公开(公告)号：US09242629B2

公开(公告)日：2016-01-26

申请号：US13864307

申请日：2013-04-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael William Roblin ,  Kristopher J. Kokko ,  Tony T. Hoang ,  Brian L Spohn ,  Min K. Kim

IPC: B60W10/02 ,  B60W10/06 ,  B60W10/115 ,  B60W20/00 ,  F16H61/06

CPC classification number: B60W10/02 ,  B60K6/485 ,  B60W10/06 ,  B60W10/11 ,  B60W10/115 ,  B60W20/00 ,  B60W2510/1015 ,  B60W2710/1083 ,  B60Y2300/49 ,  F16D48/08 ,  F16D2500/30406 ,  F16D2500/30816 ,  F16D2500/3166 ,  F16D2500/5014 ,  F16D2500/50236 ,  F16D2500/70406 ,  F16D2500/70426 ,  F16H2061/062 ,  Y02T10/6226 ,  Y10T477/6425

Abstract: Method to control a clutch device within a transmission selectively coupling an internal combustion engine to a driveline includes controlling slip of the clutch device in response to an engine autostart event. Controlling slip includes adjusting a commanded fill pressure to the clutch device to a first predetermined magnitude that exceeds a pressure threshold until the clutch device is filled, decreasing the commanded fill pressure from the first predetermined magnitude to a second predetermined magnitude below the pressure threshold, and adjusting the commanded fill pressure in accordance with a first ramping profile and in accordance with a subsequent second ramping profile when a transmission input speed achieves a desired first transmission input speed.

Abstract translation: 在选择性地将内燃机连接到传动系的变速器内控制离合器装置的方法包括响应于发动机自动启动事件来控制离合器装置的滑动。 控制滑动包括将指令的填充压力调整到离合器装置到达超过压力阈值的第一预定大小，直到离合器装置被填充，将指令的填充压力从第一预定大小减小到低于压力阈值的第二预定量级，以及 当传输输入速度达到期望的第一传输输入速度时，根据第一斜坡轮廓调整指令的填充压力，并且根据随后的第二斜坡轮廓调整指令的填充压力。

公开(公告)号：US08942899B1

公开(公告)日：2015-01-27

申请号：US13973128

申请日：2013-08-22

Applicant: GM Global Technology Operations LLC

Inventor： Brian L. Spohn ,  Michael William Roblin

IPC: G06F7/00 ,  G06F17/00 ,  G06F19/00 ,  B60W10/103 ,  B60W10/04

CPC classification number: B60W10/06 ,  B60W10/10 ,  B60W10/30 ,  B60W30/18018 ,  B60W2510/107 ,  B60W2510/108 ,  B60W2710/0666 ,  B60W2710/0672 ,  B60W2710/082 ,  B60W2710/1083

Abstract: A powertrain system includes an internal combustion engine rotatably coupled via an input member to a transmission. The transmission has a hydraulic circuit including a hydraulic fluid pump directly mechanically coupled to the input member. A computer-implemented method for operating the powertrain system includes, in response to a command to execute an engine autostop maneuver, determining an engine speed ramping profile to achieve a desired stopped engine position. Hydraulic pressure in the hydraulic circuit is controlled in response to the engine speed ramping profile and engine speed during said engine autostop maneuver.

Abstract translation: 动力系统包括经由输入构件可旋转地连接到变速器的内燃机。 变速器具有包括直接机械地联接到输入构件的液压泵的液压回路。 用于操作动力系统的计算机实现的方法包括响应于执行发动机自动停止操纵的命令，确定发动机转速斜坡轮廓以实现期望的停止的发动机位置。 在所述发动机自动停机操作期间，液压回路中的液压被响应于发动机转速斜坡曲线和发动机转速来控制。

公开(公告)号：US20150285202A1

公开(公告)日：2015-10-08

申请号：US14242958

申请日：2014-04-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brian L. Spohn ,  Michael William Roblin ,  Paul S. Lombardo

IPC: F02N11/08

CPC classification number: F02N11/0814 ,  F02B23/104 ,  F02D17/04 ,  F02D41/0002 ,  F02D41/042 ,  F02D41/123 ,  F02D2041/001 ,  F02D2041/0095 ,  F02M35/10222 ,  F02N19/005 ,  F02N2019/008 ,  Y02T10/42 ,  Y02T10/48

Abstract: An internal combustion engine is configured to execute autostop and autostart routines. The engine is controlled during execution of the autostop routine to decrease quantity of combustibles in cylinder charges and increase dilution of the cylinder charges with the engine operating in a fuel cutoff mode and to achieve a stopped engine position that minimizes likelihood of auto-ignition during a subsequent autostart event.

Abstract translation: 内燃机被配置为执行自动停止和自动启动程序。 发动机在执行自动停止程序期间被控制，以减少汽缸充电中的可燃物的量，并且增加气缸充电量与在燃料切断模式下运行的发动机的稀释度，并且实现停止的发动机位置，以使得在一段时间内使自动点火的可能性最小化 随后的自动启动事件。