Coarse and fine air supply control for closed-loop controlled carbureted
internal combustion engines
    1.
    发明授权
    Coarse and fine air supply control for closed-loop controlled carbureted internal combustion engines 失效
    用于闭环控制的化油内燃机的粗细和精细的空气供应控制

    公开(公告)号:US4303049A

    公开(公告)日:1981-12-01

    申请号:US55396

    申请日:1979-07-06

    CPC分类号: F02D35/0061 F02M7/24

    摘要: In a closed loop air-fuel mixture control system for carburetor-equipped internal combustion engines, an exhaust gas sensor provides a feedback signal to a control unit where the signal is modified to meet the control characteristics of the closed loop. The modified feedback signal is converted into digital pulses whose width varies with the amplitude of the feedback signal. Additional air is supplied to the engine through an air bleed in accordance with the magnitude of the analog feedback signal to provide a coarse control of air-fuel ratio and in response to the digital pulses to provide a fine control of the ratio. The mixture is controlled in a wide range of ratios to eliminate the need for calibration which would be required for fitting the closed loop system to the time-varying characteristics of individual carburetors.

    摘要翻译: 在用于装载化油器的内燃机的闭环空气燃料混合物控制系统中,排气传感器向控制单元提供反馈信号,其中信号被修改以满足闭环的控制特性。 修改的反馈信号被转换成数字脉冲,其宽度随着反馈信号的幅度而变化。 额外的空气根据模拟反馈信号的大小通过排气被提供给发动机,以提供空燃比的粗略控制,并且响应于数字脉冲以提供比率的精确控制。 将混合物控制在较宽的比例范围内,以消除将闭环系统安装到单个化油器的时变特性所需的校准。

    Closed loop fuel control in accordance with sensed engine operational
condition
    2.
    发明授权
    Closed loop fuel control in accordance with sensed engine operational condition 失效
    根据感测到的发动机运行状况,闭环燃料控制

    公开(公告)号:US4173956A

    公开(公告)日:1979-11-13

    申请号:US852352

    申请日:1977-11-17

    CPC分类号: F02D35/0061

    摘要: An engine operational condition detector detects a mode among several modes, such as an idling state, a steady state and an accelerating state, where a signal is utilized for selectively actuating one of several integrators, each of which has a predetermined time-constant. One of the integrators, when actuated, integrates an output signal of a P-I controller of a closed loop fuel control system, the integrated signal being stored in a capacitor connected across the integrator. Electromagnetic valves disposed in the openings of main air-bleeds of main and slow circuits of a carburetor are energized in accordance with the output signal of each integrator while other electromagnetic valves disposed in the openings of auxiliary air-bleeds of the same are energized in dependence on the output signal of the P-I controller.

    摘要翻译: 发动机操作条件检测器检测诸如怠速状态,稳态和加速状态的几种模式中的模式,其中使用信号来选择性地致动多个积分器中的一个,其中每一个具有预定的时间常数。 其中一个积分器在被驱动时,集成了闭环燃料控制系统的P-I控制器的输出信号,该积分信号被存储在跨越积分器的电容器中。 设置在化油器的主要和慢速回路的主要空气出口的开口中的电磁阀根据每个积分器的输出信号被激励,而其中设置在辅助空气出口的开口中的其他电磁阀依次通电 对PI控制器的输出信号。

    System and method for self diagnosing an engine control system
    3.
    发明授权
    System and method for self diagnosing an engine control system 失效
    用于自动诊断发动机控制系统的系统和方法

    公开(公告)号:US5140961A

    公开(公告)日:1992-08-25

    申请号:US639873

    申请日:1991-01-11

    IPC分类号: F02D41/22 F02P17/12

    CPC分类号: F02P17/12 F02D41/221

    摘要: A system and method for self diagnosing an engine controlling system such as an ignition system, fuel injection system, and an EGR (Exhaust Gas Recirculation) system are disclosed in which a periodic pseudo random signal is superposed on a control signal such as an ignition signal, fuel injection signal, or EGR rate controlled value indicating signal during an engine steady state condition, a cross-correlation function is calculated from both the superposed periodic random signal and output signal related to deterioration of the engine controlling system, and a value related to the cross-correlation function is compared with a reference value over which a performance of the engine controlling system cannot be maintained. If the value related to the cross-correlation function exceeds the reference value, the diagnostic system determines the occurrence of deterioration in the engine controlling system. The output related to the deteroration of the engine controlling system is, for example, a number of occurrences of misfiring determined according to change in engine revolutional speed. The periodic pseudo random signal is, for example, an M-series sequence signal. In the case of a diagnostic system for an EGR system the value related to the cross-correlation function may be, for example, a step response.

    摘要翻译: 公开了一种用于自动诊断诸如点火系统,燃料喷射系统和EGR(废气再循环)系统的发动机控制系统的系统和方法,其中周期性伪随机信号叠加在诸如点火信号的控制信号上 ,燃料喷射信号或EGR率控制值指示信号,在发动机稳态条件下,从叠加周期性随机信号和与发动机控制系统的劣化相关的输出信号两者计算互相关函数,以及与 将互相关函数与引擎控制系统的性能不能维持的参考值进行比较。 如果与互相关函数相关的值超过参考值,则诊断系统确定发动机控制系统的劣化的发生。 与发动机控制系统的驱动有关的输出是例如根据发动机转速的变化确定的多次发生的失火。 周期性伪随机信号例如是M序列信号。 在用于EGR系统的诊断系统的情况下,与互相关函数相关的值可以是例如阶跃响应。

    System and method for controlling ignition timing to suppress engine
knocking using periodic pseudo random signal
    4.
    发明授权
    System and method for controlling ignition timing to suppress engine knocking using periodic pseudo random signal 失效
    使用周期性PSEUDO随机信号控制点火时间来抑制发动机闭锁的系统和方法

    公开(公告)号:US5158057A

    公开(公告)日:1992-10-27

    申请号:US636787

    申请日:1991-01-02

    IPC分类号: F02P5/152 F02P5/153

    CPC分类号: F02P5/152 Y02T10/46

    摘要: A system and method for controlling ignition timing for an internal combustion engine to suppress engine knocking in which a periodic pseudo random signal (for example, M-series sequence signal) is superimposed on an ignition signal provided at an ignition timing, and a cross-correlation function between the periodic pseudo random signal .chi. and a knocking signal y is calculated to determine an actual knocking level. The ignition timing is then corrected so that the cross-correlation function coincides with a target value which is defined as a value placed in a vicinity of a knocking limit. The ignition timing for the engine is controlled so as to reach the value in the vicinity of the knocking limit but does not exceed the knocking limit.

    摘要翻译: 一种用于控制内燃机的点火正时以抑制发动机爆震的系统和方法,其中周期性伪随机信号(例如,M序列信号)叠加在点火正时提供的点火信号上, 计算周期性伪随机信号chi和敲门信号y之间的相关函数以确定实际的敲击电平。 然后校正点火正时,使得互相关函数与被定义为设置在爆震极限附近的值的目标值一致。 控制发动机的点火正时以达到爆震极限附近的值但不超过爆震极限。

    POWER MANAGEMENT SYSTEM AND POWER MANAGEMENT METHOD
    6.
    发明申请
    POWER MANAGEMENT SYSTEM AND POWER MANAGEMENT METHOD 有权
    电力管理系统和电力管理方法

    公开(公告)号:US20130173075A1

    公开(公告)日:2013-07-04

    申请号:US13576518

    申请日:2012-06-18

    IPC分类号: G05F5/00

    摘要: A power management system includes: customer terminals; and a power management apparatus connected to the customer terminals, wherein each of the customer terminals includes a weather forecast acquisition unit that acquires a local weather forecast for a corresponding customer terminal, and a power prediction unit that predicts a power consumption and an amount of power that can be reduced for a predetermined period based on the weather forecast, and the power management apparatus includes an integration processing unit that integrates the power consumptions and the amounts of power that can be reduced that are predicted for the respective customer terminals to calculate a total power consumption and a total amount of power that can be reduced for all of the customer terminals.

    摘要翻译: 电源管理系统包括:客户终端; 以及连接到客户终端的电力管理装置,其中每个客户终端包括获取相应客户终端的本地天气预报的天气预报获取单元,以及预测功率消耗和功率量的功率预测单元 可以基于天气预报减少预定时间段,并且电力管理装置包括集成处理单元,其将功耗和对各个客户终端预测的能够减少的功率量进行积分,以计算总计 功耗以及所有客户终端可以减少的总功率。

    Card interface device
    9.
    发明授权
    Card interface device 失效
    卡接口设备

    公开(公告)号:US07123487B2

    公开(公告)日:2006-10-17

    申请号:US10448388

    申请日:2003-05-30

    IPC分类号: H05K7/14 H05K7/18

    CPC分类号: G06K13/0875 G06K7/0013

    摘要: In a structure where the lid portion is mounted on the main housing body comprising apertures and in such a manner as to turn freely thereon, the concave lock portion and the locking protrusion adjacent thereto capable of locking the lid in the closed state are located in the aperture side of the main housing body. The lid portion is provided with the hooking piece comprising the spring portion and the arc-shaped protrusion. When the lid portion turns to open or close the aperture portion, the arc-shaped protrusion comes into contact with the locking protrusion under pressure with the spring portion, in order that a force opposing to the turning direction may be applied thereto before and after it passes through the locking protrusion, to keep the lid portion in two states i.e. the open state and the closed state.

    摘要翻译: 在其中盖部分安装在包括孔的主壳体上并且以其在其上自由转动的方式的结构中,与其相邻的凹形锁定部分和锁定突起能够将盖锁定在关闭状态的位置位于 主壳体的孔径侧。 盖部分设置有包括弹簧部分和弧形突起的钩形件。 当盖部分转动打开或关闭开口部分时,弧形突起在弹簧部分的压力下与锁定突起接触,以便在其前后施加与转动方向相反的力 通过锁定突起,以保持盖部分处于打开状态和关闭状态两种状态。