公开(公告)号：US08833150B2

公开(公告)日：2014-09-16

申请号：US13687910

申请日：2012-11-28

申请人： Takashi Yui ,  Kota Hayashi ,  Tokiji Ito

发明人： Takashi Yui ,  Kota Hayashi ,  Tokiji Ito

IPC分类号： G01M15/10 ,  G01M15/04

CPC分类号： G01M15/042 ,  Y02T10/40

摘要： A detecting apparatus that detects an abnormality of imbalance of air-fuel ratios among cylinders of a multi-cylinder internal combustion engine, which is equipped with a variable working angle mechanism of an intake valve, the detecting apparatus includes an abnormality detection portion that detects a parameter regarding rotational fluctuations of each of the cylinders and detects whether or not there is an abnormality of imbalance of air-fuel ratios among the cylinders. The abnormality detection portion refrains from determining that the air-fuel ratios are normal when the working angle at the time of detection of the parameter is within a predetermined large working angle range, and determines that the air-fuel ratios are normal when the working angle at the time of detection of the parameter is within a predetermined small working angle range that is on a small working angle side with respect to the large working angle range.

摘要翻译： 一种检测装置，其检测配备有进气门的可变作用角机构的多缸内燃机的气缸之间的空燃比的不平衡的异常的检测装置，所述检测装置包括：异常检测部，其检测 参数关于每个气缸的旋转波动，并且检测气缸之间是否存在空燃比不平衡的异常。 当检测到参数时的工作角度在预定的大的工作角度范围内时，异常检测部分不能确定空燃比是正常的，并且当工作角度 在检测到参数的时候，在相对于大的作业角度范围处于小的加工角度侧的规定的小的工作角度范围内。

公开(公告)号：US20130133401A1

公开(公告)日：2013-05-30

申请号：US13687910

申请日：2012-11-28

申请人： Takashi Yui ,  Kota Hayashi ,  Tokiji Ito

发明人： Takashi Yui ,  Kota Hayashi ,  Tokiji Ito

IPC分类号： G01M15/04

CPC分类号： G01M15/042 ,  Y02T10/40

摘要： A detecting apparatus that detects an abnormality of imbalance of air-fuel ratios among cylinders of a multi-cylinder internal combustion engine, which is equipped with a variable working angle mechanism of an intake valve, the detecting apparatus includes an abnormality detection portion that detects a parameter regarding rotational fluctuations of each of the cylinders and detects whether or not there is an abnormality of imbalance of air-fuel ratios among the cylinders. The abnormality detection portion refrains from determining that the air-fuel ratios are normal when the working angle at the time of detection of the parameter is within a predetermined large working angle range, and determines that the air-fuel ratios are normal when the working angle at the time of detection of the parameter is within a predetermined small working angle range that is on a small working angle side with respect to the large working angle range.

摘要翻译： 一种检测装置，其检测配备有进气门的可变作用角机构的多缸内燃机的气缸之间的空燃比的不平衡的异常的检测装置，所述检测装置包括：异常检测部，其检测 参数关于每个气缸的旋转波动，并且检测气缸之间是否存在空燃比不平衡的异常。 当检测到参数时的工作角度在预定的大的工作角度范围内时，异常检测部分不能确定空燃比是正常的，并且当工作角度 在检测到参数的时候，在相对于大的作业角度范围处于小的加工角度侧的规定的小的工作角度范围内。

公开(公告)号：US20130192548A1

公开(公告)日：2013-08-01

申请号：US13637878

申请日：2011-06-09

申请人： Yoshiyuki Shogenji ,  Tokiji Ito ,  Fumito Takimoto ,  Kota Hayashi

发明人： Yoshiyuki Shogenji ,  Tokiji Ito ,  Fumito Takimoto ,  Kota Hayashi

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L1/20 ,  F01L2800/09 ,  F02D41/0002 ,  F02D41/2461 ,  F02D2041/001 ,  Y02T10/42

摘要： A variable valve timing apparatus for an internal combustion engine, includes an actuator (15) that operates a first variable valve timing mechanism; a detecting portion (35) that detects a driving position of the actuator (15); and a control portion (21) that executes an initialization process only when a preset execution condition is satisfied. In the initialization process, the control portion drives the actuator (15) to one end of a driving range and sets the driving position detected in this state as an initial value, and then drives the actuator (15) to an opposite end of the driving range and reflects an offset amount of the driving position detected in that state with respect to an optimum value in the driving position to compensate for the offset amount. The execution condition includes a condition that an increase amount in acceleration required of the internal combustion engine (1) be equal to or greater than a preset first determining value.

摘要翻译： 一种用于内燃机的可变气门正时装置，包括操作第一可变气门正时机构的致动器（15） 检测所述致动器（15）的驱动位置的检测部（35）; 以及仅当满足预设执行条件时才执行初始化处理的控制部分（21）。 在初始化处理中，控制部将驱动器（15）驱动到驱动范围的一端，将在该状态下检测到的驱动位置设定为初始值，然后将驱动器（15）驱动到驱动的相反端 并且反映在该状态下检测到的驱动位置相对于驱动位置中的最佳值的偏移量，以补偿偏移量。 执行条件包括内燃机（1）所需的加速度增加量等于或大于预设的第一确定值的条件。

公开(公告)号：US20110192364A1

公开(公告)日：2011-08-11

申请号：US13005769

申请日：2011-01-13

申请人： Kota HAYASHI ,  Tokiji Ito ,  Fumito Takimoto

发明人： Kota HAYASHI ,  Tokiji Ito ,  Fumito Takimoto

IPC分类号： F01L1/344

CPC分类号： F02D13/0215 ,  F02D13/0226 ,  Y02T10/18

摘要： A control apparatus of a variable valve system includes a variable valve timing mechanism that performs variable control of the valve timing of an intake valve of an internal combustion engine, a variable operation angle mechanism that performs variable control of the operation angle of the intake valve, and a control unit that performs drive control of the variable valve timing mechanism and the variable operation angle mechanism. The control unit sets an upper guard for the operation angle according to an actual value of the valve timing, and when a target value of the valve timing is a value on the retard side of a specified determining value, the control unit reinforces the upper guard compared with when the target value of the valve timing is not a value on the retard side of the specified determining value.

摘要翻译： 可变阀系统的控制装置包括：可变气门正时机构，其执行对内燃机的进气门的气门正时的可变控制;可变操作角机构，其对进气门的操作角进行可变控制; 以及控制单元，其执行可变气门正时机构和可变操作角机构的驱动控制。 控制单元根据气门正时的实际值设定作用角的上护罩，当气门正时的目标值为指定的确定值的延迟侧的值时，控制单元加强上护罩 与当气门正时的目标值不是指定的确定值的延迟侧的值相比时。

公开(公告)号：US08620562B2

公开(公告)日：2013-12-31

申请号：US13005769

申请日：2011-01-13

申请人： Kota Hayashi ,  Tokiji Ito ,  Fumito Takimoto

发明人： Kota Hayashi ,  Tokiji Ito ,  Fumito Takimoto

IPC分类号： G06F17/00

CPC分类号： F02D13/0215 ,  F02D13/0226 ,  Y02T10/18

摘要： A control apparatus of a variable valve system includes a variable valve timing mechanism that performs variable control of the valve timing of an intake valve of an internal combustion engine, a variable operation angle mechanism that performs variable control of the operation angle of the intake valve, and a control unit that performs drive control of the variable valve timing mechanism and the variable operation angle mechanism. The control unit sets an upper guard for the operation angle according to an actual value of the valve timing, and when a target value of the valve timing is a value on the retard side of a specified determining value, the control unit reinforces the upper guard compared with when the target value of the valve timing is not a value on the retard side of the specified determining value.

摘要翻译： 可变阀系统的控制装置包括：可变气门正时机构，其执行对内燃机的进气门的气门正时的可变控制;可变操作角机构，其对进气门的操作角进行可变控制; 以及控制单元，其执行可变气门正时机构和可变操作角机构的驱动控制。 控制单元根据气门正时的实际值设定作用角的上护罩，当气门正时的目标值为指定的确定值的延迟侧的值时，控制单元加强上护罩 与当气门正时的目标值不是指定的确定值的延迟侧的值相比时。

公开(公告)号：US20060090553A1

公开(公告)日：2006-05-04

申请号：US11264152

申请日：2005-11-02

申请人： Kenji Nagasaki ,  Tokiji Ito ,  Hideki Miyahara

发明人： Kenji Nagasaki ,  Tokiji Ito ,  Hideki Miyahara

IPC分类号： G01M19/00

CPC分类号： F02M25/0818 ,  F02M25/0836 ,  F02M25/0854 ,  F02M25/0872 ,  F02M25/089

摘要： A suction pump introduces negative pressure into a reference-pressure-detecting portion. A driving voltage V of the suction pump is adjusted in such a manner that pressure Pr in the reference-pressure-detecting portion is within a target pressure range. When the pressure Pr is brought into the target pressure range, the driving voltage V of the suction pump is stored as a first driving voltage V1 and the pressure Pr is stored as a reference pressure Pr. When pressure detection and leak detection process are conducted, the suction pump is driven at the first driving voltage V1 to introduce the negative pressure. The computer compares the pressure Pr with a leak determination value to determine whether a leak exists.

摘要翻译： 抽吸泵将负压引入参考压力检测部分。 调节吸入泵的驱动电压V，使基准压力检测部的压力Pr在目标压力范围内。 当压力Pr达到目标压力范围时，抽吸泵的驱动电压V被存储为第一驱动电压V 1，并且压力Pr被存储为参考压力Pr。 当进行压力检测和泄漏检测处理时，抽吸泵以第一驱动电压V 1被驱动以引入负压。 计算机将压力Pr与泄漏确定值进行比较，以确定是否存在泄漏。

公开(公告)号：US6006707A

公开(公告)日：1999-12-28

申请号：US121553

申请日：1998-07-23

申请人： Tokiji Ito

发明人： Tokiji Ito

IPC分类号： F01L1/34 ,  F01L1/344 ,  F01L3/24 ,  F02D13/02 ,  F02D41/00 ,  F02D41/22 ,  F02D45/00

CPC分类号： F02D41/221 ,  F01L1/34406 ,  F02D41/0002 ,  F01L2001/0537 ,  F02D13/0215 ,  F02D13/0234 ,  F02D13/0249 ,  F02D13/0261 ,  F02D2041/001 ,  Y02T10/42

摘要： An apparatus for detecting abnormalities in a valve timing control apparatus comprises a variable valve timing control mechanism that controls a valve timing of an internal combustion engine through a controlled supply of oil via an oil control valve, means for detecting deviation between a target valve timing and an actual valve timing, means for detecting an amount of change of the actual valve timing, means for force-driving the oil control valve and means for judging that an abnormality has occurred in the valve timing control apparatus based on detection, after the oil control valve has been force driven, of an abnormal deviation between the target valve timing and the actual valve timing and an abnormal amount of change of the actual valve timing.

摘要翻译： 用于检测气门正时控制装置的异常的装置包括：可变气门正时控制机构，其通过经由油控制阀的受控制的供油来控制内燃机的气门正时;检测目标气门正时和 实际气门正时，在油控制之后，检测实际气门正时的变化量的装置，用于强制驱动油控制阀的装置，以及基于检测在气门正时控制装置中发生异常的装置 阀已经受力驱动，目标气门正时与实际气门正时之间出现异常偏差，实际气门正时变化量异常。

公开(公告)号：US5771869A

公开(公告)日：1998-06-30

申请号：US872538

申请日：1997-06-10

申请人： Masatomo Yoshihara ,  Tokiji Ito

发明人： Masatomo Yoshihara ,  Tokiji Ito

IPC分类号： F02M25/07

CPC分类号： F02M26/49 ,  F02M26/48 ,  F02M26/57

摘要： A malfunction determining apparatus of an exhaust gas recirculation system performs an accurate determination of malfunctioning of an EGR valve based on an amount of change in the actual degree of opening of the EGR valve. The EGR valve is provided between an exhaust passage and an intake passage of an internal combustion engine of a vehicle. An actual valve opening degree detector detects an actual valve opening degree of the EGR valve. A target valve opening degree calculator calculates a target valve opening degree of the EGR valve. A malfunction determining part calculates an amount of change in the actual valve opening degree when an amount of change in the target valve opening degree is equal to or greater than a predetermined value so as to determine an occurrence of malfunction in the exhaust gas recirculation system based on a comparison between the amount of change in the actual valve opening degree and a second predetermined value.

摘要翻译： 排气再循环系统的故障判定装置基于EGR阀的实际开度的变化量来精确地确定EGR阀的故障。 EGR阀设置在车辆的内燃机的排气通路和进气通路之间。 实际的阀开度检测器检测EGR阀的实际阀开度。 目标阀开度计算器计算EGR阀的目标阀开度。 故障确定部件计算当目标阀门开度的变化量等于或大于预定值时实际阀门开度的变化量，以便基于排气再循环系统中的故障发生确定 在实际阀开度的变化量与第二规定值之间进行比较。

公开(公告)号：US07730860B2

公开(公告)日：2010-06-08

申请号：US12122302

申请日：2008-05-16

申请人： Tokiji Ito

发明人： Tokiji Ito

IPC分类号： F01L1/34

CPC分类号： F02D13/02 ,  F01L1/34 ,  F01L13/0015 ,  F01L2800/00 ,  F01L2800/11 ,  F02D11/107 ,  F02D35/0007 ,  F02D41/0002 ,  F02D41/221 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/42

摘要： An actuator control apparatus includes: an actuator that changes a state amount of an internal combustion engine; a sensor that detects an actual operation position of the actuator; a controller that controls the actuator to bring the actual operation position of the actuator to a target operation position set based on the operation state of the internal combustion engine; and a diagnosis portion that diagnoses the operation state of the actuator to be normal if the deviation between the target operation position and the actual operation position has been small for a predetermined time period and the amount by which the target operation position has changed in the predetermined time period is equal to or larger than a predetermined value. A method for controlling such an actuator control apparatus is also provided.

摘要翻译： 执行器控制装置包括：致动器，其改变内燃机的状态量; 传感器，其检测所述致动器的实际操作位置; 控制器，其控制所述致动器，使所述致动器的实际操作位置为基于所述内燃机的运转状态而设定的目标操作位置; 以及诊断部，其如果目标操作位置和实际操作位置之间的偏差在预定时间段内已经较小并且在预定时间段内目标操作位置已经改变的量，则诊断致动器的操作状态是正常的 时间段等于或大于预定值。 还提供了一种用于控制这种致动器控制装置的方法。

公开(公告)号：US07409929B2

公开(公告)日：2008-08-12

申请号：US11494527

申请日：2006-07-28

申请人： Hideki Miyahara ,  Tokiji Ito

发明人： Hideki Miyahara ,  Tokiji Ito

IPC分类号： F01P7/00 ,  F01P7/14 ,  F01P7/16

CPC分类号： F02B77/082 ,  F01P11/16 ,  F01P2025/42

摘要： A cooling apparatus includes a thermostat that adjusts a feed rate of coolant to a radiator, estimating means that estimates a coolant temperature simulated value at least based on the detection value of an intake-air temperature sensor, and diagnosis means that diagnoses an operating state of the thermostat by comparing the detection value of a coolant temperature sensor, and the coolant temperature simulated value when a diagnosis condition is established. When a ratio of an integrated value of the simulated water temperature variation in an idle state to the integrated value of the simulated water temperature variation in a normal driving state is equal to or greater than an upper limit ratio XP, the diagnosis of the operating state of the thermostat is prohibited.

摘要翻译： 一种冷却装置，包括调节向散热器的冷却剂供给速度的恒温器，至少基于进气温度传感器的检测值来推定冷却剂温度模拟值的估计单元，以及诊断装置， 通过比较冷却剂温度传感器的检测值和建立诊断条件时的冷却剂温度模拟值来控制恒温器。 当在怠速状态下的模拟水温变化的积分值与在正常行驶状态下的模拟水温变化的积分值的比率等于或大于上限比率XP时，操作状态的诊断 的恒温器是禁止的。