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21. 发明授权

US5353764A Electronically controlled fuel supply method and device for internal combustion engine 失效
标题翻译：用于内燃机的电子控制燃料供应方法和装置
公开(公告)号：US5353764A
公开(公告)日：1994-10-11
申请号：US2849
申请日：1993-01-15
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D41/06 , F02D35/02 , F02D41/04 , F02D41/14 , F02D45/00
CPC分类号： F02D35/023 , F02D41/047 , F02D41/1497 , F02D41/1498
摘要： Based on a combustion pressure detected by a cylinder internal pressure sensor, a mean effective pressure Pi is calculated and a fluctuation amount .DELTA.Pi of the mean effective pressure Pi is calculated. The level of a predetermined frequency component of the fluctuation amount .DELTA.Pi is compared with a predetermined level. When the fluctuation amount .DELTA.Pi exceeds the predetermined value, it is judged that an increasing correction coefficient KTW according to a water temperature is smaller than a required value corresponding to a used fuel, and the increasing correction coefficient KTW is increasingly modified. When the above fluctuation amount .DELTA.Pi is less than the predetermined value, it is judged that the increasing correction coefficient KTW is larger than the required value corresponding to the used fuel, and the increasing correction coefficient KTW is decreasingly modified. Therefore, the increasing correction coefficient KTW according to the water temperature is optimized corresponding to the fuel being used.
摘要翻译：基于由气缸内部压力传感器检测到的燃烧压力，计算平均有效压力Pi，并计算平均有效压力Pi的变动量DELTA Pi。将波动量DELTA Pi的预定频率分量的电平与预定电平进行比较。当波动量DELTA Pi超过预定值时，判断根据水温度的增加的校正系数KTW小于与所使用的燃料相对应的所需值，并且增加的校正系数KTW被越来越多地修改。当上述波动量DELTA Pi小于预定值时，判断出增加校正系数KTW大于对应于所用燃料的要求值，并且增加校正系数KTW被逐渐改变。因此，根据水温的增加的校正系数KTW根据所使用的燃料而被优化。

22. 发明授权

US5044196A Method and apparatus for detecting deterioration of a hot-wire type sucked air flow quantity-detecting device for an engine 失效
标题翻译：用于检测用于发动机的热线式吸气流量检测装置的劣化的方法和装置
公开(公告)号：US5044196A
公开(公告)日：1991-09-03
申请号：US540615
申请日：1990-06-20
申请人： Naoki Tomisawa , Hiroshi Okada
发明人： Naoki Tomisawa , Hiroshi Okada
IPC分类号： F02D41/18 , F02D45/00 , G01F1/696 , G01F25/00
CPC分类号： G01F1/696 , F02D41/187 , G01F25/0007
摘要： The present invention relates to a method and apparatus for detecting deterioration of a hot-wire type sucked air flow quantity-detecting device of an engine, in which the change ratio of the output voltage of the hot-wire type sucked air flow quantity-detecting device is measured when the output voltage of the sucked air flow quantity-detecting device is to be changed while the engine is in the substantially non-revolving state, and deterioration is judged by comparing the measured change ratio with a predetermined value, whereby it is possible to exchange parts promptly just in time and prevent degradation of the exhaust gas-purging performance of a vehicle.
摘要翻译：本发明涉及一种用于检测发动机的热线式吸入空气流量检测装置的劣化的方法和装置，其中，热丝式吸入空气流量检测的输出电压的变化率当发动机处于基本上非转动状态时，当要改变吸入空气流量检测装置的输出电压时测量装置，并且通过将测量的变化率与预定值进行比较来判断劣化，从而，可能及时及时地更换部件，并防止车辆排气净化性能的劣化。

23. 发明授权

US5014548A Method and apparatus for detecting deterioration of sucked air flow quantity-detecting device of engine 失效
标题翻译：用于检测发动机的吸气流量检测装置的劣化的方法和装置
公开(公告)号：US5014548A
公开(公告)日：1991-05-14
申请号：US540618
申请日：1990-06-20
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D41/18 , F02D41/24 , F02D45/00 , G01F25/00
CPC分类号： F02D41/2445 , F02D41/182 , F02D41/2474 , F02D41/28 , G01F25/0007
摘要： Disclosed are a method and apparatus for detecting deterioration of a sucked air flow quantity-detecting device of an engine, in which during a predetermined period after the start of use of the engine, detected values of sucked air flow quantities detected by the sucked air flow quantity-detecting device are learned for respective areas of the engine driving state, and then, the detected value of the sucked air flow quantity detected by the air flow quantity-detecting device is compared with the learned value and deterioration of the sucked air flow quantity-detecting device is judged when the difference is larger than a predetermined value.
摘要翻译：公开了一种用于检测发动机的吸入空气流量检测装置的劣化的方法和装置，其中在发动机开始使用之后的预定时间段内，由吸入空气流检测到的吸入空气流量的检测值在发动机驱动状态的各个区域中学习量检测装置，然后将由空气流量检测装置检测的吸入空气流量的检测值与学习值进行比较，并且吸入空气流量的劣化当差值大于预定值时判断检测装置。

24. 发明授权

US4911129A Air/fuel mixture ratio control system in internal combustion engine with _engine operation range dependent _optimum correction coefficient learning feature 失效
标题翻译：内燃机空/燃混合比控制系统，发动机运行范围依赖最佳校正系数学习特征
公开(公告)号：US4911129A
公开(公告)日：1990-03-27
申请号：US171022
申请日：1988-03-18
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D41/00 , F02D41/14 , F02D45/00
CPC分类号： F02D41/2454 , F02D41/2445 , F02D41/1456 , F02D41/248
摘要： An air/fuel ratio control system employs an altitude dependent learnt uniform correction coefficient which is applicable for all engine driving range and another engine driving range based correction coefficient learnt with respect to responsive engine driving range. The uniform correction coefficient is cyclically updated on engine driving range based correction coefficient. The control system performs FEEDBACK mode air/fuel ratio control with the learnt uniform correction coefficient and the engine driving range based correction coefficient. On the other hand, the control system performs OPEN LOOP mode air/fuel ratio control with the learnt uniform correction coefficient.

25. 发明授权

US4817572A Electronically controlled fuel injection device for an internal combustion engine 失效
标题翻译：用于内燃机的电子控制燃料喷射装置
公开(公告)号：US4817572A
公开(公告)日：1989-04-04
申请号：US89788
申请日：1987-08-27
申请人： Shinpei Nakaniwa , Yukio Hoshino , Naoki Tomisawa , Seiichi Otani , Tadashi Ariga , Shouji Furuhashi
发明人： Shinpei Nakaniwa , Yukio Hoshino , Naoki Tomisawa , Seiichi Otani , Tadashi Ariga , Shouji Furuhashi
IPC分类号： F02D41/04 , F02D41/10 , F02D41/18 , F02D41/34
CPC分类号： F02D41/10 , F02D41/045 , F02D41/182
摘要： An electronically controlled fuel injection device for an internal combustion engine during engine acceleration determines a basic amount of injected fuel based on the amount of intake airflow detected by an airflow meter and the engine velocity until the portion filled into the intake air manifold is detected, and then a basic amount of injected fuel based on the data of intake airflow which has been recorded excluding the portion filled into the intake air manifold.
摘要翻译：在发动机加速期间用于内燃机的电子控制燃料喷射装置基于由气流计检测到的进气气流量和发动机速度确定喷射燃料的基本量，直到检测到填充到进气歧管中的部分，以及然后基于除了填充到进气歧管中的部分之外已经记录的进气气流的数据的基本喷射燃料量。

26. 发明授权

US4655188A Apparatus for learning control of air-fuel ratio of air-fuel mixture in electronically controlled fuel injection type internal combustion engine 失效
标题翻译：用于学习电控燃油喷射型内燃机空气燃料混合物空燃比控制的装置
公开(公告)号：US4655188A
公开(公告)日：1987-04-07
申请号：US768480
申请日：1985-08-08
申请人： Naoki Tomisawa , Shoji Furuhashi , Seiichi Otani
发明人： Naoki Tomisawa , Shoji Furuhashi , Seiichi Otani
IPC分类号： F02B1/04 , F02D41/14 , F02M51/00
CPC分类号： F02D41/2454 , F02D41/2416 , F02B1/04
摘要： In controlling the air-fuel ratio in an air-fuel mixture in an internal combustion engine, a pulse duty signal Tp corresponding to the basic fuel injection quantity is operated at least from the intake air flow quantity Q and the rotation speed N of the engine, a signal of a fuel injection quantity Ti corrected by adding an appropriate correction value to said Tp is applied to a pulse-controlled fuel injection apparatus. Feedback control is carried out so that the actually detected air-fuel ratio is made to follow the aimed air-fuel ratio, and the learning correction coefficient .alpha.o is operated by learning so that the correction coefficient for this feedback control is as small as possible and the operated value is given as a correction value to Tp. Since the reliability of .alpha.o is low in a driving state area where learning is not advanced, .alpha.o of the area where learning is not advanced is estimated from .alpha.o of areas where learning is advanced, whereby control of the air-fuel ratio in the transition stage between different areas is smoothened.
摘要翻译： PCT No.PCT / JP85 / 00024 Sec。 371日期1985年8月8日第 102（e）1985年8月8日PCT PCT 1月23日，PCT PCT。第WO85 / 03329号公报 1985年9月日。在控制内燃机的空气燃料混合物中的空燃比时，至少根据进气量Q和运转基准燃料喷射量的脉冲占空比信号Tp 发动机的转速N，通过向所述Tp加上适当的校正值而校正的燃料喷射量Ti的信号被施加到脉冲控制的燃料喷射装置。进行反馈控制，使实际检测到的空燃比达到目标空燃比，通过学习来操作学习校正系数α0，使得该反馈控制的校正系数尽可能小并将操作值作为校正值给出。由于在不进行学习的驾驶状态区域中α0的可靠性低，因此从学习进行的区域的α0估计未学习的区域的αo，从而可以控制空燃比不同地区之间的过渡阶段平滑。

27. 发明授权

US06550305B2 Activation diagnosis method and activation diagnosis apparatus for air-fuel ratio sensor 失效
公开(公告)号：US06550305B2
公开(公告)日：2003-04-22
申请号：US10241480
申请日：2002-09-12
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： G01N27419
CPC分类号： G01N27/4175 , F02D41/1456 , F02D41/1494
摘要： Before starting an air-fuel ratio feedback control utilizing an air-fuel ratio sensor, activation of a wide-range air-fuel ratio sensor in an internal combustion engine is diagnosed by calculating heat transferred to and from the air-fuel ratio sensor, the output value of the wide-range air-fuel ratio sensor varies in response to oxygen concentration in exhaust which varies according to the air-fuel ratio of an intake air-fuel mixture of the internal combustion engine. The activation time from the starting of the engine until the air-fuel ratio sensor is activated is estimate based on the calculated result of the heat transfer. Alternatively, activation of the sensor is diagnosed under the condition that an output voltage of the oxygen concentration detecting unit of the sensor is fixed to a value either equal to or above a rich-side set voltage or equal to or under a lean-side set voltage, before starting the air-fuel ratio feedback control.

28. 发明授权

US06453720B1 Activation diagnosis method and activation diagnosis apparatus for air-fuel ratio sensor 失效
标题翻译：空燃比传感器的激活诊断方法和激活诊断装置
公开(公告)号：US06453720B1
公开(公告)日：2002-09-24
申请号：US09452127
申请日：1999-12-01
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D4106
CPC分类号： G01N27/4175 , F02D41/1456 , F02D41/1494
摘要： Before starting an air-fuel ratio feedback control utilizing an air-fuel ratio sensor, activation of a wide-range air-fuel ratio sensor in an internal combustion engine is diagnosed by calculating heat transferred to and from the air-fuel ratio sensor, the output value of the wide-range air-fuel ratio sensor varies in response to oxygen concentration in exhaust which varies according to the air-fuel ratio of an intake air-fuel mixture of the internal combustion engine. The activation time from the starting of the engine until the air-fuel ratio sensor is activated is estimate based on the calculated result of the heat transfer. Alternatively, activation of the sensor is diagnosed under the condition that an output voltage of the oxygen concentration detecting unit of the sensor is fixed to a value either equal to or above a rich-side set voltage or equal to or under a lean-side set voltage, before starting the air-fuel ratio feedback control.
摘要翻译：在利用空燃比传感器开始空燃比反馈控制之前，通过计算从空燃比传感器传递的热量来诊断内燃机中的大范围空燃比传感器的启动，大范围空燃比传感器的输出值响应于根据内燃机的吸入空气 - 燃料混合物的空燃比而变化的排气中的氧浓度而变化。从发动机起动直到空燃比传感器启动的启动时间是根据计算出的传热结果来估计的。或者，在传感器的氧浓度检测单元的输出电压固定为等于或高于富侧设定电压或等于或低于稀侧设定值的条件下，诊断传感器的激活电压，开始空燃比反馈控制。

29. 发明授权

US5670715A Method of diagnosing a mechanism for improving combustion in an internal combustion engine and apparatus therefor 失效
标题翻译：诊断用于改善内燃机燃烧的机构的方法及其装置
公开(公告)号：US5670715A
公开(公告)日：1997-09-23
申请号：US684361
申请日：1996-07-19
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： G01M15/04 , F02B31/00 , F02B31/02 , F02B77/08 , F02D41/00 , F02D41/14 , F02D41/22 , F02D45/00 , F02D41/34 , F02M29/06 , G01M15/00
CPC分类号： F02D41/0002 , F02B31/00 , F02D41/221 , F02D2041/0015 , Y02T10/146 , Y02T10/42
摘要： In an internal combustion engine equipped with a mechanism for improving combustion such as a swirl control valve, the air-to-fuel ratio of the combustion mixture gas is increased until the stability of the engine reaches an allowable limit under the condition where the combustibility is to be improved by the mechanism for improving combustion. When the air-to-fuel rate at the allowable limit is equal to or smaller than a reference air-to-fuel ratio, whether or not the mechanism for improving combustion is defective is diagnosed.
摘要翻译：在配备有用于改善涡流控制阀等燃烧机构的内燃机中，燃烧混合气体的空燃比增加，直到发动机的稳定性在可燃性为通过改善燃烧的机理来改进。当允许极限的空气燃料比等于或小于参考空燃比时，诊断燃烧改善机理是否有缺陷。

30. 发明授权

US5634451A Apparatus and method for treating fuel vapor of an engine 失效
标题翻译：用于处理发动机的燃料蒸气的装置和方法
公开(公告)号：US5634451A
公开(公告)日：1997-06-03
申请号：US454182
申请日：1995-06-15
申请人： Naoki Tomisawa
发明人： Naoki Tomisawa
IPC分类号： F02D41/00 , F02M25/08 , F02M37/04
CPC分类号： F02D41/004 , F02M25/08
摘要： A fuel vapor treatment apparatus controls fuel vapor produced in a fuel tank supplied to an engine intake system to prevent dispersion into the atmosphere. It involves adjusting a purge air quantity to a high accuracy, to thereby avoid the occurrence of air-fuel ratio fluctuations between cylinders due to the purge air. More specifically, with a construction wherein the purge air quantity is adjusted by duty controlling the opening/closing of a purge passage, the purge air quantity is set based on the engine load and engine rotational speed, and the control frequency used in the duty control is increasingly changed corresponding to an increase in purge air quantity. Moreover, the opening/closing of the purge passage is duty controlled based on the purge air quantity and the control frequency.
摘要翻译： PCT No.PCT / JP94 / 01959 Sec。 371日期：1995年6月15日 102（e）日期1995年6月15日PCT 1994年11月18日PCT PCT。出版物WO95 / 14165 日期1995年5月26日燃料蒸气处理装置控制供给到发动机进气系统的燃料箱中产生的燃料蒸气，以防止分散到大气中。它涉及到高精度地调节吹扫空气量，从而避免由于吹扫空气引起气缸之间的空燃比波动的发生。更具体地说，通过利用负责控制吹扫通道的打开/关闭来调节吹扫空气量的结构，基于发动机负荷和发动机转速以及占空比控制中使用的控制频率设定吹扫空气量对应于吹扫空气量的增加而变化越来越大。此外，基于吹扫空气量和控制频率对清洗通道的打开/关闭进行占空比控制。

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