公开(公告)号：US20110251766A1

公开(公告)日：2011-10-13

申请号：US12877332

申请日：2010-09-08

Applicant: Mark A. Schang ,  Matthew D. Whitton

Inventor： Mark A. Schang ,  Matthew D. Whitton

IPC: B60W10/02 ,  F16D48/06

CPC classification number: F16H61/061 ,  F16H61/686 ,  F16H2059/385 ,  F16H2059/425 ,  Y10T477/70 ,  Y10T477/73

Abstract: A control system for an automatic transmission coupled to an engine by a torque converter includes a torque module and a first clutch control module. The torque module determines an input torque to the transmission based on an output torque of the engine. The first clutch control module adjusts an acceleration of a turbine of the torque converter during a down shift of the transmission based on the input torque. The first clutch control module adjusts the acceleration of the turbine by adjusting a first pressure of fluid supplied to an off-going clutch of the transmission based on the input torque. The first clutch control module adjusts the first pressure based on a mathematical model that relates a torque capacity of the off-going clutch, the input torque, and the acceleration. A method is also provided.

Abstract translation: 用于通过变矩器耦合到发动机的自动变速器的控制系统包括转矩模块和第一离合器控制模块。 转矩模块基于发动机的输出转矩来确定变速器的输入转矩。 第一离合器控制模块基于输入转矩在变速器的下降换档期间调节变矩器的涡轮机的加速度。 第一离合器控制模块通过基于输入转矩调节供应给变速器的脱离离合器的流体的第一压力来调节涡轮机的加速度。 第一离合器控制模块基于关于脱离离合器的转矩容量，输入转矩和加速度的数学模型来调节第一压力。 还提供了一种方法。

公开(公告)号：US20110183809A1

公开(公告)日：2011-07-28

申请号：US12692043

申请日：2010-01-22

Applicant: Shashikanth Rangaraju ,  Robert L. Williams ,  Matthew D. Whitton

Inventor： Shashikanth Rangaraju ,  Robert L. Williams ,  Matthew D. Whitton

IPC: F16H59/48

CPC classification number: F16H61/061 ,  F16H2306/24 ,  Y10T477/692 ,  Y10T477/69364

Abstract: A transmission shift control system includes a transmission shift control module that executes an upshift or a closed-throttle downshift, a shift stage determination module, and a clutch control module. The stage determination module determines a stage of the upshift or the closed throttle downshift when a downshift is requested. The clutch control module determines a downshift type based on the stage of the upshift or the closed throttle downshift and selectively executes a downshift before the upshift or the closed throttle downshift is completed.

Abstract translation: 变速器变速控制系统包括执行升档或闭阀减速换档的换挡控制模块，变速级确定模块和离合器控制模块。 当请求降档时，舞台确定模块确定升档阶段或封闭节气门低档档。 离合器控制模块基于升档阶段或闭合的节气门低档换档来确定降档类型，并且在升档或关闭的节气门低档完成之前选择性地执行降档。

公开(公告)号：US07056263B2

公开(公告)日：2006-06-06

申请号：US10317554

申请日：2002-12-12

Applicant: Matthew D. Whitton

Inventor： Matthew D. Whitton

IPC: F16H61/00

CPC classification number: F16H61/061 ,  Y10T477/6895 ,  Y10T477/6937 ,  Y10T477/69383

Abstract: A transmission system includes a first clutch, a second clutch, and a controller. The controller communicates with the first and second clutches and commands a gear shift. The controller calculates a torque phase time for the gear shift and determines a desired torque trajectory within said torque phase time. The controller determines on-coming torque values for the second clutch and off-going torque values for the first clutch to achieve the desired torque trajectory within the torque phase time. The controller calculates an on-coming clutch pressure based on the on-coming torque value, and an off-going clutch pressure based on the off-going torque value. The controller delays actuation of the first and second clutches to compensate for hydraulic delays.

Abstract translation: 传动系统包括第一离合器，第二离合器和控制器。 控制器与第一和第二离合器通信并进行换档。 控制器计算换档的扭矩相位时间，并确定所述扭矩相位时间内的期望转矩轨迹。 控制器确定用于第二离合器的接通扭矩值和用于第一离合器的过渡扭矩值，以在扭矩相位时间内实现期望的扭矩轨迹。 控制器基于接通转矩值计算出来的离合器压力和基于脱离转矩值的离合器离合器压力。 控制器延迟第一和第二离合器的致动以补偿液压延迟。