公开(公告)号：US09416815B2

公开(公告)日：2016-08-16

申请号：US14503531

申请日：2014-10-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: F16C1/02 ,  F16D3/10

CPC classification number: F16C1/02 ,  B60K17/22 ,  F16C3/023 ,  F16C2326/06 ,  F16D1/0858 ,  F16D3/10 ,  F16D3/72 ,  F16D7/025 ,  F16D47/02 ,  F16D2001/102 ,  F16D2300/10 ,  F16F7/04

Abstract: A two-stage stiffness driveshaft includes a hollow cylinder defined by a longitudinal axis, a first end, a distal second end, and a hollow cylinder stiffness. The driveshaft also includes an inner shaft extending through the hollow cylinder along the longitudinal axis and defined by a first end, a distal second end, and an inner shaft stiffness. The first end of the inner shaft is engaged with the first end of the hollow cylinder via a rotational clearance fit. The second end of the inner shaft is rotationally fixed to the second end of the hollow cylinder such that the first end of the inner shaft can twist to a predetermined angle with respect to the second end of the inner shaft. The inner shaft stiffness defines a first-stage stiffness of the driveshaft, and the inner shaft stiffness and the hollow cylinder stiffness together define a second-stage stiffness of the driveshaft.

Abstract translation: 两级刚度驱动轴包括由纵向轴线，第一端，远端第二端和中空气缸刚度限定的中空圆柱体。 驱动轴还包括沿着纵向轴线延伸通过中空圆柱体并由第一端，远端第二端和内轴刚度限定的内轴。 内轴的第一端通过旋转间隙配合与中空圆筒的第一端接合。 内轴的第二端旋转地固定到中空圆筒的第二端，使得内轴的第一端可以相对于内轴的第二端扭转到预定的角度。 内轴刚度限定了驱动轴的第一级刚度，并且内轴刚度和中空气缸刚度一起限定了驱动轴的第二级刚度。

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：US20150184600A1

公开(公告)日：2015-07-02

申请号：US14143267

申请日：2013-12-30

Applicant: GM Global Technology Operations LLC

Inventor： Mark Gehringer ,  Nitish J. Wagh ,  Daniel Robert Mandernack

IPC: F02D35/02 ,  G01H1/10

CPC classification number: F02D41/1498 ,  B60W10/06 ,  B60W10/10 ,  B60W30/1882 ,  B60W30/20 ,  B60W2710/0644 ,  B60W2710/0677 ,  F02D31/001 ,  F02D35/02 ,  F02D41/0087 ,  F02D41/021 ,  F02D41/14 ,  G01H1/00 ,  G01H1/06 ,  G01H1/10

Abstract: A system according to the principles of the present disclosure includes a vibration level module and an engine operation control module. The vibration level module estimates a first level of vibration in a vehicle due to contact between tires of the vehicle and a road surface as the vehicle travels over the road surface. The vibration level module estimates a second level of vibration in the vehicle due to an engine in the vehicle. The engine operation control module selectively adjusts at least one of a speed of the engine and a load on the engine when the second vibration level is less than the first vibration level.

Abstract translation: 根据本公开的原理的系统包括振动水平模块和发动机操作控制模块。 当车辆在路面上行驶时，振动水平模块估计由于车辆的轮胎和路面之间的接触而导致的车辆中的第一级振动。 振动水平模块估计由于车辆中的发动机引起的车辆中的第二级振动。 当第二振动水平小于第一振动水平时，发动机操作控制模块选择性地调节发动机的速度和发动机的负载中的至少一个。

公开(公告)号：US20160097420A1

公开(公告)日：2016-04-07

申请号：US14503531

申请日：2014-10-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: F16C1/02

CPC classification number: F16C1/02 ,  B60K17/22 ,  F16C3/023 ,  F16C2326/06 ,  F16D1/0858 ,  F16D3/10 ,  F16D3/72 ,  F16D7/025 ,  F16D47/02 ,  F16D2001/102 ,  F16D2300/10 ,  F16F7/04

Abstract: A two-stage stiffness driveshaft includes a hollow cylinder defined by a longitudinal axis, a first end, a distal second end, and a hollow cylinder stiffness. The driveshaft also includes an inner shaft extending through the hollow cylinder along the longitudinal axis and defined by a first end, a distal second end, and an inner shaft stiffness. The first end of the inner shaft is engaged with the first end of the hollow cylinder via a rotational clearance fit. The second end of the inner shaft is rotationally fixed to the second end of the hollow cylinder such that the first end of the inner shaft can twist to a predetermined angle with respect to the second end of the inner shaft. The inner shaft stiffness defines a first-stage stiffness of the driveshaft, and the inner shaft stiffness and the hollow cylinder stiffness together define a second-stage stiffness of the driveshaft.

Abstract translation: 两级刚度驱动轴包括由纵向轴线，第一端，远端第二端和中空气缸刚度限定的中空圆柱体。 驱动轴还包括沿着纵向轴线延伸通过中空圆柱体并由第一端，远端第二端和内轴刚度限定的内轴。 内轴的第一端通过旋转间隙配合与中空圆筒的第一端接合。 内轴的第二端旋转地固定到中空圆筒的第二端，使得内轴的第一端可以相对于内轴的第二端扭转到预定的角度。 内轴刚度限定了驱动轴的第一级刚度，并且内轴刚度和中空气缸刚度一起限定了驱动轴的第二级刚度。

公开(公告)号：US09284903B2

公开(公告)日：2016-03-15

申请号：US14143267

申请日：2013-12-30

Applicant: GM Global Technology Operations LLC

Inventor： Mark Gehringer ,  Nitish J. Wagh ,  Daniel Robert Mandernack

IPC: F02D41/14 ,  F02D35/02 ,  G01H1/10 ,  B60W10/06 ,  B60W10/10 ,  B60W30/188 ,  F02D41/00 ,  F02D31/00 ,  G01H1/06 ,  F02D41/02

CPC classification number: F02D41/1498 ,  B60W10/06 ,  B60W10/10 ,  B60W30/1882 ,  B60W30/20 ,  B60W2710/0644 ,  B60W2710/0677 ,  F02D31/001 ,  F02D35/02 ,  F02D41/0087 ,  F02D41/021 ,  F02D41/14 ,  G01H1/00 ,  G01H1/06 ,  G01H1/10

Abstract: A system according to the principles of the present disclosure includes a vibration level module and an engine operation control module. The vibration level module estimates a first level of vibration in a vehicle due to contact between tires of the vehicle and a road surface as the vehicle travels over the road surface. The vibration level module estimates a second level of vibration in the vehicle due to an engine in the vehicle. The engine operation control module selectively adjusts at least one of a speed of the engine and a load on the engine when the second vibration level is less than the first vibration level.

Abstract translation: 根据本公开的原理的系统包括振动水平模块和发动机操作控制模块。 当车辆在路面上行驶时，振动水平模块估计由于车辆的轮胎和路面之间的接触而导致的车辆中的第一级振动。 振动水平模块估计由于车辆中的发动机引起的车辆中的第二级振动。 当第二振动水平小于第一振动水平时，发动机操作控制模块选择性地调节发动机的速度和发动机的负载中的至少一个。