CN115135919A - 用于给车辆填料的方法 - Google Patents
用于给车辆填料的方法 Download PDFInfo
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- CN115135919A CN115135919A CN202080096881.5A CN202080096881A CN115135919A CN 115135919 A CN115135919 A CN 115135919A CN 202080096881 A CN202080096881 A CN 202080096881A CN 115135919 A CN115135919 A CN 115135919A
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- 238000000034 method Methods 0.000 title claims abstract description 65
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 88
- 239000001257 hydrogen Substances 0.000 claims abstract description 88
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 238000001816 cooling Methods 0.000 claims abstract description 72
- 239000000446 fuel Substances 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 239000000945 filler Substances 0.000 abstract description 3
- 238000012856 packing Methods 0.000 description 11
- 238000005429 filling process Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002803 maceration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F17C5/002—Automated filling apparatus
- F17C5/007—Automated filling apparatus for individual gas tanks or containers, e.g. in vehicles
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Abstract
本发明涉及一种用于给车辆(60)或者自主行驶的车辆(60)填料的方法。至少一个接收气态氢气的氢气罐(10)集成在所述车辆(60)中。在执行该方法时,运行以下的方法步骤:所述车辆(60)驶过填料区域(24)。在所述车辆(60)上进行填料步骤(28;78,80,82)的执行。接着,进行所述至少一个氢气罐(10)的罐内容物的第一罐温度检验(30)。在所述至少一个氢气罐(10)的罐内容物的温度(74)超过温度极限值(32)的情况下,将所述车辆(60)转移到冷却区域(36)中。在那里,在冷却阶段之后进行第二罐温度检验(44)。如果所述罐温度(74)位于温度极限值以下,则进行罐压力检验(48)。如果在所述至少一个氢气罐(10)中的罐压力(76)位于罐压力极限值以下,则使所述车辆(60)转移以便在所述填料区域(24)中执行进一步的填料;如果所述罐压力(76)位于所述罐压力极限值的范围内,则进行填料结束(52)。
Description
技术领域
本发明涉及一种以气态氢气给车辆、尤其是自主行驶的车辆填料的方法,其中,该车辆具有至少一个集成在车辆中的氢气罐。此外,本发明涉及该方法的应用,用于给具有燃料电池驱动装置和至少一个氢气罐的自主地或者非自主地行驶的车辆填料。
背景技术
基于如例如氢气这样的气态的燃料的燃料电池系统被认为是未来的汽车化设计,因为它们仅仅将水作为废气放出并且实现快速的填料时间。由于其低的密度,氢气在车辆中的储存是一项挑战。已经建立了不同的罐类型,其中,现今,尤其是在移动的应用中,气态氢气在350巴和700巴之间的压力下的存储是常规。填料过程通过国际通用的标准标准化,例如通过SAE TIR J2601标准化。根据该标准规范,在填料站上的气态氢气被预先冷却到-40℃的温度。氢气在膨胀时会加热。这也是车辆罐或者其罐内容物在填料过程期间的升高的温度的原因。为了防止伴随着碳纤维组织或者金属结构的浸软的过度加热,氢气被预先冷却到-40℃,并且从填料站到罐中的氢气流量被抑制。预先冷却需要每千克氢气至少0.5kWh的能量投入,这大约构成能量含量的1.5%。此外,在填料站的负荷程度小和/或在夏季时,这种能量投入可能超过被填料的氢气的能量量。这导致在加氢站的维护中提高的运行成本,这又导致用于为最终用户供应氢气的提高的生产成本。
发明内容
根据本发明,提出一种用于以气态氢气给车辆或者自主行驶的车辆填料的方法,该方法具有至少一个集成在车辆中的氢气罐,其中,运行以下方法步骤:
a)由车辆驶过填料区域,
b)在车辆上执行填料步骤,
c)执行至少一个氢气罐的罐内容物的第一温度检验,
d)如果至少一个氢气罐的罐内容物的温度超过温度极限值,将车辆转移到冷却区域中,
e)执行第二温度检验,
f)如果至少一个氢气罐的罐内容物的温度低于温度极限值,执行罐压力检验,
g)如果至少一个氢气罐的罐压力低于罐压力极限值,则分支到方法步骤a),
h)如果罐压力达到罐压力极限,则达到填料结束。
通过根据本发明提出的方法,以燃料-所述燃料优选是气态氢气-给燃料电池运行的车辆填料可以在这样的时间段期间进行:在所述时间段期间,车辆通常停放并且不被使用。
在本发明所基于的构思的另一构型中,根据方法步骤b),填料步骤在夜间利用未经预先冷却的气态氢气进行。如果在根据本发明所提出的方法中使用未经预先冷却的氢气,则加氢站可以如下地简化地构型,使得可以节省在制造加氢站时与预先冷却到至-40℃的温度相关联的耗费。
在根据本发明所提出的方法的拓展方案中,为了执行方法步骤b),车辆与机器人形式的填料装置的连接以自动的或者半自动的方式进行。
在根据本发明所提出的方法的拓展方案中,可以以有利的方式根据方法步骤c)进行填料步骤,根据方法步骤a)进行第一罐温度检验,其中,在实现了将至少一个氢气罐的罐内容物加热到第一温度值、例如85℃时,中断填料过程并且车辆转移到冷却区域中。这例如自主地进行,不需要驾驶员或者监督员的干预。
在根据本发明所提出的方法的扩展实施方式中,在冷却区域中,根据方法步骤d)采取对至少一个氢气罐的罐内容物的主动的或者被动的冷却措施。主动冷却措施可以包括利用车辆冷却回路对至少一个氢气罐的冷却。此外,主动冷却措施可以通过激活车辆的内部风扇来产生,或者存在这样的可能性:使车辆与置于车辆外部的风扇、也就是与外部的风扇连接,使得至少一个氢气罐的罐内容物可以显著地被冷却。
在根据本发明所提出的方法的扩展实施方式中,在根据方法步骤d)将至少一个氢气罐的罐内容物冷却到例如周围环境温度并且根据方法步骤e)执行了第二罐检验之后,车辆可以再次自主地转移至填料区域,使得可以重新执行根据方法步骤b)的填料步骤。
如果进一步的填料步骤结束,在至少一个氢气罐的罐内容物达到例如85℃的第一温度值时,车辆被转移到冷却区域中,在那里,罐内容物通过主动的或者被动的冷却措施再次经受冷却。在当前的上下文中,例如自然对流或者热传导是被动冷却措施。
在根据本发明所提出的方法中,运行方法步骤a)至e),其中,进行罐压力检验,直到罐压力例如在周围环境温度下位于罐压力极限值的范围中;然后,结束对具有至少一个氢气罐的车辆的填料。
此外,可以在限定的时间段(“超时”)之后或者超过一钟表时间后或者在接收到可立即实施的使用指令时,中断根据本发明所提出的处理方法,即使还没有达到填料结束。
此外,本发明涉及该方法的应用,用于给具有燃料电池驱动装置和至少一个氢气罐的自主行驶的或者非自主行驶的车辆填料,在所述氢气罐中可以存储气态氢气。
通过根据本发明所提出的方法可以以有利的方式实现,对于最终用户而言降低用于气态氢气的生产成本。省去在加氢站处对气态氢气的预先冷却,由此,降低对于这类加氢站而言必需的投资成本和运行成本。这导致对于最终消费者而言用于气态氢气的成本进一步地降低。通过根据本发明所提出的解决方案,可以提高燃料电池运行的车辆的有效距离。通过使用根据本发明所提出的方法,即可能的是,当第一次达到例如875巴的最大罐压力时,不必结束对燃料电池运行的车辆的填料。该压力在85℃的温度下相应于在20℃时的700巴的名义压力。该过压在包含预先冷却的填料过程中是允许的,这意味着,罐是针对该压力设计和交付使用的。
通过使用根据本发明所提出的方法,例如在第三冷却循环和相应地伴随着的罐内容物冷却之后,罐压力为大约700巴。如果紧接着另一循环,则罐压力可以从已达到的700巴又提高到例如875巴-在最大可预期周围环境温度例如为45℃的情况下,这例如在夏季达到。由此,至少一个氢气罐的填充提高(875巴*293K/318K)/700巴=1.15倍,由此,可以有效距离相应地提高约15%。
燃料电池运行车辆的有效距离的进一步的附加提高可能会通过以下方式实现:在上述计算中,可能假定较低的最高周围环境温度为318K、也就是45℃。此外,通过根据本发明所提出的解决方案可以实现,用户不再必须行驶至填料站,这提高了舒适度。此外,可以节省填料站的操作人员并且填料站可以节省空间地设计。
附图说明
根据附图和以下说明更详尽地解释本发明的实施方式。附图示出:
图1.1-1.4示出氢气罐的实施变型,
图2示出根据本发明地提出的方法的流程图,
图3示出在车辆上借助于车辆冷却回路进行的主动冷却措施,
图4示出具有外部风扇的主动冷却措施,和
图5示出在按照根据本发明所提出的方法的填料期间的罐温度变化曲线和罐压力变化曲线。
具体实施方式
在对本发明实施方式的以下说明中,相同的或者类似的元件用相同的附图标记表示,其中,在个别情况下省去对这些元件的重复说明。附图仅仅示意性地示出本发明的内容。
图1.1-1.4示出具有外罩12的氢气罐10的实施变型。外罩12由网结构14产生,该网结构由复合材料16制造。在图1中所示出的氢气罐10可以被气态氢气加载至700巴的压力。在氢气罐10的另一实施变型中,该氢气罐同样地具有外罩12,该外罩由网结构14产生。氢气罐10由聚合物材料18制造,网状结构14由复合材料16制成。图1.1示出具有由金属制成的外壳20和接头21的氢气罐10;图1.3示出具有由金属制成的外壳20和由网结构14形成的外罩12以及接头21的氢气罐10。
图2示出根据本发明提出的用于给车辆填料的方法的流程图。在填料开始22时,车辆到达填料区域24。在那里,车辆与填料装置26连接,对接到该填料装置上并且卡锁。填料装置26尤其是机器人式的自动地或者半自动地运行的装置。在填料区域24中进行过填料准备之后,进行填料步骤28。如果罐内容物由于加热而达到温度极限值32、例如85℃,则中断填料。在持续进行温度检验的范畴中求取温度极限值32。如果至少一个氢气罐10的罐内容物的温度74超过温度极限值32,则填料被中断并且车辆自动地从填料区域24行驶至冷却区域36。在那里,所述至少一个氢气罐10的罐内容物被冷却。
在冷却区域36中,采取38冷却措施。这些冷却措施可以是主动冷却措施40或者被动冷却措施42。一方面,可以使用主动式车辆冷却回路65,另一方面也可以使用外部风扇70用以进行冷却。在至少一个氢气罐10的罐内容物冷却到周围环境温度之后,车辆再次行驶至填料区域24。这可以自动地实现;也可以由驾驶员使车辆运动。再次执行填料步骤28。填料进行进行这样长时间,直到罐内容物的温度达到例如85℃的温度极限值32。然后,再次进行车辆到冷却区域36中的转移,这同样地可以用自主的方法进行。该过程可以多次地执行,直到至少一个氢气罐10被完全填满为止。这通过这样的方式确定,检验:至少一个氢气罐10内的压力是否高于罐压力极限值。
对于至少一个氢气罐10中的压力位于压力极限值范围中的情况,进行到填料结束52的分支并且填料结束;如果罐压力76低于允许的罐压力极限值,则车辆再次转移至填料区域24并且再次填料。在根据本发明所提出的方法中,当第一次达到例如875巴的最大罐压力时,车辆的填料不必强制性地结束。在温度为85℃时的该压力值相应于温度为20℃的情况下的700巴的名义压力。这种过压在具有预冷却的填料过程中是允许的,也就是说,至少一个氢气罐针对该压力设计和交付使用。通过根据本发明所提出的方法,在例如所执行的第三冷却循环(参看根据图6的图示)和相应地实现的冷却之后,罐压力为例如700巴。如果在这之后紧接着第四冷却循环,则在至少一个氢气罐10内的压力又可以提高到875巴,伴随着相应的温度提高。该过程可以多次地重复,直到在最大可预期周围环境温度例如为45℃的情况下875巴占主导。由此,至少一个氢气罐10的填充提高(875巴*293K/318K)/700巴=1.15倍。这伴随着车辆有效距离相应地提高15%。
如果假定较小的最大周围环境温度作为上述计算中所提及的相应于例如45℃的周围环境温度的318K,则车辆有效距离可能附加地进一步提高。
图3示出借助于车辆冷却回路进行的主动冷却措施。
车辆60可以是自主行驶的车辆60,在该车辆中,至少一个待填料的氢气罐10被接收在车辆底部62中。根据图3中的示意性图示的车辆60包括车辆冷却回路65,该车辆冷却回路包括风扇64。如从根据图3的图示中得出,在这里进行主动冷却措施40,其方式是,车辆冷却回路65用以冷却安装在车辆底部62中的至少一个氢气罐10的罐内容物。
替代于根据图3的图示地,图4示出,车辆60同样地在车辆底部62中具有至少一个氢气罐10。该至少一个氢气罐与布置在车辆60以外的外部风扇70连接,该外部风扇可以包括一个或者多个通风叶轮66,使得实现外部冷却,也就是说,在车辆60外部进行主动冷却措施40。
图5示出至少一个氢气罐上的、在时间轴上绘制的罐温度变化曲线和罐压力变化曲线的对照。
如从图5得出,填料过程可以划分为第一填料阶段78、紧接着该第一填料阶段的第二填料阶段80以及第三填料阶段82。在根据图6的图示中,分别在时间轴上绘制氢气流量72、罐温度74以及在氢气罐10的内部占主导的罐压力76。
在引发了填料区域24中的填料之后,在第一填料步骤28期间,由于氢气的膨胀而发生罐内容物的第一温度升高84。这伴随着第一罐压力升高86。在到氢气罐10中的氢气流入结束之后,在冷却区域36内进行第一冷却阶段88。冷却通过采取冷却措施38、例如主动冷却措施40以及被动冷却措施42来进行。除了自然对流之外,被动冷却措施42也可以包括热传导。
在用气态氢气给氢气罐10的填料结束之后,罐温度74下降,这在第一冷却阶段88期间发生。这伴随着罐压力36的降低。罐压力水平102标记在第一填料阶段78期间在至少一个氢气罐10中占主导的罐压力76。
在第一填料阶段78之后紧接着进行第二填料阶段80。进行至少一个氢气罐10的罐内容物的第二温度升高90,这又伴随着第二压力升高92。在第二填料阶段80期间的氢气流量72结束之后,进行第二冷却阶段94,在该第二冷却阶段期间,至少一个氢气罐10的罐内容物被冷却,这通过已经提到的采取冷却措施38进行,可能是主动冷却措施40或者被动冷却措施42。在第二填料阶段80中,在第二填料阶段80期间占主导的罐压力水平104也以虚线描绘。在第一填料阶段78中,罐内容物的温度按照第一温度升高84例如升高到85℃的温度值,而当前罐压力76增大到例如300巴。在通过主动冷却措施40(例如外部风扇)进行的第一冷却阶段88之后,罐内容物被冷却到约25℃并且紧接着进行第二填料阶段80。在该第二填料阶段期间,按照第二温度升高90,至少一个氢气罐10的罐内容物的温度例如又升高到例如85℃,而压力增大到更高水平,即600巴的压力水平上。
在根据在图5中的图示的第三填料阶段82期间,达到压力上限(参看在第三填料阶段82期间的罐压力水平106),整个填料过程结束。车辆60驶离填料站,冷却曲线(参看在第三填料阶段82期间的第三冷却阶段100)明显更平缓地变化。在该时间点,不再使用主动冷却措施40。
通过根据本发明所提出的解决方案,如果第一次达到875巴的最大罐压力,车辆60的填料不结束。在例如85℃的温度下达到的875巴的该压力值相应于在温度为20℃的情况下占主导的700巴的名义压力。这种过压、也就是175巴的Δp在具有预冷却的填料过程中是被允许的,也就是说,氢气罐10针对该压力来设计和交付使用。在使用根据本发明提出的方法的情况下,罐压力在第三冷却阶段100之后、也就是在第三填料阶段82结束之后约为700巴。如果紧接着该第三填料阶段进行第四填料循环,则罐压力又可以提高到875巴的压力水平上,这伴随着相应的温度提高。该过程可以多次地重复,直到在例如45℃的最大可预期周围环境温度下875巴的压力水平占主导为止。因此,罐的填充提高(875巴*293K/318K)/700巴=1.15倍,这伴随着有效距离相应地提高15%。
如果假定能显著地与以上关系中所说明的318K(45℃)有偏差的较小的最大周围环境温度,则可以实现有效距离的附加提高。
本发明不限于这里所说明的实施例和在其中所强调的方面。更确切地说,在由权利要求给出的范围以内,能实现处于本领域惯用手段范畴内的大量改型。
Claims (12)
1.用于以气态氢气给车辆(60)或者自主行驶的车辆填料的方法,所述车辆具有至少一个集成在所述车辆(60)的车辆底部(62)中的氢气罐(10),该方法具有以下方法步骤:
a)由所述车辆(60)驶过填料区域(24),
b)在所述车辆(60)上执行填料步骤(28;78,80,82),
c)执行所述至少一个氢气罐(10)的第一温度检验(30),
d)如果所述至少一个氢气罐(10)的罐内容物的温度(74)超过温度极限值(32),将所述车辆(60)转移到冷却区域(36)中,
e)执行第二温度检验(44),
f)如果所述至少一个氢气罐(10)的罐内容物的温度(74)低于温度极限值(32),执行罐压力检验(48),
g)如果所述至少一个氢气罐(10)的罐压力(76)低于罐压力极限值,则分支到方法步骤a),
h)如果所述罐压力(76)达到所述罐压力极限值,则达到填料结束(52)。
2.根据权利要求1所述的方法,其特征在于,根据方法步骤b),所述填料步骤(28;78,80,82)利用未预先冷却的气态氢气执行。
3.根据权利要求1至2所述的方法,其特征在于,为了执行所述方法步骤b),将机器人式的填料装置(26)自主地或者半自主地连接到所述车辆(60)上。
4.根据权利要求1至3所述的方法,其特征在于,根据方法步骤d),在所述冷却区域(36)中采取(38)对所述至少一个氢气罐(10)的罐内容物的主动冷却措施(40)或者被动冷却措施(42)。
5.根据权利要求4所述的方法,其特征在于,所述主动冷却措施(40)包括利用车辆冷却回路(65)、所述车辆(60)的内部风扇(68)或者利用设置在所述车辆(60)外部的风扇(70)对所述至少一个氢气罐(10)进行冷却。
6.根据权利要求4所述的方法,其特征在于,所述被动冷却措施(42)包括通过自然对流和/或热传导使所述至少一个氢气罐(10)进行排热。
7.根据权利要求1至5所述的方法,其特征在于,在根据方法步骤d)将所述至少一个氢气罐(10)的罐内容物冷却到周围环境温度并且根据方法步骤e)执行了第二罐温度检验(44)之后,所述车辆(60)再次或者自主地行驶至所述填料区域(24)或者主动地被驾驶到那里并且重新执行根据方法步骤b)的填料步骤。
8.根据权利要求1至5中任一项所述的方法,其特征在于,在执行了进一步的填料步骤(28;78,80,82)之后,在达到所述至少一个氢气罐(10)的罐内容物的例如85℃的第一温度值时,所述车辆(60)转移到所述冷却区域(36)中。
9.根据权利要求1至8所述的方法,其特征在于,在进行罐压力检验(48)期间执行所述方法步骤a)至e)。
10.根据权利要求9所述的方法,其特征在于,在罐压力(76)低于罐压力极限值时进行进一步的填料步骤(28;78,80,82),或者在达到罐压力极限值时结束所述填料。
11.根据权利要求1至10中任一项所述的方法,其特征在于,在限定的时间段之后(“超时”),或者超过一钟表时间后或者在接收到能立即实施的使用指令时,中断方法步骤a)至h),即使还未达到方法步骤h)。
12.根据以上权利要求中任一项所述的方法的应用,用于给自主地或者非自主地行驶的车辆(60)填料,所述车辆具有燃料电池驱动装置和至少一个能以气态氢气填充的氢气罐(10)。
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KR101861700B1 (ko) * | 2016-10-14 | 2018-05-28 | 엘지전자 주식회사 | 차량에 구비된 차량 제어 장치 및 차량의 제어방법 |
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