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公开(公告)号：US5474045A
公开(公告)日：1995-12-12
申请号：US266630
申请日：1994-06-28
IPC分类号： F02D41/18 , F02D35/02 , F02D37/02 , F02D41/32 , F02D41/36 , F02D43/00 , F02D45/00 , F02P5/152 , F02P5/153
CPC分类号： F02D35/023 , F02D37/02 , F02D41/32 , F02D2041/286 , F02D41/18
摘要： An engine control device comprises: crank angle sensor provided for the cylinders of an engine; cylinder internal pressure sensor for detecting the internal pressures of the cylinders according to the output signals of the crank angle sensor; pressure normalizing unit for normalizing the cylinder internal pressures thus detected, according to the cylinder internal pressure which is obtained when the engine is in standard state; engine speed detector; charge efficiency calculating unit for calculating the charge efficiencies of the cylinders by using the output signals of the pressure normalizing unit and the engine speed detector; operating condition detecting unit for detecting the outputs of the pressure normalizing unit and the engine speed detector as operating conditions, calculation control unit for calculating the air/fuel ratio and the ignition timing of each cylinder according to the operating conditions; and adjusting unit for adjusting the air/fuel ratios and ignition timing of the cylinders according to the output of the calculation control unit, thereby to control the air/fuel ratios and ignition timing of the cylinders with high accuracy.
摘要翻译： 发动机控制装置包括：用于发动机气缸的曲柄角传感器; 气缸内部压力传感器，用于根据曲柄角传感器的输出信号检测气缸的内部压力; 压力归一化单元，用于根据当发动机处于标准状态时获得的气缸内部压力来标准化所检测到的气缸内部压力; 发动机转速检测器; 充电效率计算单元，用于通过使用压力归一化单元和发动机速度检测器的输出信号来计算气缸的充电效率; 操作条件检测单元，用于检测压力归一化单元和发动机速度检测器的输出作为操作条件;计算控制单元，用于根据操作条件计算每个气缸的空燃比和点火正时; 以及调节单元，用于根据计算控制单元的输出调节气缸的空燃比和点火正时，从而高精度地控制气缸的空燃比和点火正时。
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2.发明授权
公开(公告)号：US5544058A
公开(公告)日：1996-08-06
申请号：US138057
申请日：1993-10-19
申请人： Akira Demizu , Yukinobu Nishimura , Masakazu Sugai
发明人： Akira Demizu , Yukinobu Nishimura , Masakazu Sugai
CPC分类号： G01M15/11
摘要： A microcomputer-based misfire detecting apparatus for a multi-cylinder internal combustion engine. A crank angle sensor is coupled to the engine for detecting first and second predetermined angular intervals set before and after a predetermined reference crank position close to a TDC preceding to combustion stroke in each of the cylinders. An acceleration detector is connected to the output of the crank angle sensor for determining an acceleration based on a time ratio between times taken for a crank shaft to rotate through the first and second predetermined angular intervals, respectively, from the output signal of the crank angle sensor. A misfire occurrence detector is connected to the acceleration detector for detecting misfire occurring in the engine cylinder on the basis of the output signal of the acceleration detector.
摘要翻译： 一种用于多缸内燃机的基于微机的失火检测装置。 曲柄角传感器联接到发动机，用于检测在每个气缸中靠近燃烧冲程之前的TDC的预定参考曲柄位置之前和之后设置的第一和第二预定角度间隔。 加速度检测器连接到曲轴转角传感器的输出端，用于根据曲柄轴的旋转角度与第一和第二预定角度间隔之间的时间比率，根据曲轴转角的输出信号，确定加速度 传感器。 基于加速度检测器的输出信号将失火发生检测器连接到加速度检测器，用于检测在发动机气缸中发生的失火。
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3.发明授权
公开(公告)号：US5497328A
公开(公告)日：1996-03-05
申请号：US138058
申请日：1993-10-19
申请人： Masakazu Sugai , Akira Demizu
发明人： Masakazu Sugai , Akira Demizu
CPC分类号： G01M15/11
摘要： A misfire detection device for a multi-cylinder internal combustion engine detects levels of angular acceleration .beta. of the crankshaft corresponding to predetermined phase intervals of respective cylinders. Further, the differences .DELTA..beta. between the levels of angular acceleration corresponding to successively ignited cylinders are calculated as the combustion condition parameters corresponding to respective cylinders, and when the absolute variance .DELTA..beta.R of the levels of combustion condition parameter (i.e., difference of acceleration .DELTA..beta.) corresponding to cylinders whose ignition timings are separated by 360 degrees of the crank angle is continuously less than a predetermined judgment level, an occurrence of continuous misfires is detected.
摘要翻译： 用于多缸内燃机的失火检测装置检测对应于各个气缸的预定相位间隔的曲轴的角加速度β的水平。 此外，对应于相继点燃的气缸的角加速度的水平之间的差ΔTATA被计算为对应于各个气缸的燃烧条件参数，并且当燃烧条件参数水平（即，加速度差异）的绝对方差DELTAβR 对应于其点火正时以曲柄角360度分开的气缸的DELTAβ值连续小于预定的判断水平，则检测到连续的失火的发生。
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公开(公告)号：US5337240A
公开(公告)日：1994-08-09
申请号：US761531
申请日：1991-09-18
申请人： Akihiro Nakagawa , Akira Demizu , Ryoji Nishiyama
发明人： Akihiro Nakagawa , Akira Demizu , Ryoji Nishiyama
CPC分类号： G01M15/11
摘要： A misfiring sensing apparatus for an internal combustion engine measures the length of time required for two periods during the operation of an engine, each of the periods corresponding to a predetermined number of degrees of rotation of the crankshaft of the engine and corresponding to prescribed positions of the pistons of the engine. The two periods are selected so that the ratio of the lengths of the two periods will change when one of the cylinders of the engine is misfiring. Misfiring is detected based on the value of the ratio. In one form of the invention, misfiring is sensed by comparing the ratio with a reference value. In another form of the invention, the ratio is used to calculate a value indicative of the current angular acceleration of the crankshaft of the engine, and the calculated value is compared with a reference value to determine whether knocking is taking place.
摘要翻译： 用于内燃机的失火感测装置测量在发动机操作期间两个周期所需的时间长度，每个时间段对应于发动机的曲轴的预定旋转角度，并且对应于 发动机的活塞。 选择这两个周期，使得当发动机的一个气缸发生故障时，两个周期的长度的比率将改变。 基于比率的值检测到失火。 在本发明的一种形式中，通过将比值与参考值进行比较来检测失火。 在本发明的另一形式中，该比率用于计算表示发动机曲轴的当前角加速度的值，并将计算值与参考值进行比较以确定是否发生爆震。
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公开(公告)号：US5038737A
公开(公告)日：1991-08-13
申请号：US592094
申请日：1990-10-03
申请人： Ryoji Nishiyama , Satoru Ohkubo , Akira Demizu
发明人： Ryoji Nishiyama , Satoru Ohkubo , Akira Demizu
CPC分类号： F02D35/023 , F02D41/18 , F02D41/32 , F02P5/1455 , Y02T10/46
摘要： A control apparatus for an internal combustion engine calculates a basic fuel injection amount or a basic ignition timing for an engine based on the air intake quantity into the cylinders of the engine. The air intake quantity is calculated based on the pressure within a cylinder of the engine at a prescribed crankshaft angle. The fuel injection amount or the ignition timing is then controlled by feedback control so that a prescribed controlled variable, which is a function of the cylinder internal pressure, attains a target value.
摘要翻译： 用于内燃机的控制装置基于进入发动机的气缸的进气量来计算发动机的基本燃料喷射量或基本点火正时。 基于发动机的气缸内的压力以规定的曲轴角度计算进气量。 然后通过反馈控制来控制燃料喷射量或点火正时，使得作为气缸内部压力的函数的规定的控制变量达到目标值。
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公开(公告)号：US5090383A
公开(公告)日：1992-02-25
申请号：US696804
申请日：1991-05-07
申请人： Akira Demizu , Hitoshi Inoue
发明人： Akira Demizu , Hitoshi Inoue
摘要： An ignition timing control apparatus for an internal combustion engine which comprises: pressure detecting means for detecting a pressure in a cylinder; knocking detecting means based on an output of the pressure detecting means; crank angle detecting means for detecting a crank angle; indicated mean effective pressure calculating means from the output of the pressure detecting means and an output of the crank angle detecting means; indicated mean pressure averaging means; load detecting means; revolution number detecting means from an output of the crank angle detecting means; running condition judging means for judging a running condition from an output of the load detecting means and an output of the revolution number detecting means; control means for controlling an ignition timing so that an average value of the indicated mean effective pressure is maximized, in a predetermined running condition of the engine determined by the running condition judging means; and contorl quantity memorizing means for memorizing an ignition timing control quantity in case when a knocking is not generated, which maximizes the average value of the indicated mean effective pressure outputted from the control means; said control means controlling the ignition timing, in a region in which the knocking is not generated, based on a memorized value of the control quantity memorizing means, when the knocking detecting means detects a knocking.
摘要翻译： 一种用于内燃机的点火正时控制装置，包括：用于检测气缸中的压力的压力检测装置; 基于压力检测装置的输出的爆震检测装置; 用于检测曲柄角的曲柄角检测装置; 从压力检测装置的输出和曲柄角检测装置的输出表示的平均有效压力计算装置; 表示平均压力平均值; 负载检测装置; 来自曲轴转角检测装置的输出的转数检测装置; 运行条件判断装置，用于从负载检测装置的输出和转数检测装置的输出判断运行状态; 控制装置，用于控制点火正时，使得所述平均有效压力的平均值在由行驶状态判断装置确定的发动机的预定行驶状态下最大化; 以及控制量存储装置，用于在没有产生爆震的情况下存储点火正时控制量，这使得从控制装置输出的所指示的平均有效压力的平均值最大化; 所述控制装置在所述爆震检测装置检测到爆震时，基于所述控制量存储装置的存储值，在不产生所述爆震的区域内控制所述点火正时。
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7.发明授权Apparatus for detecting and calculating the indicated mean effective pressure for a multi-cylinder engine during real time 失效用于在实时期间检测和计算多气缸发动机的指示的平均有效压力的装置
公开(公告)号：US5229945A
公开(公告)日：1993-07-20
申请号：US853010
申请日：1992-03-18
申请人： Akira Demizu , Hitoshi Inoue
发明人： Akira Demizu , Hitoshi Inoue
CPC分类号： F02D35/023 , G01L23/08 , G01M15/08 , F02B2075/027 , F02D2041/281 , F02D2250/14
摘要： An apparatus for detecting the in-cylinder pressure of an internal combustion engine having a plurality of cylinders and for providing in-cylinder pressure parameters is described which comprises a plurality of pressure sensors for detecting the pressures in the respective cylinders, a signal selector, a microcomputer and a crank angle sensor. The signal selector sequentially selects the pressure signals from the pressure sensors to be transfer to the computer and the computer computes the pressure parameters in accordance with the received signals for each of the cylinders. The operation of the apparatus is executed by referring to the crank angle signal from the crank angle sensor.
摘要翻译： 一种用于检测具有多个气缸并用于提供缸内压力参数的内燃机的缸内压力的装置被描述，其包括用于检测各气缸中的压力的多个压力传感器，信号选择器， 微型计算机和曲柄角传感器。 信号选择器依次选择要传送到计算机的压力传感器的压力信号，并且计算机根据每个气缸的接收信号来计算压力参数。 参照来自曲柄角传感器的曲柄角信号来执行装置的操作。
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公开(公告)号：US4989565A
公开(公告)日：1991-02-05
申请号：US433298
申请日：1989-11-08
申请人： Setsuhiro Shimomura , Akira Demizu , Hitoshi Inoue
发明人： Setsuhiro Shimomura , Akira Demizu , Hitoshi Inoue
CPC分类号： F02D31/005 , F02D41/083
摘要： A rotational speed controller for an internal combustion engine of a vehicle has an air bypass passage which bypasses the throttle valve of the engine. A solenoid valve controls the air intake rate through the bypass passage. The output current of a generator which is driven by the engine is monitored by a current sensor. Based on the current which is sensed, an air intake adjuster calculates the change in the air intake rate through the bypass passage necessary to compensate for the load exerted on the engine by the generator so as to maintain a constant engine speed. The solenoid valve is controlled to change the air intake rate through the bypass passage by the amount calculated by the air intake adjuster. The change in the air intake rate can be calculated on the basis of the level of the generator current and/or the rate of change of the generator current. When a period sensor detects that the generator current is fluctuating with a prescribed amplitude and period, the air intake adjuster calculates the change in the air intake rate on the basis of the average value of the generator current. At other times, it calculates the change in the air intake rate using the instantaneous value of the generator current.
摘要翻译： 用于车辆内燃机的转速控制器具有绕过发动机的节流阀的空气旁通通道。 电磁阀通过旁路通道控制进气速率。 由发动机驱动的发电机的输出电流由电流传感器监测。 基于感测的电流，进气调节器计算通过旁路通路进行的进气速度的变化，以补偿由发电机施加在发动机上的负荷，从而保持恒定的发动机转速。 电磁阀被控制以通过旁路通道改变通过进气调节器计算的量的进气速率。 可以基于发电机电流的电平和/或发电机电流的变化率来计算进气速率的变化。 当周期传感器检测到发电机电流以规定的振幅和周期波动时，进气调节器基于发电机电流的平均值来计算进气速率的变化。 在其他时间，它使用发电机电流的瞬时值来计算进气速率的变化。
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公开(公告)号：US5101788A
公开(公告)日：1992-04-07
申请号：US687648
申请日：1991-04-19
申请人： Akira Demizu , Hitoshi Inoue
发明人： Akira Demizu , Hitoshi Inoue
CPC分类号： F02D35/023 , F02D37/02 , F02D41/1406 , F02D41/32 , F02P5/1455 , Y02T10/46
摘要： An internal-combustion engine control device includes a pressure sensing device for sensing a cylinder pressure of the internal-combustion engine, a crank angle sensing device for sensing a crank angle, an indicated mean effective pressure computing device for computing the illustrated mean effective pressure from the output of the pressure sensing device and the output of the crank angle sensing device, an indicated device effective pressure averaging means for averaging the output of the indicated mean effective pressure computing device, a load sensing device for sensing a load of the internal-combustion engine, a speed sensing device for sensing an engine speed of the internal-combustion engine from the output of the crank angle sensing device, an operating condition judging device for judging the operating condition of the internal-combustion engine from the output of the load sensing device and the output of the speed sensing device, and a control device for controlling at least one of air-fuel ratio and an ignition timing so that the mean value of an the indicated mean effective pressure will become a maximum value, under a designated operating condition judged by the operating condition judging device. Even when engine components have variations or are subjected to a change with time or a change in environmental conditions, the engine can be operated at all times with optimum air-fuel ration and optimum ignition timing. That is, the control device insures improved output torque, low fuel consumption, improved responsiveness, and operating stability.
摘要翻译： 内燃机控制装置包括用于检测内燃机的气缸压力的压力感测装置，用于感测曲轴转角的曲柄角检测装置，用于计算所示平均有效压力的指示平均有效压力计算装置， 压力感测装置的输出和曲轴转角检测装置的输出，用于平均所示平均有效压力计算装置的输出的指示装置有效压力平均装置，用于感测内燃的负载的负载感测装置 发动机，用于从曲轴转角检测装置的输出感测内燃机的发动机转速的速度检测装置，用于根据负载感测的输出来判断内燃机的运行状况的运行条件判断装置 装置和速度感测装置的输出，以及用于至少控制的控制装置 一个空燃比和点火正时，使得在由操作条件判断装置判断的指定操作条件下，所指示的平均有效压力的平均值将变为最大值。 即使发动机部件具有变化或经历随时间的变化或环境条件的变化，发动机可以随时以最佳的空气燃料比和最佳点火正时进行操作。 也就是说，控制装置确保改进的输出扭矩，低燃料消耗，改进的响应性和操作稳定性。
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公开(公告)号：US5107813A
公开(公告)日：1992-04-28
申请号：US703638
申请日：1991-05-21
申请人： Hitoshi Inoue , Akira Demizu
发明人： Hitoshi Inoue , Akira Demizu
CPC分类号： F02D35/023 , F02D41/008 , F02D41/1406
摘要： A control apparatus of an internal combustion engine which comprises: a pressure detecting means for detecting an inner cylinder pressure of each cylinder of a plurality of cylinders of the internal combustion engine; a crank angle detecting means for detecting a crank angle of the internal combustion engine; indicated mean effective pressure calculating means for calculating an indicated mean effective pressure of each cylinder from an output of the pressure detecting means and an output of the crank angle detecting means; load detecting means for detecting a load of the internal combustion engine; engine speed detecting means for detecting the internal combustion engine speed from an output of the crank angle detecting means; running condition determining means for determining a running condition of the internal combustion engine from an output of the load detecting means and an output of the engine speed detecting means; and averaging and controlling means for controlling at least one of an air-fuel ration and an ignition timing independently for each cylinder, so that an average value of each indicated means effective pressure of the plurality of cylinders is independently maximized, based on an output of the indicated mean effective pressure calculating means, under a predetermined running condition determined by the running condition determining means.
摘要翻译： 一种内燃机的控制装置，包括：用于检测内燃机的多个气缸的每个汽缸的内汽缸压力的压力检测装置; 曲柄角检测装置，用于检测内燃机的曲柄角; 指示平均有效压力计算装置，用于根据压力检测装置的输出和曲轴转角检测装置的输出计算每个气缸的指示的平均有效压力; 负载检测装置，用于检测内燃机的负荷; 发动机速度检测装置，用于从曲柄角检测装置的输出检测内燃机转速; 运行条件确定装置，用于根据负载检测装置的输出和发动机转速检测装置的输出确定内燃机的运行状态; 以及平均和控制装置，用于独立地控制每个气缸的空燃比和点火时间中的至少一个，使得各指示的平均值表示多个气缸的有效压力基于输出 指示平均有效压力计算装置，在由运行条件确定装置确定的预定行驶条件下。
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