CN102574476B - 用于在电动汽车与充电站之间通信的方法 - Google Patents

用于在电动汽车与充电站之间通信的方法 Download PDF

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CN102574476B
CN102574476B CN201080031585.3A CN201080031585A CN102574476B CN 102574476 B CN102574476 B CN 102574476B CN 201080031585 A CN201080031585 A CN 201080031585A CN 102574476 B CN102574476 B CN 102574476B
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charging
battery
charging station
electronlmobil
signaling
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CN102574476A (zh
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J.霍伊尔
M.温特
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Siemens AG
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    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods 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
    • B60L53/14Conductive energy transfer
    • B60L53/18Cables specially adapted for charging electric vehicles
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    • B60L53/16Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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    • H02J7/00032Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00045Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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    • H02J7/0042Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B60L2270/00Problem solutions or means not otherwise provided for
    • B60L2270/30Preventing theft during charging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2270/00Problem solutions or means not otherwise provided for
    • B60L2270/30Preventing theft during charging
    • B60L2270/32Preventing theft during charging of electricity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2270/00Problem solutions or means not otherwise provided for
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01R13/6397Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap with means for preventing unauthorised use
    • HELECTRICITY
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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

本发明涉及用于在电动汽车(1)与用于对该电动汽车(1)的至少一个蓄能器(1a)充电的充电站(2)之间通信的方法,其中,该电动汽车(1)在充电过程中通过在与该电动汽车(1)连接的充电电缆(4)的端子(3)与该充电站(2)的端子(5)之间的可联锁的机械耦合连接到充电站(2)上。通过该充电电缆(4)从充电站(2)对所述至少一个蓄能器(1)输入充电电流,其中在充电过程的范围中信息基于电动汽车(1)与充电站(2)之间的通信传输。根据本发明,传输的信息包括用于联锁或者联锁和去联锁机械耦合的、从电动汽车(1)传送到充电站(2)的信号,其中,通过该信号在充电站中触发充电电缆(4)的端子(3)与充电站(2)的端子(5)之间的机械耦合的联锁或者联锁和去联锁。

Description

用于在电动汽车与充电站之间通信的方法
技术领域
本发明涉及一种用于在电动汽车与对电动车的至少一个蓄能器充电的充电站之间通信的方法和一种相应的通信系统以及电动汽车和充电站。
背景技术
电动汽车的电蓄能器现在可在为其设置的充电站处重复充电。为此,汽车用户通过充电电缆将其汽车与充电站相连接并且以适当的方式初始化充电过程,例如通过在充电站上借助代码的认证。在充电过程范围中,在此通过一个或多个通信信道在汽车与充电站之间传送涉及充电过程的信息。
为了避免在充电过程期间未经授权地从充电站移除充电电缆,公知的是,为在充电时与充电站的相应端子连接的充电电缆的端子装备一个联锁装置,该联锁装置通过密码或通过输入数字代码联锁充电站上的充电电缆的端子。但是,这类的联锁被证实在电动汽车的广泛应用时并不适用,因为对此必须为大量的使用者、必要时也对充电站的不同操作者给出相应的密码或数字代码。
发明内容
因此,本发明的任务是,在电动汽车在充电站处的充电过程范围中,能够简单地实现在充电站的端子上联锁或去联锁充电电缆的端子。
该任务通过用于在电动汽车与用于对该电动汽车的至少一个蓄能器充电的充电站之间通信的方法或者用于在电动汽车与用于对该电动汽车的至少一个蓄能器充电的充电站之间通信的系统或者充电站来解决。
在根据本发明的用于电动汽车与充电站之间通信的方法中,电动汽车在充电过程中通过在与电动汽车相连接的充电电缆的端子与充电站的端子之间可联锁的机械耦合连接到充电站上,以便通过该充电电缆将充电电流从充电站输入电动汽车的至少一个电蓄能器。在充电过程范围中,在此信息基于电动汽车与充电站之间的通信地被传送。在此,概念“在充电过程范围中”可被宽泛地解释并且尤其是包括在充电过程期间和/或在充电过程的准备阶段中和/或接着充电过程后续的、例如用于初始化或结束充电过程的信息传送。
根据本发明方法的突出之处在于,传输的信息包括从电动汽车传送到充电站上的、用于联锁和/或去联锁机械耦合的信令,其中通过充电站中的该信令,触发对充电电缆的端子与充电站的端子之间机械耦合的联锁和/或去联锁。
通过根据本发明的方法,以合适的方式通过电动汽车实现在充电站的相应端子上远程联锁或远程去联锁充电电缆的端子。所述联锁或去联锁通过汽车与充电站之间的通信引起,使得根据本发明借助相应的密码或数字代码直接在充电站上进行联锁或去联锁不是必需的。
根据本发明可以不同的方式和方法来进行用于去联锁或联锁机械耦合的信令(Signalisierung),尤其是可使用已经公知的信号或信号序列用于信令化,它们目前在充电站中也被这样解释:即,由此在充电站上实现了充电电缆的端子的联锁或去联锁。但是,也可为了联锁或去联锁将单独的、仅设置用于联锁或去联锁过程的控制信号从汽车传输给充电站,以便在那里触发联锁或去联锁。
在充电电缆的端子与充电站的端子之间的可联锁的机械耦合可被任意地构造。在一个优选变型中,该耦合是一种插接连接,其中充电电缆的插头被插入充电站中的相应插座中。由此可通过适当的联锁装置、例如通过一个或多个配合到对应槽中的销引起联锁。在此,联锁通常可被这样理解为充电电缆的端子在充电站的端子上的固定,使得未被认证的用户不能或仅在权限作用下可彼此分离这些端子。
在根据本发明方法的一个特别优选的实施形式中,用于联锁和/或去联锁机械耦合的信令与涉及电动汽车的至少一个蓄能器的充电过程和/或充电状态的信令耦合,尤其是与用于启动和/或结束充电过程的信令和/或用于通过充电站在充电电缆上施加和/或断开电压的信令耦合。但是,替换或附加地也存在如下可能性:这样地构造用于联锁和/或去联锁机械耦合的信令,使得它从涉及电动汽车的至少一个蓄能器的充电过程和/或充电状态的信令中脱耦。
为了在电动汽车与充电站之间通信,可使用一个或多个任意构造的通信连接。尤其是也可使用已经由现有技术公开的通信连接。在一个优选的变型中通过下述通信连接中的至少一个传送用于联锁和/或去联锁机械耦合的信令:
- 通过充电电缆的一个或多个线路的PLC-通信连接(PLC- Power Line Communication:电力线通信),所述线路必要时也可是导电的;
- 诸如例如通过在下面进一步描述的导销(Pilotpin)的、在充电电缆中的与导电线路分开的控制连接,其中借助导销在充电电缆中提供并行于导电线路的通信路径;
- 诸如例如借助基于无线局域网(WLAN)、蓝牙及类似技术的无线电传输的、与充电电缆分开的通信连接。
在使用与充电电缆分开的通信连接时或在PLC-通信连接时,数据传输优选基于分组地进行。与此相比,信息传输通过充电电缆中的与导电线路分开的控制连接优选借助脉宽-及幅度调制来实现。
在用于通过控制连接联锁或去联锁机械耦合的信令的一个特别优选的实施形式中,充电站通过控制连接显示电动汽车的多个状态,其中这些状态包括显示电动汽车准备好充电其至少一个蓄能器的第一状态,以及显示电动汽车的至少一个蓄能器通过充电电缆被充电的第二状态,其中,在第一与第二状态之间的转换表示一个信令,通过该信令触发对充电电缆的端子与充电站的端子之间机械耦合的联锁,及其中从第二到第一状态的转换表示一个信令,通过该信令触发在充电电缆的端子与充电站的端子之间机械耦合的去联锁。第一和第二状态在此可在必要时通过已经由现有技术公开的方法信令化。尤其是,第一或第二状态可表示状态“准备充电”或“充电中”,这些状态被定义在还处于开发中的标准ISO/IEC 61851,第一部分中或者在已经被采纳的标准SEA J1772中。这些标准规范化了在电动汽车与充电站之间的通信。
为了避免未经授权的联锁或去联锁机械耦合,在根据本发明方法的一个优选实施形式中,在电动汽车与充电站之间的通信范围中进行电动汽车相对充电站的认证,其中仅在成功认证时将用于联锁和/或去联锁机械耦合的信令从电动汽车传送给充电站。
在刚刚说明的变型的一个特别优选的实施形式中,用于进行认证的认证数据通过充电电缆中的上述控制连接传输,其中接着通过充电电缆中的PLC-通信连接和/或与充电电缆分开的通信连接进行认证。在此,认证数据尤其是可包括对汽车和/或汽车用户或相应的数字密码和/或合格证书的识别,这些数据被接着用于认证。
根据本发明可以不同的方式和方法触发用于联锁和/或去联锁机械耦合的信令。例如信令可实现对汽车的中央联锁装置的操作的反应。尤其是,在此在闭锁汽车时借助中央联锁装置触发机械耦合的联锁及在打开汽车时通过中央联锁装置触发机械耦合的去联锁。同样可能的是,用于联锁和/或去联锁机械耦合的信令实现对用户操作电动汽车中的开关的反应。
除了上述方法,本发明还涉及一种用于在电动汽车与用于对电动汽车的至少一个蓄能器充电的充电站之间通信的系统,其中,电动汽车在充电过程中通过在与电动汽车连接的充电电缆的端子与充电站的端子之间的可联锁的机械耦合连接,以便通过充电电缆从充电站为至少一个蓄能器输入充电电流。在此,该系统包括设置用于电动汽车的第一通信控制单元和设置用于充电站的第二通信控制单元,其中,通过第一和第二通信控制单元在系统工作中在充电过程范围中基于电动汽车与充电站之间的通信来传输信息。该第一和第二通信控制单元在此被构造为使得传输的信息包括由第一通信控制单元产生的、用于联锁和/或去联锁机械耦合的信令,其中通过该信令由该第二通信控制单元触发在充电电缆的端子与充电站的端子之间机械耦合的联锁和/或去联锁。
上述系统在此优选被构造为使得可借助该系统执行根据本发明方法的一个或多个变型。
此外,本发明涉及用于在上述根据本发明的方法中使用的电动汽车,包括至少一个蓄能器,其中该电动汽车在充电过程中为了对至少一个蓄能器充电通过在与电动汽车连接的充电电缆的端子与充电站的端子之间的可联锁的机械耦合可连接到充电站上,以便由充电站通过充电电缆为至少一个蓄能器输入充电电流,其中在充电过程范围中基于电动汽车与充电站之间的通信可从电动汽车的一个通信控制单元将信息传输到充电站。在此,通信控制单元被构造为使得它可发送一个预定的、仅设置用于联锁和/或去联锁机械耦合的信令到充电站上,以便在充电站中触发在充电电缆的端子与充电站的端子之间的机械耦合的联锁和/或去联锁。如已经在上面说明地,预定的信令通过通信控制单元例如在操作电动汽车的中央联锁装置和/或电动汽车中的开关时发送。
此外,本发明涉及一个用于在上述根据本发明的方法中使用的充电站。该充电站在此用于对电动汽车的至少一个蓄能器充电,其中电动汽车在充电过程中通过在与电动汽车连接的充电电缆的端子与充电站的端子之间可联锁的机械耦合被连接到充电站,以便通过充电电缆由充电站为至少一个蓄能器输入充电电流。在此充电站包括通信控制单元,在充电过程范围中基于电动汽车与充电站之间的通信可将信息传输到该通信控制单元。该通信控制单元在此被构造为使得它在接收预定的、从电动汽车传送到充电站的信令时触发对在充电电缆的端子与充电站的端子之间机械耦合的联锁和/或去联锁。
附图说明
本发明的实施例在下述根据附图被详细说明。
示出了:
图1   充电站与电动汽车及与其它组件通信的示意图,其中在充电站与汽车的通信范围内可使用根据本发明的方法;
图2   用于连接充电站的充电电缆的插头结构的示意图,其中,插头可借助于根据本发明的方法联锁在充电站中;
图3   用于说明根据本发明方法的可能的变型的、在电动汽车中的通信控制单元与充电站中的通信控制单元之间通信的示图。
具体实施方式
为了实现用于充电电动汽车蓄电池的基础结构目前开发了标准ISO/IEC 61851和ISO/IEC 15118,在电动汽车与用于对汽车蓄电池充电的相应充电站之间的通信应借助所述标准被规范化。下述实施形式被参照所述标准说明。图1示意性地示出了在电动汽车1与相应的充电站2之间的通信,其中充电站2还可与其它逻辑组件通信。根据图1,电动汽车1包括蓄电池1a以及通信控制单元CC。该通信控制单元CC与在充电站或充电柱2内部的相应通信控制单元CC’通信。控制单元CC和CC’之间的通信被示意性地通过实线K表示出。该通信可根据标准族ISO/IEC 61851和ISO/IEC 15118完全地被标准化。
根据图1,汽车通过充电电缆4的插头3与充电柱2的相应插座5连接。根据所示出的场景,想要对他的电动汽车1的蓄电池1a充电的驾驶员已通过充电电缆4将汽车插到充电柱2上,以便以此方式通过充电电缆对蓄电池1a输入充电电流。在此在充电过程范围中实现了在汽车1与充电站2之间的通信K,其中该通信可通过不同通信路径实现,如还要在下面更详细说明的。
为了以适当的方式为车主提供或对其结算汽车得到的电流,根据图1还设有其它组件。电能由网络运营商GO提供给充电柱2,其中网络运营商从电力供应商或电流供应商ES获得能量。从充电站2提取的能量在此被在充电站内部的电力测量装置EM检测。用于充电汽车1的蓄电池所需的能量由结算站CH以适当方式结算出,其中结算站为此与充电站2的通信控制单元CC’通信,如由虚线箭头K’示出的那样。所述通信K’应在标准ISO/IEC 15118中的消息平台上被规范化。
结算站CH可与其它组件通信,其中,与其它组件的通信被虚线地示出,这些虚线出于清楚的原因仅部分地设有参考标记K’’。组件OM在此表示汽车1的原始制造商。组件MB涉及汽车1也所属的移动性操作者、例如汽车车队的出租者。通过组件OS提供了其它的任意构型的增值服务。组件UI是用户接口例如车主1的移动电话,通过该接口可从结算站为车主传送信息。组件ER涉及一个或多个售电商,通过其可替换或附加于所示出的能量供应商ES来获得电流。与其它组件的通信K’’处于根据标准ISO/IEC 15118的标准化之外。结算站CH与充电站2或其它组件之间的通信对于本发明的方法并不重要,从而没有进一步深入研究所述通信路径。
为了在充电站2处为汽车1充电,在此说明的实施形式中使用具有标准化插头3的充电电缆,所述插头的结构以俯视图被示出在图2中。为了电输入三相充电电流,插头包含三个插脚L1,L2和L3以及零线插脚N和接地插脚G。此外,该插头包括也被称为导销的控制插脚P1,以及另外的插脚P2,其中通过该插脚P2经由电阻来检测是否插脚3被插入充电站的相应插座5中。插头3可通过相应的联锁装置被联锁在插座5中,防止未经授权的移除,其中联锁装置从图中不可见。这样一种联锁装置已被现有技术公开并且例如可以如下方式被实现:为了联锁,充电站从插座移出相应的销,所述销配合到设置在插头上的槽中。销或槽在此可以以均匀的间隔沿着插头3的外圆周设置。在一个优选的实施形式中使用三个以60o的角度设置在插头圆周上的销或槽。
以传统的方式,插头3在充电站2的插座5中的联锁通过车主在充电站输入相应的代码而实现。根据本发明方法的目的现在在于,基于在汽车1与充电站2之间的通信K引起联锁或去联锁。为此,适当的信令被从汽车的控制单元CC传送到充电站的控制单元CC’上,其中,控制单元CC’在接收该信令时触发插头3在插座5中的联锁或去联锁。
图3示出了如何能够实现插头3在插座5中联锁或去联锁的信令的不同变型。图3在示意图中再次示出了汽车1侧的通信控制单元CC和充电柱2侧的通信控制单元CC’。汽车中的通信控制单元CC与汽车中的其它组件通信,所述其它组件例如通过方框VC示出。这些组件尤其包括用于汽车蓄电池的充电设备以及蓄电池管理系统。通信控制单元CC在图3的实施形式中还通过第一通信连接KV1与充电站2的通信控制单元CC’通信。此外,该通信控制单元在控制器PPC中间连接在汽车1侧并且控制器PPC’中间连接在充电站2侧的情况下通过第二通信连接KV2与通信控制单元CC’通信。通信连接KV2在此是汽车1与充电站2之间的通过插头3的导销P1建立的连接。该通信连接通过在汽车1侧的控制器PPC和在充电站2侧的控制器PPC’来管理,其中这两个控制器也可被理解为通信控制单元CC或CC’的组成部分。
以传统的方式通过通信连接KV2传送在充电过程范围中所需的基本信息。尤其是传送这种信息,即是否插头被插入到充电柱中(通过插脚P2来确定),从确定数目的充电模式中选出哪种充电模式以及汽车处于哪种状态中。此外,在通信范围中通过连接KV2可传送识别或认证数据、例如相应的密码,它们随后被用于进一步在下面说明的、通过连接KV1相对充电站2来授权或认证汽车1的通信。
在根据本发明方法的一个变型中,也通过通信连接KV2来信令化:插头3在充电站中要被联锁或去联锁。在一个实施形式中,这种信息例如可通过在信令化的汽车状态“准备充电”(英文:ready for charging)和“充电中”(英文:charging)之间的转换来实现。在上述标准IEC61851,第一部分,附录A中,相应的汽车状态已经通过通信连接KV2传输。这些状态除了状态“准备充电”和“充电中”还包括状态“未连接”,该状态表示,插头没有与充电站连接。状态“准备充电”在此代表一种状态,其中可对电动汽车的蓄电池充电,但是充电过程还未开始。状态“充电中”代表电动汽车的蓄电池的正进行的充电过程。状态“未连接”涉及一种状态,其中,电动汽车未与充电站连接。涉及这三种状态的信息传送在此通过脉宽调制来实现,其中通过脉宽调制信号的正半波上的相应电压水平将所述三种状态从汽车传达到充电站。此外,通过脉宽将关于由充电站提供来用于充电蓄电池的功率的信息从充电站传送到汽车。上述三种状态也被定义在已经被采纳的、用于在汽车与充电站之间通信的标准SEA J1772中并且在该标准的范围中也用于充电电缆的插头在充电站中的联锁或去联锁的信令化。
在一个借助状态“准备充电”及“充电中”的、用于联锁或去联锁的信令的优选变型中由此来信令化插头的联锁:即从状态“准备充电”转换到状态“充电中”,接着充电站联锁插座中的插头。在此,去联锁以相反的方式由此被信令化:即从状态“充电中”转换到状态“准备充电”中,接着充电站去联锁插头。在此也可考虑联锁或去联锁插头的信令的其它变型,例如也可通过连接KV2传输一个用于联锁或去联锁的单独的专门控制信号。
在图3的实施例中,联锁或去联锁插头的信令也可通过进一步示出的通信连接KV1来实现。该通信连接是通信控制单元CC和CC’之间的、比连接KV2更高价值的通信连接。连接KV1例如可以是通过在充电电缆中的必要时也导电的线路的PLC-通信(PLC=Power Line Communication:电力线通信)。同样存在可能性:即,一个与充电电缆分开的通信信道、例如(尤其是通过WLAN或蓝牙的)无线电传输被用于数据交换。通过通信连接KV1尤其是实现了汽车1经充电站2的认证,其中为此也可使用通过通信连接KV2传输的认证数据。通过通信连接KV1必要时也交换用于特定的充电过程的进一步信息,尤其是充电特征、蓄电池状态和其它控制参数。在本发明的范围内,必要时也可使用通信连接KV1用于为此对充电站以适当的方式信令化插头的联锁或去联锁。
用于联锁或去联锁插头的信令的传送可耦合不同的、在汽车中实施的动作。例如该信令可耦合到汽车的中央联锁装置,使得在启动或结束驾驶时,插头的去联锁或联锁也被信令化。同样存在可能性:即,去联锁或联锁由汽车用户明确地通过汽车中的开关发起,所述开关与用于联锁或去联锁汽车油箱盖的开关类似。通常,用于联锁或去联锁插头的信令可与用于充电过程的信令耦合地、例如与用于开始及结束充电过程的信令或与用于插头3的插头接触的电压施加或电压断开的信令耦合地传送。同样也可与涉及充电过程的信令分开地来传输用于联锁或去联锁的信令。
刚才说明的根据本发明的方法具有优点:即,插头在充电站中的联锁或去联锁现在可远离汽车地被引起。因此,汽车驾驶员单独地在充电站被授权以使得例如通过Pin代码触发插头的联锁或去联锁,不再是必需的。

Claims (17)

1.用于在电动汽车(1)与用于对该电动汽车(1)的至少一个蓄能器(1a)充电的充电站(2)之间通信的方法,其中,该电动汽车(1)在充电过程中通过在与该电动汽车(1)连接的充电电缆(4)的端子(3)与该充电站(2)的端子(5)之间可联锁的机械耦合连接到充电站(2)上,以便通过该充电电缆(4)从充电站(2)对所述至少一个蓄能器(1a)输入充电电流,其中在充电过程范围中基于电动汽车(1)与充电站(2)之间的通信来传输信息,
其特征在于,
传输的信息包括用于联锁或者联锁和去联锁机械耦合的、从电动汽车(1)传送到充电站(2)的信令,其中通过该信令在充电站中触发充电电缆(4)的端子(3)与充电站(2)的端子(5)之间的机械耦合的联锁或者联锁和去联锁。
2.根据权利要求1所述的方法,其特征在于,用于联锁或者联锁和去联锁机械耦合的信令与涉及该电动汽车(1)的至少一个蓄能器(1a)的充电过程和/或充电状态的信令耦合。
3.根据权利要求1所述的方法,其特征在于,用于联锁或者联锁和去联锁机械耦合的信令与用于开始和/或结束充电过程和/或用于通过充电站(2)在充电电缆(4)上施加和/或断开电压的信令耦合。
4.根据权利要求1或2所述的方法,其特征在于,用于联锁或者联锁和去联锁机械耦合的信令被与涉及所述电动汽车(1)的至少一个蓄能器(1a)的充电过程和/或充电状态的信令去耦。
5.根据权利要求1或2所述的方法,其特征在于,下述通信连接(KV1,KV2)中的一个或多个被用于电动汽车(1)与充电站(2)之间的通信(K),其中,通过下述通信连接(KV1,KV2)中的至少一个传送用于联锁或者联锁和去联锁机械耦合的信令:
- 通过充电电缆的一个或多个导电线路(L1,L2,L3)的PLC-通信连接(KV1);
- 充电电缆中的与所述导电线路分开的控制连接(KV2);
- 与充电电缆分开的通信连接(KV1)。
6.根据权利要求5所述的方法,其特征在于,所述通信连接(KV1)是无线通信连接。
7.根据权利要求5所述的方法,其特征在于,通过PLC-通信连接(KV1)和/或与充电电缆分开的通信连接(KV1)的信息传输基于分组地实现和/或通过在充电电缆(5)中的控制连接(KV2)的信息传输借助于脉宽调制和/或幅度调制来实现。
8.根据权利要求5所述的方法,其特征在于,该充电站(2)通过控制连接(KV2)显示电动汽车(1)的多个状态,其中这些状态包括第一状态,该第一状态显示,电动汽车(1)准备好对其至少一个蓄能器(1a)充电,以及包括第二状态,该第二状态显示,电动汽车(1)的所述至少一个蓄能器(1a)通过充电电缆(4)被充电,其中第一与第二状态之间的转换表示信令,通过该信令触发在充电电缆(4)的端子(3)与充电站(2)的端子(5)之间机械耦合的联锁,及其中从第二状态到第一状态的转换表示信令,通过该信令触发充电电缆(4)的端子(3)与充电站(2)的端子(5)之间机械耦合的去联锁。
9.根据权利要求1或2所述的方法,其特征在于,在电动汽车(1)与充电站(2)之间通信的范围中进行电动汽车(1)相对充电站(2)的认证,其中,用于联锁或者联锁和去联锁机械耦合的信令仅在成功认证时被从电动汽车(1)传送到充电站(2)。
10.根据权利要求9所述的方法,其特征在于,用于进行认证的认证数据通过在充电电缆中的控制连接(KV2)来传输并且接着通过充电电缆(4)中的PLC-通信连接(KV1)和/或与充电电缆分开的通信连接进行该认证。
11.根据权利要求1或2所述的方法,其特征在于,作为对操作电动汽车(1)的中央联锁装置的反应,传送用于联锁或者联锁和去联锁机械耦合的信令。
12.根据权利要求1或2所述的方法,其特征在于,作为对操作电动汽车(1)中的开关的反应,传送用于联锁或者联锁和去联锁机械耦合的信令。
13.用于在电动汽车(1)与用于对该电动汽车(1)的至少一个蓄能器(1a)充电的充电站(2)之间通信的系统,其中,该电动汽车(1)在充电过程中通过在与该电动汽车(1)连接的充电电缆(4)的端子(3)与该充电站(2)的端子(5)之间的可联锁的机械耦合连接到充电站(2),以便通过该充电电缆(4)从充电站(2)为所述至少一个蓄能器(1a)输入充电电流,其中,该系统包括用于该电动汽车的第一通信控制单元(CC)和用于该充电站的第二通信控制单元(CC’),其中,通过第一和第二通信控制单元(CC,CC’)在系统工作中在充电过程范围中基于在电动汽车(1)与充电站(2)之间的通信来传输信息,
其特征在于,
所述第一和第二通信控制单元(CC,CC’)被构造为使得传输的信息包括通过第一通信控制单元产生的、用于联锁或者联锁和去联锁机械耦合的信令,其中通过该信令由第二通信控制单元触发在充电电缆(4)的端子(3)与充电站(2)的端子(5)之间机械耦合的联锁或者联锁和去联锁。
14.根据权利要求13所述的系统,其特征在于,该系统被构造为使得能借助该系统执行根据权利要求2至12中一项所述的方法。
15.用于在根据权利要求1至12中一项的方法中使用的电动汽车,具有至少一个蓄能器(1a),其中,该电动汽车(1)在充电过程中能通过在与该电动汽车(1)连接的充电电缆(4)的端子(3)与充电站(2)的端子(5)之间的可联锁的机械耦合连接到用于对所述至少一个蓄能器(1a)充电的充电站(2)上,以便通过该充电电缆(4)从充电站(2)为所述至少一个蓄能器(1a)输入充电电流,其中,在充电过程范围中基于电动汽车(1)与充电站(2)之间的通信能从电动汽车(1)的通信控制单元(CC)将信息传输给充电站(2),其特征在于,
该通信控制单元(CC)被构造为使得它能发送预定的、仅设置用于联锁或者联锁和去联锁机械耦合的信令到充电站(2),以便在充电站(2)中触发在充电电缆(4)的端子(3)与充电站(2)的端子(5)之间机械耦合的联锁或者联锁和去联锁。
16.根据权利要求15所述的电动汽车,其特征在于,能在操作电动汽车(1)的中央联锁装置和/或电动汽车(1)中的开关时通过通信控制单元(CC)发送该预定的信令。
17.用于应用在根据权利要求1至12中一项所述的方法中的充电站,用于为电动汽车(1)的至少一个蓄能器(1a)充电,其中,该电动汽车(1)在充电过程中通过在与该电动汽车(1)连接的充电电缆(4)的端子(3)与充电站(2)上的端子(5)之间的可联锁的机械耦合连接到充电站(2)上,以便通过该充电电缆(4)从充电站(2)为所述至少一个蓄能器(1a)输入充电电流,其中,该充电站(2)包括通信控制单元(CC’),在充电过程范围中基于电动汽车(1)与充电站(2)之间的通信能将信息传输给该通信控制单元,其特征在于,
该通信控制单元(CC’)被构造为使得它在接收预定的、从电动汽车(1)传送到充电站(2)的信令时触发在充电电缆(4)的端子(3)与充电站(2)的端子(5)之间机械耦合的联锁或者联锁和去联锁。
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