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公开(公告)号：US20100313854A1
公开(公告)日：2010-12-16
申请号：US12521571
申请日：2007-12-10
IPC分类号： F02M51/00
CPC分类号： F02D41/3845 , F02D41/40 , F02M47/027 , F02M57/025 , F02M59/105 , F02M63/0007 , F02M63/0225 , Y02T10/44
摘要： In a common rail internal combustion engine having a pressure increase mechanism, when the pressure increase mechanism is activated, fuel is injected according to a target injection quantity determined by adding an increase in injection quantity calculated depending on a load on a supply pump to a demanded injection quantity.
摘要翻译： 在具有增压机构的共轨内燃机中，当增压机构启动时，根据通过将根据供给泵上的负荷而计算的喷射量的增加量加到所要求的喷射量而确定的目标喷射量来喷射燃料 注射量。
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公开(公告)号：US20060118090A1
公开(公告)日：2006-06-08
申请号：US11269517
申请日：2005-11-08
申请人： Keiki Tanabe , Shinji Nakayama , Susumu Kohketsu
发明人： Keiki Tanabe , Shinji Nakayama , Susumu Kohketsu
CPC分类号： F02M57/025 , F02M45/12 , F02M47/027 , F02M59/366 , F02M63/0225
摘要： Immediately before fuel pressure is increased by a pressure-increase mechanism, a pressure-increase control valve of each cylinder is opened in timing that does not overlap the timing of opening of an injection control valve, and the period of time for which the pressure-increase control valves is opened is gradually increased. As a result, it is possible to prevent the quantity of fuel consumed by the pressure-increase mechanism from rapidly increasing when the increase of fuel pressure is started.
摘要翻译： 在通过增压机构增加燃料压力之前，每个气缸的增压控制阀在不与喷射控制阀的打开正时重叠的定时打开，并且压力 - 增加控制阀打开逐渐增加。 结果，当燃料压力的增加开始时，可以防止由增压机构消耗的燃料量迅速增加。
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公开(公告)号：US20060112681A1
公开(公告)日：2006-06-01
申请号：US11264359
申请日：2005-11-01
CPC分类号： F02D41/0275 , F01N3/0807 , F01N3/0842 , F01N3/206 , F01N11/00 , F01N2430/06 , F01N2430/085 , F01N2550/05 , F02D41/1441 , F02D41/22 , F02D41/3836 , F02D41/405 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： An exhaust emission control device of an internal combustion engine includes a fuel supply unit provided in a fuel supply passage, for supplying a reducing agent directly to a NOx trap catalytic converter; an addition pressure detection unit for detecting the supply pressure of the reducing agent supplied by the fuel supply unit; and a controller for calculating the amount of NOx adsorbed by the catalytic converter. When the supply pressure of the reducing agent is almost zero, the controller prohibits calculation of NOx adsorption amount depending on the supply of the reducing agent, creates a rich state in a cylinder, carries out calculation of NOx adsorption amount depending on the created rich state, and causes release and reduction of the adsorbed NOx.
摘要翻译： 内燃机的废气排放控制装置包括：燃料供给单元，其设置在燃料供给路径中，用于将还原剂直接供给到NOx捕集催化转化器; 添加压力检测单元，用于检测由燃料供给单元供应的还原剂的供给压力; 以及用于计算催化转化器吸附的NOx的量的控制器。 当还原剂的供给压力几乎为零时，控制器禁止根据还原剂的供给来计算NOx吸附量，在气缸中产生浓的状态，根据所产生的富态进行NOx吸附量的计算 并且引起吸附的NOx的释放和还原。
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4.发明申请公开(公告)号：US20060064968A1
公开(公告)日：2006-03-30
申请号：US11234432
申请日：2005-09-23
CPC分类号： F02D41/1441 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/03 , F02D41/1446 , F02D41/187 , F02D2200/0806 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： There is provided an apparatus that estimates the NOx adsorption amount, comprising a NOx trap catalyst that is disposed in an exhaust passage of an engine, for adsorbing NOx in exhaust gases during lean operation and releasing and reducing the adsorbed NOx during rich operation, an operation unit that computes an amount of emission from the catalyst during rich operation by using a map or a polynomial equation that reflects emissions from the catalyst based on the exhaust gas temperature and the exhaust gas flow rate of the exhaust passage and the excess-air factor upstream of the catalyst, and an estimating unit that estimates an amount of adsorption in the NOx trap catalyst from the computed emission amount.
摘要翻译： 提供了一种估计NOx吸附量的装置，其包括设置在发动机的排气通道中的NOx捕集催化剂，用于在稀薄操作期间吸附废气中的NOx，并且在富运行期间释放和减少吸附的NOx，操作 单元，其通过使用基于排气通道的排气温度和排气流量和过量空气系数上游的催化剂的排放的映射或多项式方程式计算在富运行期间来自催化剂的排放量 的催化剂，以及估计单元，其从所计算的排放量估计NOx捕集催化剂中的吸附量。
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公开(公告)号：US07225794B2
公开(公告)日：2007-06-05
申请号：US11269517
申请日：2005-11-08
申请人： Keiki Tanabe , Shinji Nakayama , Susumu Kohketsu
发明人： Keiki Tanabe , Shinji Nakayama , Susumu Kohketsu
IPC分类号： F02M37/04
CPC分类号： F02M57/025 , F02M45/12 , F02M47/027 , F02M59/366 , F02M63/0225
摘要： Immediately before fuel pressure is increased by a pressure-increase mechanism, a pressure-increase control valve of each cylinder is opened in timing that does not overlap the timing of opening of an injection control valve, and the period of time for which the pressure-increase control valves is opened is gradually increased. As a result, it is possible to prevent the quantity of fuel consumed by the pressure-increase mechanism from rapidly increasing when the increase of fuel pressure is started.
摘要翻译： 在通过增压机构增加燃料压力之前，每个气缸的增压控制阀在不与喷射控制阀的打开正时重叠的定时打开，并且压力 - 增加控制阀打开逐渐增加。 结果，当燃料压力的增加开始时，可以防止由增压机构消耗的燃料量迅速增加。
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公开(公告)号：US20060112934A1
公开(公告)日：2006-06-01
申请号：US11094470
申请日：2005-03-31
申请人： Keiki Tanabe , Shinji Nakayama , Susumu Kouketsu
发明人： Keiki Tanabe , Shinji Nakayama , Susumu Kouketsu
IPC分类号： F02M57/02
CPC分类号： F02D41/3872 , F02D41/3845 , F02D2200/0602 , F02D2250/31 , F02M47/027 , F02M57/025
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit comprises a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A controller has an indication-value setting step of setting an indication value of a target pressure in a common rail in correspondence to an engine operation state, a determination step of determining whether or not the indication value of the pressure in the common rail is in a direction of reduction to be lower in comparison to a previously set indication value, and a step of prolonging an open time of a discharge valve of the booster unit when the determination step has determined that the indication value is in the direction of reduction.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 控制器具有指示值设定步骤，对应于发动机运转状态，设定共轨中的目标压力的指示值，确定步骤，确定共轨中压力的指示值是否在 减速方向与先前设定的指示值相比较低，以及当确定步骤已经确定指示值处于减小方向时，延长升压单元的排出阀的打开时间的步骤。
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公开(公告)号：US06792917B2
公开(公告)日：2004-09-21
申请号：US10413555
申请日：2003-04-15
申请人： Susumu Kohketsu , Shinji Nakayama , Keiki Tanabe
发明人： Susumu Kohketsu , Shinji Nakayama , Keiki Tanabe
IPC分类号： F02M3704
CPC分类号： F02M45/12 , F02D41/3836 , F02D41/401 , F02M45/04 , F02M51/061 , F02M57/025 , F02M59/105 , Y02T10/44
摘要： A pressure-elevating type fuel injecting system pressurizes high pressure fuel from a pressure accumulating chamber using a pressure-elevating mechanism and injects the pressure-elevated fuel into combustion chambers by injectors. The pressure-elevating type fuel injecting system comprises a target fuel injection quantity setting unit which sets a target fuel injection quantity, a time difference setting unit which sets a time difference between a timing for opening an injector electromagnetic valve and a timing for operating an pressure-elevating mechanism electromagnetic valve, an initial fuel injection quantity calculating unit calculating an initial fuel injection quantity on the basis of a time-dependent variation of fuel pressure and the time difference, and a final injection period setting unit which calculates an operation period of the injector electromagnetic valve, on the basis of a final fuel injection quantity and the time-dependent variation of the pressure of the pressure-elevated fuel.
摘要翻译： 升压型燃料喷射系统使用升压机构对来自蓄压室的高压燃料加压，并且通过喷射器将升压燃料喷射到燃烧室。 升压型燃料喷射系统包括设定目标燃料喷射量的目标燃料喷射量设定单元，设定打开喷射器电磁阀的定时与操作压力的定时之间的时间差的时间差设定单元 - 升降机构电磁阀，初始燃料喷射量计算单元，基于燃料压力和时间差的时间相关变化来计算初始燃料喷射量，以及最终喷射周期设定单元，其计算 基于最终燃料喷射量和升压燃料的压力随时间变化的喷射器电磁阀。
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公开(公告)号：US06543420B2
公开(公告)日：2003-04-08
申请号：US10108894
申请日：2002-03-29
申请人： Susumu Kohketsu , Keiki Tanabe , Shinji Nakayama
发明人： Susumu Kohketsu , Keiki Tanabe , Shinji Nakayama
IPC分类号： F02M4502
CPC分类号： F02D41/3836 , F01N13/009 , F01N2250/02 , F02B3/06 , F02D41/3854 , F02D41/405 , F02D2041/3881 , F02D2041/389 , F02D2200/0602 , F02D2200/602 , F02D2250/31 , F02M45/02 , F02M47/027 , Y02T10/44
摘要： In a common rail system comprised of a first accumulator storing high-pressure fuel and a second accumulator storing low-pressure fuel, additional fuel is injected when a fuel pressure in a fuel passage or in the second accumulator (low inlet pressure of an injector) is reduced to a low pressure approximate to the pressure of the low-pressure fuel stored in the second accumulator after a switching valve is operated for disconnection from the fuel passage (switching valve drive signal OFF) at a point in time when a main injection control device finishes the injection of fuel (injector drive signal OFF) or after the main injection control device finishes the injection of fuel. This keeps the fuel pressure as low as possible during post injection to prevent the fuel from adhering to the wall surfaces of cylinder liners.
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9.发明授权公开(公告)号：US07395658B2
公开(公告)日：2008-07-08
申请号：US11234432
申请日：2005-09-23
IPC分类号： F01N3/00
CPC分类号： F02D41/1441 , F01N3/0842 , F01N3/0871 , F01N11/00 , F01N2550/03 , F02D41/1446 , F02D41/187 , F02D2200/0806 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： There is provided an apparatus that estimates the NOx adsorption amount, comprising a NOx trap catalyst that is disposed in an exhaust passage of an engine, for adsorbing NOx in exhaust gases during lean operation and releasing and reducing the adsorbed NOx during rich operation, an operation unit that computes an amount of emission from the catalyst during rich operation by using a map or a polynomial equation that reflects emissions from the catalyst based on the exhaust gas temperature and the exhaust gas flow rate of the exhaust passage and the excess-air factor upstream of the catalyst, and an estimating unit that estimates an amount of adsorption in the NOx trap catalyst from the computed emission amount.
摘要翻译： 提供了一种估计NOx吸附量的装置，其包括设置在发动机的排气通道中的NOx捕集催化剂，用于在稀薄操作期间吸附废气中的NOx，并且在富运行期间释放和减少吸附的NOx，操作 单元，其通过使用基于排气通道的排气温度和排气流量和过量空气系数上游的催化剂的排放的映射或多项式方程式计算在富运行期间来自催化剂的排放量 的催化剂，以及估计单元，其从所计算的排放量估计NOx捕集催化剂中的吸附量。
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公开(公告)号：US20050268888A1
公开(公告)日：2005-12-08
申请号：US11094477
申请日：2005-03-31
申请人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
发明人： Shinji Nakayama , Susumu Kouketsu , Keiki Tanabe
IPC分类号： F02M47/00 , F02D41/04 , F02D41/38 , F02M1/00 , F02M47/02 , F02M51/00 , F02M57/02 , F02M59/10 , F02M59/46 , F02M61/20 , F02M63/00 , F02M63/02
CPC分类号： F02M63/0043 , F02D41/3872 , F02M47/027 , F02M57/025 , F02M59/105 , F02M61/205 , F02M63/0225
摘要： A booster unit is provided in an injector of a fuel injection system. The booster unit includes a booster piston accommodated in a pressure chamber, and a discharge valve capable of discharging fuel in a backpressure chamber. A controller includes an indication-value setting step which sets an indication value of a target pressure in a common rail in correspondence to an engine operation state, a determination step which determines whether or not the indication value of the pressure in the common rail is in a direction of reduction to be lower in comparison to a previously set indication value, and a booster piston pseudo-operation step which opens the discharge valve at timing other than injection operation of the injector when the determination step has determined that the indication value is in the direction of reduction.
摘要翻译： 在燃料喷射系统的喷射器中设置增压单元。 升压单元包括容纳在压力室中的增压活塞和能够在背压室中排出燃料的排出阀。 指示值设定步骤，根据发动机的运转状态，设定共轨中的目标压力的指示值，判定步骤，判断共轨中的压力的指示值是否在 减速方向与先前设定的指示值相比较低;以及增压器活塞伪操作步骤，当所述确定步骤已经确定所述指示值处于所述指示值时，在所述喷射器的喷射操作之外的定时打开所述排出阀 减少的方向。
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