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    • 2. 发明申请
    • Motor Controller
    • 电机控制器
    • US20090248230A1
    • 2009-10-01
    • US12371323
    • 2009-02-13
    • Shiho IzumiSatoru KanekoYutaka Takaku
    • Shiho IzumiSatoru KanekoYutaka Takaku
    • B60L15/00G06F17/00
    • H02P23/0004
    • The present invention provides a motor controller capable of selecting a motor drive system that provides the best possible system efficiency, according to monitored parameters indicative of the vehicle condition and the conditions of the mounted components. A drive signal processing block of the motor controller outputs drive signals to the motor by using a first drive system and a second drive system causing less switching loss than the first drive system, depending on a demanded torque for the motor. A drive system determination block, when an operating point of the motor allows selection between the first drive system and the second drive system, performs switching from the first drive system to the second drive system, based on the condition of an electric component of the vehicle or the vehicle running condition.
    • 本发明提供了一种电动机控制器,其能够根据监视的参数来选择提供最佳系统效率的电动机驱动系统,该参数指示车辆状态和所安装部件的状况。 马达控制器的驱动信号处理块根据电动机的要求转矩,通过使用第一驱动系统和第二驱动系统向第一驱动系统输出与第一驱动系统相比更小的开关损耗的驱动信号。 一种驱动系统确定块,当电动机的工作点允许在第一驱动系统和第二驱动系统之间进行选择时,基于车辆的电气部件的状况,执行从第一驱动系统到第二驱动系统的切换 或车辆行驶状态。
    • 3. 发明授权
    • Diagnosing system for engine
    • 发动机诊断系统
    • US06430495B2
    • 2002-08-06
    • US09902606
    • 2001-07-12
    • Yutaka TakakuToshio IshiiToshiharu Nogi
    • Yutaka TakakuToshio IshiiToshiharu Nogi
    • G06F1900
    • F02D41/221F02D2041/389
    • A diagnosing system for an engine diagnoses malfunctions that occur in a direct-injection engine in which fuel is injected into combustion chambers or a lean-burn engine. The present invention provides a diagnosing system for an engine capable of diagnosing malfunctions in an intake air flow intensifying component and a fuel supply component and of specifying a malfunctioning part without being affected by the difference between different engines, the difference in quality between parts and aging. The diagnosing system for an engine comprises: a selecting component for selecting either a first air-fuel mixture control component or a second air-fuel mixture control component according to operating condition of an engine; a combustion condition detecting component for detecting combustion condition of the engine; and decision component for deciding a malfunction on the basis of a first combustion condition detected by the combustion condition detecting component in a state where the first air-fuel mixture control component is selected by the selecting component, and a second combustion condition detected by the combustion condition detecting component in a state where the second air-fuel mixture control component is selected by the selecting component.
    • 用于发动机的诊断系统诊断在直接喷射发动机中发生的故障,其中将燃料喷射到燃烧室或稀燃燃烧发动机中。 本发明提供了一种能够诊断进气通风增压部件和燃料供给部件中的故障的发动机的诊断系统,并且在不受不同发动机之间的差异的影响的情况下指定故障部件,部件之间的质量差异与老化 。 发动机的诊断系统包括:根据发动机的运行状态选择第一空气 - 燃料混合物控制部件或第二空气燃料混合物控制部件的选择部件; 用于检测发动机的燃烧状态的燃烧条件检测部件; 以及判定部件,其根据由所述选择部件选择了所述第一空气燃料混合控制部件的状态,基于由所述燃烧条件检测部件检测出的第一燃烧条件来决定故障,以及由所述燃烧检测出的第二燃烧状态 状态检测部件,其中所述第二空气 - 燃料混合物控制部件被所述选择部件选择。
    • 5. 发明授权
    • Evaporative system and method of diagnosing same
    • 蒸发系统及诊断方法
    • US06305361B1
    • 2001-10-23
    • US09538273
    • 2000-03-30
    • Yutaka TakakuToshio IshiiKazuya KawanoNobuo KuriharaHiroshi KimuraKiyoshi Miura
    • Yutaka TakakuToshio IshiiKazuya KawanoNobuo KuriharaHiroshi KimuraKiyoshi Miura
    • F02M3302
    • F02M25/0809
    • There is disclosed a leakage diagnosis of an evaporative system in an internal combustion engine, and more particularly there is disclosed an evaporative system in which a more accurate leakage diagnosis can be effected using a change in the pressure in the evaporative system, and such a diagnosis method is also disclosed. The evaporative system includes a gauge line having a gauge valve, which gauge line branches off from an evaporative gas line or an evaporative gas purge line, and communicates with a point upstream of an engine throttle valve or with the ambient atmosphere, a pressure sensor for detecting the pressure in the evaporative system, and a purge valve. A leakage diagnosis of this system is effected based on detected values of the pressure sensor obtained by opening and closing the purge valve and the gauge valve. Therefore, accurate results of the diagnosis can be obtained.
    • 公开了内燃机中的蒸发系统的泄漏诊断,更具体地,公开了一种蒸发系统,其中可以使用蒸发系统中的压力变化来实现更准确的泄漏诊断,并且这种诊断 还公开了方法。 蒸发系统包括具有计量阀的计量管,该计量管从蒸发气体管线或蒸发气体吹扫管线分支,并与发动机节气门或与大气环境的上游点连通,压力传感器用于 检测蒸发系统中的压力和净化阀。 基于通过打开和关闭吹扫阀和量规阀获得的压力传感器的检测值来实现该系统的泄漏诊断。 因此,可以获得准确的诊断结果。
    • 6. 发明授权
    • Method and apparatus for diagnosing engine exhaust gas purification
system
    • 用于诊断发动机废气净化系统的方法和装置
    • US6050087A
    • 2000-04-18
    • US109171
    • 1998-07-02
    • Nobuo KuriharaHiroshi KimuraYutaka TakakuToshio Ishii
    • Nobuo KuriharaHiroshi KimuraYutaka TakakuToshio Ishii
    • F02D45/00F01N3/20F01N9/00F01N11/00F02D41/14F01N3/00
    • F01N9/005F01N11/005F01N11/007F01N2550/02F02D2200/0804Y02T10/47
    • A diagnosis apparatus for diagnosing a catalystic converter of a motor vehicle as to whether the catalyst suffers deterioration by estimating a temperature of the catalyst or that of the exhaust gas in the vicinity of the catalyst on the basis of a plurality of engine parameters to thereby decide deterioration of the catalyst by using as an index the estimated temperature. The apparatus includes a unit for estimating the temperature of the catalyst in a steady state by making use of an engine speed and an engine load which represent typical parameters employed in fuel injection control of the engine. The steady-state temperature facility is realized by storing the engine speeds and the engine loads obtained experimentally in the steady state operation of the engine in the form of a two-dimensional data map. A unit for correcting the estimated temperature of the catalyst in the transient state is provided for correcting the catalyst temperature determined by the steady-state catalyst temperature estimating unit to thereby ensure correct estimation of the catalyst temperature even in the course of operation of the motor vehicle. In the transient temperature estimating unit, non-linear characteristics are each described by combining a plurality of linear characteristics. A unit for estimating the temperature of the catalyst on the basis of the value determined by the steady-state temperature estimating unit and the transient-state temperature estimating unit is provided to decide deterioration of the catalyst.
    • 一种用于诊断机动车辆的催化剂转化器的诊断装置,其基于多个发动机参数来估计催化剂的温度或者催化剂附近的排气的温度,从而决定催化剂是否发生劣化 通过使用估计温度作为指标,催化剂的劣化。 该装置包括用于通过利用表示在发动机的燃料喷射控制中使用的典型参数的发动机转速和发动机负荷来估计稳定状态下的催化剂的温度的单元。 稳态温度设备通过将发动机转速和实验获得的发动机负载以二维数据图的形式存储在发动机的稳态运行中来实现。 提供用于校正催化剂在过渡状态下的估计温度的单元,用于校正由稳态催化剂温度估计单元确定的催化剂温度,从而即使在机动车辆的操作过程中也能够正确地估计催化剂温度 。 在瞬态温度估计单元中,通过组合多个线性特性来分别描述非线性特性。 提供基于由稳态温度推定单元和瞬态温度推定单元确定的值来估计催化剂温度的单元,以确定催化剂的劣化。
    • 10. 发明授权
    • Air-fuel ratio controller for engine
    • 发动机空燃比控制器
    • US06520168B2
    • 2003-02-18
    • US09800660
    • 2001-03-08
    • Toshio IshiiYutaka Takaku
    • Toshio IshiiYutaka Takaku
    • F02B7508
    • F02D41/1441F02D41/1455F02D41/1456F02D41/1477F02D2041/1409F02D2041/1422F02D2041/1432
    • An air-fuel ratio correction coefficient calculating component is provided to an air-fuel ratio controller for an engine having the wide range air-fuel ratio sensor. In order to compensate for a time lag in detection of an air-fuel ratio detected by the wide range air-fuel ratio sensor from the time when a mixed gas of the air-fuel ratio is supplied to the engine, the air-fuel ratio controller includes a component for calculating an air-fuel ratio correction coefficient to control an amount of fuel supplied to the engine based on an output signal of the air-fuel ratio sensor. The air-fuel ratio correction coefficient calculating component calculates the air-fuel ratio correction coefficient based on a nonlinear calculation element. The non-linear calculation element has an ON-OFF characteristic, a neutral zone characteristic, a saturation characteristic or a characteristic combining a plurality of characteristics selected from the above-mentioned characteristics.
    • 空燃比校正系数计算部件设置在具有宽范围空燃比传感器的发动机的空燃比控制装置中。 为了补偿从空燃比的混合气体向发动机供给时的宽范围空燃比传感器检测出的空燃比的检测时间滞后,空燃比 控制器包括用于根据空燃比传感器的输出信号计算空燃比校正系数以控制供给发动机的燃料量的部件。 空燃比校正系数计算部件基于非线性计算元件来计算空燃比校正系数。 非线性计算元件具有ON-OFF特性,中性区特性,饱和特性或组合从上述特性中选出的多个特性的特性。