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1.发明授权
公开(公告)号：US5129379A
公开(公告)日：1992-07-14
申请号：US715572
申请日：1991-06-14
CPC分类号： F02D37/02 , F02D41/1408 , F02P5/045 , F02B1/04 , Y10S706/90
摘要： The present specification discloses a diagnosis system and an optimum control unit for an internal combustion engine. The basic concept of the present invention resides in that a random retrieved signal of which auto correlation function is an impulse shape is superposed on a signal of an internal combustion engine, said superposed signal is used to measure a change of an operation state of the internal combustion engine, and an optimum direction of a control value is detected by a correlation between said measured value and retrieved signal. This method includes the steps of superposing a search signal for fine adjusting a fuel flow quantity value and an ignition timing on a fuel flow quantity signal and an ignition timing signal respectively, applying the fuel flow quantity signal and the ignition timing signal superposed with said search signal respectively to the internal combustion engine, detecting a value of a parameter showing a revolution number or an operation state of the internal combustion engine in response to the superposed signals, detecting a correlation between the detected value and the search signal, and carrying out diagnosis or control of the internal combustion engine based on the detected correlation.
摘要翻译： 本说明书公开了一种用于内燃机的诊断系统和最佳控制单元。 本发明的基本概念在于将自相关函数为脉冲形状的随机取得信号叠加在内燃机的信号上，所述叠加信号用于测量内部的内部运行状态的变化 内燃机，并且通过所述测量值和检索信号之间的相关性来检测控制值的最佳方向。 该方法包括以下步骤：分别叠加用于对燃料流量信号和点火正时信号进行精细调节燃料流量值和点火正时的搜索信号，施加与所述搜索叠加的燃料流量信号和点火定时信号 分别向内燃机发送信号，根据叠加信号检测表示内燃机的转数或运转状态的参数值，检测检测值与检索信号的相关性，进行诊断 或基于检测到的相关性来控制内燃机。
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2.发明授权
公开(公告)号：US5347846A
公开(公告)日：1994-09-20
申请号：US847691
申请日：1992-03-06
申请人： Kouji Kitano , Mitsuo Kayano , Masayoshi Kaneyasu , Kouzou Katougi , Takanobu Ichihara , Nobuo Kurihara
发明人： Kouji Kitano , Mitsuo Kayano , Masayoshi Kaneyasu , Kouzou Katougi , Takanobu Ichihara , Nobuo Kurihara
CPC分类号： G01L23/225
摘要： Knocking detecting in an internal combustion engine uses, a vibration sensor detecting engine vibrations; and insert for taking-in output vibration signals from the vibration sensor in a plurality of intervals in a time sequential manner during every explosion stroke of the internal combustion engine; performing a digital frequency analysis on the taken-in output vibration signals in the respective sequential intervals; setting a main resonance frequency necessary for knocking occurrence judgement based upon the instant operating condition of the internal combustion engine; calculating knocking indexes for the digital frequency-analyzed output vibration signals in the respective sequential intervals based upon the set main resonance frequency component; comparing the largest knocking index calculated with a predetermined threshold value determined by a background vibration level and a slice level thereof to determine occurrence of knocking; and renewing the respective background vibration levels using the calculated knocking indexes when no knocking occurrence is determined. With such an operation a knocking detection with a high S/N ratio and a high sensitivity is achieved.
摘要翻译： 在内燃机中的敲击检测使用振动传感器检测发动机振动; 并且在内燃机的每次爆炸冲程期间以时间顺序的方式插入来自振动传感器的多个间隔的输入振动信号; 对各个顺序区间内的输入输出振动信号进行数字频率分析; 基于内燃机的即时运行状态设定爆震发生判定所需的主共振频率; 基于设定的主共振频率分量计算各个顺序间隔中的数字频率分析输出振动信号的敲击指数; 比较由由背景振动水平确定的预定阈值和其切片水平计算的最大敲击指数，以确定爆震的发生; 并且当没有确定爆震发生时，使用所计算的敲击指数更新各自的背景振动水平。 通过这样的操作，实现了具有高S / N比和高灵敏度的爆震检测。
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3.发明授权
公开(公告)号：US5063901A
公开(公告)日：1991-11-12
申请号：US573789
申请日：1990-08-28
CPC分类号： F02P5/045 , F02D37/02 , F02D41/1408 , F02B1/04 , F02D35/023 , Y10S706/90
摘要： The present specification discloses a diagnosis system and an optimum control unit for an internal combustion engine. The basic concept of the present invention resides in that a random retrieved signal of which auto correlation function is an impulse shape is superposed on a signal of an internal combustion engine, said superposed signal is used to measure a change of an operation state of the internal combustion engine, and an optimum direction of a control value is detected by a correlation between said measured value and retrieved signal. This method includes the steps of superposing a search signal for fine adjusting a fuel flow quantity value and an ignition timing on a fuel flow quantity signal and an ignition timing signal respectively, applying the fuel flow quantity signal and the ignition timing signal superposed with said search signal respectively to the internal combustion engine, detecting a value of a parameter showing a revolution number or an operation state of the internal combustion engine in response to the superposed signals, detecting a correlation between the detected value and the search signal, and carrying out diagnosis or control of the internal combustion engine based on the detected correlation.
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公开(公告)号：US4991553A
公开(公告)日：1991-02-12
申请号：US508657
申请日：1990-04-13
申请人： Nobuo Kurihara , Masayoshi Kaneyasu , Kouji Kitano
发明人： Nobuo Kurihara , Masayoshi Kaneyasu , Kouji Kitano
CPC分类号： F02P5/1523 , G01L23/225 , Y02T10/46
摘要： An engine controller equipped with a device for judging occurrence of knocking of the engine, having a sensor for sampling a vibration based on an internal pressure vibration arisen in a cylinder of the engine and a knocking detecting means for judging the occurrence of the knocking by obtaining at least two frequencies contained in an output from the sensor, obtaining a knocking judgement index from two vibration power factors corresponding to the two frequencies and comparing the knocking judgement index with a threshold value. As being judged from the knocking judgement index, the occurrence of the knocking is accurately detected when the background vibration is great at the time of the high load high speed operation.
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公开(公告)号：US4984545A
公开(公告)日：1991-01-15
申请号：US340474
申请日：1989-04-19
申请人： Masayoshi Kaneyasu , Nobuo Kurihara
发明人： Masayoshi Kaneyasu , Nobuo Kurihara
IPC分类号： F02D41/04 , B60K31/04 , B60W30/00 , F02D29/02 , F02D41/00 , F02D41/14 , F02D41/24 , F02D45/00
CPC分类号： B60K31/047 , F02D41/2451 , B60W2530/16 , B60W2550/142 , F02D2200/501
摘要： A control system for the internal combustion engine is disclosed, in which the operating conditions (such as vehicle speed) and the control conditions (such as throttle opening degree) of the operating elements of the internal combustion engine are used to determine a resistance index (such as an equivalent gradient) for specifying the driving force corresponding to the operating conditions under the prevailing load conditions. Further, this resistance index data is accumulated, so that the operating elements are controlled on the basis of a target operating condition and a corresponding resistance index.
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公开(公告)号：US4955346A
公开(公告)日：1990-09-11
申请号：US360237
申请日：1989-06-01
申请人： Masayoshi Kaneyasu , Nobuo Kurihara
发明人： Masayoshi Kaneyasu , Nobuo Kurihara
CPC分类号： F02D11/105 , F02D2011/102
摘要： A throttle control apparatus of an internal combustion engine comprises an accelerator opening detector, an engine revolution speed detector, a throttle actuator and a control unit constructed so as to generate and output, to the throttle actuator, a throttle driving signal for operating the throttle valve according to a throttle opening pattern determined on the basis of an accelerator opening, an accelerator opening speed and engine revolution speed, the throttle opening pattern includes a first target opening to which throttle valve is opened upon a rapid accelerator operation and which is determined according to an accelerator depression quantity, an accelerator depression speed and an engine revolution speed, a second target opening to which said throttle valve is opened after a predetermined time lapsed from the starting of the rapid accelerator depression and which is determined according to an accelerator depression quantity, an accelerator depression speed and an engine revolution speed.
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公开(公告)号：US5144560A
公开(公告)日：1992-09-01
申请号：US492596
申请日：1990-03-12
CPC分类号： F02P5/151 , F02D37/02 , F02D41/1408 , F02P5/045 , Y02T10/46
摘要： An engine control apparatus for shifting an ignition timing signal to an ignition coil (48) so that the engine produces optimum torque generates a pseudo random signal (26) which is preferably an M series signal and applies the pseudo random signal to a parameter of the engine having a noise frequency component such as the engine rotational speed y(t). The M series signal is a signal having a impulse type self correlation function. A mutual correlation function of the number of revolutions of the internal combustion engine and of the M series signal is computed (30-44) and an optimum ignition advance angle is supplied to an adder (46). The adder (46) combines the optimized signal ignition advance angle with a basic ignition timing signal (.theta..sub.advB) to provide an ignition timing signal (.theta.ig) to the ignition coil (48).
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公开(公告)号：US5429736A
公开(公告)日：1995-07-04
申请号：US339709
申请日：1994-11-14
申请人： Satoshi Shimada , Seiko Suzuki , Shigeki Tsuchitani , Seiichi Ugai , Masayoshi Kaneyasu , Hiroshi Kuroiwa , Yoshihiro Yokota
发明人： Satoshi Shimada , Seiko Suzuki , Shigeki Tsuchitani , Seiichi Ugai , Masayoshi Kaneyasu , Hiroshi Kuroiwa , Yoshihiro Yokota
CPC分类号： G01D5/2417 , G01D18/006 , G01P21/00 , G01P2015/0828
摘要： A detector for detecting a physical quantity as a quantity of electricity has a detection portion, a portion for stimulating the detection portion and a signal processing portion, wherein a calibration signal is supplied from the signal processing portion to the detection portion via the stimulating portion so as to measure a specific response of the detection portion, whereby self-calibration and correction of the characteristic of the detector are performed in accordance with an amount of a change in the response.
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公开(公告)号：US20060069523A1
公开(公告)日：2006-03-30
申请号：US11196298
申请日：2005-08-04
IPC分类号： G06F19/00
CPC分类号： B60T8/1725 , G01P3/489
摘要： A system for directly measuring tire grip conditions is provided which can measure a skidding condition with no need of applying a vibration. A tire rotation speed sensor comprising a detection gear and a magnet sensor is mounted to a rotating shaft of a tire. An output of the tire rotation speed sensor is analyzed in time-frequency domain to detect vibrations caused by slips, thereby determining tire grip conditions, such as a slip ratio and a slip angle. By detecting fluctuations in rotation based on the cause-effect relation between the occurrence of tire slips and the occurrence of fluctuations in rotation, the tire slips can be directly detected. Therefore, the tire grip conditions can be confirmed with high accuracy.
摘要翻译： 提供一种用于直接测量轮胎抓地条件的系统，其可以在不需要施加振动的情况下测量打滑条件。 包括检测齿轮和磁体传感器的轮胎转速传感器安装在轮胎的旋转轴上。 在时频域分析轮胎转速传感器的输出，以检测由滑移引起的振动，从而确定轮滑状态，例如滑移率和滑移角。 通过基于轮胎滑动的发生与旋转发生之间的因果关系来检测旋转的波动，可以直接检测轮胎滑移。 因此，可以高精度地确认轮胎抓地条件。
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10.再颁专利
公开(公告)号：USRE35887E
公开(公告)日：1998-09-08
申请号：US519098
申请日：1995-08-24
申请人： Toshio Ishii , Masayoshi Kaneyasu , Seiji Asano
发明人： Toshio Ishii , Masayoshi Kaneyasu , Seiji Asano
IPC分类号： F01N3/20 , F01N11/00 , F02D41/14 , F02D45/00 , G01N27/406
CPC分类号： G01N27/4065 , F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A conversion efficiency of a catalyst is estimated by a correlation function concerning output signals of upper and down stream side air fuel ratio sensors. The conversion efficiency is measured by comparing the correlation function and a complementary value of the correlation function with a comparing standard value.
摘要翻译： 通过与上下侧空燃比传感器的输出信号有关的相关函数来估计催化剂的转换效率。 通过将相关函数和相关函数的互补值与比较标准值进行比较来测量转换效率。
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