公开(公告)号：US10054167B2

公开(公告)日：2018-08-21

申请号：US15136003

申请日：2016-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul A. Piorkowski ,  Michael J. Grimmer ,  Mark Gehringer ,  Stephanie A. Erntser ,  Eric J Defenderfer ,  Stephen H. Miller

IPC: F16D3/12 ,  F16C3/02 ,  F16D1/08 ,  F16D3/10 ,  F16D3/72 ,  F16D7/02 ,  F16C1/02 ,  F16D47/02 ,  F16F1/00 ,  F16D1/10

CPC classification number: F16D3/12 ,  F16C1/02 ,  F16C3/023 ,  F16C2326/06 ,  F16D1/0858 ,  F16D3/10 ,  F16D3/68 ,  F16D3/72 ,  F16D7/025 ,  F16D47/02 ,  F16D2001/102 ,  F16D2001/103 ,  F16D2300/10 ,  F16F1/00

Abstract: A two-stage stiffness driveshaft includes a hollow cylinder having first and second ends and a hollow cylinder stiffness. An inner shaft having first and second ends and an inner shaft stiffness extends through the hollow cylinder. The inner shaft's first end and the hollow cylinder's first end are engaged via a rotational clearance fit. The inner shaft's second end is rotationally fixed to the hollow cylinder's second end to permit the inner shaft's first end to twist through a predetermined angle relative to the inner shaft's second end. The inner shaft's stiffness defines the driveshaft's first-stage stiffness, while the combined stiffness of the inner shaft and the hollow cylinder defines the driveshaft's second-stage stiffness. A damping element positioned between the inner shaft and the hollow cylinder controls variation in torque transmitted by the driveshaft and generates gradual transition between the first-stage stiffness and the second-stage stiffness.

公开(公告)号：US09770947B1

公开(公告)日：2017-09-26

申请号：US15136055

申请日：2016-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul A. Piorkowski

IPC: B60K17/24 ,  B60B35/14 ,  B60B27/00

CPC classification number: B60B35/14 ,  B60B27/0026 ,  B60B35/08 ,  B60B2900/311

Abstract: An axle-shaft system for transmitting torque in a motor vehicle drive-train includes first and second two-stage stiffness axle-shafts. Each axle-shaft includes a hollow cylinder having first and second ends and a hollow cylinder stiffness. The axle-shaft also includes an inner shaft extending through the hollow cylinder, and having first and second ends and an inner shaft stiffness. The inner shaft's and the hollow cylinder's first ends are engaged via a rotational clearance fit. The inner shaft's and the hollow cylinder's second ends are rotationally fixed to permit the inner shaft's first end to twist relative to the inner shaft's second end. The inner shaft's stiffness defines the axle-shaft's first-stage stiffness, while the inner shaft's and the hollow cylinder's combined stiffness defines the axle-shaft's second-stage stiffness. At least one of the first-stage and second-stage stiffness of the first axle-shaft is dissimilar from the respective stiffness of the second axle-shaft.

公开(公告)号：US20160238083A1

公开(公告)日：2016-08-18

申请号：US15136003

申请日：2016-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul A. Piorkowski

IPC: F16D3/12 ,  F16C3/02

CPC classification number: F16D3/12 ,  F16C1/02 ,  F16C3/023 ,  F16C2326/06 ,  F16D1/0858 ,  F16D3/10 ,  F16D3/68 ,  F16D3/72 ,  F16D7/025 ,  F16D47/02 ,  F16D2001/102 ,  F16D2001/103 ,  F16D2300/10 ,  F16F1/00

Abstract: A two-stage stiffness driveshaft includes a hollow cylinder having first and second ends and a hollow cylinder stiffness. An inner shaft having first and second ends and an inner shaft stiffness extends through the hollow cylinder. The inner shaft's first end and the hollow cylinder's first end are engaged via a rotational clearance fit. The inner shaft's second end is rotationally fixed to the hollow cylinder's second end to permit the inner shaft's first end to twist through a predetermined angle relative to the inner shaft's second end. The inner shaft's stiffness defines the driveshaft's first-stage stiffness, while the combined stiffness of the inner shaft and the hollow cylinder defines the driveshaft's second-stage stiffness. A damping element positioned between the inner shaft and the hollow cylinder controls variation in torque transmitted by the driveshaft and generates gradual transition between the first-stage stiffness and the second-stage stiffness.

Abstract translation: 两级刚度驱动轴包括具有第一和第二端以及中空的缸刚性的中空圆柱体。 具有第一端和第二端以及内轴刚度的内轴延伸穿过中空圆筒。 内轴的第一端和中空圆柱的第一端通过旋转间隙配合接合。 内轴的第二端旋转地固定到中空圆筒的第二端，以允许内轴的第一端相对于内轴的第二端扭转预定的角度。 内轴的刚度定义了传动轴的第一级刚度，而内轴和中空气缸的组合刚度限定了传动轴的第二级刚度。 定位在内轴和中空圆柱体之间的阻尼元件控制由驱动轴传递的扭矩的变化，并且在第一级刚度和第二级刚度之间产生逐渐的过渡。

公开(公告)号：US20140165714A1

公开(公告)日：2014-06-19

申请号：US14057576

申请日：2013-10-18

Applicant: GM Global Technology Operations LLC

Inventor： Paul A. Piorkowski ,  Kenneth K. Lang ,  Douglas R. Verner ,  John L. Dietz

IPC: G01M13/02

CPC classification number: G01M13/02

Abstract: A gasket, spacer plate or separator plate for a motor vehicle transmission includes one or more integrated sensors. Such sensors can measure the pressure, flow rate, temperature, as well as any other desire performance characteristic, of the hydraulic fluid in the transmission. The sensors may be mounted on ports in the gasket, spacer plate or separator plate and/or the sensors can be microelectromechanical sensors (MEMS).

Abstract translation: 用于机动车辆变速器的垫圈，间隔板或隔板包括一个或多个集成传感器。 这种传感器可以测量传动装置中的液压流体的压力，流量，温度以及任何其他期望的性能特征。 传感器可以安装在垫圈，间隔板或隔板中的端口上，和/或传感器可以是微机电传感器（MEMS）。