公开(公告)号：US6104195A

公开(公告)日：2000-08-15

申请号：US832201

申请日：1997-04-08

申请人： Tohru Yoshinaga ,  Tokio Kohama ,  Hiroshi Yorita ,  Yasuyuki Satou ,  Masao Kano ,  Toshiaki Yamaura

发明人： Tohru Yoshinaga ,  Tokio Kohama ,  Hiroshi Yorita ,  Yasuyuki Satou ,  Masao Kano ,  Toshiaki Yamaura

IPC分类号： F02P17/12 ,  G01N27/62 ,  G01N27/68

CPC分类号： G01N27/62 ,  G01N27/68

摘要： An apparatus for detecting a condition of burning in an internal combustion engine includes a pair of opposed electrodes provided in a combustion chamber of the engine, and an AC voltage applying device for applying an AC voltage between the opposed electrodes. A current detecting device is operative for detecting a current flowing between the opposed electrodes. A current generating means for generating a current-representing signal depending on the detected current, the current generating means having a differentiating circuit for differentiating the AC voltage into the capacitance-current representing signal. In another aspect of this invention, the apparatus further comprises calculating means for calculating ratios between a parameter represented by the burning-ion current representing signal and a parameter represented by a signal depending on the AC voltage applied between the opposed electrodes. A waveform processing device is operative for removing the capacitive current component from the current-representing signal to extract a burning ion current component, and for generating a burning-ion-current representing signal depending on the extracted burning ion current component. The capacitive current component occurs in correspondence with the AC voltage. One aspect of the invention utilizes calculating means for calculating a ratio between a parameter represented by the burning-ion-current representing signal and a parameter represented by a signal depending on the AC voltage applied between opposed electrodes. The burning ion current component corresponds to a burning ion current which flows between the opposed electrodes. A burning condition detecting device is operative for detecting a condition of burning in the combustion chamber of the engine on the basis of the burning-ion-current representing signal generated by the waveform processing device. The waveform processing device includes an integration processing device for integrating the current-representing signal to generate the burning-ion-current representing signal.

公开(公告)号：US06026781A

公开(公告)日：2000-02-22

申请号：US166588

申请日：1998-10-06

申请人： Nobuo Imatake ,  Shingo Morishima ,  Kimitaka Saito ,  Tokio Kohama ,  Tatsuo Kobayashi

发明人： Nobuo Imatake ,  Shingo Morishima ,  Kimitaka Saito ,  Tokio Kohama ,  Tatsuo Kobayashi

IPC分类号： F02D29/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/10 ,  F02D41/30 ,  F02D41/34 ,  F02D41/40 ,  F16H63/50 ,  F02B17/00

CPC分类号： F02D41/402 ,  B60W10/06 ,  B60W10/10 ,  B60W30/188 ,  F02D41/107 ,  F02D41/3076 ,  B60W2510/0638 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2550/142 ,  B60W2550/402 ,  B60W2710/0616 ,  B60W2710/1005 ,  F02D2041/389 ,  F02D2200/702 ,  F02D2250/18 ,  F02D41/023 ,  F02D41/3029 ,  F16H63/50 ,  Y02T10/44

摘要： A fuel injection control device in a cylinder direct injection engine which switches between premixed combustion by intake stroke injection and stratified combustion by compression stroke injection in accordance with a change of an engine speed or a required load, where an unpleasant torque shock occurring when the injection mode is changed and the combustion state is changed despite the vehicle operating in the driving pattern such as driving on an upward slope or downward slope is prevented by maintaining the same injection mode while the vehicle continues to operate in the same driving state and where stratified combustion by the compression stroke injection is carried out when the vehicle is in driving on a downward slope, but is augmented by intake stroke injection when the vehicle sharply accelerates and the torque becomes insufficient.

摘要翻译： 一种气缸直喷式发动机中的燃料喷射控制装置，其根据发动机转速或所需负荷的变化，通过进气冲程喷射和压缩冲程喷射进行分层燃烧之间进行切换，其中当喷射时发生不愉快的扭矩冲击 模式改变，并且尽管在车辆在相同的驾驶状态下继续操作并且分层燃烧时，通过保持相同的喷射模式来防止车辆在驾驶模式下操作，诸如在向上的斜面上的驾驶或向下的斜坡被阻止 当车辆在向下倾斜的行驶中进行压缩冲程喷射时，当车辆急剧加速并且扭矩变得不足时，通过进气冲程喷射增加压缩行程喷射。

公开(公告)号：US6020742A

公开(公告)日：2000-02-01

申请号：US798149

申请日：1997-02-10

申请人： Masao Kano ,  Tokio Kohama ,  Tohru Yoshinaga ,  Hiroshi Yorita ,  Yasuyuki Satou

发明人： Masao Kano ,  Tokio Kohama ,  Tohru Yoshinaga ,  Hiroshi Yorita ,  Yasuyuki Satou

IPC分类号： G01M15/04 ,  F02P17/12 ,  G01L23/22 ,  G01M15/00

CPC分类号： F02P17/12 ,  F02D35/027 ,  G01L23/225 ,  F02P2017/125

摘要： A combustion monitoring apparatus for an internal combustion engine is provided which includes a voltage supply circuit, a combustion monitoring circuit, and a control circuit. The voltage supply circuit applies the voltage to plug electrodes of a spark plug mounted in a combustion chamber of the engine. The combustion ion monitoring circuit monitors a variation in amount of combustion ions existing between the plug electrodes to determine a combustion condition of the engine based on the current flowing through the plug electrodes produced by application of the voltage to the electrodes. The control circuit controls an operation of the voltage supply circuit so that the voltage is applied across the plug electrodes prior to a discharge duration of a spark plug mounted in the combustion chamber of the engine for monitoring preignition.

摘要翻译： 提供一种用于内燃机的燃烧监测装置，其包括电压供应电路，燃烧监测电路和控制电路。 电压供给电路对安装在发动机的燃烧室内的火花塞的插头电极施加电压。 燃烧离子监视电路监测存在于插头电极之间的燃烧离子量的变化，以基于流过通过向电极施加电压而产生的插塞电极的电流来确定发动机的燃烧状态。 控制电路控制电压供应电路的操作，使得在安装在发动机的燃烧室中的火花塞的放电持续时间之前，在插头电极之间施加电压，用于监视预启动。

公开(公告)号：US5749330A

公开(公告)日：1998-05-12

申请号：US607349

申请日：1996-02-26

申请人： Yoshimitsu Inque ,  Yasutoshi Yamanaka ,  Ryuichi Matsushiro, deceased ,  Hikaru Sugi ,  Takayuki Hayashi ,  Tatsuo Sugimoto ,  Koichi Ito ,  Hiroyuki Fukunaga ,  Tokio Kohama ,  Toshihiko Igashira

发明人： Yoshimitsu Inque ,  Yasutoshi Yamanaka ,  Ryuichi Matsushiro, deceased ,  Hikaru Sugi ,  Takayuki Hayashi ,  Tatsuo Sugimoto ,  Koichi Ito ,  Hiroyuki Fukunaga ,  Tokio Kohama ,  Toshihiko Igashira

IPC分类号： B60H1/00 ,  F01P7/14 ,  F01P7/16 ,  F01P11/20 ,  F28D20/00

CPC分类号： B60H1/00492 ,  F01P11/20 ,  F28D20/0034 ,  F01P2007/146 ,  F01P2011/205 ,  F01P2025/62 ,  F01P2025/70 ,  F01P2060/08 ,  F01P2070/06 ,  F01P7/16 ,  Y02E60/142

摘要： By using a small heat accumulator installed in a cooling water system, malfunction of exhaust emission during warming up is prevented. Such a cooling system includes a cooling water passage for returning cooling water flowing from a cooling water outlet of an automotive engine to a cooling water inlet through a radiator, a first bypass passage for returning the cooling water just after flowing from the cooling water outlet to the cooling water inlet through the radiator, a second bypass passage for returning the cooling water just after flowing out from the cooling water outlet of the engine to the cooling water inlet through the radiator by supplying the cooling water near a heat-sensing portion of a thermostat, a flowing amount adjusting valve for enlarging a cooling water flowing ratio to the first bypass passage with respect to the second bypass passage corresponding to a reduction of a load of the engine and the heat accumulator installed through the first bypass passage.

摘要翻译： 通过使用安装在冷却水系统中的小型蓄热器，可以防止在预热期间排气的故障。 这样的冷却系统包括：冷却水通道，用于将从汽车发动机的冷却水出口流出的冷却水返回到通过散热器的冷却水入口;第一旁通通道，用于使冷却水刚刚从冷却水出口流出后返回到 通过散热器的冷却水入口，第二旁路通道，用于使冷却水刚好从发动机的冷却水出口流出到通过散热器的冷却水入口之后，将冷却水通过散热器的热传感部分 恒温器，用于相应于通过第一旁路通道安装的发动机和蓄热器的负载减小而相对于第二旁路通道扩大与第一旁通通道的冷却水流量比的流量调节阀。

公开(公告)号：US4532798A

公开(公告)日：1985-08-06

申请号：US615910

申请日：1984-05-31

申请人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

发明人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

IPC分类号： G01M15/04 ,  G01M15/08 ,  G01M15/00

CPC分类号： G01M15/046 ,  G01M15/08 ,  F02D2200/1015

摘要： In a method for measuring variations in the output of an internal combustion engine, at least one of signals respectively representing an engine speed, torque, and internal cylinder pressure of the internal combustion engine during the firing strokes of the engine is obtained. A periodical and pulsating change in the obtained signal is detected. A differential value at a portion of the change of the signal having a maximum gradient is then detected. Another method provides measuring variations in the output of the internal combustion engine by calculating the difference between the maximum and minimum values of the change of the obtained signal. Still another method provides measuring variations in the output of the internal combustion engine by correcting the obtained value in accordance with the engine speed. Still another method provides measuring variations in the output of the internal combustion engine by calculating the difference between consecutive changes.

摘要翻译： 在一种用于测量内燃机的输出变化的方法中，获得分别代表发动机的点火行程期间内燃机的发动机转速，转矩和内汽缸压力的信号中的至少一个。 检测到所获得的信号中的周期性和脉动变化。 然后检测具有最大梯度的信号的变化的一部分的差分值。 另一种方法通过计算获得的信号的变化的最大值和最小值之间的差异来提供内燃机输出的测量变化。 另一种方法通过根据发动机转速校正获得的值来提供内燃机的输出的测量变化。 另一种方法通过计算连续变化之间的差异来提供内燃机输出的测量变化。

公开(公告)号：US4513628A

公开(公告)日：1985-04-30

申请号：US501762

申请日：1983-06-06

申请人： Tokio Kohama ,  Hideki Obayashi ,  Toshikazu Ina ,  Seiichi Narita

发明人： Tokio Kohama ,  Hideki Obayashi ,  Toshikazu Ina ,  Seiichi Narita

IPC分类号： F02D35/00 ,  F02D45/00 ,  G01L3/10 ,  G01L3/14

CPC分类号： G01L3/109 ,  G01L3/1435 ,  F16H59/16

摘要： A torque detector, for detecting a torque applied to a torque transmission shaft which is connected to a load such as a wheel of an automobile, comprises a first rotating member which is integrally connected to a driving shaft of an engine, a second rotating member which is integrally connected to a load so as to be opposed to the first rotating member, a plurality of elastic members for connecting the opposed surfaces of the first and second rotating members, an angular phase difference detecting circuit for detecting the angular phase difference between the first and second rotating members, a no load condition detecting circuit for detecting a no load condition of the engine, and a data processor for calculating torque from the angular phase difference between the first and second rotating members under the load condition and under the no load condition. An accurate value of applied torque is detected by subtracting the angular phase difference under the no load condition from the load condition.

摘要翻译： 用于检测施加到与诸如汽车的车轮的负载连接的扭矩传递轴的扭矩的扭矩检测器包括与发动机的驱动轴一体连接的第一旋转构件，第二旋转构件， 一体地连接到负载以与第一旋转构件相对的多个弹性构件，用于连接第一和第二旋转构件的相对表面的角度相位差检测电路，用于检测第一和第二旋转构件之间的角度相位差 以及第二旋转构件，用于检测发动机的空载条件的空载状态检测电路，以及用于在负载条件下和无负载条件下从第一和第二旋转构件之间的角度相位差计算转矩的数据处理器 。 通过从负载状态减去空载条件下的角度相位差来检测施加转矩的精确值。

公开(公告)号：US4503713A

公开(公告)日：1985-03-12

申请号：US486832

申请日：1983-04-20

申请人： Hideki Obayashi ,  Tokio Kohama ,  Kimitaka Saito ,  Hisasi Kawai ,  Toshikazu Ina

发明人： Hideki Obayashi ,  Tokio Kohama ,  Kimitaka Saito ,  Hisasi Kawai ,  Toshikazu Ina

IPC分类号： G01L3/10 ,  G01L3/14 ,  G01L3/02

CPC分类号： G01L3/1407 ,  G01L3/109

摘要： A torque detector, particularly a torque detector for detecting a torque applied to a torque transmission shaft which is connected to a load such as a wheel of an automobile, comprises a first shaft connected to a driving shaft, a second shaft connected to a torque transmission shaft, and a plurality of elastic members, each of which is interposed between the first shaft and the second shaft for transmitting the torque of the first shaft to the second shaft while receiving the compression force between the first shaft and the second shaft when the driving shaft is driven. The first shaft comprises a flange portion wherein a plurality of long grooves are formed so as to extend in the rotating direction thereof. The second shaft comprises a flange portion wherein a plurality of long holes are formed so as to extend in the rotating direction thereof and penetrate therethrough at such positions as to be substantially opposed to said long grooves. Each of the elastic members is accommodated within each of the long holes. The projecting side portion of each of the elastic members is accommodated within each of the long grooves. The long holes are grouped into two kinds of long holes having different lengths in the rotating direction of the second shaft. One kind of long holes have a length equal to that of the long groove of the first shaft while the other kind of long holes have a length longer than that of one kind of long holes by a predetermined angular distance. Until the applied torque reaches a predetermined value, the first shaft is connected to the second shaft only through one kind of elastic members to decrease the total spring constant thereof and when the applied torque exceeds the predetermined value, the first shaft is connected to the second shaft through all of the elastic members to increase the total spring constant thereof. The torque detector further comprises a data processor by which the angular phase difference between the first shaft and the second shaft, which occurs due to the compression of the elastic members is detected and torque is calculated from the detected angular phase difference.

公开(公告)号：US4425792A

公开(公告)日：1984-01-17

申请号：US376133

申请日：1982-05-07

申请人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Tsuneyuki Egami

发明人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Tsuneyuki Egami

IPC分类号： G01F1/69 ,  G01F1/68

CPC分类号： G01F1/69

摘要： In a fluid flow rate measuring apparatus having a sensor including an electric heater resistance wire and first and second temperature dependent resistance wires and a measuring circuit, each of the resistance wires is wound to be held firmly in place on a supporting member made of an electrical insulating material, and the electric heater resistance wire and the first temperature dependent resistance wire, which is responsive to the temperature of the fluid under measurement heated by the electric heater resistance wire, are wound on the same supporting member alternately and close to each other so that the winding direction thereof makes an angle from 60.degree. to 120.degree. to the direction of the flow of the fluid under measurement. Further, each of the supporting members is constructed and arranged so as to minimize the influence of the heat capacity thereof and also to avoid the occurrence of turbulence in the flow of the fluid which is detrimental to the flow rate measurement. This construction can provide a fluid flow rate measuring apparatus having high precision, improved response and elevated reliability.

摘要翻译： 在具有包括电加热器电阻丝和第一和第二温度依赖性电阻丝的传感器和测量电路的流体流量测量装置中，每个电阻线被卷绕以牢固地保持在由电气制成的支撑部件上的适当位置 绝缘材料和电加热器电阻丝和第一温度依赖性电阻丝，其响应于由电加热器电阻丝加热的被测量流体的温度，彼此交替地彼此缠绕在相同的支撑件上，所以 其卷绕方向与被测流体的流动方向成60°到120°的角度。 此外，每个支撑构件被构造和布置成使得其热容的影响最小化，并且还避免了流体流动中的湍流的发生，这对流量测量是不利的。 该结构可以提供具有高精度，改进的响应和提高的可靠性的流体流量测量装置。

公开(公告)号：US4257382A

公开(公告)日：1981-03-24

申请号：US85319

申请日：1979-10-16

申请人： Takeshi Matsui ,  Tokio Kohama ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

发明人： Takeshi Matsui ,  Tokio Kohama ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

IPC分类号： F02D21/08 ,  F02D43/00 ,  F02M7/24 ,  F02M7/28 ,  F02M25/07 ,  F02B47/08

CPC分类号： F02D41/005 ,  F02M7/24 ,  Y02T10/47

摘要： In an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a servomotor to be operated by pneumatic pressure and a control valve actuated by the servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe. The pneumatic pressure applied to the servomotor is electrically controlled without undesired errors to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed:Pe=f(Pv, N)where Pe is the pneumatic pressure applied to the servomotor, Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

摘要翻译： 在适于内燃机的废气再循环系统中，该系统包括由气动压力操作的伺服电动机和由伺服电机致动的控制阀，以控制从排气管道再循环到进气歧管中的废气量。 施加到伺服电动机的气压被电控制，没有不期望的误差，以满足关于发动机进气歧管真空和发动机转速的以下功能：Pe = f（Pv，N）其中Pe是施加到伺服电机的气动压力， Pv和N分别表示发动机进气歧管真空度和发动机转速。

公开(公告)号：US4230079A

公开(公告)日：1980-10-28

申请号：US17147

申请日：1979-03-02

申请人： Tokio Kohama ,  Tadashi Ozaki ,  Hideki Obayashi ,  Hidetaka Nohira

发明人： Tokio Kohama ,  Tadashi Ozaki ,  Hideki Obayashi ,  Hidetaka Nohira

IPC分类号： F02M25/07 ,  F02M25/06

CPC分类号： F02M26/56

摘要： An exhaust gas recirculation system for internal combustion engines comprises an exhaust gas recirculating passage for tapping engine exhaust gas from an exhaust pipe and feeding back to an engine intake pipe downstream of a throttle valve disposed therein, a control valve for opening and closing the recirculating passage in response to a pressure signal, and a throttle port formed in the intake pipe at such position that the port lies upstream of the throttle valve at the fully closed position thereof while lying downstream of the throttle valve when it is opened to a predetermined opening angle. A pressure control valve is provided for controlling the pressure signal to be transmitted to the control valve in accordance with a pressure in the intake pipe downstream of the throttle valve, a pressure derived from the throttle port and a pressure in a pressure cell provided in the recirculating passage upstream of the control valve, thereby to control the exhaust gas recirculation rate fed back to the intake pipe in consideration of the operating load conditions and the revolution number of the engine.

摘要翻译： 用于内燃机的废气再循环系统包括排气再循环通道，用于从排气管抽出发动机废气并将其反馈到设置在其中的节流阀下游的发动机进气管;用于打开和关闭循环通道的控制阀 响应于压力信号，以及形成在进气管中的节气门口，在这样的位置处，当阀门打开到预定的开启角度时，该端口位于节流阀的完全关闭位置的上游，同时位于节流阀的下游 。 一种压力控制阀，用于根据节流阀下游的进气管中的压力，从节气门口导出的压力和设置在节流阀中的压力室中的压力来控制要传递到控制阀的压力信号 考虑到工作负荷条件和发动机的转数，控制回流到进气管的废气再循环速度。