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    • 1. 发明公开
    • CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    • STEUERUNGSVORRICHTUNGFÜREINEN VERBRENNUNGSMOTOR
    • EP2620626A4
    • 2017-03-01
    • EP10857541
    • 2010-09-23
    • TOYOTA MOTOR CO LTD
    • ANZAWA TAKUMIMARUYAMA KENYA
    • F02D45/00F02D41/00F02P5/14
    • F02M25/08F02D37/02F02D41/0042F02D41/0047F02D41/0052F02D41/0055F02D41/18F02D2041/001F02D2200/0402F02D2200/0411F02D2200/0414F02D2200/0416F02P5/1516Y02T10/46Y02T10/47
    • Disclosed is a control device applied to an internal combustion engine provided with a fuel vapor treatment system for treating collected fuel vapor by purging the collected fuel vapor into intake air downstream from an air flowmeter (6) and an exhaust gas recirculation system for recirculating part of exhaust gas in the intake air using intake negative pressure. An electronic control unit (22) performs an advance correction corresponding to the exhaust gas recirculation quantity regarding the MBT ignition timing and the knock limit ignition timing, and corrects the volumetric efficiency of the internal combustion engine, which is used for the calculation of the advance correction quantity used for the advance correction, according to the purge air quantity. Consequently, regardless of the decrease of the exhaust gas recirculation quantity caused by the implementation of a large quantity of purge, the appropriate advance corrections of the MBT ignition timing and the knock limit ignition timing become possible.
    • 本发明公开了一种应用于内燃机的控制装置,所述内燃机设有用于通过将收集的燃料蒸汽吹扫为空气流量计(6)下游的吸入空气来处理收集的燃料蒸气的燃料蒸汽处理系统,以及用于使部分再循环 使用进气负压的进气中的废气。 电子控制单元(22)对MBT点火正时和爆震临界点火正时进行与排气再循环量对应的提前修正,修正用于推进的计算的内燃机的容积效率 根据净化空气量,用于提前校正的校正量。 因此,不管由于实施大量净化而导致的排气再循环量的减少,MBT点火正时和爆震极限点火正时的适当提前校正变为可能。
    • 3. 发明公开
    • A method for estimating the oxygen concentration in internal combustion engines
    • Verbrennungsmotoren的Verfahren zurSchätzungder Sauerstoffkonzentration
    • EP2098710A1
    • 2009-09-09
    • EP08003962.1
    • 2008-03-04
    • GM Global Technology Operations, Inc.
    • Vennettili, NandoMaira, Massimiliano
    • F02D41/18F02D43/00F02D21/08
    • F02D41/18F02D41/0072F02D2041/1416F02D2041/1432F02D2200/0402F02D2200/0406F02D2200/0408F02D2200/0416F02M26/47
    • A method for estimating the oxygen concentration in an internal combustion engine comprising an intake manifold, an exhaust manifold, an EGR system, a throttle valve, an air mass sensor for measuring a fresh air flow ( ṁ thr ) entering the intake manifold through the throttle valve, a plurality of cylinders. According to the invention the method comprises the steps of estimating the total gas flow ( ṁ o ) entering the cylinders, calculating the EGR gas flow ( ṁ egr ), calculating the air fraction (f _air_em ) of the gas flowing in the exhaust manifold, calculating the air mass (m im_air ) entering the cylinders based on the air fraction (f _air_em ) in the exhaust manifold, on the total gas flow ( ṁ o ) entering the cylinders, on the EGR gas flow ( ṁ egr ) and on the fresh air flow ( ṁ thr ), calculating the total mass (m im ) in the intake manifold based on the fresh air flow ( ṁ thr ), on the EGR gas flow ( ṁ egr ) and on the total gas flow ( ṁ o ) entering the cylinders, calculating the air fraction (f air_im ) in the intake manifold based on the air mass (m im_air ) entering the cylinders and the total mass (m im ) in the intake manifold, and calculating the oxygen mass concentration ([O 2 ] m _ im ) in the intake manifold based on the air fraction (f air_im ) in the intake manifold.
    • 一种用于估计内燃机中的氧浓度的方法,包括进气歧管,排气歧管,EGR系统,节流阀,用于测量通过节气门进入进气歧管的新鲜空气流量(m thr)的空气质量传感器 阀,多个气缸。 根据本发明,该方法包括以下步骤:估计进入气缸的总气体流量(mo),计算EGR气体流量(m egr),计算在排气歧管中流动的气体的空气分数(f_air_em),计算 基于排气歧管中的空气分数(f _air_em),进入气缸的总气体流量(mo),EGR气体流量(m egr)和新鲜空气的气体质量(m im_air) 流量(m thr),基于新鲜空气流量(m thr),对EGR气体流量(m egr)和进入气缸的总气体流量(mo)计算进气歧管中的总质量(m im) 基于进入气缸的空气质量(m im_air)和进气歧管中的总质量(m im)计算进气歧管中的空气分数(f air_im),并计算氧气质量浓度([O 2] m 基于进气歧管中的空气分数(f air_im)在进气歧管中。