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公开(公告)号：US06453873B1
公开(公告)日：2002-09-24
申请号：US09705074
申请日：2000-11-02
IPC分类号： F02D1304
CPC分类号： F01L13/065 , F01L2760/004 , Y10T477/814
摘要： A system and method for controlling combustion engine compression braking having the variable timing of the dwell period of at least one exhaust valve by an electronic control module within each one of the engine cylinders during a braking event as well as the variable timing of the commencement or onset of the braking event. The system and method thus facilitate the proper performance of the braking event as a function of engine speed and prevents interference or physical impact with the cam driving elements used for achieving the normal or regular exhaust valve event.
摘要翻译： 一种用于控制内燃发动机压缩制动的系统和方法，其在制动事件期间通过电子控制模块在每个发动机气缸内具有至少一个排气门的停留时间的可变定时以及开始的可变时间或 发生制动事件。 因此，该系统和方法便于作为发动机转速的函数的制动事件的适当性能，并防止与用于实现正常或常规排气阀事件的凸轮驱动元件的干扰或物理冲击。
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2.发明申请Fresh Air Bypass to Cool Down Hot Exhaust in DPF Regeneration Mode at Low Vehicle Speed and Idle 审中-公开新鲜空气旁路以低车速和空闲的DPF再生模式冷却热排气公开(公告)号：US20090282816A1
公开(公告)日：2009-11-19
申请号：US12123016
申请日：2008-05-19
CPC分类号： F02B37/16 , F01N3/05 , F01N3/103 , F01N9/002 , F01N13/0097 , F01N13/082 , F01N2570/14 , F02M26/05 , Y02A50/2322 , Y02T10/144 , Y02T10/20 , Y02T10/47
摘要： An engine system includes a diesel engine having an exhaust manifold connected to the diesel engine. An exhaust passage is connected to the exhaust manifold and a diesel particulate filter is disposed in the exhaust passage. An air intake passage is provided for supplying fresh air to the diesel engine. A bypass passage is connected between the air intake passage and the exhaust passage in a location downstream of the diesel particulate filter. The bypass passage includes a bypass control valve for opening and closing the bypass passage during a diesel particulate filter regeneration cycle when the vehicle is at low speed or idle.
摘要翻译： 发动机系统包括具有连接到柴油发动机的排气歧管的柴油发动机。 排气通道连接到排气歧管，并且排气通道中设置有柴油机微粒过滤器。 设置有用于向柴油发动机供给新鲜空气的进气通道。 旁通通道在柴油机微粒过滤器下游的位置连接在进气通道和排气通道之间。 旁通通道包括旁路控制阀，用于当车辆处于低速或空转时，在柴油机微粒过滤器再生循环期间打开和关闭旁路通道。
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公开(公告)号：US6092496A
公开(公告)日：2000-07-25
申请号：US146911
申请日：1998-09-04
申请人： Sameer Bhargava , James J. Faletti
发明人： Sameer Bhargava , James J. Faletti
CPC分类号： F02D13/0203 , F01L9/04 , F02D13/0253 , F02D41/064 , F02M26/01 , F02B3/06 , F02D2013/0292 , Y02T10/18
摘要： A method of operating a diesel engine is disclosed. The method includes the step of sensing a temperature level associated with the engine. The method further includes the step of positioning the intake valve in the open position during an exhaust stroke of the engine if the temperature level is below a predetermined threshold value, whereby heated exhaust gases advance into the intake conduit during the exhaust stroke so as to heat intake air located in the intake conduit prior to the intake air advancing into the combustion chamber during a subsequent intake stroke. The method yet further includes the step of positioning the intake valve in the closed position during the exhaust stroke if the temperature level is above the predetermined threshold value, whereby heated exhaust gases are prevented from advancing into the intake conduit during the exhaust stroke. A diesel engine is also disclosed.
摘要翻译： 公开了一种操作柴油发动机的方法。 该方法包括感测与发动机相关联的温度水平的步骤。 该方法还包括以下步骤：如果温度水平低于预定阈值，则在发动机的排气冲程期间将进气门定位在打开位置，由此在排气冲程期间加热的废气进入进气管，以便加热 在吸入空气在随后的进气冲程期间进入燃烧室之前，进气口位于进气管道中。 该方法还包括如果温度水平高于预定阈值，则在排气冲程期间将进气门定位在关闭位置的步骤，由此在排气冲程期间防止加热废气进入进气管道。 还公开了一种柴油发动机。
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公开(公告)号：US06934621B2
公开(公告)日：2005-08-23
申请号：US10627520
申请日：2003-07-25
CPC分类号： F02D41/005 , F02D41/0007 , F02D2200/0406 , F02D2200/0408 , F02D2200/0414 , F02M26/25 , F02M26/47 , Y02T10/144 , Y02T10/47
摘要： A control for an internal combustion engine that includes an exhaust gas recirculation system predicts at least one of the intake manifold temperature in EGR mode or an intake manifold pressure in EGR mode, but preferably both, during Boost mode operation. The predictions are relied upon to calculate an intake manifold critical temperate in EGR, at which condensation would occur. The control then compares the predicted temperate value with the calculated intake manifold critical temperature, and if the predicted value exceeds the calculated temperature, the control commands re-entry into exhaust gas recirculation mode.
摘要翻译： 包括排气再循环系统的内燃机的控制装置在升压模式运行期间预测EGR模式中的进气歧管温度或EGR模式中的进气歧管压力中的至少一个，但优选两者。 依靠这些预测来计算在发生冷凝的EGR中的进气歧管临界温度。 然后，控制将预测的温度值与计算的进气歧管临界温度进行比较，如果预测值超过计算出的温度，则控制命令重新进入废气再循环模式。
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公开(公告)号：US06681171B2
公开(公告)日：2004-01-20
申请号：US10023020
申请日：2001-12-18
IPC分类号： F02M2507
CPC分类号： F02D41/005 , F01P2060/02 , F02B29/0418 , F02B29/0425 , F02B29/0493 , F02B37/24 , F02D2200/0406 , F02D2200/0414 , F02D2200/0418 , F02M26/05 , F02M26/10 , F02M26/16 , F02M26/25 , F02M26/28 , F02M26/47 , Y02T10/146 , Y02T10/47
摘要： A system and method for controlling an internal combustion engine to reduce or eliminate formation of EGR condensate monitor current ambient and operating conditions to determine whether conditions are favorable for condensation of EGR gases, and control the engine accordingly to avoid condensation, preferably by increasing the intake manifold temperature. The intake manifold temperature may be increased by redirecting some or all of the EGR flow to avoid the EGR cooler. Alternatively, or in combination, some or all of the charge air may be redirected to bypass the charge air cooler and/or redirected from the outlet of the turbocharger compressor to the intake, effectively increasing the intake air temperature and resulting in a corresponding increase of the intake manifold temperature. Conditions favorable for condensation may be determined based on engine speed and load, ambient temperature, manifold pressure, scheduled or actual EGR flow rate and scheduled or actual air/fuel ratio.
摘要翻译： 用于控制内燃机以减少或消除形成EGR冷凝物的系统和方法监测当前环境和操作条件以确定条件是否有利于EGR气体的冷凝，并且相应地控制发动机以避免冷凝，优选地通过增加进气 歧管温度。 进气歧管温度可以通过重定向一些或所有EGR流来避免EGR冷却器而增加。 或者或组合地，一些或所有增压空气可以被重定向以绕过增压空气冷却器和/或从涡轮增压器压缩机的出口重新定向到进气口，有效地增加进气温度并导致相应增加 进气歧管温度。 有利于冷凝的条件可以根据发动机转速和负荷，环境温度，歧管压力，调度或实际EGR流量以及计划或实际空气/燃料比来确定。
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公开(公告)号：US07079938B2
公开(公告)日：2006-07-18
申请号：US10627936
申请日：2003-07-25
IPC分类号： F02M25/07
CPC分类号： F02D41/005 , F02D41/0007 , F02D41/0072 , F02D2200/0406 , F02D2200/0414 , F02D2200/0418 , F02M26/25 , F02M26/47 , Y02T10/144 , Y02T10/47
摘要： A control and method for an internal combustion engine that includes an exhaust gas recirculation system to predict an intake manifold critical temperature (dew point) at which condensation would occur upon entry into exhaust gas recirculation. The control calculates the intake manifold critical temperature (IMT_Critical) as a function of predetermined, sensed or assumed values by processing an equation whose variables are occupied by the values. The control commands adjustments of exhaust gas recirculation operation in response to the calculation, preferably after the actual intake manifold temperature exceeds the IMT_Critical for a predetermined time.
摘要翻译： 一种用于内燃机的控制和方法，其包括排气再循环系统，以预测在进入废气再循环时会发生冷凝的进气歧管临界温度（露点）。 该控制通过处理变量被这些值占据的方程式来计算进气歧管临界温度（IMT_Critical）作为预定的，感测值或假定值的函数。 控制命令响应于计算，优选在实际进气歧管温度超过IMT_Critical预定时间之后调节废气再循环操作。
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公开(公告)号：US20050021218A1
公开(公告)日：2005-01-27
申请号：US10627936
申请日：2003-07-25
CPC分类号： F02D41/005 , F02D41/0007 , F02D41/0072 , F02D2200/0406 , F02D2200/0414 , F02D2200/0418 , F02M26/25 , F02M26/47 , Y02T10/144 , Y02T10/47
摘要： A control and method for an internal combustion engine that includes an exhaust gas recirculation system to predict an intake manifold critical temperature (dew point) at which condensation would occur upon entry into exhaust gas recirculation. The control calculates the intake manifold critical temperature (IMT_Critical) as a function of predetermined, sensed or assumed values by processing an equation whose variables are occupied by the values. The control commands adjustments of exhaust gas recirculation operation in response to the calculation, preferably after the actual intake manifold temperature exceeds the IMT_Critical for a predetermined time.
摘要翻译： 一种用于内燃机的控制和方法，其包括排气再循环系统，以预测在进入废气再循环时会发生冷凝的进气歧管临界温度（露点）。 该控制通过处理变量被这些值占据的方程式来计算进气歧管临界温度（IMT_Critical）作为预定的，感测值或假定值的函数。 控制命令响应于计算，优选在实际进气歧管温度超过IMT_Critical预定时间之后调节废气再循环操作。
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公开(公告)号：US20050021217A1
公开(公告)日：2005-01-27
申请号：US10627520
申请日：2003-07-25
CPC分类号： F02D41/005 , F02D41/0007 , F02D2200/0406 , F02D2200/0408 , F02D2200/0414 , F02M26/25 , F02M26/47 , Y02T10/144 , Y02T10/47
摘要： A control for an internal combustion engine that includes an exhaust gas recirculation system predicts at least one of the intake manifold temperature in EGR mode or an intake manifold pressure in EGR mode, but preferably both, during Boost mode operation. The predictions are relied upon to calculate an intake manifold critical temperate in EGR, at which condensation would occur. The control then compares the predicted temperate value with the calculated intake manifold critical temperature, and if the predicted value exceeds the calculated temperature, the control commands re-entry into exhaust gas recirculation mode.
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