公开(公告)号：US06513490B2

公开(公告)日：2003-02-04

申请号：US09727787

申请日：2000-12-04

申请人： Takao Kawasaki ,  Masahiro Arai ,  Hatsuo Nagaishi

发明人： Takao Kawasaki ,  Masahiro Arai ,  Hatsuo Nagaishi

IPC分类号： F02D4100

CPC分类号： F02D13/0234 ,  F01L9/04 ,  F01L2201/00 ,  F02D13/0203 ,  F02D13/0253 ,  F02D41/0002 ,  F02D41/083 ,  F02D43/00 ,  F02D45/00 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/18 ,  Y02T10/42

摘要： A system and method for unthrottled intake air control for an internal combustion engine. The engine has at least one combustion chamber provided with electromagnetic intake means. The opening and closing times of the intake means are adjustable entirely independently from the crankshaft position to control intake air supplied to the combustion chamber. A control unit is used to implement instructions for determining a first portion of requested intake airflow, which first portion requests a first engine response performance, and instructions for determining a second portion of requested intake airflow, which second portion requests a second engine response performance. The control unit implements instructions for processing the first and second airflow portions to make contributions to the first and second engine response performances, respectively, instructions for determining an intake means activation command, and instructions for providing the intake means activation command to the intake means to provide an engine response performance combining the first engine response performance with the second engine response performance.

摘要翻译： 一种用于内燃机的无节流进气调节的系统和方法。 发动机具有设置有电磁进气装置的至少一个燃烧室。 进气装置的打开和关闭时间可以完全独立于曲轴位置进行调节，以控制供给燃烧室的进气。 控制单元用于实现用于确定所请求的进气量的第一部分的指令，该第一部分请求第一发动机响应性能，以及用于确定所请求的进气流的第二部分的指令，该第二部分请求第二发动机响应性能。 控制单元执行用于处理第一和第二气流部分以分别对第一和第二发动机响应性能做出贡献的指令，分别用于确定进气装置启动命令的指令和用于将进气装置启动命令提供给进气装置的指令 提供将第一发动机响应性能与第二发动机响应性能相结合的发动机响应性能。

公开(公告)号：US06513494B2

公开(公告)日：2003-02-04

申请号：US09725710

申请日：2000-11-30

申请人： Takao Kawasaki ,  Hatsuo Nagaishi

发明人： Takao Kawasaki ,  Hatsuo Nagaishi

IPC分类号： F02P500

CPC分类号： F02D45/00 ,  F01L9/04 ,  F02D13/0203 ,  F02D13/0234 ,  F02D13/0253 ,  F02D41/0002 ,  F02D2041/001 ,  F02P5/045 ,  Y02T10/18 ,  Y02T10/42

摘要： A system and method of optimally controlling ignition timings in an engine conditioned in first and second modes of intake control. A control unit includes an unthrottled operation control conducting the first mode by varying a closing timing of an intake valve and fixing a throttle position of a throttle valve, a throttled operation control conducting the second mode by varying the throttle position of the throttle valve and fixing the closing timing of the intake valve, and an ignition timing control determining different ignition timings to be used in the first and second modes.

摘要翻译： 在第一和第二进气模式调节的发动机中最佳地控制点火正时的系统和方法。 控制单元包括通过改变进气门的关闭正时和固定节流阀的节气门位置来进行第一模式的节流操作控制，通过改变节流阀的节气门位置和固定的进行第二模式的节流操作控制 进气门的关闭正时以及确定在第一和第二模式中使用的不同点火正时的点火正时控制。

公开(公告)号：US06189512B1

公开(公告)日：2001-02-20

申请号：US09390685

申请日：1999-09-07

申请人： Takao Kawasaki ,  Hatsuo Nagaishi

发明人： Takao Kawasaki ,  Hatsuo Nagaishi

IPC分类号： F02M5100

CPC分类号： F02D13/0215 ,  F01L9/04 ,  F02D13/0234 ,  F02D13/0253 ,  F02D13/0261 ,  F02D41/0002 ,  F02D41/222 ,  F02D2041/001 ,  F02D2200/0402 ,  Y02T10/18 ,  Y02T10/42

摘要： An automotive variable valve timing engine arranged to control the quantity of intake air to be supplied to a cylinder by regulating valve timings of an intake valve. An intake air quantity measuring device is provided for measuring the intake air quantity. An intake air quantity estimating system is provided including a control unit which is programmed to carry out (a) judging that a trouble arises in the intake air quantity measuring device, so as to provide a judgment result, and (b) calculating the intake air quantity in accordance with the valve timing of the intake valve, upon providing the judgment result.

摘要翻译： 一种汽车可变气门正时引擎，其布置成通过调节进气门的时间来控制供给到气缸的进气量。 提供了用于测量进气量的进气量测量装置。 一种进气量估计系统，包括控制单元，其被编程为执行（a）判断进气量测量装置中出现故障，以提供判断结果，以及（b）计算进气量 在提供判断结果时，根据进气门的气门正时量。

公开(公告)号：US06439175B2

公开(公告)日：2002-08-27

申请号：US09734611

申请日：2000-12-13

申请人： Masahiro Arai ,  Takao Kawasaki

发明人： Masahiro Arai ,  Takao Kawasaki

IPC分类号： F01L904

CPC分类号： F02D13/0234 ,  F02D13/0207 ,  F02D13/0253 ,  F02D41/083 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2250/18 ,  Y02T10/18

摘要： In control apparatus and method for an internal combustion engine having variably operated engine valves, a target vacuum pressure is calculated on the basis of an engine driving condition and an opening angle of an electronically controlled throttle valve is disposed in an intake air passage to achieve the target vacuum pressure. A target air quantity to be sucked within an engine cylinder on the basis of the engine driving condition is calculated and a valve closure timing of an intake valve of, e.g., an electromagnetic operation type is controlled to achieve the target air quantity. At this time, in accordance with the target vacuum pressure TBOOST(or in accordance with an actual vacuum pressure BOOST detected by means of a vacuum pressure sensor), the target air quantity to calculate the valve closure timing of the intake valve calculated on the basis of target air quantity is corrected or the intake valve closure timing IVC per se is corrected by a correction value of &Dgr;IVC.

摘要翻译： 在具有可变动作的发动机气门的内燃机的控制装置和方法中，基于发动机的驱动条件来计算目标真空压力，并且将电子控制的节流阀的开度角配置在进气通路内， 目标真空压力。 计算出基于发动机驱动条件在发动机气缸内吸入的目标空气量，并且控制例如电磁操作型的进气门的阀关闭正时以实现目标空气量。 此时，根据目标真空压力TBOOST（或根据通过真空压力传感器检测的实际真空压力BOOST），计算目标空气量，以计算进气阀的关闭正时 目标空气量的校正值或者通过DELTAIVC的校正值校正进气门关闭定时IVC本身。

公开(公告)号：US06412458B2

公开(公告)日：2002-07-02

申请号：US09728477

申请日：2000-12-04

申请人： Takao Kawasaki ,  Masahiro Arai

发明人： Takao Kawasaki ,  Masahiro Arai

IPC分类号： F01L134

CPC分类号： F02D13/0215 ,  F01L9/04 ,  F02D13/0253 ,  F02D13/0261 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0062 ,  F02D2013/0292 ,  F02D2041/001 ,  F02D2041/002 ,  F02D2200/0406 ,  F02M26/01 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： A control system controls an intake air quantity to an engine by controlling an intake valve closing timing, instead of, or in cooperation with, a throttle valve. A controller estimates a quantity of internal EGR gases remaining in a cylinder, and controls the intake valve closing timing to a desired target timing determined in due consideration of the estimated internal EGR quantity. The estimated internal EGR quantity is a sum of a base quantity and an increase correction quantity determined in accordance with a valve overlap period, its middle angular position in crankshaft rotation and intake pressure. The target intake valve closing timing is determined in accordance with a target intake air quantity and the estimated internal EGR quantity.

摘要翻译： 控制系统通过控制进气门关闭正时而不是或与节气门配合来控制发动机的进气量。 控制器估计气缸中剩余的内部EGR气体的量，并且将进气门关闭定时控制到适当考虑到所估计的内部EGR量所确定的期望目标时刻。 估计的内部EGR量是根据阀重叠周期，曲轴旋转中的中间角位置和进气压力确定的基础量和增加校正量之和。 目标进气门关闭正时根据目标进气量和估计内部EGR量确定。

公开(公告)号：US5988144A

公开(公告)日：1999-11-23

申请号：US8500

申请日：1998-01-16

申请人： Yoshiaki Yoshioka ,  Takao Kawasaki ,  Masahiko Hashimoto

发明人： Yoshiaki Yoshioka ,  Takao Kawasaki ,  Masahiko Hashimoto

IPC分类号： F02D41/12 ,  F16H61/14 ,  F02D41/04 ,  B60K41/12

CPC分类号： F02D41/126 ,  F16H61/14 ,  Y10T477/68

摘要： In a vehicle engine, when an accelerator pedal is released and a vehicle speed has decreased after fuel injection by a fuel injector has stopped, a controller restarts fuel injection. An engine rotation speed decrease rate immediately prior to restarting fuel injection is calculated, and a restart fuel injection amount is set which is larger the larger the decrease rate. In this way, the torque generated by the engine quickly recovers even during rapid deceleration, while during gradual deceleration, the generated torque increases gradually so that a torque shock does not occur.

摘要翻译： 在车辆发动机中，当燃料喷射器的燃料喷射停止之后，当油门踏板被释放并且车速降低时，控制器重新启动燃油喷射。 计算紧接在重新启动燃料喷射之前的发动机转速降低率，并且设定重力燃料喷射量，其大于减小率越大。 以这种方式，即使在快速减速时，发动机产生的扭矩也快速恢复，而在逐渐减速的过程中，产生的转矩逐渐增加，从而不产生转矩冲击。

公开(公告)号：US5126894A

公开(公告)日：1992-06-30

申请号：US546942

申请日：1990-07-02

申请人： Takao Kawasaki

发明人： Takao Kawasaki

IPC分类号： G11B15/467

CPC分类号： G11B15/4675

摘要： A servo circuit for a capstan motor has an element for recording a position detecting signal on a medium transported by the capstan motor, a magnetic head for reproducing the position detecting signal, a position detecting circuit for detecting a position error signal, a pulse generator for a pulse signal, a velocity detecting circuit for a velocity error signal, a phase comparator for comparing the phase of a clock signal and pulse signal and for outputting a phase error signal, a switch for selectively outputting the position error signal or the phase error signal, and a velocity control element for controlling the capstan motor by a velocity control signal. The servo circuit comprises a signal holding element connected in series to a signal supply path from the position detecting circuit to the velocity control element via the switch; a comparator circuit for outputting a detection signal when the phase error signal is within a predetermined level range; a holding control element responsive to the detection signal for controlling the signal holding element in a manner that in the case where the servo circuit is transited to a recording mode, until a transporting speed of the medium sufficiently reaches a predetermined speed, the signal holding element is caused to be in a passing state and then to enter a holding state, and when the signal holding element is caused to return to the passing state.

摘要翻译： 用于主导轴马达的伺服电路具有用于在由主导轴马达运送的介质上记录位置检测信号的元件，用于再现位置检测信号的磁头，用于检测位置误差信号的位置检测电路，用于检测位置误差信号的脉冲发生器 脉冲信号，用于速度误差信号的速度检测电路，用于比较时钟信号和脉冲信号的相位并用于输出相位误差信号的相位比较器，用于选择性地输出位置误差信号或相位误差信号的开关 以及用于通过速度控制信号控制主导轴马达的速度控制元件。 伺服电路包括：信号保持元件，其串联连接到通过开关从位置检测电路到速度控制元件的信号供给路径; 比较器电路，用于当相位误差信号在预定电平范围内时输出检测信号; 保持控制元件，其响应于用于控制信号保持元件的检测信号，使得在伺服电路转移到记录模式的情况下，直到介质的传送速度足够达到预定速度，信号保持元件 使其处于通过状态，然后进入保持状态，并且使信号保持元件返回到通过状态。

公开(公告)号：US06318083B1

公开(公告)日：2001-11-20

申请号：US09666891

申请日：2000-09-20

申请人： Kenichi Machida ,  Toru Fuse ,  Takao Kawasaki

发明人： Kenichi Machida ,  Toru Fuse ,  Takao Kawasaki

IPC分类号： F02D2300

CPC分类号： F02D23/00 ,  Y02T10/144 ,  Y02T10/42

摘要： An engine with a charger, in which an intake passage is provided with a throttle valve which is electronically controlled to a target opening degree and the charger on the upstream side of the throttle valve, wherein a target supercharged pressure is corrected in a direction of eliminating a delay in the intake air amount based upon a difference between the target supercharged pressure of the charger and the supercharged pressure detected on the upstream side of the throttle valve, to thereby set a target supercharged pressure of the throttle valve based on the corrected target supercharged pressure. This suppresses a delay in the intake air amount caused by a delay in the change of the supercharged pressure during the transient period, makes it possible to accomplish acceleration/deceleration performance of good response, and suppresses a torque difference that occurs when the combustion system is changed over to the stratified charge combustion or to the homogeneous combustion.

摘要翻译： 一种具有充电器的发动机，其中进气通道设置有电子控制到目标开度的节流阀和节流阀上游侧的充电器，其中目标增压压力在消除方向上被校正 基于充电器的目标增压压力与在节流阀的上游侧检测到的增压压力之间的差异，进气量的延迟，从而基于校正的目标增压来设定节气门的目标增压压力 压力。 这抑制了由于过渡期间的增压压力的变化的延迟引起的进气量的延迟，能够实现良好的响应的加速/减速性能，并且抑制了当燃烧系统为 转变为分层充气燃烧或均质燃烧。

公开(公告)号：US6016787A

公开(公告)日：2000-01-25

申请号：US109095

申请日：1998-07-02

申请人： Shoichi Sakai ,  Takao Kawasaki

发明人： Shoichi Sakai ,  Takao Kawasaki

IPC分类号： F02D45/00 ,  F02D9/02 ,  F02D41/08 ,  F02D41/14 ,  F02D41/16 ,  F02D41/24 ,  F02D3/00 ,  F02M3/00

CPC分类号： F02D41/08 ,  F02D41/16 ,  F02D41/2438 ,  F02D41/2441 ,  F02D41/2451 ,  F02D41/2464

摘要： In an engine whose target air-fuel ratio during the idle state is set to a leaner value than a theoretical air-fuel ratio, the target air-fuel ratio is forcibly switched to the theoretical air-fuel ratio and the learning is performed, when learning a learning correction quantity of the idle rotation speed, and the learning performed by switching to said theoretical air-fuel ratio is executed only once during an on state of an ignition switch.

摘要翻译： 在空转状态下的目标空燃比设定为比理论空燃比更稀的值的发动机中，将目标空燃比强制切换为理论空燃比，进行学习， 学习怠速旋转速度的学习校正量，并且在点火开关的接通状态期间仅执行一次切换到理论空燃比的学习。

公开(公告)号：US5975049A

公开(公告)日：1999-11-02

申请号：US124061

申请日：1998-07-29

申请人： Takao Kawasaki

发明人： Takao Kawasaki

IPC分类号： F02P5/15 ,  F02D29/04 ,  F02D31/00 ,  F02D35/00 ,  F02D41/02 ,  F02D41/08 ,  F02D41/16 ,  F02D43/00 ,  F02D45/00

CPC分类号： F02D41/083 ,  F02D31/005 ,  F02D35/003 ,  F02D2200/0402

摘要： An internal combustion engine has an auxiliary device incorporated therewith. An idling speed control device of the engine includes a first air amount control device which controls the amount of air fed to the engine in accordance with an operation condition of the engine, a second air amount control device which controls the amount of air fed to the engine when a load of the auxiliary device is being applied to the engine; and an air/fuel varying device which varies an air/fuel ratio of a mixture fed to the engine. A control unit for the idling speed control device includes a judging unit which judges whether the load of the auxiliary device is actually applied to the engine or not; a first deriving unit which derives a corrected air amount which corresponds to a load of the auxiliary device under idling operation of the engine at a stoichiometric air/fuel ration; a second deriving unit which derives a needed air amount needed by the engine when the engine is idling at a target air/fuel ratio; a calculating unit which calculates a difference between the corrected air amount and the needed air amount when the judging unit judges the application of the load of the auxiliary device to the engine; and an air amount control unit which controls the first air amount control device to correct the air amount fed to the engine in accordance with the difference calculated by the calculating unit.

摘要翻译： 内燃机具有并入的辅助装置。 发动机的空转速度控制装置包括：第一空气量控制装置，其根据发动机的运转状况来控制供给发动机的空气量;第二空气量控制装置，其控制供给到发动机的空气量 发动机，当辅助装置的负载被施加到发动机时; 以及改变供给到发动机的混合物的空气/燃料比的空气/燃料变化装置。 用于怠速控制装置的控制单元包括：判断单元，其判断辅助装置的负载是否实际应用于发动机; 第一导出单元，其以等于理论空燃比的方式，得到对应于所述辅助装置在所述发动机怠速运转下的负载的校正空气量; 第二导出单元，其在发动机以目标空燃比空转时获得发动机所需的空气量; 计算单元，当所述判断单元判断对所述发动机的所述辅助装置的负载的应用判断时，计算所述校正空气量与所需空气量的差; 以及空气量控制单元，其控制所述第一空气量控制装置，以根据由所述计算单元计算的差来校正供给到所述发动机的空气量。