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    • 1. 发明授权
    • Fuel scheduling as a function of misfire rate
    • 燃油调度作为失火率的函数
    • US5735246A
    • 1998-04-07
    • US723400
    • 1996-09-30
    • Michael T. VincentMark S. BorlandKim A. MorehouseJames R. Tamm
    • Michael T. VincentMark S. BorlandKim A. MorehouseJames R. Tamm
    • F02D41/14
    • F02D41/1498F02D2200/1015
    • A system is provided for controlling the ratio of fuel to air in an internal combustion engine to protect the catalyst substrate of a catalytic convertor from thermal damage. The system comprises detecting a misfire rate and adjusting the amount of fuel within the system accordingly. More particularly, the detected misfire rate is compared to at least one predetermined misfire rate within the engine control unit. If the detected misfire rate is not equal to the predetermined rate, the ratio of fuel to air is changed a calibrated amount. Accordingly, when the misfire rate exceeds a predetermined rate, additional fuel is added to the system. By increasing the ratio of fuel to air, the oxidation reaction is reduced and the exothermic activity within the catalytic converter is lowered.
    • 提供一种用于控制内燃机中的燃料与空气的比例的系统,以保护催化转化器的催化剂基质免受热损伤。 该系统包括检测失火速率并相应地调节系统内的燃料量。 更具体地,将检测到的失火速率与发动机控制单元内的至少一个预定失火速率进行比较。 如果检测到的失火速率不等于预定速率,则燃料与空气的比率被改变为校准量。 因此,当失火速率超过预定速率时,附加的燃料被添加到系统中。 通过增加燃料与空气的比例,氧化反应降低,催化转化器内的放热活性降低。
    • 3. 发明授权
    • Purge corruption detection
    • 清除损坏检测
    • US4821701A
    • 1989-04-18
    • US213667
    • 1988-06-30
    • Robert J. Nankee, IIDouglas C. FrantzJames R. TammTerry R. Gutermuth
    • Robert J. Nankee, IIDouglas C. FrantzJames R. TammTerry R. Gutermuth
    • F02D41/06F02D41/14F02D41/24F02M25/08
    • F02D41/064F02D41/2445F02D41/2451F02D41/2461F02M25/08
    • A system and method for the detection and correction of purge corruption in the adaptive memory portion of a control system controlling, in part, the fuel to air ratio during the cold start up of an internal combustion engine. This is achieved by performing two calibrations (or updates) of the adaptive memory cells (or locations) during the previous engine operation. The adaptive memory is first updated with the purge system off. The memory locations addressed at this time are denoted as the purge free adaptive memory cells. Next, the adaptive memory is updated with the purge system on. These memory locations are denoted as the normal adaptive memory cells. During the next cold engine start, purge corruption of the adaptive memory is detected when the difference between the two calibrations exceeds a value representing an absence of purge corruption.
    • 一种用于检测和校正控制系统的自适应存储器部分中的吹扫损坏的系统和方法,所述控制系统部分地控制内燃机的冷起动期间的燃料与空气比。 这通过在先前发动机操作期间执行自适应存储器单元(或位置)的两次校准(或更新)来实现。 首先使用清除系统关闭自适应内存。 此时寻址的存储器位置被表示为无清除自适应存储器单元。 接下来,打开自动清理系统更新自适应内存。 这些存储器位置被表示为正常自适应存储器单元。 在下一个冷引擎启动期间,当两个校准之间的差异超过表示不存在清除损坏的值时,检测到自适应存储器的清除损坏。
    • 4. 发明授权
    • Method of determining the engine charge temperature for fuel and spark control of an internal combustion engine
    • 确定内燃机的燃料和火花控制的发动机充气温度的方法
    • US06286366B1
    • 2001-09-11
    • US09189719
    • 1998-11-11
    • Gang ChenZhijian James WuAnson LeeKerry D. FranksTimothy L. McDonaldJames R. Tamm
    • Gang ChenZhijian James WuAnson LeeKerry D. FranksTimothy L. McDonaldJames R. Tamm
    • G01L326
    • F02D41/32F02D41/0065F02D2200/0406F02D2200/0414
    • A technique for determining the charge air temperature within an intake manifold of an internal combustion engine of a vehicle without using a dedicated temperature sensor. The technique includes identifying a non-linear dynamic model based on the physical concepts of thermal transfer and system identification technique. The charge air temperature model uses several available physical measurements from the vehicle, including inlet air temperature, engine coolant temperature, vehicle speed, manifold pressure, engine speed, exhaust gas recirculation condition, and the engine fan on/off state. The model parameters are determined based on specific vehicle characteristics, and collected data from the vehicle. The charge air temperature is predicted by the model at regular predetermined intervals from the physical measurements, the vehicle parameters and the charge air temperature from the previous time. An estimation of an initial charge air temperature when the vehicle is turned on can be obtained based on the available temperature sensor readings when vehicle is turned on and stored data of the charge temperature, and all the measured temperature readings just before the engine was turned off.
    • 一种用于在不使用专用温度传感器的情况下确定车辆内燃机的进气歧管内的增压空气温度的技术。 该技术包括基于热传递和系统识别技术的物理概念识别非线性动态模型。 增压空气温度模型使用来自车辆的几种可用的物理测量,包括入口空气温度,发动机冷却剂温度,车辆速度,歧管压力,发动机速度,废气再循环状况和发动机风扇开/关状态。 模型参数根据特定车辆特性确定,并从车辆收集数据。 从物理测量,车辆参数和前一次的增压空气温度以规定的预定间隔,模型预测增压空气温度。 可以基于车辆开启时可用的温度传感器读数和存储充电温度的数据以及在发动机关闭之前的所有测量温度读数来获得车辆接通时的初始增压空气温度的估计 。