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    • 1. 发明专利
    • Control device for engine
    • 发动机控制装置
    • JP2008008241A
    • 2008-01-17
    • JP2006181110
    • 2006-06-30
    • Nissan Motor Co Ltd日産自動車株式会社
    • KOGA TOSHIMASAISHIBASHI YASUTAKA
    • F02D43/00F01N3/02F01N3/24F01N3/28F02D9/02F02D23/00F02D41/12F02D45/00
    • Y02T10/144
    • PROBLEM TO BE SOLVED: To prevent a supercharger from shifting to its surge generation domain at the time of vehicular deceleration. SOLUTION: The control device includes a supercharger 21 driven by exhaust energy from an engine, an intake-throttle valve 18 disposed on the downstream side of a compressor 23 of the supercharger 21, a supercharging pressure control means 24 for controlling the supercharging pressure of the supercharger 21, and a throttle ratio control means 31 for controlling an opening of the intake throttle valve 18. The supercharging pressure control means 24 controls to decrease the supercharging pressure of the supercharger 21, and the throttle ratio control means 31 controls to reduce the opening of the intake throttle valve 18 with moderate-controlling the opening at the time of vehicular deceleration. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止增压器在车辆减速时转移到浪涌产生区域。 解决方案:控制装置包括由发动机的排气能量驱动的增压器21,设置在增压器21的压缩机23的下游侧的进气节流阀18,用于控制增压器的增压压力控制装置24 增压器21的压力,以及用于控制进气节流阀18的打开的节气门比控制装置31.增压控制装置24控制减小增压器21的增压压力,并且节流比控制装置31控制为 通过适度控制车辆减速时的开度来减小进气节流阀18的打开。 版权所有(C)2008,JPO&INPIT
    • 2. 发明专利
    • Exhaust gas after treatment device for diesel engine
    • 柴油发动机处理装置后的排气
    • JP2006052658A
    • 2006-02-23
    • JP2004233194
    • 2004-08-10
    • Nissan Motor Co Ltd日産自動車株式会社
    • OTAKE MAKOTOKAWASHIMA JUNICHITSUTSUMOTO NAOYAKONDO MITSUNORINAKANO MASAHIKOKOGA TOSHIMASAUENO SHOICHIRO
    • F01N3/02B01D46/42
    • PROBLEM TO BE SOLVED: To provide a device capable of diagnosing whether un-burnt material is accumulated around a filter front end surface, namely whether clogging of a filter front end surface has occurred or not. SOLUTION: This device is provided with a first particulate remaining regenerating quantity estimation means 11 estimating particulate remaining quantity remaining in a filter 4 during a current regeneration process or particulate regeneration quantity removed from the filter 4 during the current regeneration treatment based on pressure loss of the filter 4 detected by a pressure loss detection means 12, a second particulate remaining regenerating quantity estimation means 11 estimating particulate remaining quantity remaining in the filter 4 during a current regeneration process or particulate regeneration quantity removed from the filter 4 during the current regeneration treatment based on parameter other than pressure loss of the filter 4, and a means 11 determining whether front end surface clogging of the filter 4 occurs or not during the current regeneration process by comparing the two kinds of particulate remaining quantities or the two kinds of particulate regeneration quantities. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够诊断未烧焦材料是否累积在过滤器前端表面周围的装置,即是否已经发生过滤器前端表面的堵塞的装置。 解决方案:该装置设置有第一颗粒剩余再生量估计装置11,用于估计当前再生过程中过滤器4中残留的剩余量或基于压力在当前再生处理期间从过滤器4移除的颗粒再生量 由压力损失检测装置12检测到的过滤器4的损失,第二颗粒剩余再生量估计装置11估计在当前再生过程中剩余的过滤器4中残留的剩余量或在当前再生过程中从过滤器4移除的颗粒再生量 基于过滤器4的压力损失以外的参数的处理,以及通过比较两种颗粒剩余量或两种颗粒物来确定在当前再生过程中是否发生过滤器4的前端表面堵塞的装置11 再生量子 伊蒂埃斯。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Filter regenerating control device
    • 过滤器再生控制装置
    • JP2005120981A
    • 2005-05-12
    • JP2003359635
    • 2003-10-20
    • Nissan Motor Co Ltd日産自動車株式会社
    • KONDO MITSUNORIKAWASHIMA JUNICHITSUTSUMOTO NAOYAOTAKE MAKOTOINOUE TAKAOUENO SHOICHIROKOGA TOSHIMASA
    • F02D45/00B01D46/42F01N3/02F02D41/04
    • Y02T10/144Y02T10/47
    • PROBLEM TO BE SOLVED: To suppress the rapid temperature rise of a filter right after regenerating the filter. SOLUTION: This filter regenerating control device comprises the filter 11 provided in an exhaust system 32 for a diesel engine 20 for trapping particulates in exhaust gas, a trapped amount estimating means 16 for estimating the trapped amount of the particulates, a target temperature setting means 16 for setting the target temperature of the filter 11, when regenerated, to gradually rise depending on the trapped amount of the particulates, means 14, 15 for detecting the temperature of the filter 11, and a regenerating means 10 for regenerating the filter 11 with its temperature elevated to the target temperature when a regenerating timing for the filter 11 is matured. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了在再生过滤器之后抑制过滤器的快速升温。 解决方案:该过滤器再生控制装置包括设置在柴油发动机20的排气系统32中用于捕集废气中的微粒的过滤器11,用于估计微粒被捕获量的捕获量估计装置16,目标温度 设置装置16,用于设置过滤器11的目标温度,当再生时,根据微粒的捕获量逐渐上升,用于检测过滤器11的温度的装置14,15;以及用于再生过滤器的再生装置10 11,当过滤器11的再生定时成熟时,其温度升高到目标温度。 版权所有(C)2005,JPO&NCIPI
    • 4. 发明专利
    • Filter regeneration control device of diesel engine
    • 柴油发动机过滤器再生控制装置
    • JP2005090358A
    • 2005-04-07
    • JP2003325034
    • 2003-09-17
    • Nissan Motor Co Ltd日産自動車株式会社
    • INOUE TAKAOKAWASHIMA JUNICHITSUTSUMOTO NAOYAOTAKE MAKOTOKONDO MITSUNORIUENO SHOICHIROKOGA TOSHIMASA
    • F02D45/00B01D46/42F01N3/02F01N3/023F01N3/035F01N9/00F02B3/06F02B37/00F02D41/02F02D41/22F02D41/38F02D41/40F02M25/07
    • F01N9/005F01N3/023F01N3/035F01N9/002F02B3/06F02B37/00F02B2275/14F02D41/029F02D41/1448F02D2200/0812F02M26/05Y02T10/47
    • PROBLEM TO BE SOLVED: To accurately guess a particulate collection quantity, by using inlet and outlet differential pressure of a filter, even after partial regeneration. SOLUTION: This filter regeneration control device of a diesel engine has the filter 11 arranged in an exhaust system 32 of the diesel engine 20, and collecting particulates in exhaust gas, a pressure difference measuring means for detecting the inlet and outlet differential pressure of the filter, a particulate collection quantity guessing means 16 for guessing the particulate collection quantity of the filter 11 on the basis of the inlet and outlet differential pressure, and a regenerating means 10 for burning the particulates when a guessing value of the particulate collection quantity becomes a prescribed value or more. The particulate collection quantity guessing means 16 is composed of a first particulate collection quantity map used when regeneration is complete regeneration for burning the whole of the particulate collection quantity, and a second particulate collection quantity map used when the regeneration is the partial regeneration for burning a part of the particulate collection quantity, by guessing the particulate collection quantity on the basis of the inlet and outlet pressure difference of the filter. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:即使在部分再生之后,也可以通过使用过滤器的入口和出口压差来精确地猜测颗粒收集量。 解决方案:柴油发动机的过滤器再生控制装置具有布置在柴油发动机20的排气系统32中的过滤器11和收集废气中的微粒,用于检测入口和出口压差的压力差测量装置 的过滤器,用于根据入口和出口压差猜测过滤器11的颗粒收集量的颗粒收集量猜测装置16,以及当颗粒物收集量的猜测值时燃烧颗粒的再生装置10 成为规定值以上。 颗粒收集量猜测装置16由用于燃烧整个颗粒收集量的再生完全再生时使用的第一颗粒收集量图和当再生是用于燃烧的部分再生时使用的第二颗粒收集量图 通过基于过滤器的入口和出口压力差猜测颗粒收集量的一部分颗粒收集量。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Exhaust emission control device
    • 排气排放控制装置
    • JP2009209788A
    • 2009-09-17
    • JP2008053861
    • 2008-03-04
    • Nissan Motor Co Ltd日産自動車株式会社
    • KOGA TOSHIMASA
    • F01N3/02B01D53/94
    • PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of considering PM (particulate matters) combustion quantity while an internal combustion engine is not in operation.
      SOLUTION: The exhaust emission control device has a structure including a PM collecting filter arranged in an exhaust system of the internal combustion engine for collecting PM contained in exhaust emission, a stop-time PM combustion information storing means (Fig.4A) for storing at least a stop-time filter temperature of the PM collecting filter obtained when operation of the internal combustion engine is stopped and an off-time PM combustion quantity calculation means (Fig.4B) for estimating an off-time PM combustion quantity which is the quantity of PM burnt in the PM collecting filer while the engine is stopped when the internal combustion engine restarts its operation based on the stop-time filter temperature and a start-time filter temperature of the PM collecting filter acquired at a start time.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种在内燃机不工作时能够考虑PM(颗粒物)燃烧量的废气排放控制装置。 解决方案:废气排放控制装置具有包括布置在内燃机的排气系统中用于收集废气排放中的PM的PM收集过滤器的结构,停止时间PM燃烧信息存储装置(图4A) 用于至少存储当停止内燃机的运转时获得的PM收集过滤器的停止时间过滤器温度,以及用于估计非正时PM燃烧量的关闭时间PM燃烧量计算装置(图4B) 是当内燃机根据停止时间过滤器温度和在开始时获取的PM收集过滤器的启动时间过滤器温度而重新起动发动机停止发动机时PM的燃烧量。 版权所有(C)2009,JPO&INPIT
    • 8. 发明专利
    • Exhaust emission control device for internal combustion engine
    • 用于内燃机的排气排放控制装置
    • JP2009180216A
    • 2009-08-13
    • JP2008022902
    • 2008-02-01
    • Nissan Motor Co Ltd日産自動車株式会社
    • NAKANO MASAHIKOKOGA TOSHIMASA
    • F01N3/02B01D46/42F01N3/18
    • PROBLEM TO BE SOLVED: To shorten a period required for the regeneration processing of a PM filter, and to effectively inhibit the deterioration of fuel economy accompanied by the regeneration processing of the PM filter. SOLUTION: When a PM accumulation quantity reaches a regeneration start threshold (first prescribed quantity), a temperature of a DPF is raised and DPF regeneration processing is executed (S21-S23). A regeneration waste time from start of a rise of a temperature of the DPF until a temperature of the DPF reaches PM combustion temperature is measured and DPF regeneration temperature is detected (S24-S28). A regeneration completion threshold (second prescribed quantity) is set based on the regeneration waste time and a DPF regeneration temperature (S29). DPF regeneration processing is completed when the PM accumulation quantity calculated during regeneration processing is reduced to the regeneration completion threshold (S30-S31). COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了缩短PM过滤器的再生处理所需的时间,并且有效地抑制伴随着PM过滤器的再生处理的燃料经济性的劣化。 解决方案:当PM累积量达到再生开始阈值(第一规定量)时,DPF的温度上升,并且执行DPF再生处理(S21-S23)。 测量从DPF的温度升高到DPF的温度达到PM燃烧温度之前的再生废气时间,并检测DPF再生温度(S24-S28)。 基于再生废弃时间和DPF再生温度来设定再生完成阈值(第二规定量)(S29)。 当再生处理中计算的PM累积量降低到再生完成阈值时,DPF再生处理结束(S30-S31)。 版权所有(C)2009,JPO&INPIT