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    • 1. 发明授权
    • Apparatus for learning control of air-fuel ratio of air-fuel mixture in
electronically controlled fuel injection type internal combustion engine
    • 用于学习电控燃油喷射型内燃机空气燃料混合物空燃比控制的装置
    • US4655188A
    • 1987-04-07
    • US768480
    • 1985-08-08
    • Naoki TomisawaShoji FuruhashiSeiichi Otani
    • Naoki TomisawaShoji FuruhashiSeiichi Otani
    • F02B1/04F02D41/14F02M51/00
    • F02D41/2454F02D41/2416F02B1/04
    • In controlling the air-fuel ratio in an air-fuel mixture in an internal combustion engine, a pulse duty signal Tp corresponding to the basic fuel injection quantity is operated at least from the intake air flow quantity Q and the rotation speed N of the engine, a signal of a fuel injection quantity Ti corrected by adding an appropriate correction value to said Tp is applied to a pulse-controlled fuel injection apparatus. Feedback control is carried out so that the actually detected air-fuel ratio is made to follow the aimed air-fuel ratio, and the learning correction coefficient .alpha.o is operated by learning so that the correction coefficient for this feedback control is as small as possible and the operated value is given as a correction value to Tp. Since the reliability of .alpha.o is low in a driving state area where learning is not advanced, .alpha.o of the area where learning is not advanced is estimated from .alpha.o of areas where learning is advanced, whereby control of the air-fuel ratio in the transition stage between different areas is smoothened.
    • PCT No.PCT / JP85 / 00024 Sec。 371日期1985年8月8日第 102(e)1985年8月8日PCT PCT 1月23日,PCT PCT。 第WO85 / 03329号公报 1985年9月日。在控制内燃机的空气燃料混合物中的空燃比时,至少根据进气量Q和运转基准燃料喷射量的脉冲占空比信号Tp 发动机的转速N,通过向所述Tp加上适当的校正值而校正的燃料喷射量Ti的信号被施加到脉冲控制的燃料喷射装置。 进行反馈控制,使实际检测到的空燃比达到目标空燃比,通过学习来操作学习校正系数α0,使得该反馈控制的校正系数尽可能小 并将操作值作为校正值给出。 由于在不进行学习的驾驶状态区域中α0的可靠性低,因此从学习进行的区域的α0估计未学习的区域的αo,从而可以控制空燃比 不同地区之间的过渡阶段平滑。
    • 2. 发明授权
    • Air/fuel ratio control system for an internal combustion engine
    • 用于内燃机的空燃比控制系统
    • US4359029A
    • 1982-11-16
    • US153914
    • 1980-05-28
    • Shoji FuruhashiMasaharu AsanoHideyuki Tamura
    • Shoji FuruhashiMasaharu AsanoHideyuki Tamura
    • F02D41/14F02D41/26F02B3/00
    • F02D41/1479F02D41/1474F02D41/263
    • Disclosed is an air/fuel control system for an internal combustion engine which selectively carries out open loop control and feedback control in which the air/fuel ratio is controlled based on the sensed concentration of an exhaust gas component. The system has a means for generating a variable reference signal corresponding to an exhaust gas sensor output and a means for measuring a period after the air-fuel mixture becomes rich and for generating a signal for switching control operation from feedback control to open loop control. The latter means clears the measured period responsive to interrupting feedback control after the expiration of a given period. This effectively prevents control operation from switching too frequently between feedback control and open loop control.
    • 公开了一种用于内燃机的空气/燃料控制系统,其选择性地执行开环控制和反馈控制,其中基于所检测的排气组分的浓度来控制空气/燃料比。 该系统具有用于产生对应于排气传感器输出的可变参考信号的装置和用于测量空燃混合物变浓之后的周期的装置,以及用于产生用于将控制操作从反馈控制转为开环控制的信号。 后者意味着在给定时间期满之后响应中断反馈控制来清除测量周期。 这有效地防止了控制操作在反馈控制和开环控制之间的频繁切换。
    • 3. 发明授权
    • Anti-skid control method
    • 防滑控制方法
    • US5375919A
    • 1994-12-27
    • US100214
    • 1993-08-02
    • Shoji Furuhashi
    • Shoji Furuhashi
    • B60T8/1764B60T8/34B60T8/42B60T8/50B60T8/58B60T8/32
    • B60T8/1764B60T8/348B60T8/4275B60T8/505B60T8/58
    • An anti-skid control method for an anti-skid control device comprising two pressure medium lines installed between the master cylinder and the return pathway of the pressure medium with an inlet valve, selector valve, and discharge valve arranged in series in each of the two pressure medium lines, a front wheel brake being connected between the inlet valve and the selector valve of each pressure medium line and a diagonally opposite rear wheel brake being connected between the same selector valve and the discharge valve of that pressure medium line, and a control circuit which controls the front and rear wheel brake pressures through the pressure medium lines. The rotational speeds of each front and rear wheel are determined. The state of traction of each front and rear wheel is judged by the control circuit. The appropriate inlet valve, selector valve, discharge valve and combination thereof are activated to control locking and slippage of each front and rear wheel. In addition, the control circuit opens the inlet valves when the selector valves open to increase the brake pressure of the rear wheels to compensate for the accompanying reduction in pressure of the front wheels.
    • 一种用于防滑控制装置的防滑控制方法,包括两个压力介质管线,该压力介质管线安装在主缸和压力介质的返回通道之间,其中具有入口阀,选择阀和排出阀。 压力介质管线,前轮制动器连接在各个压力介质管路的入口阀和选择阀之间,并且对角相对的后轮制动器连接在相同的选择阀和该压力介质管线的排出阀之间,控制 电路,其通过压力介质线控制前轮和后轮制动压力。 确定每个前轮和后轮的转速。 每个前轮和后轮的牵引状态由控制电路判断。 启动适当的入口阀,选择阀,排气阀及其组合,以控制每个前轮和后轮的锁定和滑动。 此外,当选择阀打开时,控制电路打开入口阀,以增加后轮的制动压力,以补偿随后的前轮压力降低。
    • 4. 发明授权
    • Knock detector
    • 敲击探测器
    • US4420967A
    • 1983-12-20
    • US234008
    • 1981-02-12
    • Toshio EnoshimaShoji FuruhashiHideyuki Tamura
    • Toshio EnoshimaShoji FuruhashiHideyuki Tamura
    • G01H17/00F02P5/152G01L23/22
    • G01L23/225F02P5/152Y02T10/46
    • A comparator compares, either before or after being rectified, a signal obtained from the vibration signal representing the vibrations of a spark ignition internal combustion engine and which has passed through a signal transmitting circuit, with a reference level signal from a reference level signal forming circuit to produce a knock signal representing the occurrence of knocking when the former signal is greater in magnitude than the latter. The reference level signal forming circuit rectifies and smooths the vibration signal to produce a rectified smoothed signal, and includes a first amplifying circuit which amplifies the rectified smoothed signal to produce the reference level signal, mentioned above. When the engine speed is above a predetermined value, an engine speed determining circuit produces a drive signal to which a changeover circuit responds by changing the magnitude of at least one of the signal transmitting circuit and the reference level signal forming circuit from one value to another whereby possible knocking occurring in the overall range of higher and lower engine speeds is reliably detected for use in spark timing control in the spark ignition internal combustion engine.
    • 一个比较器在整流之前或之后比较从表示火花点火内燃机的振动并已通过信号传输电路的振动信号获得的信号与来自参考电平信号形成电路的参考电平信号 以产生当前一信号的幅度大于后者时爆震发生的爆震信号。 参考电平信号形成电路对振动信号进行整流平滑以产生经整流的平滑信号,并且包括放大经整流的平滑信号以产生参考电平信号的第一放大电路,如上所述。 当发动机转速高于预定值时,发动机转速确定电路通过将信号发送电路和参考电平信号形成电路中的至少一个的幅度从一个值改变到另一个值来产生转换电路所响应的驱动信号 可靠地检测在火花点火式内燃机的火花正时控制中可以检测到在较高和较低发动机转速的整个范围内发生的可能的爆震。
    • 10. 发明授权
    • Spark timing system for spark ignition internal combustion engine
    • 火花点火内燃机火花定时系统
    • US4382429A
    • 1983-05-10
    • US227639
    • 1981-01-23
    • Toshio EnoshimaShoji FuruhashiHideyuki Tamura
    • Toshio EnoshimaShoji FuruhashiHideyuki Tamura
    • F02P5/152F02P5/153F02P5/04
    • F02P5/1523Y02T10/46
    • A spark timing adjusting circuit receives a basic spark timing signal from a spark timing determining circuit and regulates the spark timing according to a knocking signal from a knocking detector. A speed changing circuit serves to increase the rate of advance of the spark timing after the spark timing has been retarded when the operational state of the engine is in a first predetermined range corresponding to a first speed range in which all the engine speeds are lower than a first predetermined value. The speed changing circuit may include a circuit which decreases the rate of retard of the spark timing when the operational state of the engine is in a second predetermined range corresponding to a second speed range in which all the engine speeds are higher than a second predetermined value which is higher than the first predetermined value, thereby avoiding rapid retardation of the spark timing. Alternatively, the first and second predetermined ranges of the operational state of the engine may be defined with respect to intake manifold vacuum, throttle valve opening or intake air amount to the engine.
    • 火花定时调整电路从火花定时确定电路接收基本火花定时信号,并根据来自爆震检测器的爆震信号来调节火花正时。 当发动机的运转状态处于与所有发动机转速低于第一速度的第一速度范围相对应的第一预定范围时,变速电路用于在火花正时被延迟之后提高火花正时的提前速率 第一预定值。 变速电路可以包括当发动机的操作状态处于与所有发动机转速高于第二预定值的第二速度范围相对应的第二预定范围时降低火花正时延迟速率的电路 其高于第一预定值,从而避免火花正时的快速延迟。 或者,可以关于发动机的进气歧管真空,节气门开度或进气量限定发动机的操作状态的第一和第二预定范围。