公开(公告)号：US4715350A

公开(公告)日：1987-12-29

申请号：US818637

申请日：1986-01-14

申请人： Tomohiko Kawanabe ,  Noritaka Kushida ,  Masahiko Asakura ,  Yasunari Seki

发明人： Tomohiko Kawanabe ,  Noritaka Kushida ,  Masahiko Asakura ,  Yasunari Seki

IPC分类号： F02M23/04 ,  F02D35/00 ,  F02D41/14

CPC分类号： F02D35/003 ,  F02D41/1486 ,  F02D41/1456

摘要： An air intake side secondary air supply system for an internal combustion engine having an air intake system using a carburetor and an air intake side secondary air supply passage leading to the downstream of the carburetor, includes an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas. A control means for controlling a duty ratio of opening and closing of an open/close valve disposed in the air intake side secondary air supply passage in accordance with a result of comparison between the level of the output signal of the oxygen concentration sensor and a level corresponding to a target air-fuel ratio. The target air-fuel ratio is up-dated in response to at least two parameters indicative of the engine operation.

摘要翻译： 具有使用化油器的进气系统和通向化油器下游的进气侧二次空气供给通路的内燃机的吸气侧二次空气供给系统包括：氧浓度传感器，其产生电平为 基本上与废气的氧气浓度成正比。 一种控制装置，用于根据氧浓度传感器的输出信号的电平与电平之间的比较结果来控制设置在进气侧二次空气供给通道中的开/关阀的打开和关闭的占空比 对应于目标空燃比。 响应于指示发动机操作的至少两个参数，目标空燃比被更新。

公开(公告)号：US4763265A

公开(公告)日：1988-08-09

申请号：US826467

申请日：1986-02-05

申请人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Noritaka Kushida ,  Yasunari Seki ,  Takanori Shiina ,  Minoru Muroya

发明人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Noritaka Kushida ,  Yasunari Seki ,  Takanori Shiina ,  Minoru Muroya

IPC分类号： F02D31/00 ,  F02D41/30 ,  F02B3/00

CPC分类号： F02D41/3005 ,  F02D31/005 ,  F02D2011/102 ,  F02D2041/2027 ,  F02D2200/0406

摘要： An air intake side secondary air supply system for an internal combustion engine having an air intake side secondary air supply system includes an oxygen concentration sensor, and controls a duty ratio of opening and closing of an open/close valve disposed in the air intake side secondary air supply passage by determining a valve open period within each duty cycle of control operation in accordance with a result of comparison between the level of the output signal of the oxygen concentration sensor and a level corresponding to a target air-fuel ratio. The duty ratio of opening and closing of the open/close valve is maintained within a predetermined duty ratio range so as to improve effectiveness of the control of the secondary air supply as well as to avoid the generation of over lean or over rich mixture.

摘要翻译： 具有进气侧二次空气供给系统的内燃机的进气侧二次空气供给系统具有氧浓度传感器，并且控制配置在吸气侧二次侧的开闭阀的开闭的占空比 通过根据氧浓度传感器的输出信号的电平与目标空燃比的电平之间的比较的结果来确定控制操作的每个占空比内的阀打开时段的空气供给通道。 打开/关闭阀的打开和关闭的占空比保持在预定的占空比范围内，以提高二次空气供应的控制的有效性，并避免产生过度的或超过浓的混合物。

公开(公告)号：US4870586A

公开(公告)日：1989-09-26

申请号：US202862

申请日：1988-06-06

申请人： Masahiko Asakura ,  Takanori Shiina ,  Masahiro Ueda ,  Shinichi Kubota ,  Tomohiko Kawanabe ,  Noritaka Kushida ,  Minoru Muroya

发明人： Masahiko Asakura ,  Takanori Shiina ,  Masahiro Ueda ,  Shinichi Kubota ,  Tomohiko Kawanabe ,  Noritaka Kushida ,  Minoru Muroya

IPC分类号： F02D35/00 ,  F02D41/14

CPC分类号： F02D35/003 ,  F02D41/1475 ,  F02D41/1456

摘要： An air-fuel ratio control system for an internal combustion engine mounted on a vehicle with a transmission, including an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas, effects a feedback control of the air-fuel ratio of mixture to be supplied to the engine toward a target value determined on the basis of various parameters of the engine operation and corrected in response to a magnitude of atmospheric pressure, so that the higher a shift position of the transmission gear is, the leaner the target air-fuel ratio becomes. Thus, the fuel consumption in a light load operating condition of the engine is decreased and the driveability of the vehicle is improved.

摘要翻译： 一种用于安装在具有变速器的车辆上的内燃机的空燃比控制系统，包括氧浓度传感器，其产生与废气的氧浓度基本成比例的输出信号，其实现空气的反馈控制 - 将要向发动机提供的混合物的燃料比达到基于发动机运转的各种参数确定的目标值并且响应于大气压力的大小而被校正，使得变速齿轮的换档位置越高， 目标空燃比变得越来越细。 因此，发动机的轻负载运转状态下的燃料消耗减少，车辆的驾驶性提高。

公开(公告)号：US4752883A

公开(公告)日：1988-06-21

申请号：US781042

申请日：1985-09-27

申请人： Masahiko Asakura ,  Noritaka Kushida ,  Katsuhisa Amano ,  Hiroshi Hasebe ,  Tomohiko Kawanabe ,  Masahiro Ueda ,  Takanori Shiina

发明人： Masahiko Asakura ,  Noritaka Kushida ,  Katsuhisa Amano ,  Hiroshi Hasebe ,  Tomohiko Kawanabe ,  Masahiro Ueda ,  Takanori Shiina

IPC分类号： F16H59/44 ,  F16H59/48 ,  F16H59/70 ,  F16H61/02 ,  F16H63/42 ,  B60K41/08 ,  G07C5/08 ,  G09B19/16

CPC分类号： F16H63/42 ,  F16H59/48 ,  F16H61/0213 ,  F16H2063/426 ,  F16H59/44 ,  F16H59/70

摘要： A method for directing an up shift operation for a vehicle having an engine and a manual transmission generates a direction of an up-shift operation when the vehicle speed exceeds a reference speed determined for each gear position. The reference speed of a medium speed gear is varied according to the degree of acceleration at the time of the previous up-shift operation. If the up-shift operation from a low speed gear to the medium speed gear is effected while the vehicle is not accelerating rapidly, the reference speed for an up shift operation from the medium speed gear is lowered. Further, if a cruising state of the vehicle with the medium speed gear after the acceleration is continued for more than a predetermined time period, the reference speed for an up-shift operation from the medium speed gear is also lowered.

摘要翻译： 一种用于引导具有发动机和手动变速器的车辆的上变速操作的方法，当车速超过为每个档位确定的基准速度时，产生升档操作的方向。 中速齿轮的基准速度根据先前的向上换档操作时的加速度而变化。 如果在车辆不快速加速时实现从低速档向中速齿轮的升档操作，则从中速齿轮进行升档操作的基准速度降低。 此外，如果在加速之后具有中速齿轮的车辆的巡航状态持续超过预定时间段，则从中速齿轮进行升档操作的基准速度也降低。

公开(公告)号：US4842711A

公开(公告)日：1989-06-27

申请号：US124377

申请日：1987-11-20

申请人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Noritaka Kushida

发明人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Noritaka Kushida

IPC分类号： F02D41/14 ,  F02D41/00 ,  G01N27/406 ,  G01N27/416 ,  G01N27/417

CPC分类号： G01N27/417 ,  G01N27/4065

摘要： A device for detecting the air-fuel ratio of an engine by measuring an oxygen concentration of the exhaust gas by means of an oxygen sensor including an oxygen pump and a cell element for measuring the oxygen concentration ratio, comprising an air-fuel ratio detecting circuit which reads the output signal of the oxygen sensor and effects the detection of the air-fuel ratio when TDC signal has been produced, depending upon the operation of the engine, and a time previously set by a timer has passed.

摘要翻译： 一种用于通过包括氧气泵和用于测量氧浓度比的电池元件的氧传感器测量排气的氧浓度来检测发动机的空燃比的装置，包括空燃比检测电路 其读取氧传感器的输出信号，并且根据发动机的操作而产生TDC信号时的空燃比的检测，并且由计时器先前设定的时间已经过去。

公开(公告)号：US4706637A

公开(公告)日：1987-11-17

申请号：US843951

申请日：1986-03-25

申请人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Noritaka Kushida ,  Hiroshi Hasebe

发明人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Noritaka Kushida ,  Hiroshi Hasebe

IPC分类号： G01N27/419 ,  F02D41/14 ,  G01N27/406 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/417 ,  F02M23/06 ,  F02M23/08

CPC分类号： G01N27/417 ,  G01N27/4065

摘要： An oxygen concentration sensing device for use in an air-fuel ratio control system of an internal combustion engine includes a pair of solid electrolyte members having oxygen ion permeability which are disposed in the exhaust gas of the engine and arranged to face each other forming a predetermined gap portion between them. Each of the solid electrolyte members is provided with a pair of electrodes. One of the solid electrolyte members is operative as an oxygen pump element when a predetermined constant electric current is supplied across the electrodes thereof. An electric potential developed across the electrodes of the other one of the solid electrolyte members operative as a cell element is supplied to a comparing means in which the input signal from the solid electrolyte member is compared with a predetermined reference potential and a result of comparison is provided as an oxygen concentration detection signal. In an application of the oxygen concentration sensing device according to the invention in an air-fuel ratio control system, the magnitude of the constant current supplied to the oxygen pump element is varied with the value of a target air-fuel ratio which is controlled in response to various operational parameters of the engine.

摘要翻译： 用于内燃机的空燃比控制系统的氧浓度检测装置包括一对具有氧离子渗透性的固体电解质构件，其设置在发动机的排气中并相对于彼此相对配置，形成预定的 它们之间的间隙部分。 每个固体电解质构件设置有一对电极。 当在其电极之间提供预定的恒定电流时，固体电解质构件中的一个作为氧气泵元件工作。 将作为电池元件操作的另一个固体电解质构件的电极上的电位产生的电位被提供给比较装置，其中来自固体电解质构件的输入信号与预定的参考电位进行比较，并且比较结果为 作为氧浓度检测信号提供。 在根据本发明的氧浓度检测装置在空燃比控制系统中的应用中，供给氧泵元件的恒定电流的大小随着目标空燃比的值而变化 响应发动机的各种操作参数。

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：US4705012A

公开(公告)日：1987-11-10

申请号：US807716

申请日：1985-12-11

申请人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Noritaka Kushida ,  Takanori Shiina ,  Minoru Muroya

发明人： Tomohiko Kawanabe ,  Masahiko Asakura ,  Noritaka Kushida ,  Takanori Shiina ,  Minoru Muroya

IPC分类号： F02D35/00 ,  F02D41/14 ,  F02M23/04

CPC分类号： F02D35/003 ,  F02D41/1488 ,  F02D41/1456

摘要： An air intake side secondary air supply system for an internal combustion engine has an air intake system using a carburetor and an air intake side secondary air supply passage leading downstream of the carburetor. The passage includes an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas. A control means for controlling a flow control valve is disposed in the air intake side secondary air supply passage and operates in accordance to the output signal of the oxygen concentration sensor. In a variation of the invention, the feedback control of air-fuel ratio using the output signal of the oxygen concentration sensor is effected only when the engine operational state is in a predetermined operational region.

摘要翻译： 用于内燃机的进气侧二次空气供应系统具有使用化油器的进气系统和引导在化油器下游的进气侧二次空气供给通道。 通道包括产生输出信号的氧浓度传感器，其输出信号的电平基本上与废气的氧浓度成比例。 用于控制流量控制阀的控制装置设置在进气侧二次空气供给通道中，并且根据氧浓度传感器的输出信号进行操作。 在本发明的变型中，仅当发动机工作状态处于预定操作区域时，才使用氧浓度传感器的输出信号进行空燃比的反馈控制。

公开(公告)号：US4694803A

公开(公告)日：1987-09-22

申请号：US819454

申请日：1986-03-10

申请人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Masahiro Ueda ,  Shinichi Kubota ,  Noritaka Kushida ,  Yukihiro Matsumoto

发明人： Masahiko Asakura ,  Tomohiko Kawanabe ,  Masahiro Ueda ,  Shinichi Kubota ,  Noritaka Kushida ,  Yukihiro Matsumoto

IPC分类号： F02B1/02 ,  F02D41/14 ,  F02B3/00

CPC分类号： F02D41/1487 ,  F02B1/02

摘要： An air-fuel ratio control system for an internal combustion engine, including an oxygen concentration sensor producing an output signal whose level is substantially proportional to an oxygen concentration of the exhaust gas, effects a feedback control of the air-fuel ratio of mixture to be supplied to the engine toward a target value determined on the basis of various parameters of the engine operation and corrected in response to a magnitude of atmospheric pressure, so that the target air-fuel ratio is made lean as the magnitude of the atmospheric pressure decreases. Thus, the reduction of the engine output power and the increase of the fuel comsumption which have been encountered in conventional systems are prevented.

摘要翻译： 用于内燃机的空燃比控制系统包括氧浓度传感器，该氧浓度传感器产生与废气氧浓度基本成比例的输出信号，其混合物的空燃比反馈控制为 提供给发动机朝向基于发动机操作的各种参数确定的目标值并且响应于大气压力的大小而被校正的目标值，使得当大气压力的大小减小时，使目标空燃比变为稀薄。 因此，防止在常规系统中遇到的发动机输出功率的降低和燃料消耗的增加。

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。