CN109383310A - 用于给电动车辆充电的方法和设备 - Google Patents
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- 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]
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Abstract
本发明涉及用于给电动车辆(22)充电的方法(10),其特征在于如下特征:‑计算中心(20)借助于第一数据连接与充电站(21)连接并且借助于第二数据连接与电动车辆(22)连接(11);并且‑所述电动车辆(22)由所述充电站(21)来充电(12),而所述充电站(21)和所述电动车辆(22)的充电控制(23)通过所述计算中心(20)来实现。
Description
技术领域
本发明涉及一种用于给电动车辆充电的方法。本发明还涉及一种相对应的设备、一种相对应的计算机程序以及一种相对应的存储介质。
背景技术
在电气技术中,如下任意静止的设备或电气设施都被称作充电站,所述静止的设备或电气设施用于通过简单的调整或插入来将能量输送给蓄电池运行的移动设备、机器或机动车,而不必取出蓄能器、例如电动车辆的牵引电池组。用于电动车辆的充电站口头上也被称作“充电加油站”,并且可以包括多个充电接点,所述充电接点根据结构形式被表征为“充电桩”。在这种情况下,电池组管理系统大多处在电动车辆中,所述电池组管理系统为了充电控制的目的而与充电桩进行通信,以便对电流强度进行适配或者在达到容量极限时结束该过程。
DE 102014221211 A1涉及一种用于在充电站上给具有电驱动装置的电动车辆的牵引电池组充电的方法,其中在通信阶段期间,所提及的在电动车辆的充电设备与充电站之间的通信通过相导体并且通过中性导体来进行,并且在紧接着的充电阶段,充电电流流经相导体和中性导体。
发明内容
本发明提供了按照独立权利要求所述的一种用于给电动车辆充电的方法、一种相对应的设备、一种相对应的计算机程序以及一种相对应的机器可读的存储介质。
在这种情况下,所提出的解决方案基于如下认识:电动车辆的用于充电控制的软件功能不允许模块化系统结构。因此,随后提出的方案的基本思想在于:通过充电控制和充电通信的转移将现有的系统边界移动到作为象征的“云”中。
该解决方案的优点在于软件功能的可能的分散,所述软件功能为此例如通过模式(Modes)来彼此进行通信。在此,每个功能自己本身都可以解释需要什么用于相对应的模式变换。为此,用于在云中控制系统的功能预先给定目标模式。用于实施所要求的模式变换的功能和对模式变换的反馈在相对应的车辆控制设备(vehicle control unit;VCU)上进行。在云中的功能比如需要对在VCU上运行的功能的模式变换;在VCU上的功能对当前的状态进行反馈。在VCU上的每个负责子系统的功能都负责该实施方案本身,使得不再由功能进行集中控制。
所提出的方案还认识到:当前有效的ISO/DIN标准描述了具体的充电流程和故障处理。因此,适当的软件解决方案应该始终遵循所有ISO/DIN要求。然而,ISO/DIN标准还处在处理状态下。不断增加新的要求,并且现有的要求已经被改变。以这种方式和方法,ISO/DIN委员会对从原始设备制造商(original equipment manufacturers,OEMs)和充电桩的制造商方面的检查结果做出反应。对于已经在使用的车辆来说,这造成进入修理厂,用来利用相对应地适配的软件对VCU重新编程(“刷新(Flashen)”)。
因此,本发明的一个重要方面在于:用于控制充电过程的软件处在云中。在这种情况下,调节留在VCU上并且还形成在VCU与电动车辆的高压系统之间的接口。因此,在云中的充电流程控制和故障处理可以与当前有效的ISO/DIN标准不断地适配。所有车辆都使用相同的当前状况。不需要进入修理厂。
该解决方案的另一优点在于用于载波频率传输(powerline communication(电力线通信),PLC)的微芯片和在用于充电控制的VCU上的相对应的通信协议堆(communicationprotocol stack,ComStack)的多余以及所造成的成本节约。因此能够实现对有关的模块的简化还考虑如下情况:市场上常见的PLC芯片只是有条件地适合于机动车技术(汽车)应用。
另一方面是使用于整个车队的充电控制、充电过程、充电流程和电池组的数据集中可支配。这例如使负责的车队管理或车主设法取得关于一个或多个车辆的清楚并且简单的概况。关于对一个或多个车辆的高压系统的充电和一个或多个车辆的高压系统的当前状态(例如充电状态、充电活动或充电过程的其余时间)的全部数据都持久并且当前存储在云中,并且因此可以例如借助于商业上常见的智能电话简单地被调用。以这种方式,比如已经在哪个位置、在哪个时间、用怎样的能量并且以怎样的价格进行充电过程或当前在哪个位置、在哪个时间、用怎样的能量并且以怎样的价格进行充电过程变得透明。
制造商可以从所收集的数据中获得认识或者对此做出反应。就这点而言,所要考虑的是:目前对在串联环境下的较旧的高压电池组的充电特性还不那么有经验。也许必须对充电特性进行适配。因此,本发明的一个实施方式提供了如下特别的优点:借助于在云之内的简单的干预,可以简单地再调整车辆、车辆模型或整个车队的充电控制以及因此充电特性。在车辆的高压系统之内的严重的系统故障的情况下,也可以经由云完全收回充电许可。
制造商还可以根据这样收集的数据来检查保修要求。通常,为此需要将历史存储器集成到控制设备中。因为根据所提出的方案相对应的数据被存储在云中,所以在控制设备上的附加的历史存储器这里不强制必需。
本发明的一个设计方案提出了如下挑战:常规的充电桩为了标识车辆并且为了开启充电过程而在充电过程开始之前询问被寄存在车辆中的证书。然后借助于证书来确认已经与能量供应企业签订关于购买用来给车辆充电的电力的有效合同。紧接着充电过程,依据证书也核算所购进的能量量。因此,该证书必须在首次充电过程之前被授予车辆并且在软件和硬件技术上予以保护以防攻击。在更换能量供应企业时,该证书还应该被更换,这需要重新进修理厂。
因此,本发明的另一方面是用于验证车辆经由云的充电过程的可能性。为了该目的,证书被寄存在云中,对此在控制设备上的耗费的安全措施与进修理厂来授予证书一样不那么必需。因此,车主可以任意地常常更换供电商并且节约成本。所提出的方法还满足比已知的方案更高的安全标准,因为证书可以在云中在确定的间隔之后自动地被更新。例如可能规定:证书原则上最高有效六个月。
本发明的另一方面是居家(smart home,智能家居)中的范围广泛地并且性能卓越地连接到联网的并且能远程控制的设备上和安装以及能自动化的运行。相应地连接的智能家居系统(Smart-Home-System)识别电动车辆中的高压电池组的当前的能量水平。如果能预见到具有足够的充电状态的电动车辆抵达住宅楼,那么由能量密集型设备等待程序的实施。例如,一直等待洗衣机、烘干机或烤箱的启动,直至电动车辆通过自家的充电桩与自家的电网连接。接着,这些设备从电动车辆的高压电池组获得其电力用来实施所提及的程序,所述电动车辆本身又为了有利的夜间廉价用电而重新被充满电。
对这样的电动车辆的充电控制能完全被映射并且转移到智能电话上。因此,电力客户可以直接干预充电过程。包括可能的电动车辆从公共或外部充电桩的能量购进在内的家政的总能量需求可以通过云来调用。同样,可以限定用来给各个电动车辆充电的最大能量值,所述最大能量值不允许被超过。因此,顾客始终保持成本控制。优选地,作为扩展的防盗保护,可以经由智能电话随时激活或去激活对充电过程的阻断。
本发明的另一方面应付如下情况:在充电桩已经确认与车辆的连接之后,通常进行各种各样的数据的调整与交换。尤其需要该过程来比如依据证书和辅助的ISO/DIN标准来检查车辆是否能与充电桩兼容。同时,充电桩将其最大充电电流传送给车辆。相反,车辆将对于充电所需的预充电电压和充电电压传送给充电桩。
本发明的一个优选的变型方案能够实现对该充电过程的更快的启动。为此,在启动充电桩时已经在充电桩与车辆之间交换用于启动充电过程的所有相关数据。因此,如果当前的充电桩例如可能提供的电流过小或不能提供所需的电压,那么车辆也可以请求借助于其它充电桩来充电。充电桩还可以事先自动地被预留。在充电过程结束之后,车辆可以直接开始继续行驶。同样,通过云来在充电过程结束之后交换消息。因此,充电过程在整体上被缩短,因为同时进行启动或驶出以及在充电桩与云之间交换所有相关数据(握手)。
云作为防火墙的可设想的功能还提供了扩展的安全性。本发明的一个在该方面相关的方面在于:车辆没有与充电桩直接连接;因此,大大降低了从外部攻击的可能性。如果充电桩感染恶意软件,那么该恶意软件在与车辆直接连接的情况下会转移到控制设备上并且造成损害。然而,因为充电桩在当前情况下只是通过云间接地与车辆进行通信,所以可以阻断恶意软件蔓延到车辆上。云可以识别感染恶意软件的充电桩,这直接通知充电桩的运营商并且因此例如执行或请求切断涉及的充电桩。
借助于攻击识别系统(intrusion detection system,IDS)或者甚至攻击预防系统(intrusion prevention system,IPS)来识别通信网络中的异常。因此,可以揭穿黑客攻击。针对IDS或IPS的应用,应该限定适当的规则,以便比如规定期望对哪个消息有怎样的应答或怎样的系统表现。本发明的一个相对应的实施方式提供了如下优点:可以在云内实现对规则手册的维护或扩展。为此也不需要控制设备随着软件变化的定期的“刷新”,所述刷新会与进修理厂相关联。
通过在从属权利要求中提及的措施能够实现在独立权利要求中说明的基本思想的有利的扩展方案和改进。因此,为了实现高网络覆盖,比如可以通过现有的移动无线电网设置在电动车辆与云中的计算中心之间的数据连接。
附图说明
本发明的实施例在附图中示出并且在随后的描述中进一步予以阐述。其中:
图1示出了按照第一实施方式的方法的流程图;
图2示出了用于对电动汽车进行感应式充电的方法的应用;
图3示出了用于对电动汽车进行导电式充电的方法的应用;
图4示意性地示出了按照第二实施方式的控制设备。
具体实施方式
图1图解说明了所提出的方法(10)的基本方面:计算中心借助于第一数据连接与充电站连接并且借助于第二数据连接与电动车辆连接(过程11)。电动车辆现在由充电站来充电(过程12),而对充电站和电动车辆的共同的充电控制分散地好像“经由云”来实现。
图2依据第一应用情况阐明了该方法:第一数据连接这里是通过无线局域网(wireless local area network,WLAN;24)和充电站(21)的内部以太网(29)来建立的,所述第一数据连接的传输层安全(transport layer security,TLS;26)由计算中心(20)和充电站(21)共同保证。
同时,图3阐明了第二应用情况。第一数据连接在此也从充电站(21)方面通过以太网(29)以有线方式建立,所述充电站在当前情况下通过充电线缆与电动车辆(22)连接。
两种情况都基于相同的模块化系统结构,所述相同的模块化系统结构能够通过电动车辆(22)与计算中心(20)的根据可用性和信号质量选择性地(32)通过WLAN或移动无线电网(25)建立的第二数据连接来实现。在应用层,该连接从计算中心(20)和电动车辆(22)方面通过适当的攻击识别系统(28)来保护。因此,计算中心(20)能够在充电(过程12——图1)期间连续地在电动车辆(22)与充电站(21)之间中继所需的通信(vehicle to grid(车辆到电网),V2G;27)。在当前示例中,在该交换层上使用因特网协议的第6版本(Internetprotocol version 6,IPv6)。
在此,通过适当的VCU微控制器(30)实现从电动车辆(22)方面的充电控制(23),所述VCU微控制器(30)通过简化的介质无关接口(reduced media-independent interface,RMII;31)连接到车辆侧的以太网(29)上。
该方法(10)例如可以以软件或硬件或者以软件和硬件的混合形式例如在主机计算机(40)或其它服务器中实现,如图4的示意图阐明的那样。
Claims (10)
1.用于给电动车辆(22)充电的方法(10),
其特征在于如下特征:
- 计算中心(20)借助于第一数据连接与充电站(21)连接并且借助于第二数据连接与电动车辆(22)连接(11);并且
- 所述电动车辆(22)由所述充电站(21)来充电(12),而所述充电站(21)和所述电动车辆(22)的充电控制(23)通过所述计算中心(20)来实现。
2.根据权利要求1所述的方法(10),
其特征在于如下特征中的至少一个特征:
- 所述第二数据连接选择性地(32)通过无线局域网(24)或移动无线电网(25)来建立。
3.根据权利要求1或2所述的方法(10),
其特征在于如下特征:
- 所述计算中心(20)和所述充电站(21)确保所述第一数据连接的传输层安全(26)。
4.根据权利要求1至3之一所述的方法(10),
其特征在于如下特征:
- 在充电(12)期间,计算中心(20)中继在所述充电站(21)与所述电动车辆(22)之间的通信(27),并且
- 按照IPv6进行所述通信(27)。
5.根据权利要求1至4之一所述的方法(10),
其特征在于如下特征:
- 所述第二数据连接通过攻击识别系统(28)来保护。
6.根据权利要求1至5之一所述的方法(10),
其特征在于如下特征:
- 至少所述第二数据连接通过所述电动车辆(22)的以太网(29)来建立。
7.根据权利要求6所述的方法(10),
其特征在于如下特征:
- 通过微控制器(30)来实现从所述电动车辆(22)方面的充电控制(23),并且
- 简化的介质无关接口(31)将所述微控制器(30)与所述以太网(29)连接。
8.一种计算机程序,所述计算机程序被设立用于实施根据权利要求1至7之一所述的方法(1)。
9.一种机器可读的存储介质,在其上存储有按照权利要求8所述的计算机程序。
10.一种设备(30、40),所述设备被设立用于实施根据权利要求1至7之一所述的方法(10)。
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