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1. 发明授权

US4501140A Fuel injection rate deducing system for a diesel engine 失效
标题翻译：柴油机燃油喷射率推算系统
公开(公告)号：US4501140A
公开(公告)日：1985-02-26
申请号：US428221
申请日：1982-09-29
申请人： Toyoaki Nakagawa , Masao Nakajima , Yoshihisa Kawamura , Nobukazu Kanesaki
发明人： Toyoaki Nakagawa , Masao Nakajima , Yoshihisa Kawamura , Nobukazu Kanesaki
IPC分类号： G01F1/00 , F02B3/06 , F02D21/08 , F02D35/00 , F02D41/40 , F02M41/12 , F02M55/00 , F02M65/00 , G01F1/708 , G01F9/00 , F02M59/00
CPC分类号： G01F1/7088 , F02D41/408 , F02M41/126 , F02M55/00 , F02M65/005 , F02B3/06 , F02D41/0065 , F02M55/007 , Y02T10/44
摘要： A fuel injection rate deducing system for a diesel engine includes a fuel injection pump and a fuel feed pump. The injection pump has an inlet, an outlet, and an overflow outlet. The outlet is connected to the engine to conduct fuel from the injection pump to the engine to effect fuel injection. The overflow outlet is internally connected to the inlet. A fuel feed line is connected to the inlet to conduct fuel to the injection pump. The feed pump is disposed in the feed line to drive fuel into the injection pump via the feed line. A fuel return line connects the overflow outlet to the feed line at a position upstream of the feed pump. At least some of the fuel conducted to the injection pump via the inlet exits from the injection pump via the overflow outlet and then all enters the feed pump via the return line and the feed line. A flowmeter measures the rate of fuel flow through the feed line upstream of the connection of the return line to the feed line. The measured results are used to indicate the rate of fuel injection via the injection pump.
摘要翻译：柴油发动机的燃料喷射率推算系统包括燃料喷射泵和燃料供给泵。注射泵具有入口，出口和溢流出口。出口连接到发动机以将燃料从喷射泵引导到发动机以实现燃料喷射。溢流出口内部连接到入口。燃料供给管线连接到入口以将燃料引导到注射泵。进料泵设置在进料管线中，以通过进料管线将燃料驱动到喷射泵中。燃料回流管线在供给泵的上游位置将溢流出口连接到进料管线。经由入口传导到注射泵的至少一些燃料经由溢流出口从注射泵排出，然后经由返回管线和进料管线进入进料泵。流量计测量通过返回管线连接到进料管线上游的进料管线的燃料流量。测量结果用于指示通过喷射泵的燃油喷射速率。

2. 发明授权

US4446840A Exhaust gas recirculation control system for internal combustion engine 失效
标题翻译：内燃机排气再循环控制系统
公开(公告)号：US4446840A
公开(公告)日：1984-05-08
申请号：US441036
申请日：1982-11-12
申请人： Toyoaki Nakagawa , Masao Nakajima , Yoshihisa Kawamura , Giichi Shioyama
发明人： Toyoaki Nakagawa , Masao Nakajima , Yoshihisa Kawamura , Giichi Shioyama
IPC分类号： F02B3/06 , F02D21/08 , F02D43/00 , F02M25/07 , F02M25/06
CPC分类号： F02D41/005 , F02B3/06 , F02D2041/0017 , Y02T10/47
摘要： An E.G.R. control system for a diesel engine is disclosed wherein a deterioration in combustion is avoided upon depressing an accelerator pedal for reacceleration after the momentary release of the accelerator pedal. An E.G.R. control unit is responsive to a load indicative signal from a load sensor and a revolution signal from a revolution sensor and generates an engine operating state indicative signal indicating that the engine operates in low load state which requires high E.G.R. flow rate. A monostable circuit, a delay circuit and a logic circuit make up a circuit means for preventing a throttle valve from being closed until the engine keeps operating in the low load state for a time longer than a predetermined time.
摘要翻译：一个E.G.R. 公开了一种用于柴油发动机的控制系统，其中在加速器踏板瞬时释放之后，在踩下用于再加速的加速踏板时，避免了燃烧的劣化。一个E.G.R. 控制单元响应来自负载传感器的负载指示信号和来自旋转传感器的转数信号，并产生指示发动机在要求高E.G.R.的低负载状态下工作的发动机运转状态指示信号。流量。单稳态电路，延迟电路和逻辑电路构成用于防止节流阀闭合直到发动机在低负载状态下工作超过预定时间的电路装置。

3. 发明授权

US4452217A Exhaust gas recirculation control system for a diesel engine and control method therefor 失效
标题翻译：柴油发动机废气再循环控制系统及其控制方法
公开(公告)号：US4452217A
公开(公告)日：1984-06-05
申请号：US441038
申请日：1982-11-12
申请人： Yoshihisa Kawamura , Giichi Shioyama , Toyoaki Nakagawa , Masao Nakajima
发明人： Yoshihisa Kawamura , Giichi Shioyama , Toyoaki Nakagawa , Masao Nakajima
IPC分类号： F02M25/07 , F02B3/06 , F02D9/02 , F02D11/10 , F02D21/08 , F02D41/00 , F02M25/06
CPC分类号： F02D9/02 , F02D11/10 , F02D41/005 , F02M26/57 , F02M26/64 , F02B3/06 , F02D2009/0276 , Y02T10/47
摘要： In an exhaust gas recirculation control system in which a fuel injection quantity is determined on the basis of engine speed and engine load, a throttle-closed range is determined on the basis of engine speed and fuel injection quantity. An exhaust gas recirculation control valve has an electromagnetically operable valve actuator, the duty cycle of which is controlled by a control signal. The duty cycle of the valve actuator is variable in accordance with engine operational condition either in or out of the throttle-closed range. An electromagnetically operated actuator is associated with the throttle valve for controlling the operation of the latter. The actuator is operable between a throttle-open position and a throttle-closed position to operate the throttle valve depending on whether the engine operation conditions are within or out of the throttle-closed range.
摘要翻译：在其中基于发动机转速和发动机负荷确定燃料喷射量的排气再循环控制系统中，基于发动机转速和燃料喷射量来确定节气门关闭范围。排气再循环控制阀具有电磁可操作的阀致动器，其工作周期由控制信号控制。阀门执行器的占空比根据发动机运行状态可变，不管是在油门关闭范围还是在油门关闭范围内。电磁操作的致动器与节流阀相关联，用于控制后者的操作。致动器可在节气门打开位置和节气门关闭位置之间操作，以根据发动机操作条件是否在节气门关闭范围内或之外操作节气门。

4. 发明授权

US4609292A Device and method for measuring a temperature difference 失效
标题翻译：用于测量温差的装置和方法
公开(公告)号：US4609292A
公开(公告)日：1986-09-02
申请号：US430727
申请日：1982-09-30
申请人： Masaharu Asano , Yoshihisa Kawamura , Toyoaki Nakagawa
发明人： Masaharu Asano , Yoshihisa Kawamura , Toyoaki Nakagawa
IPC分类号： F02D45/00 , F02B77/08 , G01K3/14 , G01K7/00 , G01M15/00 , G01K13/00
CPC分类号： F02B77/08 , G01K3/14 , Y02T10/166
摘要： A device and method for measuring a temperature difference at different positions which cancels offset voltages produced by a temperature sensitive element, e.g., a thermocouple used in the device and the device itself. The device comprises: (a) an amplifier for receiving and amplifying the output signal produced by the temperature sensitive element and output ting a voltage corresponding to a sensed temperature difference; (b) a comparator for determining that the output signal of the temperature sensitive element should be zero level by sensing a condition that the temperature difference between the two different positions is zero; (c) a memory for storing the value of the voltage of the amplifying means outputted when the comparator determines that the output signal of the temperature sensitive element should be at a zero level; and (d) means for subtracting the stored voltage value in the memory from the current output voltage value of the amplifier so as to obtain a modified output voltage value accurately corresponding to the current temperature difference free from offset voltage errors.
摘要翻译：用于测量在不同位置处的温度差的装置和方法，其消除由温度敏感元件（例如装置中使用的热电偶和装置本身）产生的偏移电压。该装置包括：（a）放大器，用于接收和放大由温度敏感元件产生的输出信号并输出对应于感测温度差的电压; （b）比较器，用于通过感测两个不同位置之间的温度差为零的条件来确定温度敏感元件的输出信号应为零电平; （c）存储器，用于存储当比较器确定温度敏感元件的输出信号应处于零电平时输出的放大装置的电压值; 以及（d）用于从放大器的当前输出电压值减去存储器中存储的电压值的装置，以便获得与没有偏移电压误差的当前温度差精确对应的修正的输出电压值。

5. 发明授权

US4669440A Fuel injection detecting system for a diesel engine 失效
标题翻译：柴油机燃油喷射检测系统
公开(公告)号：US4669440A
公开(公告)日：1987-06-02
申请号：US437680
申请日：1982-10-29
申请人： Sadao Takase , Yoshihisa Kawamura , Toyoaki Nakagawa
发明人： Sadao Takase , Yoshihisa Kawamura , Toyoaki Nakagawa
IPC分类号： F02B3/06 , F02D41/20 , F02D41/40 , F02M65/00 , F02M39/00
CPC分类号： F02D41/401 , F02D41/20 , F02M65/005 , F02B3/06 , F02D2200/063 , F02D41/2096 , Y02T10/44
摘要： A fuel injection detecting system is used with a diesel engine having a fuel injection nozzle, the nozzle including a movable member for effecting fuel injection into the engine when the valve member is displaced from its normal position and interrupting fuel injection when the valve member is returned to its normal position. The detecting system includes a sensor for sensing displacement of the valve member and generating a signal indicative thereof. A comparator is provided to compare the signal from the sensor with a reference signal and to generate a signal indicative of fuel injection via the nozzle. The detecting system also includes a device for preventing the fuel injection signal from including components unrelated to fuel injection via the nozzle. This device may disable the sensor for a predetermined period immediately after the first major displacement of the valve member. Alternatively, the device may adjust the reference voltage so as to hold the voltage thereof at a level exceeding that of all features of the sensor signal except the signal largest peak during each fuel injection.
摘要翻译：燃料喷射检测系统与具有燃料喷射喷嘴的柴油发动机一起使用，该喷嘴包括可动构件，用于当阀构件从其正常位置移位时进行燃料喷射并在阀构件返回时中断燃油喷射到正常位置。检测系统包括用于感测阀构件的位移并产生指示其的信号的传感器。提供比较器以将来自传感器的信号与参考信号进行比较，并产生指示经由喷嘴的燃料喷射的信号。检测系统还包括用于防止燃料喷射信号包括经由喷嘴与燃料喷射无关的部件的装置。该装置可以在阀构件的第一主要位移之后立即禁用传感器达预定的时间。或者，器件可以调整参考电压，以便在每次燃料喷射期间除了信号最大峰值之外，将其电压保持在超过传感器信号的所有特征的电压。

6. 发明授权

US4471653A Crank angle detecting device for an internal combustion engine and detecting method therefor 失效
标题翻译：用于内燃机的曲柄角检测装置及其检测方法
公开(公告)号：US4471653A
公开(公告)日：1984-09-18
申请号：US461124
申请日：1983-01-26
申请人： Yoshihisa Kawamura , Toyoaki Nakagawa
发明人： Yoshihisa Kawamura , Toyoaki Nakagawa
IPC分类号： F02P17/04 , F02D41/34 , F02M65/00 , F02P7/077 , G01M15/00
CPC分类号： F02D41/009 , F02P7/0775 , F02D41/0097
摘要： A device for determining a crank shaft angular position performs operation for determining the crank shaft angular position at an occurrence of timing control in an internal combustion engine control, such as fuel injection timing control, spark ignition timing control and so forth. In determination of the crank shaft angular position, an angular acceleration is firstly calculated with respect to respective intervals of crank reference angle signals. In calculation, the determined angular acceleration is regarded as constant instead of an angular velocity. At the same time, time intervals between respectively adjacent crank reference signals and between one of crank reference signal and a timing control signal immediately following to the one of crank reference angle signal are measured. Based on the determined angular acceleration and the time interval between the one of crank reference angle signal and the timing control signal, the crank shaft angular position at the occurrence of the timing control signal is determined. This may provide determination of the crank shaft angular position precisely following to the actual crank shaft angular position even when the engine revolutional fluctuation is significant.
摘要翻译：用于确定曲柄轴角位置的装置执行在内燃机控制中的定时控制发生时确定曲柄轴角位置的操作，例如燃料喷射正时控制，火花点火正时控制等。在确定曲柄轴角度位置时，首先根据曲柄参考角度信号的各个间隔计算角加速度。在计算中，所确定的角加速度被认为是恒定的而不是角速度。同时，测量相应的曲柄参考信号之间和曲柄参考信号之一之间的时间间隔和紧跟在曲柄参考角度信号之后的定时控制信号。基于确定的角加速度和曲柄参考角度信号与定时控制信号之间的时间间隔，确定出现定时控制信号时的曲轴角位置。即使当发动机转动波动很大时，也可以精确地跟随实际的曲柄轴角度位置来确定曲轴角度位置。

7. 发明授权

US5065716A Fuel supply control system for internal combustion engine with improved engine acceleration characterisitcs after fuel cut-off operation 失效
标题翻译：燃油切断运行后内燃机燃油供应控制系统改进发动机加速特性
公开(公告)号：US5065716A
公开(公告)日：1991-11-19
申请号：US327550
申请日：1989-03-23
申请人： Toyoaki Nakagawa , Hatsuo Nagaishi
发明人： Toyoaki Nakagawa , Hatsuo Nagaishi
IPC分类号： F02D41/00 , F02D41/04 , F02D41/10 , F02D41/12 , F02D41/34
CPC分类号： F02D41/105 , F02D41/047 , F02D41/126
摘要： A fuel supply control system performs asynchronous fuel injection in response to acceleration demand for injecting a controlled amount of fuel irrespective of an engine revolution cycle. The amount of fuel for asynchronous injection in an engine transition state from engine decelerating state, in which fuel cut-off is performed, to engine acceleration state, is determined on the basis of a set value which is a latched fuel injection upon initiation of fuel cut-off operation, and an instantaneous fuel injection amount derived on the basis of the instantaneous fuel injection control parameters. The set value is modified in relation to an amount of fuel left on a periphery of an induction system.

8. 发明授权

US5060473A System for detecting deterioration of catalyst in catalytic converter 失效
标题翻译：用于检测催化转化器催化剂劣化的系统
公开(公告)号：US5060473A
公开(公告)日：1991-10-29
申请号：US379134
申请日：1989-07-13
申请人： Toyoaki Nakagawa
发明人： Toyoaki Nakagawa
IPC分类号： F01N9/00 , F01N11/00
CPC分类号： F01N9/00 , F01N11/002 , F01N2550/02 , Y02T10/47
摘要： A system for detecting deterioration of a catalyst monitors temperature of catalyst. The system sets a temperature criterion which represents possible lowest temperature when the catalyst is in a normal condition. Abnormality of the catalyst is detected by detecting the catalyst temperature lower than the temperature criterion.
摘要翻译：用于检测催化剂劣化的系统监测催化剂的温度。该系统设定了当催化剂处于正常状态时可能的最低温度的温度标准。通过检测催化剂温度低于温度标准来检测催化剂的异常。

9. 发明授权

US4592325A Air/fuel ratio control system 失效
标题翻译：空/燃比控制系统
公开(公告)号：US4592325A
公开(公告)日：1986-06-03
申请号：US726586
申请日：1985-04-23
申请人： Toyoaki Nakagawa
发明人： Toyoaki Nakagawa
IPC分类号： F02D41/00 , F02D41/04 , F02D41/14 , F02D41/24 , F02D43/00
CPC分类号： F02D41/1489 , F02D41/2454
摘要： An air/fuel ratio control system uses an oxygen sensor with which the air/fuel ratio of rich fuel mixture is measured. In this system, a feedforward control of the air/fuel ratio is executed even under operating condition when the engine operates on the rich fuel mixture, and a feedforward control of the air/fuel ratio is executed to enrich the fuel mixture at acceleration in accordance with a control data table which is subject to change after learning during the engine operation.
摘要翻译：空气/燃料比控制系统使用测量富燃料混合物的空气/燃料比的氧传感器。在该系统中，即使在发动机对富燃料混合物进行动作的情况下，即使在运转状态下也执行空燃比的前馈控制，并且执行空燃比的前馈控制，以使加燃料混合物按照具有在发动机操作期间学习之后可能改变的控制数据表。

10. 发明授权

US06278280B1 Battery inactivation detection device 有权
标题翻译：电池灭活检测装置
公开(公告)号：US06278280B1
公开(公告)日：2001-08-21
申请号：US09311630
申请日：1999-05-14
申请人： Hideaki Horie , Toyoaki Nakagawa , Mikio Kawai , Yuji Tanjo , Takaaki Abe , Ken Iwai
发明人： Hideaki Horie , Toyoaki Nakagawa , Mikio Kawai , Yuji Tanjo , Takaaki Abe , Ken Iwai
IPC分类号： G01N27416
CPC分类号： G01R31/3658 , B60L11/1851 , G01R31/007 , G01R31/3648 , H01M6/5044 , H01M10/482 , H01M2200/00 , Y02T10/7005 , Y02T10/705
摘要： A cell which has become inactive is detected in a multi-cell battery (15) comprising plural cells (Cn). An inactivity detecting circuit comprising a signal generator (Dn1) and a diode (Dn2) connected in series, is connected in parallel with the cell (Cn) When the cell becomes inactive, the signal generator (Dn1) emits a signal to indicate the state of the cell. Hence, it is possible to economically detect loss of cell activity.
摘要翻译：在包含多个单元（Cn）的多单元电池（15）中检测到已变为无效的单元。包括串联连接的信号发生器（Dn1）和二极管（Dn2）的不活动检测电路与单元（Cn）并联连接。当单元变为无效时，信号发生器（Dn1）发出指示状态的信号的细胞。因此，可以经济地检测细胞活性的损失。

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