CN113165549A - 用于运行电能存储器的方法 - Google Patents
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Abstract
本发明涉及用于运行电能存储器的方法,所述电能存储器包括用于存储电能的存储单元和控制单元,其中所述控制单元被设立用于检测所述电能存储器的状态参量,其中由所述控制单元所检测的状态参量被传输到在所述电能存储器之外的计算单元,并且其中基于由所述计算单元所提供的运行参数来运行所述电能存储器。
Description
背景技术
电能存储器、例如在电动车辆中所使用的电池通常包括存储单元和控制单元,该控制单元也称为电池管理系统(BMS)。为了运行电池,通常需要关于各种各样的运行参数的知识或至少假设。例如,电池内阻形成诸如快速充电策略或确定电池充电状态那样的各种各样运行情况的输入量。
从市场上已知用于运行电能存储器的方法,其中由BMS估计诸如电池内电阻那样的运行参数。为此,BMS通常从以下出发:该电池表现得像存在范围广泛的实验室研究那样的比较电池并且相应地估计运行参数。为此,在生产时通常给BMS输入数据,其中对数据的更新或个性化不针对特定的电池设置。如果由BMS对运行参数的估计包括耗费的算法,则为此需要在BMS之内的相应计算力。
发明内容
而根据本发明的用于运行电能存储器的方法具有以下优点:由控制单元检测的状态参量被传输到电能存储器之外的计算单元并且基于由计算单元提供的运行参数来运行电能存储器,其中该电能存储器包括用于存储电能的存储单元和控制单元,其中该控制单元被设立用于检测电能存储器的状态参量。由计算单元提供运行参数尤其提供以下优点:电能存储器的控制单元必须提供更小的计算力,因此例如可以在控制单元中使用相较于现有技术更便宜的微控制器。
有利的是,利用由控制单元检测的状态参量来确定由计算单元提供的运行参数。换言之,运行参数的确定因此可以有利地从控制单元转移给计算单元。
有利的是,利用模型来确定运行参数,其中所述模型适合于根据电能存储器的所检测的状态参量来确定电能存储器的估计状态参量并且基于估计状态参量来确定运行参数。在此,状态参量尤其理解成可以借助于合适的传感装置在电能存储器中或处检测到的这样的物理量,诸如温度、电流、电压或电荷。估计状态参量是同样描述电能存储器的状态的这样的物理量,但是不是借助传感装置直接在电能存储器处检测到的,而是基于所检测的状态参量来估计的。运行参数尤其是用作运行电能存储器的输入量的物理量,例如电能存储器的内阻。在一种有利的设计方案中,运行参数本身是估计状态参量。
有利的是,借助神经网络确定由计算单元所提供的运行参数。因此,尤其可以以高精度确定运行参数或估计状态参量并且在此有利地充分利用通常由计算单元所提供的计算力,该计算单元例如可以是云。
有利的是,电能存储器处于车辆中并且计算单元和云之间的连接通过无线通信模块实现。无线通信模块在此尤其可以是调制解调器、例如GSM调制解调器。
有利的是,控制单元存储由云所提供的运行参数的值并且将其一直用于运行电能存储器,直至来自云的运行参数的更新值可用。特别是当用于运行电能存储器的运行参数是估计状态参量或直接从估计状态参量导出的参量时,所述运行参数通常以缓慢的时间刻度进行改变。因此,在短的时间刻度内不需要更新用于运行电能存储器的运行参数。因此,通过存储当前使用的运行参数可以有利地减小无线通信模块与云之间的数据流量。特别有利的是,通过该方式也可以保证相对于无线通信模块与云之间的连接中断的提高的鲁棒性。
有利的是一种设备,其被设立用于执行根据本发明的方法的每个步骤。有利的还有一种计算机程序,其被设立成,当该计算机程序在计算单元上运行时执行根据本发明的方法的每个步骤。
有利的还有一种包括根据本发明的设备的电能存储器以及一种包括根据本发明的设备的车辆。
附图说明
随后更详细介绍本发明的实施例。在此:
图1示出具有电能存储器的车辆的示意图;
图2示出根据本发明的方法的实施例的流程的示意图。
具体实施方式
图1示出车辆(10)的示意图,其包括电能存储器(12)、无线通信模块(18)以及电动机(17)。电能存储器(12)提供用于运行电动机(17)的电能。电能存储器(12)提供信号线与无线通信模块(18)连接。电能存储器(12)包括存储单元(14)以及控制单元(16),其中该控制单元尤其可以是电池管理系统(BMS)。无线通信模块(18)被设立用于建立与云(20)的连接,该云表示一种计算单元。在一种替代的设计方案中,电能存储器(12)和无线通信模块(18)之间的通信不直接进行,而是经由图1中未示出的车辆控制单元、例如Vehicle-Control-Unit(VCU)进行。
图2示出根据本发明的方法的实施例的示意性流程。该实施例开始于步骤100。随后是步骤110。
在步骤110中,控制单元(16)检测电能存储器(12)的状态参量。所检测的状态参量尤其可以是温度、电压、电流和/或电荷。紧接着步骤110是步骤120。
在步骤120中,在步骤110中所检测的状态参量借助无线通信模块(18)传输到云(20)。紧接着步骤120是步骤130。
在步骤130中,借助无线通信模块(18)接收运行参数,其中运行参数基于在步骤110中检测的并且在步骤120中传输的状态参量来确定。紧接着步骤130是步骤140。
在步骤140中,利用在步骤130中接收的运行参数来运行电能存储器(12)。紧接着步骤140重新是步骤100,其中在步骤140和重新执行步骤100之间可以设置可预给定时长的延迟。
在步骤120和步骤130之间可以优选地进行步骤125。在步骤125中,由云(20)基于所传输的状态参量来估计运行参数。为此可能的是,云(20)将步骤120中所传输的状态参量用作模型的输入量,该模型适合于根据所测量的状态参量来估计电能存储器的估计状态参量,即基于所检测的状态参量来导出电能存储器的物理总状态。基于估计状态参量,可以利用其他模型或例如也利用神经网络来确定运行参数,该运行参数尤其也可以是估计状态参量。运行参数在此可以是进入到电能存储器(12)的运行中的所有物理量。
例如,运行参数可以是电能存储器(12)的内阻。
通过根据本发明的方法的所介绍的实施例可以更有效地运行电能存储器(12),因为可以获得比能够由控制单元(16)所估计的更准确的关于用于运行电能存储器(12)所需的运行参数的知识。根据本发明的方法的所介绍的实施例例如可以用于优化车辆(10)的利废、快速充电过程、可达范围策略或电能存储器(12)的剩余寿命的预测。
Claims (11)
1.用于运行电能存储器(12)的方法,所述电能存储器(12)包括用于存储电能的存储单元(14)和控制单元(16),其中所述控制单元(16)被设立用于检测所述电能存储器(12)的状态参量,其特征在于,由所述控制单元(16)所检测的状态参量被传输到在所述电能存储器(12)之外的计算单元,并且基于由所述计算单元所提供的运行参数来运行所述电能存储器(12)。
2.根据权利要求1所述的方法,其特征在于,利用由所述控制单元(16)所检测的状态参量来确定由所述计算单元所提供的运行参数。
3.根据权利要求2所述的方法,其特征在于,利用模型来确定所述运行参数,其中所述模型适合于根据所述电能存储器(12)的所检测的状态参量来估计所述电能存储器(12)的估计状态参量并且基于所述估计状态参量来确定所述运行参数。
4.根据权利要求2或3所述的方法,其特征在于,借助神经网络来确定由所述计算单元所提供的运行参数。
5.根据上述权利要求之一所述的方法,其特征在于,所述计算单元是云(20)。
6.根据权利要求5所述的方法,其特征在于,所述电能存储器(12)处于车辆(10)中并且所述控制单元(16)与所述云(20)之间的连接通过无线通信模块(18)实现。
7.根据权利要求6所述的方法,其特征在于,所述控制单元(16)存储由所述云(20)提供的运行参数的值并且将其一直用于运行所述电能存储器(12),直至来自所述云(20)的运行参数的更新值可用。
8.一种设备,其被设立用于执行根据权利要求1至7之一所述的方法的每个步骤。
9.一种计算机程序,其被设立成,当所述计算机程序在计算单元上运行时,执行根据权利要求1至7之一所述的方法的每个步骤。
10.一种电能存储器(12),其包括根据权利要求8所述的设备。
11.一种车辆,其包括根据权利要求8所述的设备。
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CN106671785B (zh) * | 2016-10-12 | 2023-03-28 | 西安科技大学 | 一种电动汽车电池管理系统及方法 |
JP6414580B2 (ja) * | 2016-10-14 | 2018-10-31 | トヨタ自動車株式会社 | リチウムイオン二次電池の容量回復システム |
JP6551424B2 (ja) * | 2017-01-10 | 2019-07-31 | トヨタ自動車株式会社 | 充電制御装置及び充電制御方法 |
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2018
- 2018-12-05 DE DE102018220981.2A patent/DE102018220981A1/de active Pending
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2019
- 2019-12-03 WO PCT/EP2019/083444 patent/WO2020115027A1/de unknown
- 2019-12-03 EP EP19813816.6A patent/EP3891011B1/de active Active
- 2019-12-03 US US17/311,438 patent/US11970076B2/en active Active
- 2019-12-03 CN CN201980080499.2A patent/CN113165549A/zh active Pending
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CN104898063A (zh) * | 2014-03-05 | 2015-09-09 | 福特全球技术公司 | 车辆、系统和方法 |
CN106471698A (zh) * | 2014-06-27 | 2017-03-01 | 大陆汽车有限公司 | 用于调节电能存储器的充电状态的装置和方法 |
DE102017103348A1 (de) * | 2017-02-17 | 2018-08-23 | Batterieingenieure Gmbh | Betriebsstrategie-Managementsystem und Verfahren zum Betreiben eines Elektrischen Energiespeichers |
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US20220024343A1 (en) | 2022-01-27 |
WO2020115027A1 (de) | 2020-06-11 |
DE102018220981A1 (de) | 2020-06-10 |
EP3891011A1 (de) | 2021-10-13 |
US11970076B2 (en) | 2024-04-30 |
EP3891011B1 (de) | 2023-09-27 |
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