公开(公告)号：US5375462A

公开(公告)日：1994-12-27

申请号：US61712

申请日：1993-05-17

申请人： Shigetaka Kuroda ,  Kazutomo Sawamura ,  Shukoh Terata ,  Masaki Kanehiro ,  Takuji Ishioka ,  Kenichi Maeda

发明人： Shigetaka Kuroda ,  Kazutomo Sawamura ,  Shukoh Terata ,  Masaki Kanehiro ,  Takuji Ishioka ,  Kenichi Maeda

IPC分类号： F02D45/00 ,  G01M15/11 ,  G01M15/00

CPC分类号： G01M15/11

摘要： A misfire detecting system for an internal combustion engine, including an intake pipe internal pressure detecting device for detecting an internal pressure of an intake pipe of the internal combustion engine, and a misfire detection inhibiting device for inhibiting the detection of misfire when the internal pressure of the intake pipe detected by the intake pipe internal pressure detecting device is lower than an intake pipe internal pressure in a no-load condition.

摘要翻译： 一种用于内燃机的失火检测系统，包括用于检测内燃机的进气管的内部压力的进气管内压检测装置和用于在内燃机的内部压力下禁止检测到失火的失火检测禁止装置 由进气管内压检测装置检测到的进气管在空载状态下低于进气管内压。

公开(公告)号：US5415035A

公开(公告)日：1995-05-16

申请号：US118679

申请日：1993-09-10

申请人： Yuichi Shimasaki ,  Kazutomo Sawamura ,  Kenichi Maeda ,  Shigetaka Kuroda

发明人： Yuichi Shimasaki ,  Kazutomo Sawamura ,  Kenichi Maeda ,  Shigetaka Kuroda

IPC分类号： F02D45/00 ,  F02B75/02 ,  G01M15/11 ,  G01M15/00

CPC分类号： G01M15/11 ,  F02B2075/027

摘要： A combustion state-detecting system, for internal combustion engines, has a crank angle sensor. The crank angle sensor generates a crank angle signal with a predetermined period shorter than a firing period of the engine whenever the crankshaft rotates through a predetermined angle. A value of the rotational speed of the engine is detected whenever the crank angle signal is generated. A first average value of the detected engine rotational speed is calculated over a period of one rotation of the crankshaft, followed by calculating a second average value of the first average value over every firing period, to thereby calculate a rate of variation in the second average value over every firing period. The rate of variation is compared with a predetermined value, to determine whether or not the engine is in a degraded state of combustion.

摘要翻译： 用于内燃机的燃烧状态检测系统具有曲柄角传感器。 每当曲轴旋转预定角度时，曲轴转角传感器产生比发动机的燃起时间短的预定时间段的曲轴转角信号。 每当产生曲轴转角信号时，检测发动机转速的值。 在曲轴的一次旋转的周期内计算检测到的发动机转速的第一平均值，然后计算每个点火期间的第一平均值的第二平均值，从而计算第二平均值的变化率 每个发射期间的价值。 将变化率与预定值进行比较，以确定发动机是否处于劣化的燃烧状态。

公开(公告)号：US5373732A

公开(公告)日：1994-12-20

申请号：US149921

申请日：1993-11-10

申请人： Shigetaka Kuroda ,  Kazutomo Sawamura ,  Kenichi Maeda ,  Yuichi Shimasaki

发明人： Shigetaka Kuroda ,  Kazutomo Sawamura ,  Kenichi Maeda ,  Yuichi Shimasaki

IPC分类号： F02D45/00 ,  G01M15/11 ,  G01M15/00

CPC分类号： G01M15/11

摘要： A combustion state-detecting system for an internal combustion engine calculates a first average speed by averaging the rotational speed of the engine over a time period corresponding to duration of one stroke of a cylinder, and a second average speed by averaging the rotational speed of the engine over a time period corresponding to duration of one cycle of all strokes of the cylinder. The system calculates a difference between the first average speed and the second average speed, and determines based on the difference whether or not the combustion state of the engine is abnormal.

摘要翻译： 用于内燃机的燃烧状态检测系统通过在对应于气缸的一个行程的持续时间的时间段内对发动机的转速进行平均来计算第一平均速度，并且通过对发动机的转速进行平均来平均第二平均速度 发动机在对应于气缸的所有冲程的一个循环的持续时间的时间段内。 系统计算第一平均速度和第二平均速度之差，并且基于发动机的燃烧状态是否异常的差来确定。

公开(公告)号：US5390537A

公开(公告)日：1995-02-21

申请号：US149913

申请日：1993-11-10

申请人： Shigetaka Kuroda ,  Kenichi Maeda ,  Kazutomo Sawamura ,  Hiroshi Maruyama

发明人： Shigetaka Kuroda ,  Kenichi Maeda ,  Kazutomo Sawamura ,  Hiroshi Maruyama

IPC分类号： F02D45/00 ,  G01M15/11 ,  G01M15/00

CPC分类号： G01M15/11

摘要： A combustion state-detecting system for internal combustion engines has a crank angle sensor which generates a crank angle signal with a predetermined period shorter than a firing period of the spark plug whenever the crankshaft rotates through a predetermined angle. A value of the rotational speed of the engine is detected whenever the crank angle signal is generated. A rate of variation in the detected value of the rotational speed of the engine is calculated over the firing period of the spark plug, and an average value thereof is then calculated. The calculated average value of the variation rate is compared with the calculated variation rate, and a cumulative value of a difference between the calculated variation rate average value and the calculated variation rate is calculated when the calculated variation rate is on the larger deceleration side of the engine rotational speed with respect to the calculated variation rate average value. The calculated difference cumulative value is compared with a predetermined value to determine whether or not the engine is in a degraded combustion state, based on the comparison result.

摘要翻译： 用于内燃机的燃烧状态检测系统具有曲柄角传感器，每当曲轴旋转预定角度时，其产生比火花塞的燃烧时间短的预定时段的曲柄角信号。 每当产生曲轴转角信号时，检测发动机转速的值。 在火花塞的点火期间计算发动机的转速的检测值的变化率，然后计算其平均值。 将所计算的变化率的平均值与计算出的变化率进行比较，计算出的变化率平均值与计算出的变化率之差的累计值，在计算出的变化率在 发动机转速相对于计算的变化率平均值。 将计算的差分累计值与预定值进行比较，以基于比较结果来确定发动机是否处于劣化燃烧状态。

公开(公告)号：US5396873A

公开(公告)日：1995-03-14

申请号：US168383

申请日：1993-12-17

申请人： Masayoshi Yamanaka ,  Hiroshi Maruyama ,  Masataka Chikamatsu ,  Yasunari Seki ,  Kenichi Maeda ,  Kazutomo Sawamura

发明人： Masayoshi Yamanaka ,  Hiroshi Maruyama ,  Masataka Chikamatsu ,  Yasunari Seki ,  Kenichi Maeda ,  Kazutomo Sawamura

IPC分类号： F02D41/00 ,  F02M25/08 ,  F02M33/02

CPC分类号： F02M25/0809

摘要： An evaporative fuel-processing system includes a first control valve arranged in a charging passage connecting between a fuel tank and a canister for adsorbing evaporative fuel generated from the fuel tank, a second control valve arranged in a purging passage connecting between the canister and an intake passage of the engine, a third control valve arranged in an air inlet port of the canister, and a system internal pressure sensor for detecting pressure within the system. The system is checked for a leak by monitoring a value of the pressure detected by the sensor after the system is negatively pressurized by closing the third control valve and opening the second control valve. The sensor is provided at a location upstream of the first control valve, and the first control valve is closed to detect a value of the pressure or a change thereof. Abnormality determination is carried out based on the detected value of the pressure. Alternatively, all of the above valves are closed in the negatively-pressurized state of the system to detect a first amount of change in the pressure, and then the first control valve alone is opened to detect a second amount of change in the pressure. Abnormality determination can be carried out based on the first and second amounts of change in the pressure, or by comparing a value of the pressure detected when the first and second valves are closed after negative pressurization with a value of the pressure detected after the first control valve is opened.

摘要翻译： 蒸发燃料处理系统包括：第一控制阀，其布置在连接在燃料箱和用于吸附从燃料箱产生的蒸发燃料的罐之间的充电通道中的第二控制阀;布置在连接在罐和进气口之间的清洗通道中的第二控制阀 发动机通过，布置在罐的进气口中的第三控制阀，以及用于检测系统内的压力的系统内部压力传感器。 通过关闭第三控制阀并打开第二控制阀，通过监视系统负压后由传感器检测到的压力值，来检查系统的泄漏。 传感器设置在第一控制阀的上游位置，第一控制阀关闭以检测压力值或其变化。 基于检测到的压力值进行异常判定。 或者，所有上述阀在系统的负压状态下关闭，以检测第一压力变化量，然后单独打开第一控制阀以检测第二压力变化量。 可以基于第一和第二压力变化量进行异常判定，或者通过将在第一和第二控制之后检测到的压力值与负压之后的第一和第二阀关闭时的压力值进行比较 阀打开。

公开(公告)号：US5450834A

公开(公告)日：1995-09-19

申请号：US212572

申请日：1994-03-16

申请人： Masayoshi Yamanaka ,  Kazutomo Sawamura ,  Hiroshi Maruyama ,  Kenichi Maeda

发明人： Masayoshi Yamanaka ,  Kazutomo Sawamura ,  Hiroshi Maruyama ,  Kenichi Maeda

IPC分类号： F02M25/08 ,  F02M33/02

CPC分类号： F02M25/0818 ,  F02M25/0809

摘要： An evaporative fuel-processing system for an internal combustion engine includes an evaporative emission control system having a fuel tank, a canister, a passage extending from the canister to an intake passage of the engine, and a purge control valve arranged across the passage, and a pressurization device for pressurizing the interior of the evaporative emission control system. An ECU actuates the pressurization device to bring the evaporative emission control system into a positively pressurized state, after the purge control valve and an open-to-atmosphere control valve arranged across a passage connected to the canister are closed, and detects an amount of evaporative fuel generated in the fuel tank. The ECU determines whether or not a leakage occurs from the evaporative emission control system, based on a rate of variation in pressure within the evaporative emission control system, and a reference value which is determined based on the amount of evaporative fuel detected.

摘要翻译： 用于内燃机的蒸发燃料处理系统包括具有燃料箱，罐，从罐延伸到发动机的进气通道的通道的蒸发排放控制系统，以及布置在通道上的清洗控制阀，以及 用于对蒸发排放控制系统的内部加压的加压装置。 在清洗控制阀和布置在与罐连接的通道上的开放到大气的控制阀关闭之后，ECU致动加压装置以使蒸发排放控制系统处于正压状态，并且检测蒸发量 在燃料箱中产生的燃料。 ECU基于蒸发排放控制系统内的压力变化率和基于检测到的蒸发燃料量确定的参考值，确定是否从蒸发排放控制系统发生泄漏。

公开(公告)号：US5325664A

公开(公告)日：1994-07-05

申请号：US961794

申请日：1992-10-16

申请人： Yasunari Seki ,  Toshihiko Sato ,  Katuhiro Kumagai ,  Hiroshi Maruyama ,  Yoichi Iwata ,  Tsuyoshi Takizawa ,  Kenichi Maeda ,  Shigetaka Kuroda ,  Masataka Chikamatsu ,  Shukoh Terata ,  Kazutomo Sawamura ,  Hajime Uto ,  Takuya Aoki ,  Makoto Kobayashi

发明人： Yasunari Seki ,  Toshihiko Sato ,  Katuhiro Kumagai ,  Hiroshi Maruyama ,  Yoichi Iwata ,  Tsuyoshi Takizawa ,  Kenichi Maeda ,  Shigetaka Kuroda ,  Masataka Chikamatsu ,  Shukoh Terata ,  Kazutomo Sawamura ,  Hajime Uto ,  Takuya Aoki ,  Makoto Kobayashi

IPC分类号： F01N11/00 ,  F01N13/02 ,  F02F3/26

CPC分类号： F01N11/002 ,  F01N11/007 ,  F01N13/009 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/47

摘要： A catalyst deterioration-determining system determines deterioration of a catalyst arranged in the exhaust passage of an internal combustion engine. An ECU is responsive to an output from an O.sub.2 sensor arranged upstream of the catalyst or outputs from O.sub.2 sensors arranged upstream and downstream of the catalyst for controlling the air-fuel ratio of a mixture supplied to the engine by means of an air-fuel ratio correction value (first air-fuel ratio control). When the engine is in a predetermined operating condition, the system effects changeover from the first air-fuel ratio control to a second air-fuel ratio control which is responsive to the output from the downstream O.sub.2 sensor for controlling the air-fuel ratio of the mixture by means of the air-fuel ratio correction value. After the changeover has been effected, a time period is measured which elapses from the time the second air-fuel ratio control causes a change in the air-fuel ratio correction value from a richer side to a leaner side or vice versa with respect to a stoichiometric air-fuel ratio to the time the output from the downstream O.sub.2 sensor is inverted from the richer side to the leaner side or vice versa with respect to the stoichiometric air-fuel ratio. It is determined that the catalyst is deteriorated, when the measured time period is shorter than the predetermined time period.

摘要翻译： 催化剂劣化确定系统确定布置在内燃机的排气通道中的催化剂的劣化。 ECU响应于设置在催化剂上游的O 2传感器的输出或者从设置在催化剂上游和下游的O2传感器输出，用于通过空燃比控制供给发动机的混合物的空燃比 校正值（第一空燃比控制）。 当发动机处于预定的运行状态时，该系统实现从第一空燃比控制切换到第二空燃比控制，第二空燃比控制响应于来自下游O2传感器的输出，用于控制发动机的空燃比 通过空燃比校正值进行混合。 在切换已经实现之后，测量从第二空燃比控制引起空燃比校正值从更丰富侧到更瘦侧的变化时间经过的时间段，反之亦然 化学计量空燃比与下游O2传感器的输出相对于化学计量空燃比从更丰富的一侧反转到更稀的侧，反之亦然。 当测量的时间段短于预定时间段时，确定催化剂劣化。

公开(公告)号：US09280466B2

公开(公告)日：2016-03-08

申请号：US12555952

申请日：2009-09-09

申请人： Atsushi Kunimatsu ,  Hiroto Nakai ,  Hiroyuki Sakamoto ,  Kenichi Maeda ,  Masaki Miyagawa ,  Hiroshi Nozue ,  Kazuhiro Kawagome

发明人： Atsushi Kunimatsu ,  Hiroto Nakai ,  Hiroyuki Sakamoto ,  Kenichi Maeda ,  Masaki Miyagawa ,  Hiroshi Nozue ,  Kazuhiro Kawagome

IPC分类号： G06F12/08 ,  G06F12/02

CPC分类号： G06F12/0804 ,  G06F12/0246 ,  G06F12/08 ,  G06F12/0888 ,  G06F2212/1036 ,  G06F2212/2022 ,  G06F2212/205 ,  G06F2212/7201

摘要： A device according to an example of the invention comprises a section which accepts a write destination logical address and write target data from a processor, the write destination logical address indicating a write position to write the write target data into a composite memory which includes a first memory and a nonvolatile second memory, a section which determines a write destination physical address corresponding to the write destination logical address so that the number of times of access to the second memory is smaller than the number of times of access to the first memory, a section which stores, in a storage section, address conversion data associating the write destination logical address with the write destination physical address, and a section which writes the write target data into a position in the composite memory indicated by the write destination physical address.

摘要翻译： 根据本发明的示例的设备包括接收来自处理器的写入目的地逻辑地址和写入目标数据的部分，写入目的地逻辑地址指示写入位置以将写入目标数据写入复合存储器，该复合存储器包括第一 存储器和非易失性第二存储器，确定与写入目的地逻辑地址相对应的写目的物理地址的部分，使得对第二存储器的访问次数小于对第一存储器的访问次数， 在存储部中存储将写入目的地逻辑地址与写入目的地物理地址相关联的地址转换数据以及将写入目标数据写入由写入目的地物理地址指示的复合存储器中的位置的部分。

公开(公告)号：US09249712B2

公开(公告)日：2016-02-02

申请号：US13158192

申请日：2011-06-10

申请人： Michinori Tani ,  Kenichi Maeda ,  Atsuhiro Miyauchi ,  Seiji Watanabe ,  Soichiro Goto

发明人： Michinori Tani ,  Kenichi Maeda ,  Atsuhiro Miyauchi ,  Seiji Watanabe ,  Soichiro Goto

IPC分类号： F02B27/04 ,  F01N11/00 ,  F02D41/14 ,  F02D41/24

CPC分类号： F01N11/00 ,  F01N2560/025 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1482 ,  F02D41/149 ,  F02D41/2454 ,  Y02T10/47

摘要： An air-fuel ratio control system for an internal combustion engine, which, at the resumption of air-fuel ratio feedback control, is capable of setting the initial value of an integral term of the feedback control to a value properly learned in preceding feedback control, thereby enabling improvement of control accuracy. To feedback-control the output value of an O2 sensor to a target value, a target air-fuel ratio is calculated. During the feedback control, when it is determined that a predetermined condition in which it is estimated that exhaust gas air-fuel ratio upstream of the catalyst is excellently reflected on an exhaust gas air-fuel ratio at a location midway or downstream of the catalyst is satisfied, an adaptive law input calculated immediately before interruption of the feedback control is updated and stored as the initial value of an integral term for the following execution of the feedback control.

摘要翻译： 一种用于内燃机的空燃比控制系统，其在恢复空燃比反馈控制时能够将反馈控制的积分项的初始值设定为在先前的反馈控制中正确学习的值 从而能够提高控制精度。 为了将O2传感器的输出值反馈到目标值，计算目标空燃比。 在反馈控制期间，当确定在催化剂上游或下游位置处的排气气体排放气体空气燃料比优异地反映催化剂上游的排气空燃比的预定条件是， 满足于在反馈控制中断之前计算的自适应法则输入被更新并存储为用于随后执行反馈控制的积分项的初始值。

公开(公告)号：US20110320106A1

公开(公告)日：2011-12-29

申请号：US13108014

申请日：2011-05-16

申请人： Michinori TANI ,  Atsuhiro Miyauchi ,  Kenichi Maeda ,  Seiji Watanabe ,  Soichiro Goto

发明人： Michinori TANI ,  Atsuhiro Miyauchi ,  Kenichi Maeda ,  Seiji Watanabe ,  Soichiro Goto

IPC分类号： F02D28/00 ,  F02D1/02

CPC分类号： F02D41/1402 ,  F01N3/101 ,  F02D41/1403 ,  F02D41/1441 ,  F02D41/1454 ,  F02D2041/1409 ,  F02D2200/021 ,  Y02T10/22

摘要： An air-fuel ratio control apparatus for an internal-combustion engine includes an air-fuel-ratio sensor, a control-input calculator, an air-fuel-ratio controller, and a gain calculator. The air-fuel-ratio sensor is disposed in an exhaust channel in the internal-combustion engine and is configured to detect an air-fuel ratio in exhaust gas. The control-input calculator is configured to calculate a control input in accordance with an output value of the air-fuel-ratio sensor. The air-fuel-ratio controller is configured to perform a feedback control using the control input such that the output value of the air-fuel-ratio sensor reaches a target value. The gain calculator is configured to calculate a gain in accordance with the output value when the output value is leaner than the target value. The gain is to be used in calculating the control input.

摘要翻译： 用于内燃机的空燃比控制装置包括空燃比传感器，控制输入计算器，空燃比控制器和增益计算器。 所述空燃比传感器配置在所述内燃机的排气通路中，并且能够检测废气中的空燃比。 控制输入​​计算器被配置为根据空燃比传感器的输出值来计算控制输入。 空燃比控制器被配置为使用控制输入执行反馈控制，使得空燃比传感器的输出值达到目标值。 增益计算器被配置为当输出值比目标值更稀的时候根据输出值来计算增益。 增益用于计算控制输入。