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21. 发明授权

US4760829A Fuel control apparatus for a fuel injection system of an internal combustion engine 失效
标题翻译：一种用于内燃机的燃料喷射系统的燃料控制装置
公开(公告)号：US4760829A
公开(公告)日：1988-08-02
申请号：US46640
申请日：1987-05-07
申请人： Yoshiaki Kanno , Katsuya Nakamoto , Jiro Sumitani
发明人： Yoshiaki Kanno , Katsuya Nakamoto , Jiro Sumitani
IPC分类号： F02D41/14 , F02D41/00 , F02D41/04 , F02D41/18 , F02D41/24 , F02D41/34 , F02M51/00
CPC分类号： F02D41/28 , F02D41/045 , F02D41/185
摘要： A fuel control apparatus for a fuel injection system of an internal combustion engine has an air flow sensor for sensing the air flow rate into the air intake pipe of the engine and producing an electrical output having a frequency which is proportional to the air flow rate, and a crank angle sensor for producing an electrical output pulse each time the crankshaft of the engine is at a prescribed crank angle. A load detector detects the number of output pulses from the air flow sensor between consecutive output pulses of the crank angle sensor, and an air flow rate calculator calculates the actual intake air flow rate into the cylinders of the engine based on the output of the load detector. A controller controls the supply of fuel to fuel injectors for the engine based on the output of the calculator. The load detector includes a frequency divider which performs frequency division of the output from the air flow sensor when the load exceeds a prescribed level.
摘要翻译：一种用于内燃机的燃料喷射系统的燃料控制装置具有用于感测进入发动机的进气管的空气流量的空气流量传感器，并产生具有与空气流量成比例的频率的电气输出，以及每当发动机的曲轴处于规定的曲柄角时产生电输出脉冲的曲轴转角传感器。负载检测器检测来自曲轴转角传感器的连续输出脉冲之间的空气流量传感器的输出脉冲数，空气流量计算器基于负载的输出来计算进入发动机气缸的实际进气流量探测器。控制器基于计算器的输出来控制对发动机的燃料喷射器的燃料供应。负载检测器包括分频器，当负载超过规定水平时，分频器对空气流量传感器的输出进行分频。

22. 发明授权

US4724816A Fuel control device for internal combustion engine 失效
标题翻译：内燃机燃油控制装置
公开(公告)号：US4724816A
公开(公告)日：1988-02-16
申请号：US043728
申请日：1987-04-29
申请人： Yoshiaki Kanno , Katsuya Nakamoto , Jiro Sumitani
发明人： Yoshiaki Kanno , Katsuya Nakamoto , Jiro Sumitani
IPC分类号： F02D41/20 , F02B75/02 , F02D41/00 , F02D41/06 , F02D41/34 , F02D41/36 , F02D41/02
CPC分类号： F02D41/345 , F02D41/064 , F02B2075/027 , Y02T10/44
摘要： Each of fuel injectors associated with respective cylinders of an internal combustion engine is driven several times for each air-intake with narrow drive pulses during the engine at low temperature is in a starting stage.
摘要翻译：在低温期间的发动机处于起始阶段，与内燃机的各个气缸相关联的每个燃料喷射器对于具有窄驱动脉冲的每个进气口被驱动多次。

23. 发明授权

US4462373A Air-to-fuel ratio control method and apparatus 失效
标题翻译：空燃比控制方法和装置
公开(公告)号：US4462373A
公开(公告)日：1984-07-31
申请号：US407363
申请日：1982-08-11
申请人： Yoshiaki Kanno
发明人： Yoshiaki Kanno
IPC分类号： F02D33/00 , F02D41/14 , F02D41/18 , F02D5/00
CPC分类号： F02D41/1474 , F02D41/1491 , F02D41/185
摘要： A method and apparatus for controlling an air-to-fuel ratio of an internal combustion engine in which the air-to-fuel ratio is maintained within a predetermined control width or range even if one or more of the sensors which detect the conditions of the engine necessary to compute the desired air-to-fuel ratio fail. An air flow sensor produces an output signal having a frequency determined in accordance with the air flow rate into the engine, an oxygen sensor disposed in the exhaust manifold of the engine detects whether the air-to-fuel is lean or rich, and a coolant temperature sensor detects the coolant temperature of the engine. Transitions in the output from the oxygen sensor are used to control the integrating direction of an integrator circuit composed of an up/down counter. A predetermined number of integration values are averaged to compute upper and lower limits of the controlled ratio. To perform the integration, a timer is started by output pulses from the air flow rate sensor after having been preset with a digital value determined in accordance with the outputs of the air flow rate sensor and the coolant sensor. Clock pulses for the timer are supplied from a frequency divider, the frequency division ratio of which is set by the integration value if the integration value falls within the control width or range, and by upper and lower limits if the integration value is outside of the control range.
摘要翻译：一种用于控制内燃机的空燃比的方法和装置，其中空燃比保持在预定控制宽度或范围内，即使一个或多个传感器检测到计算所需空燃比所需的发动机失效。空气流量传感器产生具有根据进入发动机的空气流量确定的频率的输出信号，设置在发动机的排气歧管中的氧气传感器检测空气燃料是稀薄还是富有，并且冷却剂温度传感器检测发动机的冷却液温度。氧传感器输出的转换用于控制由升/降计数器组成的积分电路的积分方向。将预定数量的积分值平均以计算受控比的上限和下限。为了执行积分，在已经根据空气流量传感器和冷却剂传感器的输出确定的数字值预设了来自空气流量传感器的输出脉冲之后启动定时器。定时器的时钟脉冲从分频器提供，如果积分值落在控制宽度或范围内，其分频比由积分值设置，并且如果积分值在控制范围。

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