Magnetostriction type torque sensor
    1.
    发明授权
    Magnetostriction type torque sensor 失效
    磁致伸缩式扭矩传感器

    公开(公告)号:US4887461A

    公开(公告)日:1989-12-19

    申请号:US211259

    申请日:1988-06-24

    IPC分类号: G01L3/10

    CPC分类号: G01L3/102 F16H59/16 G01L3/105

    摘要: A torque sensor for use in automotive transmissions includes first and second sets of grooves define first and second sets of elongate projections which are respectively subject to compression and elongation when the shaft in which they are defined, is subject to torque. Two yoked coils which are excited with an alternating current, are each disposed close to a set of projections. The compression and elongation of the projections changes the amount of magnetic flux which flows along the projections and therefore the inductance of the coils. The coils form part of a bridge circuit which is sensitive to the change in inductance in a manner which enables the amount of torque to be measured.

    摘要翻译: 用于汽车变速器的转矩传感器包括第一组槽和第二组槽,限定第一组和第二组细长突起,当限定它们的轴受扭矩时,其分别经受压缩和伸长。 两个用交流电激励的绕线圈分别靠近一组突起设置。 突起的压缩和伸长改变沿着突起流动的磁通量,并因此改变线圈的电感。 线圈形成桥接电路的一部分,其以使得能够测量的转矩量的方式对电感的变化敏感。

    Magnetostriction type torque sensor
    2.
    发明授权
    Magnetostriction type torque sensor 失效
    磁致伸缩式扭矩传感器

    公开(公告)号:US4942771A

    公开(公告)日:1990-07-24

    申请号:US206722

    申请日:1988-06-15

    IPC分类号: G01L3/10

    CPC分类号: G01L3/102 G01L3/105

    摘要: First and second sets of grooves define first and second sets of elongate projections which are respectively subject to compression and elongation when the shaft in which they are defined, is subject to torque. Two yoked coils which are excited with an alternating current, are each disposed close to a set of projections. The compression and elongation of the projections changes the amount of magnetic flux which flows along the projections and therefore the inductance of the coils. The coils form part of a bridge circuit which is sensitive to the change in inductance in a manner which enables the amount of torque to be measured.

    摘要翻译: 第一组和第二组凹槽限定第一组和第二组细长突起,当它们被限定的轴受到扭矩时,其分别经受压缩和伸长。 两个用交流电激励的绕线圈分别靠近一组突起设置。 突起的压缩和伸长改变沿着突起流动的磁通量,并因此改变线圈的电感。 线圈形成桥接电路的一部分,其以使得能够测量的转矩量的方式对电感的变化敏感。

    System and method for self diagnosing an engine control system
    4.
    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。

    Coarse and fine air supply control for closed-loop controlled carbureted
internal combustion engines
    5.
    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
    6.
    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。

    Method of and apparatus for controlling air/fuel ratio in internal
combustion engine
    7.
    发明授权
    Method of and apparatus for controlling air/fuel ratio in internal combustion engine 失效
    内燃机空燃比控制方法及装置

    公开(公告)号:US4107920A

    公开(公告)日:1978-08-22

    申请号:US631313

    申请日:1975-11-12

    摘要: A method of and apparatus for controlling the air-to-fuel ratio of a combustible mixture in an internal combustion engine of the particular type using mixture control means arranged to regulate the air-to-fuel mixture within a predetermined relatively high range for the purpose of enabling an exhaust cleaning catalytic reactor to perform its maximum function, characterized in that the air-to-fuel ratio is reduced, viz., the mixture is enriched during highly loaded operational conditions of the engine by supplying additional fuel to the mixture supply system of the engine, temporarily disabling the mixture control means during such conditions or diluting the exhaust gases during high load conditions of the engine so that the control means is caused to operate in such a manner as to compensate for the reduced concentration of air in the exhaust gases.

    摘要翻译: 使用混合控制装置来控制特定类型的内燃机中的可燃混合物的空燃比的方法和装置,该混合物控制装置被布置成在预定的相对较高的范围内将空气燃料混合物调节到该目的 使废气净化催化反应器能够发挥其最大功能,其特征在于,降低空气 - 燃料比,即,通过向混合物供应系统供应额外的燃料,在发动机的高负载运行条件下,混合物被富集 在发动机的高负载条件期间暂时禁用混合物控制装置,或者在发动机的高负载条件下稀释废气,使得控制装置以补偿排气中的空气浓度降低的方式运行 气体。

    Method of controlling temperature in thermal reactor for engine exhaust
gas and ignition system for performing same
    8.
    发明授权
    Method of controlling temperature in thermal reactor for engine exhaust gas and ignition system for performing same 失效
    控制发动机排气热反应堆温度的方法及其执行点火系统

    公开(公告)号:US4103486A

    公开(公告)日:1978-08-01

    申请号:US673536

    申请日:1976-04-05

    摘要: In a spark-ignited internal combustion engine having a plurality of combustion chambers, at least one combustion chamber is intentionally caused to misfire either periodically or continuously to increase the amount of unburned fuel in the exhaust gas when the temperature in the thermal reactor drops excessively during, e.g., idling of the engine. An ignition system for performing the method has a supplementary ignition primary circuit which is normally disconnected from the ignition coil primary, but causes the secondary voltage either to become zero periodically or to lower when connected with the ignition coil primary. Alternatively, the ignition timing is retarded from a normal timing in a portion of the combustion chambers to raise the exhaust gas temperature. An ignition system for the ignition timing retardation has a supplementary circuit which prevents certain times of the breaks in the primary circuit from producing sparks in the intended combustion chambers and supplies a high voltage pulse to each of these combustion chambers with a predetermined time delay from each of the breaks which are made ineffectual.

    摘要翻译: 在具有多个燃烧室的火花点燃内燃机中,当热反应堆中的温度过度下降时,至少一个燃烧室有意地周期性地或连续地失火以增加废气中的未燃烧燃料的量, ,例如发动机空转。 用于执行该方法的点火系统具有通常与点火线圈一次断开的补充点火一次回路,但是当与点火线圈原件连接时,二次电压也会周期性变为零或降低。 或者,点燃正时从燃烧室的一部分的正常时刻延迟,以提高废气温度。 用于点火正时延迟的点火系统具有辅助电路,其防止初级回路中的某些时间断裂在预期燃烧室中产生火花,并且以每个这些燃烧室的预定时间延迟从这些燃烧室提供高电压脉冲 的休息是无效的。

    Ignition system spark timing control during engine cranking
    10.
    发明授权
    Ignition system spark timing control during engine cranking 失效
    点火系统在发动机起动期间点火定时控制

    公开(公告)号:US4416234A

    公开(公告)日:1983-11-22

    申请号:US387160

    申请日:1982-06-10

    申请人: Kenji Ikeura

    发明人: Kenji Ikeura

    IPC分类号: F02P5/15 F02P5/14

    CPC分类号: F02P5/1506 Y02T10/46

    摘要: A method and apparatus for controlling ignition system spark timing. It is detected whether the engine is under cranking or not. Means are included to provide a spark-advance characteristics when the engine is under cranking, which is separate from a spark-advance characteristic provided for the remaining engine operating conditions.

    摘要翻译: 一种用于控制点火系统火花正时的方法和装置。 检测发动机是否在起动下。 当发动机处于起动时,包括提供火花提前特性的装置,其与为剩余发动机运行条件提供的火花提前特性分开。