公开(公告)号：US09181995B1

公开(公告)日：2015-11-10

申请号：US14261504

申请日：2014-04-25

申请人： FORD GLOBAL TECHNOLOGIES, LLC

发明人： Sarah Thornton ,  Diana Yanakiev ,  Dimitar Petrov Filev ,  Yan Wang ,  Anuradha Annaswamy ,  Gregory Michael Pietron

IPC分类号： F16D48/02 ,  F16D48/06 ,  F16D25/06

CPC分类号： F16D48/066 ,  F16D25/06 ,  F16D25/0638 ,  F16D2500/3024 ,  F16D2500/3026 ,  F16D2500/5012 ,  F16D2500/70217 ,  F16D2500/70605 ,  F16D2500/70657 ,  F16D2500/7082

摘要： A hydraulically actuated clutch is controlled based on a mathematical model that predicts the position of the clutch piston based on the profile of the commanded pressure over time. During a clutch engagement, a set of delays associated with the preparatory phase of engagement are measured and compared to predicted values. Model parameters are then adaptively adjusted based on the differences between the measured and predicted delays and on an estimate of the sensitivities between model parameters and the delays. Subsequent engagements are controlled based on the updated mathematical model to reduce the delays. Changes in the measured delays following adaptation of the model parameters are utilized to update the estimate of the sensitivities.

摘要翻译： 基于数学模型控制液压致动离合器，该数学模型基于所指示的压力随时间的轮廓来预测离合器活塞的位置。 在离合器接合期间，测量与接合的准备阶段相关联的一组延迟并与预测值进行比较。 然后基于测量和预测延迟之间的差异以及模型参数与延迟之间的敏感度的估计来自适应地调整模型参数。 基于更新的数学模型来控制后续的接合以减少延迟。 利用模型参数调整后的测量延迟的变化来更新灵敏度的估计。