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    SYSTEM AND METHODS TO DETECT NON-UREA REDUCTANT FILLED IN A UREA TANK
    3.
    发明申请
    SYSTEM AND METHODS TO DETECT NON-UREA REDUCTANT FILLED IN A UREA TANK 有权
    用于检测在尿素罐中填充的非尿素还原剂的系统和方法

    公开(公告)号：US20100083636A1

    公开(公告)日：2010-04-08

    申请号：US12245830

    申请日：2008-10-06

    申请人： Yue-Yun Wang ,  Ognyan N. Yanakiev ,  Man-Feng Chang

    发明人： Yue-Yun Wang ,  Ognyan N. Yanakiev ,  Man-Feng Chang

    IPC分类号： F01N11/00

    CPC分类号： F01N3/2066 ,  F01N9/00 ,  F01N11/00 ,  F01N2240/20 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2610/00 ,  Y02T10/24 ,  Y02T10/47

    摘要： A method for indicating a non-urea reductant fault in a powertrain including an internal combustion engine and an aftertreatment system having an aftertreatment device utilizing a catalyst to convert NOx includes monitoring a NOx content exiting the aftertreatment system subsequent to a powertrain start-up event through a test span, monitoring a measure of NOx content entering the aftertreatment system subsequent to a powertrain start-up event through the test span, and determining a measure of NOx conversion accomplished in the aftertreatment device based upon the NOx content exiting the aftertreatment system and the measure of NOx content entering the aftertreatment system. The method includes, through the test span, comparing the measure of NOx conversion determined at a start of the test span to the measure of NOx conversion at a later time within the test span. A non-urea reductant fault is indicated based upon the comparing identifying a reduction in NOx conversion accomplished in the aftertreatment device between the start of the test span and the later time within the test span.

    摘要翻译： 一种用于指示包括内燃机和具有利用催化剂转化NOx的后处理装置的后处理装置的动力系中的非尿素还原剂故障的方法包括在动力系启动事件之后监测离开后处理系统的NOx含量，通过 测试跨度，监测在通过测试跨度的动力系启动事件之后进入后处理系统的NOx含量的量度，以及基于离开后处理系统的NOx含量确定在后处理装置中完成的NOx转化的量度， 测量进入后处理系统的NOx含量。 该方法包括，通过测试跨度，将在测试跨度开始时确定的NOx转化量与在测试范围内的稍后时间内的NOx转化量进行比较。 基于比较确定在测试跨度开始和测试跨度之后的后期处理装置中完成的NOx转化率的降低来指示非尿素还原剂故障。

    Method and apparatus for controlling transitions in an engine having multi-step valve lift
    4.
    发明授权
    Method and apparatus for controlling transitions in an engine having multi-step valve lift 有权
    用于控制具有多级气门升程的发动机中的过渡的方法和装置

    公开(公告)号：US07689344B2

    公开(公告)日：2010-03-30

    申请号：US11760249

    申请日：2007-06-08

    申请人： Jun-Mo Kang ,  Chen-Fang Chang ,  Jyh-Shin Chen ,  Man-Feng Chang

    发明人： Jun-Mo Kang ,  Chen-Fang Chang ,  Jyh-Shin Chen ,  Man-Feng Chang

    IPC分类号： F02D19/00 ,  F01L1/00

    CPC分类号： F02D41/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/344 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2800/00 ,  F02D13/0203 ,  F02D41/3035 ,  F02D41/3064 ,  F02D2041/001 ,  Y02T10/18

    摘要： There is provided a method for controlling engine valves of an internal combustion engine adapted to selectively operate at one of a first open position and a second open position, including controlling engine operation during a transition from a first to a second combustion mode. The method comprises determining a desired engine airflow based upon an operator torque request. A cylinder intake volume is determined for the desired engine airflow when operating at the first open position. A control scheme is determined to control the engine valves to attain the cylinder intake volume for the desired engine airflow when operating at the second open position. The control scheme is executed and the engine valve is transitioned to the second open position when the cylinder intake volume to operate at the second open position is within a range of authority of the engine valves.

    摘要翻译： 提供了一种用于控制内燃机的发动机阀的方法，所述内燃机适于在第一打开位置和第二打开位置中的一个位置选择性地操作，包括在从第一燃烧模式转换到第二燃烧模式期间控制发动机操作。 该方法包括基于操作者扭矩请求确定期望的发动机气流。 当在第一打开位置操作时，确定所需发动机气流的气缸进气体积。 确定控制方案以在第二打开位置操作时控制发动机气门以达到所需发动机气流的气缸进气体积。 当在第二打开位置操作的气缸进气体积在发动机气门的权限范围内时，执行控制方案并且发动机气门转换到第二打开位置。

    Predictive energy management system for hybrid electric vehicles
    9.
    发明授权
    Predictive energy management system for hybrid electric vehicles 有权
    混合动力汽车预测能源管理系统

    公开(公告)号：US07360615B2

    公开(公告)日：2008-04-22

    申请号：US10864670

    申请日：2004-06-09

    申请人： Mutasim A. Salman ,  Jyh-Shin Chen ,  Man-Feng Chang

    发明人： Mutasim A. Salman ,  Jyh-Shin Chen ,  Man-Feng Chang

    IPC分类号： B60K6/04

    CPC分类号： B60W20/12 ,  B60K6/52 ,  B60L3/0046 ,  B60L11/14 ,  B60L11/1859 ,  B60L11/1861 ,  B60L15/2045 ,  B60L2240/62 ,  B60L2260/54 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/00 ,  B60W20/13 ,  B60W50/0097 ,  B60W2530/14 ,  B60W2550/402 ,  Y02T10/6265 ,  Y02T10/6291 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7283 ,  Y02T10/7291 ,  Y02T90/16 ,  Y02T90/162

    摘要： A predictive energy management system for a hybrid vehicle that uses certain vehicle information, such as present location, time, 3-D maps and driving history, to determine engine and motor power commands. The system forecasts a driving cycle profile and calculates a driver power demand for a series of N samples based on a predetermined length of time, adaptive learning, etc. The system generates the optimal engine and motor power commands for each N sample based on the minimization of a cost function under constraint equations. The constraint equations may include a battery charge power limit, a battery discharge power limit, whether the battery state of charge is less than a predetermined maximum value, whether the battery state of charge is greater than a predetermined minimum value, motor power output and engine performance. The system defines the cost function as the sum of the total weighted predicted fuel consumed for each sample. The system then selects the motor and engine power commands for the current sample.

    摘要翻译： 一种混合动力车辆的预测能量管理系统，其使用诸如当前位置，时间，3-D地图和驾驶历史的某些车辆信息来确定发动机和电动机功率命令。 该系统基于预定的时间长度，自适应学习等来预测行驶周期曲线并计算一系列N个采样的驱动器功率需求。系统基于最小化为每个N个采样生成最优的发动机和电机功率命令 的约束方程下的成本函数。 约束方程式可以包括电池充电功率限制，电池放电功率限制，电池充电状态是否小于预定最大值，电池充电状态是否大于预定最小值，电动机功率输出和发动机 性能。 系统将成本函数定义为每个样本消耗的总加权预测燃料的总和。 然后系统选择当前样品的电机和发动机功率命令。

    Predictive spark timing method
    10.
    发明授权
    Predictive spark timing method 失效
    预测火花定时方法

    公开(公告)号：US4893244A

    公开(公告)日：1990-01-09

    申请号：US237021

    申请日：1988-08-29

    申请人： Dah-Lain Tang ,  Man-Feng Chang ,  Myrna C. Sultan

    发明人： Dah-Lain Tang ,  Man-Feng Chang ,  Myrna C. Sultan

    IPC分类号： F02P5/15 ,  F02P7/077

    CPC分类号： F02P5/1504 ,  F02P7/0775 ,  Y02T10/46

    摘要： A microprocessor based electronic spark control for an internal combustion engine is programmed to determine spark time using a prediction of engine speed during the spark period in which the next spark should occur and to make the calculations immediately prior to that period. The prediction is based upon the most recent speed information including a reference period value just prior to the next spark period. Reference pulses produced from a crankshaft driven transducer determine the measured reference periods and preferably comprise a plurality of pulses per spark event. One reference period is chosen as a base period and a weighted difference of recent periods is used to adjust the base to predict the spark period. The spark period or the corresponding engine speed is used in calculating the spark angle and the conversion to spark time. A hardware interrupt to the microprocessor causes the calculations to be made when the reference pulse nearest the next spark occurs.