CN103790999A - 估算车辆的干式离合器的传动扭矩的方法 - Google Patents

估算车辆的干式离合器的传动扭矩的方法 Download PDF

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CN103790999A
CN103790999A CN201310163575.0A CN201310163575A CN103790999A CN 103790999 A CN103790999 A CN 103790999A CN 201310163575 A CN201310163575 A CN 201310163575A CN 103790999 A CN103790999 A CN 103790999A
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driving torque
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尹永珉
李昭咏
曺圣铉
李浩荣
金正喆
白承三
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Hyundai Motor Co
Kia Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/10System to be controlled
    • F16D2500/108Gear
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    • F16D2500/1083Automated manual transmission
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/10System to be controlled
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    • F16D2500/1081Actuation type
    • F16D2500/1085Automatic transmission
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/304Signal inputs from the clutch
    • F16D2500/30401On-off signal indicating the engage or disengaged position of the clutch
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
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    • F16D2500/30406Clutch slip
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16D2500/00External control of clutches by electric or electronic means
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    • F16D2500/3065Torque of the engine
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    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/30Signal inputs
    • F16D2500/314Signal inputs from the user
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    • F16D2500/31413Clutch pedal position
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    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/70Details about the implementation of the control system
    • F16D2500/702Look-up tables
    • F16D2500/70205Clutch actuator
    • F16D2500/70211Force
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/70Details about the implementation of the control system
    • F16D2500/702Look-up tables
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    • F16D2500/70235Displacement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/70Details about the implementation of the control system
    • F16D2500/702Look-up tables
    • F16D2500/70247Engine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
    • F16D2500/70Details about the implementation of the control system
    • F16D2500/702Look-up tables
    • F16D2500/70252Clutch torque
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00External control of clutches by electric or electronic means
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  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
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Abstract

一种估算车辆的干式离合器的传动扭矩的方法。估算车辆的干式离合器的传动扭矩的方法可以即使在车辆行驶期间,适当地估算在相对于干式离合器的致动器冲程的传动扭矩的特性上的变化,以便更适当地控制干式离合器。在估算干式离合器的传动扭矩的方法中,释放离合器以便发生所述离合器的滑动。如果所述离合器的滑动已经发生,则使所述离合器的滑动保持一致。如果所述离合器的滑动保持一致,则从保持一致的滑动状态下的致动器的冲程与发动机的扭矩之间的关系来确定所述离合器的致动器的冲程与所述离合器的传动扭矩之间的关系。

Description

估算车辆的干式离合器的传动扭矩的方法
相关申请的交叉引用
本申请要求2012年10月30日提交的韩国专利申请第10-2012-0121630号的优先权,该申请的全部内容结合于此用于通过该引用的所有目的。
技术领域
本发明总体上涉及用于对设置在车辆的发动机与变速器之间的干式离合器的传动扭矩进行估算的技术,更具体而言,涉及用于对致动器的致动冲程与用于自动变速器(比如自动手动变速器(AMT))的干式离合器的传动扭矩之间的关系进行精确估算,从而能够应用致动器适当地控制干式离合器的技术。
背景技术
自动手动变速器,比如AMT或双离合变速器(DCT),是一种用于自动地控制手动变速器机构的系统,并且不同于应用扭矩转换器和湿式多片离合器的典型的自动变速器(A/T),自动手动变速器配置为将发动机的扭矩传送到应用干式离合器的齿轮换挡机构(gear-shiftmechanism)。
干式离合器具有这样的特性,由于多个因素而很大地改变其传动扭矩,比如数个组件的每个的公差、由耐久性的进展引起的磨损程度、由高温度引起的热变形,以及盘片的摩擦系数上的变化,因此使得在车辆行驶期间传送到干式离合器的扭矩难以估算。
通过致动器控制干式离合器,且通常由扭矩转速曲线(Torque-Speed(T-S)curve)来控制该致动器,该扭矩转速曲线指示了相对于致动器的冲程的干式离合器传动扭矩的变化。如上所述,因为干式离合器的传动扭矩由于各种因素而变化很大,所以当在干式离合器的控制期间既不能感测也不能精确地反映传动扭矩的变化时,可能发生干式离合器的过度滑动或可能在干式离合器中引起震动,因此需要用于实时地估算干式离合器的扭矩特性的算法。
公开于该背景技术部分的信息仅仅旨在加深对本发明的总体背景技术的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。
发明内容
相应地,已提出并一直考虑现有技术中出现的上述问题的本发明。
本发明的各个方面提供了一种用于估算车辆的干式离合器的传动扭矩的方法,所述方法即使在车辆行驶期间,也能够适当地估算在相对于干式离合器的致动器冲程的传动扭矩的特性上的变化,以便更适当地控制干式离合器,从而通过防止齿轮换档震动而获得柔和的齿轮换挡感觉,并且通过防止干式离合器的过度滑动来保证干式离合器的耐久性。
本发明的各个方面提供了一种用于估算干式离合器的传动扭矩的方法,包括a)释放离合器以便发生所述离合器的滑动;b)如果由于a)的执行使得所述离合器的滑动已经发生,则使所述离合器的滑动保持一致;以及c)如果在b)使所述离合器的滑动保持一致,则从保持一致的滑动状态下的致动器的冲程与发动机的扭矩之间的关系,来确定所述离合器的致动器的冲程与所述离合器的传动扭矩之间的关系。
通过纳入本文的附图以及随后与附图一起用于说明本发明的某些原理的具体实施方式,本发明的方法和装置所具有的其它特征和优点将更为具体地变得清楚或得以阐明。
附图说明
图1为显示对相对于致动器的冲程的干式离合器的传动扭矩的变化进行指示的扭矩转速(T-S)曲线的实例的视图。
图2为显示根据本发明的对车辆的干式离合器的传动扭矩进行估算的示例性方法的流程图。
图3为显示根据本发明的对车辆的干式离合器的传动扭矩进行估算的示例性方法到DCT的应用的视图,其中通过曲线图来表示发动机的扭矩和转速,离合器1和离合器2随着时间的变化。
具体实施方式
下面将详细说明本发明的各个实施方案,在附图中和以下的描述中示出了这些实施方案的实例。虽然本发明将与示例性实施方案相组合进行描述,但是应当了解,本说明书并非旨在将本发明限制为那些示例性实施方案。相反,本发明旨在不但覆盖这些示例性实施方案,而且覆盖可以被包括在由所附权利要求所限定的本发明的精神和范围之内的各种替换、修改、等效形式以及其它实施方案。
参考图2,根据本发明的对车辆的干式离合器的传动扭矩进行估算的方法的各种实施方案包括:滑动引导步骤S20、滑动保持步骤S30,以及传动扭矩确定步骤S40,滑动引导步骤S20释放干式离合器以使干式离合器的滑动发生;如果由于滑动引导步骤S20的执行使离合器的滑动已经发生,则滑动保持步骤S30使离合器的滑动保持一致;如果在滑动保持步骤S30使离合器的滑动保持一致,则传动扭矩确定步骤S40从在滑动保持一致的状态下的离合器的致动器的冲程与发动机的扭矩之间的关系来确定致动器的冲程与离合器的传动扭矩之间的关系。
也即,如果通过由在从锁定状态的方向上操纵离合器来执行滑动引导步骤S20使离合器的滑动发生,则控制离合器的致动器以使离合器的滑动量得以保持在一致的水平上,其中离合器在该锁定状态中接合到离合器释放的状态。应用在离合器的滑动保持一致时获得的发动机扭矩与离合器的传动扭矩相同的原理,在传动扭矩确定步骤S40获得了相对于致动器的冲程的离合器的传动扭矩。应用离合器的传动扭矩来适当地改变并更新当前的扭矩转速(T-S)曲线。此后,应用更新后的T-S曲线来控制离合器的致动器,因此能够更精确地控制离合器的传动扭矩。因此,防止了齿轮换档震动的发生,并且还防止了不必要的离合器的滑动,从而改进了齿轮换档的感觉并提高了离合器的耐久性。
在滑动引导步骤S20之前,执行确定离合器是否接合的离合器锁定确定步骤S10,然后仅在离合器接合并锁定时执行滑动引导步骤S20。
也即,如图3所示,从属于离合器1的齿轮换挡步骤到属于离合器2的齿轮换挡步骤来完成齿轮换挡,从而在离合器2的锁定状态下开始滑动引导步骤S20。
在滑动保持步骤S30,可以从稳定的电力传动的观点,在低于100rpm的一分钟的滑动水平上保持该滑动。
在传动扭矩确定步骤S40,考虑到在离合器的滑动保持一致时,指示了发动机扭矩和离合器的传动扭矩彼此相同的关系,在离合器的滑动保持一致时的相对于致动器冲程的离合器的传动扭矩被确定为在滑动保持一致时的发动机扭矩。
也即,如果离合器的滑动保持一致,则可以认为在此时发动机扭矩和离合器的传动扭矩彼此相同。因此,通过应用该关系,将离合器的传动扭矩确定为发动机扭矩。
当然,在传输扭矩确定步骤S40之后,执行更新步骤S50,更新步骤S50将在传输扭矩确定步骤S40确定的传动扭矩与致动器冲程之间的关系合并到T-S曲线中。此后,基于已更新的T-S曲线更精确地控制致动器的冲程,从而能够改进齿轮换档感觉并且能够保证离合器的耐久性。
如上所述,本发明的优点在于,其能够即使在车辆行驶期间,对相对于干式离合器的致动器冲程的传动扭矩的特性上的变化适当地进行估算,以便更适当地控制干式离合器,从而通过防止齿轮换档震动而获得柔和的齿轮换挡感觉,并且通过防止干式离合器的过度滑动来保证干式离合器的耐久性。
前面对本发明具体示例性实施方案所呈现的描述是出于说明和描述的目的。前面的描述并不想要成为毫无遗漏的,也不是想要把本发明限制为所公开的精确形式,显然,根据上述教导很多改变和变化都是可能的。选择示例性实施方案并进行描述是为了解释本发明的特定原理及其实际应用,从而使得本领域的其它技术人员能够实现并利用本发明的各种示例性实施方案及其不同选择形式和修改形式。本发明的范围意在由所附权利要求书及其等价形式所限定。

Claims (5)

1.一种估算干式离合器的传动扭矩的方法,包括:
a)释放离合器,以便发生所述离合器的滑动;
b)如果由于a)的执行使得所述离合器的滑动已经发生,则使所述离合器的滑动保持一致;以及
c)如果在b)使所述离合器的滑动保持一致,则从保持一致的滑动状态下的致动器的冲程与发动机的扭矩之间的关系,来确定所述离合器的致动器的冲程与所述离合器的传动扭矩之间的关系。
2.根据权利要求1所述的估算干式离合器的传动扭矩的方法,其中b)配置为在低于100rpm的一分钟的滑动水平上保持所述滑动一致。
3.根据权利要求1所述的估算干式离合器的传动扭矩的方法,其中c)配置为,考虑到在所述离合器的滑动保持一致时,指示所述发动机的扭矩和所述离合器的传动扭矩彼此相同的关系,将在所述离合器的滑动保持一致时的相对于所述致动器的冲程的所述离合器的传动扭矩确定为在所述离合器的滑动保持一致时的所述发动机的扭矩。
4.根据权利要求1所述的估算干式离合器的传动扭矩的方法,进一步包括,在c)之后,d)将在c)确定的所述传动扭矩与所述致动器的冲程之间的关系合并到扭矩转速T-S曲线中。
5.根据权利要求1所述的估算干式离合器的传动扭矩的方法,进一步包括,在a)之前,e)确定所述离合器是否接合,
其中,仅在确定所述离合器接合且锁定时执行a)。
CN201310163575.0A 2012-10-30 2013-05-07 估算车辆的干式离合器的传动扭矩的方法 Active CN103790999B (zh)

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CN106286640A (zh) * 2015-06-26 2017-01-04 现代自动车株式会社 用于控制车辆离合器的装置和方法
CN113251086A (zh) * 2021-05-31 2021-08-13 重庆理工大学 一种基于扭矩补偿的双离合自动变速器最优起步控制方法

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CN105317993A (zh) * 2014-07-04 2016-02-10 现代自动车株式会社 用于车辆的干式离合器控制方法
CN105317993B (zh) * 2014-07-04 2018-06-08 现代自动车株式会社 用于车辆的干式离合器控制方法
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CN113251086A (zh) * 2021-05-31 2021-08-13 重庆理工大学 一种基于扭矩补偿的双离合自动变速器最优起步控制方法
CN113251086B (zh) * 2021-05-31 2022-05-27 重庆理工大学 一种基于扭矩补偿的双离合自动变速器最优起步控制方法

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DE102013104079A1 (de) 2014-04-30
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US20140121924A1 (en) 2014-05-01

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