公开(公告)号：US10145271B2

公开(公告)日：2018-12-04

申请号：US15421795

申请日：2017-02-01

Applicant: GM Global Technology Operations LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Michael B. Fleck ,  Ronald B. Beals ,  Kevin M. Luchansky

IPC: F01L1/18 ,  F01L1/46

Abstract: A monolithic rocker arm component includes a first lateral wall defining a first aperture and a first mass reducing feature, an opposing second wall defining a second aperture and a second mass reducing feature, a pushrod receiving member that bridges the first lateral wall and the second lateral wall at a first end of the rocker arm, and a tongue element that bridges the first lateral wall and the second lateral wall at a second end of the rocker arm. The pushrod receiving member routes oil from the first towards the second end. The monolithic rocker arm may have one or more internal regions having lattice structures. Methods for additive manufacturing the monolithic rocker component are also provided.

公开(公告)号：US09376975B2

公开(公告)日：2016-06-28

申请号：US13712178

申请日：2012-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： J. Michael Gwidt ,  Bjorn E. Soderstrom ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

IPC: F02D41/10 ,  F02D41/14 ,  F02D41/04 ,  F02D41/00

CPC classification number: F02D41/14 ,  F02D41/0007 ,  F02D41/047 ,  F02D41/10 ,  F02D2200/0406 ,  Y02T10/144

Abstract: An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal.

Abstract translation: 用于车辆的发动机控制系统包括定时器模块，随机预点火（SPI）缓解模块和升压控制模块。 定时器模块跟踪在进气歧管内的真空小于第一预定真空的发动机的操作周期。 SPI缓冲模块在周期大于预定周期并且真空小于第二预定真空时产生SPI信号。 第二预定真空小于第一预定真空。 升压控制模块响应于SPI信号的产生而减少涡轮增压器的输出。

公开(公告)号：US20160061149A1

公开(公告)日：2016-03-03

申请号：US14469766

申请日：2014-08-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert J. Moran ,  Kevin M. Luchansky ,  Eric C. Douse

IPC: F02M25/07

CPC classification number: F02M26/04 ,  F02F1/243 ,  F02F1/40 ,  F02M26/11 ,  F02M26/29 ,  Y02T10/121

Abstract: An assembly includes a cylinder head with an integrated exhaust manifold that has four exhaust flow passages directing cylinder exhaust from inlets arranged to correspond with exhaust from the four cylinders, respectively, and has only three outlets. The assembly includes a twin scroll turbocharger having a housing with a first scroll passage, a second scroll passage, and only three inlets. Two of the exhaust flow passages join in the cylinder head to direct exhaust flow into only one of the inlets of the housing and through the first scroll passage. Exhaust flow through the other two of the exhaust flow passages flows separately into the other two inlets in the housing and joins in the housing to flow through the second scroll passage.

Abstract translation: 组件包括具有集成排气歧管的气缸盖，其具有四个排气流动通道，分别引导来自四个气缸的废气的入口的排气管，并且仅具有三个出口。 该组件包括双涡旋涡轮增压器，其具有带有第一涡旋通道的壳体，第二涡旋通道和只有三个入口。 两个排气流通道连接在气缸盖中，以将废气流引导到壳体的一个入口和第一涡旋通道中。 通过另外两个排气流通道的排气流分别流入壳体中的另外两个入口并连接到壳体中以流过第二涡旋通道。

公开(公告)号：US20140278010A1

公开(公告)日：2014-09-18

申请号：US13832154

申请日：2013-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wajdi B. Hamama ,  Craig M. Sawdon ,  Kevin M. Luchansky ,  James R. Reeder, JR. ,  Frank Garthoff ,  Christian Mueller ,  Jessica A. Carroll

IPC: F02D35/02

CPC classification number: F02D35/027 ,  F02D41/0087 ,  F02D41/2451 ,  F02D2200/0611 ,  G01L23/22

Abstract: A method includes: generating an indicator of present operating conditions of an engine; determining a first amount of noise based on vibration measured during a first plurality of combustion events of a cylinder; storing the first amount of noise and a first value of the indicator in a mapping based on a first engine speed and a first engine load; determining the first value of the indicator from the mapping based on a second engine speed and a second engine load; generating a trigger signal when the first value is different than a second value of the indicator; and, when the trigger signal is generated: determining a second amount of noise based on vibration measured during a second plurality of combustion events of the cylinder; and replacing the first amount of noise and the first value in the mapping with the second amount of noise and the second value.

Abstract translation: 一种方法包括：产生发动机的当前操作条件的指示器; 基于在气缸的第一多个燃烧事件期间测量的振动来确定第一噪声量; 基于第一发动机速度和第一发动机负载将映射中的第一噪声量和第一值存储在映射中; 基于第二发动机速度和第二发动机负载从所述映射确定所述指示器的第一值; 当所述第一值不同于所述指示器的第二值时产生触发信号; 并且当产生触发信号时：基于在所述气缸的第二多个燃烧事件期间测量的振动来确定第二噪声量; 以及用所述第二噪声量和所述第二值替换所述映射中的所述第一噪声量和所述第一值。

公开(公告)号：US20140163844A1

公开(公告)日：2014-06-12

申请号：US13712178

申请日：2012-12-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： J. Michael Gwidt ,  Bjorn E. Soderstrom ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

IPC: F02D41/14

CPC classification number: F02D41/14 ,  F02D41/0007 ,  F02D41/047 ,  F02D41/10 ,  F02D2200/0406 ,  Y02T10/144

Abstract: An engine control system for a vehicle includes a timer module, a stochastic pre-ignition (SPI) mitigation module, and a boost control module. The timer module tracks a period of operation of an engine where vacuum within an intake manifold is less than a first predetermined vacuum. The SPI mitigation module generates an SPI signal when the period is greater than a predetermined period and the vacuum is less than a second predetermined vacuum. The second predetermined vacuum is less than the first predetermined vacuum. The boost control module reduces output of a turbocharger in response to the generation of the SPI signal.

Abstract translation: 用于车辆的发动机控制系统包括定时器模块，随机预点火（SPI）缓解模块和升压控制模块。 定时器模块跟踪在进气歧管内的真空小于第一预定真空的发动机的操作周期。 SPI缓冲模块在周期大于预定周期并且真空小于第二预定真空时产生SPI信号。 第二预定真空小于第一预定真空。 升压控制模块响应于SPI信号的产生而减少涡轮增压器的输出。

公开(公告)号：US09464545B2

公开(公告)日：2016-10-11

申请号：US14482222

申请日：2014-09-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert J. Moran ,  Hans-Guido Kemmer ,  Kevin M. Luchansky

IPC: F01L1/34 ,  F01L13/00 ,  F01L1/053

CPC classification number: F01L13/0042 ,  F01L13/0036 ,  F01L2001/0537 ,  F01L2013/0052 ,  Y10T29/49293

Abstract: A camshaft assembly includes a base shaft extending along a longitudinal axis. The base shaft is configured to rotate about the longitudinal axis. The camshaft assembly further includes a series of lobe packs mounted on the base shaft. The lobe pack includes a first cam lobe, a second cam lobe, and a third cam lobe. The lobe pack further includes a barrel cam defining a control groove. The camshaft assembly further includes an actuator including an actuator body and at least one pin movably coupled to the actuator body. The lobe pack is configured to move axially relative to the base shaft between a first position, a second position, and a third position. These three lobe pack positions are used to define three discrete valve lift profiles for the intake or exhaust valves in the cylinder. The lift profiles can be different for each engine valve.

Abstract translation: 凸轮轴组件包括沿着纵向轴线延伸的基部轴。 基轴构造成围绕纵向轴线旋转。 凸轮轴组件还包括安装在基座轴上的一系列凸角组件。 凸耳组包括第一凸轮凸角，第二凸轮凸角和第三凸轮凸角。 凸角组件还包括限定控制凹槽的筒形凸轮。 凸轮轴组件还包括致动器，其包括致动器主体和可移动地联接到致动器主体的至少一个销。 凸角组件构造成在第一位置，第二位置和第三位置之间相对于基轴轴向移动。 这三个凸角包装位置用于定义汽缸中进气或排气阀的三个离散的气门升程曲线。 每个发动机气门的升力曲线可以不同。

公开(公告)号：US20150047589A1

公开(公告)日：2015-02-19

申请号：US14482222

申请日：2014-09-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Robert J. Moran ,  Hans-Guido Kemmer ,  Kevin M. Luchansky

IPC: F01L13/00

CPC classification number: F01L13/0042 ,  F01L13/0036 ,  F01L2001/0537 ,  F01L2013/0052 ,  Y10T29/49293

Abstract: A camshaft assembly includes a base shaft extending along a longitudinal axis. The base shaft is configured to rotate about the longitudinal axis. The camshaft assembly further includes a series of lobe packs mounted on the base shaft. The lobe pack includes a first cam lobe, a second cam lobe, and a third cam lobe. The lobe pack further includes a barrel cam defining a control groove. The camshaft assembly further includes an actuator including an actuator body and at least one pin movably coupled to the actuator body. The lobe pack is configured to move axially relative to the base shaft between a first position, a second position, and a third position. These three lobe pack positions are used to define three discrete valve lift profiles for the intake or exhaust valves in the cylinder. The lift profiles can be different for each engine valve.

Abstract translation: 凸轮轴组件包括沿着纵向轴线延伸的基部轴。 基轴构造成围绕纵向轴线旋转。 凸轮轴组件还包括安装在基座轴上的一系列凸角组件。 凸耳组包括第一凸轮凸角，第二凸轮凸角和第三凸轮凸角。 凸角组件还包括限定控制凹槽的筒形凸轮。 凸轮轴组件还包括致动器，其包括致动器主体和可移动地联接到致动器主体的至少一个销。 凸角组件构造成在第一位置，第二位置和第三位置之间相对于基轴轴向移动。 这三个凸角包装位置用于定义汽缸中进气或排气阀的三个离散的气门升程曲线。 每个发动机气门的升力曲线可以不同。

公开(公告)号：US08973429B2

公开(公告)日：2015-03-10

申请号：US13775628

申请日：2013-02-25

Applicant: GM Global Technology Operations LLC

Inventor： J. Michael Gwidt ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

IPC: G01M15/12 ,  G01M15/11

CPC classification number: G01M15/11 ,  G01L23/225

Abstract: A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.

Abstract translation: 根据本公开原理的系统包括振动强度模块和随机预点火（SPI）检测模块。 振动强度模块确定发动机在第一发动机循环和第二发动机循环中的振动强度。 第一发动机循环和第二发动机循环各自对应于预定量的曲轴旋转。 当第一发动机循环的振动强度小于第一阈值并且第二发动机循环的振动强度大于第二阈值时，SPI检测模块选择性地检测随机预点火。

公开(公告)号：US20140238120A1

公开(公告)日：2014-08-28

申请号：US13775628

申请日：2013-02-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： J. Michael Gwidt ,  Kevin M. Luchansky ,  Craig M. Sawdon ,  Wajdi B. Hamama

IPC: G01M15/11

CPC classification number: G01M15/11 ,  G01L23/225

Abstract: A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.

Abstract translation: 根据本公开原理的系统包括振动强度模块和随机预点火（SPI）检测模块。 振动强度模块确定发动机在第一发动机循环和第二发动机循环中的振动强度。 第一发动机循环和第二发动机循环各自对应于预定量的曲轴旋转。 当第一发动机循环的振动强度小于第一阈值并且第二发动机循环的振动强度大于第二阈值时，SPI检测模块选择性地检测随机预点火。

公开(公告)号：US20180216501A1

公开(公告)日：2018-08-02

申请号：US15421795

申请日：2017-02-01

Applicant: GM Global Technology Operations LLC

Inventor： Tyson W. Brown ,  Anil K. Sachdev ,  Michael B. Fleck ,  Ronald B. Beals ,  Kevin M. Luchansky

IPC: F01L1/18

CPC classification number: F01L1/181 ,  F01L1/146 ,  F01L1/46 ,  F01L2101/00 ,  F01L2101/02 ,  F01L2103/00 ,  F01L2810/02

Abstract: A monolithic rocker arm component includes a first lateral wall defining a first aperture and a first mass reducing feature, an opposing second wall defining a second aperture and a second mass reducing feature, a pushrod receiving member that bridges the first lateral wall and the second lateral wall at a first end of the rocker arm, and a tongue element that bridges the first lateral wall and the second lateral wall at a second end of the rocker arm. The pushrod receiving member routes oil from the first towards the second end. The monolithic rocker arm may have one or more internal regions having lattice structures. Methods for additive manufacturing the monolithic rocker component are also provided.