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    • 4. 发明授权
    • Internal combustion engine
    • 内燃机
    • US4335687A
    • 1982-06-22
    • US160616
    • 1980-06-18
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • F02D41/04F02D17/02F02D41/00F02D41/02F02D41/36F02B77/00
    • F02D41/0087
    • An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, pulse generator means for generating, in synchronism with engine rotation, a fuel injection pulse signal of pulse width proportional to the rate of air flow to said engine, and first and second fuel supply means responsive to the fuel injection pulse signal for supplying, into the first and second cylinder units, respectively, a controlled amount of fuel corresponding to the duty ratio of the fuel injection pulse signal. Control means is provided for cutting off the fuel injection pulse signal to the second fuel supply means when the engine load is below a reference level increasing with an increase in engine temperature except when the engine speed is below a given level at open throttle conditions.
    • 公开了一种内燃机,其包括第一和第二气缸单元,每个气缸单元包括至少一个气缸,脉冲发生器装置,用于与发动机旋转同步地产生与向所述发动机的空气流量成比例的脉冲宽度的燃料喷射脉冲信号 以及响应于燃料喷射脉冲信号的第一和第二燃料供应装置,分别向第一和第二气缸单元提供对应于燃料喷射脉冲信号的占空比的受控量的燃料。 提供控制装置,用于当发动机负载低于基准水平时随着发动机温度升高而将燃料喷射脉冲信号切断到第二燃料供给装置,除非当发动机转速低于开启节气门条件时的给定水平时。
    • 6. 发明授权
    • Internal combustion engine
    • 内燃机
    • US4337740A
    • 1982-07-06
    • US160564
    • 1980-06-18
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • Fukashi SugasawaHaruhiko IizukaYukihiro EtohToshiaki Tanaka
    • F02D41/04F02D17/02F02D41/00F02D41/02F02D41/36F02D43/00F02D17/00
    • F02D43/00F02D17/02F02D41/0087
    • An internal combustion engine is disclosed which includes active and inactive cylinders, a load detector adapted to provide a low load indicative signal when the engine load is below a predetermined value, first means responsive to the low load indicative signal for cutting off the flow of air to the inactive cylinders, and second means for supplying a controlled amount of fuel into the active and inactive cylinders so as to achieve a somewhat lean air-fuel mixture therein. The second means is responsive to the low load indicative signal for cutting off the supply of fuel to the inactive cylinders and increasing the amount of fuel supplied to the active cylinders so as to achieve a somewhat rich air-fuel mixture therein. Third means is provided for monitoring the oxygen content of the exhaust from the engine to control the second means so that the fuel supplied to the engine is correct to maintain the stoichiometric air/fuel ratio.
    • 公开了一种内燃机,其包括主动和非活动气缸,负载检测器,其适于在发动机负载低于预定值时提供低负荷指示信号,第一装置响应于低负荷指示信号以切断空气流 以及第二装置,用于将受控量的燃料供应到主动和非活动气缸中,以便在其中实现稍微偏冷的空气 - 燃料混合物。 第二装置响应于低负荷指示信号,用于切断对非活性气缸的燃料供应,并且增加供应到活动气缸的燃料量,以便在其中实现有些浓的空气 - 燃料混合物。 提供第三装置用于监测来自发动机的排气的氧含量以控制第二装置,使得供应到发动机的燃料是正确的,以维持理论空燃比。
    • 10. 发明授权
    • Combined split engine and feedback controlled engine operations
    • 组合分裂发动机和反馈控制发动机操作
    • US4263782A
    • 1981-04-28
    • US052431
    • 1979-06-26
    • Junichiro MatsumotoHaruhiko IizukaFukashi Sugasawa
    • Junichiro MatsumotoHaruhiko IizukaFukashi Sugasawa
    • F02D41/02F01N3/20F01N9/00F01N13/02F02D17/02F02D41/00F02D41/04F02D41/14F02D41/36F01N3/15F02D17/00
    • F02D41/1443F01N13/009F01N3/20F01N9/00F02D41/0087F01N2430/02F01N2430/06Y02T10/47
    • A control system for a multi-cylinder internal combustion engine comprises a split engine control unit for operating the engine on partial cylinders when reduced engine power can adequately operate the vehicle, and first and second exhaust conduits for directing exhaust gases from first and second group cylinders respectively to a common junction to which a common exhaust conduit is connected for directing the gases to the atmosphere. A first set of an exhaust gas sensor and catalytic converter is disposed in the second conduit to be exposed to the stream of gases exhausted from the second group cylinders which are activated at all times and a second set of an exhaust gas sensor and catalytic converter is disposed in the common conduit to be exposed to the stream of gases exhausted from the first group cylinders directed through the first conduit and to the gases passed through the upstream side catalytic converter in the second conduit. Feedback mixture control operation is effected on the basis of the signal from the first exhaust gas sensor during the partial cylinder mode and a full cylinder mode in which the second gas sensor is still below its normal operating temperature. The signal from the second gas sensor is utilized for the feedback operation in the full cylinder mode in which the temperature of the latter sensor is above its normal operating point.
    • 一种用于多气缸内燃机的控制系统,包括用于在减少的发动机功率能够充分地操作车辆时在部分气缸上操作发动机的分体式发动机控制单元,以及用于引导来自第一和第二组气缸的废气的第一和第二排气导管 分别连接到连接有公共排气导管以将气体引导到大气中的公共接头。 第一组废气传感器和催化转化器设置在第二导管中以暴露于从第二组气缸排出的气体,该气体始终被激活,第二组废气传感器和催化转化器是 设置在公共管道中以暴露于从通过第一管道引导的第一组气缸排出的气体流和通过第二管道中的上游侧催化转化器的气体。 基于在部分气缸模式期间来自第一排气传感器的信号和第二气体传感器仍然低于其正常工作温度的全气缸模式进行反馈混合控制操作。 来自第二气体传感器的信号用于全气缸模式中的反馈操作,其中后者传感器的温度高于其正常工作点。