公开(公告)号：US20190017487A1

公开(公告)日：2019-01-17

申请号：US15648257

申请日：2017-07-12

Applicant: General Electric Company

Inventor： Ryan Michael Rudnitzki ,  Jeffey Jacob Bizub ,  Rajesh Katta ,  Sandro Rivellini

IPC: F02P5/152 ,  G01L23/22 ,  F02D35/02 ,  F02D41/40

Abstract: In one embodiment, a system includes an engine control system configured to control an engine. The engine control system comprises a processor configured to receive a vibration signal sensed by a knock sensor disposed in an engine. The processor is further configured to correlate the vibration signal with a fingerprint having at least an ADSR envelope indicative of the operating event of a valve train of the combustion engine, analyze the vibration signal with a statistical valve train model, or a combination thereof. The processor is also configured to detect if the operating event has occurred based on correlating of the noise signal with the fingerprint, based on analyzing the vibration signal with a statistical valve train model, or a combination thereof, and to control the valve train based on the operating event.

公开(公告)号：US09810105B2

公开(公告)日：2017-11-07

申请号：US14882198

申请日：2015-10-13

Applicant: General Electric Company

Inventor： James Hugo Martyn ,  Christian Rauch ,  Sandro Rivellini

IPC: F01L1/34 ,  F01L1/08 ,  F01L1/047 ,  F16F15/20 ,  F01L1/14

CPC classification number: F01L1/08 ,  F01L1/047 ,  F01L1/146 ,  F01L2001/0471 ,  F01L2001/0476 ,  F01L2001/054 ,  F01L2810/03 ,  F01L2820/01 ,  F16F15/20

Abstract: A system includes a camshaft disposed along an axis from a drive end to a opposite end, and the camshaft includes a plurality of journals configured to support the camshaft and is spaced along the axis. The camshaft includes a plurality of cams spaced along the axis, and is disposed along the camshaft in sets, where each set is disposed between a respective pair of journals of the plurality of journals. The camshaft includes a plurality of mass portions, where each mass portion is disposed between a set of cams and a respective journal. The plurality of mass portions is disposed along the camshaft such that a center of mass of the plurality of mass portions is nearer to the drive end than to the opposite end, and the plurality of mass portions is configured to increase a natural frequency of the shaft.

公开(公告)号：US20160370254A1

公开(公告)日：2016-12-22

申请号：US14745986

申请日：2015-06-22

Applicant: General Electric Company

Inventor： Sandro Rivellini

IPC: G01M15/05 ,  G01M15/06 ,  G01M15/11

CPC classification number: G01M15/05 ,  F02D35/027 ,  F02D41/009 ,  F02D41/0097 ,  F02D41/22 ,  G01M15/06 ,  G01M15/11 ,  Y02T10/40

Abstract: In one embodiment, a system includes an engine control system configured to control an engine. The engine control system comprises a processor configured to receive a vibration signal sensed by a knock sensor disposed in an engine, and to receive a crankshaft signal sensed by a crank angle sensor disposed in the engine, wherein the crankshaft signal is representative of an engine crank angle. The processor is further configured to monitor a valve timing by deriving a cylinder head acceleration measurement via the vibration signal received by the knock sensor, wherein the processor is configured to monitor the valve timing by deriving a valve lash based on the vibration signal, the engine crank angle, and a threshold valve lash model.

Abstract translation: 在一个实施例中，系统包括配置成控制发动机的发动机控制系统。 发动机控制系统包括处理器，其被配置为接收由设置在发动机中的爆震传感器感测到的振动信号，并且接收由设置在发动机中的曲柄角传感器感测到的曲轴信号，其中曲轴信号代表发动机曲柄 角度。 处理器还被配置为通过经由爆震传感器接收的振动信号导出气缸盖加速度测量来监视气门正时，其中处理器被配置成通过基于振动信号导出阀间隙来监视气门正时，发动机 曲轴角度和阈值阀睫毛模型。

公开(公告)号：US09933334B2

公开(公告)日：2018-04-03

申请号：US14745986

申请日：2015-06-22

Applicant: General Electric Company

Inventor： Sandro Rivellini

IPC: G01M15/05 ,  G01M15/06 ,  G01M15/11 ,  F02D41/00 ,  F02D41/22 ,  F02D35/02

CPC classification number: G01M15/05 ,  F02D35/027 ,  F02D41/009 ,  F02D41/0097 ,  F02D41/22 ,  G01M15/06 ,  G01M15/11 ,  Y02T10/40

Abstract: In one embodiment, a system includes an engine control system configured to control an engine. The engine control system comprises a processor configured to receive a vibration signal sensed by a knock sensor disposed in an engine, and to receive a crankshaft signal sensed by a crank angle sensor disposed in the engine, wherein the crankshaft signal is representative of an engine crank angle. The processor is further configured to monitor a valve timing by deriving a cylinder head acceleration measurement via the vibration signal received by the knock sensor, wherein the processor is configured to monitor the valve timing by deriving a valve lash based on the vibration signal, the engine crank angle, and a threshold valve lash model.

公开(公告)号：US20170101902A1

公开(公告)日：2017-04-13

申请号：US14882198

申请日：2015-10-13

Applicant: General Electric Company

Inventor： James Hugo Martyn ,  Christian Rauch ,  Sandro Rivellini

IPC: F01L1/08 ,  F01L1/047

CPC classification number: F01L1/08 ,  F01L1/047 ,  F01L1/146 ,  F01L2001/0471 ,  F01L2001/0476 ,  F01L2001/054 ,  F01L2810/03 ,  F01L2820/01 ,  F16F15/20

Abstract: A system includes a camshaft disposed along an axis from a drive end to a opposite end, and the camshaft includes a plurality of journals configured to support the camshaft and is spaced along the axis. The camshaft includes a plurality of cams spaced along the axis, and is disposed along the camshaft in sets, where each set is disposed between a respective pair of journals of the plurality of journals. The camshaft includes a plurality of mass portions, where each mass portion is disposed between a set of cams and a respective journal. The plurality of mass portions is disposed along the camshaft such that a center of mass of the plurality of mass portions is nearer to the drive end than to the opposite end, and the plurality of mass portions is configured to increase a natural frequency of the shaft.