公开(公告)号：US4475388A

公开(公告)日：1984-10-09

申请号：US433411

申请日：1982-10-07

申请人： Hisasi Kawai ,  Norihito Tokura ,  Tokio Kohama ,  Kenji Kanehara ,  Takayoshi Ito ,  Kazutaka Hasegawa

发明人： Hisasi Kawai ,  Norihito Tokura ,  Tokio Kohama ,  Kenji Kanehara ,  Takayoshi Ito ,  Kazutaka Hasegawa

IPC分类号： G01F1/68 ,  G01F1/696 ,  G01F1/698 ,  G01F15/04 ,  G01P5/12

CPC分类号： G01F1/698 ,  G01F1/696

摘要： A method for measuring the flow rate of fluid such as liquified petroleum gas fuel for an automobile fuel. A signal of the fluid flow rate and a signal of the fluid temperature are produced by using the signals from an electric heater and a first, second, and third temperature-dependent resistors in a signal processing circuit. The produced signals are supplied to a computer circuit to carry out modification, linearization, and multiplication by a conversion constant for linearization which is corrected regarding temperature characteristic. The result of calculation in the computer circuit is displayed on a display device.

摘要翻译： 一种用于测量汽车燃料液化石油气燃料的流体流量的方法。 通过使用来自电加热器的信号和信号处理电路中的第一，第二和第三温度依赖电阻器来产生流体流速的信号和流体温度的信号。 所产生的信号被提供给计算机电路，以通过针对温度特性校正的线性化的转换常数进行修改，线性化和乘法。 计算机电路中的计算结果显示在显示装置上。

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

IPC分类号： F02D41/02 ,  F02D17/02 ,  F02D41/00 ,  F02D41/36

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。

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

IPC分类号： F02D41/18 ,  G01F1/68 ,  G01F1/698 ,  G01M15/00

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。

公开(公告)号：US4356551A

公开(公告)日：1982-10-26

申请号：US184188

申请日：1980-09-04

申请人： Kazuo Iwase ,  Hisasi Kawai ,  Kunimasa Yoshimura ,  Toshimitsu Ito ,  Yoshiyasu Ito

发明人： Kazuo Iwase ,  Hisasi Kawai ,  Kunimasa Yoshimura ,  Toshimitsu Ito ,  Yoshiyasu Ito

IPC分类号： G01M15/00 ,  F02P5/152 ,  F02P5/153 ,  G01L23/22 ,  F02P5/14 ,  F02P17/00

CPC分类号： G01L23/225 ,  F02P5/1522 ,  Y02T10/46

摘要： A method for detecting knock for an internal combustion engine having a plurality of cylinders in which a vibration sensor is attached to each cylinder and a peak value of vibration detected by the sensor is sampled over a predetermined interval near the top dead center. The sampled value is converted from analog to digital and stored for a predetermined number of sampling times to obtain the average value for each cylinder. Then the frequency of occurrences in which the ratio between the sampled peak value and the average value exceeds a reference value is obtained, and the knock is determined when the frequency of occurrences in any one cylinder exceeds a predetermined value or when the average frequency of occurrences of the all cylinders exceed another predetermined value.

摘要翻译： 一种用于检测具有多个气缸的内燃机的爆震方法，其中在每个气缸上安装有振动传感器，并且在靠近上止点的预定间隔内对由传感器检测的振动的峰值进行采样。 采样值从模拟转换为数字，并存储预定数量的采样时间，以获得每个气缸的平均值。 然后，获得采样峰值与平均值之间的比值超过参考值的出现频率，并且当任何一个气缸中出现的频率超过预定值时或者当出现的平均频率 的全部气缸超过另一个预定值。

公开(公告)号：US4268910A

公开(公告)日：1981-05-19

申请号：US969496

申请日：1978-12-14

申请人： Norio Omori ,  Hideya Fujisawa ,  Yutaka Kawashima ,  Masakazu Ninomiya ,  Hisasi Kawai ,  Takeshi Matsui

发明人： Norio Omori ,  Hideya Fujisawa ,  Yutaka Kawashima ,  Masakazu Ninomiya ,  Hisasi Kawai ,  Takeshi Matsui

IPC分类号： F02P5/152 ,  F02P5/153 ,  G01H17/00 ,  F02P5/14 ,  F02P17/00

CPC分类号： F02P5/1523 ,  Y02T10/46

摘要： The timing of spark ignition is set in normal operating conditions at a programed spark advance angle corresponding to the MBT (minimum spark advance for best torque). When knocking of the engine is detected by a vibration sensor, the ignition timing is delayed by a predetermined amount, e.g., 2.DELTA..theta., for each engine cycle that knocking is detected in synchronism with the rotation of the engine. When knocking is not detected, the ignition timing is advanced by another predetermined amount, for each engine cycle that knocking is not detected. e.g., .DELTA..theta.. In this method for controlling the spark timing, the amount of retardation, 2.DELTA..theta., is selected to be larger than the other amount of advance, .DELTA..theta..

摘要翻译： 火花点火的定时在正常工作条件下设置在与MBT对应的编程火花提前角（最佳转矩最小火花提前）。 当通过振动传感器检测到发动机的爆震时，对于每个发动机循环，点火正时被延迟预定量，例如2TATA，与发动机的旋转同步地检测到爆震。 当未检测到爆震时，对于未检测到爆震的每个发动机循环，点火正时提前另一预定量。 例如DELTAθ。 在这种用于控制火花正时的方法中，延迟量2DELTAθ被选择为大于另一个提前量ΔTATA。

公开(公告)号：US4250855A

公开(公告)日：1981-02-17

申请号：US54432

申请日：1979-07-03

申请人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Kiyoshi Kobashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Hidetaka Nohira

发明人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Kiyoshi Kobashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Hidetaka Nohira

IPC分类号： F02M7/28 ,  F02D41/02 ,  F02D41/24 ,  F02M7/24

CPC分类号： F02D41/28 ,  F02D41/02 ,  F02M7/24

摘要： In a carburetor for an internal combustion engine, a control valve is disposed with an air passage through the carburetor structure to control the flow quantity of air to be mixed with fuel from a float chamber and a pneumatic servo-motor is operatively connected with the control valve to control the opening degree of the valve. The pneumatic pressure applied to the servo-motor is electrically controlled to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed.Pd=f(Pv, N)where the character Pd is the pneumatic pressure applied to the servo-motor, and the characters Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

摘要翻译： 在用于内燃机的化油器中，控制阀设置有通过化油器结构的空气通道，以控制与浮子室与燃料混合的空气的流量，气动伺服电动机与控制器可操作地连接 阀门来控制阀门的开度。 施加到伺服电动机的气压被电控制以满足关于发动机进气歧管真空度和发动机转速的以下功能。 Pd = f（Pv，N）其中字符Pd是施加到伺服电动机的气压，并且字符Pv和N分别表示发动机进气歧管真空度和发动机转速。

公开(公告)号：US4148090A

公开(公告)日：1979-04-03

申请号：US874482

申请日：1978-02-02

申请人： Hisasi Kawai ,  Toshikazu Ina

发明人： Hisasi Kawai ,  Toshikazu Ina

IPC分类号： F16K31/06 ,  F02D41/20 ,  H01F7/18 ,  H03K17/06 ,  H03K17/64 ,  H01H47/04

CPC分类号： F02D41/20 ,  H01F7/1805 ,  H03K17/06 ,  H03K17/64 ,  F02D2041/2003 ,  F02D2041/2013 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2041/2075

摘要： In an apparatus for controlling an electromagnetic valve which is adapted for use with the fuel injection systems of internal combustion engines, after the expiration of a predetermined time the control of the energization of the electromagnetic coil of the electromagnetic valve is changed from constant-voltage control to constant-current control, and any surge voltage caused during the control change is selectively absorbed, thereby ensuring stable energization of the electromagnetic valve despite variations in the supply voltage or the like.

摘要翻译： 在适于与内燃机的燃料喷射系统一起使用的电磁阀的控制装置中，在预定时间期满后，电磁阀的电磁线圈的通电控制从恒定电压控制 进行恒流控制，并且选择性地吸收在控制变化期间引起的任何浪涌电压，从而确保电磁阀的稳定通电，尽管电源电压等的变化。

公开(公告)号：US4001565A

公开(公告)日：1977-01-04

申请号：US579159

申请日：1975-05-20

申请人： Hisasi Kawai

发明人： Hisasi Kawai

IPC分类号： G06F1/02 ,  G05B19/4103 ,  G06F7/62 ,  G06F17/17 ,  G06F15/34

CPC分类号： G06F7/62 ,  G06F17/17

摘要： A digital interpolator in which a value previously stored in a program memory circuit such as an ROM is read out by addressing it with an output of a counter having a predetermined value preset therein, the value read out is accumulated in an accumulator, a control circuit controls the supply of N-1 or N clock pulses to the accumulator and the counter, and the digits in the output of the accumulator which digits are ones located at the digit position whose figure is equal to the exponent of a radix number for operation to denote N and greater digit positions are stored in another memory circuit, whereby the output of the program memory circuit is divided by N and an interpolated value is determined by digital proportional division technique.

公开(公告)号：US4809197A

公开(公告)日：1989-02-28

申请号：US945953

申请日：1986-12-24

申请人： Syuzaburou Tashiro ,  Toshikazu Ina ,  Hisasi Kawai

发明人： Syuzaburou Tashiro ,  Toshikazu Ina ,  Hisasi Kawai

IPC分类号： B60G23/00 ,  B60G17/015 ,  B60G17/0165 ,  G01B7/34 ,  G01P3/44 ,  G01P11/00 ,  G01B5/28

CPC分类号： B60G17/0165 ,  B60G2400/208 ,  B60G2400/82 ,  B60G2500/10 ,  B60G2600/02 ,  B60G2600/12 ,  B60G2600/16

摘要： A road surface detecting device has a circular plate connected with an axle of a vehicle so as to be rotated with said axle, and has a large number of teeth at regular intervals in its outer periphery. A rotary sensor detecting the passage of the teeth of the circular plate, and generates a pulse signal, and a microcomputer receive the pulse signal. The microcomputer calculates instantaneous speeds of a wheel from the period of the pulse signal and calculates an average value of a plurality of instantaneous speeds obtained in the predetermined rotations of a wheel another average value of a plurality of instantaneous speeds obtained in the next predetermined rotations of a wheel is also calculated as a presumed speed of a vehicle based on one and another average values. The microcomputer then calculates an absolute value of a difference between the instantaneous speeds in the predetermined rotations after next of a wheel and the presumed speed of vehicle, cancels an absolute value of an oldest difference every time when an absolute value of a newest difference is obtained, and calculates a successive integrated value by adding absolute values of a predetermined number of differences to one another. The microcomputer determines the road surface condition to be a bad condition when the successive integrated value is not less than a predetermined value or as a good condition when the successive integrated value is not more than the predetermined value.

摘要翻译： 路面检测装置具有与车辆的轴连接的圆板，以便与所述车轴一起旋转，并且在其外周中以规则的间隔具有大量的齿。 检测圆板的齿通过的旋转传感器，产生脉冲信号，微型计算机接收脉冲信号。 微型计算机从脉冲信号的周期计算轮的瞬时速度，并计算在轮的预定转速中获得的多个瞬时速度的平均值，在下一个预定旋转中获得的多个瞬时速度的另一个平均值 还基于一个和另一个平均值，将车轮计算为车辆的推测速度。 然后，微型计算机计算下一轮之后的预定旋转中的瞬时速度与车辆推测速度之间的差值的绝对值，每当获得最新差异的绝对值时，每次抵消最大差异的绝对值 ，并且通过将预定数量的差异的绝对值相加来计算连续积分值。 当连续积分值不小于预定值时，微型计算机将路面状况判断为不良状况，或者当连续积分值不大于预定值时，将其作为良好状态。

公开(公告)号：US4739183A

公开(公告)日：1988-04-19

申请号：US888805

申请日：1986-07-24

申请人： Norihito Tokura ,  Hisasi Kawai

发明人： Norihito Tokura ,  Hisasi Kawai

IPC分类号： B60R16/02 ,  B60R16/03 ,  B60Q1/00

CPC分类号： B60R16/0315 ,  B60R2016/0322 ,  Y10S370/908 ,  Y10T307/484

摘要： Disclosed is a local area network for a vehicle which comprises a plurality of terminal stations each having an input/output port for various signals, a main-loop formed by series connection of the terminal stations and transmission lines, a sub-loop arranged in parallel to the main-loop and formed by series connection of the terminal stations and transmission lines, and controllers. One of the terminal stations receives a large amount of information such as an audio signal from an audio transmitter and one of the other terminal stations supplies a large amount of information such as an audio signal to an audio receiver. When the main-loop is in a normal operation state, the main-loop operates as a token-passing system and the sub-loop acts as a direct transmission route from one of the terminal stations to another terminal station, and when the main-loop is in an abnormal operation state, the main-loop is coupled with the sub-loop and the transmitting of information such as an audio signal is stopped, and simultaneously, the sub-loop is switched to the token-passing system. Thus, the double loops, i.e., the main-loop and the sub-loop, are effectively utilized. In addition, any decrease in the reliability of various signals transmission when a failure of the main-loop occurs, can be prevented.

摘要翻译： 公开了一种用于车辆的局域网，其包括多个终端站，每个终端站具有用于各种信号的输入/输出端口，通过终端站和传输线的串联连接形成的主回路，并行布置的子回路 到主回路并由终端站和传输线以及控制器的串联连接形成。 一个终端站接收来自音频发送器的大量信息，例如音频信号，另一个终端站之一向音频接收机提供诸如音频信号的大量信息。 当主回路处于正常运行状态时，主回路作为令牌传递系统运行，子回路作为从终端站到另一个终端站的直接传输路由， 环路处于异常操作状态，主回路与子回路耦合，并且停止诸如音频信号的信息的发送，并且同时将子回路切换到令牌传递系统。 因此，有效地利用了双回路，即主回路和子回路。 此外，可以防止发生主回路故障时各种信号传输的可靠性的任何降低。