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公开(公告)号：US20160003180A1
公开(公告)日：2016-01-07
申请号：US14762937
申请日：2013-01-24
CPC分类号： F02D41/1447 , F01N2560/05 , F01N2560/06 , F02B37/004 , F02B37/013 , F02D41/0007 , F02D41/1446 , F02D41/1448 , F02D41/222 , F02D2041/1433 , Y02T10/144 , Y02T10/40
摘要： A system for estimation of exhaust gas temperature for internal combustion engine at low operating temperatures allows determination of when use of exhaust gas temperature sensor measurements is allowable for engine diagnostic. One approach implements a physical model of pressure and temperature drops across a dual stage waste-gated turbo-charger along with modifiers based on current operating conditions to estimate the temperature in the exhaust manifold. Another models combustion to estimate the temperature in the exhaust manifold.
摘要翻译： 用于在低工作温度下估计内燃机的废气温度的系统允许确定何时使用排气温度传感器测量可用于发动机诊断。 一种方法通过双级废物门控涡轮增压器实现压力和温度下降的物理模型以及基于当前操作条件的改进剂来估计排气歧管中的温度。 另一个模型燃烧以估计排气歧管中的温度。
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公开(公告)号：US20130192568A1
公开(公告)日：2013-08-01
申请号：US13877802
申请日：2010-10-04
CPC分类号： F02B47/08 , F02D41/0002 , F02D41/005 , F02D41/10 , F02D41/401 , F02D2250/36 , F02D2250/38 , F02M26/04 , F02M26/23 , F02M26/48 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要： A method of operating an engine is provided. Output of an engine speed sensor, a mass air flow sensor, an exhaust gas temperature sensor, and an engine torque estimator are monitored with an electronic control module. It is determined if the engine is operating in one of either a transient condition and a non-transient condition based upon output of at least one of the sensors and the torque estimator. Fuel injection timing is set based upon if the engine is operating in a transient condition. An exhaust gas recirculation valve position is set upon if the engine is operating in a transient condition. An intake throttle position is set based upon if the engine is operating in a transient condition. The fuel injection timing, exhaust gas recirculation valve position, and the intake throttle position are set to minimize NOx emissions when the engine is operating in a transient condition.
摘要翻译： 提供了一种操作发动机的方法。 利用电子控制模块监视发动机转速传感器，质量空气流量传感器，排气温度传感器和发动机扭矩估计器的输出。 基于传感器和扭矩估计器中的至少一个的输出，确定发动机是工作在瞬态状态和非瞬态状态之一。 基于发动机是否在瞬态条件下运行来设定燃料喷射正时。 如果发动机在瞬态条件下运行，则设置废气再循环阀位置。 基于发动机是否在瞬态状态下操作，设定进气节气门位置。 燃料喷射正时，废气再循环阀位置和进气节气门位置被设定为当发动机在瞬态条件下操作时使NOx排放最小化。
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公开(公告)号：US09416748B2
公开(公告)日：2016-08-16
申请号：US14114563
申请日：2011-04-29
CPC分类号： F02D41/34 , F02D41/40 , F02M19/0246 , F02M21/0293 , F02M65/00 , F02M65/001 , F02M65/007 , F02M65/008 , F02M2200/06 , Y02T10/44
摘要： A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor.
摘要翻译： 提供一种控制燃料喷射器的方法。 监测发动机转速。 发动机转矩输出被监控。 确定发动机转速是否在多个预定的发动机转速范围内。 确定发动机扭矩输出是否在多个预定的发动机扭矩输出范围之一内。 基于所确定的预定义的发动机速度范围和所确定的预定义的发动机转矩输出范围来分配多个喷射器焦化因子中的一个。 基于多个注射器焦化因子中的每一个内的总操作时间计算总喷射器焦化因子。 燃料喷射的持续时间根据计算的总喷射器焦化因子而增加。
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公开(公告)号：US09175622B2
公开(公告)日：2015-11-03
申请号：US13641205
申请日：2010-04-22
IPC分类号： F02D41/00
CPC分类号： F02D41/0002 , F02D41/0007 , F02D41/005 , F02D41/0072 , F02D2250/18 , Y02T10/42 , Y02T10/47
摘要： An engine control system (32) apportions smoke and NOx in engine-out exhaust gas by a strategy (38) that corrects a target percentage for fresh air and a target percentage for exhaust gas to re-calculate a set-point for fresh air mass flow. The target percentage for fresh air mass flow is calculated as a function of engine speed (N) and an engine output torque request (TQI_DRIV).
摘要翻译： 发动机控制系统（32）通过校正新鲜空气的目标百分比和废气的目标百分比的策略（38）来分配发动机排出的废气中的烟雾和NOx，以重新计算新鲜空气质量的设定点 流。 根据发动机转速（N）和发动机输出扭矩请求（TQI_DRIV）计算新鲜空气质量流量的目标百分比。
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公开(公告)号：US09267430B2
公开(公告)日：2016-02-23
申请号：US13877802
申请日：2010-10-04
CPC分类号： F02B47/08 , F02D41/0002 , F02D41/005 , F02D41/10 , F02D41/401 , F02D2250/36 , F02D2250/38 , F02M26/04 , F02M26/23 , F02M26/48 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要： A method of operating an engine is provided. Output of an engine speed sensor, a mass air flow sensor, an exhaust gas temperature sensor, and an engine torque estimator are monitored with an electronic control module. It is determined if the engine is operating in one of either a transient condition and a non-transient condition based upon output of at least one of the sensors and the torque estimator. Fuel injection timing is set based upon if the engine is operating in a transient condition. An exhaust gas recirculation valve position is set upon if the engine is operating in a transient condition. An intake throttle position is set based upon if the engine is operating in a transient condition. The fuel injection timing, exhaust gas recirculation valve position, and the intake throttle position are set to minimize NOx emissions when the engine is operating in a transient condition.
摘要翻译： 提供了一种操作发动机的方法。 利用电子控制模块监视发动机转速传感器，质量空气流量传感器，排气温度传感器和发动机扭矩估计器的输出。 基于传感器和扭矩估计器中的至少一个的输出，确定发动机是工作在瞬态状态和非瞬态状态之一。 基于发动机是否在瞬态条件下运行来设定燃料喷射正时。 如果发动机在瞬态条件下运行，则设置废气再循环阀位置。 基于发动机是否在瞬态状态下操作，设定进气节气门位置。 燃料喷射正时，废气再循环阀位置和进气节气门位置被设定为当发动机在瞬态条件下操作时使NOx排放最小化。
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公开(公告)号：US20140060495A1
公开(公告)日：2014-03-06
申请号：US14114563
申请日：2011-04-29
IPC分类号： F02D41/34
CPC分类号： F02D41/34 , F02D41/40 , F02M19/0246 , F02M21/0293 , F02M65/00 , F02M65/001 , F02M65/007 , F02M65/008 , F02M2200/06 , Y02T10/44
摘要： A method of controlling a fuel injector is provided. Engine speed is monitored. Engine torque output is monitored. It is determined if the engine speed is within one of a plurality of predefined engine speed ranges. It is determined if the engine torque output is within one of a plurality of predefined engine torque output ranges. One of a plurality of injector coking factors is assigned based on the determined predefined engine speed range and the determined predefined engine torque output range. A total injector coking factor is calculated based upon total operating time within each of the plurality of injector coking factors. A duration of a fuel injection is increased based upon the calculated total injector coking factor.
摘要翻译： 提供一种控制燃料喷射器的方法。 监测发动机转速。 发动机转矩输出被监控。 确定发动机转速是否在多个预定的发动机转速范围内。 确定发动机扭矩输出是否在多个预定的发动机扭矩输出范围之一内。 基于所确定的预定义的发动机速度范围和所确定的预定义的发动机转矩输出范围来分配多个喷射器焦化因子中的一个。 基于多个注射器焦化因子中的每一个内的总操作时间计算总喷射器焦化因子。 燃料喷射的持续时间根据计算的总喷射器焦化因子而增加。
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公开(公告)号：US20130151124A1
公开(公告)日：2013-06-13
申请号：US13641205
申请日：2010-04-22
IPC分类号： F02D41/00
CPC分类号： F02D41/0002 , F02D41/0007 , F02D41/005 , F02D41/0072 , F02D2250/18 , Y02T10/42 , Y02T10/47
摘要： An engine control system (32) apportions smoke and NOx in engine-out exhaust gas by a strategy (38) that corrects a target percentage for fresh air and a target percentage for exhaust gas to recalculate a set-point for fresh air mass flow. The target percentage for fresh air mass flow is calculated as a function of engine speed (N) and an engine output torque request (TQI_DRIV).
摘要翻译： 发动机控制系统（32）通过校正新鲜空气的目标百分比和废气的目标百分比的策略（38）来分配发动机排出的废气中的烟雾和NOx，以重新计算新鲜空气质量流量的设定点。 根据发动机转速（N）和发动机输出扭矩请求（TQI_DRIV）计算新鲜空气质量流量的目标百分比。
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