公开(公告)号：US4840156A

公开(公告)日：1989-06-20

申请号：US139068

申请日：1987-12-24

申请人： Akihiro Yamato ,  Makoto Hashiguchi

发明人： Akihiro Yamato ,  Makoto Hashiguchi

IPC分类号： F02D31/00 ,  F02D41/00 ,  F02D41/12 ,  F02D41/16

CPC分类号： F02D31/004 ,  F02D31/005 ,  F02D41/0005 ,  F02D41/126 ,  Y02T10/42

摘要： A method of controlling the quantity of intake air being supplied to an internal combustion engine equipped with means for increasing the intake air quantity by a required amount in response to operating conditions of the engine. The intake air quantity increasing means is actuated for a limited period of time to increase the quantity of intake air when it is determined that a predetermined condition is satisfied for terminating interruption of the fuel supply to the engine, which is carried out at deceleration of the engine. Preferably, the intake air quantity increasing means is actuated when the rate of decrease in the rotational speed of the engine is larger than a predetermined value, while the predetermined condition is determined to be satisfied.

摘要翻译： 一种控制供给内燃机的进气量的方法，所述内燃机配备有用于响应于发动机的运行条件而将进气量增加所需量的装置。 进气量增加装置在有限的时间段内被致动，以便当确定为了终止在发动机的减速时停止对发动机的燃料供给而满足预定条件时增加进气量 发动机。 优选地，当确定发动机的转速的下降速率大于预定值时，进气量增加装置被启动，同时确定满足预定条件。

公开(公告)号：US4727846A

公开(公告)日：1988-03-01

申请号：US786218

申请日：1985-10-10

申请人： Akihiro Yamato ,  Takafumi Nishikawa

发明人： Akihiro Yamato ,  Takafumi Nishikawa

IPC分类号： F02D41/00 ,  F02D41/04 ,  F02D41/12 ,  F02D41/10

CPC分类号： F02D41/123 ,  F02D41/04

摘要： The fuel supply to an internal combustion engine is decreased when the engine is in an operating region wherein the intake passage pressure is lower than a first predetermined value. The first predetermined value is corrected in response to detected atmospheric pressure encompassing the engine. Further, the fuel supply to the engine is interrupted when the engine is in a second operating region wherein the intake passage pressure is lower than a second predetermined value, which is lower than the first predetermined value. The second predetermined value is corrected in response to the detected atmospheric pressure, together with the first predetermined value.

摘要翻译： 当发动机处于进气通道压力低于第一预定值的操作区域时，内燃机的燃料供应减少。 响应于包围发动机的检测到的大气压力来校正第一预定值。 此外，当发动机处于进气通道压力低于低于第一预定值的第二预定值的第二操作区域时，发动机的燃料供应中断。 响应于检测到的大气压力与第一预定值一起校正第二预定值。

公开(公告)号：US4671241A

公开(公告)日：1987-06-09

申请号：US736868

申请日：1985-05-22

申请人： Akihiro Yamato

发明人： Akihiro Yamato

IPC分类号： F02D41/14 ,  F02D41/00 ,  F02D41/06 ,  F02D41/08 ,  F02D41/10 ,  F02D41/16 ,  F02D41/26 ,  F02D41/34 ,  F02D41/04

CPC分类号： F02D41/10 ,  F02D41/08 ,  F02D41/26 ,  F02D41/34 ,  Y02T10/44

摘要： There is a method for controlling the fuel supply of an internal combustion engine having a throttle valve in the intake air system. It is detected that an angular position of a crankshaft of the engine coincides with a predetermined crankshaft angular position. Whenever this coincidence is detected, the pressure in the intake air passage downstream of the throttle valve and the engine rotating speed or the value of the inverse number thereof is detected on the basis of the interval between the detections of the crankshaft angular position. The reference basic fuel supply amount which is to be supplied to the engine is determined in accordance with the present detection value P.sub.BAn of the pressure in the intake air passage. The present reference value M.sub.eAVEn having a predetermined functional relationship to the present detection value M.sub.en and previous reference value M.sub.eAVE(n-1) of the engine speed or of the value in inverse proportion thereof is set. The correction fuel supply amount is decided on the basis of the present reference value M.sub.eAVEn and is added to the basic fuel supply amount. Then the injection amount of fuel commensurate with the result of this addition is supplied to the engine. Thus, the driveability of the engine is improved.

摘要翻译： 存在用于控制在进气系统中具有节气门的内燃机的燃料供给的方法。 检测到发动机的曲轴的角度位置与预定的曲轴角度位置一致。 每当检测到这个一致时，基于曲轴角位置的检测之间的间隔来检测节流阀下游的进气通道的压力和发动机转速或其倒数的值。 根据进气通道中的压力的​​当前检测值PBAn来确定要提供给发动机的基准燃料供给量。 设定与当前检测值Men和发动机转速的值的反比例的先前的参考值MeAVE（n-1）具有预定的功能关系的本参考值MeAVEn。 基于本参考值MeAVEn来确定校正燃料供给量，并且被添加到基本燃料供给量。 然后将与该添加结果相称的燃料的喷射量提供给发动机。 因此，提高了发动机的驾驶性。

公开(公告)号：US4617901A

公开(公告)日：1986-10-21

申请号：US684495

申请日：1984-12-21

申请人： Yutaka Otobe ,  Akihiro Yamato

发明人： Yutaka Otobe ,  Akihiro Yamato

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02M51/00

CPC分类号： F02D41/148 ,  F02D41/1486

摘要： A method of controlling the air-fuel ratio of an air-fuel mixture being supplied to an internal combustion engine includes comparing the value of a signal indicative of the concentration of an exhaust gas ingredient with a predetermined reference value, detecting from the comparison result a first change in the air-fuel ratio of the mixture supplied to the engine from a value richer than a predetermined value to a value leaner than same, or a second change in the air-fuel ratio of the mixture from a value leaner than the predetermined value to a value richer than same, correcting the value of an air-fuel ratio control signal by increasing or decreasing same by a first predetermined correction value in response to the first change or the second change thus detected, and controlling the air-fuel ratio of the mixture in a feedback manner responsive to the value of the air-fuel ratio control signal thus corrected. A second predetermined correction value, in lieu of the first predetermined correction value, is applied to correction of the air-fuel ratio control signal in response to a selected one of the first change and the second change with a cycle a predetermined number of times as large as the fluctuation cycle of the exhaust gas ingredient concentration-indicative signal.

摘要翻译： 控制向内燃机供给的空气燃料混合物的空燃比的方法包括将表示废气成分浓度的信号的值与规定的基准值进行比较，从比较结果a 从提供给发动机的混合物的空燃比首先从比预定值更丰富的值改变为比其更稀的值，或者混合物的空燃比的第二变化是从比预定值更稀的值 值增加到比其更大的值，通过响应于如此检测到的第一变化或第二变化，将空燃比控制信号的值增加或减小第一预定校正值来校正空燃比控制信号的值，并且控制空燃比 以反馈方式响应于如此校正的空燃比控制信号的值。 代替第一预定校正值的第二预定校正值被应用于响应于所选择的第一变化和第二变化中的所选择的一个以预定次数的周期来校正空燃比控制信号 作为废气成分浓度指示信号的波动周期大。

公开(公告)号：US4576134A

公开(公告)日：1986-03-18

申请号：US618532

申请日：1984-06-08

申请人： Akihiro Yamato ,  Yutaka Otobe

发明人： Akihiro Yamato ,  Yutaka Otobe

IPC分类号： F02D41/00 ,  F02D41/08 ,  F02D41/24

CPC分类号： F02D41/08 ,  F02D41/2412

摘要： A fuel supply control method for an internal combustion engine having exhaust gas purifying means arranged in its exhaust passage, in which a plurality of predetermined basic fuel quantity values corresponding, respectively, to different predetermined values of at least one operating parameter of the engine are selectively read out in response to detected values of the same parameter to thereby determine fuel supply quantities appropriate to operating conditions of the engine. Among the above basic fuel quantity values, those which correspond to ones of the above predetermined parameter values that are to be assumed when the engine is operating in an idling region are set at such predetermined values as to obtain an air-fuel mixture having a predetermined air-fuel ratio at which the exhaust gas purifying means can exhibit the maximum conversion efficiency. When the engine is operating in the idling region, each of the above corresponding basic fuel quantity values which is read out is decreased by a predetermined correction amount.

摘要翻译： 一种用于内燃机的燃料供给控制方法，其具有布置在其排气通道中的排气净化装置，其中分别对应于发动机的至少一个操作参数的不同预定值的多个预定基本燃料量值被选择性地 响应于相同参数的检测值读出，从而确定适合于发动机的操作条件的燃料供应量。 在上述基本燃料量值中，对应于当发动机在怠速区域中操作时要假定的上述预定参数值中的那些值被设定为预定值，以获得具有预定值的空气 - 燃料混合物 排气净化单元能够呈现最大转换效率的空燃比。 当发动机在怠速区域中操作时，读出的上述对应的基本燃料量值中的每一个减少预定的校正量。

公开(公告)号：US4512321A

公开(公告)日：1985-04-23

申请号：US608998

申请日：1984-05-10

申请人： Akihiro Yamato

发明人： Akihiro Yamato

IPC分类号： F02D41/00 ,  F02D41/12 ,  F02D41/36 ,  F02M51/00

CPC分类号： F02D41/126 ,  F02D41/0087 ,  F02D41/123

摘要： A method of sequentially injecting fuel into the cylinders of a multi cylinder internal combustion engine in predetermined sequence in synchronism with generation of pulses of a trigger signal, wherein the quantity of fuel to be injected into each cylinder is set to a value appropriate to an operating condition of the engine then detected, upon generation of each pulse of the same signal, and the fuel supply to each cylinder is interrupted when the engine is decelerating in a predetermined operating condition. When it is determined that a predetermined condition for terminating the interruption of the fuel supply to the engine is satisfied, one of the above sequential injections is effected into a cylinder corresponding to a present pulse of the trigger signal at the time of generation of a present pulse of the same signal, and simultaneously an additional injection is effected into another cylinder corresponding to a preceding pulse of the trigger signal. Preferably, the quantity of fuel to be injected by the additional injection is set to be a value substantially equal to that by the above one of the sequential injections.

摘要翻译： 一种以与产生触发信号的脉冲同步的预定顺序将燃料顺次喷射到多缸内燃机的气缸中的方法，其中要喷射到每个气缸中的燃料量被设定为适合于操作的值 在产生相同信号的每个脉冲时，发动机的状态被检测到，并且当发动机在预定操作条件下减速时，每个气缸的燃料供应被中断。 当确定用于终止对发动机的燃料供应的中断的预定条件被满足时，上述顺序喷射中的一个在产生当前时刻被实现为对应于触发信号的当前脉冲的气缸 相同信号的脉冲，并且同时对与触发信号的先前脉冲相对应的另一个气缸进行附加的喷射。 优选地，通过附加喷射将要喷射的燃料量设定为基本上等于上述连续喷射的燃料量。

公开(公告)号：US4508083A

公开(公告)日：1985-04-02

申请号：US442620

申请日：1982-11-18

申请人： Shumpei Hasegawa ,  Akihiro Yamato

发明人： Shumpei Hasegawa ,  Akihiro Yamato

IPC分类号： F02B1/04 ,  F02D41/06 ,  F02D41/34 ,  F02D41/36 ,  F02M51/00

CPC分类号： F02D41/345 ,  F02D41/062 ,  F02B1/04 ,  Y02T10/44

摘要： A plurality of fuel injection valves are all opened at the same time to supply fuel to all the cylinders of the engine, immediately upon closing of the ignition switch. None of the fuel injection valves is opened until after the pistons of all the cylinders each have finished its one suction stroke after the above closing of the ignition switch. Then, all the fuel injection valves are successively opened in predetermined sequence in synchronism with pulses of a TDC signal generated after the completion of the above suction strokes of the pistons of all the cylinders, to supply fuel to their respective cylinders, thereby obtaining smooth and positive starting of the engine.

摘要翻译： 同时打开多个燃料喷射阀，以在点火开关闭合时立即向发动机的所有气缸供应燃料。 直到所有气缸的活塞在上述关闭点火开关之后已经完成了一次吸气行程之后，才打开燃油喷射阀。 然后，所有的燃料喷射阀以与所有气缸的活塞的上述吸入冲程完成之后产生的TDC信号的脉冲同步地按预定顺序依次打开，以将燃料供给到它们各自的气缸，从而获得平滑和 引擎正面启动

公开(公告)号：US4495927A

公开(公告)日：1985-01-29

申请号：US505069

申请日：1983-06-16

申请人： Akihiro Yamato

发明人： Akihiro Yamato

IPC分类号： F02B1/04 ,  F02D41/06 ,  F02D41/26 ,  F02D41/34 ,  F02D45/00 ,  F02N17/00 ,  F02M51/00

CPC分类号： F02D41/062 ,  F02B1/04

摘要： A method for controlling an internal combustion engine at the start of same, by means of a control system for controlling the operation of the engine, which includes a central processing unit normally operable with an operating voltage higher than a predetermined voltage. The central processing unit is adapted to be reset when the operating voltage rises across the above predetermined voltage after closing of the ignition switch of the engine. A plurality of different control manners are selectively applied for control of the operation of the engine, depending upon the position of the starter switch for actuating the starter of the engine, assumed during initialization of the central processing unit. The internal combustion engine includes a multi-cylinder engine, and the engine operation control system includes a fuel injection control system. Preferably, if the starter switch is in an open position during initialization of the central processing unit, a first control manner is selected wherein fuel injections are effected into all the engine cylinders at the same time in synchronism with generation of a first output pulse from a top-dead-center sensor after completion of the initialization of the central processing unit, and if the starter switch is in a closed position during the initialization, a second control manner is selected wherein fuel injections are effected into all the engine cylinders at the same time in synchronism with generation of a first output pulse from a cylinder-discriminating sensor after completion of the initialization. Following the fuel injection according to the first or second control manner selected, fuel injections are effected into the engine cylinders in a successive manner in synchronism with generation of output pulses from the top-dead-center sensor.

摘要翻译： 一种用于通过用于控制发动机的操作的控制系统控制内燃机的开始的方法，该控制系统包括通常可操作的工作电压高于预定电压的中央处理单元。 中央处理单元适于在关闭发动机的点火开关之后工作电压升高超过上述预定电压时复位。 根据在中央处理单元的初始化期间假定的用于起动发动机起动器的起动开关的位置，选择性地应用多种不同的控制方式来控制发动机的操作。 内燃机包括多缸发动机，发动机运转控制系统包括燃料喷射控制系统。 优选地，如果在中央处理单元的初始化期间起动器开关处于打开位置，则选择第一控制方式，其中同时与所产生的第一输出脉冲同时地对所有发动机气缸进行燃料喷射 在中央处理单元的初始化完成之后，如果启动器开关处于关闭位置，则选择第二控制方式，其中在相同的所有发动机气缸中进行燃料喷射 在初始化完成之后与来自气缸鉴别传感器的第一输出脉冲的产生同步。 在根据所选择的第一或第二控制方式的燃料喷射之后，与来自上止点传感器的输出脉冲的产生同步地以连续的方式对发动机气缸进行燃料喷射。

公开(公告)号：US4844038A

公开(公告)日：1989-07-04

申请号：US946741

申请日：1986-12-24

申请人： Akihiro Yamato ,  Masahiko Yakuwa

发明人： Akihiro Yamato ,  Masahiko Yakuwa

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02D41/22 ,  G01M15/04 ,  G01R31/02

CPC分类号： F02D41/1474 ,  F02D41/1495

摘要： A method of detecting abnormality in an exhaust gas concentration sensor in an internal combustion engine equipped with a fuel supply control system which controls a quantity of fuel to be supplied to the engine in a feedback manner responsive to a value of an air-fuel ratio correction value set in response to an output signal from the sensor. The sensor output signal is monitored from the time a first predetermined period of time has elongated from the start of the engine. The sensor is diagnosed as abnormal if the output signal has continually maintained a substantially constant value over a second predetermined time period elapsed following the first predetermined time period. The first predetermined time period corresponds to a time lag in rise of the output signal. The second predetermined time period is set such that the sum of the first and second preetermined time periods is shorter than a period of time within which the sensor becomes completely activated after the start of the engine.

摘要翻译： 一种检测内燃机中的排气浓度传感器的异常的方法，所述内燃机配备有燃料供给控制系统，所述燃料供给控制系统响应于空燃比校正值而以反馈方式控制供给到发动机的燃料量 响应于来自传感器的输出信号而设定的值。 从第一预定时间段起，从发动机起动开始，监测传感器输出信号。 如果输出信号在第一预定时间段之后经过的第二预定时间段内持续保持基本上恒定的值，则传感器被诊断为异常。 第一预定时间段对应于输出信号的上升时间滞后。 第二预定时间段被设置为使得第一和第二预定时间段的总和短于在发动机起动之后传感器完全启动的时间段。

公开(公告)号：US4531495A

公开(公告)日：1985-07-30

申请号：US493978

申请日：1983-05-12

申请人： Akihiro Yamato ,  Yutaka Otobe

发明人： Akihiro Yamato ,  Yutaka Otobe

IPC分类号： F01P11/16 ,  F02B1/04 ,  F02D41/04 ,  F02D41/06 ,  F02D41/22 ,  F02D5/00

CPC分类号： F02D41/064 ,  F02D41/222 ,  F01P11/16 ,  F02B1/04 ,  F02D2041/227 ,  Y02T10/40

摘要： A fuel supply control method for electronically controlling the quantity of fuel being supplied to an internal combustion engine at the start of the engine, in response to values of engine control parameters including at least the engine temperature. When there is an abnormality in an engine temperature detecting means that detects the value of the engine temperature, while the engine is operating in a predetermined starting operating condition, control is effected by gradually increasing the quantity of fuel being supplied to the engine with the progress of time starting from a time the engine starter is switched on, by the use of a predetermined dummy signal indicative of engine temperature, in place of an output signal from the aforementioned engine temperature detecting means. Preferably, the value of the above dummy signal is set so as to change from a higher engine temperature value to lower engine temperature values in a successive and stepwise manner at an interval of a predetermined period of time. Also, the value of the above dummy signal is maintained at a predetermined value in the post-starting operating condition of the engine.

摘要翻译： 一种燃料供给控制方法，用于响应于至少包括发动机温度的发动机控制参数的值，电子地控制在发动机起动时供给内燃机的燃料量。 当检测发动机温度的值的发动机温度检测装置发生异常时，发动机在预定的起动运行状态下运转时，通过逐渐增加向发动机供给的燃料量的进行而进行控制 代替来自上述发动机温度检测装置的输出信号，通过使用表示发动机温度的预定虚拟信号，从发动机起动器开始的时间开始。 优选地，上述虚拟信号的值被设定为以预定时间段的间隔以连续和逐步的方式从更高的发动机温度值变化到较低的发动机温度值。 此外，上述虚拟信号的值在发动机的起动运转状态下保持在规定值。