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    • 12. 发明申请
    • Ignition timing control system for internal combustion engine
    • 内燃机点火正时控制系统
    • US20080053404A1
    • 2008-03-06
    • US11896203
    • 2007-08-30
    • Takahide MizunoShusuke AkazakiTetsuya Ishiguro
    • Takahide MizunoShusuke AkazakiTetsuya Ishiguro
    • F02P5/153
    • F02P5/153F02D35/023F02D35/028F02D2041/1432F02P5/1504Y02T10/46
    • An ignition timing control system for an internal combustion engine, which is capable of ensuring both stability of control in a steady operating condition of the engine, and an excellent follow-up property of a controlled variable to a target value in a transient operating condition of the engine, even when the controlled variable contains a lot of high-frequency noise components. In the ignition timing control system, a maximum pressure angle-calculating section calculates a maximum pressure angle based on an in-cylinder pressure and a crank angle position. A target angle-calculating section calculates a target angle. A maximum pressure angle controller calculates a maximum pressure angle correction term with a control algorithm to which is applied a sliding mode control algorithm, using a value obtained by performing ε-filtering on a switching function, such that the maximum pressure angle converges to the target angle. The ignition timing is calculated by adding corrected ignition timing to the value.
    • 一种用于内燃机的点火正时控制系统,其能够确保在发动机的稳定运行状态下的控制的稳定性,以及在瞬态运行状态下控制变量与目标值的良好追随性 发动机,即使受控变量包含大量的高频噪声分量。 在点火正时控制系统中,最大压力角计算部根据缸内压力和曲柄角位置来计算最大压力角。 目标角度计算部分计算目标角度。 最大压力角控制器利用控制算法计算最大压力角校正项,该控制算法应用滑动模式控制算法,使用通过对切换功能执行ε滤波而获得的值,使得最大压力角收敛到目标 角度。 通过将校正的点火正时与该值相加来计算点火正时。
    • 13. 发明授权
    • Ignition timing control system for internal combustion engine
    • 内燃机点火正时控制系统
    • US08024107B2
    • 2011-09-20
    • US11896203
    • 2007-08-30
    • Takahide MizunoShusuke AkazakiTetsuya Ishiguro
    • Takahide MizunoShusuke AkazakiTetsuya Ishiguro
    • F02P5/153
    • F02P5/153F02D35/023F02D35/028F02D2041/1432F02P5/1504Y02T10/46
    • An ignition timing control system for an internal combustion engine, which is capable of ensuring both stability of control in a steady operating condition of the engine, and an excellent follow-up property of a controlled variable to a target value in a transient operating condition of the engine, even when the controlled variable contains a lot of high-frequency noise components. In the ignition timing control system, a maximum pressure angle-calculating section calculates a maximum pressure angle based on an in-cylinder pressure and a crank angle position. A target angle-calculating section calculates a target angle. A maximum pressure angle controller calculates a maximum pressure angle correction term with a control algorithm to which is applied a sliding mode control algorithm, using a value obtained by performing ε-filtering on a switching function, such that the maximum pressure angle converges to the target angle. The ignition timing is calculated by adding corrected ignition timing to the value.
    • 一种用于内燃机的点火正时控制系统,其能够确保在发动机的稳定运行状态下的控制的稳定性,以及在瞬态运行状态下控制变量与目标值的良好追随性 发动机,即使受控变量包含大量的高频噪声分量。 在点火正时控制系统中,最大压力角计算部根据缸内压力和曲柄角位置来计算最大压力角。 目标角度计算部分计算目标角度。 最大压力角控制器利用控制算法计算最大压力角校正项,该控制算法应用滑动模式控制算法,使用通过对切换功能进行过滤获得的值,使得最大压力角收敛于 目标角度。 通过将校正的点火正时与该值相加来计算点火正时。
    • 14. 发明申请
    • Vehicle body slip angle-estimating device and method and engine control unit
    • 车体滑角估算装置及方法及发动机控制装置
    • US20080262677A1
    • 2008-10-23
    • US12081550
    • 2008-04-17
    • Takafumi KomoriShusuke AkazakiTakahide Mizuno
    • Takafumi KomoriShusuke AkazakiTakahide Mizuno
    • G06F19/00
    • B60T8/172B60T8/174B60T2230/02B60W40/103B60W2050/0037B60W2520/14B60W2540/10
    • 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.
    • 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。
    • 18. 发明授权
    • Control system for internal combustion engine
    • 内燃机控制系统
    • US06550449B2
    • 2003-04-22
    • US09741837
    • 2000-12-22
    • Shusuke AkazakiYoshihisa IwakiMasaki Ueno
    • Shusuke AkazakiYoshihisa IwakiMasaki Ueno
    • F02D4116
    • F02D41/0245F02D37/02F02P5/1506Y02T10/26Y02T10/46
    • 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.
    • 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。
    • 19. 发明授权
    • Method of judging deterioration of emission gas control catalyst device
    • 判断排放气体控制催化剂装置的劣化的方法
    • US06449944B1
    • 2002-09-17
    • US09743906
    • 2001-01-17
    • Yuji YasuiShusuke AkazakiYoshihisa IwakiTadashi SatohMasaki Ueno
    • Yuji YasuiShusuke AkazakiYoshihisa IwakiTadashi SatohMasaki Ueno
    • F01N300
    • F02D41/1403F01N11/007F01N2550/02F01N2900/0422F02D41/0235F02D41/1402F02D41/1441F02D41/1456F02D41/22F02D2041/1416F02D2041/1418F02D2041/142F02D2041/1423F02D2041/1431F02D2041/1432F02D2041/1433Y02T10/47
    • 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.
    • 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。