CN107787404A - 用于在从惰走运行退出时控制车辆的内燃发动机重新起动的方法和设备 - Google Patents

用于在从惰走运行退出时控制车辆的内燃发动机重新起动的方法和设备 Download PDF

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CN107787404A
CN107787404A CN201680035716.2A CN201680035716A CN107787404A CN 107787404 A CN107787404 A CN 107787404A CN 201680035716 A CN201680035716 A CN 201680035716A CN 107787404 A CN107787404 A CN 107787404A
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vehicle
explosive motor
clutch
reset
coasting operation
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M·克耐斯勒
M·鲍曼
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Schaeffler Technologies AG and Co KG
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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
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18072—Coasting
    • 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
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • 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
    • F02N99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18072—Coasting
    • B60W2030/1809—Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • B60W2520/105—Longitudinal acceleration
    • 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
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/022—Engine speed
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
    • F02N2200/061—Battery state of charge [SOC]
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
    • F02N2200/0808—Steering state, e.g. state of power assisted steering
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
    • F02N2200/101—Accelerator pedal position
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/10—Parameters used for control of starting apparatus said parameters being related to driver demands or status
    • F02N2200/102—Brake pedal position
    • 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
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/20—Control related aspects of engine starting characterised by the control method
    • F02N2300/2002—Control related aspects of engine starting characterised by the control method using different starting modes, methods, or actuators depending on circumstances, e.g. engine temperature or component wear
    • 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
    • F02N5/00—Starting apparatus having mechanical power storage
    • F02N5/04—Starting apparatus having mechanical power storage of inertia type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect

Abstract

本发明涉及用于在构造有换档变速器的车辆从惰走运行退出时控制内燃发动机重新起动的方法，在所述方法中，在车辆行驶期间自动地打开并且又闭合离合器。在所述方法中，根据车辆的当前行驶状态决定内燃发动机的重新起动是通过闭合离合器由飞轮起动或者说拖曳起动进行还是通过起动机单元进行。

Description

用于在从惰走运行退出时控制车辆的内燃发动机重新起动的 方法和设备
技术领域
本发明涉及一种用于构造有换档变速器的车辆从惰走运行退出时控制内燃发动机重新起动的方法；以及本发明涉及一种用于实施该方法的设备。
背景技术
由DE 102 21 701 A1已知用于具有自动离合器设备的机动车的控制方法，在该控制方法中使机动车处于惰走运行中。惰走应理解为在滑行阶段有针对性的离合分离，在所述滑行阶段中既不操纵作为燃料供给计量单元的油门踏板也不操纵制动踏板。这种惰走模式基本上用于节省燃料。在此，车辆滚动，其中，驱动车辆的发动机或者被关断或者以空转转速运转。在惰走模式中，离合器在已挂入档的情况下通过电子控制单元控制地打开，使得车辆滚动，而没有在此由于发动机的制动作用损失动能。该惰走模式通过操纵制动器或油门踏板结束。发动机必须重新起动，这通过牵引发动机到起动转速进行。
如由EP 1 497 151 B2已知，内燃发动机也能够借助起动机单元起动。
在此不利的是，为了从惰走退出总是选择不变的策略用于重新起动发动机，所述策略在车辆运行期间没有改变。
发明内容
本发明基于下述任务：给出构造有换档变速器的车辆从惰走运行退出时控制内燃发动机重新起动的方法，在该方法中改进现有技术的缺点。
根据本发明，该任务通过下述方式解决：根据车辆的当前行驶状态决定内燃发动机的重新起动是通过闭合离合器由飞轮起动或者说拖曳起动(Schleppstart)进行还是通过起动机单元进行。这具有下述优点：能够根据行驶状态决定起动内燃发动机应当借助起动机还是飞轮起动或者说拖曳起动进行。在此，当前行驶状态此外应当理解为车辆的不同参数的参数范围，所述参数范围在参数界限内可变化地被调整。在当前行驶状态中考虑的参数界限推导出行驶状况并且能够根据例如油门踏板位置、制动踏板位置或者转向角被探测。
有利地，根据至少一个车辆特定参数决定内燃发动机的重新起动是通过闭合离合器由飞轮起动或者说拖曳起动进行还是通过起动机单元进行。这样的车辆特定参数能够理解为例如蓄电池充电状态或者发动机转速。
在一个构型中，内燃发动机的重新起动根据车辆加速度进行。由此能够特别好地导出发动机是否需要起动机，是否应当进行飞轮起动或者说拖曳起动，或者是否(例如在车辆在所希望的滑行运行中减速时)内燃发动机能够与离合器在无喷射时耦合。
在一个变型中，如果车辆加速度超过一阈值，则进行飞轮起动或者说拖曳起动。替代地，如果车辆加速度低于一阈值，则激活起动机单元。因此能够在惰走退出期间可变化地形成重新起动。在飞轮和拖曳起动和起动机起动之间的决定在关于惰走退出的决定做出之后才做出。
本发明的一个扩展方案涉及用于配备有换档变速器的车辆从惰走运行退出时控制内燃发动机重新起动的设备，所述设备操控布置在换档变速器中的离合器，用于在车辆行驶期间打开和闭合。在该设备中，发动机起动-逻辑单元与用于给出车辆特定参数的至少一个第一传感器单元连接并且与用于示出车辆当前行驶状态的第二传感器单元连接，所述发动机起动-逻辑单元引导到离合器控制器和起动机控制器上用于重新起动发动机。因此能够根据车辆状况改变发动机重新起动。
有利地，惰走结束-逻辑单元是发动机起动-逻辑单元的上级。通过该上级关系，当惰走结束-逻辑单元通过信号通知应当进行从惰走运行退出时，发动机启开启-逻辑单元才激活。
附图说明
本发明允许多个实施方式。其中一个实施方式要根据在附图中的示图来详细地阐述。
在此示出：
图1根据本发明的设备的实施例；
图2根据本发明的方法的实施例。
具体实施方式
在图1中示出控制器1，该控制器示出根据本发明的设备的实施例。在此，该控制器1构造为发动机控制器，然而替代地，也可以是分立的控制器，该控制器在带有手动换档变速器的车辆中控制惰走运行。在此，带有手动换档变速器的车辆具有离合器执行器，该离合器执行器选择性地能够并联于离合器踏板打开离合器，然而或者具有关于离合器操纵的单独控制。在此，该离合器执行器能够通过一个或多个传感器获得信号，所述传感器在踏板自身上或者说在分离系统的主动缸上求取离合器踏板的位置，或者以其它方式探测驾驶员借助离合器踏板用于操纵离合器的意图。
此外，术语“惰走”应当理解为自动地打开离合器，尤其在车辆行驶期间自动地打开离合器，其中，附加选项在于，在这种惰走阶段关闭内燃发动机。惰走的目的是使内燃发动机与传动系脱耦，以避免内燃发动机的牵引扭矩作为损失扭矩，这能够实现节省燃料。
在控制器1中保存的控制策略总体上独立于驾驶员操纵地调节离合器的打开和闭合，以及调节驱动车辆的内燃发动机的停止或者说开启。
控制器1包括四个逻辑单元2、3、4、5。第一逻辑单元2是与发动机-逻辑单元3连接的惰走开启-逻辑单元2。并联于惰走开启-逻辑单元3存在惰走结束-逻辑单元4，该惰走结束-逻辑单元决定惰走运行的关闭。该惰走结束-逻辑单元4引导到发动机起动-逻辑单元5上，该发动机起动-逻辑单元与离合器控制器6连接用于闭合离合器以便重新起动内燃发动机，并且与起动机单元7连接用于起动内燃发动机。所有四个逻辑单元2、3、4、5相互独立地提供相同的输入信号，其方式是：每个逻辑单元2、3、4、5直接与用于给出车辆特定参数的第一传感器单元8连接，并且与用于示出车辆的行驶状态的第二传感器单元9连接。
在图2中示出根据本发明的方法的一个实施例。在此，在框101中提供第一传感器单元8的输入信号，该输入信号被车辆特定参数特征化。与之并联地，在框102中提供第二传感器单元9的另外的输入信号，该输入信号将车辆状态特征化。所述输入信号一次地引导到框103上，在那里分析处理输入信号并且决定惰走进入。其后衔接有框104，该框触发车辆的惰走进入。
在已触发惰走运行时过渡到框105中，在框105处同样直接分析处理框101和102的输入信号。在框105中决定，在惰走运行期间车辆的内燃发动机应当具有哪个状态。在此，区分三个状态。在框106中内燃发动机在整个惰走运行期间运行，而该内燃发动机在框107中在整个惰走运行期间保持关断。在框108中，内燃发动机在惰走运行期间在关闭之后能够实现重新起动。
同时，输入信号101和102引导到框109上，该框109根据所述输入信号决定是否结束惰走运行。如果做出结束惰走运行的决定，则在框110中进行惰走运行的结束。如果引入惰走运行的结束，则过渡到框111，该框根据同样地直接附在其上的输入信号101和102决定：如果在从惰走运行退出的情况下内燃发动机没有运行，则应当如何实施内燃发动机的重新起动。优选地，这个决定根据内燃发动机的加速度做出。将该加速度与一加速度阈值比较。如果该加速度大于加速度阈值，那么通过闭合离合器发起内燃发动机的拖曳起动(框112)。如果车辆的加速度小于加速度阈值，那么给起动机单元7发出信号，该起动机单元作为起动辅助用于所述内燃发动机(框113)。
附图标记列表
1 控制器
2 惰走起动-逻辑单元
3 发动机-逻辑单元
4 惰走结束-逻辑单元
5 发动机起动-逻辑单元
6 离合器控制器
7 起动机单元
8 传感器单元
9 传感器单元

Claims (7)

1.用于构造有换档变速器的车辆从惰走运行退出时控制内燃发动机重新起动的方法，在所述方法中，在所述车辆行驶期间自动地打开并且又闭合离合器，其特征在于，根据所述车辆的当前行驶状态决定所述内燃发动机的重新起动是通过闭合所述离合器由飞轮起动或者拖曳起动进行还是通过起动机单元进行。
2.根据权利要求1所述的方法，其特征在于，根据至少一个车辆特定参数决定所述内燃发动机的重新起动是通过闭合所述离合器由飞轮起动或者拖曳起动进行还是通过起动机单元进行。
3.根据权利要求1所述的方法，其特征在于，所述内燃发动机的重新起动根据车辆加速度进行。
4.根据权利要求1、2或3所述的方法，其特征在于，如果所述车辆加速度超过一阈值，则进行所述飞轮起动或者拖曳起动。
5.根据权利要求1、2或3所述的方法，其特征在于，如果所述车辆加速度低于所述阈值，则激活所述起动机单元。
6.用于配备有换档变速器的车辆从惰走运行退出时控制内燃发动机重新起动的设备，所述设备操控布置在所述换档变速器中的离合器，用于在所述车辆行驶期间打开和闭合，其特征在于，发动机起动-逻辑单元(5)与用于给出车辆特定参数的至少一个第一传感器单元(8)连接，并且与用于示出所述车辆的当前行驶状态的第二传感器单元(9)连接，所述发动机起动-逻辑单元引导到离合器控制器(6)和起动机控制器(7)上用于所述内燃发动机的重新起动。
7.根据权利要求6所述的设备，其特征在于，惰走结束-逻辑单元(4)是所述发动机起动-逻辑单元(5)的上级。
CN201680035716.2A 2015-07-30 2016-07-21 用于在从惰走运行退出时控制车辆的内燃发动机重新起动的方法和设备 Pending CN107787404A (zh)

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