公开(公告)号：US09212743B2

公开(公告)日：2015-12-15

申请号：US13709801

申请日：2012-12-10

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Xie ,  Vijay A. Neelakantan

IPC: F16H61/664

CPC classification number: F16H61/6649 ,  F16H61/664 ,  F16H61/6646 ,  F16H61/6648

Abstract: A speed ratio containment process limits the speed ratio of a variator for a CVT for a motor vehicle when rolling backward by commanding a speed ratio that is higher than the actual speed ratio in an overdrive direction. Accordingly, the actual speed ratio moves to a lowest limit, which provides maximum torque when a driver of the motor vehicle steps on the accelerator pedal to resume forward motion of the motor vehicle.

Abstract translation: 速比保持过程通过指定在过驱动方向上的实际速比比高的速比来限制机动车辆的CVT的变速器的变速比。 因此，实际变速比移动到最低限度，当驾驶员踏上加速器踏板以恢复机动车辆的向前运动时，其提供最大转矩。

公开(公告)号：US20130333508A1

公开(公告)日：2013-12-19

申请号：US13906696

申请日：2013-05-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Philip C. Lundberg ,  Zhe Xie

IPC: F16H61/00 ,  F16H57/04

CPC classification number: F16H61/0021 ,  F16H57/0435 ,  F16H61/6648 ,  F16H61/6649 ,  F16H2061/0037 ,  Y10T74/20024 ,  Y10T137/85978

Abstract: A hydraulic control system for a continuously variable transmission includes a pressure regulator subsystem, a ratio control subsystem, a torque converter control (TCC) subsystem, a variable lubrication control subsystem, a variator clamping subsystem, and a clutch control subsystem. The variable lubrication control subsystem allows for increased and decreased oil flow to components of the variable transmission based on demand. The pressure regulator subsystem provides binary line pressure control to the lubrication subsystem.

Abstract translation: 用于无级变速器的液压控制系统包括压力调节器子系统，比率控制子系统，变矩器控制（TCC）子系统，可变润滑控制子系统，变换器夹紧子系统和离合器控制子系统。 可变润滑控制子系统允许根据需求增加和减少对可变传动部件的油流量。 压力调节器子系统为润滑子系统提供二进制管路压力控制。

公开(公告)号：US10041589B2

公开(公告)日：2018-08-07

申请号：US14932545

申请日：2015-11-04

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Xie ,  Vijay A. Neelakantan

IPC: F16H61/664

Abstract: A speed ratio containment process limits the speed ratio of a variator for a CVT for a motor vehicle when rolling backward by commanding a speed ratio that is higher than the actual speed ratio in an overdrive direction. Accordingly, the actual speed ratio moves to a lowest limit, which provides maximum torque when a driver of the motor vehicle steps on the accelerator pedal to resume forward motion of the motor vehicle.

公开(公告)号：US09383003B2

公开(公告)日：2016-07-05

申请号：US13906696

申请日：2013-05-31

Applicant: GM Global Technology Operations LLC

Inventor： Philip C. Lundberg ,  Zhe Xie

IPC: F16D31/02 ,  F16H61/00 ,  F16H57/04 ,  F16H61/664

CPC classification number: F16H61/0021 ,  F16H57/0435 ,  F16H61/6648 ,  F16H61/6649 ,  F16H2061/0037 ,  Y10T74/20024 ,  Y10T137/85978

Abstract: A hydraulic control system for a continuously variable transmission includes a pressure regulator subsystem, a ratio control subsystem, a torque converter control (TCC) subsystem, a variable lubrication control subsystem, a variator clamping subsystem, and a clutch control subsystem. The variable lubrication control subsystem allows for increased and decreased oil flow to components of the variable transmission based on demand. The pressure regulator subsystem provides binary line pressure control to the lubrication subsystem.

Abstract translation: 用于无级变速器的液压控制系统包括压力调节器子系统，比率控制子系统，变矩器控制（TCC）子系统，可变润滑控制子系统，变换器夹紧子系统和离合器控制子系统。 可变润滑控制子系统允许根据需求增加和减少对可变传动部件的油流量。 压力调节器子系统为润滑子系统提供二进制管路压力控制。

公开(公告)号：US20190232954A1

公开(公告)日：2019-08-01

申请号：US15886028

申请日：2018-02-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher Cinpinski ,  Stephen W. Erskine ,  Zhe Xie

IPC: B60W30/09 ,  B60W40/10

CPC classification number: B60W30/09 ,  B60W40/10 ,  B60W2420/42 ,  B60W2420/52

Abstract: Systems and methods are provided for detecting collisions between objects and an autonomous vehicle. The system includes a computer vision system configured to use acquired environmental data to determine a velocity vector of an object relative to the autonomous vehicle and a distance between the object and the autonomous vehicle. The autonomous driving system also includes a vehicle motion sensing module configured to use acquired vehicle motion data to determine an acceleration vector of the autonomous vehicle. The autonomous driving system also includes a collision detection module configured to register a collision between the object and the autonomous vehicle when the determined acceleration vector is detected having a direction that is substantially the same as a direction of the determined velocity vector of the object and when the determined distance between the object and the autonomous vehicle is less than a predetermined amount.

公开(公告)号：US20130324355A1

公开(公告)日：2013-12-05

申请号：US13709801

申请日：2012-12-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Xie ,  Vijay A. Neelakantan

IPC: F16H61/664

CPC classification number: F16H61/6649 ,  F16H61/664 ,  F16H61/6646 ,  F16H61/6648

Abstract: A speed ratio containment process limits the speed ratio of a variator for a CVT for a motor vehicle when rolling backward by commanding a speed ratio that is higher than the actual speed ratio in an overdrive direction. Accordingly, the actual speed ratio moves to a lowest limit, which provides maximum torque when a driver of the motor vehicle steps on the accelerator pedal to resume forward motion of the motor vehicle.

Abstract translation: 速比保持过程通过指定在过驱动方向上的实际速比比高的速比来限制机动车辆的CVT的变速器的变速比。 因此，实际变速比移动到最低限度，当驾驶员踏上加速器踏板以恢复机动车辆的向前运动时，其提供最大转矩。