公开(公告)号：US06796169B2

公开(公告)日：2004-09-28

申请号：US10352173

申请日：2003-01-28

申请人： Tomokazu Makino ,  Shiro Yonezawa ,  Eiji Kanazawa ,  Takuo Watanuki

发明人： Tomokazu Makino ,  Shiro Yonezawa ,  Eiji Kanazawa ,  Takuo Watanuki

IPC分类号： G01M1500

CPC分类号： G01M15/06

摘要： A cylinder identifying system for detecting reference position on a per cylinder basis with high accuracy and reliability independently of rotation states of an engine includes a means (31) for generating a plurality of crank angle pulses during rotation of a crankshaft (12), a means (21) for generating cylinder identifying pulses during rotation of a cam shaft (11), a means (40) for detecting reference positions on the basis of the crank angle pulses, a means (40) for setting cylinder identifying intervals with reference to the reference positions, a means (40) for identifying cylinders on the basis of the cylinder identifying pulse signals in the cylinder identifying intervals, and a means (40) for detecting low and high rotation speed ranges of the engine (10). Procedures of first and second performance specifications corresponding to low and high engine rotation speed ranges are changed over in dependence on the engine operation states.

摘要翻译： 一种用于独立于发动机的旋转状态以高精度和可靠性检测基于每个气缸的基准位置的气缸识别系统，包括用于在曲轴（12）旋转期间产生多个曲柄角脉冲的装置（31） （21），用于在凸轮轴（11）的旋转期间产生气缸识别脉冲，用于基于曲柄角脉冲检测参考位置的装置（40），用于参考曲柄角度脉冲设置气缸识别间隔的装置（40） 参考位置，用于基于气缸识别气缸识别间隔中的脉冲信号来识别气缸的装置（40），以及用于检测发动机（10）的低转速和高转速范围的装置（40）。 根据发动机运转状态，改变对应于低，高发动机转速范围的第一和第二性能规格的程序。

公开(公告)号：US06745121B2

公开(公告)日：2004-06-01

申请号：US10288467

申请日：2002-11-06

申请人： Takuo Watanuki ,  Eiji Kanazawa ,  Shiro Yonezawa ,  Tomokazu Makino

发明人： Takuo Watanuki ,  Eiji Kanazawa ,  Shiro Yonezawa ,  Tomokazu Makino

IPC分类号： F02P515

CPC分类号： F02D41/009 ,  F02D2041/001

摘要： A crank angle position signal is generated which corresponds to rotational angles of a crankshaft and includes a specific signal for obtaining reference crank angle positions of cylinders. A cylinder identification signal is generated corresponding to the respective cylinders in accordance with the rotation of at least one of an intake-side cam and an exhaust-side cam which are subjected to VVT control. Correlation between the reference crank angle positions and cylinder groups is specified based on a combination of the reference crank angle positions and the cylinder identification signal. Cylinder identification ranges of a prescribed angular length in consideration of an advance angle and a retard angle are set based on the reference crank angle positions. The cylinders are identified based on the reference crank angle positions whose correlation with cylinder groups within each of the cylinder identification ranges has been specified, and the cylinder identification signal.

摘要翻译： 产生对应于曲轴的旋转角度的曲柄角位置信号，并且包括用于获得气缸的参考曲柄角位置的特定信号。 根据进行VVT控制的进气侧凸轮和排气侧凸轮中的至少一个的旋转，对应于各气缸产生气缸识别信号。 参考曲柄角位置和气缸组之间的相关性基于参考曲柄角位置和气缸识别信号的组合来指定。 基于参考曲柄角位置来设定考虑到前进角度和延迟角度的规定角度长度的圆筒识别范围。 基于与各缸体识别范围内的气缸组相关联的参考曲柄角位置和气缸识别信号来识别气缸。

公开(公告)号：US06732713B1

公开(公告)日：2004-05-11

申请号：US10417192

申请日：2003-04-17

申请人： Eiji Kanazawa ,  Shiro Yonezawa ,  Tomokazu Makino ,  Takuo Watanuki

发明人： Eiji Kanazawa ,  Shiro Yonezawa ,  Tomokazu Makino ,  Takuo Watanuki

IPC分类号： F02M5100

CPC分类号： F02D41/009 ,  F02D41/062 ,  F02D2250/06

摘要： Even if the engine is started from any crank angle position, it is possible to correctly determine the rotational direction of a crankshaft, so that fuel injection or ignition can be stopped when the crankshaft is rotating in the reverse direction. A measurement member has a plurality of angular position detection portions arranged at equal intervals in a circumferential direction of the crankshaft and a plurality of reference position detection portions at which a part of the angular position detection portions is missing. A crank angle sensor is arranged near the measurement member for generating a crank angle signal representative of the rotational position of the crankshaft. A period detector detects periods of pulses of the crank angle signal. A reference position determiner determines a plurality of reference positions based on the signal periods. A counter counts the pulses of the crank angle signal. A rotational direction determiner detects the rotational direction of the crankshaft from the number of pulses counted between a plurality of reference positions.

摘要翻译： 即使发动机从任何曲柄角位置启动，也可以正确地确定曲轴的旋转方向，使得当曲轴沿相反方向旋转时可以停止燃料喷射或点火。 测量构件具有在曲轴的圆周方向上以等间隔布置的多个角位置检测部分和多个基准位置检测部分，其中一部分角位置检测部分缺失。 曲柄角传感器设置在测量构件附近，用于产生表示曲轴的旋转位置的曲柄角信号。 周期检测器检测曲柄角信号的脉冲周期。 参考位置确定器基于信号周期来确定多个参考位置。 计数器对曲柄角信号的脉冲进行计数。 旋转方向确定器根据在多个参考位置之间计数的脉冲数来检测曲轴的旋转方向。

公开(公告)号：US09261031B2

公开(公告)日：2016-02-16

申请号：US13614743

申请日：2012-09-13

申请人： Takuo Watanuki ,  Hideki Hagari

发明人： Takuo Watanuki ,  Hideki Hagari

IPC分类号： B60T7/12 ,  F02D23/02 ,  F02B37/16 ,  F02B37/18 ,  F02B39/16 ,  F02D41/00 ,  F02D41/18 ,  F02B33/44

CPC分类号： F02D23/02 ,  F02B33/44 ,  F02B37/16 ,  F02B37/18 ,  F02B39/16 ,  F02D41/0007 ,  F02D41/18 ,  F02D2200/0406 ,  F02D2200/0414 ,  Y02T10/144

摘要： Provided is a control device for an internal combustion engine, capable of controlling acceleration-response characteristics, performing an operation at an optimal fuel-efficiency point, and learning variation factors in an internal combustion engine provided with a supercharger including a wastegate valve. A target throttle-valve upstream pressure is calculated based on a target charging efficiency and a rotation speed. An exhaust-gas flow rate is calculated based on an air/fuel ratio and an intake-airflow rate. A target compressor driving force is calculated based on a target intake-airflow rate and a target throttle-valve upstream pressure. A wastegate-valve control value is calculated from the exhaust-gas flow rate and the target compressor driving force by using the relationship in which the relation expression expressing the characteristics of the exhaust-gas flow rate and the target compressor driving force depends only on the wastegate-valve control value.

摘要翻译： 提供一种内燃机的控制装置，其能够控制加速度响应特性，在最佳燃料效率点进行操作，以及学习在设置有包括废气门阀的增压器的内燃机中的变化因素。 基于目标充电效率和转速来计算目标节流阀上游压力。 基于空气/燃料比和进气量来计算废气流量。 基于目标吸气流量和目标节流阀上游压力来计算目标压缩机驱动力。 通过使用表示排气流量特性和目标压缩机驱动力的关系表达式的关系仅根据废气流量控制值和目标压缩机驱动力的关系来计算排气门控制值 废门阀控制值。