-
公开(公告)号：US4440014A
公开(公告)日：1984-04-03
申请号：US368090
申请日：1982-04-13
申请人： Tadashi Hattori , Tadashi Ozaki , Yoshinori Ootsuka , Kazuhiko Miura , Masanori Hanaoka , Yukihide Hashiguchi
发明人： Tadashi Hattori , Tadashi Ozaki , Yoshinori Ootsuka , Kazuhiko Miura , Masanori Hanaoka , Yukihide Hashiguchi
CPC分类号： G01L9/007 , G01L23/223
摘要： An engine knocking detection device has a diaphragm to be disposed in contact with the engine cooling water so as to resonate with pulsations of the pressure of the cooling water caused by engine knockings, and output elements responsive to the vibration of the diaphragm to produce an electrical output signal to be utilized for the control of engine spark timing. The water-contacting surface of the diaphragm is coated with a layer of a hydrophilic material operative to prevent attachment or adhesion of air bubbles to the water-contacting surface of the diaphragm whereby the sensitivity of the diaphragm to the water pressure pulsation is improved.
摘要翻译： 发动机爆震检测装置具有隔膜以与发动机冷却水接触以便与由发动机撞击引起的冷却水的压力的波动共振，以及响应于隔膜的振动的输出元件，以产生电气 输出信号用于控制发动机点火正时。 隔膜的水接触表面涂覆有亲水材料层，其操作以防止气泡附着或粘附到隔膜的水接触表面，由此提高隔膜对水压脉动的灵敏度。
-
公开(公告)号：US4462247A
公开(公告)日：1984-07-31
申请号：US354434
申请日：1982-03-03
申请人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
CPC分类号： G01L23/223 , G01L23/222 , Y10S73/04
摘要： A knock detecting apparatus for detecting the occurrence of knocking in an internal combustion engine by detecting variations in the pressure of engine cooling water. A sealed double diaphragm structure is formed by a first diaphragm which is directly responsive to variations in the cooling water pressure and not resonant at the knock frequencies and a second diaphragm which is resonant at the knock frequencies. A noncompressible fluid is contained in the sealed double diaphragm structure between the two diaphragms. Pulsations of the second diaphragm, resonant at the knock frequencies, are detected by a magnetic device or a piezoelectric device operative to output an ac signal.
摘要翻译： 一种爆震检测装置，用于通过检测发动机冷却水的压力变化来检测内燃机的爆震发生。 密封的双隔膜结构由第一隔膜形成，第一膜片直接响应于冷却水压力的变化而不是在爆震频率下共振，而第二隔膜在爆震频率下共振。 在两个隔膜之间的密封双隔膜结构中包含不可压缩的流体。 通过用于输出交流信号的磁性装置或压电装置检测第二隔膜的振荡频率下的振荡。
-
公开(公告)号：US4452069A
公开(公告)日：1984-06-05
申请号：US335283
申请日：1981-12-28
申请人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
CPC分类号： G01L19/148 , G01L19/0038 , G01L19/0609 , G01L19/0645 , G01L23/221
摘要： A method of sensing a knocking taking place in an internal combustion engine through the sensing of pulsative component of the cooling water pressure or lubricating oil pressure. The sensing of the pulsative component is made by removing the static component from the composite pressure which is the sum of the pulsative component and the static component. An apparatus for sensing a knocking taking place in an internal combustion engine has a differential pressure sensing mechanism including a pressure sensing diaphragm and a pulsation absorption mechanism. The pressure sensing diaphragm receives at its one side the composite cooling water pressure or composite lubricating oil pressure which is the sum of the pulsative component and static component. The pulsation absorption mechanism absorbs the pulsative component from the composite pressure so as to transmit only the static component of the pressure to the other side of the pressure sensing diaphragm. In consequence, the pressure sensing diaphragm is deflected only in response to the pulsative component of the pressure without being affected by the static component.
摘要翻译： 一种通过感测冷却水压力或润滑油压力的脉动分量来感测在内燃机中发生爆震的方法。 通过从作为脉动分量和静态分量的总和的复合压力中去除静态分量来进行脉动分量的感测。 用于感测在内燃机中发生爆震的装置具有包括压力检测膜片和脉动吸收机构的差压检测机构。 压力传感隔膜在其一侧接收作为脉动分量和静态分量之和的复合冷却水压力或复合润滑油压力。 脉动吸收机构从复合压力吸收脉动成分，仅将压力的静态分量传递到压力感测膜片的另一侧。 因此，只有响应于压力的脉动分量而不受静电部件的影响，压力感测膜片就会偏转。
-
公开(公告)号：US4424705A
公开(公告)日：1984-01-10
申请号：US335284
申请日：1981-12-28
申请人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
发明人： Tadashi Hattori , Masanori Hanaoka , Yukihide Hashiguchi , Yoshinori Ootsuka , Hiroaki Yamaguchi
CPC分类号： G01H11/02 , G01L23/223
摘要： A knocking sensing apparatus for sensing a knocking taking place in an internal combustion engine. The apparatus includes a diaphragm adapted to operate in response to the pressure of cooling water circulated in the engine, magnetism generating device, magnetic circuit including the diaphragm, and a magnetic flux detecting device adapted to detect in a manner like alternating current the change in the magnetic flux in the magnetic circuit caused by the operation of the diaphragm.
摘要翻译： 一种用于感测在内燃机中发生爆震的爆震感测装置。 该装置包括适于响应于在发动机中循环的冷却水的压力而工作的隔膜，磁力发生装置，包括隔膜的磁路以及适于以类似交流电的方式检测的磁通量检测装置， 在磁路中的磁通量由隔膜的操作引起。
-
公开(公告)号：US4616502A
公开(公告)日：1986-10-14
申请号：US533972
申请日：1983-09-20
IPC分类号： G01L23/22
CPC分类号： G01L23/223 , G01L23/225
摘要： In a knocking detection system for an internal combustion engine, a knocking is detected by a vibration sensor the output level of which is changed by controlling the sensor excitation current. The excitation current is controlled in dependence upon the output of the sensor, engine speed or load conditions or the like so that the output noise level of the sensor is maintained substantially constant regardless of engine operating conditions.
摘要翻译： 在用于内燃机的爆震检测系统中，通过控制传感器激励电流来改变输出电平的振动传感器来检测爆震。 励磁电流根据传感器的输出，发动机转速或负载条件等进行控制，使得传感器的输出噪声水平与发动机工作条件无关地保持基本恒定。
-
公开(公告)号：US4476709A
公开(公告)日：1984-10-16
申请号：US408896
申请日：1982-08-17
CPC分类号： G01L23/225
摘要： In a knock detecting apparatus for an internal combustion engine, the output signal of a knock sensor whose output signal level varies in accordance with the engine conditions, engine speed, sensor sensitivity, etc., is passed through an automatic gain control circuit (AGC) thereby stabilizing the output level. The background noise level derived by integrating the output signal and the stabilized output signal are compared to detect the occurrence of knocking. The stabilized output signal is passed through a low-pass filter or a band-pass filter and the resulting control signal is used to control the gain of the AGC circuit.
摘要翻译： 在内燃机的爆震检测装置中，输出信号电平根据发动机状态，发动机转速，传感器灵敏度等而变化的爆震传感器的输出信号通过自动增益控制电路（AGC） 从而稳定输出水平。 比较通过积分输出信号和稳定输出信号导出的背景噪声电平，以检测爆震的发生。 稳定的输出信号通过低通滤波器或带通滤波器，并且所得到的控制信号用于控制AGC电路的增益。
-
公开(公告)号：US4567751A
公开(公告)日：1986-02-04
申请号：US539318
申请日：1983-10-05
CPC分类号： G01L23/225 , F02P5/152 , G01L23/222 , F02B1/04 , F02B3/06 , Y02T10/46
摘要： A device for detection of knocking in a diesel engine has a pressure sensor including a piezoelectric element and detecting a rate of change in combustion pressure, an angle sensor for detecting the rotation of the engine or engine speed, and a knocking detector for receiving outputs from the pressure and angle sensors. The knocking detector serves to detect a rate of change in combustion pressure per unit angle upon necessary correction by the engine speed and to compare the obtained rate with a reference rate of 5 atm/deg, at which knocking occurs. Knocking is detected when the detected rate exceeds the reference rate.
摘要翻译： 用于检测柴油发动机爆震的装置具有包括压电元件并检测燃烧压力变化率的压力传感器，用于检测发动机转速或发动机转速的角度传感器，以及用于接收来自 压力和角度传感器。 爆震检测器用于根据发动机转速检测必要校正时的每单位角燃烧压力的变化率，并将获得的速率与发生爆震的5atm / deg的参考速率进行比较。 当检测到的速率超过参考速率时，检测到敲击。
-
8.发明授权
公开(公告)号：US4537065A
公开(公告)日：1985-08-27
申请号：US575996
申请日：1984-02-01
CPC分类号： G01M15/08 , F02P5/1526 , G01L23/10 , G01L27/007 , F02B1/04 , Y02T10/142 , Y02T10/46
摘要： A device for detecting an abnormality in a pressure detector in an internal combustion engine. This device includes a piezoelectric pressure detector, a timing detection unit, a selective connection unit, and an abnormality detection unit. The abnormality detection unit includes a capacitor connected to an oscillation circuit, and the piezoelectric pressure detector is connected in parallel with the series connection of the oscillation circuit and the capacitor.
摘要翻译： 一种用于检测内燃机中的压力检测器的异常的装置。 该装置包括压电压力检测器，定时检测单元，选择连接单元和异常检测单元。 异常检测单元包括连接到振荡电路的电容器，并且压电压力检测器与振荡电路和电容器的串联连接并联。
-
公开(公告)号：US4567755A
公开(公告)日：1986-02-04
申请号：US584383
申请日：1984-02-28
摘要： A device for the detection of ignition misfire in an internal combustion engine is disclosed. A pressure detector detects changes in the combustion pressure of the engine, and a timing detector calculates a reference angular position of the engine. An ignition/misfire detection unit detects occurrences of ignition/misfire. The detection unit compares the output of the pressure detector with predetermined positive and negative reference voltages, and produces signals when these thresholds are passed. The period of a signal produced from the point of positive value detection to the negative value detection is counted and another period which is double the period from the generation of the positive value to the signal from the timing detector unit is counted. These two signals are then compared against one another, using a predetermined program, to detect if ignition or misfire has occurred in the internal combustion engine. A sample and hold circuit may also delay the value obtained by the pressure detector, if necessary.
摘要翻译： 公开了一种用于检测内燃机中的点火失火的装置。 压力检测器检测发动机的燃烧压力的变化，定时检测器计算发动机的基准角位置。 点火/失火检测单元检测点火/失火的发生。 检测单元将压力检测器的输出与预定的正和负参考电压进行比较，并且当这些阈值通过时产生信号。 对从正值检测点到负值检测产生的信号的周期进行计数，并计数从正值的产生到来自定时检测器单元的信号的周期的两倍的周期。 然后使用预定程序将这两个信号彼此进行比较，以检测内燃机中是否发生点火或失火。 如果需要，采样和保持电路也可以延迟由压力检测器获得的值。
-
公开(公告)号：US4465047A
公开(公告)日：1984-08-14
申请号：US360688
申请日：1982-03-22
CPC分类号： G01L23/223
摘要： A knock detecting apparatus for an internal combustion engine includes a vibrating sheet branched into a plurality of vibrating reeds by forming a recess from one end of the vibrating sheet. The vibrating reeds have different lengths, shapes or thicknesses, and the other end of the vibrating sheet is fixed to a supporting member which is secured to the engine thereby to allow the vibrating reeds to vibrate with different resonance characteristics in response to the vibration of the engine caused by the knocking. The vibration of the vibrating sheet is detected, for example, as a change in reluctance by forming a magnetic path through the vibrating sheet and air gaps respectively located between the free ends of the vibrating reeds and a core.
摘要翻译： 用于内燃机的爆震检测装置包括通过从振动片的一端形成凹部而分支成多个振动片的振动片。 振动片具有不同的长度，形状或厚度，并且振动片的另一端固定到固定到发动机上的支撑构件，从而允许振动片响应于振动片的振动而以不同的谐振特性振动 引擎引起的敲击。 通过形成通过振动片的磁路和分别位于振动片的自由端和芯之间的气隙，来检测振动片的振动，例如作为磁阻的变化。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.023 秒)
