CN105774596A - 用于电动车辆的消费者可选择功率限制 - Google Patents
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Abstract
本发明涉及用于电动车辆的消费者可选择功率限制。公开了一种运行车辆中电动马达的系统和方法。可提供用于控制对电动马达的电流供应的马达控制器。所述系统可包括手动输入装置,当使用时,其可将供应至马达的功率限于所选择最大值。
Description
技术领域
本公开大体涉及的领域包括电动车辆驱动系统,以及更确切地涉及在电动车辆驱动系统中的能量消耗。
背景技术
对于那些在燃烧过程中消耗燃料的车辆,通过电能运行的车辆提供了另一种选择。通常,其设有根据需要给电驱动系统供应能量的存储装置。能量需求可来自驱动系统以及也来自需要功率的其它车辆系统。储存装置内在具有有限的容量,且因此,仅仅依靠电功率来运行的能力是有限的。在储存装置必须充电或者以辅助功率系统进行补充之前,此限制将车辆能够行驶的距离约束至一定范围。通常存储装置需要再次充电的时间足够长以使驾驶员预先进行计划,来确保车辆处在合适的充电位置。因此,续驶里程是电动车辆运行中的重要因素。
电动车辆的续航里程能够根据多种因素变化。这些因素可包括:车辆操作者的驾驶习惯、环境和道路状况、来自除了驱动单元之外的车辆系统的需求、存储装置状况,驱动系统的校准和程序设计方式以及其它因素。除了驾驶习惯以及舒适性设置变化,影响续航里程的因素通常超出车辆操作者的控制。
发明内容
若干变型可包括以电力运行的车辆的系统。可提供电动马达且马达控制模块可控制至电动马达的电流供应。可提供手动输入装置,使得当使用时通过马达控制器将供应至马达的电流限制至所选择最大值。所选择最大值可以是选择来使能量存储装置中所存储能量守恒的变量。
其它变型可包括用于延长电动车辆续航里程的系统。可提供在系统电压下运行的马达。马达控制器可通过在系统电压下改变电流来控制对马达的电功率的供应。可提供功率限制选择器,可通过其手动地选择对于供应至马达的最大功率限制。在电动车辆运行期间,马达控制器可通过将电流限制至反映所选择最大功率的最大电流来限制至马达的电力供应。
同样其它变型可包括控制车辆中电动马达的方法。可提供驾驶员界面,通过其可选择对供应至电动马达的电功率的限制。在车辆运行期间,供应到电动马达的电功率可限制至所选择的限制。
根据本发明,其还存在以下技术方案:
1.一种用于以电力运行的车辆的系统,其包括:电动马达;控制从能量存储装置至电动马达的电流供应的马达控制模块;以及手动输入装置,当使用时,其通过所述马达控制模块将供应至所述马达的电流限制至所选择最大值,其中所述所选择最大值能够是选择来使所述能量存储装置中所存储能量守恒的变量。
2.根据技术方案1所述的系统,其进一步包括与所述车辆的加速器踏板相连的控制元件,其中所述所选择最大值独立于所述加速器踏板被使用,且当所述加速器踏板下降超出预先确定阈值时所述所选择最大值被超越。
3.根据技术方案2所述的系统,其中,所述预先确定阈值设定成接近踏板行程的80%。
4.根据技术方案1所述的系统,其进一步包括带有指示器的驾驶员界面,所述指示器显示所述所选择最大值。
5.根据技术方案4所述的系统,其中,所述所选择最大值以千瓦为单位显示出。
6.根据技术方案1所述的系统,其进一步包括能量存储装置;以及能量分配元件,其基于所述能量存储装置的电量状态单独限制供应至所述电动马达的电流。
7.根据技术方案1所述的系统,其中,所述所选择最大值在所述车辆断电时重设至100%。
8.根据技术方案1所述的系统,其中,选择的所选择最大值能够选择成30千瓦或者更高。
9.根据技术方案1所述的系统,其进一步包括能量存储装置;其中所述所选择最大值独立于所述能量存储装置的电量状态。
10.根据技术方案1所述的系统,其中,所述所选择最大值能够以10千瓦的增量进行选择。
11.一种延长电动车辆续航里程的系统,其包括:在系统电压下运行的马达;马达控制器,其通过改变在所述系统电压下的电流来控制至所述马达的电功率供应;功率限制选择器,通过其手动地选择对于供应至所述马达的最大功率;其中在所述电动车辆运行期间,所述马达控制器通过将电流限制至反映所选择最大功率的最大电流来限制至所述马达的功率供应。
12.根据技术方案11所述的系统,其进一步包括与所述车辆的加速器踏板相连的控制元件,在所述加速器踏板下降超过阈值时,其使得超越所选择最大功率。
13.根据技术方案11所述的系统,其中,所述阈值设定成接近踏板行程的80%。
14.根据技术方案11所述的系统,其进一步包括带有指示器的驾驶员界面,所述指示器显示所选择最大值。
15.根据技术方案11所述的系统,其进一步包括能量存储装置;以及能量分配元件,其基于所述能量存储装置的电量状态单独限制供应至所述电动马达的电流。
16.根据技术方案11所述的系,其中,所述所选择最大值在车辆断电时重设至100%。
17.根据技术方案11所述的系统,其进一步包括能量存储装置;其中所述所选择最大值独立于所述能量存储装置的电量状态。
18.一种控制车辆中电动马达的方法,其包括以下步骤:
a.提供驾驶员界面;
b.通过所述驾驶员界面手动选择对供应至所述电动马达的电功率的限制;以及
c.在车辆运行期间将对所述电动马达供应的电功率限制至所选择限制。
19.根据技术方案18所述的方法,其包括当所述车辆的加速器致动超出阈值时,超越所述所选择限制并且补充额外功率的步骤。
20.根据技术方案18所述的方法,其包括当所述车辆断电时自动使所述所选择最大值重设至100%的步骤。
本发明范围内的其它说明性变型将从此文中所提供的详细描述变得显而易见的。应该理解到,虽然公开了本发明范围内的变型,但是详细描述和特定示例仅旨在说明的目的,且并不旨在限制本发明的范围。
附图说明
本发明范围内变型的所选示例将从详细描述和附图变得被更加充分地理解,其中:
图1是根据若干变型的电动车辆的消费者可选择功率限制的简化框图,
图2是根据若干变型的车辆仪表面板的局部图示。
具体实施方式
变型的下列描述在本质上仅仅是说明性的,且并不以任何方式旨在限制本发明的范围、其应用或使用。
在通过一个或更多个电动马达推进或者补充的车辆中,消耗的功率与供应到马达的电流和电压相关。可以千瓦为单位来测量此功率,并且当其消耗时从车辆的能量存储装置释放。功率消耗逐渐地减少车辆剩余的续航里程。为了减少功率消耗的速率,若干变型可包括如图1所示的消费者可选择功率限制器10。功率限制器10可用于限制马达12处消耗的功率,该马达可在所选择的系统电压下运行。可通过管理由能量存储装置15所供应的电流来限制功率。在功率限制器10中,带有功率限制选择器16以及显示指示器18的人机界面(HMI)模块14可用作与车辆操作者的界面。
功率限制选择器16可位于驾驶员可接近的控制面板中,且可使得能够选择待供应至马达12的最大功率限制。对于最大功率选择的选项可以是变化的,且可在单个或多个单元中具有分级,以及可在功率或功率相关的单元中进行识别。如图1中所示,功率限制选择器16允许驾驶员以十千瓦的步长选择功率限制。对于功率约束,可将驾驶员可获得的选项限制至较低阈值和较高限制,高于较低阈值适于车辆运行,以及在较高设计限制处或接近其时用于从能量存储装置15释放功率。例如,此续航里程可包括30千瓦的较低阈值且可包括120千瓦的较高阈值。
显示指示器18可位于车辆仪表面板内用于与其它车辆相关信息一起呈现至驾驶员。此外,参照图2,仪表面板40可包括显示能量存储装置15中剩余电量的指示器42,以及可包括对车辆的剩余续航里程的估计。显示还可指示根据变化状况所估计的最大的和最小的续航里程。如在所图示的示例中示出的,剩余的估计续航里程是62英里,其中估计的最小值是49英里以及估计的最大值是74英里。仪表面板还可包括功率指示器44,其可包括指示当前功率使用状态的球形显示器46。杆根据功率消耗或者再生状态可向上或者向下移动。功率指示器44还可包括功率限制标示48,当驾驶员通过功率限制选择器16选择最大功率限制时,其可在相对应的位置处照亮。当出于球形显示器46的杆到达所选择的限制48时,通过颜色变化或者其它显示机制将标示提供给驾驶员,以警告驾驶员功率需求正处于限制状态。
如图1中所示,功率限制器10可包括控制元件20以激活以及禁用功率限制功能。控制元件20可经编程来在存在预先确定的驾驶状况的情况下禁用功率限制功能,其指示提供功率超出所选择限制。当激活时,车辆驾驶员可通过在功率限制选择器16处选择限制来使用功率限制功能,其传输至HMI模块14并且在显示指示器18处指示。功率限制器例程可在块21处开始和重设,并且可行进至HMI模块14。功率限制器10可包括块22,在此处确定驾驶员是否已经选择低于最小阈值的功率值。如果确定所选值低于最小阈值,则可通过显示指示器18将标示提供给驾驶员,且功率限制器保持在下限阈值处。如果确定所选值未低于最小阈值,则可使用功率限制器10,并且将所选限制传送至能量分配模块24。
能量分配模块24可提供将来自能量存储装置15的功率分配至不同负载的功能,例如马达12,以及诸如加热器和空调的装置。对于分配到马达12的功率,能量分配模块24与马达控制模块26通信,其通过改变电流供应来控制对马达12的功率供应。在功率限制选择器16处选择最大功率限制的情况下,马达控制模块26根据驾驶员的需求控制对马达12的功率供应,以及如由能量分配模块24所分配的,使车辆运行直至设定的最大功率限制。能量分配模块24可经编程以基于能量存储装置15的电量状态来单独限制对电动马达12的电流供应。例如,如果电量状态较低,则所供应的电流可以是有限的。
在驾驶状态应该指示必须超出设定的最大功率限制的情况下,可提供与车辆加速器执行器相连的控制元件。超越控制模块28可接收来自加速器踏板传感器30的输入,其可指示加速器致动至何种程度。在如踏板下降程度所反映出的驾驶员需要高水平功率的情况下,超越控制模块28可传送超出所选择功率限制的期望,并且将额外的功率分配至马达12。例如,踏板下降量超过行程的一定百分比,例如80%,可指示超越所选择的功率限制。在此情况下,可将基于踏板输入直接反映需求的功率量供应至马达12,即使其超出了所选择的功率限制。
变型的下文描述仅仅是视为本发明范围内的部件、元件、动作、产品以及方法的说明,且不以任何方式旨在以特定公开或未明确阐述的内容来限制此范围。除了此文中所明确描述的,部件、元件、动作、产品以及方法可组合或重新布置且仍视为在本发明范围内。
变型1可包括用于以电力运行的车辆的系统。可提供电动马达并且马达控制模块可控制对电动马达的电流供应。可提供手动输入装置,使得当使用时通过马达控制模块将供应至马达的电流限制至所选择最大值。所选择最大值可以是选择来使能量存储装置中所存储能量守恒的变量。
变型2可包括根据变型1所述的系统,且可包括与车辆加速器踏板相连的控制元件,其中所选择最大值以与加速器踏板独立的方式被使用,且当加速器踏板下降超出预先确定的阈值时所选择最大值被超越。
变型3可包括根据变型2所述的系统,其中阈值设定在接近踏板行程的80%处。
变型4可包括根据变型1-3中任一项所述的系统,且其可包括驾驶员界面,所述驾驶员界面带有显示所选择最大值的指示器。
变型5可包括根据变型4所述的系统,其中所选择最大值以千瓦为单位显示出。
变型6可包括根据变型1-5中任一项所述的系统,且可包括能量存储装置。可提供的能量分配元件,其基于能量存储装置中的电量状态单独限制供应至电动马达的电流。
变型7可包括根据变型1-6中任一项所述的系统,其中所选择最大值在车辆断电时重设至100%。
变型8可包括根据变型1-7中任一项所述的系统,其中可选择的所选择最大值是30千瓦或者更高。
变型9可包括根据变型1-8中任一项所述的系统,可包括能量存储装置。所选择最大值可与能量存储装置的电量状态是独立的。
变型10可包括根据变型1-9中任一项所述的系统,其中所选择最大值可以10千瓦的增量来进行选择。
变型11可包括延长电动车辆续航里程的系统。可提供在系统电压下运行的马达。马达控制器可通过改变在系统电压下的电流来控制对马达的电功率供应。可提供功率限制选择器,通过其可手动地选择对于至马达的供应的最大功率限制。在电动车辆运行期间,马达控制器可通过将电流限制至反映所选择最大功率的最大电流来限制至马达的功率供应。
变型12可包括根据变型11所述的系统,且可包括与车辆的加速器踏板相连的控制元件。在加速器踏板下降超过阈值时,控制元件可超越所选择的最大功率。
变型13可包括根据变型12所述的系统,其中阈值设定成接近踏板行程的80%。
变型14可包括根据变型11-13中任一项所述的系统,且可包括带有指示器的驾驶员界面,所述指示器显示所选择最大值。
变型15可包括根据变型11-14中任一项所述的系统,且可包括能量存储装置。可通过能量分配元件,其基于能量存储装置中的电量状态独立地限制供应至电动马达的电流。
变型16可包括根据变型11-15中任一项所述的系统,其中所选择最大值在车辆断电时重设至100%。
变型17可包括根据变型11-16中任一项所述的系统,且可包括能量存储装置。所选择最大值可独立于能量存储装置的电量状态。
变型18可包括车辆中控制电动马达的方法。可通过驾驶员界面,通过其可选择对供应至电动马达的电功率的限制。在车辆运行起点,供应至电动马达的电功率可限制至所选择的限制中。
变型19可包括根据变型18所述的方法,且当车辆的加速器致动超出阈值时,其可包括超越所选择的限制并且补充额外功率的步骤。
变型20可包括根据变型18或变型19所述的方法,且其可包括当车辆断电时自动将所选择最大值重设至100%的步骤。
本发明范围内所选择变型的上述描述在本质上仅仅是说明性的,且因此,其变型或变体不被认为是偏离本发明的精神和范围。
Claims (10)
1.一种用于以电力运行的车辆的系统,其包括:电动马达;控制从能量存储装置至电动马达的电流供应的马达控制模块;以及手动输入装置,当使用时,其通过所述马达控制模块将供应至所述马达的电流限制至所选择最大值,其中所述所选择最大值能够是选择来使所述能量存储装置中所存储能量守恒的变量。
2.根据权利要求1所述的系统,其进一步包括与所述车辆的加速器踏板相连的控制元件,其中所述所选择最大值独立于所述加速器踏板被使用,且当所述加速器踏板下降超出预先确定阈值时所述所选择最大值被超越。
3.根据权利要求2所述的系统,其中,所述预先确定阈值设定成接近踏板行程的80%。
4.根据权利要求1所述的系统,其进一步包括带有指示器的驾驶员界面,所述指示器显示所述所选择最大值。
5.根据权利要求4所述的系统,其中,所述所选择最大值以千瓦为单位显示出。
6.根据权利要求1所述的系统,其进一步包括能量存储装置;以及能量分配元件,其基于所述能量存储装置的电量状态单独限制供应至所述电动马达的电流。
7.根据权利要求1所述的系统,其中,所述所选择最大值在所述车辆断电时重设至100%。
8.根据权利要求1所述的系统,其中,选择的所选择最大值能够选择成30千瓦或者更高。
9.一种延长电动车辆续航里程的系统,其包括:在系统电压下运行的马达;马达控制器,其通过改变在所述系统电压下的电流来控制至所述马达的电功率供应;功率限制选择器,通过其手动地选择对于供应至所述马达的最大功率;其中在所述电动车辆运行期间,所述马达控制器通过将电流限制至反映所选择最大功率的最大电流来限制至所述马达的功率供应。
10.一种控制车辆中电动马达的方法,其包括以下步骤:
a.提供驾驶员界面;
b.通过所述驾驶员界面手动选择对供应至所述电动马达的电功率的限制;以及
c.在车辆运行期间将对所述电动马达供应的电功率限制至所选择限制。
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