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1. 发明授权

US08676471B2 Method for determining an index of the fuel combustion in an engine cylinder 有权
标题翻译：用于确定发动机气缸中的燃料燃烧指数的方法
公开(公告)号：US08676471B2
公开(公告)日：2014-03-18
申请号：US12914807
申请日：2010-10-28
申请人： Alessandro Catanese , Fabio Autieri , Claudio Monferrato
发明人： Alessandro Catanese , Fabio Autieri , Claudio Monferrato
IPC分类号： G01M15/08 , G01L23/30 , F02B77/08 , F02D35/02 , F02D45/00
CPC分类号： F02D35/028 , F02D35/023
摘要： A method is provided for determining an index representing the crank angle at which a given fuel mass fraction has been burnt in a cylinder of the engine during an engine cycle. The method includes, but is not limited to sampling the pressure within the cylinder during the engine cycle, using the pressure samples for determining the heat release rate curve during the engine cycle, using the heat release rate curve for determining the cumulative heat release curve during the engine cycle, determining a minimum value and a maximum value of the cumulative heat release curve, using the given fuel mass fraction for calculating a target value of the cumulative heat release between the minimum and maximum values, finding a goal point of the cumulative heat release curve that corresponds to the target value, assuming the crank angle corresponding to the goal point as the index. The method further includes, but is not limited to determining an opening angle within the crank angular range corresponding to compression stroke of the engine cycle, determining a closing angle within the crank angular range corresponding to the expansion stroke of the engine cycle, using the opening and closing angles for delimiting between them a first angular window, and limiting the determination of the minimum and maximum values of the cumulative heat release curve within the first angular window.
摘要翻译：提供了一种用于确定表示在发动机循环期间给定燃料质量分数在发动机的气缸中燃烧的曲柄角的指标的方法。该方法包括但不限于在发动机循环期间使用用于确定发动机循环期间的放热速率曲线的压力样本使用用于确定在发动机循环期间的累积放热曲线的放热速率曲线来对发动机循环期间的气缸内的压力进行取样发动机循环，使用给定的燃料质量分数来确定累积放热曲线的最小值和最大值，以计算最小值和最大值之间的累积放热的目标值，找到累积热量的目标点释放曲线对应于目标值，假设对应于目标点的曲柄角为指标。该方法还包括但不限于确定与发动机循环的压缩冲程相对应的曲柄角度范围内的开度角，使用开度确定与发动机循环的膨胀冲程相对应的曲柄角度范围内的关闭角度以及用于在它们之间划定第一角度窗的闭合角度，并且限制第一角度窗内的累积放热曲线的最小值和最大值的确定。

2. 发明授权

US4147054A Method and apparatus for determining the upper dead-center position with piston engines 失效
标题翻译：用活塞发动机确定上死点位置的方法和装置
公开(公告)号：US4147054A
公开(公告)日：1979-04-03
申请号：US856977
申请日：1977-12-02
申请人： Gunter Hohenberg , Detlef Kurr
发明人： Gunter Hohenberg , Detlef Kurr
IPC分类号： F02B77/08 , G01L23/30 , G01M15/06 , G01M15/00
CPC分类号： G01M15/06 , F02B77/087 , G01L23/30
摘要： A method and apparatus for determining the upper dead-center position in piston engines, in which the crankshaft angle corresponding to the maximum compression pressure is determined by a pressure measurement and by the addition of a correcting factor that corresponds to the thermodynamic loss angle conditioned by heat-transfer and leakage losses.
摘要翻译：一种用于确定活塞发动机中的上止点位置的方法和装置，其中与最大压缩压力相对应的曲轴角度由压力测量确定，并且通过增加校正因子，该校正系数对应于由传热和泄漏损失。

3. 发明授权

US4090404A Apparatus and methods of detecting injection in a diesel engine 失效
标题翻译：柴油发动机的喷射检测装置及方法
公开(公告)号：US4090404A
公开(公告)日：1978-05-23
申请号：US725279
申请日：1976-09-21
申请人： Jean-Pierre Dupont , Jean-Francois Gregoire , Michel Ligier , Jacques Roy
发明人： Jean-Pierre Dupont , Jean-Francois Gregoire , Michel Ligier , Jacques Roy
IPC分类号： F02B3/06 , F02M65/00 , G01L23/08 , G01L23/18 , G01L23/24 , G01L23/30 , G01F9/00
CPC分类号： G01L23/24 , F02M65/003 , G01L23/08 , G01L23/18 , G01L23/30 , F02B3/06 , F02D2200/0602
摘要： The invention relates to an apparatus for detecting the injection into an internal combustion engine, and in particular a diesel engine, comprising an injection pump, by means of an injector and at least one length of connecting tubing between the pump and the injector, this apparatus comprising means for detecting the transverse deformation of the connecting tubing under the pressure of the injected fuel.The detection means are disposed between gripper means for firmly locking the connecting tubing at two non-contiguous zones, and are carried by these gripper means in such a way that the sensitive parts of the detection means are applied, in the operative position of the apparatus, at least to the central part of the tubing between these two zones.
摘要翻译：本发明涉及一种用于检测注入内燃机，特别是柴油发动机的装置，该柴油机包括通过喷射器的注射泵和在泵和喷射器之间的至少一段长度的连接管，该装置包括用于在喷射燃料的压力下检测连接管的横向变形的装置。

4. 发明授权

US1789593A Piston-position indicator 失效
标题翻译：活塞位置指示器
公开(公告)号：US1789593A
公开(公告)日：1931-01-20
申请号：US47871030
申请日：1930-08-29
申请人： BERKLEY C STONE
发明人： MURPHY THOMAS A
IPC分类号： G01L23/30
CPC分类号： G01L23/30 , Y10S33/15

5. 发明申请

US20170212002A1 METHOD FOR DETERMINING THE TOTAL PRESSURE IN THE CYLINDER OF AN ENGINE 审中-公开
公开(公告)号：US20170212002A1
公开(公告)日：2017-07-27
申请号：US15328817
申请日：2015-07-21
申请人： CONTINENTAL AUTOMOTIVE FRANCE , CONTINENTAL AUTOMOTIVE GMBH
发明人： Bertrand VAROQUIE , Christophe BOUQUEY
IPC分类号： G01L23/30 , G01M15/08 , F02D41/40 , F02D35/02
CPC分类号： G01L23/30 , F02D35/024 , F02D41/40 , F02D41/402 , G01M15/08 , Y02T10/44
摘要： A method (45) for determining the total pressure in a cylinder (Pcyl) of an engine as a function of the angular position (crk) of a crankshaft (14) and from a quantity of fuel to be injected in possibly several injections, includes: determining the pressure in the cylinder when there is no combustion, the pressure being called the pressure without combustion (Pcyl_m), determining, for each injection (inji), a curve of sub-variation of pressure (ΔPcomb_i) caused by the combustion of the fuel quantity injected during the such injection (inji), the shape of the curve being estimated as a function of the quantity of fuel to be injected (MFi) and of the angular position for start of injection (SOIi) of the corresponding injection, determining the total pressure in the cylinder (Pcyl) by adding together the pressure without combustion (Pcyl_m) and the pressures given by the pressure sub-variation curves (ΔPcomb_i) of each injection (inji).

6. 发明授权

US4739649A Method of and apparatus for detecting maximum cylinder pressure angle in internal combustion engine 失效
标题翻译：内燃机最大气缸压角检测方法及装置
公开(公告)号：US4739649A
公开(公告)日：1988-04-26
申请号：US63937
申请日：1987-06-19
申请人： Akira Tanaka
发明人： Akira Tanaka
IPC分类号： G01L23/30 , F02D45/00 , F02P5/155 , G01M15/08 , G01M15/00
CPC分类号： G01M15/08 , F02P5/1553 , Y02T10/46
摘要： A method of and an apparatus for detecting the maximum cylinder pressure angle in an internal combustion engine. The method comprises the steps of measuring the time lapse required for the engine crankshaft to pass between a reference crankshaft angle such as TDC and the crankshaft angle at which the cylinder pressure becomes maximum and multiplying the measured time lapse by a time-angle conversion factor. The rate of change in the engine rotation speed is taken into consideration in carrying out the time-angle conversion so that it is possible to accurately determine the position at which the cylinder pressure becomes maximum in terms of crankshaft angle regardless of the operating condition of the engine. In the apparatus, the engine speed change rate is also compensated. The time-angle conversion can be carried out accurately even when there is used a crankshaft angle sensor which detects the crankshaft angle at relatively large intervals such as once every 30 degrees.
摘要翻译：一种用于检测内燃机中最大气缸压角的方法和装置。该方法包括以下步骤：测量发动机曲轴在诸如TDC的参考曲轴角度和气缸压力变为最大值的曲轴角度之间经过所需的时间间隔，并将测量的时间经过乘以时间角转换因子。在执行时间角转换时考虑发动机转速的变化率，使得可以根据曲轴角度精确地确定气缸压力变为最大的位置，而与发动机。在该装置中，发动机转速变化率也得到补偿。即使使用曲轴角度传感器，也可以精确地进行时间角转换，该曲轴角度传感器以相对大的间隔检测曲轴角度，例如每30度一次。

7. 发明授权

US4483183A System for measuring crank angle for internal combustion engine 失效
标题翻译：内燃机曲柄角测量系统
公开(公告)号：US4483183A
公开(公告)日：1984-11-20
申请号：US384815
申请日：1982-06-03
申请人： Hitoshi Suzuki , Tokuro Morozumi
发明人： Hitoshi Suzuki , Tokuro Morozumi
IPC分类号： F02D45/00 , F02P7/06 , G01B21/22 , G01L23/24 , G01L23/30 , G01P3/481 , G01M15/00
CPC分类号： F02P7/061 , G01L23/24 , G01L23/30
摘要： A system for measuring crank angle of an internal combustion engine by detecting the variation of the pressure in the induction passage of the engine. The system is provided with a pressure sensor responsive to the pressure in the induction passage for generating an output signal, and a pulse generating circuit. The pulse generating circuit operates to produce pulses from the variation of the output signal of the pressure sensor and comprises a circuit for producing a mean value between the maximum value and the minimum value of the output signal.
摘要翻译：一种用于通过检测发动机的进气通道中的压力的变化来测量内燃机的曲柄角的系统。该系统具有响应于感应通道中的压力以产生输出信号的压力传感器和脉冲发生电路。脉冲发生电路用于从压力传感器的输出信号的变化产生脉冲，并且包括用于产生输出信号的最大值和最小值之间的平均值的电路。

8. 发明授权

US2098058A Apparatus for locating top dead center 失效
标题翻译：用于定位上死点的装置
公开(公告)号：US2098058A
公开(公告)日：1937-11-02
申请号：US6479236
申请日：1936-02-19
申请人： POWER PATENTS CO
发明人： MORGAN JOHN D
IPC分类号： G01L23/30
CPC分类号： G01L23/30

9. 发明授权

US2082030A Phase indicator 失效
标题翻译：相位指示器
公开(公告)号：US2082030A
公开(公告)日：1937-06-01
申请号：US8180836
申请日：1936-05-26
申请人： RCA CORP
发明人： SCHRADER HAROLD J , GILBERT SWIFT
IPC分类号： G01L23/30 , G01R13/20
CPC分类号： G01R13/208 , G01L23/30

10. 发明授权

US11203994B2 Method and control device for determining reliability regarding misfire determination of cylinders of an internal combustion engine 有权
公开(公告)号：US11203994B2
公开(公告)日：2021-12-21
申请号：US17253880
申请日：2019-06-14
申请人： Scania CV AB
发明人： Björn Nybäck , Ola Stenlåås , Oskar Kleback
IPC分类号： F02D41/14 , G01M15/11 , F02D41/00 , G01L23/30 , G01L23/24
摘要： Disclosed is a method for determining reliability regarding misfire determination of cylinders of an engine, comprising detecting a pressure in an exhaust manifold for a set of operation parameters comprising a certain range of crank angles for a certain engine load and certain engine speed so as to, for an actual cylinder setup of the engine, create pressure sample value patterns for combustion and misfire conditions. A template course is created for the thus created pressure sample value patterns comprising a set of sample points. The pressure for the created template courses is normalized at a desired crank angle. Difference values are determined based upon differences between sample points and corresponding detected and the normalized pressure values. The determined difference values are summarized so as to determine whether a predetermined share of the summarized difference values lies above or below a predetermined threshold value indicating reliability regarding misfire determination.

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