resistor R3 is a high potential; Judgment box 4; otherwise, go to box A5, the alarm fails.
  • the judgment box A4 check whether the number Sn ⁇ 2 of the magnetic field sensors that measure the vehicle magnetic signal at the same time: if yes, then loop in place; otherwise, enter the box B1.
  • the power switch is turned off and the power supply is no longer connected to the power supply module.
  • the potential of the power supply module is in a floating state, that is, whether the potential of the contact between resistors R1 and R2 is low potential: if yes, enter frame B3, turn on the safety grounding switch, connect the power supply module to the safety negative pole, and then Enter the judgment box B4; otherwise, enter the box B5, and the alarm fails.
  • the judgment box B4 check whether the number Sn ⁇ 2 of the magnetic field sensors that measure the vehicle magnetic signal at the same time: otherwise, loop in place; if yes, enter the box A1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

一种电气车辆地面供电系统车辆接近确认控制方法，车辆底部设置磁信号覆盖条，线路上的每个供电模块沿车辆行进方向顺序均匀设置N个磁场传感器，当n个磁场传感器同时测到车辆磁信号时，断开供电模块与安全负极的连接，接通电源与供电模块的连接；否则断开电源与供电模块的连接，接通供电模块与安全负极的连接。该方法可以准确无误地确认车辆接近状态，及时安全地接通或切断电源或安全负极与供电模块的连接，彻底杜绝各种移动通讯设备对车辆安全运行及地面安全供电的不良影响。n取值2及以上时，可以进一步杜绝外界因素影响，例如儿童玩弄磁铁块而造成的误动作。

Description

一种电气车辆地面控制系统及其车辆接近控制方法 技术领域
本发明涉及电气车辆供电技术领域，具体涉及一种电气车辆地面供电系统车辆接近确认控制方法及装置。
背景技术
电气车辆地面供电技术由于具有取消架空网线、方便安全接近、有利城市景观等著多优点，正开始得到城市建设者们的青睐。这种地面供电技术最初是采用接触式开关电路模块，分段连续为车辆供电。当车辆临近时，借助于车辆上磁力拾取设备的作用，使模块的导体元件断开与地电位的连接，正极馈电线与模块的导体元件接通；而当车辆远离时，失去了车辆上磁力拾取设备的作用，馈电线便与模块的导体元件断开，模块的导体元件恢复与地电位的连接。这种方式故障较多，经常出现短路；供电模块直接连接到供电系统中，系统中的故障诊断不具备对供电模块的故障进行隔离的功能；当模块出现故障时，会出现正极触头粘连，使模块带正电，危机人身安全；无车辆运营时采用安全负极回路使模块表面接地；由于安全负极线路有多处螺栓连接，当螺栓锈蚀或松动时，会出现安全负极回路开路，造成保护失效。
上述问题在201910804298.4号中国专利申请中得到了较好地解决。该专利申请提出了一种电气车辆地面供电装置，相邻供电轨互相绝缘连接构成供电轨线，针对每段供电轨，设置：一个电源开关电路，接在电源正极和供电轨之间；一个安全接地开关电路，接在供电轨和安全负极之间；一个控制器，接收车辆接近信号和供电轨的电气信号，控制电源开关电路和安全接地开关电路的通断。采用无触点电子开关将电源引到供电轨，引入安全负极安全接地开关电路，解决了供电安全问题，实现供电轨模块仅在 车辆受流器附近的一定距离内电源快速输出，使车辆受流器连续受流，其它位置的供电轨模块自动关闭电源并保证安全接地。
现有技术中，惯例是根据车载通信设备与延线布置的控制信标之间通信来确认车辆的接近状态，从而对车辆实施控制。但是无论是在地面上还是在车辆上，都存在大量的移动通讯设备，对车载通信设备和控制信标之间的通信造成干扰，这些干扰会引起供电系统的误动作，影响车辆的正常运行，甚至危及人身安全。
发明内容
为解决上述技术问题，本发明实施例提出一种电气车辆地面供电系统车辆接近确认控制方法及装置，以解决现有技术的问题。
一方面，本发明实施例所公开的一种电气车辆地面供电系统车辆接近确认控制方法，车辆底部设置磁信号覆盖条，线路上的每个供电模块沿车辆行进方向顺序均匀设置N个磁场传感器，2≤N，控制步骤如下：
A.车辆接近供电模块时，其磁信号覆盖条依次覆盖磁场传感器；车辆远离供电模块时，其磁信号覆盖条依次离开磁场传感器；
B.当同时测得车辆磁信号的磁场传感器个数S n≥n时，断开供电模块与安全负极的连接，检测供电模块的电位为悬空状态后，接通电源与供电模块的连接,1≤n＜N；
C.当同时测得车辆磁信号的磁场传感器个数S n＜n时，断开电源与供电模块的连接，检测供电模块的电位为悬空状态后，接通供电模块与安全负极的连接。
进一步地，车辆底部设置磁信号覆盖条，线路上每个供电模块沿车辆行进方向顺序均匀设置N个磁场传感器，2≤N，磁信号覆盖条的长度L MB≥nL S，式中1≤n＜N，L S为相邻磁场传感器间的距离,电源开关接在电源正极和供电模块之间，安全接地开关接在供电模块和安全负极之间，供电模块表面电位检测电路的输入端接在供电模块上，控制器接收磁场传感器检 测的车辆磁信号和电位检测电路的输出信号，控制电源开关和安全接地开关的通断。
进一步地，相邻供电模块各有m个磁场传感器布置于对方端部位置,n≤m＜N。
进一步地，所述n＝2。
进一步地，所述电位检测电路PD，电阻R1和R2串联在供电模块和安全负极之间，电阻R1和R2之间的接点接至控制器，二极管D1的阴极接至供电模块，阳极通过电阻R3接至一个安全低压直流电源，二极管D1的阳极和电阻R3的接点接至控制器。
另一方面，本发明实施例还公开了一种电气车辆地面供电系统，采用上述的控制方法、权利要求2、3、4、5所述的装置。
本发明实施例还公开了一种控制器，包括：
处理器；
存储器；以及
计算机程序；
其中，所述计算机程序被存储在所述存储器中，并且被配置为由所述处理器执行，所述计算机程序包括用于如权利要求1所述控制方法的指令。
本发明实施例还公开了一种计算机可读存储介质，所述计算机可读存储介质存有计算机程序，所述计算机程序使得控制器执行上述的控制方法。
采用上述技术方案，本发明至少具有如下有益效果：
可以准确无误地确认车辆接近状态，及时安全地接通或切断电源或安全负极与供电模块的连接，彻底杜绝各种移动通讯设备对车辆安全运行及地面安全供电的不良影响。磁信号覆盖条的长度L MB≥nL S，可保证磁信号覆盖条及受电靴降下时，即可覆盖至小n个相邻磁场传感器，令所在供电模块即刻供电；n取值2及以上时，可以进一步杜绝外界因素影响例如儿童玩弄磁铁块而造成的误动作。相邻供电模块各有m个磁场传感器布置于对 方端部位置，当磁信号覆盖条行进至当前供电模块端部时，邻近供电模块即刻提前进入供电状态，为平滑连续供电提供了可靠保证。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例的电气车辆地面供电系统车辆接近确认控制装置原理图。
图2为本发明实施例的电气车辆地面供电系统车辆接近确认控制方法流程图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
参看图1，本发明实施例的电气车辆地面供电系统车辆接近确认控制装置，车辆底部设置的磁信号覆盖MB，线路上每个供电模块长3m，沿车辆行进方向顺序均匀设置13个磁场传感器MS，两端各有2个磁场传感器布置于相邻供电模块端部位置。相邻磁场传感器的间距为L S＝33cm,磁信号覆盖条的长度为L MB＝67cm。
电源开关PS接在电源正极和供电模块PM之间，安全接地开关ES接在供电模块PM和安全负极之间，电位检测电路PD接在供电模块PM上，控制器CONTROL接收磁场传感器检测的车辆磁信号和电位检测电路的输出信号，控制电源开关和安全接地开关的通断。所述电位检测电路，电阻R1和R2串联在供电模块和安全负极之间，电阻R1和R2之间的接点接至控制器，二极管D1的阴极接至供电模块，阳极通过电阻R3接至一个安全低压直流电源，二极管D1的阳极和电阻R3的接点接至控制器。
参看附图2，本发明实施例的电气车辆地面供电系统车辆接近确认控制方法，开始初始化。进入框1，检测车辆磁信号。进入判断框2，看是否同时测得车辆磁信号的磁场传感器个数Sn≥2：是则进入框A1；否则进入框B1。在框A1，断开安全接地开关，供电模块与安全负极不再连接。进入判断框A2，检测供电模块的电位是否为悬空状态，即二极管D1阳极和电阻R3的接点的电位是否为高电位：是则进入框A3，接通电源开关，电源向供电模块供电，然后进入判断框4；否则进入框A5，报警发生故障。在判断框A4，看是否同时测得车辆磁信号的磁场传感器个数Sn≥2：是则原地循环；否则进入框B1。在框B1，断开电源开关，电源不再与供电模块连接。进入框B2，检测供电模块的电位是否为悬空状态，即电阻R1和R2之间接点的电位是否为低电位：是则进入框B3，接通安全接地开关，使供电模块与安全负极连接，然后进入判断框B4；否则进入框B5，报警发生故障。在判断框B4，看是否同时测得车辆磁信号的磁场传感器个数Sn≥2：否则原地循环；是则进入框A1。
所属领域的普通技术人员应当理解：以上任何实施例的讨论仅为示例性的，并非旨在暗示本发明实施例公开的范围(包括权利要求)被限于这些例子；在本发明实施例的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，并存在如上所述的本发明实施例的不同方面的许多其它变化，为了简明它们没有在细节中提供。因此，凡在本发明实施例的精神和原则之内，所做的任何省略、修改、等同替换、改进等，均应包括在本发明实施例的保护范围之内。

Claims (8)

  1. 一种电气车辆地面供电系统车辆接近确认控制方法，其特征在于车辆底部设置磁信号覆盖条，线路上的每个供电模块沿车辆行进方向顺序均匀设置N个磁场传感器，2≤N，控制步骤如下：
    A.车辆接近供电模块时，其磁信号覆盖条依次覆盖磁场传感器；车辆远离供电模块时，其磁信号覆盖条依次离开磁场传感器；
    B.当同时测得车辆磁信号的磁场传感器个数S n≥n时，断开供电模块与安全负极的连接，检测供电模块的电位为悬空状态后，接通电源与供电模块的连接,1≤n＜N；
    C.当同时测得车辆磁信号的磁场传感器个数S n＜n时，断开电源与供电模块的连接，检测供电模块的电位为悬空状态后，接通供电模块与安全负极的连接。
  2. 根据权利要求1所述控制方法的装置，其特征在于车辆底部设置磁信号覆盖条，线路上每个供电模块沿车辆行进方向顺序均匀设置N个磁场传感器，2≤N，磁信号覆盖条的长度L MB≥nL S，式中1≤n＜N，L S为相邻磁场传感器间的距离,电源开关接在电源正极和供电模块之间，安全接地开关接在供电模块和安全负极之间，供电模块表面电位检测电路的输入端接在供电模块上，控制器接收磁场传感器检测的车辆磁信号和电位检测电路的输出信号，控制电源开关和安全接地开关的通断。
  3. 根据权利要求2所述的装置，其特征在于相邻供电模块各有m个磁场传感器布置于对方端部位置,n≤m＜N。
  4. 根据权利要求2、3所述的装置，其特征在于所述n＝2。
  5. 根据权利要求2所述的装置，其特征在于所述电位检测电路PD，电阻R1和R2串联在供电模块和安全负极之间，电阻R1和R2之间的接点接至控制器，二极管D1的阴极接至供电模块，阳极通过电阻R3接至一个安全低压直流电源，二极管D1的阳极和电阻R3的接点接至控制器。
  6. 一种电气车辆地面供电系统，其特征在于采用权利要求1所述的控制方 法、权利要求2、3、4、5所述的装置。
  7. 一种控制器，其特征在于包括：
    处理器；
    存储器；以及
    计算机程序；
    其中，所述计算机程序被存储在所述存储器中，并且被配置为由所述处理器执行，所述计算机程序包括用于如权利要求1所述控制方法的指令。
  8. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存有计算机程序，所述计算机程序使得控制器执行如权利要求1所述的控制方法。
PCT/CN2020/117516 2020-07-21 2020-09-24 一种电气车辆地面控制系统及其车辆接近控制方法 WO2022016702A1 (zh)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061089A (en) * 1975-09-02 1977-12-06 Elbert Morgan Sawyer Personal rapid transit system
US5361707A (en) * 1992-04-24 1994-11-08 Railway Technical Research Institute Multiple feeder system of feeder sections for feeding ground coils of superconductive magnetically levitated railway
CN201357765Y (zh) * 2009-02-26 2009-12-09 温应群 双机热备型自动过分相装置
CN102271961A (zh) * 2009-11-24 2011-12-07 北口弘正 在车辆行驶过程中充电的交通系统
CN106364326A (zh) * 2016-08-31 2017-02-01 袁志敏 电车自适应供电系统
CN207923472U (zh) * 2017-12-29 2018-09-28 成都森川科技股份有限公司 一种地感器磁场强度检测装置
CN111688545A (zh) * 2020-07-21 2020-09-22 中车大连机车车辆有限公司 一种电气车辆地面控制系统及其车辆接近控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791929B1 (fr) * 1999-04-07 2004-09-10 Soc Gle Techniques Etudes Dispositif de detection de presence de vehicule a fiabilite amelioree
CN207542485U (zh) * 2017-10-17 2018-06-26 大连中车有轨电车系统有限公司珠海分公司 地面供电系统的弹性接触装置
CN108859873B (zh) * 2018-06-14 2022-04-08 中车大连机车车辆有限公司 带有故障诊断功能的安全负极单向导通装置
CN213768316U (zh) * 2020-07-21 2021-07-23 中车大连机车车辆有限公司 一种电气车辆地面供电系统及车辆接近确认控制装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061089A (en) * 1975-09-02 1977-12-06 Elbert Morgan Sawyer Personal rapid transit system
US5361707A (en) * 1992-04-24 1994-11-08 Railway Technical Research Institute Multiple feeder system of feeder sections for feeding ground coils of superconductive magnetically levitated railway
CN201357765Y (zh) * 2009-02-26 2009-12-09 温应群 双机热备型自动过分相装置
CN102271961A (zh) * 2009-11-24 2011-12-07 北口弘正 在车辆行驶过程中充电的交通系统
CN106364326A (zh) * 2016-08-31 2017-02-01 袁志敏 电车自适应供电系统
CN207923472U (zh) * 2017-12-29 2018-09-28 成都森川科技股份有限公司 一种地感器磁场强度检测装置
CN111688545A (zh) * 2020-07-21 2020-09-22 中车大连机车车辆有限公司 一种电气车辆地面控制系统及其车辆接近控制方法

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