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1. 发明授权

US4984552A Fuel injection device for an internal combustion engine 失效
标题翻译：内燃机燃油喷射装置
公开(公告)号：US4984552A
公开(公告)日：1991-01-15
申请号：US375800
申请日：1989-07-05
申请人： Hiroyuki Nishizawa , Kimito Kashiwabara , Osamu Nako , Mitsuaki Ishii , Kouichi Yamane , Masaaki Miyazaki , Ryoji Nishiyama
发明人： Hiroyuki Nishizawa , Kimito Kashiwabara , Osamu Nako , Mitsuaki Ishii , Kouichi Yamane , Masaaki Miyazaki , Ryoji Nishiyama
IPC分类号： F02D41/04 , F02D41/10 , F02D45/00
CPC分类号： F02D41/045 , F02D41/105
摘要： A fuel injection device for an automotive internal combustion engine is disclosed, which comprises two distinct acceleration state determining means, i.e., a rapid and a slow acceleration state judgement means, for determining the amount of the asynchronous augmentation of fuel. The rapid acceleration state judgement detects the rapid acceleration state by comparing with a first threshold level the increment of the throttle opening degree over each period of an A/D conversion timing signal; the slow acceleration judgement means, on the other hand, detects the slow acceleration state by comparing with a second threshold level the increment of, for example, the throttle opening degree signal over, for example, two successive periods of the same A/D conversion time signal. When the rapid acceleration state is detected, an asynchronous augmentation of fuel for the rapid acceleration is effected. On the other hand, an asynchronous augmentation of fuel for the slow acceleration is effected only if: (1) the rapid acceleration state is not detected, and (2) the slow acceleration state is detected, over the two successive periods of the timing signal.
摘要翻译：公开了一种用于汽车内燃机的燃料喷射装置，其包括用于确定燃料的异步增加量的两个不同的加速状态确定装置，即快速和慢速加速状态判断装置。快速加速状态判断通过与A / D转换定时信号的每个周期上的节气门开度的增加值与第一阈值水平进行比较来检测快速加速状态; 另一方面，慢加速度判定装置通过比较例如相同A / D转换的两个连续周期的节气门开度信号的增量与第二阈值电平进行比较来检测慢加速度状态时间信号。当检测到快速加速状态时，实现用于快速加速的燃料的异步增加。另一方面，只有在以下情况下才能实现用于慢加速度的燃料的异步增加：（1）未检测到快速加速状态，以及（2）在定时信号的两个连续周期中检测到慢加速状态。

2. 发明授权

US4962742A Fuel injection device for an internal combustion engine 失效
标题翻译：内燃机燃油喷射装置
公开(公告)号：US4962742A
公开(公告)日：1990-10-16
申请号：US376780
申请日：1989-07-07
申请人： Hiroyuki Nishizawa , Kimito Kashiwabara , Osamu Nako , Mitsuaki Ishii , Kouichi Yamane , Masaaki Miyazaki , Ryoji Nishiyama
发明人： Hiroyuki Nishizawa , Kimito Kashiwabara , Osamu Nako , Mitsuaki Ishii , Kouichi Yamane , Masaaki Miyazaki , Ryoji Nishiyama
IPC分类号： F02D41/04 , F02D23/02 , F02D41/00 , F02D41/10 , F02D41/24 , F02D41/32 , F02D41/34
CPC分类号： F02D41/28 , F02D41/0007 , F02D41/32 , Y02T10/144
摘要： A fuel injection device for an automotive spark ignition internal combustion engine provided with a supercharger is disclosed, wherein the amount of fuel injected in synchrony with the crank angle signal is determined on the basis of the intake air pressure. The increment of the air pressure data over each fuel injection period is compared with a first threshold level to determine the first augmentation. The pressure data is averaged over each fuel injection period, and the increment of the averaged pressure data over a predetermined interval of time is compared with a second threshold level to determine the second augmentation. The fundamental amount is calculated on the basis of either the instantaneous or the averaged pressure data, in dependency on the value of the first augmentation amount. The total amount of fuel that is to be injected in synchrony with every predetermined numberth pulse of the crank angle signal is calculated in each injection cycle as a sum of the fundemental amount and the first and the second augmentation when the engine is judged to be in the supercharged state; when, on the other hand, the engine is judged to not to be in the supercharged state, the total amount of fuel is calculated as the sum of the fundamental amount and the first augmentation alone. The supercharged state is detected when both the intake air pressure and the number of rpm of the engine are above respective predetermined levels.
摘要翻译：公开了一种具有增压器的汽车用火花点火式内燃机的燃料喷射装置，其特征在于，与所述曲轴转角信号同步喷射的燃料量基于进气压力来确定。将每个燃料喷射期间的空气压力数据的增量与第一阈值水平进行比较，以确定第一次增加。压力数据在每个燃料喷射期间平均，并且将预定时间间隔上的平均压力数据的增量与第二阈值水平进行比较，以确定第二次增加。根据第一次增加量的值，基于瞬时压力数据或平均压力数据计算基本量。在每个喷射循环中计算出与曲柄角度信号的每个预定第
十个脉冲同步喷射的燃料的总量，作为当发动机被判定为在其中时的基础量与第一和第二增
加的总和增压状态; 另一方面，当发动机被判断为不处于增压状态时，燃料的总量被单独计算为基本量和第一增加量之和。当进气压力和发动机的转数都高于相应的预定水平时，检测到增压状态。

3. 发明授权

US4951634A Fuel injection device for an internal combustion engine 失效
标题翻译：内燃机燃油喷射装置
公开(公告)号：US4951634A
公开(公告)日：1990-08-28
申请号：US368631
申请日：1989-06-20
申请人： Hiroyuki Nishizawa , Kimito Kashiwabara , Osamu Nako , Mitsuaki Ishii , Kouichi Yamane , Masaaki Miyazaki , Ryoji Nishiyama
发明人： Hiroyuki Nishizawa , Kimito Kashiwabara , Osamu Nako , Mitsuaki Ishii , Kouichi Yamane , Masaaki Miyazaki , Ryoji Nishiyama
IPC分类号： F02D41/04 , F02D41/00 , F02D41/10 , F02D41/34
CPC分类号： F02D41/10
摘要： A fuel injector for a spark ignition internal combustion engine is disclosed, wherein the amount of injected fuel is increased by an extra amount when the engine is in a transient accelerating state. The air pressure within the air inlet passage to the engine is detected by an air pressure sensor, and the load condition is judged by comparing the detected pressure with a reference level. Further, the variation or increment of the detected pressure over each fuel injection period is calculated and compared with a high or a low threshold level selected in accordance with the load condition of the engine. Preferably, the high threshold level is selected when the high load condition continues over a predetermined length of time, the low threshold level being otherwise selected. The amount of transient extra increase is determined in accordance with the result of the comparison of the pressure variation with the selectd threshold level. On the other hand, the fundamental amount of injected fuel is calculated on the basis of an instantaneous current air pressure when the above amount of transient extra increase is not zero; otherwise, on the basis of an average of the pressure over the fuel injection period. The sum of the fundamental amount and the transient increase is injected in synchrony with every predetermined number pulse of the crank angle signal.
摘要翻译：公开了一种用于火花点火内燃机的燃料喷射器，其中当发动机处于瞬态加速状态时，喷射燃料的量增加额外的量。通过空气压力传感器检测到发动机的进气通道内的空气压力，并通过将检测到的压力与参考水平进行比较来判断负载状况。此外，计算每个燃料喷射期间的检测压力的变化或增量，并将其与根据发动机的负载条件选择的高或低阈值水平进行比较。优选地，当高负载条件在预定时间长度上继续时，选择高阈值电平，否则选择低阈值电平。根据压力变化与选择阈值水平的比较的结果确定瞬时额外增加的量。另一方面，当上述瞬时额外增加量不为零时，基于瞬时当前空气压力计算喷射燃料的基本量; 否则，基于燃料喷射期间的压力平均值。基本量和瞬时增加的总和与曲柄角信号的每个预定数量的脉冲同步地注入。

4. 发明授权

US4987889A Method for controlling fuel at an acceleration time of an electronically-controlled fuel engine 失效
标题翻译：在电子控制燃料发动机的加速时间控制燃料的方法
公开(公告)号：US4987889A
公开(公告)日：1991-01-29
申请号：US468629
申请日：1990-01-23
申请人： Hirokatsu Fujita , Kimito Kashiwabara , Yoshiaki Kanno
发明人： Hirokatsu Fujita , Kimito Kashiwabara , Yoshiaki Kanno
IPC分类号： F02D41/04 , F02D41/10
CPC分类号： F02D41/105 , F02D41/045
摘要： In a fuel supply control method including determining a cylinder at a suction stroke in a multiple cylinder internal combustion engine at each generation of a first predetermined crank angle position signal and injecting/supplying into a cylinder at a suction stroke a first amount at fuel which is computed by a first technique based on a sucked amount of air, A, and number of engine rotations, N, representing an engine load, a method comprises determining a cylinder at a suction stroke for asynchronous injection at each generation of a second crank angle position signal which is nearer to a top dead center of each cylinder than the first predetermined crank angle position signal; detecting a throttle valve opening for each predetermined time Ts and computing a throttle value opening variation .DELTA. .circleincircle.H ; and injecting/supplying, upon determining the variation .DELTA. .circleincircle.H as being greater than a predetermined value, a second amount of fuel corresponding to the variation .DELTA. .circleincircle.H into the cylinder which has been determined by the second crank angle position signal as being at the suction stroke and into a cylinder at a corresponding exhaust stroke. By so doing, there is an increased chance of being able to correct an incremental fuel which is asynchronously injected into a cylinder at the suction stroke and cylinder at the exhaust stroke, thus ensuring an enhanced response of the vehicle to an engine output at a time of acceleration.
摘要翻译：一种燃料供给控制方法，其特征在于，在各缸内燃机的每一次产生第一规定的曲柄角位置信号时，确定吸气行程的气缸，并以吸入冲程向汽缸内注入/供给第一量的燃料，通过基于吸入的空气量A和代表发动机负载的发动机转数N的第一技术计算的方法包括在每次产生第二曲柄角位置时确定用于异步喷射的吸入冲程的气缸信号比第一预定曲柄角位置信号更接近每个气缸的上死点; 在每个预定时间Ts检测节气门开度，并计算节气门开度变化量DELTA＆amp;循环＆H; 以及在将所述变化量DELTA＆circir＆H确定为大于预定值时，将与所述变化量DELTA＆amp;循环H的对应的第二量的燃料喷射/供给到由所述第二曲柄角位置信号确定为所述第二曲柄角位置信号的所述气缸中吸入冲程并进入相应排气冲程的气缸。通过这样做，能够校正在排气行程处在吸入冲程和气缸异步注入气缸的增量燃料的机会增加，从而确保一次车辆对发动机输出的增强的响应的加速度。

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