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公开(公告)号：US06668792B2
公开(公告)日：2003-12-30
申请号：US10097669
申请日：2002-03-15
IPC分类号： F02B1700
CPC分类号： F02D41/0057 , F02B23/104 , F02B31/085 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02D41/0002 , F02D41/3023 , F02D41/3809 , F02D41/401 , F02D41/402 , F02D2041/0015 , F02D2041/389 , F02D2200/0411 , F02D2200/0414 , F02D2200/703 , F02D2250/31 , F02F3/26 , F02F2001/245 , F02M63/0225 , F02M69/045 , Y02T10/123 , Y02T10/125 , Y02T10/146 , Y02T10/42 , Y02T10/44 , Y02T10/47
摘要： In a control system for an in-cylinder direct injection engine, an actual port intake air density ganmap is calculated based on the intake air temperature thae and the atmospheric pressure atp, a reference port intake air density ganmap* corresponding to the current operating conditions of the engine is read out of a map and compared with the actual port intake air density ganmap, and a target fuel pressure or fuel injection timing is compensatorily modified based on the comparison result. This prevents fuel spray and the tumble from being thrown out of balance due to a change in intake air temperature or atmospheric pressure thereby providing suitable mixture stratification.
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公开(公告)号：US06668791B2
公开(公告)日：2003-12-30
申请号：US10095090
申请日：2002-03-12
IPC分类号： F02B1700
CPC分类号： F02D41/3029 , F02B17/005 , F02B23/10 , F02B23/104 , F02B31/085 , F02B75/12 , F02B2023/106 , F02B2031/006 , F02B2075/125 , F02B2275/48 , F02D41/1498 , F02D41/2438 , F02D41/2454 , F02D2250/31 , F02F3/26 , F02F2001/245 , Y02T10/123 , Y02T10/125
摘要： In a control system for an in-cylinder direct injection engine, during idling operation, the fuel injection timing is compensated to the advance side for each cylinder so that the rate of change in crank angular velocity becomes smaller than a preset criterion while the fuel injection pressure of an injector is gradually reduced from a reference target fuel pressure to a preset lower limit. If the rate of change in crank angular speed becomes smaller than the criterion as a result of the above compensation, the fuel injection timing is compensated to the retard side so that the rate of change in crank angular velocity becomes smaller while the fuel pressure is gradually increased to the preset upper limit. Consequently, the unbalance of fuel spray and tumble due to deviations of fuel spray penetration and the like can be eliminated thereby providing suitable mixture stratification.
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公开(公告)号：US06325041B1
公开(公告)日：2001-12-04
申请号：US09497192
申请日：2000-02-03
IPC分类号： F02B300
CPC分类号： F02D41/005 , F01N3/0842 , F02B2075/125 , F02D41/0275 , F02D41/1408 , F02D41/3023 , F02D41/402 , F02D2250/36 , Y02T10/123 , Y02T10/44 , Y02T10/47
摘要： Upon refreshing a catalyst (25) in steps SA2 to SA6, the air-fuel ratio of each combustion chamber (4) of an engine (1) is dither-controlled to periodically vary to the rich and lean sides of a target value (A/F=15 to 16) in steps SA16 and SA17. In step SA15, an injector (7) divisionally injects fuel in two injections within the period from the intake stroke to the compression stroke of each cylinder, thus accomplishing weakly stratified combustion. In step SA18, the opening of an EGR valve (27) is controlled to recirculate a large amount of exhaust gas to an intake path (10) so as to achieve around 40% EGR ratio.
摘要翻译： 在步骤SA2至SA6中更新催化剂（25）时，发动机（1）的每个燃烧室（4）的空燃比被抖动控制，以周期性地变化到目标值（A / F = 15〜16）。 在步骤SA15中，喷射器（7）在从进气冲程到每个气缸的压缩冲程的时段内分两次喷射燃料，从而完成弱分层燃烧。 在步骤SA18中，控制EGR阀（27）的开度使大量废气再循环到进气路径（10），以实现大约40％的EGR率。
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4.发明授权Air intake control system for engine equipped with exhaust gas recirculation feature 失效发动机进气控制系统配备排气再循环功能
公开(公告)号：US6079387A
公开(公告)日：2000-06-27
申请号：US120242
申请日：1998-07-22
IPC分类号： F02M25/07 , F02B3/06 , F02D9/02 , F02D21/08 , F02D33/00 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/30 , F02D43/00 , F02B17/00 , F02D11/10
CPC分类号： F02D41/0057 , F02D33/00 , F02D41/0052 , F02D41/3029 , F02B3/06 , F02D2041/0017 , F02D2041/389 , F02D2200/0402 , F02D2200/0414 , F02D2200/703 , Y02T10/42 , Y02T10/47
摘要： An air intake control system for an engine equipped with an exhaust gas recirculation feature controls an exhaust gas recirculation valve according to an amount of air charge dictated by an amount of intake air detected by an air flow sensor to deliver a target amount of air charge and control an amount of air charge meeting an estimated amount of air charge estimated under the condition that the control of exhaust gas recirculation valve according to an amount of air charge is interrupted.
摘要翻译： 用于配备有排气再循环特征的发动机的进气控制系统根据由空气流量传感器检测到的进气量指定的空气量来控制排气再循环阀，以输送目标量的空气进料量， 控制在根据空气量的排气中断排气再循环阀的控制的情况下，估计出的估计空气量的估计量的空气量的量。
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5.发明授权Control device for direct-injection spark-ignition engine and method of setting fuel injection timing of the same 失效直喷式点火发动机的控制装置及其燃油喷射定时的设定方法公开(公告)号：US06681739B2
公开(公告)日：2004-01-27
申请号：US10145999
申请日：2002-05-15
IPC分类号： F02B1700
CPC分类号： F02D41/3029 , F02B17/005 , F02B31/00 , F02B2075/125 , F02D37/02 , F02D41/34 , F02D41/401 , F02D2041/389 , F02D2200/1015 , F02F3/26 , Y02T10/123 , Y02T10/44
摘要： A direct-injection spark-ignition engine in which a combustible mixture is produced around a spark plug at an ignition point by causing a tumble and a fuel spray to collide with each other in a combustion chamber during stratified charge combustion comprises a fuel pressure controller which controls fuel pressure such that penetration of the fuel spray from a fuel injector is progressively intensified with an increase in engine speed in a stratified charge combustion region and means for controlling fuel injection timing including an injection timing setter. The means for controlling fuel injection timing controls the injection timing in such a way that the interval between a fuel injection ending point and the ignition point becomes progressively shorter as engine speed increases under the same engine load conditions in the stratified charge combustion region.
摘要翻译： 一种直喷式火花点火式发动机，其中通过在分层充气燃烧期间使燃烧室中的翻转和燃料喷雾相互碰撞，在点火点周围的火花塞周围产生可燃混合物，包括燃料压力控制器 控制燃料压力，使得来自燃料喷射器的燃料喷雾的渗透随着分层充气燃烧区域中的发动机速度的增加而逐渐增强，以及用于控制包括喷射正时设定器的燃料喷射正时的装置。 用于控制燃料喷射正时的装置以这样一种方式来控制喷射正时，使得随着发动机转速在分层充气燃烧区域的相同发动机负荷条件下增加，燃料喷射终点和点燃点之间的间隔逐渐变短。
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6.发明授权公开(公告)号：US06244241B1
公开(公告)日：2001-06-12
申请号：US09281318
申请日：1999-03-30
IPC分类号： F02D4116
CPC分类号： F02D41/247 , F02D41/1456 , F02D41/2438 , F02D41/2441 , F02D41/2461 , F02D41/3029 , F02D41/402 , F02D2041/389 , Y02T10/42
摘要： A fuel injection control system for a direct injection-spark ignition engine determines an injection pulse width corresponding to a given quantity of fuel with which an injector is kept open, controls the injector to spray a given quantity of fuel in a compression stroke while the engine operates in a zone of lower engine loads specified for lean stratified charge combustion so that the fuel is stratified around an ignition plug to cause lean stratified charge combustion so as thereby to provide an air-fuel ratio greater than a stoichiometric air-fuel ratio, executes fuel injection feedback control to control a quantity of fuel injection based on an air-fuel ratio detected by an oxygen sensor, causes the injector to spray a given quantity of fuel through a plurality of intake stroke split injection in a specified engine operating zone in which the fuel injection feedback control is performed to maintain at least a stoichiometric air-fuel ratio while the engine operates with lower loads, learns a fuel injection quantity characteristic of the injector with respect to injection pulse width for each intake stroke split injection based on a value controlled by the fuel injection feedback control during execution of the intake stroke split injection to determine a leaning correction value, and makes the learning correction value reflect on the control of the quantity of fuel in a minute injection zone specified within the specified engine operating zone for the lean stratified charge combustion.
摘要翻译： 用于直接喷射火花点火发动机的燃料喷射控制系统确定对应于喷射器保持打开的给定量的燃料的喷射脉冲宽度，控制喷射器在压缩行程中喷射给定量的燃料，同时发动机 在精馏层燃料燃烧所规定的较低发动机负荷的区域内运行，使得燃料围绕火花塞分层以引起精馏分层燃料燃烧，从而提供大于化学计量空燃比的空燃比，执行 基于由氧传感器检测到的空燃比来控制燃料喷射量的燃料喷射反馈控制使得喷射器在指定的发动机操作区域内通过多个进气冲程分流喷射喷射给定量的燃料，其中 执行燃料喷射反馈控制以在发动机以较低负载运行时保持至少理论空燃比 基于在执行进气冲程分离喷射期间由燃料喷射反馈控制控制的值来获知喷射器相对于喷射脉冲宽度的燃料喷射量特性，以确定倾斜校正值，并且 学习校正值反映在用于贫分层充气燃烧的指定的发动机操作区内指定的微小喷射区域中的燃料量的控制。
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公开(公告)号：US6032637A
公开(公告)日：2000-03-07
申请号：US22626
申请日：1998-02-12
IPC分类号： F02P5/15 , F02D35/00 , F02D41/02 , F02D41/24 , F02D41/30 , F02D41/34 , F02D41/40 , F02D45/00 , F02D43/04
CPC分类号： F02D41/2409 , F02D35/00 , F02D41/2416 , F02D41/3064 , F02D41/3029 , F02D41/402
摘要： An engine control system for controlling operation of an engine of a type injecting fuel directly into a combustion chamber in different injection modes according to engine operating conditions has a map of engine control values with respect to specified engine operating conditions at intersection points of a grid pattern in which engine control values at extreme intersection points adjacent to a boundary between adjacent injection modes is discontinual. The engine control system calculates an engine control value for an engine operating condition by interpolation with the aid of engine control values at the intersection points and determines an engine control value for an engine operating condition at a point closer to the boundary than the extreme intersection point of one injection mode based on engine control values at intersection points of the one injection mode only.
摘要翻译： 根据发动机工作条件，用于以不同喷射模式直接进入燃烧室的发动机的发动机控制的发动机控制系统具有相对于格栅图案的交叉点处的指定的发动机工作条件的发动机控制值的映射 其中与相邻喷射模式之间的边界相邻的极端交点处的发动机控制值是不连续的。 发动机控制系统通过借助于交叉点处的发动机控制值的内插来计算发动机运转状态的发动机控制值，并且确定在比极限交叉点更靠近边界的点处的发动机工作状态的发动机控制值 基于仅在一个喷射模式的交点处的发动机控制值的一个喷射模式。
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公开(公告)号：US5983857A
公开(公告)日：1999-11-16
申请号：US21314
申请日：1998-02-10
CPC分类号： F02D41/3029 , F02D41/0002 , F02D41/123 , F02D41/3076 , F02D2041/0015 , F02D2041/389 , F02D41/126 , Y02T10/128 , Y02T10/42
摘要： An engine control system for an automobile engine of, for example, the type which injects fuel directly into an combustion chamber (16) and executes a fuel-cut control under a specified engine operating condition establishes a stratified charge combustion mode and a homogeneous charge combustion mode selectively according to engine operating conditions following termination of the fuel-cut control and shuts off nearly completely an engine throttle valve (28) during execution of the fuel-cut control and opens the engine throttle valve (28) so as to variably control an amount of intake air passing through an intake passage (24) into the combustion chamber (16) before the stratified charge combustion mode is established following termination of the fuel-cut control.
摘要翻译： 用于汽车发动机的发动机控制系统例如是将燃料直接喷入燃烧室（16）并在特定的发动机运行条件下执行燃料切断控制的类型，建立了分层充气燃烧模式和均质充气燃烧 在燃料切断控制结束后根据发动机工作条件选择性地进行模式切换，并且在执行燃料切断控制期间几乎全部关闭发动机节流阀（28）并打开发动机节流阀（28），以便可变地控制 在燃料切断控制结束之后建立分层充气燃烧模式之前通过进气通道（24）进入燃烧室（16）的进气量。
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9.发明授权Control device for direct injection engine and an injection engine provided with a controller 失效用于直喷发动机的控制装置和配备有控制器的喷射发动机公开(公告)号：US06244243B1
公开(公告)日：2001-06-12
申请号：US09481112
申请日：2000-01-11
IPC分类号： F02B1700
CPC分类号： F02D41/307 , F02D37/02 , F02D41/0002 , F02D41/1401 , F02D41/3029 , Y02T10/42
摘要： A control device for controlling a direct injection engine provided with an injector for injecting fuel directly into a combustion chamber in a cylinder thereof and a throttle valve is switchable between a stratified charge combustion mode and a uniform charge combustion mode. The control device predicts switching to the uniform charge combustion mode based on a change in the target load Piobj during engine acceleration in the stratified charge combustion mode, and corrects the target load Piobj so that the opening of the throttle valve approaches the opening suited for the uniform charge combustion mode prior to the switching to the uniform charge combustion mode when such combustion mode switching has been predicted. This control device prevents torque shock due to the combustion mode switching during engine acceleration without causing a deterioration in fuel economy or in vehicle acceleration performance.
摘要翻译： 一种用于控制直喷式发动机的控制装置，其具有用于将燃料直接喷射到其气缸中的燃烧室中的喷射器和节流阀，可在分层充气燃烧模式和均匀充气燃烧模式之间切换。 控制装置基于在分层充气燃烧模式中的发动机加速期间的目标负载Piobj的变化来预测切换到均匀充气燃烧模式，并且校正目标负载Piobj，使得节流阀的打开接近适于 在预测这种燃烧模式切换时，在切换到均匀充气燃烧模式之前的均匀充气燃烧模式。 该控制装置防止由于在发动机加速期间的燃烧模式切换引起的扭矩冲击，而不会导致燃料经济性或车辆加速性能的劣化。
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公开(公告)号：US06234139B1
公开(公告)日：2001-05-22
申请号：US09252788
申请日：1999-02-19
申请人： Junichi Taga , Michihiro Imada , Masayuki Kuroki , Masayuki Tetsuno , Kiyotaka Mamiya , Hirofumi Nishimura
发明人： Junichi Taga , Michihiro Imada , Masayuki Kuroki , Masayuki Tetsuno , Kiyotaka Mamiya , Hirofumi Nishimura
IPC分类号： F02B1700
CPC分类号： F02D41/3064 , F02D41/0002 , F02D41/3029 , F02D2041/0015 , Y02T10/42
摘要： An engine control system for an engine equipped with a swirl control valve which is operative in operation modes different in fuel injection form according to engine operating conditions judges based on a change in an engine operating condition whether a mode shift to one operation mode to another is demanded and controls the swirl control valve so as to attain a target opening for the one engine operation mode while keeping a specific mode shift waiting until the swirl valve opening reaches a limit value permissible in one engine operation mode into which the specific mode shift is made when the swirl control valve is judged to be out of the limit value.
摘要翻译： 一种具有涡轮控制阀的发动机控制系统，该发动机控制系统根据发动机工作条件在燃料喷射形式不同的操作模式下工作，基于发动机运行状态的变化来判断模式向一个操作模式的转换是否为 要求并控制旋流控制阀，以便在保持特定模式换档的同时等待直到涡旋阀开度达到一个发动机运转模式允许的限制值为止，达到一个发动机运转模式的目标开度 当涡流控制阀被判定为超出极限值时。
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