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    • 31. 再颁专利
    • Exhaust gas purification system of internal combustion engine
    • 内燃机废气净化系统
    • USRE42056E1
    • 2011-01-25
    • US09945835
    • 2001-09-05
    • Shusuke AkazakiKohei HanadaYuji YasuiTadashi SatohTakashi Haga
    • Shusuke AkazakiKohei HanadaYuji YasuiTadashi SatohTakashi Haga
    • F02M25/06
    • B01D53/9495B01D53/9445B01D53/9486B01D53/96B01D2253/108B01D2253/3425F01N3/0835F01N3/0871F01N3/0878F01N9/00F01N13/009F01N13/0097F01N2240/36F01N2250/12F01N2370/40F01N2410/00F01N2410/12F02D9/04F02D9/1055F02D21/08F02M26/15F02M26/46F02M26/49Y02T10/20Y02T10/22Y02T10/47
    • A system for purifying exhaust gas generated by an internal combustion engine including a bypass branching out from the exhaust pipe downstream of a catalyst and merging to the exhaust pipe, an adsorber installed in the bypass, a bypass valve member which closes the bypass, and an EGR conduit connected to the bypass at one end and connected to the air intake system for recirculating the exhaust gas to the air intake system. The bypass valve member is opened for a period after engine startup to introduce the exhaust gas such that the adsorber installed in the bypass adsorbs the unburnt HC component in the exhaust gas. The adsorber adsorbs the HC component when the exhaust temperature rises and the adsorbed component is recirculated to the air intake system through the EGR conduit. In the system, the bypass valve is provided at or close to the branching point in the exhaust pipe and a chamber is provided close to the branching point such that the conduit is connected to the bypass at the one end in the chamber. The bypass valve member is combined with an exhaust pipe valve member as a combination valve such that when the bypass valve member closes the bypass, the exhaust pipe valve member opens the exhaust pipe. With the arrangement, the system can effectively prevent the exhaust pipe from being clogged even when a valve for closing a bypass is stuck in the closed position. At the same time, the system can provide a relatively short EGR conduit for recirculating unburnt HC component adsorbed from the adsorber and the adsorption and desorption are conducted optimally.
    • 一种用于净化由内燃机产生的废气的系统,所述内燃机包括从催化剂下游的排气管分支出并与排气管并流的旁路,安装在旁路中的吸附器,关闭旁路的旁通阀构件,以及 EGR管道在一端连接到旁路,并连接到进气系统,用于将废气再循环到进气系统。 旁通阀构件在发动机启动后打开一段时间以引入废气,使得安装在旁路中的吸附器吸附废气中的未燃HC组分。 当排气温度升高时,吸附器吸附HC组分,吸附组分通过EGR导管再循环到进气系统。 在该系统中,旁通阀设置在排气管中的分支点处或其附近,并且在靠近分支点设置室,使得导管在腔室的一端连接到旁路。 旁通阀构件与作为组合阀的排气管阀构件组合,使得当旁通阀构件关闭旁路时,排气管阀构件打开排气管。 通过这样的结构,即使关闭旁路的阀卡在闭合位置,也能够有效地防止排气管堵塞。 同时,该系统可以提供相对较短的EGR导管,用于再循环吸附器吸附的未燃烧的HC组分,吸附和解吸是最佳的。
    • 33. 发明授权
    • Plant control system
    • 工厂控制系统
    • US07698051B2
    • 2010-04-13
    • US11664703
    • 2005-09-22
    • Yuji Yasui
    • Yuji Yasui
    • F02D41/00
    • F02D41/0007F01L1/20F01L1/352F01L13/0063F01L2105/00F01L2820/02F02D13/0207F02D13/0219F02D15/02F02D41/1403F02D41/1408F02D2041/001F02P5/045G05B5/01G05B13/021G05B13/022Y02T10/144Y02T10/18
    • In a system for controlling a plant (engine) 10 having an input u, there are provided with applying device (vibration signal) 100 for applying a component p that changes at a predetermined cycle to the plant, parameter calculating device (Washout Filter) 102 for calculating a parameter h based on an output y of the plant, integrating device (finite interval integrator) 104 for integrating a value j obtained by multiplying the calculated parameter h by the applied component p in an interval of integral multiple of a cycle of the component p, and input calculating devices (infinite interval integrator 106a, multiplier 106b, adder 106c) for calculating the input u based on the integrated value g obtained by the integration. Owing to this configuration, it becomes possible to provide a system that can optimize the output y, while preventing the resonance of the control system while, thereby enabling to control the output of the plant to the extremum point.
    • 在用于控制具有输入u的设备(发动机)10的系统中,设置有施加装置(振动信号)100,用于将以预定周期改变的部件p施加到工厂,参数计算装置(冲洗过滤器)102 用于基于工厂的输出y计算参数h,积分装置(有限间隔积分器)104,用于积分通过将所计算的参数h与所施加的分量p乘以所计算的参数h乘以的周期的整数倍的间隔而获得的值j 分量p和输入计算装置(无限间隔积分器106a,乘法器106b,加法器106c),用于基于通过积分获得的积分值g来计算输入u。 由于这种构造,可以提供一种可以优化输出y同时防止控制系统共振的系统,从而能够将设备的输出控制到极值点。
    • 35. 发明授权
    • Control system for internal combustion engine
    • 内燃机控制系统
    • US07593805B2
    • 2009-09-22
    • US11665855
    • 2005-09-27
    • Kanako ShimojoYuji Yasui
    • Kanako ShimojoYuji Yasui
    • G06F19/00F01L1/34F02B75/12
    • F02D13/0226F01L1/181F01L1/185F01L1/20F01L13/0063F01L2001/0537F01L2105/00F01L2800/00F01L2820/032Y02T10/18
    • To provide a control system for an internal combustion engine, which is capable of attaining both the securing of excellent drivability and the reduction of impact occurring when a movable part abuts against a restriction part at the same time. The control system 1 includes a variable valve lift mechanism 50 that changes a valve lift Liftin, and includes a restriction part 67a for having a movable part 65 abut thereagainst for restricting the valve lift Liftin such that it does not exceed a predetermined limit lift Liftin_L, and a variable intake air amount mechanism 11 that changes the intake air amount. The control system calculates a control input ULiftin for control of the variable valve lift mechanism 50, with a predetermined control algorithm including a disturbance suppression parameter POLE_lf (step 54), such that the valve lift Liftin follows up the target valve lift Liftin_cmd. When a determination that the movable part 65 has abutted against the restriction part 67a is made, the control system sets the disturbance suppression parameter POLE_lf such that the degree of suppression of the disturbance thereby becomes smaller than before the determination (step 73).
    • 提供一种用于内燃机的控制系统,其能够同时确保优异的驾驶性能和减少当可动部件同时抵靠限制部件时发生的冲击。 控制系统1包括改变气门升程升降机构的可变气门升程机构50,并且包括限制部分67a,用于使可动部分65靠在其上以限制气门升程Liftin使其不超过预定的限位升程Liftin_L, 以及改变进气量的可变进气量机构11。 控制系统使用包括干扰抑制参数POLE_lf(步骤54)的预定控制算法来计算用于控制可变气门升程机构50的控制输入ULiftin,使得气门升程Liftin跟随目标气门升程Liftin_cmd。 当确定可移动部分65已经抵靠限制部分67a时,控制系统设置干扰抑制参数POLE_lf,使得干扰的抑制程度变得比确定之前变小(步骤73)。
    • 36. 发明授权
    • Intake air amount control system for internal combustion engine
    • 内燃机进气量控制系统
    • US07568454B2
    • 2009-08-04
    • US10574804
    • 2004-10-13
    • Yuji YasuiNoriaki FujiiHisao Sakai
    • Yuji YasuiNoriaki FujiiHisao Sakai
    • F01L1/34
    • F02D13/0226F01L1/18F01L1/185F01L1/34F01L1/352F01L13/0063F01L2105/00F01L2800/00F01L2820/02F01L2820/032F02D13/0238F02D41/0002F02D41/1403F02D2041/001F02D2041/1415F02D2041/1418Y02T10/18Y02T10/42
    • There is provided an intake air amount control system for an internal combustion engine, which controls the amount of intake air by executing both cam phase control and valve lift control, and is capable of enhancing response and accuracy of the intake air amount control, while avoiding interaction between the cam phase control and the valve lift control. In the intake air amount control system 1, an ECU 2 controls the amount of intake air according to a target valve lift Liftin_cmd and a target cam phase Cain_cmd. The Liftin_cmd and Cain_cmd are respectively calculated as the sums of master values Liftin_cmd_ms and Cain_cmd_ms for causing an actual intake air amount Gcyl to converge to a target intake air amount Gcyl_cmd, and slave values Liftin_cmd_sl and Cain_cmd_sl set according to the master values Liftin_cmd_ms and Cain_cmd_ms (steps 56 and 64). In a lift master mode, Cain_cmd_ms is set such that Cain_cmd_ms=0 holds (step 63), and in a phase master mode, Liftin_cmd_ms is set such that Liftin_cmd_ms=0 holds (step 55).
    • 提供了一种用于内燃机的进气量控制系统,其通过执行凸轮相位控制和气门升程控制来控制进气量,并且能够提高进气量控制的响应和精度,同时避免 凸轮相位控制和气门升程控制之间的相互作用。 在进气量控制系统1中,ECU2根据目标气门升程Liftin_cmd和目标凸轮相位Cain_cmd来控制进气量。 Liftin_cmd和Cain_cmd分别计算为主值Liftin_cmd_ms和Cain_cmd_ms的总和,以使实际进气量Gcyl收敛到目标进气量Gcyl_cmd,并且根据主值Liftin_cmd_ms和Cain_cmd_ms设置从属值Liftin_cmd_s1和Cain_cmd_sl 步骤56和64)。 在升降机主模式中,设定Cain_cmd_ms使得Cain_cmd_ms = 0成立(步骤63),并且在相位主模式中,设置Liftin_cmd_ms使得Liftin_cmd_ms = 0成立(步骤55)。
    • 37. 发明申请
    • Apparatus and Method for Calculating Work Load of Engine
    • 发动机工作负荷计算装置及方法
    • US20090132144A1
    • 2009-05-21
    • US11665054
    • 2005-09-29
    • Koichiro ShinozakiYuji YasuiKatsura OkuboMasahiro Sato
    • Koichiro ShinozakiYuji YasuiKatsura OkuboMasahiro Sato
    • F02D45/00G01M15/08F02D15/02
    • F02D35/023F02D15/02F02D41/1497F02D2041/288
    • Work done by an engine can be accurately calculated regardless of the part in an observation section where the cylinder internal pressure signal is detected. The apparatus for calculating the work done by an engine establishes in advance correlation of phase between the cylinder internal pressure of the engine and a reference signal composed of a predetermined frequency component as a reference phase relation. A means for detecting the cylinder internal pressure of the engine for a predetermined observation section is provided. A reference signal corresponding to the detected cylinder internal pressure of the engine is calculated so that the reference phase relation is satisfied. A correlation coefficient of the detected cylinder internal pressure of the engine and the calculated reference signal is calculated for the observation section and the work done by the engine is calculated in accordance with the correlation coefficient.
    • 无论检测到气缸内部压力信号的观察部分中的部分如何,都可以精确地计算发动机的作业。 用于计算由发动机完成的作业的装置预先将发动机的气缸内部压力与由预定频率分量组成的参考信号之间的相位相关,作为参考相位关系。 提供了一种用于检测用于预定观察部分的发动机的气缸内部压力的装置。 计算与检测到的发动机气缸内部压力相对应的参考信号,使得满足基准相位关系。 对于观测部分计算检测到的发动机气缸内部压力和计算出的参考信号的相关系数,并根据相关系数计算发动机完成的功率。
    • 38. 发明授权
    • Device and method for controlling internal combustion engine with universal valve gear system and variable compressing mechanism
    • 用通用阀门齿轮系统和可变压缩机构控制内燃机的装置和方法
    • US07506620B2
    • 2009-03-24
    • US10580857
    • 2004-12-07
    • Yuji Yasui
    • Yuji Yasui
    • F02B75/04F01L1/34
    • F02D15/02F02D13/0226Y02T10/18Y02T10/42
    • A control device for controlling an engine, comprising a variable lift mechanism capable of changing the lift of a valve and a variable compression ratio mechanism capable of changing a compression ratio in a combustion chamber. The control devise controls the variable lift mechanisms and the variable compression ratio mechanism so that, when a requested engine output is increased, a compression ratio decreasing rate is increased over a lift increasing rate and, when the requested engine output is reduced, a lift decreasing rate is increased over a compression ratio increasing rate. When the engine comprises a variable phase mechanism capable of changing the phase of the valve, the control devise controls the variable compression ratio mechanism and the variable phase mechanism so that, when the requested engine output is increased, the compression ratio decreasing rate is increased over the change rate of the phase to a delay angle and, when the requested engine output is reduced, the change rate of the phase to an advance angle is increased over the compression ratio increasing rate. Thus, the contact of the valve with a piston can be avoided.
    • 一种用于控制发动机的控制装置,包括能够改变阀的升程的可变升程机构和能够改变燃烧室中的压缩比的可变压缩比机构。 控制装置控制可变提升机构和可变压缩比机构,使得当所要求的发动机输出增加时,压缩比减小率随着升程增加率而增加,并且当所要求的发动机输出减小时,升力降低 速率比压缩比增加率增加。 当发动机包括能够改变阀的相位的可变相位机构时,控制装置控制可变压缩比机构和可变相位机构,使得当所要求的发动机输出增加时,压缩比减小率增加超过 相位延迟角度的变化率,当所要求的发动机输出减小时,相位提前角的变化率比压缩比增加率增加。 因此,可以避免阀与活塞的接触。