Control Strategy For A Diesel Engine During Lean-Rich Modulation
    1.
    发明申请
    Control Strategy For A Diesel Engine During Lean-Rich Modulation 审中-公开
    精益调制下柴油发动机的控制策略

    公开(公告)号:US20100318276A1

    公开(公告)日:2010-12-16

    申请号:US12481661

    申请日:2009-06-10

    IPC分类号: F02D41/30

    摘要: The control system controls lean-rich modulation of fueling using a set of engine specific fueling parameter maps. One set of maps is a set of lean fueling maps, and another set is a set of rich fueling maps. The two map sets each comprise a fuel injection pressure map, an EGR valve opening map, and a VGT valve opening map, established for the particular diesel engine, with neither form of modulation requiring post injection. The strategy is represented by a flow diagram and is useful in regenerating an NOx adsorber catalyst in the engine exhaust system in a manner that controls torque so that the regeneration process is transparent to the operator of the vehicle, while producing significant fuel savings.

    摘要翻译: 控制系统使用一组发动机特定的燃料加注参数图来控制富燃料调节。 一套地图是一组精益加油地图,另一套地图是一套丰富的加油地图。 这两个地图集包括为特定柴油发动机而建立的燃料喷射压力图,EGR阀开度图和VGT阀开度图,既不需要后喷射的调制形式。 该策略由流程图表示,并且可用于在发动机排气系统中以控制转矩的方式再生NOx吸附剂催化剂,使得再生过程对车辆的操作者是透明的,同时产生显着的燃料节省。

    ENGINE VALVE SYSTEM AND METHOD
    2.
    发明申请
    ENGINE VALVE SYSTEM AND METHOD 有权
    发动机阀门系统及方法

    公开(公告)号:US20060236693A1

    公开(公告)日:2006-10-26

    申请号:US11111324

    申请日:2005-04-21

    IPC分类号: F02B33/44 F02B29/04

    摘要: An engine system (100) has a valve system (137). An inlet of a turbine (109) is fluidly connected to a first inlet (119) of the valve system (137). An outlet of the turbine (123) is fluidly connected to a second inlet (113) of the valve system (137). An outlet of a compressor (155) is fluidly connected to a first outlet (115) of the valve system (137). An inlet of the compressor (141) is fluidly connected to a second outlet (111) of the valve system (137). An inlet of an exhaust gas recirculation system (133) is fluidly connected to a third outlet (121) of the valve system (137), and an outlet of the exhaust gas recirculation system is fluidly connected to a third inlet (117) of the valve system (137).

    摘要翻译: 发动机系统(100)具有阀系统(137)。 涡轮(109)的入口流体地连接到阀系统(137)的第一入口(119)。 涡轮(123)的出口流体地连接到阀系统(137)的第二入口(113)。 压缩机(155)的出口流体地连接到阀系统(137)的第一出口(115)。 压缩机(141)的入口流体地连接到阀系统(137)的第二出口(111)。 排气再循环系统(133)的入口流体地连接到阀系统(137)的第三出口(121),并且废气再循环系统的出口流体连接到第二入口 阀系统(137)。

    Coolant valve system for internal combustion engine and method

    公开(公告)号:US07299771B2

    公开(公告)日:2007-11-27

    申请号:US11330523

    申请日:2006-01-12

    IPC分类号: F01P7/14

    摘要: An internal combustion engine (200) includes a coolant pump (212) having a pump outlet (214), and a first exhaust gas recirculation (EGR) cooler (206) fluidly connected to the pump outlet (214). A crankcase (202) is fluidly connected in parallel with the EGR cooler (206) to the pump outlet (214) for receiving coolant therefrom. A cylinder head (204) is fluidly connected to the crankcase (202) for receiving coolant therefrom. A thermostat (232) is fluidly connected between the cylinder head (204) and the coolant pump (212). A valve system (238) has a first selectable position fluidly connecting the flow from the first EGR cooler (206) to the flow in the cylinder head (204), and a second selectable position fluidly connecting the flow from the first EGR cooler (206) to the thermostat (232) in bypassing relation to the cylinder head (204). Each of the first or second position is effected in response to an engine operating parameter.

    Vortex mixing system for exhaust gas recirculation (EGR)

    公开(公告)号:US20060060173A1

    公开(公告)日:2006-03-23

    申请号:US10945636

    申请日:2004-09-21

    IPC分类号: F02M25/07

    摘要: A vortex mixing system mixes intake air with exhaust gases for exhaust gas recirculation (EGR) in an internal combustion engine. The vortex mixing system may have a vortex mixing device connected to an intake air conduit, a supply conduit, and an EGR conduit. The vortex mixing device may have a plenum disposed around a mixing conduit, which is connected to the intake air conduit and the supply conduit. The plenum is connected to one or more cross conduits and to the EGR conduit. The cross conduits extend across a mixing chamber formed by the mixing conduit. The cross conduits generate one or more vortices in the intake air. Each cross conduit has one or more outlets. The cross conduits direct the exhaust gases through the outlets into the vortices. The exhaust gases mix with the intake air in the vortices.

    Torque control strategy for a diesel engine during lean-rich modulation using independent fuel injection maps
    7.
    发明授权
    Torque control strategy for a diesel engine during lean-rich modulation using independent fuel injection maps 有权
    使用独立燃料喷射图在富含稀薄调制的柴油发动机的扭矩控制策略

    公开(公告)号:US06990951B1

    公开(公告)日:2006-01-31

    申请号:US10889382

    申请日:2004-07-12

    IPC分类号: F02D41/30

    摘要: A compression ignition engine (10) for a motor vehicle has a control system (20) for processing data, one or more combustion chambers (12), and fuel injectors (18) for injecting fuel into the chambers. The control system controls lean-rich modulation of fueling using independent maps. One set of maps is a set of lean fueling maps, and another set is a set of rich fueling maps. The strategy is represented by a flow diagram (30) and is useful in regenerating a NOx adsorber catalyst (16) in the engine exhaust system (14) in a manner that controls torque so that the regeneration process is transparent to the operator of the vehicle.

    摘要翻译: 一种用于机动车辆的压缩点火发动机(10)具有用于处理数据的控制系统(20),一个或多个燃烧室(12)和用于将燃料喷射到室中的燃料喷射器(18)。 控制系统使用独立的地图来控制加油的浓缩调制。 一套地图是一组精益加油地图,另一套地图是一组丰富的加油地图。 该策略由流程图(30)表示,并且可用于在发动机排气系统(14)中以控制转矩的方式再生NO x吸附剂催化剂(16),使得再生过程 对车辆的操作者是透明的。

    Strategy for fueling a diesel engine by selective use of fueling maps to provide HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CDcombustion modes
    8.
    发明申请
    Strategy for fueling a diesel engine by selective use of fueling maps to provide HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CDcombustion modes 失效
    通过选择性使用加油图来提供柴油发动机的战略,以提供HCCI + RVT,HCCI + IVC,HCCI + IVC + EVC和CD燃烧模式

    公开(公告)号:US20050288846A1

    公开(公告)日:2005-12-29

    申请号:US11140627

    申请日:2005-05-31

    摘要: A compression ignition engine (60) has a control system (66) for processing data, one or more combustion chambers (62), and fuel injectors (64) for injecting fuel into the chambers. The control system controls fueling by processing engine speed and load, to select one of four fueling modes (HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CD+RVT) for operating the engine (FIG. 5). When HCCI+RVT mode is selected, intake valves operate with regular valve timing (RVT), and the engine is fueled to cause homogeneous-charge compression-ignition (HCCI) combustion. When HCCI+IVC mode or HCCI+IVC+EVC mode is selected, intake valve timing is changed relative to RVT, and the engine is fueled to cause HCCI combustion. When the processing selects the CD+RVT mode, the intake valves operate with RVT, and the engine is fueled to cause CD combustion. In HCCI+IVC+EVC mode, exhaust valve closing is retarded relative to its timing in HCCI+IVC mode to reduce cylinder pressure and temperature.

    摘要翻译: 压缩点火发动机(60)具有用于处理数据的控制系统(66),一个或多个燃烧室(62)和用于将燃料喷射到室中的燃料喷射器(64)。 控制系统通过处理发动机速度和负载来控制加油,以选择用于操作发动机的四种加油模式(HCCI + RVT,HCCI + IVC,HCCI + IVC + EVC和CD + RVT)之一(图5)。 当选择HCCI + RVT模式时,进气门以正常的气门正时(RVT)运行,发动机燃油以引起均质充气压缩点火(HCCI)燃烧。 当选择HCCI + IVC模式或HCCI + IVC + EVC模式时,进气门正时相对于RVT变化,发动机燃油引起HCCI燃烧。 当处理选择CD + RVT模式时,进气门以RVT运行,并且发动机被燃料以引起CD燃烧。 在HCCI + IVC + EVC模式下,排气门关闭相对于HCCI + IVC模式的时序延迟,以降低气缸压力和温度。

    Coolant valve system for internal combustion engine and method
    9.
    发明申请
    Coolant valve system for internal combustion engine and method 有权
    内燃机冷却液阀门系统及方法

    公开(公告)号:US20070157893A1

    公开(公告)日:2007-07-12

    申请号:US11330523

    申请日:2006-01-12

    摘要: An internal combustion engine (200) includes a coolant pump (212) having a pump outlet (214), and a first exhaust gas recirculation (EGR) cooler (206) fluidly connected to the pump outlet (214). A crankcase (202) is fluidly connected in parallel with the EGR cooler (206) to the pump outlet (214) for receiving coolant therefrom. A cylinder head (204) is fluidly connected to the crankcase (202) for receiving coolant therefrom. A thermostat (232) is fluidly connected between the cylinder head (204) and the coolant pump (212). A valve system (238) has a first selectable position fluidly connecting the flow from the first EGR cooler (206) to the flow in the cylinder head (204), and a second selectable position fluidly connecting the flow from the first EGR cooler (206) to the thermostat (232) in bypassing relation to the cylinder head (204). Each of the first or second position is effected in response to an engine operating parameter.

    摘要翻译: 内燃机(200)包括具有泵出口(214)的冷却剂泵(212)和流体连接到泵出口(214)的第一排气再循环(EGR)冷却器(206)。 曲轴箱(202)与EGR冷却器(206)平行地流体连接到泵出口(214),用于从其中接收冷却剂。 气缸盖(204)流体地连接到曲轴箱(202),用于从其中接收冷却剂。 恒温器(232)流体连接在气缸盖(204)和冷却剂泵(212)之间。 阀系统(238)具有将来自第一EGR冷却器(206)的流动与气缸盖(204)中的流体流体连接的第一可选择位置,以及流体连接来自第一EGR冷却器(206)的流的第二可选择位置 )与气缸盖(204)旁通的恒温器(232)。 响应于发动机操作参数来实现第一或第二位置中的每一个。

    Strategy for fueling a diesel engine by selective use of fueling maps to provide HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CD+RVT combustion modes
    10.
    发明授权
    Strategy for fueling a diesel engine by selective use of fueling maps to provide HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CD+RVT combustion modes 失效
    通过选择性使用加油图来提供柴油发动机的战略,以提供HCCI + RVT,HCCI + IVC,HCCI + IVC + EVC和CD + RVT燃烧模式

    公开(公告)号:US07121255B2

    公开(公告)日:2006-10-17

    申请号:US11140627

    申请日:2005-05-31

    IPC分类号: F02B5/02 F02B5/00

    摘要: A compression ignition engine (60) has a control system (66) for processing data, one or more combustion chambers (62), and fuel injectors (64) for injecting fuel into the chambers. The control system controls fueling by processing engine speed and load, to select one of four fueling modes (HCCI+RVT, HCCI+IVC, HCCI+IVC+EVC, and CD+RVT) for operating the engine (FIG. 5). When HCCI+RVT mode is selected, intake valves operate with regular valve timing (RVT), and the engine is fueled to cause homogeneous-charge compression-ignition (HCCI) combustion. When HCCI+IVC mode or HCCI+IVC+EVC mode is selected, intake valve timing is changed relative to RVT, and the engine is fueled to cause HCCI combustion. When the processing selects the CD+RVT mode, the intake valves operate with RVT, and the engine is fueled to cause CD combustion. In HCCI+IVC+EVC mode, exhaust valve closing is retarded relative to its timing in HCCI+IVC mode to reduce cylinder pressure and temperature.

    摘要翻译: 压缩点火发动机(60)具有用于处理数据的控制系统(66),一个或多个燃烧室(62)和用于将燃料喷射到室中的燃料喷射器(64)。 控制系统通过处理发动机速度和负载来控制加油,以选择用于操作发动机的四种加油模式(HCCI + RVT,HCCI + IVC,HCCI + IVC + EVC和CD + RVT)之一(图5)。 当选择HCCI + RVT模式时,进气门以正常的气门正时(RVT)运行,发动机燃油以引起均质充气压缩点火(HCCI)燃烧。 当选择HCCI + IVC模式或HCCI + IVC + EVC模式时,进气门正时相对于RVT变化,发动机燃油引起HCCI燃烧。 当处理选择CD + RVT模式时,进气门以RVT运行,并且发动机被燃料以引起CD燃烧。 在HCCI + IVC + EVC模式下,排气门关闭相对于HCCI + IVC模式的时序延迟,以降低气缸压力和温度。