| P2混动自动变速器的离合器自适应控制 |
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| 引用本文： | 郭伟,王书翰,徐向阳,刘献栋,范述鑫.P2混动自动变速器的离合器自适应控制[J].中国公路学报,2019,32(3):173-181,190. |
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| 作者姓名： | 郭伟 王书翰 徐向阳 刘献栋 范述鑫 |
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| 作者单位： | 1. 青岛大学 机电工程学院, 山东 青岛 266000;
2. 北京航空航天大学 交通科学与工程学院, 北京 100191;
3. 盛瑞传动股份有限公司, 山东 潍坊 261000 |
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| 基金项目： | 山东省重大创新工程项目（2017CXGC0508） |
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| 摘 要： | 为了解决混合动力系统动力耦合的响应性和舒适性问题,建立混动离合器C0起动发动机过程和并联动力输出模式下的功率流模型。对C0起动发动机的控制过程进行仿真分析,针对C0的起动扭矩和电机的输出扭矩在时间和空间上的匹配问题,提出以换挡离合器的滑摩控制来进行缓冲的策略。为了实现稳定精确的发动机起动控制,消除各自的扭矩控制、液压系统特性的误差,提出C0离合器起动发动机的自适应控制和B1离合器滑摩自适应控制,以换挡离合器滑差和发动机转速的超调量为监控对象,对C0离合器各阶段压力控制参数进行自适应调整,以优化发动机起动过程。研究结果表明:通过换挡离合器的滑摩控制可以很好地解决C0离合器扭矩和电机扭矩的匹配问题,即使在换挡过程中对发动机起动也能保证良好的舒适性,并控制过程时间在1.5 s内;在整车试验过程中,通过对C0压力的自适应调整,发动机转速的超调和起动冲击问题均可以得到有效解决。
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| 关 键 词： | 汽车工程 发动机起动 自适应 蠕行起步 离合器控制 |
| 收稿时间： | 2018-01-15 |
P2 Hybrid Transmission Clutch Adaption Control |
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| GUO Wei,WANG Shu-han,XU Xiang-yang,LIU Xian-dong,FAN Shu-xin.P2 Hybrid Transmission Clutch Adaption Control[J].China Journal of Highway and Transport,2019,32(3):173-181,190. |
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| Authors: | GUO Wei WANG Shu-han XU Xiang-yang LIU Xian-dong FAN Shu-xin |
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| Affiliation: | 1. School of Electromechanical Engineering, Qingdao University, Qingdao 266000, Shandong, China;
2. School of Transportation Science and Engineering, Beihang University, Beijing 100191, China;
3. Shengrui Transmission Corporate Limited, Weifang 261000, Shandong, China |
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| Abstract: | To solve the responsiveness and comfort issues of coupling in a hybrid power system, the power flow model, which is used to simulate the engine starting process by the C0 hybrid clutch, and the parallel mode power output process were established. Through a simulation analysis of the C0 clutch engine starting control process, a shift clutch slip control strategy is proposed to solve the matching problem between the C0 clutch starting torque and the e-motor torque. To realize stable and accurate engine starting control and eliminate the errors from the independent part torque control and the hydraulic system, adaptive control of both the C0 clutch engine starting process and B1 clutch slipping is proposed. The C0 clutch pressure control parameters were adjusted adaptively at different stages to optimize the engine starting process by monitoring the slip of the shifting clutch and the overshoot of the engine speed. The results show that slip control of the shift clutch can solve the matching issues between the C0 clutch torque and the e-motor torque. The engine starting process can be completed in 1.5 s while ensuring the comfort. In the vehicle test process, engine speed overshoot and engine starting shock can be effectively solved by using C0 clutch adaptive control. |
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| Keywords: | automotive engineering engine start adaption creep launch clutch control |
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