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公开(公告)号：EP0155680A3
公开(公告)日：1986-08-13
申请号：EP85103233
申请日：1985-03-20
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Sugiura, Noboru
IPC分类号： F02P05/04
CPC分类号： F02P5/1525 , F02P5/1522 , Y02T10/46
摘要： @ An angle of an ignition timing for a specific cylinder is gradually advanced. A comparison is made between the previous output of a knock detection circuit for the cylinder having its angle advanced and the present output thereof by a comparator (107). The comparator (107) evaluates an occurrence of a knock when an output signal therefrom changes drastically. The signal (111) from the comparator (107) rewrites the knock evaluation reference value in each cylinder written in the memory (108). When an output from the knock sensor (101) is larger than that of the memory (108), an ignition timing retard angle signal is output from the comparator (109). As a result, the apparatus of the present invention can control ignition timing without errors due to the deterioration with age or manufacturing errors, as it can correct knocking detection sensibility of the apparatus.
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公开(公告)号：EP0047394B1
公开(公告)日：1986-06-25
申请号：EP81106002.9
申请日：1981-07-30
申请人： Hitachi, Ltd.
发明人： Kashimura, Yuichi , Suda, Seiji , Sugiura, Noboru
CPC分类号： F02P5/152 , F02P5/1526 , G01L23/225 , Y02T10/46
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公开(公告)号：EP0887546A3
公开(公告)日：2000-10-11
申请号：EP98111520.7
申请日：1998-06-23
CPC分类号： F02P3/051
摘要： To provide an ignition device advantageous in cost and space by using an inexpensive small-sized Zener diode (23) having a Zener voltage lower than an induced voltage generated at a primary current supply timing, so as to prevent sparking of a spark plug (19) due to the induced voltage. An ignition device for an internal combustion engine, including a Zener diode (23) provided on the secondary lower-voltage side of an ignition coil (18). The Zener diode (23) comes into conduction at a voltage lower than an induced voltage generated at a primary current supply timing.
摘要翻译： 通过使用齐纳电压低于初级电流供应时产生的感应电压的便宜的小尺寸齐纳二极管（23），以便提供一种有利于成本和空间的点火装置，以防止火花塞（19 ）由于感应电压。 一种用于内燃机的点火装置，包括设置在点火线圈（18）的次级低压侧上的齐纳二极管（23）。 齐纳二极管（23）以低于在初级电流供应时刻产生的感应电压的电压进行导通。
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24.发明公开
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
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.
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公开(公告)号：EP0146668B1
公开(公告)日：1989-09-27
申请号：EP84103811.0
申请日：1981-07-30
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Suda, Seiji , Sugiura, Noboru
IPC分类号： G01L23/22
CPC分类号： F02P5/152 , F02P5/1526 , G01L23/225 , Y02T10/46
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公开(公告)号：EP0148308A3
公开(公告)日：1987-01-21
申请号：EP84103812
申请日：1981-07-30
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Suda, Seiji , Sugiura, Noboru
IPC分类号： G01L23/22
CPC分类号： G01L23/225 , F02P5/1526 , Y02T10/46
摘要： The invention refers to an engine knock control apparatus which includes a knock sensor (100) detecting engine knocking and producing a knock signal as output; it is characterized by a fail-safe device (102) which is disposed between the knock sensor (100) and an ignition control device (103) controlling the retard angle to a predetermined value by means of an upper and a lower limit setting voltage for detecting normal and abnormal conditions of the knock sensor, the fail-safe device (102) detecting normal conditions when the detected voltage of the knock sensor (100) is within the range of the setting voltages and detecting abnormal conditions and retarding the angle of the spark timing of the ignition control device (103) to a predetermined value by its output when the detected voltage is out of the range of the setting voltages.
摘要翻译： 本发明涉及一种发动机爆震控制装置，其包括：爆震传感器（100），其检测发动机爆震并产生爆震信号作为输出; 其特征在于：设置在爆震传感器（100）和点火控制装置（103）之间的故障安全装置（102），该装置利用上限和下限设定电压将延迟角控制为预定值，用于 当爆震传感器（100）的检测电压处于设定电压的范围内并且检测到异常状况并且延迟爆震传感器（100）的角度时，故障安全装置（102）检测正常状况 当检测到的电压在设定电压范围之外时，通过其输出使点火控制装置（103）的点火正时达到预定值。
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27.发明公开
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。
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公开(公告)号：EP0148308A2
公开(公告)日：1985-07-17
申请号：EP84103812.8
申请日：1981-07-30
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Suda, Seiji , Sugiura, Noboru
IPC分类号： G01L23/22
CPC分类号： G01L23/225 , F02P5/1526 , Y02T10/46
摘要： The invention refers to an engine knock control apparatus which includes a knock sensor (100) detecting engine knocking and producing a knock signal as output; it is characterized by a fail-safe device (102) which is disposed between the knock sensor (100) and an ignition control device (103) controlling the retard angle to a predetermined value by means of an upper and a lower limit setting voltage for detecting normal and abnormal conditions of the knock sensor, the fail-safe device (102) detecting normal conditions when the detected voltage of the knock sensor (100) is within the range of the setting voltages and detecting abnormal conditions and retarding the angle of the spark timing of the ignition control device (103) to a predetermined value by its output when the detected voltage is out of the range of the setting voltages.
摘要翻译： 本发明涉及一种发动机爆震控制装置，其包括检测发动机爆震并产生爆震信号作为输出的爆震传感器（100） 其特征在于故障安全装置（102），其设置在所述爆震传感器（100）和点火控制装置（103）之间，所述点火控制装置（103）借助于上限和下限设定电压将所述延迟角控制到预定值， 检测爆震传感器的正常和异常情况，当检测到的爆震传感器（100）的电压处于设定电压的范围内并检测异常状况并延迟角度时，故障保护装置（102）检测正常状态 当检测到的电压超出设定电压的范围时，其点火控制装置（103）的火花正时通过其输出达到预定值。
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29.发明公开
公开(公告)号：EP0146668A2
公开(公告)日：1985-07-03
申请号：EP84103811.0
申请日：1981-07-30
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi , Suda, Seiji , Sugiura, Noboru
IPC分类号： G01L23/22
CPC分类号： F02P5/152 , F02P5/1526 , G01L23/225 , Y02T10/46
摘要： The invention refers to an engine knock control apparatus including a knock sensor (100) detecting engine knocking and producing a knock signal as output and an amplifier amplifying the knock signal and is characterized by a knock signal clamping circuit (116A) coupled to the knock sensor (100) and clamping the output signal of the knock sensor (100) at a predetermined maximum level and preventing an abnormal rise of its signal voltage, an integrator (117) receiving the output signal from the clamping circuit (116A) and providing an integrated output signal and a comparator (118) receiving and comparing the integrated output signal and the knock signal which provides a spark timing control signal to an ignition control device (103) controlling the ignition timing of an ignition coil (135).
摘要翻译： 本发明涉及一种发动机爆震控制装置，其包括检测发动机敲击并产生作为输出的爆震信号的爆震传感器（100）和放大爆震信号的放大器，其特征在于耦合到爆震传感器的爆震信号钳位电路（116A） （100），并且将所述爆震传感器（100）的输出信号钳位在预定的最大电平并防止其信号电压的异常上升，积分器（117）接收来自钳位电路（116A）的输出信号，并提供集成 接收和比较积分输出信号和提供火花定时控制信号的爆震信号到比较器（118），该点火控制装置控制点火线圈（135）的点火正时。
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公开(公告)号：EP0099545A2
公开(公告)日：1984-02-01
申请号：EP83106876.2
申请日：1983-07-13
申请人： HITACHI, LTD.
发明人： Kashimura, Yuichi
CPC分类号： F02D41/1474
摘要： In an air-fuel ratio control apparatus for controlling the air-fuel ratio of an engine (1) in accordance with the output of an O2 sensor (3), in response to the starting of the engine (1) the output voltage of the 0 2 sensor (3) is sampled at intervals of a unit time. The slope of the output voltage waveform of the O 2 sensor (3) is computed from the successively sampled values. The computed value is compared with a predetermined value indicative of a slope value attained when the 0 2 sensor (3) is activated and thus it is considered that the O 2 sensor (3) is activated when the computed value is greater than the predetermined value.
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