Throttle controlling apparatus for diesel engine with supercharger
    43.
    发明授权
    Throttle controlling apparatus for diesel engine with supercharger 有权
    带增压器的柴油机油门控制装置

    公开(公告)号:US07865292B2

    公开(公告)日:2011-01-04

    申请号:US12265074

    申请日:2008-11-05

    申请人: Masaaki Sato

    发明人: Masaaki Sato

    IPC分类号: G06F19/00 F02D23/02 F02B33/44

    摘要: An apparatus for controlling a throttle opening degree of a diesel engine with a supercharger is disclosed. The apparatus includes an electronic control unit having functions of detecting section, a computing section, a correcting section, and a correction limiting/inhibiting section. The detecting section detects the atmospheric pressure, and the computing section computes an atmospheric pressure correction value with respect to the throttle opening degree based on the detected atmospheric pressure. The correcting section corrects the throttle opening degree in accordance with the atmospheric pressure correction value. When the degree of separation of an actual charging pressure from a target charging pressure in the supercharger is les than a predetermined value, the correction limiting/inhibiting section limits or inhibits correction of the throttle opening degree in accordance with the atmospheric pressure correction value.

    摘要翻译: 公开了一种用于控制具有增压器的柴油发动机的节气门开度的装置。 该装置包括具有检测部分,计算部分,校正部分和校正限制/禁止部​​分功能的电子控制单元。 检测部检测大气压,运算部基于检测出的大气压,计算相对于节气门开度的大气压力校正值。 校正部根据大气压力校正值来校正节气门开度。 当实际充气压力与增压器中的目标充气压力的分离程度低于预定值时,校正限制/禁止部​​分根据大气压力校正值限制或禁止节气门开度的校正。

    EXHAUST GAS RE-CIRCULATION CONTROL UNIT FOR A DIESEL ENGINE
    45.
    发明申请
    EXHAUST GAS RE-CIRCULATION CONTROL UNIT FOR A DIESEL ENGINE 有权
    柴油发动机排气再循环控制单元

    公开(公告)号:US20100282222A1

    公开(公告)日:2010-11-11

    申请号:US12679411

    申请日:2009-04-21

    IPC分类号: F02D21/08 F02D41/04 F02M25/07

    摘要: An EGR control unit for enhancing the performance as to the EGR rate and the engine acceleration, the unit being configured so as to control the EGR valve and the intake air valve with a simple control command signal that makes both the valves be operated in a coupled mode, whereby the response performance as to the engine speed during acceleration as well as the EGR gas flow rate is enhanced by means of compensation regarding the dead zones inherent in the intake air throttle valve and the EGR valve. An EGR control unit including; a dead zone evaluating means 64 that calculates the estimation excess air ratio λ in consideration of the residual air in the EGR gas; thereby, it is judged that at least one of the EGR valve 27 and the intake air throttle valve 29 is operated in the dead zone based on the rate of change of the calculated estimation excess air ratio λ when the rate of change of the ratio λ is smaller than a prescribed level; and a dead zone compensating means 66 that makes the revisions regarding the opening command signals as to the EGR valve and the intake air throttle valve so that the dead zones do not hinder the coupled operation between the valves when the dead zone evaluating means judges that at least one of the EGR valve and the air throttle valve is operated in the dead zone, and the engine is under a transient response condition.

    摘要翻译: 一种用于提高EGR率和发动机加速性能的EGR控制单元,该单元构造成以简单的控制命令信号来控制EGR阀和进气阀,使得两个阀都以耦合的方式工作 模式,由此通过对进气节气门和EGR阀固有的死区的补偿来提高加速时的发动机转速以及EGR气体流量的响应性能。 一种EGR控制单元,包括: 考虑到EGR气体中的残留空气来计算估计过剩空气比λ的死区评价装置64; 因此,当比率λ的变化率基于计算出的估计过量空气比λ的变化率时,判断EGR阀27和进气节流阀29中的至少一个在死区中动作 小于规定水平; 以及死区补偿装置66,其使得关于EGR阀和进气节流阀的打开指令信号的修正使得当死区评估装置判断为在死区时死区不阻碍阀之间的联接操作 EGR阀和空气节流阀中的至少一个在死区中操作,并且发动机处于瞬态响应状态。

    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE, AND CONTROL METHOD THEREOF
    46.
    发明申请
    CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE, AND CONTROL METHOD THEREOF 审中-公开
    用于内燃机的控制装置及其控制方法

    公开(公告)号:US20100186727A1

    公开(公告)日:2010-07-29

    申请号:US12663863

    申请日:2008-06-13

    申请人: Tomohiro Kaneko

    发明人: Tomohiro Kaneko

    IPC分类号: F02B47/08

    摘要: A control device for an internal combustion engine (100) controls the internal combustion engine (100) that includes a first EGR device (51) that recirculates exhaust gas from a downstream side of a turbine (23b) to an upstream side of a compressor (23a), and a second EGR device (50) that recirculates exhaust gas from the upstream side of the turbine (23b) to the downstream side of the compressor (23a). EGR control device (7) performs such a control as to change the recirculation of exhaust gas from the recirculation of exhaust gas using the second EGR device (50) to the recirculation of exhaust gas using the first EGR device (51) when the idling-stop is to be executed.

    摘要翻译: 用于内燃机(100)的控制装置控制内燃机(100),该内燃机包括将排气从涡轮机(23b)的下游侧再循环到压缩机的上游侧的第一EGR装置(51) 23a)和将涡轮(23b)的上游侧的废气再循环到压缩机(23a)的下游侧的第二EGR装置(50)。 EGR控制装置(7)进行这样的控制,即,当空转时,EGR控制装置(7)进行这样的控制,即,使用第二EGR装置(50)将排气的再循环改变为使用第一EGR装置(51) 停止将被执行。

    Control device for internal combustion engine
    47.
    发明授权
    Control device for internal combustion engine 有权
    内燃机控制装置

    公开(公告)号:US07441544B2

    公开(公告)日:2008-10-28

    申请号:US11806114

    申请日:2007-05-30

    申请人: Hideki Hagari

    发明人: Hideki Hagari

    IPC分类号: F02M1/00 F02M7/00

    摘要: Provided is a control device for an internal combustion engine, which is provided to allow a throttle opening degree to be controlled in accordance with a target engine intake air flow quantity even during transitional operation. The actual cylinder intake air flow quantity calculating unit (21) calculates a response delay model for an intake system from a volumetric efficiency equivalent value (Kv) calculated from a rotational speed (Ne) of an engine (1) and an intake manifold pressure (Pim), an intake pipe volume (Vs), and a displacement (Vc) of each of cylinders (2), and calculates an actual cylinder intake air amount (Qcr) from an actual engine intake air amount (Qar) obtained from an air flow sensor (4) and the response delay model. The intake air flow quantity controlling unit (24) controls the throttle opening degree (TP) in accordance with the target engine intake air amount (Qat).

    摘要翻译: 提供一种用于内燃机的控制装置,其被设置成允许即使在过渡操作期间也可以根据目标发动机进气流量来控制节气门开度。 实际的气缸进气量流量计算单元(21)根据从发动机(1)的转速(Ne)和进气歧管压力(N)计算的体积效率等效值(Kv),计算进气系统的响应延迟模型 Pim),进气管容积(Vs)和各缸(2)的排量(Vc),并根据从空气中获得的实际发动机吸入空气量(Qar)来计算实际气缸进气量(Qcr) 流量传感器(4)和响应延迟模型。 进气量控制单元24根据目标发动机进气量(Qat)控制节气门开度(TP)。

    Diesel engine system with exhaust gas recirculation
    48.
    发明申请
    Diesel engine system with exhaust gas recirculation 有权
    具有废气再循环的柴油发动机系统

    公开(公告)号:US20080202118A1

    公开(公告)日:2008-08-28

    申请号:US12071119

    申请日:2008-02-15

    IPC分类号: F02D45/00

    摘要: A diesel engine system includes a diesel engine, a throttle valve, an EGR (Exhaust Gas Recirculation) path, an EGR valve and a controller. The throttle valve controls a flow rate of intake air to the diesel engine. Exhaust gas is recirculated along the EGR path from an exhaust port to an intake port of the diesel engine. The EGR valve controls a flow rate of the exhaust gas. The controller controls the throttle valve and the EGR valve such that an opening of the throttle valve decreases and an opening of the EGR valve increases when a load of the diesel engine increases. The controller controls the EGR valve such that the opening of the EGR valve increases after the opening of the EGR valve is held constant for a first predetermined holding time.

    摘要翻译: 柴油发动机系统包括柴油发动机,节气门,EGR(排气再循环)路径,EGR阀和控制器。 节流阀控制到柴油发动机的进气流量。 排气沿着EGR通路从排气口再循环到柴油发动机的进气口。 EGR阀控制废气的流量。 控制器控制节流阀和EGR阀,使得当柴油发动机的负载增加时节气门的开度减小,EGR阀的开度增加。 控制器控制EGR阀,使得EGR阀的打开在第一预定保持时间保持恒定之后增加。

    Method and device for determining the mass flow rate passing through the air-bleed valve of an internal combustion engine tank
    49.
    发明授权
    Method and device for determining the mass flow rate passing through the air-bleed valve of an internal combustion engine tank 失效
    用于确定通过内燃机箱的排气阀的质量流量的方法和装置

    公开(公告)号:US07347193B2

    公开(公告)日:2008-03-25

    申请号:US10564460

    申请日:2004-07-08

    IPC分类号: F02M37/04

    摘要: A device for determining the mass flow via a tank venting valve for an internal combustion engine including an intake manifold and a throttle valve, the intake manifold being connected to the tank venting valve and an exhaust gas recirculation system, one measuring transducer each being assigned to the throttle valve and the tank venting valve, and a sensor for the mass flow via the exhaust gas recirculation system being assigned to the exhaust gas recirculation system. In order to be able to determine the mass flow via the tank venting valve with improved accuracy it is provided in such a device that a mass flow normalizer is assigned to the measuring transducers and to the sensor for the mass flow via the exhaust gas recirculation system; the mass flow normalizer picks up, sums, and normalizes the signals of the measuring transducers and the sensor assigned to the mass flows via the throttle valve, via the tank venting valve, and via the exhaust gas recirculation system; a convertor is assigned to the mass flow normalizer; the convertor calculates a virtual throttle valve angle from which an allocator determines the mass flow via the tank venting valve.

    摘要翻译: 一种用于通过用于包括进气歧管和节流阀的内燃机的罐排气阀来确定质量流量的装置,所述进气歧管连接到所述罐排放阀和废气再循环系统,每个分配给一个测量传感器 节流阀和罐排放阀,以及用于经由废气再循环系统的质量流量的传感器被分配给废气再循环系统。 为了能够以更精确的方式确定通过罐排放阀的质量流量,在这样的装置中提供了质量流量规定器被分配给测量传感器和传感器,用于通过废气再循环系统进行质量流量 ; 质量流量规定器通过节流阀,经由罐排放阀和经由排气再循环系统拾取,求和并归一化分配给质量流的测量传感器和传感器的信号; 将转换器分配给质量流量规; 转换器计算虚拟节气门角度,分配器从该角度确定经由罐排放阀的质量流量。

    Regulation method and a device for exhaust gas purification
    50.
    发明授权
    Regulation method and a device for exhaust gas purification 失效
    调节方法和排气净化装置

    公开(公告)号:US07334397B2

    公开(公告)日:2008-02-26

    申请号:US10516790

    申请日:2003-05-26

    申请人: Micael Blomquist

    发明人: Micael Blomquist

    IPC分类号: F02M25/06

    摘要: The invention relates to a device for purifying exhaust gases from a combustion engine (1), comprising an arrangement (30) for recirculating exhaust gases from the engine to an air intake (2) thereof, a valve device (12) controlled by a control device (13) for regulating the relation between fresh air and recirculated exhaust gases supplied to the engine, and a regenerable filter (8) adapted to catch particulate constituents of the exhaust gases. The device further comprises means (14) for recording the temperature of the exhaust gases from the engine. The control device (13) is adapted to be supplied with temperature information from said temperature recording means (14), the control device (13) being adapted, with the aid of this temperature information and the valve device (12), to regulate the relation between fresh air and recirculated exhaust gases supplied to the engine so as to achieve a composition of the exhaust gases from the engine that is favourable with respect to the regeneration of the filter (8).

    摘要翻译: 本发明涉及一种用于净化来自内燃机(1)的废气的装置,包括用于将排气从发动机再循环到其进气口(2)的装置(30),由控制器控制的阀装置(12) 用于调节新鲜空气和供应到发动机的再循环废气之间的关系的装置(13),以及适于捕获废气的颗粒组分的可再生过滤器(8)。 该装置还包括用于记录来自发动机的废气温度的装置(14)。 控制装置(13)适于从所述温度记录装置(14)提供温度信息,所述控制装置(13)借助于该温度信息和阀装置(12)适于调节 提供给发动机的新鲜空气和再循环废气之间的关系,以实现相对于过滤器(8)的再生有利的来自发动机的废气的组成。