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1. 发明公开

EP1128033A3 Diagnosis device for an engine 审中-公开
标题翻译：一种用于内燃发动机的诊断装置
公开(公告)号：EP1128033A3
公开(公告)日：2003-11-05
申请号：EP01103674.6
申请日：2001-02-23
申请人： Hitachi, Ltd.
发明人： Nakagawa, Shinji , Ohsuga, Minoru , Ishii, Toshio , Takaku, Yutaka , Katogi, Kozo
IPC分类号： F01N11/00 , F02D41/02 , F01N3/08
CPC分类号： F01N3/0835 , F01N11/00 , F01N11/007 , F01N13/009 , F01N2550/03 , F01N2570/12 , F02D41/027 , F02D41/1441 , F02D41/1456 , F02D41/1495 , F02D2200/0802 , Y02T10/20 , Y02T10/47
摘要： A diagnosis system for an engine (100) including an exhaust pipe (10), a hydrocarbon (HC) absorbent (11) arranged within the exhaust pipe (10), an upstream air/fuel ratio sensor (12) arranged upstream of the HC absorbent (11) and detecting a wide range air/fuel ratio of an exhaust gas, a downstream air/fuel ratio sensor (13) arranged downstream of the HC absorbent (11) and detecting rich or lean with respect to stoichiometric air/fuel ratio of the exhaust gas, and a control unit (16), the control unit (16) includes means (31) for correcting an air/fuel ratio upstream of the HC absorbent (11), means (30) for correcting an air/fuel ratio downstream of the HC absorbent (11), and means (28) for predicting a HC absorbing amount of the HC absorbent (11), the means (31) for correcting the air/fuel ratio upstream of the HC absorbent (11) correcting and controlling an output value of the upstream air/fuel ratio sensor (12) toward lean, the means (28) for predicting the HC absorbing amount of the HC absorbent (11) predicting an absorbing performance of the HC absorbent (11) on the basis of a difference between an output value of the upstream air/fuel ratio sensor (12) and a predetermined value C during a period from a timing where a temperature of the HC absorbent (11) becomes higher than or equal to a predetermined value A and the output value of the upstream air/fuel ratio sensor (12) is corrected and controlled toward lean to a timing where the temperature becomes lower than or equal to a predetermined value B.

2. 发明公开

EP1223321A2 Internal combustion engine and fuel injection control device therefor 审中-公开
标题翻译： Verbrennungsmotor und entsprechende Steuervorrichtung der Kraftstoffeinspritzung
公开(公告)号：EP1223321A2
公开(公告)日：2002-07-17
申请号：EP02000178.0
申请日：2002-01-09
申请人： Hitachi, Ltd.
发明人： Abo, Matsuharu , Tanabe, Yoshiyuki , Fujii, Hiroshi , Onishi, Koji , Ishii, Toshio , Fujieda, Mamoru
IPC分类号： F02D33/02
CPC分类号： F02B23/104 , F02B2075/125 , F02D13/0219 , F02D13/0246 , F02D13/0261 , F02D41/402 , F02D2041/001 , F02D2041/0015 , F02D2041/389 , F02D2250/38 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/18 , Y02T10/44
摘要： The invention relates to an internal combustion engine with direct injection and supercharging in which the ignitability deteriorates because the density of the fuel at the spray center becomes excessive due to the shrinkage of the fuel spray under the supercharging. As a result, the density of the smoke and the hydrocarbon exhaust rate increase.
The mixture of the fuel and the air under the supercharging is promoted by the control of a TCV installed in the suction port which is a divided spray and air flow generation mechanism and by the valve timing control of the suction and exhaust valve, etc.
摘要翻译：本发明涉及一种具有直接喷射和增压的内燃机，其中由于在增压下的燃料喷雾的收缩，喷雾中心处的燃料密度变得过大，其中点火性劣化。结果，烟气的密度和碳氢化合物的排放率增加。燃料和增压下的空气混合通过控制安装在吸入口中的TCV来进行，该吸入口是分开的喷雾和空气流产生机构，并且通过抽吸和排气阀的气门正时控制等等

3. 发明公开

EP0326193A3 Ignition timing control method and apparatus for an internal combustion engine having a plurality of cylinders 失效
标题翻译：具有多个气缸的内燃机的点火时序控制方法和装置
公开(公告)号：EP0326193A3
公开(公告)日：1989-10-25
申请号：EP89105816.6
申请日：1986-02-28
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Sugiura, Noboru , Ishii, Toshio , Shida, Masami , Teragakiuchi, Akira , Mouri, Yasunori
IPC分类号： F02P5/15 , G01L23/22
CPC分类号： F02P5/1523 , F02B1/04 , F02P5/1521 , F02P5/1522 , F02P5/1525 , Y02T10/46
摘要： The invention relates to an ignition timing control method and apparatus for an internal combustion engine having a plurality of cylinders. The apparatus includes a knock sensor (401) for detecting a knocking condition in the engine, sensors (40, 50, 60) for detecting other operating conditions of the engine, a microprocessor unit (12) for receiving signals from the sensors (40, 50, 60) to determine a basic ignition timing of the engine and generate an ignition timing control signal, and a power transistor circuit (74) responsive to the ignition timing control signal from the microprocessor unit (12) to switch on and off the primary current in an ignition coil and generate a high-voltage ignition signal. The microprocessor unit (12) has a control function of retarding the basic ignition timing a predetermined amount in response to a knock detected during an ignition operation at the basic ignition timing and another control function of gradually restoring the retarded ignition timing to the basic ignition timing in response to a knock detected during an ignition operation at the retarded ignition timing from the basic ignition timing. The apparatus includes control means (12) responsive to the occurrence of a knock to correct the basic ignition timing for each cylinder of the engine whereby the basic ignition timing of each cylinder is controlled to be retarded in response to the detection of a knock in each cylinder.

4. 发明公开

EP0193896A1 Ignition timing control method and apparatus for an internal combustion engine having a plurality of cylinders 失效
标题翻译：用于控制多缸内燃机的点火正时的方法和装置。
公开(公告)号：EP0193896A1
公开(公告)日：1986-09-10
申请号：EP86102640.9
申请日：1986-02-28
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Sugiura, Noboru , Ishii, Toshio , Shida, Masami , Teragakiuchi, Akira , Mouri, Yasunori
IPC分类号： F02P5/15
CPC分类号： F02P5/1523 , F02B1/04 , F02P5/1521 , F02P5/1522 , F02P5/1525 , Y02T10/46
摘要： The invention relates to an ignition timing control method and apparatus for an internal combustion engine having a plurality of cylinders.
The apparatus includes a knock sensor (401) for detecting a knocking condition in the engine, sensors (40, 50, 60) for detecting other operating conditions of the engine, a microprocessor unit (12) for receiving signals from the sensors (40, 50, 60) to determine a basic ignition timing of the engine and generate an ignition timing control signal, and a power transistor circuit (74) responsive to the ignition timing control signal from the microprocessor unit (12) to switch on and off the primary current in an ignition coil and generate a high-voltage ignition signal. The microprocessor unit (12) has a control function of retarding the basic ignition timing a predetermined amount in response to a knock detected during an ignition operation at the basic ignition timing and another control function of gradually restoring the retarded ignition timing to the basic ignition timing in response to a knock detected during an ignition operation at the retarded ignition timing from the basic ignition timing. The apparatus includes control means (12) responsive to the occurrence of a knock to correct the basic ignition timing for each cylinder of the engine whereby the basic ignition timing of each cylinder is controlled to be retarded in response to the detection of a knock in each cylinder.
摘要翻译：本发明涉及在用于在内燃机具有的气缸的多个点火正时控制方法和装置。 ... 该设备包括用于在发动机检测爆震的条件，用于从接收信号检测发动机，一个微处理单元（12）的其它操作条件的爆震传感器（401），传感器（40，50，60）所述传感器（40，50，60），以确定的矿井发动机的基本点火正时，并生成对点火正时控制信号，和功率晶体管电路（74），响应于来自微处理器单元中的点火正时控制信号（12）以切换和关闭在点火线圈初级电流中并产生高压点火信号。微处理单元（12）具有延迟基本点火响应于在对基本点火时间上点火时检测到的操作的爆震和的延迟的点火正渐渐地恢复到所述基本点火正时的另一控制功能的时序一预定量的控制功能响应于在从所述基本点火正时的延迟的点火正手术点火期间检测到的爆震。该设备包括控制装置，响应于爆震的发生，以校正所述发动机，由此每个气缸的基本点火正时被控制为延迟响应于检测爆震的每个的每个气缸的基本点火定时（12）缸。

5. 发明公开

EP0115827A2 Method of controlling engine 失效
标题翻译：一种用于控制内燃机的方法。
公开(公告)号：EP0115827A2
公开(公告)日：1984-08-15
申请号：EP84100824.6
申请日：1984-01-26
申请人： HITACHI, LTD.
发明人： Tabuchi, Kenji , Shida, Masami , Ishii, Toshio
IPC分类号： F02P5/04
CPC分类号： F02P5/1502 , F02D41/062 , F02P5/1506 , Y02T10/46
摘要： In a method of controlling a 4-stroke cycle internal combustion engine for automobile, when only a positional signal, which is generated each time the crank shaft of engine is rotated once, is first generated after the start of engine, only the fuel injection control is immediately made. When both the positional signal and a reference cylinder signal which is generated each time the crank shaft is rotated twice are generated after the start of engine, the fuel injection control and ignition control are made.

6. 发明授权

EP1229224B1 System for diagnosing deterioration of catalyst 失效
标题翻译：用于诊断催化剂的劣化的装置
公开(公告)号：EP1229224B1
公开(公告)日：2004-12-15
申请号：EP02007279.9
申请日：1994-04-26
申请人： Hitachi, Ltd.
发明人： Mukaihira, Takashi , Ishii, Toshio , Miura, Kiyoshi , Kawano, Kazuya
IPC分类号： F01N11/00
CPC分类号： F01N9/005 , F01N11/00 , F01N11/002 , F01N11/005 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/06 , F01N2560/14 , F02D41/1441 , F02D41/1446 , F02D41/1454 , F02D41/22 , F02D2041/1415 , F02D2200/0802 , Y02T10/47

7. 发明公开

EP1229224A3 System for diagnosing deterioration of catalyst 失效
标题翻译：用于诊断催化剂的劣化的装置
公开(公告)号：EP1229224A3
公开(公告)日：2002-11-20
申请号：EP02007279.9
申请日：1994-04-26
申请人： Hitachi, Ltd.
发明人： Mukaihira, Takashi , Ishii, Toshio , Miura, Kiyoshi , Kawano, Kazuya
IPC分类号： F01N11/00
CPC分类号： F01N9/005 , F01N11/00 , F01N11/002 , F01N11/005 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/06 , F01N2560/14 , F02D41/1441 , F02D41/1446 , F02D41/1454 , F02D41/22 , F02D2041/1415 , F02D2200/0802 , Y02T10/47
摘要： A diagnostic system in which the accuracy of the diagnosis of the deterioration state of a catalyst (40 in Fig. 1) in a catalytic converter (4) for cleaning the exhaust gas of an internal combustion engine (2) is enhanced without incurring a rise in cost. The temperature of the catalyst (40) is estimated using the operating-state signal (for example, the flow rate of intake air Q a or the width 120 of a fuel injection pulse) of the engine (2) by a diagnostic device (8). The conversion efficiency of the catalyst (40) calculated from the outputs of oxygen sensors (6a, 6b) is corrected using the estimated temperature by the diagnostic device (8). The deterioration state of the catalyst (40) is diagnosed on the basis of the corrected temperature by the diagnostic device (8).

8. 发明授权

EP0844374B1 System for diagnosing deterioration of catalyst 失效
标题翻译：催化剂的劣化的诊断系统
公开(公告)号：EP0844374B1
公开(公告)日：2002-09-18
申请号：EP98101528.2
申请日：1994-04-26
申请人： Hitachi, Ltd.
发明人： Mukaihira, Takashi , Miura, Kiyoshi , Ishii, Toshio , Kawano, Kazuya
IPC分类号： F01N7/00 , F02D41/14
CPC分类号： F01N9/005 , F01N11/00 , F01N11/002 , F01N11/005 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/06 , F01N2560/14 , F02D41/1441 , F02D41/1446 , F02D41/1454 , F02D41/22 , F02D2041/1415 , F02D2200/0802 , Y02T10/47

9. 发明授权

EP0392411B2 A control apparatus for automobiles 失效
标题翻译：汽车控制设备
公开(公告)号：EP0392411B2
公开(公告)日：1999-01-07
申请号：EP90106737.1
申请日：1990-04-09
申请人： Hitachi, Ltd.
发明人： Hasegawa, Taiji , Fujisawa, Masaaki , Sakamoto, Masahide , Ishii, Toshio , Takahashi, Hideharu
IPC分类号： B60R25/00 , B60R16/02 , G06K1/00
CPC分类号： B60R25/24 , B60R16/0315 , G05B19/042 , G05B19/0428 , G05B2219/23355 , G05B2219/23362 , G05B2219/23375 , G05B2219/24098 , G05B2219/24167 , G05B2219/25083 , G05B2219/25084 , G05B2219/25171 , G05B2219/2637 , G07C5/0858 , G07C9/00031

10. 发明授权

EP0641920B1 Malfunction diagnosis apparatus for internal combustion engine 失效转让
标题翻译：用于内燃机的故障诊断装置
公开(公告)号：EP0641920B1
公开(公告)日：1998-12-02
申请号：EP94114042.8
申请日：1994-09-07
申请人： HITACHI, LTD. , Hitachi Car Engineering Co., Ltd.
发明人： Numata, Akihito , Mukaihira, Takashi , Ishii, Toshio , Takaku, Yutaka , Kawano, Kazuya
IPC分类号： F01N7/00 , F02D41/22 , F02D41/14
CPC分类号： F02D41/1495 , F01N11/007 , F01N2550/02 , F02D41/0235 , F02D41/1441 , F02D41/222 , F02D2041/1432 , Y02T10/40 , Y02T10/47

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