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    • 1. 发明授权
    • Processor and multiprocessor system
    • 处理器和多处理器系统
    • US06584580B1
    • 2003-06-24
    • US09460519
    • 1999-12-14
    • Akihiro YamatoKei Yamamoto
    • Akihiro YamatoKei Yamamoto
    • G06F1100
    • G06F11/0793G06F11/008G06F11/0724G06F11/073G06F12/0831G06F2212/1032
    • For use in a multiprocessor system in which a plurality of processors share a main memory via a processor bus, an error processing unit (EU) that determines an error level is provided in each processor. When an L2 cache control unit (SU) that controls an L2 cache in the write-back mode, a bus interface unit (PU), and so on, are normal and snoop processing may be continued, the snoop processing is continued in the processor, in which an error occurred, regardless of whether or not the processor is reset. This prevents the system from going down even when data coherence among L2 caches is lost due to an error that occurs in one of processors.
    • 为了在多处理器系统中使用多处理器系统,其中多个处理器经由处理器总线共享主存储器,在每个处理器中提供了确定错误级别的错误处理单元(EU)。 当在回写模式下控制L2高速缓存的L2高速缓存控制单元(SU),总线接口单元(PU)等是正常的并且可以继续进行侦听处理时,在处理器中继续进行窥探处理 ,其中发生错误,而不管处理器是否被复位。 即使在L2缓存之间的数据一致性由于在​​一个处理器中发生的错误而丢失,也可以防止系统下降。
    • 2. 发明授权
    • Abnormality detecting method for exhaust gas concentration sensor for
internal combustion engines
    • 内燃机排气浓度传感器异常检测方法
    • US4844038A
    • 1989-07-04
    • US946741
    • 1986-12-24
    • Akihiro YamatoMasahiko Yakuwa
    • Akihiro YamatoMasahiko Yakuwa
    • F02D41/00F02D41/14F02D41/22G01M15/04G01R31/02
    • F02D41/1474F02D41/1495
    • 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.
    • 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。
    • 3. 发明授权
    • Fuel supply control method having fail-safe function for abnormalities
in engine temperature detecting means at the start of the engine
    • 在发动机起动时,对于发动机温度检测单元的异常具有故障保护功能的燃料供给控制方法
    • US4531495A
    • 1985-07-30
    • US493978
    • 1983-05-12
    • Akihiro YamatoYutaka Otobe
    • Akihiro YamatoYutaka Otobe
    • F01P11/16F02B1/04F02D41/04F02D41/06F02D41/22F02D5/00
    • F02D41/064F02D41/222F01P11/16F02B1/04F02D2041/227Y02T10/40
    • 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.
    • 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。
    • 4. 发明授权
    • Electronic fuel supply control system for internal combustion engines,
having exhaust gas recirculation control
    • 用于内燃机的电子燃料供应控制系统,具有废气再循环控制
    • US4448178A
    • 1984-05-15
    • US440542
    • 1982-11-10
    • Akihiro YamatoShigeo Umesaki
    • Akihiro YamatoShigeo Umesaki
    • F02D41/02F02B1/04F02D21/08F02D41/32F02D41/36F02D43/00F02M25/07F02M25/06
    • F02D41/005F02D41/32F02D41/36F02B1/04Y02T10/44Y02T10/47
    • In an electronic fuel supply control system for an internal combustion engines, the fuel quantity being supplied to the engine is set to different values in accordance with the operating condition of the engine, between when the exhaust gas recirculation is operated and when it is not operated, for achieving proper air/fuel ratios. Further, immediately after a valve lift command is outputted at full closing of the exhaust gas recirculation valve, which is indicative of opening of the valve, a quantity of fuel set as applicable when the exhaust gas recirculation is not operated is supplied to the engine until the actual valve opening increases to a predetermined value. Immediately after a valve lift command is outputted at opening of the valve, which is indicative of full closing of the valve, a quantity of fuel set as applicable when the exhaust gas recirculation is operated is supplied to the engine until the actual valve opening decreases to a predetermined value. Thus a response lag of the exhaust gas recirculation valve is compensated for.
    • 在用于内燃机的电子燃料供应控制系统中,根据发动机的运行状态,在运行排气再循环与不运转时,向发动机供给的燃料量被设定为不同的值 ,以达到适当的空气/燃料比。 此外,在指示阀打开的排气再循环阀的完全关闭之后立即输出气门升程命令之后,在排气再循环未被运转时适用的燃料量被供给到发动机直到 实际阀开度增加到预定值。 在阀的打开时输出阀提升命令之后,紧接着指示阀的完全关闭,当排气再循环被操作时适用的燃料量被提供给发动机,直到实际阀开度减小到 预定值。 因此,废气再循环阀的响应滞后被补偿。
    • 7. 发明授权
    • Method for controlling the fuel supply of an internal combustion engine
    • 用于控制内燃机的燃料供给的方法
    • US4671241A
    • 1987-06-09
    • US736868
    • 1985-05-22
    • Akihiro Yamato
    • Akihiro Yamato
    • F02D41/14F02D41/00F02D41/06F02D41/08F02D41/10F02D41/16F02D41/26F02D41/34F02D41/04
    • F02D41/10F02D41/08F02D41/26F02D41/34Y02T10/44
    • 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.
    • 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。
    • 8. 发明授权
    • Air-fuel ratio feedback control method for internal combustion engines
    • 内燃机空燃比反馈控制方法
    • US4617901A
    • 1986-10-21
    • US684495
    • 1984-12-21
    • Yutaka OtobeAkihiro Yamato
    • Yutaka OtobeAkihiro Yamato
    • F02D41/00F02D41/14F02M51/00
    • F02D41/148F02D41/1486
    • 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.
    • 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。
    • 9. 发明授权
    • Fuel supply control method for internal combustion engines capable of
improving accelerability of the engine from an idling region thereof
    • 能够提高发动机从怠速区域的加速性的内燃机的燃料供给控制方法
    • US4576134A
    • 1986-03-18
    • US618532
    • 1984-06-08
    • Akihiro YamatoYutaka Otobe
    • Akihiro YamatoYutaka Otobe
    • F02D41/00F02D41/08F02D41/24
    • F02D41/08F02D41/2412
    • 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.
    • 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。
    • 10. 发明授权
    • Fuel supply control method for multi cylinder internal combustion
engines after termination of fuel cut
    • 燃油切断后多缸内燃机燃油供给控制方法
    • US4512321A
    • 1985-04-23
    • US608998
    • 1984-05-10
    • Akihiro Yamato
    • Akihiro Yamato
    • F02D41/00F02D41/12F02D41/36F02M51/00
    • F02D41/126F02D41/0087F02D41/123
    • 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.
    • 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。