Engine expansion braking with adjustable valve timing
    34.
    发明授权
    Engine expansion braking with adjustable valve timing 有权
    发动机膨胀制动,可调节气门正时

    公开(公告)号:US06959689B1

    公开(公告)日:2005-11-01

    申请号:US10888193

    申请日:2004-07-08

    IPC分类号: F01L9/04 F02D13/04

    摘要: A system and method for controlling operation of cylinder with at least an intake and exhaust valve and a piston are described. In one aspect, the method comprises maintaining at least one of the intake and exhaust valves in a closed position during a period. Further, closing the other of the intake and exhaust valves with the piston at a first position from, and then opening the other of the intake and exhaust valves at a second position of the piston closer to bottom center than said first position, during said period.

    摘要翻译: 描述了至少具有进气门和排气阀以及活塞来控制气缸的操作的系统和方法。 在一个方面,该方法包括在一段时间内将进气门和排气门中的至少一个保持在关闭位置。 此外,在活塞的第一位置处关闭另一个进气门和排气门,然后在活塞的第二位置处打开另一个进气门和排气门,使其在比所述第一位置更靠近底部中心的位置,在所述期间 。

    Method and system for estimating cylinder charge for internal combustion engines having variable valve timing
    35.
    发明授权
    Method and system for estimating cylinder charge for internal combustion engines having variable valve timing 失效
    用于估计具有可变气门正时的内燃机的气缸充气量的方法和系统

    公开(公告)号:US06850831B2

    公开(公告)日:2005-02-01

    申请号:US10289591

    申请日:2002-11-07

    摘要: A method for determining cylinder air charge and/or cylinder burned gas for an internal combustion engine system. The engine system includes cylinders, each one of such cylinders having at least one intake valve and at least one exhaust valve in communication with such cylinder. The method determines one of a plurality of different scenarios, each one of the scenarios representing a geometrical relationship between opening and closing of the intake valve relative to closing of the exhaust valve. The cylinder air charge and/or cylinder burned gas is calculated in accordance with the determined one of the plurality of scenarios. In one embodiment, the engine system stores a plurality of different software modules. The method selects one of the plurality of software modules in accordance with the determined one of the plurality of scenarios. The cylinder air charge and/or cylinder burned gas calculation comprises executing the selected one of the modules. In one embodiment, a memory stores a relationship between volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle determined in accordance with each one of the plurality of scenarios for each of a plurality of different intake valve opening and exhaust valve closing conditions. The method includes: determining from the memory the volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle for the intake valve opening and exhaust valve closing conditions; and, determining from volume occupied by residual gas in the at least one cylinders at a predetermined position of the at least one cylinder in the engine during the cycle the cylinder air charge and/or cylinder burned gas.

    摘要翻译: 一种用于确定用于内燃机系统的气缸充气和/或气缸燃烧气体的方法。 发动机系统包括气缸,这些气缸中的每一个具有至少一个进气阀和与该气缸连通的至少一个排气阀。 该方法确定多个不同场景中的一个,每个场景表示进气门相对于关闭排气门的打开和关闭之间的几何关系。 气缸充气和/或气缸燃烧气体根据所确定的多种场合中的一种进行计算。 在一个实施例中,发动机系统存储多个不同的软件模块。 该方法根据所确定的多个场景中的一个来选择多个软件模块中的一个。 气缸充气和/或气缸燃烧气体计算包括执行所选择的一个模块。 在一个实施例中,存储器存储在根据多个场景中的每一个所确定的循环期间,在发动机中的至少一个气缸的预定位置处,至少一个气缸中的残余气体占据的体积之间的关系, 多个不同的进气门打开和排气门关闭条件。 该方法包括:在进气门打开和排气门关闭条件的循环期间,从存储器中确定发动机中的至少一个气缸的预定位置处的至少一个气缸中的残余气体占据的体积; 并且在循环期间,在气缸充气和/或气缸燃烧气体的循环期间,确定发动机中的至少一个气缸的预定位置处的至少一个气缸中的残留气体的体积。

    Method for particulate filter regeneration in vehicles having an automatically controlled transmission
    36.
    发明授权
    Method for particulate filter regeneration in vehicles having an automatically controlled transmission 有权
    具有自动控制传动装置的车辆中的微粒过滤器再生方法

    公开(公告)号:US06738702B2

    公开(公告)日:2004-05-18

    申请号:US10232551

    申请日:2002-08-29

    IPC分类号: G06F1700

    摘要: A system is described for minimizing engine torque disturbances that would otherwise cause degraded drive feel by a vehicle driver. The system utilizes multiple torque transmission paths of a transaxle unit mounted to the engine. The system manipulates the torque transmitted by adjusting the clutches of multiple torque transmission paths so that the torque disturbance in the engine results in relatively constant vehicle drive torque. In particular, during particulate filter regeneration, a potential torque increase is transmitted through multiple torque paths of the transmission to maintain output torque relatively constant.

    摘要翻译: 描述了一种用于最小化否则将导致车辆驾驶员的驾驶感觉降低的发动机扭矩扰动的系统。 该系统利用安装在发动机上的变速驱动桥单元的多个转矩传递路径。 该系统通过调节多个扭矩传递路径的离合器来操纵传递的扭矩,使得发动机中的转矩扰动导致相对恒定的车辆驱动扭矩。 特别地,在微粒过滤器再生期间,潜在的转矩增加通过变速器的多个转矩路径传递,以保持输出转矩相对恒定。

    Control system for direct injection spark ignition engines with a cam profile switching device
    37.
    发明授权
    Control system for direct injection spark ignition engines with a cam profile switching device 有权
    具有凸轮轮廓切换装置的直喷式火花点火发动机控制系统

    公开(公告)号:US06736105B1

    公开(公告)日:2004-05-18

    申请号:US10281936

    申请日:2002-10-29

    IPC分类号: F02B3100

    摘要: A system and method for controlling air charge motion in the cylinder of a direct injection spark ignition engine during transitions between different combustion modes is provided. The system includes a cam profile switching device that controls the position of an intake valve for the cylinder. The system further includes an electronic control unit configured to control the cam profile switching device to position the intake valve in a first position in advance of the transition and to move the intake valve to a second position when a predetermined condition for transitioning between the two combustion modes is met.

    摘要翻译: 提供了一种用于在不同燃烧模式之间转换期间控制直喷式火花点火发动机的气缸中的空气充气运动的系统和方法。 该系统包括控制气缸的进气阀的位置的凸轮轮廓切换装置。 该系统还包括电子控制单元,该电子控制单元被配置为控制凸轮轮廓切换装置,以将进气门定位在过渡之前的第一位置,并且当用于在两个燃烧之间转变的预定条件时将进气门移动到第二位置 模式得到满足。