Study on The Method of Suppressing Cycle Power during Up-shift Process for Wet Dual Clutch Transmission

Qu Siyu; Chen Man; Liu Jikai; Gao Song

doi:10.16578/j.issn.1004.2539.2016.10.011

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Study on The Method of Suppressing Cycle Power during Up-shift Process for Wet Dual Clutch Transmission

更新时间：2022-10-20

- Study on The Method of Suppressing Cycle Power during Up-shift Process for Wet Dual Clutch Transmission
- Vol. 40, Issue 10, Pages: 54-63(2016)
- 作者机构：
  
  1. 北京理工大学车辆传动国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2016.10.011
  CLC：
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[1]曲思宇,陈漫,刘继凯,高耸.双湿式离合变速箱升挡过程循环功率抑制方法探究[J].机械传动,2016,40(10):54-63+69.

Qu Siyu, Chen Man, Liu Jikai, et al. Study on The Method of Suppressing Cycle Power during Up-shift Process for Wet Dual Clutch Transmission. [J]. 40(10):54-63(2016)
[1]曲思宇,陈漫,刘继凯,高耸.双湿式离合变速箱升挡过程循环功率抑制方法探究[J].机械传动,2016,40(10):54-63+69. DOI： 10.16578/j.issn.1004.2539.2016.10.011.

Qu Siyu, Chen Man, Liu Jikai, et al. Study on The Method of Suppressing Cycle Power during Up-shift Process for Wet Dual Clutch Transmission. [J]. 40(10):54-63(2016) DOI： 10.16578/j.issn.1004.2539.2016.10.011.

摘要

双湿式离合器换挡过程易产生循环功率,严重影响离合器的使用寿命,降低换挡品质。针对这一现象,在双离合变速箱升挡过程中,对其进行动力学分析,建立各阶段的动力学方程,研究循环功率产生的机理,并深入分析在升挡过程中,油门开度以及油压变化与循环功率间关系,提出减少循环功率的解决方案。采用PID控制油门开度以主动调节发动机转速,并针对离合器的分离和结合,运用模糊控制理论,以驾驶员意图、发动机转速偏离目标转速的程度为输入,高挡充油油压上升速率作为输出,设计升挡控制策略。仿真结果表明,所提方法可有效抑制换挡过程循环功率的产生,大大减少滑摩功,降低冲击度,优化了换挡品质。

Abstract

The cycle power,which is prone to appear during shifting process for a wet dual clutch transmission,the life of the clutch is severely affected and the shifting quality is decreased. In response to this phenomenon,the up- shift dynamics equations are derived according to the detailed analysis of up- shifts and the study on the cause of cycle power,during up- shift process of a DCT. Furthermore,the relationship between throttle position,changes in oil pressure and cycle power in the up- shift process is analyzed. The solutions to suppress the cycle power is proposed. A PID method is used to adjust the engine speed by controlling the throttle position. On the basis of disengage clutch and engage clutch,using the fuzzy control theory,taking the driver intention,the deviation of engine speed and target speed as inputs and taking the rise rate of oil- filled pressure as outputs,the up- shift control strategy is designed. It is concluded that the strategy can reduce cycle power effectively and shorten slip energy,jerk. The shifting quality is optimized.

关键词

双湿式离合器变速箱升挡控制策略循环功率模糊控制

Keywords

Wet dual clutch transmissionUp-shift control strategyCycle powerFuzzy control

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