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    • 5. 发明授权
    • Internal EGR control device for internal combustion engine
    • 内燃机内部EGR控制装置
    • US08396646B2
    • 2013-03-12
    • US12933557
    • 2009-02-17
    • Chiho ItogaKen OgawaToru Kitamura
    • Chiho ItogaKen OgawaToru Kitamura
    • F02B47/08F02M25/07
    • F02D35/02F02B1/12F02D13/0246F02D41/006F02D41/3035F02D41/3076F02D2041/001F02M26/01Y02T10/18Y02T10/47
    • There is provided an internal EGR control device for an internal combustion engine, which, even when a change in the actual valve timing of exhaust valves is caused by aging, is capable of properly controlling an internal EGR amount while compensating for an adverse influence caused by the change, and thereby properly controlling the temperature within the cylinder. The internal EGR control device 1 sets a target internal EGR amount EGRINCMD which serves a target of the internal EGR amount, according to detected operating conditions, NE and PMCMD, of the engine 3, and calculates internal energy QACT possessed by burned gases, which is determined according to the amount and temperature of the burned gases. Further, the target internal EGR amount EGRINCMD is corrected according to the calculated internal energy, and the valve-closing timing of the exhaust valve 9 is calculated according to the corrected internal EGR amount EGRIN. Further, the variable valve mechanism 60 is controlled based on the calculated valve-closing timing of the exhaust valve 9.
    • 提供了一种用于内燃机的内部EGR控制装置,其即使当由于老化而导致排气门的实际气门正时的变化时,也能够适当地控制内部EGR量,同时补偿由 改变,从而适当地控制气缸内的温度。 内部EGR控制装置1根据检测到的发动机3的运转条件NE和PMCMD,设定用于内部EGR量的目标的目标内部EGR量EGRINCMD,并计算燃烧气体所具有的内部能量QACT 根据燃烧气体的数量和温度确定。 此外,根据所计算的内部能量校正目标内部EGR量EGRINCMD,并且根据校正的内部EGR量EGRIN来计算排气门9的关闭正时。 此外,基于计算出的排气阀9的关闭正时来控制可变阀机构60。
    • 6. 发明授权
    • EGR control apparatus and method for internal combustion engine
    • 用于内燃机的EGR控制装置和方法
    • US07706958B2
    • 2010-04-27
    • US12005705
    • 2007-12-27
    • Chiho ItogaKen OgawaToru KitamuraToshinari Shinohara
    • Chiho ItogaKen OgawaToru KitamuraToshinari Shinohara
    • G06F19/00F02M25/07F02B47/08
    • F01L13/0063F01L1/185F01L1/20F01L1/344F01L2001/0537F01L2105/00F01L2800/00F01L2800/10F01L2820/02F02D13/0265F02D21/08F02M26/28F02M26/48F02M26/53Y02T10/18
    • An EGR control apparatus and method for an internal combustion engine which burns an air-fuel mixture with self ignition in addition to a flame propagation combustion, are provided for improving the combustion efficiency, engine output, drivability, and exhaust gas characteristics in an internal combustion engine which involves a self ignition combustion of an air-fuel mixture in addition to a flame propagation combustion. The EGR control apparatus comprises an ECU which selects one of a stratified self ignition mode, a stratified flame propagation combustion mode, and a homogeneous flame propagation combustion mode, sets a total target EGR amount and a target in-cylinder gas temperature in accordance with the selected combustion mode, calculates a target internal EGR amount in accordance with the value, calculates a target external EGR amount by subtracting the target internal EGR amount from the total target EGR amount, and controls the internal EGR amount and the external EGR amount to be the target internal EGR amount and the target external EGR amount, respectively, by driving three mechanisms.
    • 提供了一种用于内燃机的EGR控制装置和方法,其用于燃烧除了火焰传播燃烧之外的具有自点火的空气燃料混合物,以提高内燃中的燃烧效率,发动机输出,驾驶性能和排气特性 发动机除了火焰传播燃烧之外还涉及空燃混合物的自点燃燃烧。 EGR控制装置包括选择分层自点火模式,分层火焰传播燃烧模式和均匀火焰传播燃烧模式中的一种的ECU,根据该EGR控制装置设定总目标EGR量和目标缸内气体温度 选择燃烧模式,根据该值计算目标内部EGR量,通过从总目标EGR量减去目标内部EGR量来计算目标外部EGR量,并且将内部EGR量和外部EGR量控制为 目标内部EGR量和目标外部EGR量分别通过驱动三种机制。