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公开(公告)号：US06371076B1
公开(公告)日：2002-04-16
申请号：US09636260
申请日：2000-08-10
申请人： Yusuke Kamijo , Yoshiyuki Yamashita , Noboru Takagi , Senji Kato , Yukikazu Ito
发明人： Yusuke Kamijo , Yoshiyuki Yamashita , Noboru Takagi , Senji Kato , Yukikazu Ito
IPC分类号： F02B1700
CPC分类号： F02D35/027 , F02D41/3029 , F02D41/3076 , F02P5/1523 , Y02T10/128 , Y02T10/46
摘要： An engine performs a combustion mode selected from a plurality of combustion modes. The combustion modes include stratified-charge combustion and homogeneous-charge combustion. A electronic control unit switches the combustion mode in accordance with the current running conditions of the engine. The electronic control unit limits a running area in which stratified-charge combustion is performed in accordance with the frequency of engine knocking occurrences. This properly executes knocking control without adversely affecting the execution of is stratified-charge combustion.
摘要翻译： 发动机执行从多个燃烧模式中选择的燃烧模式。 燃烧模式包括分层充气燃烧和均质燃料。 电子控制单元根据发动机的当前运行状况切换燃烧模式。 电子控制单元根据发动机爆震的频率限制进行分层充气燃烧的运行区域。 这样可以适当地执行敲击控制，而不会对分层充气燃烧的执行产生不利影响。
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公开(公告)号：US5529034A
公开(公告)日：1996-06-25
申请号：US334709
申请日：1994-11-04
申请人： Shigeru Sone , Tadahisa Naganawa , Senji Kato , Kouji Endou , Nobuhisa Ohkawa , Atsushi Gotou
发明人： Shigeru Sone , Tadahisa Naganawa , Senji Kato , Kouji Endou , Nobuhisa Ohkawa , Atsushi Gotou
CPC分类号： F02D13/0261 , F01L1/34406 , F02D13/0215 , F02D41/221 , F01L2001/0537 , F01L2201/00 , F02B1/04 , F02B3/06 , F02D2041/001 , Y02T10/18 , Y02T10/40
摘要： A cam shaft of an engine is provided with a timing change mechanism (VVT) which is driven by hydraulic pressure to alter the timing of a intake valve (valve timing). This VVT is controlled to change the valve overlap of the intake valve and an exhaust valve, thereby adjusting the suction and exhaust in and from a combustion chamber. To control the VVT, an electronic control unit (ECU) computes a target value for the valve timing in accordance with the running condition of the engine and controls the supply of the hydraulic pressure to the VVT based on the target value. The ECU determines the level of the actual hydraulic pressure given to the VVT. When the actual valve timing does not lie in a predetermined range with respect to the target value, the ECU determines that an abnormality has occurred in the VVT, and executes a predetermined fail safe routine. When the hydraulic pressure is equal to or smaller than a reference value, the ECU suppresses WT malfunction determinations.
摘要翻译： 发动机的凸轮轴设置有由液压驱动以改变进气门的正时（气门正时）的定时改变机构（VVT）。 该VVT被控制以改变进气门和排气阀的阀重叠，从而调节来自燃烧室的吸入和排出。 为了控制VVT，电子控制单元（ECU）根据发动机的运行状况计算出阀正时的目标值，并根据目标值控制对VVT的液压供给。 ECU确定给予VVT的实际液压压力水平。 当实际气门正时相对于目标值不在预定范围内时，ECU判定VVT中发生了异常，并执行预定的故障安全程序。 当液压等于或小于参考值时，ECU抑制WT故障确定。
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3.发明授权
公开(公告)号：US4886030A
公开(公告)日：1989-12-12
申请号：US162942
申请日：1988-02-26
申请人： Hidehiro Oba , Senji Kato
发明人： Hidehiro Oba , Senji Kato
摘要： A method for controlling fuel injection rate in internal combustion engine in accordance with the intake pressure and the engine speed. The method has the steps of determining the intake pressure using, as a variable, the period of time after a change in the throttle opening, and computing a basic fuel injection period on the basis of the thus computed intake pressure and the engine speed. The fuel injection is conducted by a system in accordance with this method. The system determines the intake pressure in the steady state of engine operation in accordance with the throttle opening and the fuel injection rate, effects a correction on the thus determined intake pressure so as to take into account a delay in response of the intake pressure to the transient period, and determines the basic fuel injection period on the basis of the corrected intake pressure and the engine speed. With this method and system, the fuel injection rate can be controlled in a high degree of conformity with the injection rate demanded by the engine, because the injection rate is determined on the basis of the engine speed and the actual intake pressure which can be predicted with a high degree of precision.
摘要翻译： 根据进气压力和发动机转速来控制内燃机的燃料喷射率的方法。 该方法具有如下步骤：使用节气门开度变化之后的时间段作为变量来确定进气压力，并且基于由此计算出的进气压力和发动机转速来计算基本燃料喷射周期。 燃料喷射由根据该方法的系统进行。 该系统根据节气门开度和燃料喷射速度来确定发动机运转的稳定状态下的进气压力，对这样确定的进气压力进行校正，以便考虑到对进气压力的响应的延迟 并且基于校正的进气压力和发动机转速来确定基本燃料喷射期间。 利用该方法和系统，可以以与发动机要求的喷射率高度一致的方式控制燃料喷射率，因为喷射速率是基于可以预测的发动机转速和实际进气压力来确定的 具有很高的精度。
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4.发明授权公开(公告)号：US09328685B2
公开(公告)日：2016-05-03
申请号：US14212400
申请日：2014-03-14
申请人： Kenji Suzuki , Hiroshi Miyamoto , Yasushi Iwazaki , Senji Kato
发明人： Kenji Suzuki , Hiroshi Miyamoto , Yasushi Iwazaki , Senji Kato
CPC分类号： F02D41/1495 , F02D41/0085 , F02D41/1441 , F02D41/1456 , F02D41/2438
摘要： A first parameter correlated with a degree of fluctuation of output from an air-fuel ratio sensor is calculated, and whether or not the calculated first parameter has a value between a predetermined primary determination upper-limit value α1H and a primary determination lower-limit value is determined. Such forced active control as reduces an air-fuel ratio shift in one of the cylinders which is subjected to a most significant air-fuel ratio shift is performed when the calculated first parameter is determined to have a value between the predetermined primary determination upper-limit value and the primary determination lower-limit value. A first parameter is calculated while the forced active control is in execution. The calculated first parameter is compared with a predetermined secondary determination value to determine whether or not variation abnormality is present.
摘要翻译： 计算与空燃比传感器的输出的波动程度相关的第一参数，并且计算出的第一参数是否具有预定的一次判定上限值α1H和一次判定下限值之间的值 决心，决意，决定。 当所计算出的第一参数被确定为具有预定的主要确定上限之间的值时，执行这种强制主动控制，以减少经受最大空燃比移动的一个气缸中的空燃比偏移 值和主要判定下限值。 在强制主动控制正在执行时计算第一个参数。 将计算出的第一参数与预定的次级判定值进行比较，以确定是否存在变化异常。
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公开(公告)号：US06505599B1
公开(公告)日：2003-01-14
申请号：US09656159
申请日：2000-09-06
申请人： Zenichiro Mashiki , Jun Maemura , Rihito Kaneko , Masahide Nagano , Senji Kato , Hiroyuki Mizuno
发明人： Zenichiro Mashiki , Jun Maemura , Rihito Kaneko , Masahide Nagano , Senji Kato , Hiroyuki Mizuno
IPC分类号： F02D4102
CPC分类号： F02D41/3076 , F02B2075/125 , F02D41/0032 , F02D41/3029 , F02M25/08 , Y02T10/128
摘要： A fuel vapor treating mechanism includes a canister for adsorbing fuel vapor produced in a fuel feed system. The treating mechanism purges the fuel vapor adsorbed by the canister, along with air, to an intake system of the engine. An ECU computes a value representing the flow rate of the purged gas as a value that represents the capability of the treating apparatus. The ECU sets a decision value in accordance with the amount of the fuel vapor produced in the fuel feed system. The decision value represents a required capability of the treating mechanism. When the value representing the capability is less than the decision value, the ECU prohibits stratified charge combustion and causes the engine to perform homogeneous charge combustion. Therefore, as many opportunities as possible are provided to perform stratified charge combustion, which improves fuel efficiency.
摘要翻译： 燃料蒸汽处理机构包括用于吸附在燃料供给系统中产生的燃料蒸气的罐。 处理机构将由罐吸附的燃料蒸气与空气一起清洗到发动机的进气系统。 ECU计算表示净化气体的流量的值作为表示处理装置的能力的值。 ECU根据在燃料供给系统中产生的燃料蒸汽的量来设定决定值。 决策值代表治疗机制所需的能力。 当表示能力的值小于决定值时，ECU禁止分层充气燃烧，并使发动机进行均匀的充气燃烧。 因此，提供尽可能多的机会来执行分层充气燃烧，这提高燃料效率。
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公开(公告)号：US5715779A
公开(公告)日：1998-02-10
申请号：US759501
申请日：1996-12-04
申请人： Senji Kato , Tadashi Saito , Tadahisa Naganawa , Kouji Endou , Nobuhisa Ohkawa
发明人： Senji Kato , Tadashi Saito , Tadahisa Naganawa , Kouji Endou , Nobuhisa Ohkawa
CPC分类号： F02D13/0215 , F01L1/34406 , F02D13/0234 , F02D13/0238 , F02D13/0261 , F02D41/0002 , F02D41/221 , F01L2001/0537 , F01L2001/34436 , F01L2201/00 , F02B1/04 , F02D2041/001 , Y02T10/18 , Y02T10/42
摘要： In detecting the occurrence of an abnormality in a variable valve timing mechanism, which continuously changes a valve timing by advancing or delaying the displacement angle of an intake-side cam shaft with respect to a crankshaft, an abnormality detecting apparatus for a valve timing control apparatus determines that the variable valve timing mechanism is failing when the absolute value of the difference between a target displacement angle and a correct real displacement angle, obtained by subtracting the maximum delay-angle learning value from the real displacement angle, is greater than a first predetermined value and the absolute value of the difference between a correct real displacement angle and a previous correct real displacement angle is equal to or smaller than a second predetermined value.
摘要翻译： 在通过推进或延迟进气侧凸轮轴相对于曲轴的位移角度连续地改变气门正时的可变气门正时机构中发现异常的情况下，用于气门正时控制装置的异常检测装置 当通过从实际位移角度减去最大延迟角学习值而获得的目标位移角与正确实际位移角之间的差的绝对值大于第一预定值时，确定可变气门正时机构发生故障 值，并且正确的实际位移角与先前的正确实际位移角之间的差的绝对值等于或小于第二预定值。
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公开(公告)号：US5664528A
公开(公告)日：1997-09-09
申请号：US758703
申请日：1996-12-03
CPC分类号： F02D13/0215 , F01L1/34406 , F02D13/0234 , F02D13/0238 , F02D13/0261 , F01L2001/0537 , F01L2201/00 , F02B2275/18 , F02D2013/0292 , F02D2041/001 , Y02T10/18
摘要： A valve timing control apparatus that continuously controls the valve timing of an intake valve or an exhaust valve of an engine. This apparatus includes a hydraulic variable valve timing mechanism, a hydraulic control valve and an electronic control unit for controlling the control valve. The variable valve timing mechanism alters the valve timing to change the valve overlap of the intake valve with respect to the exhaust valve. The hydraulic control valve controls the hydraulic pressure supplied to the variable valve timing mechanism. The real phase of the valve timing is coincided with a target phase that corresponds with the running conditions of the engine. When the real phase of the valve timing approaches the target phase, the hydraulic control valve is controlled to sustain the phase of that instant. The electronic control unit, which learns the control state of the valve-timing sustaining control, sets an initial learning value that reduces the valve overlap when the learning has started. A restricting means for restricting a correction means is included.
摘要翻译： 连续地控制发动机的进气门或排气门的气门正时的气门正时控制装置。 该装置包括液压可变气门正时机构，液压控制阀和用于控制控制阀的电子控制单元。 可变气门正时机构改变气门正时以改变进气门相对于排气门的重叠。 液压控制阀控制提供给可变气门正时机构的液压。 气门正时的实相与与发动机的运行状态相对应的目标相位一致。 当阀门正时相接近目标阶段时，液压控制阀被控制以维持该时刻的相位。 了解阀门定时维持控制的控制状态的电子控制单元设置在学习开始时减小阀重叠的初始学习值。 包括用于限制校正装置的限制装置。
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公开(公告)号：US5628286A
公开(公告)日：1997-05-13
申请号：US622715
申请日：1996-03-26
申请人： Senji Kato , Nobuhisa Ohkawa , Shigeru Sone , Tadahisa Naganawa , Yoshihito Moriya , Yoshiya Yamashita , Hitoshi Uda , Yuji Yoshihara
发明人： Senji Kato , Nobuhisa Ohkawa , Shigeru Sone , Tadahisa Naganawa , Yoshihito Moriya , Yoshiya Yamashita , Hitoshi Uda , Yuji Yoshihara
CPC分类号： F02D13/0215 , F01L1/34406 , F02D13/0261 , F01L2001/0537 , F01L2001/34426 , F01L2201/00 , F02D2041/001 , Y02T10/18
摘要： An improvement of a valve timing control apparatus for an engine is disclosed. The apparatus has an intake valve and an exhaust valve which are alternately opened and closed in a valve timing sequence according to a rotation of a cam shaft. A timing pulley mounted on the cam shaft has a housing accommodating a plunger movable therein and a sleeve secured to the cam shaft. The housing has a first and second pressure chambers defined by the plunger and sealed with respect to each other. The plunger is arranged to move in an axial direction to selectively advance and retard the cam shaft based on differential pressure between the first pressure chamber and the second pressure chamber. A controller controls an electromagnetic valve with a specific control value to adjust the fluid pressure to be supplied to the first and second pressure chambers to maintain the valve timing sequence converged to a target valve timing. The controller corrects the specific value based on a rotational speed of the engine when the plunger is in one of the extreme positions in the chambers, and adjusts the fluid pressures based on the corrected specific value.
摘要翻译： 公开了一种用于发动机的气门正时控制装置的改进。 该装置具有根据凸轮轴的旋转以气门正时顺序交替地打开和关闭的进气门和排气门。 安装在凸轮轴上的正时滑轮具有容纳可移动到其中的柱塞的壳体和固定到凸轮轴的套筒。 壳体具有由柱塞限定并相对于彼此密封的第一和第二压力室。 柱塞布置成沿轴向方向移动以根据第一压力室和第二压力室之间的压差选择性地前进并延迟凸轮轴。 控制器控制具有特定控制值的电磁阀，以调节要供应到第一和第二压力室的流体压力，以保持气门正时序列收敛到目标气门正时。 当柱塞处于室内的极限位置之一时，控制器基于发动机的转速校正特定值，并且基于校正的特定值来调节流体压力。
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公开(公告)号：US5537961A
公开(公告)日：1996-07-23
申请号：US552817
申请日：1995-11-03
申请人： Sone Shigeru , Tadahisa Naganawa , Senji Kato , Kouji Endou , Nobuhisa Ohkawa , Atsushi Gotou
发明人： Sone Shigeru , Tadahisa Naganawa , Senji Kato , Kouji Endou , Nobuhisa Ohkawa , Atsushi Gotou
CPC分类号： F02D13/0261 , F01L1/34406 , F02D13/0215 , F02D41/221 , F01L2001/0537 , F01L2201/00 , F02B1/04 , F02B3/06 , F02D2041/001 , Y02T10/18 , Y02T10/40
摘要： A cam shaft of an engine is provided with a timing change mechanism (VVT) which is driven by hydraulic pressure to alter the timing of a intake valve (valve timing). This VVT is controlled to change the valve overlap of the intake valve and an exhaust valve, thereby adjusting the suction and exhaust in and from a combustion chamber. To control the VVT, an electronic control unit (ECU) computes a target value for the valve timing in accordance with the running condition of the engine and controls the supply of the hydraulic pressure to the VVT based on the target value. The ECU determines the level of the actual hydraulic pressure given to the VVT. When the actual valve timing does not lie in a predetermined range with respect to the target value, the ECU determines that an abnormality has occurred in the VVT, and executes a predetermined fail safe routine. When the hydraulic pressure is equal to or smaller than a reference value, the ECU suppresses VVT malfunction determinations.
摘要翻译： 发动机的凸轮轴设置有由液压驱动以改变进气门的正时（气门正时）的定时改变机构（VVT）。 该VVT被控制以改变进气门和排气阀的阀重叠，从而调节来自燃烧室的吸入和排出。 为了控制VVT，电子控制单元（ECU）根据发动机的运转状况计算出阀正时的目标值，并根据目标值控制对VVT的液压供给。 ECU确定给予VVT的实际液压压力水平。 当实际气门正时相对于目标值不在预定范围内时，ECU判定VVT中发生了异常，并执行预定的故障安全程序。 当液压等于或小于参考值时，ECU抑制VVT故障确定。
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10.发明授权公开(公告)号：US06520148B2
公开(公告)日：2003-02-18
申请号：US09837207
申请日：2001-04-19
申请人： Koichi Yonezawa , Osamu Hosokawa , Jun Takahashi , Senji Kato , Hirohisa Kishi , Noboru Takagi , Takayuki Demura
发明人： Koichi Yonezawa , Osamu Hosokawa , Jun Takahashi , Senji Kato , Hirohisa Kishi , Noboru Takagi , Takayuki Demura
IPC分类号： F02D4106
CPC分类号： F02D11/105 , F02D41/064 , F02D43/00 , F02D2041/389
摘要： A direct-fuel-injection-type internal combustion engine is equipped with an injector for injecting fuel directly into a combustion chamber of a cylinder. A controller controls the degree of opening of a throttle valve for adjusting the amount of air drawn into the combustion chamber and sets the throttle valve to a closed valve state by setting the degree of opening of the throttle valve to a degree of opening that is on the closed valve side of a post-engine start target degree of opening, when the engine is to be started. After it is determined that a start of the engine has been accomplished, the controller opens the throttle valve by gradually increasing the degree of opening of the throttle valve from the degree of opening of the closed valve state to the post-engine start target degree of opening.
摘要翻译： 一种直接燃料喷射式内燃机配备有用于将燃料直接喷射到气缸的燃烧室中的喷射器。 控制器控制用于调节吸入燃烧室的空气量的节流阀的打开程度，并且通过将节流阀的开度设定为开启程度将节气门设定为闭阀状态 当发动机起动时，发动机起动目标开度的关闭阀侧。 在确定发动机的启动已经完成之后，控制器通过将节流阀的打开程度从关闭阀状态的打开程度逐渐增加到发动机起动目标程度来打开节气门 开放
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