In order to improve shift characteristics of an automatic transmission (AT), it is necessary to control and optimize the hydraulic pressure profile of a clutch. More than 8 speed ATs have been developed recently; thus, considerable time and human resource are required to calibrate the parameters. Herein, we propose a model-based automatic calibration method of clutch hydraulic pressure for an AT. The automated calibration method proposed in this study aims to develop a process that can automatically perform the base tuning of clutch control parameters for shift control, which is performed by experts now at the stage of transmission development. The proposed calibration method consists of a simulation model including an AT, analysis algorithm for vehicle simulation, and automated calibration algorithm based on an optimization process, in which iterative simulations and analysis processes are conducted. This study focuses on the power-on shift, and the simulation results show that the base mapping of the hydraulic pressure profile of a clutch can be successfully and effectively performed.

为了改善自动变速器（AT）的变速特性，必须控制和优化离合器的液压曲线。最近已经开发了8种以上的速度AT。因此，需要大量的时间和人力来校准参数。在此，我们提出了一种基于模型的AT离合器液压自动校准方法。本研究中提出的自动校准方法旨在开发一种能够自动执行用于变速控制的离合器控制参数的基本调整的过程，该过程现在由专家在变速箱开发阶段执行。提出的标定方法包括一个包含AT的仿真模型，用于车辆仿真的分析算法以及基于优化过程的自动标定算法，在其中进行迭代模拟和分析过程。该研究集中于动力换挡，仿真结果表明，离合器液压曲线的基本映射可以成功，有效地执行。