System and method for reducing vehicle acceleration during engine transitions
    1.
    发明授权
    System and method for reducing vehicle acceleration during engine transitions 有权
    在发动机转换期间减少车辆加速度的系统和方法

    公开(公告)号:US07426915B2

    公开(公告)日:2008-09-23

    申请号:US11298199

    申请日:2005-12-08

    IPC分类号: F02D17/00

    摘要: A method for controlling an engine to reduce vehicle shuffle mode vibration during mode transition. The engine includes multiple cylinders, each with at least one electrically actuated valve, and the engine operates in a first mode having a first number of firing cylinders and a second mode having a second number of firing cylinders. The method comprises transitioning the engine from operating in the first mode to the second mode; adjusting at least a valve timing or lift of one of a last cylinder to be fired in said first mode and a first cylinder to be fired in said second mode to temporarily adjust a cylinder torque and thereby reduce vehicle shuffle mode vibration.

    摘要翻译: 一种用于在模式转换期间控制发动机以减少车辆洗牌模式振动的方法。 发动机包括多个气缸,每个气缸具有至少一个电致动阀,并且发动机以具有第一数量的发动缸的第一模式和具有第二数量的发射缸的第二模式工作。 该方法包括使发动机从第一模式运转到第二模式; 至少调节在所述第一模式中要被点火的最后一个气缸中的一个的气门正时或升程,以及在所述第二模式中待燃烧的第一气缸,以临时调节气缸扭矩,从而减少车辆洗牌模式的振动。

    Control algorithm for soft-landing in electromechanical actuators
    4.
    发明授权
    Control algorithm for soft-landing in electromechanical actuators 有权
    机电执行器软着陆控制算法

    公开(公告)号:US06693787B2

    公开(公告)日:2004-02-17

    申请号:US10098780

    申请日:2002-03-14

    IPC分类号: H01H900

    摘要: 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).

    摘要翻译: 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)。

    Control method for turbocharged diesel engines having exhaust gas
recirculation
    7.
    发明授权
    Control method for turbocharged diesel engines having exhaust gas recirculation 失效
    具有废气再循环的涡轮增压柴油发动机的控制方法

    公开(公告)号:US6035640A

    公开(公告)日:2000-03-14

    申请号:US237332

    申请日:1999-01-26

    摘要: A method of controlling the airflow into a compression ignition engine having an EGR and a VGT. The control strategy includes the steps of generating desired EGR and VGT turbine mass flow rates as a function of the desired and measured compressor mass airflow values and exhaust manifold pressure values. The desired compressor mass airflow and exhaust manifold pressure values are generated as a function of the operator-requested fueling rate and engine speed. The EGR and VGT turbine mass flow rates are then inverted to corresponding EGR and VGT actuator positions to achieve the desired compressor mass airflow rate and exhaust manifold pressure. The control strategy also includes a method of estimating the intake manifold pressure used in generating the EGR valve and VGT turbine positions.

    摘要翻译: 控制具有EGR和VGT的压燃式发动机的气流的方法。 控制策略包括产生期望的EGR和VGT涡轮质量流量作为期望和测量的压缩机质量气流值和排气歧管压力值的函数的步骤。 所需的压缩机质量气流和排气歧管压力值是根据操作员要求的加油速率和发动机转速产生的。 然后将EGR和VGT涡轮质量流量反转到相应的EGR和VGT致动器位置,以实现所需的压缩机质量气流速率和排气歧管压力。 控制策略还包括一种估计用于产生EGR阀和VGT涡轮机位置的进气歧管压力的方法。

    Variable Displacement Engine Powertrain Fuel Economy Mode
    9.
    发明申请
    Variable Displacement Engine Powertrain Fuel Economy Mode 有权
    可变排量发动机动力总成燃油经济模式

    公开(公告)号:US20080287253A1

    公开(公告)日:2008-11-20

    申请号:US11750574

    申请日:2007-05-18

    IPC分类号: F16H61/14 F16H45/02 G06F17/00

    摘要: A vehicle drive system comprising of a variable displacement engine including a plurality of cylinders, where at least one of the plurality of cylinders selectively deactivates to decrease engine displacement; a torque converter operatively coupled to the variable displacement engine configured to operate with variable slip; a driver interface for receiving a preference setting from a driver; a control system for receiving the driver preference setting, and adjusting torque converter slip based on the driver preference setting.

    摘要翻译: 一种车辆驱动系统,包括包括多个气缸的可变排量发动机,其中所述多个气缸中的至少一个选择性地停用以减小发动机排量; 液力变矩器,其可操作地联接到所述可变排量发动机,所述变量发动机被配置为以可变滑动进行操作; 驱动器接口,用于从驾驶员接收偏好设置; 用于接收驾驶员偏好设置的控制系统,以及基于驾驶员偏好设置来调节变矩器滑移。