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    • 2. 发明授权
    • Method of reducing turbo lag in diesel engines having exhaust gas recirculation
    • 具有废气再循环的柴油发动机减速技术的方法
    • US06178749B2
    • 2001-01-30
    • US09237737
    • 1999-01-26
    • Ilya V. KolmanovskyMichiel J. Van NieuwstadtPaul Eduard Moraal
    • Ilya V. KolmanovskyMichiel J. Van NieuwstadtPaul Eduard Moraal
    • F02M2507
    • F02D41/0052F02B37/18F02B37/24F02D41/0007F02D41/18F02D2200/0406F02M26/05F02M26/10Y02T10/144Y02T10/47
    • A method of reducing turbo lag in a compression ignition engine having an exhaust gas recirculation system (EGR) and a variable geometry turbocharger (VGT). The method includes the steps of determining an intake manifold pressure and intake manifold mass airflow setpoint, MAPd and MAFd, as a function of the current engine speed and requested fueling rate (Wf,REQ). The method further includes modifying the setpoints by a transient governor to generate modified setpoints, MAFc and MAPc, as a function of MAFd and MAPd, respectively, and feeding the modified setpoints to the controller to drive the turbocharger and EGR valve to the desired setpoints, thereby maximizing the amount of fresh air admitted to the engine during transient operation. Another embodiment of the method for reducing turbo lag coordinates the controller gains between the EGR and VGT. The method speeds up the MAF response by using multivariable control of both the EGR and VGT to aggressively regulate airflow to the desired setpoint.
    • 一种降低具有排气再循环系统(EGR)和可变几何形状涡轮增压器(VGT)的压缩点火式发动机中的涡轮滞后的方法。 该方法包括以下步骤:根据当前发动机速度和所要求的加油速率(Wf,REQ)确定进气歧管压力和进气歧管质量气流设定点MAPd和MAFd。 该方法还包括通过瞬态调节器修改设定点,以分别作为MAFd和MAPd的函数产生修改的设定点MAFc和MAPc,并将修改的设定点馈送到控制器以将涡轮增压器和EGR阀驱动到期望的设定点, 从而最大限度地提高了瞬时运行期间进入发动机的新鲜空气量。 用于减少涡轮滞后的方法的另一实施例协调控制器在EGR和VGT之间的增益。 该方法通过使用EGR和VGT的多变量控制来加速MAF响应,以积极地将气流调节到所需的设定点。
    • 9. 发明授权
    • Control algorithm for soft-landing in electromechanical actuators
    • 机电执行器软着陆控制算法
    • US06693787B2
    • 2004-02-17
    • US10098780
    • 2002-03-14
    • Ilya V. KolmanovskyMohammad Haghgooie
    • Ilya V. KolmanovskyMohammad Haghgooie
    • H01H900
    • F02D41/20F01L9/04F02D2041/2058F02D2041/2079
    • A system (12) and method for controlling an armature (20) of an electromagnetic actuator (10) are provided. The system (12) includes a circuit (46) for providing current to the coils (32, 34) of electromagnets (16, 18) disposed on either side of the armature (20). The system (12) also includes an electronic control unit (ECU) (50). The ECU (50) is configured to determine the neutral position of a virtual spring corresponding to the combination of forces acting on the armature 20 including the magnetic force of the attracting electromagnet (16 or 18) and the force of a restoring spring (22 or 24) opposing movement of the armature (20) towards the attracting electromagnet (16 or 18). The ECU (50) is further configured to control the current in the coil (32 or 34) of the attracting electromagnet (16 or 18) responsive to the determined neutral position so as to minimize the velocity of the armature as it reaches the pole face (36 or 38) of the attracting electromagnet (16 or 18).
    • 提供一种用于控制电磁致动器(10)的电枢(20)的系统(12)和方法。 系统(12)包括用于向设置在电枢(20)的任一侧的电磁体(16,18)的线圈(32,34)提供电流的电路(46)。 系统(12)还包括电子控制单元(ECU)(50)。 ECU(50)被配置为确定虚拟弹簧的中性位置对应于包括吸引电磁体(16或18)的磁力的作用在电枢20上的力的组合以及恢复弹簧(22或 24)电枢(20)相对于吸引电磁体(16或18)的相对运动。 ECU(50)还被配置为响应于所确定的中立位置来控制吸引电磁体(16或18)的线圈(32或34)中的电流,以便使电枢达到极面时的速度最小化 (36或38)的吸引电磁体(16或18)。