Piezoelectric ignition and sensing device
    2.
    发明授权
    Piezoelectric ignition and sensing device 有权
    压电式点火和感应装置

    公开(公告)号:US6138654A

    公开(公告)日:2000-10-31

    申请号:US173144

    申请日:1998-10-15

    摘要: A spark plug comprising a piezoelectric element that strains with the increase in pressure in the cylinder of an internal combustion engine, and methods of making and using such a spark plug. The strain on the element generates a voltage across the poles of the piezoelectric element that varies with the cylinder pressure. This voltage can be monitored to determine the pressure in the cylinder. The voltage will increase until it is sufficient to create a spark between two poles that will be used to ignite the fuel-air mixture in the cylinder. The voltage may be further increased by using the increasing cylinder pressure to accelerate a striker mass to impact the piezoelectric element. After ignition, the piezoelectric element strains further because of the rapid increase in pressure due to the combustion process. Sensing the voltage output after combustion can provide information about the engine cycle and indicate any anomalies such as pre-ignition, misfire, or knock.

    摘要翻译: 一种火花塞,包括随着内燃机的气缸中的压力增加而变形的压电元件,以及制造和使用这种火花塞的方法。 元件上的应变产生随着气缸压力而变化的压电元件两端的电压。 可以监视该电压以确定气缸中的压力。 电压将增加,直到足以在两个极之间产生火花,这些火花将用于点燃气缸中的燃料 - 空气混合物。 通过使用增加的气缸压力来加速撞击器质量以冲击压电元件,可以进一步增加电压。 点火后,压电元件由于燃烧过程由于压力的快速增加而进一步变形。 检测燃烧后的电压输出可以提供有关发动机循环的信息,并指出任何异常现象,如点火前,失火或爆震。

    Combustion state detecting apparatus for an engine
    4.
    发明授权
    Combustion state detecting apparatus for an engine 有权
    用于发动机的燃烧状态检测装置

    公开(公告)号:US07162360B2

    公开(公告)日:2007-01-09

    申请号:US11268728

    申请日:2005-11-08

    IPC分类号: G01M15/08 F02P17/00

    CPC分类号: G01M15/08 F02P15/06 G01M15/11

    摘要: A combustion state detecting apparatus is provided for an engine having internal pressure sensor for detecting an internal pressure of a combustion chamber of the engine and crank angle detector for detecting a crank angle of the engine. The apparatus calculates a volume of the combustion chamber based on the crank angle detected by the crank angle detector and estimator for estimating a motoring pressure of the engine in accordance with a calculation equation using the calculated volume. The apparatus adjusts either of the pressure detected by the internal pressure sensor and the pressure estimated by the estimator during a compression stroke of the engine to minimize the error between the detected pressure and the estimated pressure. The apparatus determines a combustion state during a combustion stroke of the engine based on a relation between the pressure adjusted and the other pressure. The apparatus identifies parameters of the calculation equation during a compression stroke of the engine to minimize the error between the pressure detected by the internal pressure sensor and the pressure estimated by the estimator.

    摘要翻译: 为具有用于检测发动机的燃烧室的内部压力的内部压力传感器和用于检测发动机的曲柄角的曲轴角度检测器的发动机提供燃烧状态检测装置。 该装置基于由曲轴角度检测器和估计器检测到的曲柄角度来计算燃烧室的体积,用于根据使用所计算的体积的计算方程来估计发动机的驾驶压力。 该装置调节由内部压力传感器检测到的压力和由发动机的压缩冲程期间由估计器估计的压力,以使检测到的压力和估计压力之间的误差最小化。 该装置基于压力调节和其它压力之间的关系来确定发动机的燃烧冲程期间的燃烧状态。 该装置在发动机的压缩冲程期间识别计算方程的参数,以使由内部压力传感器检测的压力与由估计器估计的压力之间的误差最小化。

    Spark plug with combustion pressure switches
    5.
    发明授权
    Spark plug with combustion pressure switches 失效
    火花塞与燃烧压力开关

    公开(公告)号:US4114068A

    公开(公告)日:1978-09-12

    申请号:US800950

    申请日:1977-05-26

    申请人: Etler-Peter Tylka

    发明人: Etler-Peter Tylka

    CPC分类号: H01T13/40 F02P15/06

    摘要: A spark plug for an internal combustion engine, the spark plug comprising a casing, a center electrode, a connector pin for the center electrode, and a plunger adapted to be axially displaced within the spark plug by the compression pressure as pressure builds in the cylinder, the plunger first closes a set of contacts in the spark plug causing current to flow in the primary side of an ignition coil, then closes a second set of contacts in the spark plug connecting the center electrode to the secondary side of the ignition coil, and finally opens the first set of contacts causing a large voltage to be induced in the secondary side which voltage is applied to the center electrode.

    Combustion state detecting apparatus for an engine
    7.
    发明申请
    Combustion state detecting apparatus for an engine 有权
    用于发动机的燃烧状态检测装置

    公开(公告)号:US20060116812A1

    公开(公告)日:2006-06-01

    申请号:US11268728

    申请日:2005-11-08

    IPC分类号: G01M15/08

    CPC分类号: G01M15/08 F02P15/06 G01M15/11

    摘要: A combustion state detecting apparatus is provided for an engine having internal pressure sensor for detecting an internal pressure of a combustion chamber of the engine and crank angle detector for detecting a crank angle of the engine. The apparatus calculates a volume of the combustion chamber based on the crank angle detected by the crank angle detector and estimator for estimating a motoring pressure of the engine in accordance with a calculation equation using the calculated volume. The apparatus adjusts either of the pressure detected by the internal pressure sensor and the pressure estimated by the estimator during a compression stroke of the engine to minimize the error between the detected pressure and the estimated pressure. The apparatus determines a combustion state during a combustion stroke of the engine based on a relation between the pressure adjusted and the other pressure. The apparatus identifies parameters of the calculation equation during a compression stroke of the engine to minimize the error between the pressure detected by the internal pressure sensor and the pressure estimated by the estimator.

    摘要翻译: 为具有用于检测发动机的燃烧室的内部压力的内部压力传感器和用于检测发动机的曲轴转角的曲轴角度检测器的发动机提供燃烧状态检测装置。 该装置基于由曲轴角度检测器和估计器检测到的曲柄角度来计算燃烧室的体积,用于根据使用所计算的体积的计算方程来估计发动机的动力。 该装置调节由内部压力传感器检测到的压力和由发动机的压缩冲程期间由估计器估计的压力,以使检测到的压力和估计压力之间的误差最小化。 该装置基于压力调节和其它压力之间的关系来确定发动机的燃烧冲程期间的燃烧状态。 该装置在发动机的压缩冲程期间识别计算方程的参数,以使由内部压力传感器检测的压力与由估计器估计的压力之间的误差最小化。

    Method and apparatus for protecting the catalytic converter of an internal combustion engine from overheating
    8.
    发明授权
    Method and apparatus for protecting the catalytic converter of an internal combustion engine from overheating 有权
    用于保护内燃机的催化转化器免于过热的方法和装置

    公开(公告)号:US06668547B2

    公开(公告)日:2003-12-30

    申请号:US09785660

    申请日:2001-02-20

    申请人: Thomas Paland

    发明人: Thomas Paland

    IPC分类号: F01N300

    摘要: A method and an apparatus for protecting the catalytic converter in the exhaust system of an internal combustion engine from overheating in the case of retarded ignition angles, in which a characteristic map (10) provides an engine-speed- and/or load-dependent ignition angle (Zu) that can be specified without time restriction. The ignition angle (Zu) is compared in a comparison device (12) with an optimum ignition angle (OZ) calculated in a parameter-dependent manner and, in the case of an optimum ignition angle (OZ) that is more retarded than the unrestricted specifiable ignition angle (Zu), this optimum ignition angle (OZ) is used for ignition of the internal combustion engine during specifiable time periods in alternation with the ignition angle (Zu), which can be specified without time restriction, while, in the opposite case, only the optimum ignition angle (OZ) is used for this purpose.

    摘要翻译: 在延迟点火角的情况下,保护内燃机的排气系统中的催化转化器免于过热的方法和装置,其特征图(10)提供发动机转速和/或负载相关点火 角度(Zu)可以指定时间限制。 比较装置(12)中的点火角(Zu)与以参数相关的方式计算的最佳点火角(OZ)进行比较,并且在最佳点火角(OZ)比无限制 可指定的点火角(Zu),该最佳点火角(OZ)用于在与可点燃角度(Zu)交替的可指定时间段期间内燃机点火,这可以在没有时间限制的情况下指定,而在相反的 情况下,仅为此目的使用最佳点火角(OZ)。

    Internal combustion engine ignition spark timing system modulated by
cylinder combustion pressure
    9.
    发明授权
    Internal combustion engine ignition spark timing system modulated by cylinder combustion pressure 失效
    内燃机点火火花定时系统由气缸燃烧压力调节

    公开(公告)号:US4116175A

    公开(公告)日:1978-09-26

    申请号:US709493

    申请日:1976-07-28

    申请人: Roger D. Sand

    发明人: Roger D. Sand

    IPC分类号: F02P5/145 F02P15/06 F02P5/04

    摘要: An analog signal of a direct current potential magnitude proportional to the peak combustion pressure of a monitored internal combustion engine cylinder is simultaneously applied to two mutually exclusive comparator circuits, each being arranged to produce a separate respective output signal when the monitored cylinder peak combustion pressure is less than a first predetermined value or greater than a second higher predetermined value. With a signal present upon the output of either comparator circuit, upon the occurrence of a clock signal produced when another selected engine cylinder is later fired, either an ignition spark advance or an ignition spark retard signal is produced as determined by the comparator circuit output signal present. The adjustable ignition spark timing mechanism of an associated ignition distributor is operated to retard the ignition spark in response to an ignition spark retard signal and to advance the ignition spark in response to an ignition spark advance signal. A reset signal produced after the clock signal resets the circuit in preparation for the next firing of the monitored cylinder.

    摘要翻译: 与监测的内燃机气缸的峰值燃烧压力成比例的直流电势量的模拟信号同时施加到两个相互排斥的比较器电路,每个比较器电路被布置成当监测的气缸峰值燃烧压力为 小于第一预定值或大于第二较高预定值。 当存在于任一比较器电路的输出端上的信号时,在另一选定发动机气缸稍后点火时产生的时钟信号出现时,产生点火火花提前或点火火花延迟信号,由比较器电路输出信号 当下。 操作相关联的点火分配器的可调点火火花正时机构以响应于点火火花延迟信号而延迟点火火花,并响应于点火火花提前信号推进点火火花。 在时钟信号复位电路之后产生的复位信号准备下一次监视的气缸的点火。