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    • 2. 发明申请
    • ARRANGEMENT AND METHOD FOR REGULATION OF IDLE SPEED AND CHARGE PRESSURE IN A SUPERCHARGED COMBUSTION ENGINE
    • 超级燃油发动机空转速度和充气压力的调整方法
    • WO1995002119A1
    • 1995-01-19
    • PCT/SE1994000647
    • 1994-06-30
    • MECEL ABNYTOMT, Jan
    • MECEL AB
    • F02B37/12
    • F02B37/186F02D23/00F02M3/06F02M3/09F02M69/32Y02T10/144
    • An arrangement and method for regulation of idle speed and charge pressure in a supercharged combustion engine (1) which engine includes an idle speed valve (20) arranged in a shunt channel (21) by-passing the throttle (9) and waste-gate valve (10) regulated by a pressure controlled diaphragm pot for regulating of the supercharger. The invention is characterised in that one and the same valve (20) is used for regulation of idle speed and charge pressure. By a simple arrangement of ducting (23, 24, 25, 19) and a shut-off valve (26) added to conventional device for idle speed regulation, a regulation of the waste-gate is obtained which is in parity to the idle speed regulation in aspects of accuracy and response, at a reduced cost. One and the same control device (31) including two different functions for regulation could be used due to that the regulation of idle speed and charge pressure could not arise at the same time. The functions for regulation is selected by the control device dependent of a detected engine parameter, by preference a throttle position sensor (16).
    • 一种用于调节增压内燃机(1)中的怠速和充气压力的装置和方法,该发动机包括布置在分流通道(21)中的怠速阀(20),旁路通路(9)和废气门 阀门(10)由压力控制的隔膜阀调节,用于调节增压器。 本发明的特征在于,使用同一个阀(20)来调节怠速和充气压力。 通过将管道(23,24,25,19)的简单布置以及添加到常规设备中的怠速调节的截止阀(26),获得了与怠速平均相等的废气门的调节 在精确度和响应方面的调节,降低成本。 可以使用包括两个不同的调节功能的同一个控制装置(31),因为不能同时产生怠速和充气压力的调节。 根据检测到的发动机参数,控制装置选择用于调节的功能,优选地是节气门位置传感器(16)。
    • 3. 发明申请
    • METHOD AND SYSTEM FOR CONTROLLING COMBUSTION ENGINES
    • 用于控制燃烧发动机的方法和系统
    • WO1996005421A1
    • 1996-02-22
    • PCT/SE1995000914
    • 1995-08-08
    • MECEL ABNYTOMT, Jan
    • MECEL AB
    • F02D41/26
    • F02D41/266F02D41/1405F02D41/1456F02D41/1473F02D41/2432F02D41/2477F02D2041/1433F02P5/1502G05B13/027Y02T10/46
    • The invention relates to a method for a combustion engine using a neural net controlling the primary values, preferably ignition timing or amount of fuel but also the charge pressure, and a learning system for the neural net used. By using at least engine speed and engine load as input signals supplied to a neural net, and learning the neural net to create the necessary value for the primary value in concern dependent of the input parameters, is a smoother control of the combustion engine obtained without steep transitions between different operating cases. The control based upon a neural net exhibit considerable advantages compared to the conventional method having current amount of fuels or ignition timings of interest stored in a map containing primary values thereof. The neural net is trained by using a temporary connected learning computer (10) having an additional linear lambda sensor (5), and the current value of the primary value calculated by the learning computer is used as a target value when optimising the weight factors of the neural net, which optimisation is performed in order to reduce the deviation between the output signal from the neural net and the output signal from the learning computer. When disconnecting the learning computer, which is done when the learning process of the neural net is completed and the deviation is within acceptable limits, is a switch device (12) connecting the neural net for further control of the primary value.
    • 本发明涉及一种使用控制主要值,优选点火正时或燃料量的神经网络以及充电压力的内燃机的方法,以及用于所使用的神经网络的学习系统。 通过使用至少发动机转速和发动机负载作为提供给神经网络的输入信号,并且学习神经网络以获得关于输入参数的主要值的必要值,是对没有 不同操作案例之间的陡峭过渡。 基于神经网络的控制与具有存储在包含其主要值的映射的当前燃料量或点火定时的常规方法相比具有显着的优点。 通过使用具有附加线性λ传感器(5)的临时连接的学习计算机(10)来训练神经网络,并且当优化学习计算机计算出的主值的当前值作为目标值时,优化权重因子 神经网络进行优化,以减少来自神经网络的输出信号与来自学习计算机的输出信号之间的偏差。 当断开学习计算机时,当完成神经网络的学习过程并且偏差在可接受的限度内时,学习计算机是连接神经网络以进一步控制主要值的开关装置(12)。
    • 4. 发明申请
    • ARRANGEMENT AND PROCESS FOR COMMUNICATION BETWEEN AN IGNITION MODULE AND CONTROL UNIT IN A COMBUSTION ENGINE'S IGNITION SYSTEM
    • 燃油发动机点火系统中的点火模块和控制单元之间的通信的布置和过程
    • WO1998022708A1
    • 1998-05-28
    • PCT/SE1997001930
    • 1997-11-17
    • MECEL ABGÖRAS, AndersNYTOMT, Jan
    • MECEL AB
    • F02P03/00
    • F02P3/0456F02P15/08F02P17/12
    • The invention refers to an arrangement and a process for communication between an ignition module (ICM) mounted on an engine and a control unit (ECM). The ignition module includes locally detecting circuits and signal processing stages in order to determine at least one combustion related parameter from detected ionisation currents in the combustion chamber (22). The control unit (ECM) communicates with the ignition module via at least one bi-directional communication wire (KCQ or KKI). Via the communication wire the control unit activates the detection in the ignition module, and the ignition module sends a signal corresponding to the magnitude of the detected parameter to the control unit on the same communication wire. Activation and transfer of parameter data is conducted sequentially over the communication wire. The number of wires and contact points can be reduced by means of the invention, which ensures a more reliable and less expensive ignition system. The partitioning also implies that the ignition module can be standardised, and the measuring windows which are to be activated can easily be adjusted for different types of engine by means of modifying the control unit's software.
    • 本发明涉及安装在发动机上的点火模块(ICM)和控制单元(ECM)之间的通信装置和过程。 点火模块包括局部检测电路和信号处理阶段,以便根据来自燃烧室(22)中的检测到的电离电流确定至少一个燃烧相关参数。 控制单元(ECM)经由至少一个双向通信线(KCQ或KKI)与点火模块通信。 通过通信线,控制单元激活点火模块中的检测,并且点火模块将与检测到的参数的大小相对应的信号发送到同一通信线路上的控制单元。 参数数据的激活和传输是通过通讯线顺序进行的。 可以通过本发明减少电线和接触点的数量,这确保了更可靠和更便宜的点火系统。 分段还意味着点火模块可以被标准化,并且通过修改控制单元的软件,可以容易地对不同类型的发动机调整待激活的测量窗口。
    • 5. 发明申请
    • METHOD FOR IGNITION TIMING CONTROL IN COMBUSTION ENGINES
    • 燃烧引擎点火时序控制方法
    • WO1996005427A1
    • 1996-02-22
    • PCT/SE1995000912
    • 1995-08-08
    • MECEL ABJOHANSSON, HansNYTOMT, Jan
    • MECEL AB
    • F02P05/153
    • F02P17/12F02D35/021F02D41/28F02D2041/286F02D2200/1004F02D2200/1015F02P5/153F02P2017/125F02P2017/128Y02T10/46
    • The invention relates to an improved method applied in combustion engines, which method uses the ionisation current in the combustion chamber in order to extract a parameter representative for the pressure in the cylinder, which parameter is used for controlling the ignition timing whithin an extended range of the load and speed range. Detection of the peak pressure position by detecting when the first order derivative of the ionisation current changes sign exhibits deficiencies at certain operating cases such as low loads and speeds, due to that the first order derivative change sign a number of times during the post-ionisation phase. The inventive method is based on an integration of a parameter dependent of the ionisation current. In a first embodiment is the mass centre position of the integral calculated, which mass centre position is used as a position corresponding to the peak pressure position. The ignition timing is adjusted in such a manner that the mass centre position, and hence the peak pressure position, strives to obtain a predetermined target value. In a second embodiment an integrated value is calculated, which takes into account the mechanics of the combustion engine in such a way that the integrated value corresponds to a value representative of the torque transmitted to the crankshaft. By optimising the integrated value, the torque transmitted to the crankshaft could be optimised as well, obtaining an optimal usage of the fuel-air mixture supplied.
    • 本发明涉及一种在燃烧发动机中应用的改进方法,该方法使用燃烧室中的电离电流,以便提取代表气缸压力的参数,该参数用于在扩展范围内控制点火时间 负载和速度范围。 通过检测电离电流的一阶导数何时变化的迹象来检测峰值压力位置,在某些操作情况下,例如低负载和速度,表现出缺陷,这是由于一阶导数变化在电离后电离次数 相。 本发明的方法基于依赖于电离电流的参数的积分。 在第一实施例中,所计算的积分的质量中心位置,该质心中心位置用作对应于峰值压力位置的位置。 调整点火正时,使得质量中心位置,从而使峰值压力位置努力获得预定的目标值。 在第二实施例中,计算积分值,其以考虑到内燃机的力学的方式计算积分值,使得积分值对应于表示传递到曲轴的扭矩的值。 通过优化积分值,可以优化传递到曲轴的扭矩,从而获得所提供的燃料 - 空气混合物的最佳使用。
    • 6. 发明申请
    • METHOD AND SYSTEM FOR AN ADAPTIVE FUEL CONTROL IN TWO-STROKE ENGINES
    • 用于两冲程发动机的自适应燃料控制的方法和系统
    • WO1996005419A1
    • 1996-02-22
    • PCT/SE1995000915
    • 1995-08-08
    • MECEL ABJOHANSSON, HansNYTOMT, Jan
    • MECEL AB
    • F02D35/02
    • F02D41/1497F02B2075/025F02D35/021F02D35/027F02D41/2458F02D2200/1015F02D2400/04
    • The invention relates to a method and system for adaptive correction of the amount of fuel supplied in two-stroke combustion engines. During a continuous operation period is the air-fuel mixture regulated by force in increments in the lean direction ( DELTA F ) respectively in the rich direction ( DELTA F ), whereby the fuel amounts (F) could be established which causes knocking (KNOCK) respectively four-stroking or misfiring (4-ST). These limit values are stored as a lean limit value MFK respectively a rich limit value MF4ST. For further operation of the combustion engine is a corrected fuel amount Fkorr, used, which is corrected in relation to the fuel amount Ftab given from an empirically determined value stored in a map, and dependent of the established lean limit value MFK respectively the rich limit value MF4ST. The fuel amount (F) supplied will suitably be given according the function: F = Fkorr = MFK + K . (MF4ST - MFK), where K is a margin factor which defines if further operation of the engine will be controlled having an equidistant margin towards a knocking condition respectively a four-stroking or misfire condition, if K is set to a value of 0.5, or if further operation will be controlled toward leaner air-fuel ratios, if K is set to a value below 0.5. Further control could thus be made having a fixed relative margin towards a knocking condition as well as a four-stroking condition.
    • 本发明涉及一种用于自适应校正在二冲程燃烧发动机中供应的燃料量的方法和系统。 在连续运行期间,空气 - 燃料混合物分别以富方向(DELTA F +)分别以稀薄方向(DELTA F - )以增量强制调节,从而可以建立燃料量(F) 这导致敲击(KNOCK)分别四次敲击或失火(4-ST)。 这些极限值分别作为稀有极限值MFK作为丰富极限值MF4ST存储。 对于内燃机的进一步操作是使用的校正燃料量Fkorr,其相对于从存储在地图中的经验确定值给出的燃料量Ftab进行校正,并且分别取决于所建立的稀薄极限值MFK的丰富极限 值MF4ST。 供给的燃料量(F)将根据以下函数给出:F = Fkorr = MFK + K。 (MF4ST-MFK),其中K是一个边界因子,其定义如果将K设置为0.5的值,则将进一步控制发动机的进一步操作是否具有分别与敲击条件相等的四冲程或失火状态的等距距离, 或者如果将K设置为低于0.5的值,则将进一步控制更精细的空燃比。 因此可以进一步控制具有朝向敲击状态的固定相对裕度以及四冲程状态。
    • 7. 发明申请
    • ARRANGEMENTS AND PROCEDURE FOR IONISATION DETECTION WITHIN MULTI-CYLINDER COMBUSTION ENGINES
    • 在多缸燃烧发动机中进行放电检测的安排和程序
    • WO1998022709A1
    • 1998-05-28
    • PCT/SE1997001929
    • 1997-11-17
    • MECEL ABNYTOMT, Jan
    • MECEL AB
    • F02P17/00
    • F02D41/009F02D2041/0092F02P17/12G01N27/626
    • The invention concerns an arrangement and procedure for detection of ionisation in the combustion chamber of a multi-cylinder, four-stroke engine, in which at least the pistons of the first and second chambers run in parallel, but phase-displaced as of the working phases of the four-stroke cycle. Two measuring circuits (39a, 39b) respectively connected to a measuring gap (24a-24d) in the first and second combustion chamber are employed for detection of ionisation in the combustion chambers. In order to reduce the costs incurred upon the system, a switch (51) has been used which alternately connects each measuring circuit to a signal-processing unit (44). Hereby, a cylinder identification can be accomplished by detection of the ionisation degree in the combustion chamber by using one signal-processing unit only. The invention entails a complete utilisation of ionisation detection where a cam-shaft sensor is not of required use for cylinder identification, and where a number of combustion related parameters can be detected at low system cost by using only one signal processing unit comprising a number of signal processing stages (52a, 53a and 52b, 53b).
    • 本发明涉及用于检测多缸四冲程发动机的燃烧室中的电离的装置和程序,其中至少第一和第二室的活塞平行运行,但是相对于工作 四冲程循环的阶段。 分别连接到第一和第二燃烧室中的测量间隙(24a-24d)的两个测量电路(39a,39b)用于检测燃烧室中的电离。 为了减少在系统上产生的成本,已经使用了将每个测量电路交替地连接到信号处理单元(44)的开关(51)。 因此,可以通过仅使用一个信号处理单元检测燃烧室中的电离度来实现圆筒识别。 本发明需要完全利用电离检测,其中凸轮轴传感器不需要用于气缸识别,并且其中可以以低系统成本检测多个燃烧相关参数,其中仅使用一个信号处理单元,其包括多个 信号处理级(52a,53a和52b,53b)。
    • 8. 发明申请
    • METHOD AND SYSTEM FOR CONTROLLING COMBUSTION ENGINES
    • 用于控制燃烧发动机的方法和系统
    • WO1996022458A1
    • 1996-07-25
    • PCT/SE1996000048
    • 1996-01-18
    • MECEL ABNYTOMT, JanJOHANSSON, Thomas
    • MECEL AB
    • F02D41/14
    • F02D35/021F02D41/0085F02D41/1456F02D41/1458
    • The invention relates to a method and system for controlling combustion engines by detection of the present air/fuel ratio within the cylinders of the combustion engine, using an analysis of the characteristics of the ionisation current, as detected via a measuring gap with a bias voltage applied being arranged in the combustion chamber, preferably using the spark plug gap in an Otto-engine. A measuring voltage corresponding to the degree of ionisation is detected during the flame ionisation phase and during a time- or crankshaft position dependent period A, B, C or D, which duration is dependent of the present air/fuel ratio, and at finally will be finished by an amplitude maximum PF during the flame ionisation phase. A parameter characteristic for the fundamental frequency of the measuring voltage during the period A, B, C or D is detected, which parameter indicates a tendency towards the rich direction of stochiometric when the fundamental frequency increases, and inversely indicates lean tendency when the fundamental frequency decreases. The fundamental frequency is preferably detected from the differential value of the measuring voltage during the period A, B, C or D, in respect of time t or crankshaft degrees VC, dUION/dt respectively dUION/dVC. The differential value multiplied with a constant is used at least partly when determining a relative or absolute air/fuel ratio.
    • 本发明涉及一种用于通过利用电离电流的特性的分析来检测燃烧发动机的气缸内的当前空气/燃料比来控制内燃机的方法和系统,该分析通过具有偏置电压的测量间隙 施加在燃烧室中,优选地使用奥托发动机中的火花塞间隙。 在火焰离子化阶段期间和在时间或曲轴位置相关时间段A,B,C或D期间检测到与离子化程度相对应的测量电压,其持续时间取决于当前的空气/燃料比,并且最终将 在火焰离子化阶段通过振幅最大PF完成。 检测在A,B,C或D期间测量电压基频的参数特性,该参数表示当基频增加时朝向浓度方向的趋势,当基频 降低。 相对于时间t或曲轴度VC,dUION / dt分别为dUION / dVC,测量电压的周期A,B,C或D中的测量电压的差分值优选地检测基频。 当确定相对或绝对的空气/燃料比时,至少部分地使用与常数相乘的微分值。
    • 9. 发明申请
    • CONNECTION DEVICE IN AN IGNITION SYSTEM
    • 点火系统中的连接装置
    • WO1985000931A1
    • 1985-02-28
    • PCT/SE1984000244
    • 1984-06-28
    • SAAB-SCANIA AKTIEBOLAGJOHANSSON, Sven, HansNYTOMT, Jan, Gunnar
    • SAAB-SCANIA AKTIEBOLAG
    • H01T13/04
    • H01T13/04
    • Connection device in an ignition system for transferring high-tension current to the spark plugs of an internal combustion engine, each connection device (5) including a comparatively rigid outer sleeve (6) which is intended to surround the upper part (8) of a spark plug, to obtain conductive communication with a central electrode (13) of the spark plug via a contact means (15) arranged in the connection device (5). With the object of creating an effectively sealed connection between the connection device (5) and the spark plug (3), as well as substantially reducing the force required to remove the connection device (5) from the spark plug (3), the connection device (5) includes an elastic inner sleeve (7) enclosed by the outer sleeve (6), the inner sleeve tightly sealing against the upper portion (8) of the spark plug when the connection device (5) is fitted to the spark plug (3), a space being formed between the inner (7) and the outer sleeve (6) for allowing radial expansion of the inner sleeve (7). The invention is characterized in that the lower portions of the outer sleeve (6) and the inner sleeve (7) include portions coacting for force transfer between the sleeves (6, 7), whereby for an upwardly directed force on a connection device (5) fitted to a spark plug, force is transferred to the inner sleeve (7) and causes it to expand radially so that its grip round the spark plug decreases.
    • 在用于将高压电流传递到内燃机的火花塞的点火系统中的连接装置,每个连接装置(5)包括相对刚性的外套筒(6),所述相对刚性的外套筒(6)旨在围绕内部燃烧器的上部(8) 火花塞,以经由布置在连接装置(5)中的接触装置(15)获得与火花塞的中心电极(13)的导电连通。 为了在连接装置(5)和火花塞(3)之间创建有效密封的连接,并且基本上减少从火花塞(3)移除连接装置(5)所需的力,连接 装置(5)包括由外套筒(6)包围的弹性内套筒(7),当将连接装置(5)装配到火花塞上时,内套筒紧紧地密封着火花塞的上部分(8) (3),在所述内部(7)和所述外部套筒(6)之间形成用于允许所述内部套筒(7)径向膨胀的空间。 本发明的特征在于,外套筒(6)和内套筒(7)的下部包括共同作用以在套筒(6,7)之间传递力的部分,从而为了连接装置(5)上的向上定向的力 )安装到火花塞上,力传递到内套筒(7)并使其径向扩张,使得其在火花塞周围的手柄减小。
    • 10. 发明申请
    • METHOD AND SYSTEM FOR KNOCK DETECTION
    • 用于锁定检测的方法和系统
    • WO2007040447A1
    • 2007-04-12
    • PCT/SE2006/050297
    • 2006-08-28
    • MECEL ENGINE SYSTEMS AKTIEBOLAGNYTOMT, JanGÖRAS, AndersÄNGEBY, JakobANDERSSON, HenricSÖRQVIST, ChristianCARLSSON, Tomas
    • NYTOMT, JanGÖRAS, AndersÄNGEBY, JakobANDERSSON, HenricSÖRQVIST, ChristianCARLSSON, Tomas
    • G01L23/22
    • G01L23/225
    • This invention relates to a method for knock detection in a combustion engine, in which combustion is controlled by a control unit (2), which comprises the steps of, a) obtaining at least one sensor signal (4, 4') carrying information of knock intensity within a combustion chamber of the combustion engine (1); (b) processing the sensor signal (4, 4') to obtain a knock intensity related detection variable (z 1 ), (c) using said detection variable (z 1 ) in said control unit (2) arranged to avoid a knocking condition in said combustion engine (1), if the value (z 1 ) of said detection variable indicates knock when compared with a threshold value (T) wherein, using two different computations/processes for said processing (5, 6) of the at least one sensor signal (4, 4') to obtain two separate sub-values (y 1 , y 2 ), and thereafter combining said sub-values (y l , y 2 ) to obtain said detection variable (z 1 ).
    • 本发明涉及一种用于在燃烧发动机中进行爆震检测的方法,其中燃烧由控制单元(2)控制,其包括以下步骤:a)获得至少一个传送信号(4,4'),该传感器信号携带 在内燃机(1)的燃烧室内的爆震强度; (b)处理所述传感器信号(4,4')以获得爆震强度相关检测变量(z1> 1),(c)使用所述检测变量(z <1> ),如果所述检测变量的值(z <1> 1)与阈值(T)相比表示爆震,则在所述控制单元(2)中布置成避免所述内燃机(1)中的爆震条件 ),其中使用用于所述至少一个传感器信号(4,4')的所述处理(5,6)的两个不同计算/处理来获得两个单独的子值(y 1, SUB&gt; 2&gt;),然后组合所述子值(y 1,L 2,y 2)以获得所述检测变量(z < SUB>)。