CN110062710A - 用于通过电动马达管理热发动机的起动的瞬态阶段的方法 - Google Patents

用于通过电动马达管理热发动机的起动的瞬态阶段的方法 Download PDF

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Publication number
CN110062710A
CN110062710A CN201780077727.1A CN201780077727A CN110062710A CN 110062710 A CN110062710 A CN 110062710A CN 201780077727 A CN201780077727 A CN 201780077727A CN 110062710 A CN110062710 A CN 110062710A
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motor
bsg
drive shaft
combustion engine
point
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CN201780077727.1A
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CN110062710B (zh
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D.韦迪耶
Y.吉约
J.拉雪兹
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Vitesco Technologies GmbH
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Continental Automotive GmbH
Continental Automotive France SAS
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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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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    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/38—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 apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60K6/46—Series type
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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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    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Abstract

本发明涉及用于管理混合驱动系统的燃烧发动机的起动的方法，该混合驱动系统包括燃烧发动机和电机（BSG）以及驱动轴（X），至少在起动的初始阶段期间，电机（BSG）产生扭矩以起动燃烧发动机并驱动驱动轴（X），所述方法具有瞬态起动阶段，在瞬态起动阶段期间燃烧发动机驱动驱动轴（X），且在瞬态起动阶段完成之后电机（BSG）停止，在初始阶段（ELEC）期间和在瞬态阶段期间，利用第一发动机速度设定点（N_SP_IS）调节电机（BSG），当驱动轴（X）达到第一发动机速度设定点（N_SP_IS）且保持稳定时，所述瞬态阶段开始，在所述瞬态起动阶段期间由电机（BSG）产生的扭矩的控制被配置成使得，一旦所述控制确定由电机（BSG）产生的扭矩趋于零扭矩则电机（BSG）停止。

Description

用于通过电动马达管理热发动机的起动的瞬态阶段的方法
技术领域
本发明涉及混合、燃烧和电驱动系统，尤其是用于机动车辆的混合、燃烧和电驱动系统。
背景技术
更具体地，本发明涉及这样的方法：其用于控制在车辆混合驱动系统中的在燃烧发动机的起动中当燃烧发动机从电机接管时的瞬态阶段。
以已知的方式，被称为混合的车辆包括具有燃烧（热）发动机和电机的混合驱动系统。在该背景下，本领域技术人员熟知在这种混合驱动系统起动之后当燃烧发动机从电机接管以驱动驱动轴时的瞬态阶段的控制是有些棘手的。
存在常规地用于起动燃烧发动机的两种技术。更普遍的第一种已知技术使用“传统”起动器：在该情形中，通过齿轮经由曲轴来驱动驱动轴，以便允许起动燃烧发动机。第二种技术使用交流发电机–起动器。在该情形中，电机驱动与一组滑轮接合的带系统，以使驱动轴转动且起动燃烧发动机。在混合驱动系统的燃烧发动机的电起动的背景中的电机的操作被电子控制单元或ECU监视，英语缩写ECU对本领域技术人员而言是众所周知的。通过ECU监视起动还包括其中控制燃烧发动机喷射装置的尺寸。
此外，如已知的，存在混合发动机的许多配置，尤其可能的是，电机被定位在动力传动系统内的不同位置中。
本发明仅考虑其中电机被定位成以便能够驱动发动机而不驱动轮的情形，即，被定位在图2中的P0、P1或P2中。换言之，电机需要相对于离合器以如下方式定位：使得离合器能够被配置成以便所述电机驱动驱动轴而不驱动轮。在实践中，在本发明的背景中，电机优选地被定位在离合器的上游，且与曲轴平行。
在该背景下，如在上文中所指示地，在其中燃烧发动机从电机接管以驱动驱动轴的瞬态阶段上的控制是有些复杂的。
具体地，为了改善混合驱动系统的起动的效率，至关重要的是确定燃烧发动机能够驱动驱动轴所在的力矩。现在，根据现有技术，当混合驱动系统被定位在离合器的上游时，通过电机实现发动机速度的增加，且一旦驱动轴已经达到一定发动机速度，例如，低怠速速度（régime ralenti），就允许喷射装置喷射燃料到燃烧发动机内，即使仍然存在关于燃烧发动机单独驱动驱动轴的能力一些水平的不确定性也是如此。
发明内容
本发明试图克服该缺点，并使得有可能肯定地确定燃烧发动机能够单独地驱动驱动轴，使得电机能够随即被停止。
为此目的，本发明的一个主题是用于管理包括燃烧发动机和电机以及具有发动机速度的驱动轴的混合驱动系统的燃烧发动机的起动的方法，至少在起动的初始阶段期间，电机产生扭矩以起动燃烧发动机且驱动驱动轴，所述方法具有瞬态起动阶段，在瞬态起动阶段期间，燃烧发动机驱动驱动轴，且在瞬态起动阶段完成之后，电机停止，在初始阶段期间和在瞬态阶段期间，利用第一发动机速度设定点调节电机，当驱动轴达到第一发动机速度设定点且保持稳定时，所述瞬态阶段开始，且在瞬态阶段期间，利用第二发动机速度设定点调节燃烧发动机，所述第二设定点比第一设定点高预定裕量，所述方法包括在瞬态阶段期间，控制在所述瞬态起动阶段期间由电机产生的扭矩，所述控制包括测量由电机产生的扭矩，且所述控制被配置成使得一旦所述扭矩下降到低于预定阈值以使得所述控制确定由电机产生的扭矩趋于零扭矩，则停止电机。
借助于本发明，电子控制单元通过观察由所述电机供应的扭矩朝零减小而有效地确定燃烧发动机能够从电机接管。
具体地，电子控制单元以如下方式被校准：使得在电机已经允许燃烧发动机达到第一设定点（通常等于低怠速速度）之后，将燃烧发动机调节到第二发动机速度设定点，该第二发动机速度设定点相比所述第一设定点高预定裕量。所述电子控制单元然后能够观察由电机产生的扭矩的减小。
一旦确定了由电机产生的所述扭矩趋于零，则电子控制单元停止所述电机，且燃烧发动机驱动驱动轴，通常被调节到低怠速速度。
根据一个实施例，一旦电机停止，则使用第一发动机速度设定点来调节燃烧发动机。
根据一个实施例，所述第一发动机速度设定点等于所述燃烧发动机的低怠速速度。
根据一个实施例，所述低怠速速度被包括于600转每分钟和1200转每分钟之间。
本发明还涉及用于车辆、尤其是用于机动车辆的电子控制单元，其被配置成实施如上文中简短描述的方法。
本发明还涉及包括带有燃烧发动机和电机的混合驱动系统的机动车辆，所述机动车辆包括多个轮、离合器、驱动轴和连接到驱动轴的曲轴，所述电机以如下方式连接到驱动轴：使得所述电机能够在不驱动轮的情况下驱动所述驱动轴，且机动车辆还包括如上文中简短地描述的电子控制单元。
根据一个实施例，在这种机动车辆中，电机在离合器的上游连接到驱动轴且与曲轴平行。
附图说明
从参考附图给出的下文的描述，本发明的其他特征和优点将变得显而易见，附图以非限制性示例的方式给出，并且在附图中，相同的附图标记被赋予类似的对象。
在阅读以示例的方式独自给出的下文的描述且参考附图后，将更好地理解本发明。
图1是根据本发明的混合驱动系统的图解，其包括预期用于起动燃烧发动机的电机。
图2是带有电机在动力传动系统中的可能的位置的混合车辆的图解。
图3是对应于在根据本发明的混合驱动系统中的燃烧发动机的电起动中的瞬态阶段的控制中的各个步骤的图解。
具体实施方式
本发明主要是关于在机动车辆混合、燃烧和电驱动系统的背景中的应用所提出的。然而，本发明还针对其他应用，尤其是在任何类型的陆地或者非陆地车辆的任何混合、燃烧和电驱动系统中的任何实施，只要电机在离合器的上游连接到驱动轴且优选地与曲轴平行。
参考图1，其示意性地描绘了混合驱动系统，根据本发明的方法涉及这种混合驱动系统的起动。如先前所指示地，混合驱动系统的电机BSG（附图标记BSG对应于缩写BSG，其代表带驱动起动器发电机）在离合器C的上游（以及当然差速器TX的上游）连接到驱动轴X且与曲轴V平行。
图2示出在机动车辆的骨架上的混合驱动系统的简化图解。如所描绘地，这种混合驱动系统的电机能够理论上被定位在动力传动系统中的各个点处，尤其是在P3处（在变速箱中或在差速器上）或者在P4处（在后轮毂上）。
然而，在本发明的背景中，优选地设想使用被定位在P0处、与曲轴平行且在离合器的上游的电机。替代地，在本发明的背景中，可设想通过将电机定位在P1处、在曲轴上、或者另外在P2处、在离合器C0、C1处来实施电机。在实践中，要求是，电机BSG需要能够在不驱动轮的情况下驱动驱动轴X。其位置因此取决于需要相应地配置的离合器。
最后，再次参考图1，喷射器I1、I2、I3、I4形成喷射装置，根据进行中的起动的阶段，允许或者不允许该喷射装置喷射燃料到燃烧发动机中以便允许燃烧发动机继而驱动驱动轴X。
对混合驱动系统的起动的控制由电子控制单元ECU监视。在电机BSG已经首先将驱动提供至驱动轴X之后，执行这种混合驱动系统的燃烧发动机的起动。
在实践中，一旦检测到期望起动燃烧发动机，不管这可能是通过什么手段（对点火键、电子起动器开关的作用、或者对离合器踏板或另外对油门的作用），则电子控制单元ECU命令电机BSG，所述电机以如下方式被调节：使得对应于驱动轴X旋转所在的速度的发动机速度达到第一发动机速度设定点。
根据本发明，使用第二发动机速度设定点来调节燃烧发动机本身，第二发动机速度设定点比第一发动机速度设定点高预定裕量，所述燃烧发动机调节从喷射装置被允许喷射燃料到燃烧发动机中以驱动驱动轴X所在的时刻开始，即，在所述驱动轴已经达到第一发动机速度设定点之后。
通常，第一发动机速度设定点等于发动机的低怠速速度，即，例如等于600转每分钟，而裕量是100转每分钟，第二发动机速度设定点因此等于700转每分钟。
本发明尤其旨在管理当燃烧发动机变得能够单独地驱动驱动轴X时的起动的瞬态阶段。
因此，根据本发明的方法尤其包括，在所述瞬态阶段期间，观察由电机BSG供应的扭矩朝向零的减小。
为了做到这一点，用于调节燃烧发动机的第二发动机速度设定点相比用于在开始起动时调节驱动驱动轴X的电机的第一发动机速度设定点高预定裕量。
更具体地，在起动的初始阶段期间，电机BSG驱动驱动轴X的旋转，直到所述驱动轴达到第一发动机速度设定点为止。在该起动的初始阶段期间，不允许喷射装置I1、I2、I3、I4喷射燃料到燃烧发动机内。
一旦驱动轴X达到第一发动机速度设定点，则起动的瞬态阶段开始：允许喷射装置I1、I2、I3、I4喷射燃料到燃烧发动机内，且使用作为其设定点的第二发动机速度设定点来调节所述燃烧发动机，第二发动机速度设定点相比第一发动机速度设定点高预定裕量。
因此，利用两个不同的起动发动机速度设定点（一个用于电机，且一个用于燃烧发动机）来专门地校准电子控制单元ECU。如在上文中所描述地，根据一个实施例，第一发动机速度设定点等于燃烧发动机的低怠速速度，且第二发动机速度设定点比其高例如100转每分钟。
因此，随着驱动轴X趋于达到第一发动机速度设定点，电子控制单元ECU能够观察到由电机BSG供应的扭矩朝向零减小，而燃烧发动机正在接管驱动轴X的旋转驱动。
一旦电子控制单元ECU确定由电机BSG供应的扭矩正在趋于零，例如，因为由电机供应的所述扭矩降低到低于预定阈值，则根据本发明的方法规定，所述电子控制单元ECU停止电机且使用优选地等于第一发动机速度设定点（即，尤其是低怠速速度）的发动机速度设定点来调节燃烧发动机。根据一个实施例，所述预定阈值是几N/m，通常被包括在3和5 N/m之间。
然后，已经被起动且自主地运行的燃烧发动机单独地驱动驱动轴X的旋转。
因此，总之，参考图3，在起动的初始阶段期间，一旦检测到起动燃烧发动机（步骤“DEM”）的请求，则电机驱动驱动轴的旋转，同时以闭环控制使用通常等于燃烧发动机的低怠速速度的第一发动机速度设定点N_SP_IS被调节（步骤“ELEC”）。
一旦发动机速度N达到设定点N_SP_IS且保持稳定，则起动的瞬态阶段开始且燃烧发动机被激活（步骤“THERM”）：喷射装置被允许喷射燃料，且使用第二发动机速度设定点调节燃烧发动机，该第二发动机速度设定点等于第一发动机速度设定点加上预定裕量N_SP_IS+∆N。根据一个实施例所述预定裕量等于100转每分钟。
电子控制单元然后观察由电机产生的扭矩朝向零的减小（步骤“DECR”）。只要电子控制单元未确定由电机产生的扭矩正在趋于零，燃烧发动机就不是自主的（步骤“NON_AUTO”）。
当电子控制单元确定由电机产生的扭矩趋于零时，燃烧发动机是自主的（步骤“AUTO”）。
然后使用等于第一发动机速度设定点N_SP_IS的发动机速度设定点来调节燃烧发动机，该第一发动机速度设定点N_SP_IS通常对应于所述发动机的低怠速速度（步骤“CTRL_OK”）。混合驱动系统的起动然后结束（步骤“FIN”）。
此外，应当注意，本发明不受限于以示例的方式描述的实施例，且可以设想在本领域技术人员的能力范围内的变型。
本发明还涉及机动车辆，其包括带有燃烧发动机和电机的混合驱动系统、以及离合器、曲轴和驱动轴，电机在离合器的上游连接到驱动轴且优选地与曲轴平行，并且所述车辆包括实施如上文中描述的方法的电子控制单元。
本发明还涉及这样的车辆电子控制单元。

Claims (7)

1.一种用于管理混合驱动系统的燃烧发动机的起动的方法，所述混合驱动系统包括燃烧发动机和电机（BSG）以及具有发动机速度的驱动轴（X），至少在起动的初始阶段期间，所述电机（BSG）产生扭矩以起动燃烧发动机以及驱动所述驱动轴（X），所述方法具有瞬态起动阶段，在所述瞬态起动阶段期间，所述燃烧发动机驱动所述驱动轴（X），且在所述瞬态起动阶段完成后，所述电机（BSG）被停止，其特征在于：在所述初始阶段（ELEC）期间和在所述瞬态阶段期间，利用第一发动机速度设定点（N_SP_IS）调节所述电机（BSG），当所述驱动轴（X）达到所述第一发动机速度设定点（N_SP_IS）且保持稳定时，所述瞬态阶段开始，一旦所述驱动轴已经达到所述第一发动机速度设定点（N_SP_IS），则允许喷射燃料到所述燃烧发动机中以驱动所述驱动轴（X），且在所述瞬态阶段期间，利用第二发动机速度设定点来调节所述燃烧发动机，所述第二设定点比所述第一设定点高预定裕量（∆N），在所述瞬态阶段期间，所述方法包括控制在所述瞬态起动阶段期间由所述电机（BSG）产生的扭矩，所述控制包括测量由所述电机（BSG）产生的扭矩，且所述控制被配置成使得一旦所述扭矩下降到低于预定阈值以使得所述控制确定由所述电机（BSG）产生的扭矩趋于零扭矩，则停止所述电机（BSG）。
2.根据权利要求1所述的方法，所述方法包括，在停止所述电机（BSG）之后，使用所述第一发动机速度设定点（N_SP_IS）来调节所述燃烧发动机。
3.根据前述权利要求中的一项所述的方法，其中，所述第一发动机速度设定点（N_SP_IS）等于所述燃烧发动机的低怠速速度。
4.根据前述权利要求所述的方法，所述低怠速速度被包括在600转每分钟和1200转每分钟之间。
5.一种用于车辆、尤其是用于机动车辆的电子控制单元（ECU），所述电子控制单元被配置成实施根据前述权利要求中的一项所述的方法。
6.一种包括带有燃烧发动机和电机（BSG）的混合驱动系统的机动车辆，所述机动车辆包括多个轮、离合器（C；C1、C2）、驱动轴（X）和连接到所述驱动轴（X）的曲轴（V），所述电机（BSG）以如下方式被连接到所述驱动轴（X），使得所述电机能够在不驱动所述轮的情况下驱动所述驱动轴（X），且所述机动车辆还包括根据前述权利要求所述的电子控制单元（ECU）。
7.根据前述权利要求所述的机动车辆，所述电机（BSG）在所述离合器（C；C1、C2）的上游连接到所述驱动轴（X）且与所述曲轴（V）平行。
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