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。

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。

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。

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。

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。

公开(公告)号：US4683860A

公开(公告)日：1987-08-04

申请号：US804304

申请日：1985-12-03

申请人： Haruo Shimamura ,  Hideo Kobayashi ,  Masahiko Asakura

发明人： Haruo Shimamura ,  Hideo Kobayashi ,  Masahiko Asakura

IPC分类号： F02D3/00 ,  F02M7/12 ,  F02M7/20

CPC分类号： F02M7/20

摘要： A device for increasing an amount of fuel to be supplied to an engine includes a fuel increasing mechanism for supplying an added amount of fuel to the engine, and an electric control circuit including a low-temperature sensor for detecting a low temperature of the engine to produce a first signal capable of actuating the fuel increasing mechanism, and a neutral-gear-condition detector for detecting the neutral-gear-condition of a gear transmission associated with the engine to produce a second signal. The fuel increasing mechanism is inactivated in response to the second signal from the neutral-gear-condition sensor by overriding the low-temperature sensor to prevent the increase of fuel while the gear transmission is in neutral. A second embodiment employs additional sensors for air temperature, engine r.p.m., vehicle speed and the park-condition of an automatic transmission also for controlling the fuel increase.

摘要翻译： 用于增加供给发动机的燃料量的装置包括用于向发动机供给附加量的燃料的燃料增加机构，以及包括用于检测发动机的低温的低温传感器的电气控制电路 产生能够致动燃料增加机构的第一信号，以及用于检测与发动机相关联的齿轮传动装置的空档状态以产生第二信号的空档状态检测器。 通过覆盖低温传感器来响应于来自中性齿轮传动状态传感器的第二信号而使燃料增加机构失活，以防止在齿轮传动处于空档状态时燃料的增加。 第二实施例使用用于空气温度，发动机转速，车速和用于控制燃料增加的自动变速器的驻车状态的附加传感器。

公开(公告)号：US4721084A

公开(公告)日：1988-01-26

申请号：US908854

申请日：1986-09-18

申请人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Minoru Muroya ,  Katsuhiko Kimura ,  Noritaka Kushida ,  Hiroshi Hasebe

发明人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Minoru Muroya ,  Katsuhiko Kimura ,  Noritaka Kushida ,  Hiroshi Hasebe

IPC分类号： B01D53/86 ,  F01N9/00 ,  F02D41/14 ,  G01N27/406 ,  G01N27/417 ,  F02D5/00

CPC分类号： G01N27/417 ,  F02D41/1476 ,  F02D41/1494

摘要： Method for controlling an oxygen concentration sensor for sensing an oxygen concentration in an exhaust gas of an internal combustion engine, which sensor includes an oxygen pump element and a heater element, comprises steps for controlling a pump current and a heat current control in response to a result of a detection of engine load. When the engine is operating in a predetermined high load range, the supply of the pump current to the oxygen pump element is stopped, and the heat current to the heater element is reduced when the engine operation in the high load range has continued for more than a predetermined time period. The heater current to the heater element is stopped when the engine load is in a first predetermined load range, and when the engine operation in a second load range which is lighter than the first load range has continued for a predetermined time period.

摘要翻译： 用于控制用于感测内燃机的排气中的氧浓度的氧浓度传感器的方法，所述内燃机的传感器包括氧气泵元件和加热器元件，包括用于响应于一个或多个泵的电流控制泵电流和热电流控制的步骤 检测发动机负荷的结果。 当发动机在预定的高负载范围内运行时，停止向氧气泵元件供应泵电流，并且当高负载范围内的发动机运转持续超过 预定时间段。 当发动机负载处于第一预定负载范围时，并且当在比第一负载范围更轻的第二负载范围内的发动机运转持续预定时间段时，停止加热器元件的加热器电流。

公开(公告)号：US4665874A

公开(公告)日：1987-05-19

申请号：US909535

申请日：1986-09-22

申请人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Minoru Muroya ,  Katsuhiko Kimura ,  Noritaka Kushida ,  Hiroshi Hasebe

发明人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Minoru Muroya ,  Katsuhiko Kimura ,  Noritaka Kushida ,  Hiroshi Hasebe

IPC分类号： F02D41/14 ,  G01N27/406 ,  G01N27/407 ,  G01N27/417 ,  F02B3/00

CPC分类号： G01N27/407 ,  G01N27/4065 ,  G01N27/417

摘要： An oxygen concentration sensing device and an air/fuel ratio control system for an internal combustion engine which include a pair of solid electrolyte members having oxygen ion permeability which are arranged to face each other to form a restricted region between them. One of the solid electrolyte members is operative as an oxygen pump element when a pump current is supplied across the electrodes thereof. The sensing device is provided with a current supply part including a limit command circuit which generates a current stop command signal when the magnitude of the pump current exceeds a reference limit level. With the current stop command signal, the supply of the pump current is stopped so as to prevent an overcurrent to the oxygen pump element. The air/fuel ratio control system includes an air/fuel ratio detection part and an air/fuel ratio control part operated by an air/fuel ratio detection signal. The detection of the air/fuel ratio and the supply of the pump current are stopped under a predetermined operating condition of the engine.

摘要翻译： 一种用于内燃机的氧浓度检测装置和空/燃比控制系统，包括一对具有氧离子渗透性的固体电解质构件，它们彼此相对地设置以在它们之间形成限制区域。 当泵电流跨过其电极供应时，固体电解质构件中的一个作为氧气泵元件起作用。 感测装置设置有电流供应部分，其包括限制命令电路，当泵电流的大小超过参考极限电平时，产生电流停止命令信号。 利用当前的停止命令信号，停止泵电流的供给，以防止对氧气泵元件的过电流。 空气/燃料比控制系统包括由空/燃比检测信号操作的空/燃比检测部和空/燃比控制部。 在发动机的预定操作条件下停止空燃比的检测和泵电流的供给。

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。

公开(公告)号：US4868756A

公开(公告)日：1989-09-19

申请号：US12319

申请日：1987-02-09

申请人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Katsuhiko Kimura ,  Yasunari Seki ,  Kouji Matsuura ,  Hiroshi Hasebe

发明人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Katsuhiko Kimura ,  Yasunari Seki ,  Kouji Matsuura ,  Hiroshi Hasebe

IPC分类号： B60R16/02 ,  B60R16/023 ,  F16H59/78 ,  F16H61/02 ,  F16H63/42

CPC分类号： B60R16/0236 ,  F16H63/42 ,  F16H59/78 ,  F16H61/0213

摘要： A method for indicating a shift operation for a manual transmission gear includes a step for comparing a detected vehicle speed with a reference speed which is determined and changed on the basis of a detected engine temperature and a step for indicating the shift operation on this basis of a result of the comparison. When a temperature parameter relating to the engine operation is lower than a predetermined reference temperature value, the reference vehicle speed is raised so that the indication of the shift operation will not be generated.

摘要翻译： 一种用于指示手动变速器的换档操作的方法包括以下步骤：将检测到的车速与基于检测到的发动机温度确定和改变的参考速度进行比较，以及用于指示换档操作的步骤 比较的结果。 当与发动机运转有关的温度参数低于规定的基准温度值时，基准车速上升，不会产生变速操作的指示。