湿式双离合器微滑摩控制关键问题研究*

doi:10.19562/j.chinasae.qcgc.2018.010.011

汽车工程 ›› 2018, Vol. 40 ›› Issue (10): 1192-1199.doi: 10.19562/j.chinasae.qcgc.2018.010.011

湿式双离合器微滑摩控制关键问题研究^*

鲍伟, 葛建军, 肖旭, 曹将

合肥工业大学电气与自动化工程学院,合肥 230009

收稿日期:2017-09-26 出版日期:2018-10-25 发布日期:2018-10-25
通讯作者: 鲍伟,副教授,E-mail:baowei_hf@163.com。
基金资助:
*国家自然科学基金(51405122)和中央高校基本科研业务费专项资金(JZ2016YYPY0035)资助。

A Study on Key Issues of Micro-Slip Control for Wet Dual-clutch

Bao Wei, Ge Jianjun, Xiao Xu, Cao Jiang

School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009

Received:2017-09-26 Online:2018-10-25 Published:2018-10-25

摘要/Abstract

摘要： 为有效提高湿式双离合器车辆行驶过程的驾驶品质,对湿式双离合器微滑摩控制的关键问题进行研究。首先分析了湿式双离合器微滑摩行为对离合器阻尼的影响,并建立了微滑摩控制被控对象的数学模型。在此基础上提出电流和微滑摩双闭环的离合器微滑摩控制系统结构,探讨了电流控制器和微滑摩控制器的设计方法。接着通过实车试验,验证了电流、微滑摩双闭环控制方法的精确性,以及微滑摩控制对减弱发动机侧传递振动的有效性。最后通过离合器的冷却试验,获得离合器冷却油的期望流量和出油温度,据此确定了不同发动机转速和变速器油温下的离合器最佳微滑摩量。本研究结果表明,通过微滑摩控制来提高湿式双离合器车辆的驾驶品质,是一种切实可行的方法。

关键词: 湿式双离合器, 微滑摩, 闭环控制, 驾驶品质

Abstract: In order to enhance the driving quality of wet dual-clutch vehicle, the key issues of micro-slip control (MSC) of wet dual-clutch are studied. Firstly, the effects of micro-slip on clutch damping are analyzed, and a mathematical model for the controlled object is created. On this basis, a current/micro-slip double closed-loop structure of clutch MSC system is proposed and the design methods of current controller and micro-slip controller are investigated. Then real vehicle test is conducted to verify the accuracy of current/micro-slip double closed-loop control scheme and the effectiveness of MSC in attenuating the vibration transferred from engine. Finally clutch cooling test is performed to get the desired flow rate and outlet temperature of clutch coolant, based on which the optimal amounts of clutch micro-slip under different engine speeds and transmission fluid temperatures are determined. The results of the study indicate that it is a practical and feasible approach by applying MSC to enhance the driving quality of wet dual-clutch vehicle

Key words: wet dual-clutch, micro-slip, closed-loop control, driving quality

鲍伟, 葛建军, 肖旭, 曹将. 湿式双离合器微滑摩控制关键问题研究^*[J]. 汽车工程, 2018, 40(10): 1192-1199.

Bao Wei, Ge Jianjun, Xiao Xu, Cao Jiang. A Study on Key Issues of Micro-Slip Control for Wet Dual-clutch[J]. , 2018, 40(10): 1192-1199.

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湿式双离合器微滑摩控制关键问题研究^*

A Study on Key Issues of Micro-Slip Control for Wet Dual-clutch

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