CN105584476B - 混合动力车的控制方法和*** - Google Patents

混合动力车的控制方法和*** Download PDF

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Publication number
CN105584476B
CN105584476B CN201510612827.2A CN201510612827A CN105584476B CN 105584476 B CN105584476 B CN 105584476B CN 201510612827 A CN201510612827 A CN 201510612827A CN 105584476 B CN105584476 B CN 105584476B
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generator
motor
engine
control method
brake
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CN105584476A (zh
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赵镇国
崔锦林
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Hyundai Motor Co
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Hyundai Motor Co
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
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    • Y10S903/00—Hybrid electric vehicles, HEVS
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Abstract

本发明提供一种用于包括作为动力源的发动机、第一电动机/发电机和第二电动机/发电机的混合动力车的控制方法和***。所述控制方法包括：通过利用从所述发动机和第二电动机/发电机传递来的驱动力以固定的齿轮比驱动来执行并行驱动模式。此外，从固定设置在所述发电机和发动机之间的行星齿轮组的齿轮比的状态释放OD制动器。然后，利用第二电动机/发电机的驱动力来执行电动车(EV)驱动模式。

Description

混合动力车的控制方法和***
技术领域
本公开涉及一种用于混合动力车的控制方法和***以及用于混合动力车的动力传递装置(power transmission device)，并且更具体地，涉及一种防止当改变驱动模式时变速冲击发生的用于混合动力车的控制方法和***。
背景技术
通常，环保车辆技术正在发展，并且汽车制造商也相应地发展环保车辆以实现环保和提高燃料效率。因此，汽车制造商已经研发出电动车(EV：electric vehicle)、混合动力电动车(HEV：hybrid electric vehicle)和燃料电池电动车(FCEV：fuel cell electricvehicle)，并且作为未来车辆技术。
由于这些类型的环保车辆具有许多技术上的限制，如重量和成本等，汽车制造商都已经把重点放在混合动力车上作为解决实际问题的方案如排放规则和提高燃料效率的需求。混合动力车具有可以以不同的方式进行组合的两个或多个动力源。该动力源可以是使用化石燃料的常规的汽油发动机或柴油发动机，结合电驱动的电动机/发电机。
混合动力车在较低的速度下利用具有改进的低扭矩特性的电动机/发电机作为主要动力源，并且在较高的速度利用具有改进的高扭矩特性的发动机作为主要动力源。因此，由于在较低的速度范围内利用化石燃料的发动机停止并且电动机/发电机被使用，所以混合动力车具有提高燃油效率和减少废气排放的良好效果。
用于上述混合动力车的动力传递装置被分为单模(single-mode)类型和多模(multi-mode)类型。单模类型具有不需要扭矩传递装置如用于变速控制的离合器和制动器的优点，但它也具有如下缺点，如由于在高速行驶时效率恶化导致的低燃料效率，以及需要额外的应用于大型车辆的扭矩泵出(倍增)装置(torque pump-up device)。多模类型具有如下优点，如在高速行驶时的高效率，以及由于它可被设计为自动地泵出(pump up；倍增)扭矩，适用于各种车辆的大小。
因此，近年来，多模类型已经被主要采用，而不是单模类型。多模类型的动力传递装置包括：多个行星齿轮组、多个用于传递运动并产生电力的电动机/发电机，控制行星齿轮组的转动元件的多个扭矩传递装置(摩擦元件)，以及用作电动机/发电机的能源的电池。
多模类型的动力传递装置基于行星齿轮组、电动机/发电机和扭矩传递装置的连接结构具有不同的工作机制。传统的混合动力车实现了电动机扭矩控制方法，以防止或减少在模式改变期间产生的变速冲击。
然而，电动机扭矩控制具有以下缺点。首先，使用电动机(MG1)的扭矩控制可能增加电流消耗以在0rpm应用扭矩，这反过来可能会导致出现如下问题，如电池、逆变器或电动机的过热和耐用性劣化。第二，在再生制动期间释放OD制动器可能导致从MG2产生的能量被排放到MG1，这会降低***的效率。最后，当SOC耗尽时由于不可能执行MG1(电动机)的扭矩控制，这可能降低驾驶性能和乘坐舒适度。
发明内容
本公开通过减少发动机的燃料消耗来提高***的效率。此外，本公开通过降低电动机过大的电流消耗来提高***效率。对于本领域技术人员来说，上述目的和本文没有描述的其它目的将从以下描述中可以被清楚地理解。
根据本公开的示例性实施方式，一种用于包括作为动力源的发动机、第一电动机/发电机和第二电动机/发电机的混合动力车的控制方法，可以包括：对于并行驱动模式，利用从发动机和第二电动机/发电机传递来的驱动力以固定的齿轮比来驱动；从固定设置在发电机和发动机之间的行星齿轮组的齿轮比的状态释放OD制动器；以及在EV模式中利用第二电动机/发电机的驱动力来驱动。
根据本公开的另一示例性实施方式，一种用于包括作为动力源的发动机、第一电动机/发电机和第二电动机/发电机的混合动力车的控制方法，可以包括：对于并行驱动模式利用从发动机和第二电动机/发电机传递的驱动力以固定的齿轮比来驱动；从固定设置在发电机和发动机之间的行星齿轮组的齿轮比的状态释放OD制动器；以及在该OD制动器释放步骤之后在动力分配(power split)模式下进行驱动。其他示例性实施方式的具体细节包含在以下的描述和附图中。
附图说明
在下文与附图相结合的详细描述中可以更清楚地理解本公开中上述的和其它的目的、特征及优点，其中：
图1是根据本公开第一示例性实施方式的混合动力车的动力传递装置的示意图；
图2是根据本公开第一示例性实施方式的在EV模式下混合动力车的动力传递装置的动力传递示意图；
图3是根据本公开第一示例性实施方式的在动力分配模式下混合动力车的动力传递装置的动力传递示意图；
图4是根据本公开第一示例性实施方式的在直接驱动(OD；direct-drive)模式下混合动力车的动力传递装置的动力传递示意图；
图5是根据本公开第二示例性实施方式的在直接驱动(1:1)模式下混合动力车的动力传递装置的动力传递示意图；
图6是根据本公开示例性实施方式的混合动力车的框图。
图7是根据本公开示例性实施方式的混合动力车的控制方法的流程图。
图8是根据本公开示例性实施方式的混合动力车的控制方法的流程图。
附图标记说明
BK...OD制动器
DIFF...差动(差速器)
MG1，MG2......第一，第二电动机/发电机
OS...输出轴
PG...行星齿轮组
CL...离合器
具体实施方式
应该理解的是，本文中使用的术语“车辆”、“车辆的”或其他类似术语包括一般的机动车辆，比如包含多功能运动车(SUV)、公共汽车、卡车、各种商业车辆的客运汽车、包括各种轮船和舰船的船只、飞机等，还包括混合动力车、电动车、插电式混合动力电动车、氢动力车和其它替代燃料车辆(例如，燃料是从非石油资源中提炼出来的)。如本文所述，混合动力车是具有两种或多种动力源的车辆，例如同时具有汽油动力和电动力的车辆。
尽管示例性实施方式被描述为使用多个单元来执行示例性进程，可以理解的是，上述示例性进程也可以由一个或多个模块执行。此外，应该理解的是，术语控制器/控制单元指的是包括存储器和处理器的硬件设备。上述存储器被配置成存储该模块，以及处理器专门配置成执行该模块以实现其在下面进一步描述的一个或多个进程。
此外，本发明的控制逻辑可被实施为计算机可读介质上的非暂时性计算机可读介质，该计算机可读介质包含由处理器、控制器/控制单元等执行的可执行程序指令。计算机可读介质的例子包括但不限于ROM、RAM、光盘(CD)-ROM、磁带、软盘、闪存盘、智能卡和光学数据存储设备。计算机可读记录介质也可以分布在连接计算机***的网络上，这样可以通过分布式方式例如通过远程服务器或控制器局域网络(CAN)存储和执行计算机可读介质。
本文使用的术语仅出于说明具体实施方式的目的，而不意在限制本发明。如本文所使用的，单数形式“一个”、“一种”、“该”也意在包括复数形式，除非上下文中另外明确指明。还应当理解的是，在说明书中使用的术语“包括”和/或“包含”是指存在所述特征、整数、步骤、操作、元素和/或部件，但是不排除存在或添加一个或多个其他特征、整数、步骤、操作、元素、部件和/或其群组。如本文所使用的，术语“和/或”包括一个或多个相关所列项的任何和所有结合。
除非特别说明或从上下文中是显而易见的，如本文所用，术语“约”应理解为本领域中一个正常容差的范围，例如在平均值的2个标准差之内。“约”可以理解为在规定值的10％，9％，8％，7％，6％，5％，4％，3％，2％，1％，0.5％，0.1％，0.05％或0.01％内。除非在上下文中明确规定，否则本文提供的所有数值都被术语“约”修饰。
本公开的示例性实施方式将参考附图进行更详细地描述。然而，本公开不被限制为本文上述的示例性实施方式，并且能够以不同的方式实现，以及这些实施方式仅用以完成本发明的公开内容，并通知本领域技术人员本公开的确切范围，并且本公开仅由所附权利要求定义。相同的附图标记或标号通篇指代相同的元件。
下文中，将参考提供的附图来说明混合动力车及其控制方法，本发明将基于本公开的示例性实施方式进行说明。参考图1，附图标记O/P表示油泵，配置成通过设置在第一输入轴(IS1)上的油泵驱动齿轮(OP1)和油泵驱动齿轮(OP2)之间的外齿轮啮合，接收第一输入轴(IS1)的旋转动力来产生传递所需的液压。
图2是根据本公开第一示例性实施方式的在EV模式下混合动力车的动力传递装置的动力传递示意图。参考图2，当在EV模式下发动机(ENG)停止时，第二电动机/发电机(MG2)的驱动力可以通过第二副轴(counter shaft)2(CS2)、第二副齿轮(counter gear)(CG2)、第一输出齿轮(OG1)、输出轴(OS)和第二输出齿轮(OG2)被传递到差动(DIFF)最终减速齿轮(FG)。换句话说，通过调节第二电动机/发电机(MG2)的输出，车辆的电气无级变速和驱动可被执行。
图3是根据本公开第一示例性实施方式的在动力分配模式(power split mode)下混合动力车动力传递装置的动力传递示意图。参考图3，在动力分配模式下，发动机(ENG)的旋转动力可被传递作为驱动轮的驱动力，以及作为用于第一电动机/发电机(MG1)发电的驱动力，并且第二电动机/发电机(MG2)的旋转动力可以被施加作为辅助动力。
换句话说，发动机(ENG)可以由第一电动机/发电机(MG1)来启动，并且该发动机(ENG)的旋转动力可以在行星齿轮组(PG)产生分支，以利用第二输入齿轮(IG2)、第一输出齿轮(OG1)、输出轴(OS)和第二输出齿轮(OS2)来减小旋转动力的一部分的速度并且将动力传递到差动最终减速齿轮(FG)和驱动轮，以及其余的旋转动力可通过该第二输入齿轮(IG2)、第一副齿轮(CG1)和第一副轴(CS1)被输入到所述第一电动机/发电机(MG1)，然后被传递作为用于再生的驱动动力。
从第一电动机/发电机(MG1)产生的电力可以用作驱动第二电动机/发电机(MG2)的电能，或者可以被充电到电池(未示出)。此外，用作辅助动力的第二电动机/发电机(MG2)的旋转动力利用第二副轴(CS2)、第二副齿轮(CG2)、第一输出齿轮(OG1)、输出轴(OS)和第二输出齿轮(OG2)可以在速度上被再次降低并且被传递到差动(DIFF)最终减速齿轮(FG)和驱动轮。
图4是根据本公开第一示例性实施方式的在直接驱动(OD)模式下混合动力车的动力传递装置的动力传递示意图。参考图4，在直接驱动(OD)模式下，OD制动器(BK)可以***作以操作行星齿轮组(PG)的恒星齿轮(S)作为固定的因素。
发动机(ENG)的旋转动力可以在行星齿轮组(PG)处增速，并且通过第二输入齿轮(IG2)、第一输出齿轮(OG1)、输出轴(OS)和第二输出齿轮(OG2)可以减速并被传递到差动(DIFF)最终减速齿轮(FG)和驱动车轮。此外，用作辅助动力的第二电动机/发电机(MG2)的旋转动力通过第二副轴(CS2)、第二副齿轮(CG2)、第一输出齿轮(OG1)、输出轴(OS)和第二输出齿轮(OG2)可以减速，并被传递到差动(DIFF)最终减速齿轮(FG)和驱动车轮。
图5是根据本公开第二示例性实施方式的在直接驱动(1:1)模式下混合动力车的动力传递装置的动力传递示意图。参照图5，在第二示例性实施方式中，用于可变直接驱动的离合器(CL)设置在行星齿轮组(PG)上。换句话说，在行星齿轮组(PG)的三个旋转元件中，两个旋转元件可以可变地连接，从而在直接驱动状态下具有行星齿轮组(PG)，由此输出从发动机(ENG)输入的旋转动力。
因此，发动机(ENG)的旋转动力可以通过行星齿轮组(PG)被输出，并且通过第二输入齿轮(IG2)、第一输出齿轮(OG1)、输出轴(OS)、第二输出齿轮(OG2)和差动(DIFF)最终减速齿轮(FC)可以降速并被传递到驱动轮。此外，用作辅助动力的第二电动机/发电机(MG2)的旋转动力利用第二副轴(CS2)、第二副齿轮(CG2)、第一输出齿轮(OG1)、输出轴(OS)和第二输出齿轮(OG2)可以降速，并且被传递到差动(DIFF)最终减速齿轮(FG)和驱动轮。
图6是根据本公开示例性实施方式的混合动力车的框图。图7是根据本公开示例性实施方式的混合动力车的控制方法的流程图。图8是根据本公开示例性实施方式的混合动力车的控制方法的流程图。
参照图6至图8，根据本公开示例性实施方式的用于混合动力车的控制方法被示出，其中混合动力车可以包括发动机(ENG)、第一电动机/发电机(MG1)和第二电动机/发电机(MG2)作为动力源。车辆的各组件可以通过控制器进行操作。
具体地，该控制方法可以包括：并行驱动模式(S10)，其中从发动机(ENG)和第二电动机/发电机(MG2)以固定的齿轮比来接收动力；从固定设置在发电机和发动机(ENG)之间的行星齿轮组的齿轮比的状态释放OD制动器(BK)(S15)；以及利用第二电动机/发电机(MG2)的驱动力在EV模式下进行驱动(S17)。
根据本公开的示例性实施方式，用于混合动力车的控制方法还可以包括：在并行模式步骤(S10)之后且在OD制动器(BK)释放步骤(S15)之前，降低行星齿轮组转速(S13)。降低行星齿轮组转速的步骤(S13)包括：将第一电动机/发电机(MG1)的扭矩和发动机(ENG)的扭矩调整为0，其中第一电动机/发电机(MG1)利用从发动机(ENG)接收的驱动力来产生电力。
此外，降低转速处理(S13)包括：增加第二电动机/发电机(MG2)的扭矩。当制动踏板1被接合时(例如，将压力施加到踏板)，降低转速处理可以被执行。此外，降低转速处理(S13)可以被执行以将并行模式转换为电动车(EV)模式。当制动踏板1被接合时，控制器5可以配置成确定将并行模式转换为EV模式的需求。然后，控制器5可以配置成降低行星齿轮组的转速。此外，在OD制动器被释放之前，控制器5可以配置成将发动机(ENG)的扭矩和第一电动机/发电机(MG1)的扭矩调节为0。换句话说，发动机(ENG)应该克服摩擦扭矩，并且飞轮的输出扭矩可以为0。
另一方面，第二电动机/发电机(MG2)可用来补偿减少的发动机(ENG)扭矩，从而提供驾驶者所需的扭矩。因为从并行模式转换成EV模式通常对应于再生制动状态，控制器5可以配置成操作第二电动机/发电机(MG2)以管理所需的扭矩。当发动机(ENG)的扭矩输出为0时，控制器5还可以配置成释放OD制动器(BK)释放。因此，因为发动机(ENG)扭矩为0，齿轮架(carrier)和恒星齿轮的转速不会发散。
在OD制动器(BK)的释放完成之后，控制器5可以配置成操作发动机(ENG)以执行燃料切断控制。虽然由于燃料切断使得发动机(ENG)的转速可以减小至0rpm，但是不进行发动机(ENG)停止控制就会因为发动机的惯性而导致OWC损坏。因此，当发动机(ENG)处于低于预定转速的旋转速度时(例如，接近0rpm)，控制器5可以配置成利用第一电动机/发电机(MG1)来执行转速调整(例如，控制)以停止发动机(ENG)。
根据本公开示例性实施方式的混合动力车的控制方法，其中混合动力车包括发动机(ENG)、第一电动机/发电机(MG1)和第二电动机/发电机(MG2)作为动力源，上述控制方法可以包括：通过利用从发动机(ENG)和第二电动机/发电机(MG2)传递来的动力以固定的齿轮比进行驱动来执行并行驱动模式(S20)；从固定设置在发电机和发动机(ENG)之间的行星齿轮组的齿轮比的状态释放OD制动器(BK)(S25)；以及在OD制动器(BK)释放步骤(S25)之后执行动力分配驱动模式(S27)。
根据本公开的示例性实施方式，用于混合动力车的控制方法还可以包括：在并行驱动模式(S20)之后且在OD制动器(BK)释放(S25)之前，降低行星齿轮组的转速(S23)。在降低行星齿轮组的转速的步骤(S23)中，第一电动机/发电机(MG1)的扭矩和发动机(ENG)的扭矩被调整为0，其中第一电动机/发电机(MG1)从发动机(ENG)接收驱动力来产生电力。降低转速的步骤(S23)还可以包括：第二电动机/发电机(MG2)的扭矩可以增加的车速跟踪。
此外，当加速踏板被接合时(例如，将压力施加到踏板)时，降低转速的步骤(S23)可以被执行。降低转速的步骤(S23)也可以被执行以将并行模式转换为动力分配模式。当加速踏板3被接合时，控制器5可以配置成确定将并行模式转换为动力分配模式的需求。然后，控制器5可以配置成降低行星齿轮组的转速。此外，在OD制动器被释放之前，控制器5可以配置成将发动机(ENG)的扭矩和第一电动机/发电机(MG1)的扭矩调节为0。换句话说，发动机(ENG)应该克服摩擦扭矩以允许飞轮的输出扭矩变为0。
另一方面，第二电动机/发电机(MG2)可用来补偿减少的发动机(ENG)扭矩，从而提供驾驶者所需的扭矩。当发动机(ENG)扭矩输出为0时，控制器5还可以配置成释放OD制动器(BK)释放。因为发动机(ENG)扭矩为0，齿轮架和恒星齿轮的转速不会发散。在制动器释放完成之后，控制器5可以配置成利用第一电动机/发电机(MG1)或者第一电动机/发电机(MG1)和发动机(ENG)，在动力分配模式下将转速调节到目标转速以在目标发动机(ENG)操作点(工作点)驱动。
另一方面，从并行模式到动力分配模式的转换可能伴随着由于***限制导致第二电动机/发电机(MG2)不能向驾驶者提供所需的扭矩。具体地，控制装置5可以配置成执行向动力分配模式的转换。响应于确定由于***限制而限制第二电动机/发电机(MG2)的扭矩的需求，在该OD制动器(BK)被释放之前，控制器5可以配置成操作第二电动机/发电机(MG2)以输出至多***限制的扭矩。
另外，控制装置5可以配置成操作发动机(ENG)以提供驾驶员所期望的扭矩。具体地，发动机(ENG)和第二电动机/发电机(MG2)以预定斜率变化到目标扭矩。在OD制动器(BK)被释放之前，第一电动机/发电机(MG1)可以配置成输出相对于发动机(ENG)扭矩的反作用扭矩(reactive torque)。在OD制动器(BK)被释放之后，控制器5可以配置成通过操作第一电动机/发电机(MG1)或者第一电动机/发电机(MG1)和发动机(ENG)来将发动机的转速调节到目标转速。
如上所述，根据本公开示例性的实施方式，提供以下效果。首先，由于可利用发动机来进行扭矩控制，发动机的燃料消耗可被减小，并且***的效率可以得到改进。第二，由于可利用发动机来进行扭矩控制，电动机过大的电流消耗可被减少，并且***的效率可以得到改进。
在上文中，虽然本公开已经参照示例性实施方式和附图进行了描述，但是本公开不限于此，而是在不脱离所附权利要求定义的本公开的精神和范围的情况下，可以由本公开所属领域的技术人员进行各种修改和改变。

Claims (15)

1.一种用于包括作为动力源的发动机、第一电动机/发电机和第二电动机/发电机的混合动力车的控制方法，所述控制方法包括以下步骤：
由控制器通过利用从所述发动机和所述第二电动机/发电机传递来的驱动力以固定的齿轮比驱动来执行并行驱动模式；
由所述控制器从使设置在所述第一电动机/发电机和第二电动机/发电机与所述发动机之间的行星齿轮组的齿轮比固定的状态释放OD制动器，其中，在直接驱动模式下，所述OD制动器***作以操作所述行星齿轮组的恒星齿轮作为固定的因素；以及
由所述控制器利用所述第二电动机/发电机的驱动力来执行电动车驱动。
2.根据权利要求1所述的控制方法，还包括以下步骤：
在并行驱动模式之后且在OD制动器释放之前，由所述控制器降低行星齿轮组的转速。
3.根据权利要求2所述的控制方法，其中在转速降低的过程中，利用从所述发动机传递来的驱动力来产生电力的所述第一电动机/发电机的扭矩和发动机的扭矩被调整为0。
4.根据权利要求3所述的控制方法，其中降低转速的步骤还包括：
由所述控制器增加所述第二电动机/发电机的扭矩。
5.根据权利要求2所述的控制方法，其中当制动踏板被接合时，执行降低转速的步骤。
6.一种用于包括作为动力源的发动机、第一电动机/发电机和第二电动机/发电机的混合动力车的控制方法，所述控制方法包括以下步骤：
由控制器通过利用从所述发动机和所述第二电动机/发电机传递来的驱动力以固定的齿轮比驱动来执行并行驱动模式；
由所述控制器从使设置在所述第一电动机/发电机和第二电动机/发电机与所述发动机之间的行星齿轮组的齿轮比固定的状态释放OD制动器，其中，在直接驱动模式下，所述OD制动器***作以操作所述行星齿轮组的恒星齿轮作为固定的因素；以及
在所述OD制动器被释放之后，由所述控制器执行动力分配驱动模式。
7.根据权利要求6所述的控制方法，还包括以下步骤：
在所述并行驱动模式之后且在所述OD制动器被释放之前，由所述控制器降低行星齿轮组的转速。
8.根据权利要求7所述的控制方法，其中在降低转速的步骤中，利用从发动机传递来的驱动力来产生电力的所述第一电动机/发电机的扭矩和所述发动机的扭矩被调整为0。
9.根据权利要求8所述的控制方法，其中降低转速的步骤还包括：
由所述控制器增加所述第二电动机/发电机的扭矩。
10.根据权利要求7所述的控制方法，其中当加速踏板被接合时，执行降低转速的步骤。
11.一种用于包括作为动力源的发动机、第一电动机/发电机和第二电动机/发电机的混合动力车的控制***，所述控制***包括：
存储器，配置成存储程序指令；以及
处理器，配置成执行所述程序指令，所述程序指令在被执行时配置成：
通过利用从所述发动机和所述第二电动机/发电机传递来的驱动力以固定的齿轮比驱动来执行并行驱动模式；
从使设置在所述第一电动机/发电机和第二电动机/发电机与所述发动机之间的行星齿轮组的齿轮比固定的状态释放OD制动器，其中，在直接驱动模式下，所述OD制动器***作以操作所述行星齿轮组的恒星齿轮作为固定的因素；以及
利用所述第二电动机/发电机的驱动力来执行电动车驱动。
12.根据权利要求11所述的控制***，其中所述程序指令被执行时配置成：
在所述并行驱动模式之后且在所述OD制动器释放之前，降低所述行星齿轮组的转速。
13.根据权利要求12所述的控制***，其中在降低转速的过程中，利用从所述发动机传递来的驱动力来产生电力的所述第一电动机/发电机的扭矩和发动机的扭矩被调整为0。
14.根据权利要求13所述的控制***，其中在降低转速的过程中，所述程序指令被执行时配置成：
增加所述第二电动机/发电机的扭矩。
15.根据权利要求12所述的控制***，其中当制动踏板被接合时，执行降低转速的步骤。
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