利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

40 条记录 (耗时 0.043 秒)

    Compressor flow control
    21.
    发明授权
    Compressor flow control 有权
    压缩机流量控制

    公开(公告)号：US08739530B2

    公开(公告)日：2014-06-03

    申请号：US13293642

    申请日：2011-11-10

    申请人： Deborah M. Bjorge ,  Julia Helen Buckland

    发明人： Deborah M. Bjorge ,  Julia Helen Buckland

    IPC分类号： F02B37/12

    CPC分类号： F02B37/001 ,  F02B37/007 ,  F02B37/127 ,  F02B37/16 ,  F02B37/18 ,  F02B2037/125 ,  F02D23/00 ,  Y02T10/144

    摘要： An engine system is provided. The system comprises an engine, first and second compressors supplying air to the engine, a first compressor recirculation valve adjustable to two restriction levels, and a second compressor recirculation valve adjustable to three or more restriction levels. In this way, the first and second compressor recirculation valves may be controlled to avoid compressor surge while providing a sufficient amount of boost to meet power demands.

    摘要翻译： 提供发动机系统。 该系统包括向发动机供应空气的发动机，第一和第二压缩机，可调节到两个限制水平的第一压缩机再循环阀，以及可调节到三个或更多限制水平的第二压缩机再循环阀。 以这种方式，可以控制第一和第二压缩机再循环阀，以避免压缩机浪涌，同时提供足够量的升压以满足功率需求。

    Method and system for operating an engine having a turbocharger with at least two discrete positions and exhaust gas recirculation (EGR)
    28.
    发明授权
    Method and system for operating an engine having a turbocharger with at least two discrete positions and exhaust gas recirculation (EGR) 有权
    用于操作具有至少两个离散位置的涡轮增压器和废气再循环（EGR）的发动机的方法和系统，

    公开(公告)号：US06604361B2

    公开(公告)日：2003-08-12

    申请号：US09993454

    申请日：2001-11-26

    申请人： Julia Helen Buckland ,  Ilya V. Kolmanovsky

    发明人： Julia Helen Buckland ,  Ilya V. Kolmanovsky

    IPC分类号： F02B3344

    CPC分类号： F02C6/12 ,  F01D17/14 ,  F02B37/24 ,  F02B47/08 ,  F02D21/08 ,  F02M26/05 ,  F02M26/10 ,  Y02T10/121 ,  Y02T10/144

    摘要： A method and system for controlling an engine having a turbocharger with at least two discrete positions and exhaust gas recirculation (EGR). The method includes producing a control signal to the turbocharger. The signal has two discrete levels. One of such levels is selected to provide a proper flow of air through the turbocharger to an intake of the engine and such selected level is modulated between such two levels over time to provide, over time, a proper pressure at an input of the EGR to enable a proper flow of exhaust gases from the exhaust of the engine through the EGR back to the intake of the engine. With such method, while there is relatively instantaneous control of the exhaust pressure at the input of the EGR, and hence proper instantaneous control of EGR flow through the EGR. Because of the relatively large inertia, and hence slower response time of the turbocharger to the control signal the turbocharger maintains proper boost flow to the input of the engine via the turbocharger with its accompanying improved fuel efficiency.

    摘要翻译： 一种用于控制具有至少两个离散位置的涡轮增压器和排气再循环（EGR）的发动机的方法和系统。 该方法包括向涡轮增压器产生控制信号。 信号有两个离散的电平。 选择这样一个等级以提供通过涡轮增压器的适当空气流到发动机的进气口，并且这种选定的水平随时间在这两个水平之间被调制，以随着时间的推移在EGR输入端提供适当的压力， 使得能够将来自发动机的排气的废气的适当流动通过EGR返回到发动机的进气口。 利用这种方法，虽然对EGR输入端的排气压力进行相对瞬时的控制，并且因此对通过EGR的EGR流的适当瞬时控制。 由于相对较大的惯性，因此涡轮增压器对控制信号的响应时间较慢，涡轮增压器通过涡轮增压器保持对发动机的输入的适当的增压流，同时伴随燃料效率的提高。

    Adaptive torque model for internal combustion engine
    29.
    发明授权
    Adaptive torque model for internal combustion engine 有权
    内燃机自适应扭矩模型

    公开(公告)号：US06553958B1

    公开(公告)日：2003-04-29

    申请号：US09833237

    申请日：2001-04-11

    申请人： Ilya V Kolmanovsky ,  Julia Helen Buckland ,  Jing Sun

    发明人： Ilya V Kolmanovsky ,  Julia Helen Buckland ,  Jing Sun

    IPC分类号： F02B1700

    CPC分类号： F02B17/005 ,  F02B23/104 ,  F02B2075/125 ,  F02D41/0097 ,  F02D41/1402 ,  F02D2041/1433 ,  F02D2200/1004 ,  F02D2250/18 ,  Y02T10/123

    摘要： A system and method for controlling a multi-cylinder internal combustion engine include determining a first engine operating variable using a model having at least one adjustable model parameter, measuring a second engine operating variable, and modifying the at least one adjustable model parameter based on a relationship between the first and second engine operating variables. In one embodiment, the first engine operating variable represents engine torque while the second engine operating variable is engine speed. An engine torque model and/or load torque model may be used to determine an estimated engine speed or speed trajectory which is compared to the actual engine speed or trajectory determined using an engine speed sensor. One or more model parameters for the engine torque and/or load torque model are adjusted when appropriate operating conditions are met based on a difference between the predicted or estimated engine speeds and the measured engine speeds.

    摘要翻译： 用于控制多气缸内燃机的系统和方法包括使用具有至少一个可调模型参数的模型来确定第一发动机操作变量，测量第二发动机操作变量，以及基于 第一和第二发动机运行变量之间的关系。 在一个实施例中，第一发动机操作变量表示发动机扭矩，而第二发动机操作变量是发动机转速。 发动机转矩模型和/或负载转矩模型可用于确定与使用发动机转速传感器确定的实际发动机转速或轨迹进行比较的估计的发动机转速或速度轨迹。 基于预测或估计的发动机速度与所测量的发动机速度之间的差异来满足适当的操作条件时，调整发动机转矩和/或负载转矩模型的一个或多个模型参数。