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公开(公告)号：US20210207550A1
公开(公告)日：2021-07-08
申请号：US16071421
申请日：2017-01-12
发明人： Yoshihiko AKAGI , Masashi SEIMIYA , Seiji ASANO , Wataru KATOU , Masanori NUKUI , Masahiro SATO
摘要： Provided is a knocking detection apparatus capable of reducing erroneous determination of knocking during transition, and improving knocking detection accuracy regardless of whether an engine is in steady operation or transient operation. A knocking detection apparatus according to the present invention estimates a background level based on an operating state of an internal combustion engine, and calculates a knocking determination index by using the estimated value.
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公开(公告)号：US20180171896A1
公开(公告)日：2018-06-21
申请号：US15737495
申请日：2016-07-28
发明人： Yoichi IIHOSHI , Toshio HORI , Yoshihiko AKAGI , Shinsaku TSUKADA
CPC分类号： F02D41/004 , B60W10/02 , B60W10/06 , B60W30/18072 , B60W2510/0208 , B60W2510/0647 , B60W2520/04 , B60W2540/103 , B60W2710/021 , B60W2710/0622 , B60W2710/065 , B60W2710/0655 , B60W2710/305 , F02D29/02 , F02D29/04 , F02D29/06 , F02D41/0032 , F02D41/022 , F02D41/042 , F02D41/08 , F02D41/12 , F02D41/1454 , F02D41/30 , F02D2200/06 , F02D2200/602 , F02M25/08 , Y02T10/76
摘要： Introduction of a low fuel consumption technique such as downsizing turbos and idling stop decreases an intake pipe negative pressure (pump loss) of an internal combustion engine, and results in difficulty in emitting (evaporative fuel purge) a volatile fuel (volatile fuel) in a fuel tank by the negative pressure of the intake pipe of the internal combustion engine. A control device includes: a purge control unit which controls a purge valve which emits a volatile fuel of a fuel tank or a canister to an intake pipe of an internal combustion engine; and a power transmission control unit which controls a power transmission mechanism between the internal combustion engine and a drive wheel, and, in a state where the power transmission control unit disconnects a clutch, and the vehicle is coasting, the purge control unit opens the evaporative fuel valve and purges an evaporative fuel to the intake pipe.
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公开(公告)号：US20190085784A1
公开(公告)日：2019-03-21
申请号：US16193192
申请日：2018-11-16
CPC分类号： F02D41/222 , F02D11/105 , F02D11/107 , F02D41/1497 , F02D41/22 , F02D41/26 , F02D2200/0406 , F02D2200/0612 , F02D2200/1002 , F02D2200/1004 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02D2250/18 , Y02T10/40
摘要： An onboard control device has a drive manipulated variable detection unit (101) for determining a drive manipulated variable manipulated by a driver to impart a propulsive force to a vehicle, a command value calculation unit (109) for calculating a command value for a drive source of the vehicle based on the drive manipulated variable, a propulsive force control unit (115) for controlling the propulsive force based on the command value, operating state detection units (102, 103) for determining the operating states of the drive source, a drive manipulation rate of change calculation unit (110) for calculating the rate of change in drive manipulation, an operating state rate of change calculation unit (111) for calculating the rate of change in the operating state, and an abnormality detection unit (112) for detecting abnormalities in the drive source based on the rates of change in drive manipulation and the operating state.
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公开(公告)号：US20160215749A1
公开(公告)日：2016-07-28
申请号：US15026003
申请日：2014-10-06
发明人： Shinya MATOHARA , Kengo KUMANO , Yoshihiko AKAGI
CPC分类号： F02P5/145 , F02D35/021 , F02D35/027 , F02D41/22 , F02D41/28 , F02D2041/286 , F02D2041/288 , F02D2200/1002 , F02D2200/101 , F02D2200/1015 , F02P5/152 , F02P17/12 , F02P2017/128 , G01L23/227 , G01M15/05 , G01R19/10 , Y02T10/40
摘要： A control device of an internal combustion engine in a simple configuration capable of finely detecting the combustion state of the internal combustion engine, for example, an occurrence of knocking from an ionic current signal is provided. A control device 20 of an internal combustion engine 100 having an ionic current value detection unit 42 that detects an ionic current value during combustion including an ionic current signal processing unit 20l that performs signal processing of the ionic current value and a detection unit 20m that detects a combustion state of the internal combustion engine 100 based on a processing result by the ionic current signal processing unit 20l, wherein the ionic current signal processing unit 20l includes a differentiating unit 20la that calculates a differential value of the ionic current value is provided.
摘要翻译： 提供了能够精细地检测内燃机的燃烧状态的简单结构的内燃机的控制装置，例如从离子电流信号发生爆震。 具有离子电流值检测单元42的内燃机100的控制装置20，其检测燃烧时的离子电流值，包括进行离子电流值的信号处理的离子电流信号处理单元201和检测离子电流值的检测单元20m 基于离子电流信号处理单元201的处理结果，内燃机100的燃烧状态，其中离子电流信号处理单元201包括计算离子电流值的微分值的微分单元20la。
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公开(公告)号：US20190024600A1
公开(公告)日：2019-01-24
申请号：US16066807
申请日：2016-11-16
发明人： Yoshihiko AKAGI , Seiji ASANO , Kazuhiro ORYOJI
摘要： Fuel injection control of an internal combustion engine requires an optimized fuel amount that can be burned completely with oxygen in intake air to be supplied, but the oxygen concentration in the atmospheric air is affected by humidity.By separately calculating a dry air flow rate that directly affects the oxygen amount and a humidity flow rate that is a change factor of the oxygen concentration in the intake air of the internal combustion engine, the fuel can be supplied to the cylinder of the internal combustion engine at an optimized air-fuel ratio. In addition, highly precise control involving EGR for flowback of a part of the exhaust gas flowing in the exhaust pipe to the intake pipe can also be achieved.
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公开(公告)号：US20170002763A1
公开(公告)日：2017-01-05
申请号：US15114112
申请日：2014-12-08
CPC分类号： F02D41/222 , F02D11/105 , F02D11/107 , F02D41/1497 , F02D41/22 , F02D41/26 , F02D2200/0406 , F02D2200/0612 , F02D2200/1002 , F02D2200/1004 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02D2250/18 , Y02T10/40
摘要： To quickly determine whether or not the propulsive force of a vehicle drive source is abnormal. The onboard control device pertaining to the present invention has a drive manipulated variable detection unit for detecting or estimating a drive manipulated variable manipulated by a driver in order to impart a propulsive force to a vehicle, a command value calculation unit for calculating a command value for a drive source of the vehicle on the basis of the drive manipulated variable, a propulsive force control unit for controlling the propulsive force of the drive source on the basis of the command value, operating state detection units for detecting or estimating the operating states of the drive source, a drive manipulation rate of change calculation unit for calculating the rate of change in drive manipulation, an operating state rate of change calculation unit for calculating the rate of change in the operating state, and an abnormality detection unit for detecting abnormalities in at least the drive source on the basis of the rate of change in drive manipulation and the rate of change in the operating state.
摘要翻译： 快速确定车辆驱动源的推进力是否异常。 本发明的车载控制装置具有：驱动器操作量检测单元，用于检测或估计驾驶员操纵的驾驶操作量，以便向车辆施加推进力;指令值计算单元，用于计算指令值为 基于驱动操作变量的车辆的驱动源;推进力控制单元，用于根据指令值控制驱动源的推进力;操作状态检测单元，用于检测或估计驱动源的运行状态; 驱动源，用于计算驱动操作的变化率的驱动器操纵变化率计算单元，用于计算操作状态的变化率的操作状态变化率计算单元，以及用于检测异常的异常检测单元 根据驱动器操纵的变化率和速率o，驱动源最少 f改变运行状态。
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公开(公告)号：US20210270202A1
公开(公告)日：2021-09-02
申请号：US17257782
申请日：2019-09-06
摘要： Provided is an internal combustion engine control device capable of more appropriately correcting an output value of a flow rate sensor that measures a flow rate of air flowing through an intake flow path of an internal combustion engine, and further reducing an error between a corrected air flow rate and an actual air flow rate as compared to a conventional device. For this purpose, the internal combustion engine control device of the present invention includes an arithmetic device 100 including a fundamental frequency derivation unit 104 that derives a fundamental frequency, a flow rate amplitude calculation unit 107 that extracts a radio frequency of a plurality of frequencies equal to or higher than the fundamental frequency from a pulsation waveform based on the output value of the flow rate sensor as a flow rate radio frequency and calculates an amplitude of the flow rate radio frequency for each frequency, a correction amount derivation unit 108 that derives a correction amount based on the amplitude of the flow rate radio frequency for each frequency, and a flow rate calculation unit 109 that calculates a flow rate of air by using the output value of the flow rate sensor and the correction amount.
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公开(公告)号：US20210270198A1
公开(公告)日：2021-09-02
申请号：US17253860
申请日：2019-08-08
发明人： Yoshihiko AKAGI
摘要： Provided is a signal processing device capable of effectively reducing a work load of a parameter setting operator in response to an increase in parameters constituting complicated filter control. Therefore, in the signal processing device filters an output signal from a sensor mounted on a vehicle, setting is made with respect to a plurality of filters having different filter types or filter coefficients for setting a filter characteristic of a cutoff frequency or a pass band, an individual code is set for each of the plurality of filters, and the signal processing device includes a CPU that selects the individual code based on an engine operating state so that a corresponding filter is selected, and processes an output signal from the sensor using the filter that has been selected.
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公开(公告)号：US20200332759A1
公开(公告)日：2020-10-22
申请号：US16959888
申请日：2019-01-31
发明人： Kazuhiro ORYOJI , Yoshihiko AKAGI
摘要： An internal-combustion-engine control unit and control method are provided that can prevent an excessive ignition-timing retard while occurrences of knocking are suppressed. An internal-combustion-engine control unit that controls an internal-combustion engine, the internal-combustion-engine control unit including: a knock-occurrence-frequency sensing section that senses a knock occurrence-frequency of a cylinder; and a cylinder-wall-temperature computing section that computes a wall temperature of the cylinder on a basis of the knock occurrence-frequency sensed at the knock-occurrence-frequency sensing section.
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公开(公告)号：US20180195487A1
公开(公告)日：2018-07-12
申请号：US15742099
申请日：2016-06-22
发明人： Kazuhiro ORYOJI , Yoshihiko AKAGI
CPC分类号： F02P5/1516 , F02D13/0203 , F02D13/0269 , F02D15/02 , F02D15/04 , F02D35/02 , F02D35/023 , F02D37/02 , F02D41/0007 , F02D41/0062 , F02D43/00 , F02D2200/0418 , F02D2700/03 , F02P5/045 , F02P5/15 , F02P5/1502 , F02P5/1504 , F02P5/152 , Y02T10/46
摘要： It is an object of the present invention to provide a control device for an internal combustion engine capable of appropriately controlling compression ratio and ignition timing before the target compression ratio that is set according to humidity is attained. A control device for an internal combustion engine controls the internal combustion engine including a cylinder, humidity detection means for detecting humidity of outside air supplied to the cylinder, a variable compression ratio mechanism for changing a compression ratio of the cylinder, and an ignition device igniting air-fuel mixture in the cylinder, and the control device includes: a compression ratio control unit controlling the variable compression ratio mechanism; and an ignition control unit controlling ignition timing of the ignition device, wherein corresponding characteristics between compression ratio and ignition timing are determined for each humidity according to a predetermined condition of an operation state of the internal combustion engine, the compression ratio control unit determines a target compression ratio of the variable compression ratio mechanism according to the detected humidity, and while the variable compression ratio mechanism changes a compression ratio to the target compression ratio, the ignition control unit controls the ignition device on the basis of corresponding characteristics determined according to the detected humidity.
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