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1. 发明授权

US06349540B1 Catalyst deterioration determining apparatus for internal combustion engine, and control method for the apparatus 失效
标题翻译：内燃机用催化剂劣化判定装置及其装置的控制方法
公开(公告)号：US06349540B1
公开(公告)日：2002-02-26
申请号：US09664389
申请日：2000-09-18
申请人： Shigeki Nakayama , Hiroki Matsuoka , Kohei Igarashi , Hiroshi Suwahara
发明人： Shigeki Nakayama , Hiroki Matsuoka , Kohei Igarashi , Hiroshi Suwahara
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/22 , Y02T10/47
摘要： A three-way catalyst device having an oxygen absorbing/releasing capability is provided in an exhaust passage of an internal combustion engine. An upstream-side air-fuel ratio sensor that outputs an output value in accordance with the air-fuel ratio of exhaust gas is provided in the exhaust passage upstream of the three-way catalyst device. A downstream-side air-fuel ratio sensor that outputs an output value in accordance with the air-fuel ratio of exhaust gas is provided in the exhaust passage downstream of the three-way catalyst device. A comparison value is calculated by comparing the length of an output locus formed by output values of the upstream-side air-fuel ratio sensor and the length of an output locus formed by output values of the downstream-side air-fuel ratio sensor. By comparing the comparison value with a predetermined criterion, it is determined whether the three-way catalyst device has deteriorated. At least one of the downstream-side air-fuel ratio sensor output value and the predetermined criterion is corrected in accordance with the downstream-side air-fuel ratio sensor output value. Therefore, deterioration of the three-way catalyst device can be determined with high precision.
摘要翻译：具有氧吸收/释放能力的三元催化剂装置设置在内燃机的排气通道中。在三通催化剂装置的上游的排气通道中设置有根据排气的空燃比输出输出值的上游侧空燃比传感器。在三通催化剂装置下游的排气通道中设置有输出与废气的空燃比相对应的输出值的下游侧空燃比传感器。通过比较由上游侧空燃比传感器的输出值形成的输出轨迹的长度与由下游侧空燃比传感器的输出值形成的输出轨迹的长度的比较来计算比较值。通过将比较值与预定标准进行比较，确定三元催化剂装置是否劣化。根据下游侧空燃比传感器输出值来校正下游侧空燃比传感器输出值和预定标准中的至少一个。因此，可以高精度地确定三元催化剂装置的劣化。

2. 发明授权

US06467466B1 Gas leakage detection and fail-safe control method for gas-fueled internal combustion engine and apparatus for implementing the same 有权
标题翻译：用于燃气内燃机的气体泄漏检测和故障安全控制方法及其实施方法
公开(公告)号：US06467466B1
公开(公告)日：2002-10-22
申请号：US09624250
申请日：2000-07-24
申请人： Masahiro Maekawa , Takahiro Aki , Kohei Igarashi , Hiroki Matsuoka
发明人： Masahiro Maekawa , Takahiro Aki , Kohei Igarashi , Hiroki Matsuoka
IPC分类号： F02B4300
CPC分类号： F02D41/0027 , F02D19/021 , F02D19/025 , F02D19/027 , F02D41/22 , F02D2041/224 , F02D2041/225 , F02M21/0242 , F02M21/0278 , Y02T10/32 , Y02T10/40
摘要： A method and apparatus is provided that can detect even small amounts of gas leakage and can perform a proper fail-safe operation when gas leakage is detected. When an engine is stopped and a gas shut-off valve is closed, the amount of decrease of gas pressure is calculated by comparing initial gas pressure with the gas pressure detected after the elapse of a prescribed time, to detect gas leakage. In one embodiment, gas leakage is detected by calculating the accumulated value of the amount of decrease of gas pressure each time the engine is stopped. In another embodiment, gas leakage is detected by calculating the rate of decrease of gas pressure from the initial gas pressure to the gas pressure detected after the elapse of a prescribed time. In a further embodiment, gas leakage is detected by calculating the accumulated value of the rate of decrease of gas pressure each time the engine is stopped. Further, when gas leakage is detected, the gas shut-off valve is closed and a warning is issued.
摘要翻译：提供了能够检测甚至少量的气体泄漏的方法和装置，并且当检测到气体泄漏时可以执行适当的故障安全操作。当发动机停止并且关闭气体切断阀时，通过将初始气体压力与经过规定时间后检测到的气体压力进行比较来计算气体压力的降低量，以检测气体泄漏。在一个实施例中，通过计算每次发动机停止时的气压降低量的累积值来检测气体泄漏。在另一个实施例中，通过计算从初始气体压力到经过规定时间之后检测到的气体压力的气体压力的降低率来检测气体泄漏。在另一实施例中，通过计算每次发动机停止时的气压降低率的累积值来检测气体泄漏。此外，当检测到气体泄漏时，关闭气体截止阀并发出警告。

3. 发明授权

US06240910B1 Fuel injection control system for compressed natural gas-fueled automotive vehicle 有权
标题翻译：用于压缩天然气燃料汽车的燃油喷射控制系统
公开(公告)号：US06240910B1
公开(公告)日：2001-06-05
申请号：US09493664
申请日：2000-01-28
申请人： Masahiro Maekawa , Kohei Igarashi , Hiroki Matsuoka , John Stephen Viggers
发明人： Masahiro Maekawa , Kohei Igarashi , Hiroki Matsuoka , John Stephen Viggers
IPC分类号： F02B4300
CPC分类号： F02D41/22 , F02D19/024 , F02D19/027 , F02D41/0027 , F02D41/0235 , F02D2041/224 , F02D2200/0802 , Y02T10/32
摘要： A compressed natural gas-fueled automotive vehicle is disclosed in which the fail-safe control operation is performed thereby to secure the safety of the vehicle when the gas pressure drops. If the remaining amount of the gas is very small, an engine misfire occurs. If the catalyst temperature is high, the uncombusted gas begins to burn on contact with the high-temperature catalyst in the catalyst unit. In view of this, upon detection of both a gas pressure drop and the vehicle moving condition or upon detection of both a gas pressure drop and an increased catalyst temperature, the fuel supply is stopped or the vehicle speed is reduced to thereby reduce the catalyst temperature. As a result, uncombusted gas is not burnt in the catalyst unit and the catalyst unit is prevented from being destroyed.
摘要翻译：公开了一种压缩天然气燃料汽车，其中执行故障保护控制操作，从而当气体压力下降时确保车辆的安全。如果气体的剩余量非常小，则发生发动机失火。如果催化剂温度高，则未燃烧的气体在与催化剂单元中的高温催化剂接触时开始燃烧。鉴于此，当检测到气体压降和车辆移动状况时，或者在检测到气体压降和增加的催化剂温度两者时，停止燃料供应或降低车辆速度，从而降低催化剂温度。结果，未燃烧的气体不会在催化剂单元中燃烧，并且防止催化剂单元被破坏。

4. 发明授权

US06672989B2 Direct injection type engine 失效
标题翻译：直喷式发动机
公开(公告)号：US06672989B2
公开(公告)日：2004-01-06
申请号：US10061194
申请日：2002-02-04
申请人： Hiroki Murata , Shizuo Sasaki , Kohei Igarashi
发明人： Hiroki Murata , Shizuo Sasaki , Kohei Igarashi
IPC分类号： F16H5960
CPC分类号： F02D41/024 , F02D41/0225 , F02D41/023 , F02D41/0275 , F02D41/028 , F02D41/187 , F02D2041/389 , F02D2200/0806 , F02D2200/0818 , F02D2250/18 , F02D2400/12 , Y02T10/26 , Y10S477/902 , Y10T477/65 , Y10T477/663
摘要： A direct injection type engine comprising a variable speed transmission. Engine control lines indicating the relationship between the engine rotational speed and required torque necessary for obtaining a required output are comprised of a first control line and a second control line at the high torque side and low speed side of the first control line. When the degree of activation of the exhaust gas purification device is low, the required torque and the engine rotational speed are made ones on the first control line in accordance with the required output, while when the degree of activation is high, the required torque and the engine rotational speed are made ones on the second control line in accordance with the required output.
摘要翻译：一种包括变速传动装置的直喷式发动机。指示发动机转速与获得所需输出所需扭矩之间的关系的发动机控制线由第一控制线的高转矩侧和低速侧的第一控制线和第二控制线构成。当废气净化装置的激活程度低时，根据所需的输出使所需扭矩和发动机转速在第一控制线上，而当激活程度高时，所需扭矩和根据所需输出，将发动机转速设定在第二控制线上。

5. 发明授权

US06516609B2 Compression ignition type engine 失效
公开(公告)号：US06516609B2
公开(公告)日：2003-02-11
申请号：US10022234
申请日：2001-12-20
申请人： Kohei Igarashi , Shizuo Sasaki , Hiroki Murata
发明人： Kohei Igarashi , Shizuo Sasaki , Hiroki Murata
IPC分类号： F01N300
CPC分类号： B60W20/15 , B60K6/485 , B60L2240/445 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , B60W2510/0619 , B60W2510/0666 , B60W2510/068 , B60W2510/244 , F02B3/06 , F02D41/0057 , F02D41/024 , F02D41/1446 , F02D41/187 , F02D41/3035 , F02D41/3076 , F02D2041/0022 , F02D2041/026 , F02D2041/389 , Y02T10/26 , Y02T10/52 , Y02T10/54 , Y02T10/6226 , Y02T10/6286 , Y10S903/903
摘要： There is provided a compression ignition type engine comprising an exhaust gas purification catalyst, and an electric motor for generating an output separated from the engine output. The engine may selectively perform a first control to make the engine output an output larger than that determined on the basis of the engine operation state, and a second control to operate the engine under the first combustion mode in which the inert gas amount in the chamber is larger than that in which the soot generation amount is peak.

6. 发明授权

US4604700A Apparatus for indicating an optimum time to shift a manual transmission installed in a vehicle 失效
标题翻译：用于指示移动安装在车辆中的手动变速器的最佳时间的装置
公开(公告)号：US4604700A
公开(公告)日：1986-08-05
申请号：US533560
申请日：1983-09-19
申请人： Kohei Igarashi , Kazuo Tomita
发明人： Kohei Igarashi , Kazuo Tomita
IPC分类号： B60K23/00 , F16H59/78 , F16H61/00 , F16H61/02 , F16H63/42 , B60K41/18 , G07C5/08 , G09B19/16
CPC分类号： F16H63/42 , F16H59/78 , F16H2061/0096 , F16H61/0213
摘要： An apparatus for indicating an optimum time to shift a manual transmission in a vehicle. An electronic control unit is provided to compare the actual gear shift position with the electronically memorized optimum gear shift position. The optimum gear shift position is predetermined by examining the parameters of engine speed, vehicle speed, engine load and engine temperature. If the actual gear shift position differs from the memorized and stored optimum gear shift position, the operator is notified by a shift indicator lamp or loudspeaker.
摘要翻译：一种用于指示移动车辆中的手动变速器的最佳时间的装置。提供电子控制单元以将实际换档位置与电子存储的最佳换档位置进行比较。通过检查发动机转速，车速，发动机负荷和发动机温度等参数来预先确定最佳变速档位。如果实际换档位置与存储的存储的最佳换档位置不同，则通过换档指示灯或扬声器通知操作者。

7. 发明授权

US06672050B2 Exhaust gas purification device of an engine 失效
标题翻译：发动机废气净化装置
公开(公告)号：US06672050B2
公开(公告)日：2004-01-06
申请号：US10232360
申请日：2002-09-03
申请人： Hiroki Murata , Toshio Suematsu , Shizuo Sasaki , Kohei Igarashi , Shinya Hirota , Kazuhiro Itoh , Takamitsu Asanuma , Shunsuke Toshioka , Koichi Kimura , Akira Mikami , Hiroyuki Nagareda
发明人： Hiroki Murata , Toshio Suematsu , Shizuo Sasaki , Kohei Igarashi , Shinya Hirota , Kazuhiro Itoh , Takamitsu Asanuma , Shunsuke Toshioka , Koichi Kimura , Akira Mikami , Hiroyuki Nagareda
IPC分类号： F01N300
CPC分类号： B60W10/06 , B60K6/485 , B60L15/2045 , B60L2240/36 , B60L2240/423 , B60L2240/443 , B60L2270/12 , F02D41/024 , F02D41/0255 , F02D41/0275 , F02D41/029 , F02D41/083 , F02D41/1446 , F02D41/187 , F02D2041/026 , F02D2041/389 , F02D2200/0802 , F02D2200/0812 , F02D2250/18 , F02M26/06 , F02M26/15 , Y02T10/26 , Y02T10/6226 , Y02T10/645 , Y02T10/72 , Y02T10/7283
摘要： An exhaust gas purification device of an engine comprising a particulate filter arranged in an exhaust passage. An electric motor able to impart a vehicle drive power separate from the engine and able to generate electric power from the engine is provided. After the particulate filter finishes being warmed up, when the temperature of the particulate filter is low, the output torque of the engine is increased and the amount of increase of the output torque is consumed by the power generating action of the electric motor.
摘要翻译：一种发动机的排气净化装置，其包括布置在排气通道中的颗粒过滤器。提供能够赋予与发动机分离并能够从发动机产生电力的车辆驱动力的电动机。在颗粒过滤器完成加热之后，当微粒过滤器的温度低时，发动机的输出扭矩增加，并且由电动机的发电动作消耗输出转矩的增加量。

8. 发明授权

US06581372B2 Compression ignition type engine 失效
公开(公告)号：US06581372B2
公开(公告)日：2003-06-24
申请号：US09964489
申请日：2001-09-28
申请人： Shizuo Sasaki , Kohei Igarashi , Hiroki Murata
发明人： Shizuo Sasaki , Kohei Igarashi , Hiroki Murata
IPC分类号： F01N300
CPC分类号： B60W20/00 , B60K6/485 , B60K6/54 , B60W10/04 , B60W10/06 , B60W10/08 , B60W10/26 , B60W2510/244 , B60W2710/0622 , B60Y2300/476 , B60Y2400/435 , F01N3/0233 , F01N3/035 , F01N3/0821 , F01N3/0842 , F01N2570/16 , F02B3/06 , F02B23/06 , F02B23/0672 , F02B29/0406 , F02B37/00 , F02D41/0275 , F02D41/3035 , F02D2250/24 , F02M26/06 , F02M26/15 , F02M26/23 , F02M26/33 , Y02T10/125 , Y02T10/54 , Y02T10/6226 , Y02T10/6286 , Y10S903/903 , Y10S903/917
摘要： A compression ignition type engine selectively switching between a first combustion where an amount of recirculated exhaust gas supplied in a combustion chamber (5) is greater than an amount of recirculated exhaust gas where the amount of production of soot peaks and a second combustion where the amount of recirculated exhaust gas supplied in the combustion chamber (5) is smaller than the amount of recirculated exhaust gas where the amount of production of soot peaks. A particulate filter (24) carrying a NOx absorbent (71) is arranged in the engine exhaust passage. When SOx should be released from the NOx absorbent (71) and there is leeway in the electrical energy stored in the battery (41), the first combustion is performed even when the second combustion should be performed and the drop in output power of the energy is made up by the output torque of an electric motor (37).

9. 发明授权

US4202173A Secondary air supplying device of an internal combustion engine 失效
标题翻译：内燃机二次空气供给装置
公开(公告)号：US4202173A
公开(公告)日：1980-05-13
申请号：US913885
申请日：1978-06-08
申请人： Nobuaki Wakita , Kohei Igarashi
发明人： Nobuaki Wakita , Kohei Igarashi
IPC分类号： F01N3/22 , F02M25/07 , F01N3/10
CPC分类号： F01N3/227 , F01N3/22 , F01N3/222 , F02M26/57 , F02M2026/002
摘要： Disclosed is a secondary air supplying device of an internal combustion engine having an exhaust passage provided with a catalyzer for purifying exhaust gas. The device includes a first air injection port provided in the exhaust passage at the upstream side of an exhaust manifold and a second air injection port provided in the exhaust passage at the upstream side of the catalyzer. Under the engine warming operating condition only when the engine speed is abruptly accelerated, or during a predetermined time interval after the engine is warmed, is secondary air injected into the exhaust passage from the second air injection port. When the engine is in the other operating conditions, secondary air is injected into the exhaust passage from the first air injection port.
摘要翻译：公开了一种内燃机的二次空气供给装置，其具有设有用于净化废气的催化剂的排气通路。该装置包括设置在排气歧管的上游侧的排气通道中的第一空气喷射口和设置在催化剂的上游侧的排气通路中的第二空气喷射口。在发动机加温运行条件下，仅当发动机转速突然加速时，或者在发动机加热后的预定时间间隔内，二次空气从第二空气喷射口喷射到排气通道中。当发动机处于其他操作状态时，二次空气从第一空气喷射口喷射到排气通道中。

10. 发明授权

US4881368A Double air-fuel ratio sensor system having improved exhaust emission characteristics 失效
标题翻译：具有改善的废气排放特性的双重空燃比传感器系统
公开(公告)号：US4881368A
公开(公告)日：1989-11-21
申请号：US152928
申请日：1988-02-05
申请人： Takayuki Demura , Kohei Igarashi
发明人： Takayuki Demura , Kohei Igarashi
IPC分类号： F02D41/14
CPC分类号： F02D41/1441
摘要： In a double air-fuel sensor system including two air-fuel ratio sensors upstream and downstream of a catalyst converter provided in an exhaust gas passage, an air-fuel ratio correction amount is calculated in accordance with the outputs of the upstream-side and downstream-side air-fuel ratio sensors, thereby obtaining an actual air-fuel ratio. When all of the feedback control conditions for the downstream-side air-fuel ratio sensor are satisfied, a speed of renewal of the air-fuel ratio correction amount in accordance with the output of the downstream-side air-fuel ratio sensor is lowered before the output of the downstream-side air-fuel ratio sensor is reversed or for a predetermined time period.
摘要翻译：在设置在废气通道中的催化剂转化器的上游和下游的两个空燃比传感器系统中，根据上游侧和下游的输出，计算空燃比校正量侧空燃比传感器，从而获得实际的空燃比。当满足下游侧空燃比传感器的所有反馈控制条件时，根据下游侧空燃比传感器的输出的空燃比校正量的更新速度在下游侧空燃比传感器的输出反转或预定时间。

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