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    • 2. 发明授权
    • Control system for internal combustion engines
    • 内燃机控制系统
    • US5752478A
    • 1998-05-19
    • US591380
    • 1996-01-25
    • Hiroshi SonoKen Ogawa
    • Hiroshi SonoKen Ogawa
    • F02B75/18F01L9/04F02D13/02F02D41/00F02D41/34F02D45/00F02F1/42F02B29/00
    • F02D41/009F01L9/04F02D13/0215F02D13/0253F02D41/0002F02D41/345F02D2041/001F02N19/004Y02T10/18Y02T10/42Y02T10/44
    • A control system for an internal combustion engine having a plurality of cylinders each having at least one intake valve, at least one exhaust valve, and a crankshaft. The control system has an electromagnetic driving section which electromagnetically causes opening and closing of at least one of the at least one intake valve and the at least one exhaust valve. A crank angle sensor generates a crank angle signal whenever the crankshaft rotates through a predetermined angle, and a cylinder position sensor generates a cylinder-discriminating signal indicative of a predetermined crank angle of a particular cylinder of a plurality of the cylinders. A piston position sensor detects an operating state or position of the piston of each of the plurality of the cylinders, based on the generated crank angle signal and the generated cylinder-discriminating signal. A CPU starts opening of the at least one of the at least one intake valve and the at least one exhaust valve, based on the detected operating state of the piston.
    • 一种用于内燃机的控制系统,具有多个气缸,每个气缸具有至少一个进气门,至少一个排气阀和曲轴。 所述控制系统具有电磁驱动部,所述电磁驱动部电磁地导致所述至少一个进气门和所述至少一个排气阀中的至少一个的打开和关闭。 每当曲轴旋转预定角度时,曲柄角传感器产生曲柄角信号,并且气缸位置传感器产生指示多个气缸的特定气缸的预定曲柄角的气缸鉴别信号。 活塞位置传感器基于产生的曲柄角信号和产生的气缸判别信号来检测多个气缸中的每一个的活塞的操作状态或位置。 基于检测到的活塞的运行状态,CPU开始至少一个进气门和至少一个排气门中的至少一个的打开。
    • 3. 发明授权
    • Data transmission system for automotive vehicles
    • 汽车数据传输系统
    • US5585788A
    • 1996-12-17
    • US321306
    • 1994-10-11
    • Hiroshi HashimotoYuji Nagatani
    • Hiroshi HashimotoYuji Nagatani
    • B60R16/02B60R16/023H04L12/413H04Q9/00H04Q1/00
    • H04L12/417H04L12/413H04L2012/40273
    • A data transmission system for automotive vehicles in which messages are transmitted by circulating a transmission right signal among a plurality of electronic control units, by a token passing method. Each of the electronic control units judges that the right to transmit a message to the network bus has been acquired when it is determined that the transmission right signal has not been circulated for a predetermined time period, and at the same time an idle state of the network bus has been detected. If a collision of the transmitted message with any other message is detected, the above process is repeated after the lapse of a waiting time period specific to the electronic control unit which judged that the right to transmit a message had been acquired.
    • PCT No.PCT / JP93 / 00473 Sec。 371 1995年10月11日第 102(e)日期1995年10月11日PCT提交1993年4月13日PCT公布。 公开号WO93 / 21713 日期:1993年10月28日一种汽车用数据传输系统,其通过令牌传递方式在多个电子控制单元之间循环发送权信号来发送消息。 当确定发送权信号尚未预定的时间段被循环时,每个电子控制单元判断已经向网络总线发送消息的权利已被获取,并且同时处于 已经检测到网络总线。 如果检测到所发送的消息与任何其他消息的冲突,则在判断出已经获取了发送消息的权利的电子控制单元的特定的等待时间段之后,重复上述处理。
    • 4. 发明授权
    • Air-fuel ratio control system for internal combustion engines
    • 内燃机空燃比控制系统
    • US5473889A
    • 1995-12-12
    • US310887
    • 1994-09-22
    • Yasunori EharKen OgawaJoji Hijikata
    • Yasunori EharKen OgawaJoji Hijikata
    • F02D41/14F01N3/20
    • F02D41/1441F02D41/1456
    • An air-fuel ratio control system for an internal combustion engine detects a central value of an output from a first exhaust gas component concentration sensor arranged in an exhaust passage at a location upstream of a catalytic converter and having an output characteristic which is substantially proportional to the concentration of a component in the exhaust gases. The central value is corrected based on the output from the first exhaust gas component concentration sensor, when an output from a second exhaust gas concentration sensor arranged downstream of the catalytic converter falls within a predetermined range. The output from the first exhaust gas component concentration sensor is corrected based on the corrected central value. An air-fuel ratio of a mixture supplied to the engine is corrected based on the corrected output value from the first exhaust gas component concentration sensor.
    • 用于内燃机的空燃比控制系统检测布置在催化转化器上游位置处的排气通道中的第一排气组分浓度传感器的输出的中心值,并且具有与 废气中组分的浓度。 当来自位于催化转化器下游的第二排气浓度传感器的输出落在预定范围内时,基于来自第一废气组分浓度传感器的输出校正中心值。 基于校正的中心值来校正来自第一排气分量浓度传感器的输出。 基于来自第一排气分量浓度传感器的校正输出值来校正供给到发动机的混合物的空燃比。
    • 7. 发明授权
    • Control system for two opposed solenoid-type electromagnetic valve
    • 两相对电磁式电磁阀的控制系统
    • US5671705A
    • 1997-09-30
    • US733091
    • 1996-10-16
    • Yasushi MatsumotoTakashi SugaiShigeru Yanagisawa
    • Yasushi MatsumotoTakashi SugaiShigeru Yanagisawa
    • F01L9/04F02D13/02
    • F01L9/04F01L2009/0486
    • A control system for an electromagnetic valve having a valve element, a pair of solenoids opposed to each other and disposed to drive the valve element in respective directions opposite to each other and between a first extreme position and a second extreme position, and a spring interposed between the solenoids, for biasing the valve element toward a neutral position intermediate between the first and second extreme positions. The solenoids are controlled such that when the valve element is to start moving from one of the first and second extreme positions toward the other extreme position, energization of a corresponding one of the solenoids is terminated, and energization of the other solenoid is started when a predetermined delay time period elapses from the termination of the corresponding one solenoid. The solenoids are also controlled such that they are both energized over a predetermined lap time period during movement of the valve element from one of the first and second extreme positions toward the other extreme position.
    • 一种用于电磁阀的控制系统,其具有阀元件,一对螺线管,彼此相对并设置成在彼此相反的相反方向以及在第一极限位置和第二极限位置之间驱动阀元件;以及弹簧, 在螺线管之间,用于将阀元件朝向在第一和第二极限位置之间的中间位置偏压。 螺线管被控制,使得当阀元件开始从第一和第二极限位置之一朝向另一极限位置移动时,对应的一个螺线管的通电终止,另一个螺线管的通电在 从相应的一个螺线管的终止经过预定的延迟时间段。 螺线管也被控制成使得它们在阀元件从第一和第二极限位置中的一个朝向另一个极限位置移动期间在预定的卷绕时间段内被通电。
    • 8. 发明授权
    • Exhaust gas recirculation control system for internal combustion engines
    • 内燃机排气再循环控制系统
    • US5551408A
    • 1996-09-03
    • US322193
    • 1994-10-12
    • Daisuke ShimizuKotaro MiyashitaYoshihisa HaraHiroshi Ikeba
    • Daisuke ShimizuKotaro MiyashitaYoshihisa HaraHiroshi Ikeba
    • F02M25/07F02D21/08F02D41/00F02D41/02F02D41/04F02D41/14
    • F02D41/005F02B2275/18F02D41/0077Y02T10/47
    • An exhaust gas recirculation control system for an internal combustion engine includes an exhaust gas recirculation passage extending between the intake system of the engine and the exhaust system thereof, and an exhaust gas recirculation control valve for controlling the flow rate of exhaust gases to be recirculated through the exhaust gas recirculation passage. The system further includes an ECU which calculates a desired air-fuel ratio of a mixture supplied to the engine, based on engine operating conditions detected by engine operating parameter sensors, and also a desired valve opening of the exhaust gas recirculation control valve, based on engine operating conditions detected by the operating parameter sensors and the calculated desired air-fuel ratio. The ECU modifies the calculated desired valve opening by a first predetermined amount, and starts the controlling of the flow rate of exhaust gases to be recirculated by the exhaust gas recirculation control valve, by the use of the modified desired valve opening, when it is determined that the desired air-fuel ratio has been changed from a lean state to a rich state or vice versa.
    • 用于内燃机的排气再循环控制系统包括在发动机的进气系统和排气系统之间延伸的废气再循环通道和用于控制废气再循环通过的排气流量的废气再循环控制阀 排气再循环通道。 该系统还包括ECU,其基于由发动机操作参数传感器检测到的发动机工作条件以及基于排气再循环控制阀的期望阀开度计算供给到发动机的混合物的期望空燃比,基于 由操作参数传感器检测的发动机操作条件和所计算的所需空燃比。 ECU将所计算的所需阀开度改变第一预定量,并且当确定时,通过使用改进的所需阀开度来控制由废气再循环控制阀再循环的废气的流量 期望的空燃比已经从稀薄状态变为浓状态,反之亦然。
    • 10. 发明授权
    • Method of detecting deterioration of exhaust gas ingredient
concentration sensor
    • 检测废气成分浓度传感器劣化的方法
    • US5179929A
    • 1993-01-19
    • US796415
    • 1991-11-22
    • Yukio MiyashitaHiroshi OhnoKunio NoguchiHironao Fukuchi
    • Yukio MiyashitaHiroshi OhnoKunio NoguchiHironao Fukuchi
    • F02D41/14F02D45/00
    • F02D41/1495F02D41/2441F02D41/2454F02D41/248F02B2275/18F02D41/1456F02D41/2448
    • A method of detecting deterioration of an exhaust gas ingredient concentration sensor for use in controlling an air-fuel ratio of a mixture supplied to an internal combustion engine having an exhaust system in which the sensor is arranged. The sensor has an output characteristic approximately proportional to concentration of a specific ingredient in exhaust gases emitted from the engine. The air-fuel ratio is feedback-controlled to a desired air-fuel ratio by calculating an amount of fuel supplied to the engine by the use of a desired air-fuel ratio coefficient indicative of the desired air-fuel ratio and set in dependence on operating conditions of the engine, and an air-fuel ratio correction coefficient set in dependence on a value of an output from the sensor and the desired air-fuel ratio coefficient. A plurality of average values of the air-fuel ratio correction coefficient are calculated, respectively, when the desired air-fuel ratio falls within a plurality of predetermined ranges. The average values thus calculated are compared with each other. A degree of deterioration of the sensor is determined from results of the comparison. Further, a method of feedback-controlling the air-fuel ratio in the above-mentioned manner, in which the value of the output from the sensor is corrected in response to the degree of deterioration thus determined.
    • 一种检测废气成分浓度传感器的劣化的方法,所述废气成分浓度传感器用于控制供给具有布置有所述传感器的排气系统的内燃机的混合物的空燃比。 传感器的输出特性与发动机排放的废气中特定成分的浓度大致成正比。 通过使用表示所需空燃比的期望的空燃比计算燃料供应量来计算空燃比,从而将空燃比反馈控制到所需的空燃比,依照 发动机的工作条件以及根据传感器的输出值和期望的空燃比系数设定的空燃比校正系数。 当期望的空燃比落在多个预定范围内时,分别计算空燃比校正系数的多个平均值。 将这样计算的平均值相互比较。 根据比较结果确定传感器的劣化程度。 此外,以上述方式反馈控制空燃比的方法,其中响应于如此确定的劣化程度校正来自传感器的输出值。