公开(公告)号：US20140135172A1

公开(公告)日：2014-05-15

申请号：US13676385

申请日：2012-11-14

Applicant: CATERPILLAR INC.

Inventor： Aaron Y. Ho ,  Mark D. Anderson ,  Michael D. Mitchell ,  Cynthia A. Nastav ,  Ming Zhang ,  Derek J. Light

IPC: B60W10/06

CPC classification number: B60W10/06 ,  B60W10/026 ,  B60W30/19 ,  B60W2710/0644 ,  B60Y2200/41 ,  B60Y2200/411 ,  F16H61/14 ,  Y10T477/677

Abstract: A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode while the transmission shifts from a first gear ratio to a second gear ratio. The control system also limits engine speed below a first engine speed limit when a gear ratio setting of the transmission is indicative of the second gear ratio.

Abstract translation: 具有动力总成的机器包括可操作地连接到变矩器和变速器的发动机。 该机器包括控制系统，其接收表示机器的自动模式操作的激活信号，并且在变速器从第一齿轮比变速到第二齿轮比时，使变矩器保持在直接驱动模式。 当变速器的齿轮比设定表示第二档位时，控制系统还将发动机转速限制在第一发动机转速限制以下。

公开(公告)号：US09079575B2

公开(公告)日：2015-07-14

申请号：US13676385

申请日：2012-11-14

Applicant: Caterpillar Inc.

Inventor： Aaron Y. Ho ,  Mark D. Anderson ,  Michael D. Mitchell ,  Cynthia A. Nastav ,  Ming Zhang ,  Derek J. Light

IPC: B60W10/06 ,  B60W10/02 ,  B60W30/19 ,  F16H61/14

CPC classification number: B60W10/06 ,  B60W10/026 ,  B60W30/19 ,  B60W2710/0644 ,  B60Y2200/41 ,  B60Y2200/411 ,  F16H61/14 ,  Y10T477/677

Abstract: A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode while the transmission shifts from a first gear ratio to a second gear ratio. The control system also limits engine speed below a first engine speed limit when a gear ratio setting of the transmission is indicative of the second gear ratio.

Abstract translation: 具有动力总成的机器包括可操作地连接到变矩器和变速器的发动机。 该机器包括控制系统，其接收表示机器的自动模式操作的激活信号，并且在变速器从第一齿轮比变速到第二齿轮比时，使变矩器保持在直接驱动模式。 当变速器的齿轮比设定表示第二档位时，控制系统还将发动机转速限制在第一发动机转速限制以下。