公开(公告)号：US07000586B2

公开(公告)日：2006-02-21

申请号：US10851648

申请日：2004-05-24

申请人： Akira Kato ,  Toru Kitamura ,  Tomio Kimura ,  Shohei Okazaki ,  Toshihiro Yamaki ,  Katsura Okubo

发明人： Akira Kato ,  Toru Kitamura ,  Tomio Kimura ,  Shohei Okazaki ,  Toshihiro Yamaki ,  Katsura Okubo

IPC分类号： F02B5/00 ,  F02M25/07 ,  F02D41/04

CPC分类号： F01N3/0842 ,  F01N3/0807 ,  F01N2430/085 ,  F02B1/12 ,  F02D41/006 ,  F02D41/3035 ,  F02D41/401 ,  F02D2200/703 ,  Y02T10/44

摘要： A controller for an internal combustion engine capable of performing a compression ignition operation. The internal combustion engine includes a combustion chamber, and a fuel injector for injecting fuel directly in the combustion chamber. The controller includes: an air pressure detecting unit configured to detect at least one of an air pressure and an exhaust air pressure; and a fuel injection control unit configured to actuate the fuel injector to control a fuel injection timing according to a detected result by the air pressure detecting unit. The fuel injection control unit puts the fuel injection timing forward as the detected result by the air pressure detecting unit is lowered.

摘要翻译： 一种用于执行压缩点火操作的内燃机的控制器。 内燃机包括燃烧室和用于直接在燃烧室中喷射燃料的燃料喷射器。 控制器包括：气压检测单元，被配置为检测空气压力和排气压力中的至少一个; 以及燃料喷射控制单元，其构造成根据气压检测单元的检测结果致动燃料喷射器以控制燃料喷射正时。 燃料喷射控制单元随着气压检测单元的检测结果降低而将燃料喷射正时向前。

公开(公告)号：US07121233B2

公开(公告)日：2006-10-17

申请号：US10821174

申请日：2004-04-09

申请人： Tohru Kitamura ,  Toshihiro Yamaki ,  Tomio Kimura ,  Shohei Okazaki ,  Katsura Okubo ,  Akira Kato

发明人： Tohru Kitamura ,  Toshihiro Yamaki ,  Tomio Kimura ,  Shohei Okazaki ,  Katsura Okubo ,  Akira Kato

IPC分类号： F02B3/00

CPC分类号： F02D41/3035 ,  F02B1/12 ,  F02B11/00 ,  F02D41/126 ,  F02D41/1456 ,  F02D41/3076 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414

摘要： A control apparatus for an internal combustion engine that is capable of switching between compression ignition combustion and spark ignition combustion is provided. The control apparatus is configured to perform fuel cut. The spark ignition combustion is performed over a time period after the fuel cut. The compression ignition combustion is permitted when the time period elapses. Fuel cut decreases the temperature within the combustion chamber. According to the invention, if fuel cut is performed, the temperature within the combustion chamber is raised by the spark ignition combustion. Since the compression ignition combustion is permitted after the temperature within the combustion chamber rises, engine misfire and an increase of NOx emission are prevented. The time period is preferably determined based on the temperature within the combustion chamber immediately before the fuel cut is performed.

摘要翻译： 提供一种能够在压缩点火燃烧和火花点火燃烧之间切换的用于内燃机的控制装置。 控制装置构成为进行燃料切断。 在燃料切断后的一段时间内进行火花点火燃烧。 当时间段过去时，允许压缩点火燃烧。 燃料切割降低了燃烧室内的温度。 根据本发明，如果进行燃料切断，则通过火花点火燃烧使燃烧室内的温度上升。 由于在燃烧室内的温度上升之后允许压缩点火燃烧，因此防止发动机失火和NOx排放的增加。 该时间段优选基于紧接燃料切断之前的燃烧室内的温度来确定。

公开(公告)号：US07082898B2

公开(公告)日：2006-08-01

申请号：US10817956

申请日：2004-04-06

申请人： Tohru Kitamura ,  Tomio Kimura ,  Shohei Okazaki ,  Akira Kato ,  Toshihiro Yamaki ,  Katsura Okubo ,  Moriyoshi Awasaka ,  Junji Yasuda ,  Yasuhiro Urata ,  Takashi Kakinuma ,  Yoshimasa Kaneko

发明人： Tohru Kitamura ,  Tomio Kimura ,  Shohei Okazaki ,  Akira Kato ,  Toshihiro Yamaki ,  Katsura Okubo ,  Moriyoshi Awasaka ,  Junji Yasuda ,  Yasuhiro Urata ,  Takashi Kakinuma ,  Yoshimasa Kaneko

IPC分类号： F02B1/14

CPC分类号： F02D41/3058 ,  F02B1/12 ,  F02B3/06 ,  F02B69/06 ,  F02D41/3035

摘要： The present invention aims at expanding an operation range for allowing a compression ignition combustion operation. The present invention provides an internal combustion engine of a compression ignition type that is capable of operating with a compression ignition combustion scheme in a given operation range. The ECU of the internal combustion engine detects an operating condition of the internal combustion engine and determines, according to the detected operating condition, which mode is to be used operate the internal combustion engine, a 4-cycle compression ignition mode or a 2-cycle compression ignition mode. The ECU controls the internal compression engine to perform the compression ignition mode determined. According to the present invention, the compression ignition combustion operation is switched from 4-cycle to 2-cycle when the operating condition of the internal combustion engine is in such state that the 4-cycle compression ignition mode cannot be performed, fro example, when the exhaust temperature is low.

摘要翻译： 本发明旨在扩大用于允许压缩点火燃烧操作的操作范围。 本发明提供一种压缩点火式的内燃机，其能够在给定的操作范围内使用压缩点火燃烧方案。 内燃机的ECU检测内燃机的运转状态，根据检测到的运转状况，判断要使用哪种运行方式的内燃机，4循环压缩点火模式或2循环 压缩点火模式。 ECU控制内部压缩引擎执行压缩点火模式。 根据本发明，当内燃机的运行状态处于不能进行4循环压缩点火模式的状态时，压缩点火燃烧运转从4循环切换到2循环，例如，当 排气温度低。

公开(公告)号：US06848435B2

公开(公告)日：2005-02-01

申请号：US10868033

申请日：2004-06-16

申请人： Toru Kitamura ,  Yoshimasa Kaneko ,  Toshihiro Yamaki

发明人： Toru Kitamura ,  Yoshimasa Kaneko ,  Toshihiro Yamaki

IPC分类号： F02B11/00 ,  F02D13/02 ,  F02D21/08 ,  F02D41/02 ,  F02D45/00 ,  F02M25/07 ,  F02B47/08

CPC分类号： F02M26/47 ,  F02M26/01

摘要： A control system for a compression ignition internal combustion engine, which is capable of properly estimating the temperature of combustion gases, and thereby accurately controlling the temperature of working medium according to the estimated temperature of the combustion gases, to thereby prevent knocking and misfire from occurring. A compression ignition internal combustion engine causes combustion of an air-fuel mixture by self-ignition in a combustion chamber, and includes an EGR device that causes part of combustion gases generated by the combustion to exist as EGR gases in the combustion chamber. The control system estimates the amount of EGR gases existing in the combustion chamber, estimates the temperature of combustion gases generated by combustion of working medium including the air-fuel mixture and the EGR gases, according to the estimated amount of the EGR gases, and determines the amount of the EGR gases which should be caused to exist in the combustion chamber, according to the estimated temperature of the combustion gases.

摘要翻译： 一种用于压缩点火内燃机的控制系统，其能够适当地估计燃烧气体的温度，从而根据估计的燃烧气体温度精确地控制工作介质的温度，从而防止发生爆震和失火 。 压缩点火式内燃机在燃烧室中通过自点火引起空燃混合物的燃烧，并且包括使燃烧产生的燃烧气体的一部分作为EGR气体存在于燃烧室中的EGR装置。 控制系统估计存在于燃烧室中的EGR气体的量，根据EGR气体的估计量来估计包括空气 - 燃料混合物和EGR气体在内的工作介质的燃烧产生的燃烧气体的温度，并且确定 根据燃烧气体的估计温度，应该在燃烧室中存在的EGR气体的量。

公开(公告)号：US06925975B2

公开(公告)日：2005-08-09

申请号：US10068031

申请日：2002-02-06

申请人： Hidetaka Ozawa ,  Kenji Abe ,  Yoshitomo Kouno ,  Minoru Nakamura ,  Toshihiro Yamaki ,  Yasuo Shimizu

发明人： Hidetaka Ozawa ,  Kenji Abe ,  Yoshitomo Kouno ,  Minoru Nakamura ,  Toshihiro Yamaki ,  Yasuo Shimizu

IPC分类号： F01L9/04 ,  F02D13/02 ,  F02D41/20 ,  F16K31/06 ,  H01F7/16 ,  H01F7/18

CPC分类号： F01L9/04 ,  F01L2009/0436 ,  F02D13/0207 ,  F02D13/0253 ,  F02D41/20 ,  F02D2041/001 ,  Y02T10/18

摘要： A controller for an electromagnetic actuator comprises a pair of springs acting on opposite directions, and an armature connected to the springs. The armature is held in a neutral position given by the springs when the armature is not activated. The actuator also comprises a pair of electromagnets for driving the armature between two end positions. In response to a release of the armature held in one of the end positions, the controller applies brake to the armature according to a load condition of the armature. In high-load conditions, the valve can surely be opened without additional electric power. In low-load conditions, the armature is prevented from colliding with a yoke of the electromagnet. The application of brake includes over-excitation operation, flywheel operation and suspension of power supply. In the over-excitation operation, voltage is applied to the electromagnet corresponding to one of the end positions from which the armature is released for a first period. The first period may be determined according to a load condition of the armature. After the first period elapses, flywheel current is supplied to the electromagnet for a second period. After the second period elapses, power supply to the electromagnet is suspended. Appropriate combination of over-excitation operation, flywheel operation and suspension of power supply allows the braking force to be adjusted according to a load condition of the armature.

摘要翻译： 用于电磁致动器的控制器包括作用在相反方向上的一对弹簧和连接到弹簧的电枢。 当电枢未激活时，电枢被保持在弹簧给定的中立位置。 致动器还包括用于在两个端部位置之间驱动电枢的一对电磁体。 响应于保持在一个端部位置的电枢的释放，控制器根据电枢的负载条件向电枢施加制动。 在高负载条件下，阀门可以无需额外的电力就能打开。 在低负载条件下，防止电枢与电磁铁的轭碰撞。 制动器的应用包括过励磁运行，飞轮运行和电源暂停。 在过激励操作中，电压被施加到对应于电枢被释放第一周期的端部位置之一的电磁体。 可以根据电枢的负载条件来确定第一周期。 经过第一个时间段后，飞轮电流供应给电磁铁第二个周期。 第二个时期过后，电磁铁供电暂停。 过励磁运行，飞轮运行和电源暂停的适当组合允许根据电枢的负载条件来调节制动力。

公开(公告)号：US06705256B2

公开(公告)日：2004-03-16

申请号：US10390912

申请日：2003-03-19

申请人： Toshihiro Yamaki ,  Hidetaka Ozawa ,  Hisao Sakai ,  Kenji Abe

发明人： Toshihiro Yamaki ,  Hidetaka Ozawa ,  Hisao Sakai ,  Kenji Abe

IPC分类号： F01L904

CPC分类号： F01L1/267 ,  F01L1/26 ,  F01L1/46 ,  F01L9/04 ,  F01L2013/0089

摘要： A valve timing control system for an internal combustion engine is provided which is capable of ensuring reliable holding of a valve by an actuator, and attaining energy saving by efficient operation of the actuator. The valve timing control system controls valve-closing timing of a valve opened by a cam provided on a camshaft, by temporarily holding the valve. A response delay of the actuator is predicted as a response delay prediction value. Output timing is set in which a drive signal for driving the actuator is output, according to the predicted response delay prediction value. Holding timing is controlled in which the valve is held by the actuator, by outputting the drive signal to the actuator, based on the set output timing.

摘要翻译： 提供了一种用于内燃机的气门正时控制系统，其能够确保通过致动器可靠地保持阀，并且通过致动器的有效操作实现节能。 气门正时控制系统通过临时保持阀门来控制由设置在凸轮轴上的凸轮打开的阀的关闭正时。 执行器的响应延迟被预测为响应延迟预测值。 根据预测的响应延迟预测值，设定输出用于驱动致动器的驱动信号的输出定时。 通过根据设定的输出定时将致动器的驱动信号输出到致动器来控制保持定时。

公开(公告)号：US06690563B2

公开(公告)日：2004-02-10

申请号：US10052724

申请日：2002-01-18

申请人： Hidetaka Ozawa ,  Kenji Abe ,  Yoshitomo Kouno ,  Minoru Nakamura ,  Toshihiro Yamaki

发明人： Hidetaka Ozawa ,  Kenji Abe ,  Yoshitomo Kouno ,  Minoru Nakamura ,  Toshihiro Yamaki

IPC分类号： H01H900

CPC分类号： F01L9/04 ,  H01F7/1844

摘要： A controller for an electromagnetic actuator comprises a pair of spring acting in opposite directions, and an armature coupled to a mechanical element. The armature is connected to the springs and held in a neutral position given by the springs when the actuator is not activated. The actuator includes a pair of electromagnets for driving the armature between two end positions. The controller includes voltage application means for applying voltage to an electromagnet providing one end position for a first predetermined period so as to attract the armature to the end position. The controller also includes a peak current detector for detecting the peak of current flowing through the electromagnet in the first predetermined period. In accordance with the peak value, a decision means decides the application period of voltage that is to be applied to the electromagnet after the first application period has elapsed. Thus, the armature can make a stable seating at a controlled speed without generating substantial noise.

摘要翻译： 用于电磁致动器的控制器包括沿相反方向作用的一对弹簧和联接到机械元件的电枢。 当致动器未被激活时，电枢连接到弹簧并保持在弹簧给定的中立位置。 致动器包括用于在两个端部位置之间驱动电枢的一对电磁体。 控制器包括用于向提供一个端部位置的电磁体施加电压达第一预定周期的电压施加装置，以便将电枢吸引到终端位置。 控制器还包括峰值电流检测器，用于检测在第一预定周期内流过电磁体的电流的峰值。 根据峰值，决定装置决定在第一施加期间经过后施加于电磁铁的电压的施加期间。 因此，电枢可以以受控的速度进行稳定的就座，而不会产生实质的噪音。

公开(公告)号：US06725816B2

公开(公告)日：2004-04-27

申请号：US10004153

申请日：2001-11-15

申请人： Toshihiro Yamaki ,  Kenji Abe ,  Minoru Nakamura

发明人： Toshihiro Yamaki ,  Kenji Abe ,  Minoru Nakamura

IPC分类号： F01L904

CPC分类号： F01L9/04 ,  F01L2009/0436 ,  F01L2009/0469 ,  F01L2201/00

摘要： In an alternate energization process for alternately energizing a valve closing electromagnet and a valve opening electromagnet periodically, one of the valve opening electromagnet and the valve closing electromagnet is de-energized and thereafter the other electromagnet is de-energized at a time delayed by a predetermined time Toff. The alternate energization process is finished when the displaced position of a valve head which is detected by a displacement sensor has reached a predetermined position Vinit while the valve opening electromagnet is being energized. Thereafter, the valve opening electromagnet is continuously energized to seat the valve head in a closed position (initial position) from the time when the displaced position of the valve head has reached a predetermined position Vstart.

摘要翻译： 在用于周期性地交替地给闭阀电磁体和开阀电磁体供电的替代通电过程中，打开电磁铁和闭阀电磁体中的一个被断电，然后另一个电磁体在延迟预定的时间被断电 时间Toff。 当通过位移传感器检测到的阀头的位移位置在阀开启电磁体通电时已达到预定位置Vinit时，交替通电过程结束。 此后，从阀头的位移位置到达预定位置Vstart的时刻开始，阀开启电磁体被持续通电以将阀头安置在关闭位置（初始位置）。

公开(公告)号：US5979376A

公开(公告)日：1999-11-09

申请号：US895644

申请日：1997-07-17

申请人： Harumi Hatano ,  Toshihiro Yamaki ,  Chihaya Sugimoto ,  Shoichi Ogawa ,  Toshio Yokoyama

发明人： Harumi Hatano ,  Toshihiro Yamaki ,  Chihaya Sugimoto ,  Shoichi Ogawa ,  Toshio Yokoyama

IPC分类号： F01L9/04 ,  F16K31/06

CPC分类号： F01L9/04

摘要： A valve operating system in an internal combustion engine, that can be readily assembled and installed on the engine, including a casing coupled to an upper surface of a cylinder head, an armature, a pair of electromagnets for exerting electromagnetic forces on the armature in directions of opening and closing of an engine valve, and a pair of resilient means for biasing the engine valve in the opening and closing directions, respectively, and for retaining the armature at a predetermined neutral position by cooperation with each other during deenergization of both the electromagnets. The resilient means for closing the engine valve is mounted between a retainer fixed to the valve stem and a fixed position on the cylinder head, and the electromagnets are fixed within the casing which is constructed so that an upper portion of the stem can be inserted into the casing. Accommodated within the casing are the armature separatably coaxially connected at an upper end of the stem, and the resilient means for opening the engine valve and also exhibiting a resilient force for urging the armature against the first electromagnet to support the armature, when the armature is not connected to the stem.

摘要翻译： 一种内燃机中的阀操作系统，其可以容易地组装和安装在发动机上，包括联接到气缸盖的上表面的壳体，电枢，用于在电枢上施加电磁力的一对电磁体 发动机气门的打开和关闭的一对弹性装置，以及用于分别在打开和关闭方向上偏置发动机气门的一对弹性装置，并且用于在两个电磁体的断电期间通过彼此配合将电枢保持在预定的中立位置 。 用于关闭发动机气门的弹性装置安装在固定到阀杆的保持架和气缸盖上的固定位置之间，并且电磁体被固定在壳体内，该壳体被构造为使杆的上部能够插入 套管。 壳体内部容纳有衔铁可分离地同轴连接在杆的上端，以及用于打开发动机气门的弹性装置，并且还具有弹性力，用于当衔铁为衔铁时将衔铁推向第一电磁体以支撑电枢 没有连接到杆。

公开(公告)号：US06729277B2

公开(公告)日：2004-05-04

申请号：US10002845

申请日：2001-11-14

申请人： Toshihiro Yamaki ,  Minoru Nakamura ,  Yoshinori Onohara

发明人： Toshihiro Yamaki ,  Minoru Nakamura ,  Yoshinori Onohara

IPC分类号： F01L904

CPC分类号： F01L9/04

摘要： An electromagnetic valve controller estimates a dead time based on predetermined parameters. A dead time for the current cycle is determined based on the estimated dead time. The controller measures a dead time in the previous cycle. The controller determines a deviation between the dead time measured in the previous cycle and the dead time estimated in the previous cycle. The deviation is added to the dead time estimated in the current cycle to determine the dead time for the current cycle. The controller further determines a target de-energization timing indicating when to execute a valve timing command. The dead time determined for the current cycle is offset or subtracted from the target de-energization timing to determine an actual de-energization timing. An electromagnet of the valve is de-energized in accordance with the actual de-energization timing.

摘要翻译： 电磁阀控制器基于预定参数来估计死区时间。 基于估计的死区时间确定当前周期的死区时间。 控制器测量上一个循环中的死区时间。 控制器确定在上一个循环中测量的死区时间与上一个循环中估计的死区时间之间的偏差。 将偏差加到当前周期中估计的死区时间，以确定当前周期的死区时间。 控制器进一步确定指示何时执行气门正时命令的目标断电定时。 为当前周期确定的死区时间从目标断电定时偏移或减去，以确定实际的断电定时。 阀门的电磁铁根据实际断电时机断电。