中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

122 records (took 0.044 seconds)

    Vehicle body slip angle-estimating device and method and engine control unit
    1.
    发明授权
    Vehicle body slip angle-estimating device and method and engine control unit 失效
    车体滑角估算装置及方法及发动机控制装置

    公开(公告)号：US08255119B2

    公开(公告)日：2012-08-28

    申请号：US12081550

    申请日：2008-04-17

    Applicant: Takafumi Komori ,  Shusuke Akazaki ,  Takahide Mizuno

    Inventor： Takafumi Komori ,  Shusuke Akazaki ,  Takahide Mizuno

    IPC: B60G17/016

    CPC classification number: B60T8/172 ,  B60T8/174 ,  B60T2230/02 ,  B60W40/103 ,  B60W2050/0037 ,  B60W2520/14 ,  B60W2540/10

    Abstract: A vehicle body slip angle-estimating device which, in estimating a vehicle body slip angle with an algorithm using a nonlinear model, is capable of accurately estimating a vehicle body slip angle irrespective of whether the frequency of occurrence of a state during traveling of the vehicle. A basic value-calculating section calculates a basic value of a vehicle body slip angle with an algorithm using a neural network model. A turning state-determining section determines whether the vehicle is in a predetermined limit turning traveling state. A correction value-calculating section calculates a correction value with an algorithm using a predetermined linear model when the vehicle is in the predetermined state. In the other cases, the correction value is set to 0. A straight traveling-determining section sets the angle to the sum of the basic value and the correction value when the vehicle is in a turning traveling state.

    Abstract translation: 一种车体滑移角估计装置，其在使用非线性模型的算法估计车体滑移角时能够精确地估计车体滑移角，而与车辆行驶中的状态的发生频率无关 。 基本值计算部使用神经网络模型来算出车体滑移角的基本值。 转动状态判定部判定车辆是否处于规定的转弯行驶状态。 当车辆处于预定状态时，校正值计算部分使用预定线性模型的算法来计算校正值。 在其他情况下，校正值被设定为0.直行驶确定部分在车辆处于转弯行驶状态时将角度设置为基本值和校正值之和。

    IGNITION TIMING CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE AND ENGINE CONTROL UNIT
    2.
    发明申请
    IGNITION TIMING CONTROL SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE AND ENGINE CONTROL UNIT 有权
    点火时间控制系统和内燃机和发动机控制单元的方法

    公开(公告)号：US20090293842A1

    公开(公告)日：2009-12-03

    申请号：US12434995

    申请日：2009-05-04

    Applicant: Shusuke Akazaki ,  Takafumi Komori

    Inventor： Shusuke Akazaki ,  Takafumi Komori

    IPC: F02P5/00

    CPC classification number: F02P5/153 ,  F02D35/023 ,  F02D35/028 ,  F02D41/068 ,  Y02T10/46

    Abstract: An ignition timing control system for an internal combustion engine, which is capable of properly carrying out ignition timing control over a wide control range, thereby making it possible to improve fuel economy, and is capable of suppressing combustion fluctuation, thereby making it possible to improve drivability. Ignition timing is calculated, when the engine is determined to be in an intense combustion mode, such that a largest in-cylinder pressure angle at which in-cylinder pressure becomes largest converges to a target angle, whereas when the engine is determined to be in a weak combustion mode, the same is calculated by feedback, based on the target angle and combustion state parameters indicative of a combustion state in the cylinder.

    Abstract translation: 一种用于内燃机的点火正时控制系统，其能够在宽的控制范围内适当地进行点火正时控制，从而可以提高燃料经济性，并且能够抑制燃烧波动，从而可以改善 驾驶性能。 当发动机被确定为强燃烧模式时，计算点火正时，使得缸内压力变得最大的最大缸内压力角收敛到目标角度，而当发动机被确定为处于 弱燃烧模式，通过反馈计算，基于指示气缸中的燃烧状态的目标角度和燃烧状态参数来计算。

    Air-fuel ratio controlling apparatus for an engine
    3.
    发明申请
    Air-fuel ratio controlling apparatus for an engine 有权
    发动机空燃比控制装置

    公开(公告)号：US20070221170A1

    公开(公告)日：2007-09-27

    申请号：US11703211

    申请日：2007-02-07

    Applicant: Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

    Inventor： Hideyuki Oki ,  Shusuke Akazaki ,  Yuji Yamamoto

    IPC: F02M7/00 ,  F02D41/00 ,  G06F17/00

    CPC classification number: F02D35/028 ,  F02D35/023 ,  F02D41/0085 ,  F02D41/1458

    Abstract: An air-fuel ratio controlling apparatus includes an internal pressure detector for detecting an internal pressure of a combustion chamber of the engine. The apparatus estimates a motoring pressure of the engine and determines a start-of-combustion time, a time point when a difference between the internal pressure and the motoring pressure exceeds a predetermined value in a compression stroke and a combustion stroke of the engine. Firing delay for each cylinder is calculated from as a duration from sparking to the start-of-combustion time. Air-fuel ratio of each cylinder is estimated based on the firing delay and fuel injection amount for each cylinder is calculated to make the air-fuel ratio of plural cylinders uniform.

    Abstract translation: 空燃比控制装置包括用于检测发动机的燃烧室的内部压力的内部压力检测器。 该装置估计发动机的运转压力，并且确定起动燃烧时间，即内压和电动压力之间的差在发动机的压缩冲程和燃烧冲程中超过预定值的时间点。 从火花到燃烧时间的持续时间计算每个气缸的燃烧延迟。 基于燃烧延迟来估算每个气缸的空燃比，并计算每个气缸的燃料喷射量，以使多个气缸的空燃比均匀。

    Adsorbent state determining apparatus
    5.
    发明授权
    Adsorbent state determining apparatus 失效

    公开(公告)号：US06640540B2

    公开(公告)日：2003-11-04

    申请号：US09978020

    申请日：2001-10-17

    Applicant: Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

    Inventor： Masahiro Sato ,  Yoshihisa Iwaki ,  Masaki Ueno ,  Shusuke Akazaki ,  Yuji Yasui

    IPC: F01N300

    CPC classification number: F01N3/0835 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/30 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2430/06 ,  F01N2550/03 ,  F01N2570/12 ,  Y02T10/47

    Abstract: An adsorbent state determining apparatus is provided for accurately determining the state of an adsorbent including a deterioration as well as for allowing for recovery of the adsorbent if its adsorbent performance can be restored. The adsorbent state determining apparatus determines the state of an adsorbent for adsorbing hydrocarbons contained in exhaust gases. An upstream and a downstream temperature sensor are provided at upstream and downstream locations of the adsorbent in an exhaust system for detecting temperatures of exhaust gases upstream and downstream of the adsorbent. An engine water temperature sensor detects an operating state of the engine. An ECU estimates the temperature of the exhaust gas which should be detected downstream of the adsorbent during adsorption of the adsorbent based on the upstream temperature detected by the upstream temperature sensor and an engine water temperature of the engine detected by the engine water temperature sensor. The ECU then compares the estimated downstream temperature with the detected downstream temperature detected by the downstream temperature sensor during adsorption of the adsorbent to determine the adsorption state of the adsorbent.

    Control system for internal combustion engine
    6.
    发明授权
    Control system for internal combustion engine 失效
    内燃机控制系统

    公开(公告)号：US06550449B2

    公开(公告)日：2003-04-22

    申请号：US09741837

    申请日：2000-12-22

    Applicant: Shusuke Akazaki ,  Yoshihisa Iwaki ,  Masaki Ueno

    Inventor： Shusuke Akazaki ,  Yoshihisa Iwaki ,  Masaki Ueno

    IPC: F02D4116

    CPC classification number: F02D41/0245 ,  F02D37/02 ,  F02P5/1506 ,  Y02T10/26 ,  Y02T10/46

    Abstract: A control system for an internal combustion engine having a catalyst arranged in the exhaust system is disclosed. In the control system, catalyst temperature rise accelerating control is executed by increasing the intake air amount immediately after starting of the engine and retarding the ignition timing to make the rotational speed of the engine coincide with a target rotational speed. The air-fuel ratio of an air-fuel mixture supplied to the engine is controlled to a lean region with respect to the stoichiometric ratio immediately after starting of the engine. The degree of making the air-fuel ratio leaner is suppressed when the retard amount of the ignition timing during the execution of the catalyst temperature rise accelerating control is less than a predetermined retard amount.

    Abstract translation: 公开了一种具有布置在排气系统中的催化剂的内燃机的控制系统。 在控制系统中，催化剂升温加速控制是通过增加发动机起动后立即进气量而延迟点火正时，使发动机的转速与目标转速一致。 提供给发动机的空气燃料混合物的空燃比被控制为相对于发动机起动之后的化学计量比的稀薄区域。 当执行催化剂温度升高加速控制期间的点火正时的延迟量小于预定的延迟量时，抑制使空燃比更稀的程度。

    Method of judging deterioration of emission gas control catalyst device
    7.
    发明授权
    Method of judging deterioration of emission gas control catalyst device 失效
    判断排放气体控制催化剂装置的劣化的方法

    公开(公告)号：US06449944B1

    公开(公告)日：2002-09-17

    申请号：US09743906

    申请日：2001-01-17

    Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Tadashi Satoh ,  Masaki Ueno

    Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki ,  Tadashi Satoh ,  Masaki Ueno

    IPC: F01N300

    CPC classification number: F02D41/1403 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  F02D41/0235 ,  F02D41/1402 ,  F02D41/1441 ,  F02D41/1456 ,  F02D41/22 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1431 ,  F02D2041/1432 ,  F02D2041/1433 ,  Y02T10/47

    Abstract: A first exhaust gas sensor 5 (air-fuel ratio sensor) and a second exhaust gas sensor 6 (O2 sensor) are disposed respectively upstream and downstream of a catalytic converter. An exhaust system E which ranges from the exhaust gas sensor 5 to the exhaust gas sensor 6 and includes the catalytic converter 3 is regarded as an object exhaust system E, and a behavior of the object exhaust system E is modeled. When an internal combustion engine 1 is in operation, parameters to be set of the model of the object exhaust system E are sequentially identified based on the data of outputs of the exhaust gas sensors 5, 6. A deteriorated state of the catalytic converter 3 is determined based on the data of the identified values. Concurrent with the determination of the deteriorated state, a target air-fuel ratio for the internal combustion engine 1 is sequentially determined in order to converge the output of the exhaust gas sensor 5 to a given target value, and the air-fuel ratio of the internal combustion engine 1 is controlled to converge the output (the detected value of the air-fuel ratio) of the first exhaust gas sensor 5 to the target air-fuel ratio, for thereby allowing the catalytic converter 3 to achieve an optimum purifying capability. In this manner, the deteriorated state of the catalytic converter 3 can be determined in various operation states of the internal combustion engine 1 while keeping the purifying capability of the catalytic converter 3.

    Abstract translation: 第一排气传感器5（空燃比传感器）和第二排气传感器6（O2传感器）分别设置在催化转化器的上游和下游。 从排气传感器5到排气传感器6并且包括催化转化器3的排气系统E被认为是对象排气系统E，并且对对象排气系统E的行为进行建模。 当内燃机1运转时，根据排气传感器5,6的输出数据，依次识别对象排气系统E的模型的参数，催化转化器3的劣化状态为 基于所识别的值的数据确定。 与劣化状态的判定同时，为了将排气传感器5的输出收敛到给定的目标值，依次确定内燃机1的目标空燃比，空燃比 控制内燃机1使第一废气传感器5的输出（空燃比的检测值）与目标空燃比收敛，从而使催化转化器3达到最佳的净化能力。 以这种方式，可以在保持催化转化器3的净化能力的同时，在内燃机1的各种运行状态下确定催化转化器3的劣化状态。

    Air-fuel ratio control apparatus for multicylinder internal combustion engine
    9.
    发明授权
    Air-fuel ratio control apparatus for multicylinder internal combustion engine 有权
    用于多缸内燃机的空燃比控制装置

    公开(公告)号：US06370473B1

    公开(公告)日：2002-04-09

    申请号：US09680480

    申请日：2000-10-06

    Applicant: Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

    Inventor： Yuji Yasui ,  Shusuke Akazaki ,  Yoshihisa Iwaki

    IPC: F02D4114

    CPC classification number: F02D41/0082 ,  F02D41/1401 ,  F02D41/1402 ,  F02D41/1403 ,  F02D41/1443 ,  F02D41/1456 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1418 ,  F02D2041/142 ,  F02D2041/1423 ,  F02D2041/1431 ,  F02D2041/1433

    Abstract: An exhaust system is regarded as being equivalent to a system for generating an output of an O2 sensor or exhaust gas sensor from a combined air-fuel ratio that is produced by combining outputs of air-fuel ratio sensors associated with respective cylinder groups according to a filtering process of the mixed model type. With the equivalent system as an object to be controlled, an exhaust system controller determines a target value for the combined air-fuel ratio, and determines a target air-fuel ratio for the cylinder groups from the target combined air-fuel ratio. The outputs of the air-fuel ratio sensors are converted to the target combined air-fuel ratio under feedback control.

    Abstract translation: 排气系统被认为等同于用于根据组合的空燃比产生O2传感器或废气传感器的输出的系统，该组合空燃比是通过将根据相应的气缸组相关联的空燃比传感器的输出组合而产生的 混合模型类型的过滤过程。 利用作为被控制对象的等效系统，排气系统控制器确定组合空燃比的目标值，并根据目标组合空燃比确定气缸组的目标空燃比。 在反馈控制下，空燃比传感器的输出转换为目标组合空燃比。

Patent Agency Ranking