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首页> 外文会议>Transmission and driveline, 2010 >Modeling of a Wedge Clutch in an Automatic Transmission
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Modeling of a Wedge Clutch in an Automatic Transmission

机译：自动变速器中的楔形离合器建模

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摘要

A wedge clutch with a wedge ramp transfers the tangential force to an axial force. It has unique features of self-reinforcement and small actuation force, and can be packaged into tight spaces. This wedge clutch can be developed to apply to an automatic transmission (AT) or a hybrid transmission. This paper focuses on the simulation of one wedge clutch in AT during shifting. A mathematical formula is given to describe the self-reinforcement principle of the wedge. The dynamic model of a motor actuated wedge clutch during shifting is built to simulate and develop the control algorithm. The model is implemented in Matlab/Simulink, which includes a DC motor model, a dynamic model of the wedge mechanism and clutch pack, and a driveline model of AT which can simulate a gear shift process. The key characteristics such as variation of normal pressure, response time and energy consumption are evaluated, and the results show a favorable comparison with the traditional hydraulic clutch.
机译：具有楔形坡道的楔形离合器将切向力转换为轴向力。它具有自增强和小的驱动力的独特功能，并且可以包装在狭窄的空间中。该楔形离合器可以开发成适用于自动变速器（AT）或混合动力变速器。本文着重于AT变速过程中一个楔形离合器的仿真。给出了描述楔子自增强原理的数学公式。建立了换挡过程中电动楔块离合器的动力学模型，以仿真和开发控制算法。该模型在Matlab / Simulink中实现，其中包括一个直流电动机模型，一个楔形机构和离合器组件的动态模型以及一个可以模拟变速过程的AT传动系模型。对关键特性如常压变化，响应时间和能耗进行了评估，结果与传统的液压离合器相比具有良好的对比性。

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