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公开(公告)号：US20150226642A1
公开(公告)日：2015-08-13
申请号：US14428192
申请日：2013-10-15
CPC分类号： G01M15/11 , F02D35/023 , F02D41/009 , F02D41/123 , F02D41/2451 , G01L23/00 , G01M15/08
摘要： This invention determines whether or not an internal combustion engine is not performing combustion. If the determined result is that the internal combustion engine is not performing combustion, a maximum in-cylinder pressure Pmax during motoring is identified by an in-cylinder pressure sensor, and a crank angle θPmax corresponding to the maximum in-cylinder pressure Pmax is detected by a crank angle sensor. Further, a reference crank angle θPmaxtgt corresponding to the engine speed and the engine load factor is identified, and θPmax is corrected so as to become θPmaxtgt. Furthermore, the relation between a signal of the crank angle sensor and a crank angle (measured value) corresponding to the signal is corrected so that a measured value of the crank angle corresponding to Pmax becomes the post-correction crank angle.
摘要翻译： 本发明确定内燃机是否不进行燃烧。 如果确定的结果是内燃机不进行燃烧，则通过缸内压力传感器识别出电动机中的最大缸内压力Pmax，以及曲轴角度和等于最大缸内压力Pmax的Pmax 由曲柄角传感器检测。 此外，识别与发动机转速和发动机负载系数相对应的参考曲轴角度和最大值，并且校正Pmax以便成为最大值; Pmaxtgt。 此外，曲柄角传感器的信号与对应于该信号的曲柄角（测量值）之间的关系被校正，使得与Pmax对应的曲柄角的测量值成为校正后曲柄角。
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公开(公告)号：US09261431B2
公开(公告)日：2016-02-16
申请号：US14432035
申请日：2013-10-02
CPC分类号： G01M15/02 , F02D35/023 , F02D41/222 , F02D41/28 , F02D2041/281 , G01M15/042 , Y02T10/40
摘要： An engine control apparatus includes a stack detecting unit, a count processing unit, a stack value storage control unit, and an abnormality determination unit. The abnormality determination unit determines that a sensor has a stack abnormality when a count value by the count processing unit becomes equal to or more than an abnormality determination threshold. When maximum value of the detected value of the sensor detected during a determination period is lower than a value stored in a storage unit and a stack state has not been detected by the stack detecting unit during the determination period, the count processing unit does not count up a counter and does not reset the counter.
摘要翻译： 发动机控制装置包括堆检测单元，计数处理单元，堆值存储控制单元和异常判定单元。 当计数处理单元的计数值变为等于或大于异常判定阈值时，异常确定单元确定传感器具有堆叠异常。 当在确定期间期间检测到的传感器的检测值的最大值低于在存储单元中存储的值并且堆栈状态未被堆栈检测单元检测到时，计数处理单元不计数 一个柜台，不重置柜台。
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公开(公告)号：US20150253220A1
公开(公告)日：2015-09-10
申请号：US14432035
申请日：2013-10-02
CPC分类号： G01M15/02 , F02D35/023 , F02D41/222 , F02D41/28 , F02D2041/281 , G01M15/042 , Y02T10/40
摘要： An engine control apparatus includes a stack detecting unit, a count processing unit, a stack value storage control unit, and an abnormality determination unit. The abnormality determination unit determines that a sensor has a stack abnormality when a count value by the count processing unit becomes equal to or more than an abnormality determination threshold. When maximum value of the detected value of the sensor detected during a determination period is lower than a value stored in a storage unit and a stack state has not been detected by the stack detecting unit during the determination period, the count processing unit does not count up a counter and does not reset the counter.
摘要翻译： 发动机控制装置包括堆检测单元，计数处理单元，堆值存储控制单元和异常判定单元。 当计数处理单元的计数值变为等于或大于异常判定阈值时，异常确定单元确定传感器具有堆叠异常。 当在确定期间期间检测到的传感器的检测值的最大值低于在存储单元中存储的值并且堆栈状态未被堆栈检测单元检测到时，计数处理单元不计数 一个柜台，不重置柜台。
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公开(公告)号：US10465624B2
公开(公告)日：2019-11-05
申请号：US15791777
申请日：2017-10-24
发明人： Yusuke Suzuki , Kunihiko Usui , Kazuya Koyama
IPC分类号： F02N11/08 , F02D41/06 , F02D41/00 , F02D41/14 , F02D41/40 , F02P5/04 , F02N99/00 , F02D41/38 , F02N19/00
摘要： When a crankshaft reversely rotates immediately before a stoppage of an engine, the amount of fuel injection in a cylinder in an expansion stroke is controlled to acquire a target air-fuel ratio in accordance with the amount of air in the cylinder. When the electronic control unit determines that the exhaust valve is opened at the time of reverse rotation, the amount of fuel injection is determined by considering a change in the amount of air due to exchange of gas with an exhaust path.
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公开(公告)号：US10663032B2
公开(公告)日：2020-05-26
申请号：US16176218
申请日：2018-10-31
发明人： Takafumi Inagaki , Toshiya Yamashita , Takuya Okada , Atsushi Muto , Masahiro Shirakawa , Yusuke Suzuki
摘要： In a torsional vibration reducing device, a protrusion projecting radially outward of the rotating body is formed on an inner wall surface. The protrusion is formed on a rotation direction side of a rotating body relative to a straight line passing through a rotation center of the rotating body and a center of a rolling element when the rolling element is located in a middle between both end positions to which the rolling element swings within the roller chamber, and while the rolling element is located at an end portion of a roller chamber on the rotation direction side of the rotating body, a gap is equal to or less than a predetermined value between the rolling element and a wall surface of the roller chamber on a straight line passing through a rotation center of the rotating body and a tip of the protrusion.
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公开(公告)号：US10145323B2
公开(公告)日：2018-12-04
申请号：US15843537
申请日：2017-12-15
发明人： Yusuke Suzuki , Kunihiko Usui , Kazuya Koyama
摘要： A starting control device for an engine includes an ECU configured to: i) execute an autonomous starting control in which the ECU injects fuel into the cylinder from a fuel injection valve after a crank shaft rotates reversely before the crank shaft stops its rotation and then ignites an air-fuel mixture using an ignition plug to start the engine without using a starter motor; ii) determine whether a pressure in the cylinder increasing due to the reverse rotation is equal to or greater than a predetermined pressure at a time point of firing of the air-fuel mixture by the ignition; and iii) prohibit starting of the engine under the autonomous starting control when the ECU determines that the pressure in the cylinder is not equal to or greater than the predetermined pressure.
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公开(公告)号：US10050450B2
公开(公告)日：2018-08-14
申请号：US15100083
申请日：2014-12-02
发明人： Yusuke Suzuki
摘要： An electrical storage system includes an electrical storage device, a voltage sensor, a current sensor and a controller. The controller calculates a full charge capacity of the electrical storage device on the basis of a state of charge of the electrical storage device at the time when external charging is started, a state of charge of the electrical storage device at the time when the external charging is completed, and an accumulated value of a current value during the period when the external charging is being carried out, and sets a polarization elimination time. When a stopped time during the period when charging or discharging of the electrical storage device is stopped is longer than the polarization elimination time, the controller regards a voltage value of the electrical storage device at the time of at least one of the start of the external charging or the completion of the external charging as an open circuit voltage of the electrical storage device. The controller calculates a state of charge corresponding to the voltage value as a state of charge that is used to calculate the full charge capacity by using a correlation between the open circuit voltage and the state of charge. The controller shortens the polarization elimination time as a rate of change increases. The rate of change indicates a ratio of a variation in the open circuit voltage to a variation in the state of charge.
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公开(公告)号：US09976534B2
公开(公告)日：2018-05-22
申请号：US15425500
申请日：2017-02-06
发明人： Akio Furuishi , Yusuke Suzuki
CPC分类号： F02P5/153 , F02D35/023 , F02D35/027 , F02D35/028 , F02D41/1498 , F02D41/263 , F02P5/045 , F02P5/152 , Y02T10/46
摘要： A control device includes an electronic control unit. The electronic control unit is configured to calculate an ignitionability index value and a combustion timing index value. The electronic control unit is configured to store relevant information defining a relationship between the ignitionability index value and the combustion timing index value, and a torque fluctuation limit value. The electronic control unit is configured to calculate a distance between a current operating point, which is specified by the ignitionability index value and the combustion timing index value, and a point on the torque fluctuation limit line. The electronic control unit is configured to retard ignition timing when the distance is larger than a threshold value, and enrich an air-fuel ratio and retard the ignition timing when the distance is equal to or smaller than the threshold value.
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公开(公告)号：US09903332B2
公开(公告)日：2018-02-27
申请号：US15070646
申请日：2016-03-15
发明人： Susumu Kojima , Yusuke Suzuki
CPC分类号： F02N11/0814 , F02D35/024 , F02D41/009 , F02D41/042 , F02D2041/0095 , F02D2041/389 , F02D2200/021 , F02D2200/023 , F02N99/006 , F02N2200/021 , F02N2200/023 , Y02T10/48
摘要： The invention relates to a control device of a multi-cylinder internal combustion engine. The control device starts executing an ignition engine start control to restart the engine operation when a predetermined engine restart request is generated, a last signal output from a crank angel sensor corresponds to the compression TDC and a signal is output from the sensor before a time elapsing from the output of the last signal reaches a predetermined time. The control device starts executing a starter engine start control when the engine restart request is generated, the last signal output from the sensor corresponds to the compression TDC and no signal is output from the sensor before a time elapsing from the output of the last signal reaches the predetermined time. The control device sets the predetermined time on the basis of a last engine speed acquired on the basis of the last signal and a signal output from the sensor immediately before the last signal is output such that the predetermined time set when the last engine speed corresponds to a first engine speed, is longer than the predetermined time set when the last engine speed corresponds to a second engine speed larger than the first engine speed.
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公开(公告)号：US09863389B2
公开(公告)日：2018-01-09
申请号：US15066085
申请日：2016-03-10
发明人： Yusuke Suzuki , Susumu Kojima
CPC分类号： F02N11/0825 , F02B23/104 , F02D17/04 , F02N11/0818 , F02N99/004 , F02N99/006 , F02P3/04 , F02P3/0407 , F02P5/1506 , Y02T10/46
摘要： A control unit according to the present invention performs an automatic stop control in which an injection of fuel from a fuel injection valve is stopped to stop a rotation of an engine when an automatic stop condition is satisfied. Furthermore, the control unit performs a first injection, in which fuel is injected from the fuel injection valve of a cylinder in an expansion stroke, and an ignition operation for igniting the fuel injected by the first injection, when a restart demand occurs after an initiation of the automatic stop control. In addition, the control unit performs a second injection, in which fuel is injected from the fuel injection valve of a cylinder in a compression stroke, and an ignition operation for igniting the fuel injected by the second injection. Then, the control unit performs a third injection, in which fuel is injected from the fuel injection valve of a cylinder in a compression stroke, when it judges that a start-up failure for which a crank angle of the cylinder which is in the compression stroke after the second injection cannot get over the compression top dead center occurs or will occur.
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