CN103373345A - 混合动力车辆的运行方法及其控制装置 - Google Patents
混合动力车辆的运行方法及其控制装置 Download PDFInfo
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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
- 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
- B60K6/48—Parallel type
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
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- B60W2556/00—Input parameters relating to data
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- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
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- Y10S903/902—Prime movers comprising electrical and internal combustion motors
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Abstract
本发明涉及混合动力车辆的运行方法及其控制装置,该混合动力车辆包括具有内燃机(2)和电机(3)的混合动力驱动装置(1)、连接在内燃机和电机之间的离合器(6)和连接在混合动力驱动装置和从动装置(4)之间的变速器(5),在混合驱动行驶时在内燃机的被动运转中使内燃机与从动装置脱开联接和停止运转以便过渡到纯电动行驶中,当内燃机在被动运转燃料截断中不点火地运行时,在维持被动运转燃料截断的情况下通过降低连接在内燃机和电机之间的离合器的传动能力使内燃机与从动装置脱开联接和停止运转。
Description
技术领域
本发明涉及一种用于运行混合动力车辆的方法。本发明还涉及一种混合动力车辆控制装置。
背景技术
汽车越来越多地被构造成混合动力车辆,其驱动总成由混合动力驱动装置提供,该混合动力驱动装置包括内燃机和附加的电机。在混合动力车辆的混合动力驱动装置和混合动力车辆的从动装置之间连接有变速器。变速器的运行在此由变速器控制装置控制和/或调节。电机的运行由混合动力控制装置控制和/或调节。内燃机的运行由发动机控制装置控制和/或调节。
在汽车的混合驱动行驶中,不仅内燃机而且混合动力驱动装置的电机在混合动力车辆的从动装置上提供驱动力矩。在纯电动行驶中,混合动力驱动装置的内燃机与从动装置脱开联接并且优选停止运转。如应在混合动力驱动装置的内燃机的被动运转中从混合驱动行驶转换为纯电动行驶,则内燃机在被动运转(Schubbetrieb)中与从动装置脱开联接和停止运转,这在由实践中已知的混合动力车辆中这样进行,即在被动运转中运行的内燃机的转矩按预定义的变化曲线约上升到零并且之后连接在内燃机和电机之间的离合器打开,以便使内燃机与从动装置脱开联接。在此不利的是,为了提高内燃机力矩,内燃机被点火并且因此必须向内燃机供应燃料。
发明内容
有鉴于此,本发明的任务是提供一种新型的用于运行混合动力车辆的方法以及一种新型的混合动力车辆控制装置。
根据本发明实现一种用于运行混合动力车辆的方法,该混合动力车辆包括具有内燃机和电机的混合动力驱动装置、连接在内燃机和电机之间的离合器和连接在混合动力驱动装置和从动装置之间的变速器,在混合驱动行驶时在内燃机的被动运转中使内燃机与从动装置脱开联接和停止运转以便过渡到纯电动行驶中,当内燃机在被动运转燃料截断(Schubabschaltung)中不点火地运行时,在维持被动运转燃料截断的情况下通过降低连接在内燃机和电机之间的离合器的传动能力使内燃机与从动装置脱开联接和停止运转。
本发明提出,通过连接在混合动力驱动装置的内燃机和混合动力驱动装置的电机之间的离合器、即通过定义地降低连接在内燃机和电机之间的离合器的传动能力,使混合动力驱动装置的内燃机在被动运转中脱开联接,以便从混合驱动行驶转换为纯电动行驶,在此维持内燃机的被动运转燃料截断,从而无须为了内燃机的脱开联接和停止运转将内燃机点火并且因此无须向内燃机供应燃料。
根据一种有利的扩展方案,闭合的离合器的传动能力大于内燃机在被动运转燃料截断中的阻力矩,从闭合的离合器开始,连接在内燃机和电机之间的离合器按定义的变化曲线打开并且因此其传动能力下降。从一个时刻起连接在内燃机和电机之间的离合器的传动能力等于内燃机在被动运转燃料截断中的阻力矩,从该时刻起,在离合器传动能力进一步下降的同时,由电机在从动装置上提供的力矩这样适配,使得在从动装置上由混合动力驱动装置的内燃机和混合动力驱动装置的电机提供的总力矩等于驾驶员希望力矩。上述措施允许混合动力驱动装置的内燃机在被动运转中特别有利地脱开联接和停止运转。
优选从连接在内燃机和电机之间的离合器的传动能力等于内燃机在被动运转燃料截断中的阻力矩的时刻起,一方面离合器的传动能力斜坡状或者说线性地下降到零并且另一方面由电机在从动装置上提供的力矩这样适配,使得在从动装置上由内燃机和电机提供的总力矩保持大致恒定。该措施对于被动运转中的内燃机的脱开联接及其停止运转尤为有利。
混合动力车辆的根据本发明的控制装置包括具有内燃机和电机的混合动力驱动装置、连接在内燃机和电机之间的离合器和连接在混合动力驱动装置和从动装置之间的变速器,该控制装置在混合驱动行驶时在内燃机的被动运转中为了向纯电动行驶过渡而生成调整信号,以便使内燃机与从动装置脱开联接和停止运转,当内燃机在被动运转燃料截断中不点火地运行时,控制装置这样生成调整信号,使得内燃机能在维持被动运转燃料截断的情况下通过降低连接在内燃机和电机之间的离合器的传动能力与从动装置脱开联接和停止运转。
根据一种有利的扩展方案,该控制装置这样生成用于连接在内燃机和电机之间的离合器的调整信号,使得从离合器传动能力大于内燃机在被动运转燃料截断中的阻力矩的闭合的离合器开始,离合器按定义的变化曲线打开并且因此离合器传动能力下降,并且另外该控制装置这样生成用于电机的调整信号,使得从离合器的传动能力等于内燃机在被动运转燃料截断中的阻力矩的时刻起,在离合器传动能力进一步下降的同时,由电机在从动装置上提供的力矩这样适配,使得在从动装置上由内燃机和电机提供的总力矩等于驾驶员希望力矩。
根据一种有利的扩展方案,该控制装置这样生成用于电机的调整信号,使得从离合器的传动能力等于内燃机在被动运转燃料截断中的阻力矩的时刻起,由电机在从动装置上提供的力矩这样适配,使得在从动装置上由内燃机和电机提供的总力矩保持大致恒定。
根据一种有利的扩展方案,控制装置这样生成用于离合器的调整信号,使得从离合器的传动能力等于内燃机在被动运转燃料截断中的阻力矩的时刻起,离合器的传动能力斜坡状或者说线性地下降到零。
附图说明
本发明优选的扩展方案由从属权利要求和下述说明给出。下面借助附图详细说明本发明的实施例,但本发明不局限于此。附图如下:
图1为混合动力车辆的示例性动力系统示意图;
图2为用于说明本发明方法的曲线图。
具体实施方式
图1示出混合动力车辆的动力系统示意图,其中混合动力车辆包括构造为混合动力驱动装置的驱动总成1,该驱动总成1包括内燃机2和电机3。
在驱动总成1和混合动力车辆的从动装置4之间连接有变速器5。
在驱动总成1的内燃机2和驱动总成的电机3之间连接有离合器6,在离合器6打开时内燃机2与动力系统其余部分脱开联接,在离合器6闭合时,内燃机2耦合到动力系统上。
为了混合动力车辆的运行,混合动力车辆包括控制系统,该控制系统包括至少用于控制和/或调节混合动力驱动装置1的内燃机2的运行的发动机控制装置7,控制系统还包括至少用于控制和/或调节变速器5的运行的变速器控制装置8,并且控制系统还包括至少用于控制和/或调节混合动力驱动装置1的电机3的运行的混合动力控制装置9。
根据图1,发动机控制装置7与内燃机2交换数据,变速器控制装置8与变速器5交换数据,并且混合动力控制装置9与电机3交换数据,并且上述控制装置7、8、9生成用于控制和/或调节和因此运行内燃机2、电机3和变速器5的调整信号。
由图1可见,发动机控制装置7与混合动力控制装置9并且混合动力控制装置9与变速器控制装置8交换数据。
根据图1,混合动力控制装置9也与连接在内燃机2和电机3之间的离合器6交换数据。
混合动力驱动装置1或混合动力车辆可混合驱动地运行,在混合驱动行驶中不仅内燃机2而且电机3在从动装置4上提供驱动力矩。在纯电动行驶时,内燃机2通过离合器6的打开与从动装置4脱开联接,在此仅电机3在从动装置4上提供驱动力矩。
本发明涉及在内燃机2的被动运转运行中从混合驱动行驶向纯电动行驶的转换,为此使内燃机2与从动装置脱开联接和停止运转。
根据本发明,当内燃机2在被动运转燃料截断中不点火地运行时,在维持被动运转燃料截断的情况下通过降低连接在内燃机2和电机3之间的离合器6的传动能力使内燃机2与从动装置4脱开联接和停止运转。
为此,优选混合动力控制装置9生成相应的用于电机3和连接在电机3和内燃机2之间的离合器6的调整信号。下面参考图2的曲线图对此进行详细说明。
在图2中关于时间t一方面示出力矩M的不同曲线并且另一方面示出转速n的不同曲线。图2示出驾驶员希望力矩MFW的力矩曲线、由电机3提供的力矩的力矩曲线MEM、内燃机2力矩的力矩曲线MVM和离合器6的力矩曲线MK。另外还示出内燃机2的转速曲线nVM和电机3的转速曲线nEM。
在时刻t1之前,混合动力车辆或混合动力驱动装置1在混合驱动运行中运行,其中驾驶员希望力矩MFW为负,并且该驾驶员希望力矩MFW在离合器6完全闭合时一方面由内燃机2并且另一方面由电机3共同提供。内燃机2在此在被动运转燃料截断中不点火地运行,从而力矩MVM等于内燃机2的阻力矩。
力矩MK是指能由离合器6传输的力矩,在时刻t1之前,离合器6优选完全闭合,能由离合器6传输的力矩MK在时刻t1之前大于混合动力驱动装置1的内燃机2的阻力矩MVM的绝对值│MVM│。
从时刻t1开始进行从混合驱动行驶向纯电动行驶的转换,为此从时刻t1开始,连接在内燃机2和电机3之间的离合器的传动能力通过力矩MK的减小而下降,在时刻t2,能由离合器6传输的力矩MK等于内燃机2的阻力矩MVM的绝对值│MVM│。从时刻t2起,连接在内燃机2和电机3之间的离合器6的传动能力进一步下降、即根据图2优选线性或者说斜坡状地进行,直至在时刻t3能由离合器6传输的力矩等于零,从而在时刻t3离合器6优选完全打开。
在时刻t2离合器6的传动能力等于内燃机2的阻力矩的绝对值│MVM│、即在该时刻离合器力矩MK的绝对值等于内燃机2的阻力矩MVM的绝对值,从时刻t2起,在连接在内燃机2和电机3之间的离合器6的传动能力进一步下降的同时或者说并行地,由电机3在从动装置4上提供的力矩MEM这样适配,使得在从动装置4上由内燃机2和电机3提供的总力矩等于驾驶员希望力矩MFW,因此在从动装置4上由内燃机2和电机3共同提供的总力矩保持大致恒定和因此不变。
在被动运转燃料截断的内燃机2的被动运转中通过内燃机2脱开联接和停止运转从混合驱动行驶向电动行驶的转换不影响从动装置4。因此可确保舒适地从混合驱动行驶向电动行驶转换,并且在整个方法实施期间维持内燃机2的被动运转燃料截断,以致在整个方法实施期间内燃机2不点火且因此不向内燃机中供应燃料。
附图标记列表
1 驱动总成
2 内燃机
3 电机
4 从动装置
5 变速器
6 离合器
7 发动机控制装置
8 变速器控制装置
9 混合动力控制装置
Claims (8)
1.用于运行混合动力车辆的方法,该混合动力车辆包括具有内燃机(2)和电机(3)的混合动力驱动装置(1)、连接在内燃机(2)和电机(3)之间的离合器(6)和连接在混合动力驱动装置(1)和从动装置(4)之间的变速器(5),在混合驱动行驶时在内燃机(2)的被动运转中使内燃机(2)与从动装置(4)脱开联接和停止运转以便过渡到纯电动行驶中,其特征在于,当内燃机(2)在被动运转燃料截断中不点火地运行时,在维持被动运转燃料截断的情况下通过降低连接在内燃机(2)和电机(3)之间的离合器(6)的传动能力使内燃机(2)与从动装置(4)脱开联接和停止运转。
2.根据权利要求1的方法,其特征在于,闭合的离合器(6)的传动能力大于内燃机(2)在被动运转燃料截断中的阻力矩,从闭合的离合器(6)开始,离合器(6)按定义的变化曲线打开并且因此离合器的传动能力下降,从离合器(6)的传动能力等于内燃机(2)在被动运转燃料截断中的阻力矩的时刻起,在离合器(6)传动能力进一步下降的同时,由电机(3)在从动装置(4)上提供的力矩这样适配,使得在从动装置(4)上由内燃机(2)和电机(3)提供的总力矩等于驾驶员希望力矩。
3.根据权利要求2的方法,其特征在于,从离合器(6)的传动能力等于内燃机(2)在被动运转燃料截断中的阻力矩的时刻起,由电机(3)在从动装置(4)上提供的力矩这样适配,使得在从动装置(4)上由内燃机(2)和电机(3)提供的总力矩保持大致恒定。
4.根据权利要求2或3的方法,其特征在于,从离合器(6)的传动能力等于内燃机(2)在被动运转燃料截断中的阻力矩的时刻起,离合器(6)的传动能力斜坡状或者说线性地下降到零。
5.混合动力车辆的控制装置,该混合动力车辆包括具有内燃机(2)和电机(3)的混合动力驱动装置(1)、连接在内燃机(2)和电机(3)之间的离合器(6)和连接在混合动力驱动装置(1)和从动装置(4)之间的变速器(5),该控制装置在混合驱动行驶时在内燃机(2)的被动运转中为了向纯电动行驶过渡而生成调整信号,以便使内燃机(2)与从动装置(4)脱开联接和停止运转,其特征在于,当内燃机(2)在被动运转燃料截断中不点火地运行时,控制装置这样生成调整信号,使得内燃机(2)能在维持被动运转燃料截断的情况下通过降低连接在内燃机(2)和电机(3)之间的离合器(6)的传动能力与从动装置(4)脱开联接和停止运转。
6.根据权利要求5的控制装置,其特征在于,该控制装置这样生成用于连接在内燃机(2)和电机(3)之间的离合器(6)的调整信号,使得从离合器传动能力大于内燃机(2)在被动运转燃料截断中的阻力矩的闭合的离合器(6)开始,离合器(6)按定义的变化曲线打开并且因此离合器传动能力下降,并且另外该控制装置这样生成用于电机(3)的调整信号,使得从离合器(6)的传动能力等于内燃机(2)在被动运转燃料截断中的阻力矩的时刻起,在离合器(6)传动能力进一步下降的同时,由电机(3)在从动装置(4)上提供的力矩这样适配,使得在从动装置(4)上由内燃机(2)和电机(3)提供的总力矩等于驾驶员希望力矩。
7.根据权利要求6的控制装置,其特征在于,该控制装置这样生成用于电机(3)的调整信号,使得从离合器(6)的传动能力等于内燃机(2)在被动运转燃料截断中的阻力矩的时刻起,由电机(3)在从动装置(4)上提供的力矩这样适配,使得在从动装置(4)上由内燃机(2)和电机(3)提供的总力矩保持大致恒定。
8.根据权利要求6或7的控制装置,其特征在于,控制装置这样生成用于离合器(6)的调整信号,使得从离合器(6)的传动能力等于内燃机(2)在被动运转燃料截断中的阻力矩的时刻起,离合器(6)的传动能力斜坡状或者说线性地下降到零。
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CN111032464B (zh) * | 2017-08-28 | 2023-02-24 | 加特可株式会社 | 车辆的控制装置以及车辆的控制方法 |
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