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公开(公告)号：US4489695A
公开(公告)日：1984-12-25
申请号：US343365
申请日：1982-01-27
申请人： Tokio Kohama , Seizi Huzino , Hideki Obayashi , Hisasi Kawai , Tsuneyuki Egami
发明人： Tokio Kohama , Seizi Huzino , Hideki Obayashi , Hisasi Kawai , Tsuneyuki Egami
CPC分类号： F02D17/02 , F02D41/0087
摘要： The number of working cylinders of the internal combustion engine is controlled so that the load of the internal combustion engine is relatively increased thereby to keep the combustion effect within an expected range. By controlling the number of working cylinders of the internal combustion engine also to other than integral numbers, the torque control of large freedom is continuously effected. Thus the torque characteristic is smoothed, thus improving the fuel efficiency and driveability at the same time.
摘要翻译： 控制内燃机的工作气缸的数量，使得内燃机的负荷相对增加，从而将燃烧效果保持在预期的范围内。 通过将内燃机的工作气缸的数量也控制在整数以外，可以连续地实现大自由度的转矩控制。 因此扭矩特性平滑，从而同时提高燃油效率和驾驶性能。
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公开(公告)号：US4434767A
公开(公告)日：1984-03-06
申请号：US333781
申请日：1981-12-23
申请人： Tokio Kohama , Seizi Huzino , Hideki Obayashi , Hisasi Kawai , Tsuneyuki Egami
发明人： Tokio Kohama , Seizi Huzino , Hideki Obayashi , Hisasi Kawai , Tsuneyuki Egami
CPC分类号： F02D41/0087
摘要： In the range where the fuel efficiency may be improved by relatively increasing the load of working cylinders at the time of partial loading of a multicylinder internal combustion engine, the intake pressure of the engine is maintained at a fixed optimum value. Also, the number of working cylinders is controlled, so that a torque actually required by the driver is obtained, and under any load, the maximum improvement of fuel efficiency may be attained at a saving of fuel consumption.
摘要翻译： 在通过在多缸内燃机的部分负载时相对增加工作气缸的负荷可以提高燃料效率的范围内，将发动机的进气压力维持在固定的最佳值。 此外，控制工作缸的数量，从而获得驾驶员实际需要的转矩，并且在任何负载下，可以在节省燃料消耗的情况下实现燃料效率的最大提高。
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公开(公告)号：US4391132A
公开(公告)日：1983-07-05
申请号：US301448
申请日：1981-09-11
申请人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
发明人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
CPC分类号： F02D41/187 , G01F1/68 , G01F1/698
摘要： A gas flow measuring apparatus includes first and second temperature dependent resistors located in a gas tube respectively downstream and upstream of an electric heater which is also located in the gas tube. The first and second temperature dependent resistors are connected to form a bridge circuit together with first and second reference resistors. Between a pair of diagonal junctions of the bridge circuit, a potential difference is produced depending on the flow rate of the gas and the power supplied to the electric heater, and a measuring circuit controls the power supplied to the electric heater so that the potential difference is maintained at a predetermined value irrespective of a change in flow rate of the gas. The measuring circuit includes a chopper circuit to convert the potential difference into a square wave having a peak-to-peak value substantially equal to the potential difference and having a center reference level of the square wave corresponding to a voltage level determined by a reference voltage generator and an adder circuit. The square wave from the chopper circuit is then amplified and half rectified and applied to a sample-hold circuit to produce a voltage signal representative of the potential difference. A differential amplifier having two inputs of the voltage signal from the sample-hold circuit and a predetermined voltage produces an output signal which is used to control the power supplied to the electric heater. A current flowing into the electric heater is used to determine the flow rate of the gas.
摘要翻译： 气体流量测量装置包括位于气体管中的第一和第二温度相关电阻器，分别位于气体管中的电加热器的下游和上游。 连接第一和第二温度依赖电阻器以与第一和第二参考电阻器一起形成桥接电路。 在桥式电路的一对对角接头之间，根据气体的流量和供给到电加热器的功率产生电位差，并且测量电路控制提供给电加热器的电力，使得电位差 维持在预定值，而与气体的流量变化无关。 测量电路包括斩波电路，以将电位差转换成具有基本上等于电位差的峰 - 峰值的方波，并且具有对应于由参考电压确定的电压电平的方波的中心参考电平 发生器和加法器电路。 然后将来自斩波电路的方波放大一半，并将其整流并施加到采样保持电路以产生代表电位差的电压信号。 具有来自采样保持电路的电压信号的两个输入和预定电压的差分放大器产生用于控制提供给电加热器的功率的输出信号。 使用流入电加热器的电流来确定气体的流量。
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公开(公告)号：US4425792A
公开(公告)日：1984-01-17
申请号：US376133
申请日：1982-05-07
申请人： Tokio Kohama , Hideki Obayashi , Hisasi Kawai , Tsuneyuki Egami
发明人： Tokio Kohama , Hideki Obayashi , Hisasi Kawai , Tsuneyuki Egami
CPC分类号： G01F1/69
摘要： In a fluid flow rate measuring apparatus having a sensor including an electric heater resistance wire and first and second temperature dependent resistance wires and a measuring circuit, each of the resistance wires is wound to be held firmly in place on a supporting member made of an electrical insulating material, and the electric heater resistance wire and the first temperature dependent resistance wire, which is responsive to the temperature of the fluid under measurement heated by the electric heater resistance wire, are wound on the same supporting member alternately and close to each other so that the winding direction thereof makes an angle from 60.degree. to 120.degree. to the direction of the flow of the fluid under measurement. Further, each of the supporting members is constructed and arranged so as to minimize the influence of the heat capacity thereof and also to avoid the occurrence of turbulence in the flow of the fluid which is detrimental to the flow rate measurement. This construction can provide a fluid flow rate measuring apparatus having high precision, improved response and elevated reliability.
摘要翻译： 在具有包括电加热器电阻丝和第一和第二温度依赖性电阻丝的传感器和测量电路的流体流量测量装置中，每个电阻线被卷绕以牢固地保持在由电气制成的支撑部件上的适当位置 绝缘材料和电加热器电阻丝和第一温度依赖性电阻丝，其响应于由电加热器电阻丝加热的被测量流体的温度，彼此交替地彼此缠绕在相同的支撑件上，所以 其卷绕方向与被测流体的流动方向成60°到120°的角度。 此外，每个支撑构件被构造和布置成使得其热容的影响最小化，并且还避免了流体流动中的湍流的发生，这对流量测量是不利的。 该结构可以提供具有高精度，改进的响应和提高的可靠性的流体流量测量装置。
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公开(公告)号：US4200843A
公开(公告)日：1980-04-29
申请号：US865114
申请日：1977-12-28
申请人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
发明人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
CPC分类号： G06G7/30
摘要： A non-linear operational circuit with reference voltage sources and switching means, wherein the output voltage of the operational circuit is compared with the reference voltages to open and close the switching means in accordance with their magnitudes relative to one another and thereby to non-linearly vary the output voltage of the operational circuit in response to changes in the input voltage. The reference voltage sources and the switching means are connected in series between the output terminal and the ground terminal of the operational circuit, whereby at the inflection point at which the ratio of the change in the output voltage of the operational circuit to the change in the input voltage changes, the output voltage is caused to change continuously.
摘要翻译： 一种具有参考电压源和开关装置的非线性运行电路，其中将运算电路的输出电压与参考电压进行比较，以根据它们相对于彼此的幅度打开和闭合开关装置，从而非线性地 响应于输入电压的变化，改变操作电路的输出电压。 参考电压源和开关装置串联在操作电路的输出端子和接地端子之间，由此在操作电路的输出电压的变化比与其中的变化的拐点 输入电压变化，输出电压不断变化。
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公开(公告)号：US4089214A
公开(公告)日：1978-05-16
申请号：US809041
申请日：1977-06-22
申请人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
发明人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
CPC分类号： F02D41/24 , F02D41/187 , G01F1/68 , G01F1/684 , G01F1/6986
摘要： An intake air amount detecting system includes a branch pipe disposed in the intake manifold of the engine and having two passages each provided therein with a temperature responsive resistor. One of the two passages is provided with an electric heater and a voltage is applied to the electric heater so that the temperature difference in the two passages measured by the two temperature responsive resistors is maintained at a predetermined value irrespective of the amount of air flow through the intake manifold. An A-D converter is further provided and includes a time constant circuit and a capacitor for producing across the capacitor a reference voltage which has a waveform representing a predetermined relationship between the voltage applied to the electric heater and the amount of intake air flow. The voltage actually applied to the heater is compared with the reference voltage at a voltage comparater in the A-D converter and the A-D converter produces a pulse signal having a time width corresponding to a period from the rise of the reference voltage until the reference voltage reaches the actual voltage, and hence corresponding to the amount of intake air flow.
摘要翻译： 进气量检测系统包括设置在发动机的进气歧管中的分支管，并且具有两个通道，每个通道中设置有温度响应电阻器。 两个通道中的一个设置有电加热器，并且向电加热器施加电压，使得由两个温度响应电阻器测量的两个通道中的温差保持在预定值，而不管空气流通量 进气歧管。 进一步提供A-D转换器，并且包括时间常数电路和用于在电容器两端产生参考电压的电容器，该参考电压具有表示施加到电加热器的电压与进气量之间的预定关系的波形。 将实际施加到加热器的电压与AD转换器中的电压比较器处的参考电压进行比较，并且AD转换器产生具有对应于从参考电压的升高直到参考电压达到的时间段的时间宽度的脉冲信号 实际电压，因此对应于进气流量。
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公开(公告)号：US4067233A
公开(公告)日：1978-01-10
申请号：US776292
申请日：1977-03-10
申请人： Hideki Obayashi , Tokio Kohama , Hisasi Kawai , Tsuneyuki Egami
发明人： Hideki Obayashi , Tokio Kohama , Hisasi Kawai , Tsuneyuki Egami
CPC分类号： F02D41/28 , F02D41/187 , G01F1/684 , G01F1/698
摘要： A thermally-sensitive resistor is positioned in each of two separate passages provided in the intake pipe of an internal combustion engine, and an electric heater is positioned upstream of one of the thermally-sensitive resistors with respect to the direction of flow of intake air. The thermally-sensitive resistors form, along with two reference resistors, a bridge circuit which converts the difference between the resistances of the thermally-sensitive resistors caused by the electric heater, i.e., the difference between the temperatures in the passages to a voltage difference. A control circuit controls the voltage across the electric heater in such a manner that the said voltage difference is maintained constant and thus the amount by weight of intake air can be directly obtained. The input voltages to the thermally-sensitive resistors are applied in the form of pulses through an oscillator circuit thereby reducing the problem of drift of the bridge circuit.
摘要翻译： 热敏电阻器位于设置在内燃机的进气管中的两个分离通道的每一个中，并且电加热器相对于进气的流动方向位于热敏电阻器之一的上游。 热敏电阻与两个参考电阻器一起形成桥接电路，其将由电加热器引起的热敏电阻器的电阻之间的差异即通道中的温度之间的差转换成电压差。 控制电路以使得所述电压差保持恒定的方式控制电加热器两端的电压，从而可以直接获得进气量。 通过振荡电路以对脉冲的形式施加对感热电阻的输入电压，从而减小了桥接电路的漂移问题。
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公开(公告)号：US4437345A
公开(公告)日：1984-03-20
申请号：US363450
申请日：1982-03-30
申请人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
发明人： Tsuneyuki Egami , Hisasi Kawai , Tokio Kohama , Hideki Obayashi
CPC分类号： G01F1/698
摘要： A gas flow measuring device has a measuring circuit for measuring the flow of gas based on the output signals of an electric heater and a first and a second temperature dependent resistor. In the measuring circuit, the first and the second temperature dependent resistors, together with first and second reference resistors, form a bridge and a constant voltage is applied to a voltage at one diametrical point of the bridge. The difference between the other voltage of the diametrical point of the bridge and the output of the constant voltage adding circuit is amplified, and the output voltage of the amplifier circuit is further amplified so that the voltage applied to the electric heater and the bridge is feed-back controlled.
摘要翻译： 气体流量测量装置具有测量电路，用于根据电加热器和第一和第二温度依赖电阻器的输出信号测量气体流量。 在测量电路中，第一和第二温度依赖电阻与第一和第二参考电阻一起形成桥，并且恒定电压被施加到桥的一个直径点处的电压。 桥的直径点的其他电压与恒压电路的输出之间的差异被放大，并且放大器电路的输出电压被进一步放大，使得施加到电加热器和桥的电压被馈送 回控制
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公开(公告)号：US4417471A
公开(公告)日：1983-11-29
申请号：US324152
申请日：1981-11-23
申请人： Hisasi Kawai , Tsuneyuki Egami , Tokio Kohama , Hideki Obayashi
发明人： Hisasi Kawai , Tsuneyuki Egami , Tokio Kohama , Hideki Obayashi
CPC分类号： G01F1/698
摘要： A first temperature dependent resistor and a second temperature dependent resistor are disposed within a single gas passage defined by a branch pipe extending into a conduit for a gas whose flow rate is to be measured. An electric heater is located between these temperature dependent resistors and is heated for the purpose of measurement of the flow rate of the gas. A first reference resistor and a second reference resistor constitute a bridge circuit together with the first and second temperature dependent resistors, and the difference between the potentials at the terminals of the bridge circuit is amplified by a first differential amplifier circuit. The difference between the output voltage of the first differential amplifier circuit and a predetermined reference voltage is then amplified by a second differential amplifier circuit. The output of the second differential amplifier circuit is amplified by a power amplifier, and the output of the power amplifier is used to control the current or voltage supplied to the electric heater.
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公开(公告)号：US4414847A
公开(公告)日：1983-11-15
申请号：US286344
申请日：1981-07-23
申请人： Tokio Kohama , Hisasi Kawai , Hideki Obayashi , Tsuneyuki Egami
发明人： Tokio Kohama , Hisasi Kawai , Hideki Obayashi , Tsuneyuki Egami
摘要： A gas flow rate measuring apparatus for measuring the intake air flow rate of an automobile engine or the like is disclosed, which comprises a flow rate measuring tube containing an electric heater resistance wire and two temperature-dependent resistance wires, one subject to the effect of heat of the electric heater and the other free from the effect. An output signal of a voltage divider circuit including the series-connected temperature-dependent resistance wires is used to measure the gas flow rate. The electric heater resistance wire and the temperature-dependent resistance wire thermally affected thereby are wound side by side but avoiding occurrence of any short-circuit therebetween on a single support member of an electrically insulating material.
摘要翻译： 公开了一种用于测量汽车发动机等的进气流量的气体流量测量装置，其包括含有电加热器电阻丝和两个温度依赖性电阻丝的流量测量管，其中一个受到影响 电加热器的热量和其他免热效果。 使用包括串联连接的温度依赖性电阻丝的分压器电路的输出信号来测量气体流量。 电加热器电阻丝和受热影响的耐温度电阻丝并排缠绕，但是避免在电绝缘材料的单个支撑构件上发生短路。
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