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21. 发明授权

US4732127A Air/fuel ratio control system for an internal combustion engine with a function for preventing the blackening phenomenon of oxygen concentration sensor 失效
标题翻译：具有防止氧浓度传感器黑化现象的内燃机的空燃比控制系统
公开(公告)号：US4732127A
公开(公告)日：1988-03-22
申请号：US905434
申请日：1986-09-10
申请人： Tomohiko Kawanabe , Masahiko Asakura , Katsuhiko Kimura , Minoru Muroya
发明人： Tomohiko Kawanabe , Masahiko Asakura , Katsuhiko Kimura , Minoru Muroya
IPC分类号： F02B3/00 , F02D41/00 , F02D41/14 , G01N27/406 , G01N27/417
CPC分类号： G01N27/417 , F02D41/1476 , G01N27/4065 , F02D41/1456
摘要： An air/fuel ratio control system for an internal combustion engine having an air supply system for controlling the air/fuel ratio of mixture to be supplied to the engine, and an oxygen concentration sensing device for sensing the oxygen concentration in the exhaust gas of the internal combustion engine. The oxygen concentration sensing device includes a pair of solid electrolyte members operating as an oxygen pump element to which a pump current is supplied, and a sensor cell element. An open/close valve is provided in the air supply system and controlled by a duty ratio control circuit which causes the open/close valve to be opened for a calculated valve open time period in each of successive predetermined cycles in response to a result of detection of air/fuel ratio. When the calculated valve open time period exceeds a predetermined upper limit, the supply of the pump current is stopped so that the blackening phenomenon of the solid electrolyte members is avoided.
摘要翻译：一种用于内燃机的空气/燃料比控制系统，具有用于控制供给发动机的混合物的空气/燃料比的空气供给系统，以及用于检测发动机的排气中的氧气浓度的氧浓度检测装置内燃机。氧浓度检测装置包括作为供给泵电流的氧气泵元件而工作的一对固体电解质部件和传感器电池元件。在供气系统中设置一个开/关阀，并由占空比控制电路控制，该占空比控制回路响应于检测结果，在连续的每个预定循环中使打开/关闭阀打开计算的阀打开时间段的空气/燃料比。当所计算的阀打开时间段超过预定上限时，停止泵电流的供给，从而避免固体电解质部件的变黑现象。

22. 发明授权

US4818362A Oxygen concentration sensing apparatus 失效
标题翻译：氧气浓度检测装置
公开(公告)号：US4818362A
公开(公告)日：1989-04-04
申请号：US27893
申请日：1987-03-19
申请人： Masahiko Asakura , Tomohiko Kawanabe , Minoru Muroya , Shin'ichi Kubota , Katsuhiko Kimura , Yasunari Seki , Kouji Matsuura
发明人： Masahiko Asakura , Tomohiko Kawanabe , Minoru Muroya , Shin'ichi Kubota , Katsuhiko Kimura , Yasunari Seki , Kouji Matsuura
IPC分类号： G01N27/406 , G01N27/58
CPC分类号： G01N27/4065
摘要： An apparatus for sensing the concentration of oxygen in a gas such as engine exhaust gas includes an oxygen concentration sensor formed of an oxygen pump element and a sensor cell element, each based on a solid electrolytic member formed of a material such as ZrO.sub.2, and is provided with a limiter circuit which functions to reduce the level of current supplied to the oxygen pump element when a voltage produced by the sensor cell element indicates that this current level is such as to produce a "blackening" phenomenon whereby deterioration of the oxygen pump element will occur and oxygen concentration sensing reliability will be lowered. The apparatus also includes a delay circuit which functions such that a reduction of the oxygen pump element current level is delayed by a predetermined time interval, after an increase of the sensor cell element voltage to the "blanking" region is detected, thereby preventing fluctuations in the oxygen pump element current level due to transient increases in sensor cell element voltage and increasing the sensing reliability.
摘要翻译：用于检测诸如发动机废气的气体中的氧浓度的装置包括由氧泵元件和传感器电池元件形成的氧浓度传感器，每个氧浓度传感器基于由诸如ZrO 2的材料形成的固体电解部件，并且是设置有限制电路，其功能是当由传感器电池元件产生的电压指示该电流水平产生“变黑”现象时，降低供应给氧泵元件的电流电平，从而使氧泵元件的劣化会发生氧浓度检测的可靠性降低。该装置还包括延迟电路，其功能是使得在检测到“消隐”区域的传感器单元元件电压增加之后，将氧气泵元件电流水平的减小延迟预定时间间隔，从而防止波动氧泵元件电流水平由于传感器单元电压的瞬态增加而增加了传感器的可靠性。

23. 发明授权

US4804454A Oxygen concentration sensing apparatus 失效
标题翻译：氧气浓度检测装置
公开(公告)号：US4804454A
公开(公告)日：1989-02-14
申请号：US28138
申请日：1987-03-19
申请人： Masahiko Asakura , Yasunari Seki , Takanori Shiina , Minoru Muroya
发明人： Masahiko Asakura , Yasunari Seki , Takanori Shiina , Minoru Muroya
IPC分类号： G01N27/419 , G01N27/27 , G01N27/406 , G01N27/409 , G01N27/413 , G01N27/417 , G01N27/58
CPC分类号： G01N27/417 , G01N27/4065
摘要： An oxygen concentration sensing apparatus includes an oxygen pump element and a sensor cell element to be placed in a gas under measurement, and a device for generating a voltage value command indicating a voltage to be generated across electrodes of the sensor cell element. A current limit device is provided so that the supply of the voltage value command is stopped to decrease a pump current to the oxygen pump element gradually when the voltage generated across the electrodes of the sensor cell element exceeds a first predetermined voltage, and the pump current to the oxygen pump element is reduced immediately when the voltage generated across the electrodes of the sensor cell element exceeds a second predetermined voltage which is higher than the first predetermined voltage.
摘要翻译：氧浓度检测装置包括氧气泵元件和放置在测量气体中的传感器电池元件，以及用于产生表示在传感器电池元件的电极之间产生的电压的电压值指令的装置。提供电流限制装置，使得当传感器电池元件两端产生的电压超过第一预定电压时，电压值指令的供给被停止以逐渐减小到氧气泵元件的泵浦电流，并且泵电流当在传感器单元元件的电极两端产生的电压超过比第一预定电压高的第二预定电压时，氧气泵元件立即被减小。

24. 发明授权

US4774920A Idling speed control system for internal combustion engines 失效
标题翻译：内燃机空转速度控制系统
公开(公告)号：US4774920A
公开(公告)日：1988-10-04
申请号：US880686
申请日：1986-07-01
申请人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
发明人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
IPC分类号： F02M69/32 , F02D31/00 , F02D41/00 , F02D41/16
CPC分类号： F02D31/003
摘要： An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in response to pressures supplied from a change-over control valve to the vacuum chamber. The change-over control valve selectively supplies the vacuum chamber with a first control pressure for opening the throttle valve and a second control pressure for closing same. An electronic control unit generates an on-off control pulse signal having a pulse repetition period corresponding to rotational speed of the engine, one of on-period or off-period of the on-off control pulse signal having a predetermined constant value, and supplies the change-over control valve with the on-off control pulse signal. A valve opening-correcting device is operatively connected to the throttle valve and responsive to at least one predetermined external load applied on the engine for correcting to a larger opening the opening of the throttle valve which is determined by the change-over control valve in response to the on-off control pulse signal.
摘要翻译：一种用于控制内燃机的空转转速的怠速控制系统。具有限定真空室的隔膜的真空操作致动器响应于从转换控制阀提供给真空室的压力来控制节流阀的打开和关闭。切换控制阀选择性地向真空室供给用于打开节流阀的第一控制压力和用于关闭节气门的第二控制压力。电子控制单元生成具有对应于发动机的转速的脉冲重复周期的开关控制脉冲信号，具有预定常数值的开 - 关控制脉冲信号的导通周期或截止周期之一，并且供给切换控制阀具有开关控制脉冲信号。阀开启校正装置可操作地连接到节流阀，并且响应于施加在发动机上的至少一个预定的外部负载，用于校正由转换控制阀响应地确定的节流阀的开度较大的开度到开关控制脉冲信号。

25. 发明授权

US4736720A Idling speed control system for internal combustion engines 失效
标题翻译：内燃机空转速度控制系统
公开(公告)号：US4736720A
公开(公告)日：1988-04-12
申请号：US875646
申请日：1986-06-18
申请人： Masahiko Asakura , Hiroshi Hasebe , Haruo Shimamura , Michio Sakaino
发明人： Masahiko Asakura , Hiroshi Hasebe , Haruo Shimamura , Michio Sakaino
IPC分类号： F02D31/00 , F02M3/07 , F02M23/04
CPC分类号： F02M3/07 , F02D31/003
摘要： An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in response to first and second control pressures supplied from a change-over control valve to the vacuum chamber. An electronic control unit generates, in response to an on-off control pulse signal having a period corresponding to rotational speed of the engine, one of on-period and off-period of the on-off control pulse signal having a predetermined constant value, and supplies the change-over control valve with the control pulse signal. Preferably, a detector is connected to the electronic control unit for detecting a change in the magnitude of a load on the engine and supplying the electronic control unit with an output signal indicative of the detected change in the load magnitude. The electronic control unit is responsive to the output signal for setting the pulse duration of the on-off control pulse signal to a value different from the above predetermined constant pulse duration. A delay valve provided across a passage connecting between the vacuum chamber and the change-over control valve sets the feeding speed of the first control pressure and that of the second control pressure fed through the passage to different values from each other.
摘要翻译：一种用于控制内燃机的空转转速的怠速控制系统。具有限定真空室的隔膜的真空操作致动器响应于从转换控制阀提供给真空室的第一和第二控制压力来控制节流阀的打开和关闭。电子控制单元响应于具有对应于发动机的转速的周期的开 - 关控制脉冲信号，产生具有预定常数值的开 - 关控制脉冲信号的导通周期和非周期中的一个，并向转换控制阀提供控制脉冲信号。优选地，检测器连接到电子控制单元，用于检测发动机上的负载的大小的变化，并向电子控制单元提供指示检测到的负载大小变化的输出信号。电子控制单元响应输出信号，将开关控制脉冲信号的脉冲持续时间设定为与上述预定恒定脉冲持续时间不同的值。设置在连接真空室和转换控制阀之间的通道的延迟阀将第一控制压力的进给速度和通过通道供给的第二控制压力的进给速度设定为彼此不同的值。

26. 发明授权

US4771755A Abnormality detecting method for air-fuel ratio control system for internal combustion engines 失效
标题翻译：内燃机空燃比控制系统异常检测方法
公开(公告)号：US4771755A
公开(公告)日：1988-09-20
申请号：US5644
申请日：1987-01-21
申请人： Masahiko Asakura , Hiroshi Hasebe , Shinichi Kubota , Yoshitaka Hibino , Koji Kajita , Atsushi Totsune
发明人： Masahiko Asakura , Hiroshi Hasebe , Shinichi Kubota , Yoshitaka Hibino , Koji Kajita , Atsushi Totsune
IPC分类号： F02D35/00 , F02D41/14 , F02D41/20 , F02D41/22
CPC分类号： F02D35/003 , F02D41/1495 , F02D41/20 , F02D2011/102 , F02D2041/2058 , F02D2041/2093 , F02D2041/228
摘要： A method of detecting abnormality in an air-fuel ratio control system for an internal combustion engine, the air-fuel ratio control system having a proportional control valve arranged in an air supply passage for supplying secondary air therethrough to the engine and controlled in response to an output signal from an oxygen concentration sensor arranged in an exhaust system of the engine in a manner such that its valve opening varies in proportion to the magnitude of driving current supplied thereto. A circuit is provided which includes a first transistor, the proportional control valve, and a second transistor arranged in the order mentioned and serially connected with each other between a power source for supplying a predetermined voltage and ground. A value of voltage at a predetermined location in said circuit is sensed while the first and second transistors are in predetermined states of conduction and non-conduction. It is determined whether there is abnormality in the air-fuel ratio control system, on the basis of the sensed voltage value.
摘要翻译：一种检测内燃机的空燃比控制系统的异常的方法，所述空燃比控制系统具有比例控制阀，该比例控制阀配置在空气供给通路中，用于将二次空气供给到发动机，并响应于来自设置在发动机的排气系统中的氧浓度传感器的输出信号，使得其开度与提供给其的驱动电流的大小成比例地变化。提供了一种电路，其包括第一晶体管，比例控制阀和以所述顺序布置的第二晶体管，并且在用于提供预定电压和地之间的电源之间彼此串联连接。当第一和第二晶体管处于预定的导通和非导通状态时，感测在所述电路中的预定位置处的电压值。基于感测的电压值来确定空燃比控制系统中是否存在异常。

27. 发明授权

US4750461A Idling speed control system for internal combustion engines 失效
标题翻译：内燃机空转速度控制系统
公开(公告)号：US4750461A
公开(公告)日：1988-06-14
申请号：US880727
申请日：1986-07-01
申请人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
发明人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
IPC分类号： F02D41/16 , F02D31/00 , F02D41/00 , F02M3/07
CPC分类号： F02D31/005 , F02M3/07
摘要： An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in an intake passage of the engine in response to first and second control pressures supplied from a change-over control valve to the vacuum chamber. An electronic control unit generates an on-off control pulse signal having a period corresponding to the rotational speed of the engine, one of on-period and off-period of the on-off control pulse signal having a predetermined constant value, and supplies the change-over control valve with the on-off control pulse signal, in response to which the change-over control valve supplies the vacuum chamber of the vacuum-operated actuator, selectively, with the first control pressure and the second control pressure, determines the engine rotational speed and a rate of decrease in the engine rotational speed, and halts the control for a predetermined period of time when the determined engine rotational speed falls within a predetermined range and at the same time the determined rate of decrease in the engine rotational speeds falls within a predetermined range.
摘要翻译：一种用于控制内燃机的空转转速的怠速控制系统。具有限定真空室的隔膜的真空操作致动器响应于从转换控制阀提供给真空室的第一和第二控制压力来控制发动机的进气通道中的节流阀的打开和关闭。电子控制单元生成具有与发动机的转速相对应的周期的开 - 关控制脉冲信号，其中开通控制脉冲信号的导通周期和截止周期之一具有预定的常数值，并且将切换控制阀具有开 - 关控制脉冲信号，响应于此，转换控制阀选择性地以第一控制压力和第二控制压力供应真空操作致动器的真空室，确定发动机旋转速度和发动机转速的降低率，并且当所确定的发动机转速落在预定范围内时，将控制停止预定时间段，同时确定发动机转速的确定的减速率落在预定范围内。

28. 发明授权

US4693220A Idling speed control system for internal combustion engines 失效
标题翻译：内燃机空转速度控制系统
公开(公告)号：US4693220A
公开(公告)日：1987-09-15
申请号：US880788
申请日：1986-07-01
申请人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
发明人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
IPC分类号： F02D41/16 , F02D31/00 , F02D41/00 , F02M3/07
CPC分类号： F02D31/003 , F02M3/07
摘要： A vacuum-operated actuator controls opening and closing of a throttle valve in an intake passage of an internal combustion engine in response to pressure in a vacuum chamber thereof. A change-over control valve supplies the vacuum chamber, selectively, with first and second control pressures for opening and closing the throttle valve, respectively. An electronic control unit controls the engine idling rotational speed by generating an on-off control pulse signal having a period corresponding to the engine rotational speed, and supplying the change-over control valve with the on-off control pulse signal to cause same to supply the vacuum chamber with the first or second control pressure. The electronic control unit determines the engine rotational speed and a rate of decrease in the engine rotational speed, and halts the idling speed control for a predetermined period of time when the determined engine rotational speed falls within a predetermined range and at the same time the determined rate of decrease falls within a predetermined range. A valve opening-correcting device corrects the throttle valve opening to a larger opening in response to at least one predetermined external load applied on the engine. The electronic control unit actuates the valve opening-correcting device to increase the throttle valve opening which is determined by the change-over control valve in response to the on-off control pulse signal.
摘要翻译：真空操作的致动器响应于其真空室中的压力来控制内燃机的进气通道中的节流阀的打开和关闭。切换控制阀选择性地为真空室提供用于打开和关闭节流阀的第一和第二控制压力。电子控制单元通过产生具有与发动机转速相对应的周期的开 - 关控制脉冲信号来控制发动机怠速转速，并向切换控制阀供给开 - 关控制脉冲信号，具有第一或第二控制压力的真空室。电子控制单元确定发动机转速和发动机转速的降低率，并且当所确定的发动机转速落在预定范围内并且同时确定时，将空转速度控制停止预定时间段降低率落在预定范围内。响应于施加在发动机上的至少一个预定的外部负载，阀门打开校正装置将节气门开度校正到更大的开度。电子控制单元响应于开关控制脉冲信号致动阀打开校正装置以增加由转换控制阀确定的节气门开度。

29. 发明授权

US4753202A Idling speed control system for internal combustion engines 失效
标题翻译：内燃机空转速度控制系统
公开(公告)号：US4753202A
公开(公告)日：1988-06-28
申请号：US880782
申请日：1986-07-01
申请人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
发明人： Hiroshi Hasebe , Masahiko Asakura , Michio Sakaino , Yukio Miyashita
IPC分类号： F02D31/00 , F02D41/16
CPC分类号： F02D31/004
摘要： An idling speed control system for controlling idling rotational speed of an internal combustion engine. A vacuum-operated actuator having a diaphragm defining a vacuum chamber controls opening and closing of a throttle valve in response to pressures suppliedfrom a change-over control valve to the vacuum chamber. The change-over control valve selectively supplies the vacuum chamber with a first control pressure for opening the throttle valve and a second control pressure for closing same. An electronic control unit generates an on-off control pulse signal having a pulse repetition period corresponding to rotational speed of the engine, one of on-period or off-period of the on-off control pulse signal having a predetermined constant value, and supplies the change-over control valve with the on-off control pulse signal. The electronic control unit is adapted to gradually increase the on-off pulse control signal when the engine rotational speed is in a first region higher than a predetermined idling rotational speed region, and gradually decrease the one of the on-period and off-period of the on-off control pulse signal when the rotational speed is in a second region lower than the predetermined idling rotational speed region.
摘要翻译：一种用于控制内燃机的空转转速的怠速控制系统。具有限定真空室的隔膜的真空操作致动器响应于从转换控制阀提供给真空室的压力来控制节流阀的打开和关闭。切换控制阀选择性地向真空室供给用于打开节流阀的第一控制压力和用于关闭节气门的第二控制压力。电子控制单元生成具有对应于发动机的转速的脉冲重复周期的开关控制脉冲信号，具有预定常数值的开 - 关控制脉冲信号的导通周期或截止周期之一，并且供给切换控制阀具有开关控制脉冲信号。电子控制单元适于在发动机转速处于高于预定怠速转速区域的第一区域内时逐渐增加开 - 关脉冲控制信号，并逐渐减小开/关脉冲控制信号当旋转速度处于比预定空转转速区域低的第二区域时的开关控制脉冲信号。

30. 发明申请

US20110061483A1 STEERING LOCK DEVICE 有权
标题翻译：转向锁定装置
公开(公告)号：US20110061483A1
公开(公告)日：2011-03-17
申请号：US12991536
申请日：2009-05-07
申请人： Masahiko Asakura
发明人： Masahiko Asakura
IPC分类号： F16H25/20
CPC分类号： F16D63/006 , B60R25/02 , F16D2121/24 , F16D2121/26 , F16D2125/32 , Y10T70/5655 , Y10T70/5956 , Y10T74/18312 , Y10T74/18592 , Y10T74/2101
摘要： An actuator (A) of a steering lock device includes a tubular member (17) that is fitted around an outer periphery of a lock pin (14) and is rotated by an electric motor (19), a helical cam groove (14e) is provided, among an inner peripheral face of the tubular member (17) and an outer peripheral face of the lock pin (14), in the outer peripheral face of the lock pin (14), a ball (21) is disposed between the cam groove (14e) and a ball retaining groove (17a, 17a) of the tubular member (17), and a guide pin (23) implanted in the lock pin (14) opposes a cam face (17d) formed on the inner peripheral face of the tubular member (17). Even when a bottom part of the ball retaining groove (17a, 17a) is worn and the lock pin (14) cannot be pulled out from a recess (12a) by the cam groove (14e), the lock pin (14) can be pulled out completely from the recess (12a) by the cam face (17d) and the guide pin (23) and, moreover, since the cam groove (14e) and the cam face (17d) are provided so as to be divided between the tubular member (17) and the lock pin (14), it is possible to achieve a reduction in the size of the actuator (A).
摘要翻译：转向锁定装置的致动器（A）包括：管状构件（17），其围绕锁定销（14）的外周安装并由电动机（19）旋转，螺旋形凸轮槽（14e）为在所述锁定销（14）的外周面中，在所述管状部件（17）的内周面和所述锁定销（14）的外周面之间设置有在所述凸轮所述管状部件（17）的槽（14e）和球保持槽（17a，17a）和植入所述锁定销（14）的引导销（23）相对于形成在所述内周面的管状构件（17）。即使当球保持槽（17a，17a）的底部磨损并且锁定销（14）不能被凸轮槽（14e）从凹部（12a）拉出时，锁定销（14）也可以是通过凸轮面（17d）和引导销（23）从凹部（12a）完全拉出，此外，由于凸轮槽（14e）和凸轮面（17d）被设置成在管状构件（17）和锁定销（14），可以实现致动器（A）的尺寸的减小。

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