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1.发明授权公开(公告)号：US06415656B1
公开(公告)日：2002-07-09
申请号：US09563644
申请日：2000-05-02
IPC分类号： G01M1500
摘要： A misfire monitoring method and system employ an indicated mean effective pressure (IMEP) parameter for misfire monitoring of an internal combustion engine of a vehicle. The method and system include determining displacement and torque of the engine. An indicated mean effective pressure (IMEP) parameter is then calculated for the engine. The indicated mean effective pressure (IMEP) parameter is engine torque divided by engine displacement. A misfire monitor monitors the indicated mean effective pressure (IMEP) parameter to detect misfire. The method and system include determining maximum indicated mean effective pressure (IMEP_MAX) parameter for the engine. A normalized indicated mean effective pressure (IMEP_LOAD) parameter for the engine is then calculated. The normalized indicated mean effective pressure (IMEP_LOAD) parameter is the indicated mean effective pressure (IMEP) parameter divided by the maximum indicated mean effective pressure (IMEP_MAX) parameter. Monitoring the indicated mean effective pressure (IMEP) parameter to detect misfire includes monitoring the normalized indicated mean effective pressure (IMEP_LOAD) parameter to detect misfire.
摘要翻译： 失火监测方法和系统采用指示的平均有效压力（IMEP）参数用于车辆内燃机的失火监测。 该方法和系统包括确定发动机的排量和扭矩。 然后为发动机计算指示的平均有效压力（IMEP）参数。 指示的平均有效压力（IMEP）参数是发动机扭矩除以发动机排量。 失火监视器监视指示的平均有效压力（IMEP）参数以检测失火。 该方法和系统包括确定发动机的最大指示平均有效压力（IMEP_MAX）参数。 然后计算发动机的归一化指示平均有效压力（IMEP_LOAD）参数。 归一化的指示平均有效压力（IMEP_LOAD）参数是指示的平均有效压力（IMEP）参数除以最大指示平均有效压力（IMEP_MAX）参数。 监测指示的平均有效压力（IMEP）参数以检测失火包括监测归一化的指示平均有效压力（IMEP_LOAD）参数以检测失火。
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公开(公告)号：US5659389A
公开(公告)日：1997-08-19
申请号：US764427
申请日：1996-12-12
CPC分类号： G01D5/342
摘要： A system for calibrating production throttle bodies in which a throttle body (18) is mounted in a fixture (16) and light is transmitted by a light source (12) through the throttle body main bore (20) onto a translucent screen (22). A camera (14) senses the light regions (34) and transmits the information to a controller (26), which calculates the angular position of the throttle valve (32).
摘要翻译： 一种用于校准节气门体（18）安装在固定装置（16）中的生产节气门体的系统，并且光由光源（12）通过节气门体主孔（20）传播到半透明屏幕（22）上， 。 相机（14）感测光区域（34）并将信息发送到计算节气门（32）的角位置的控制器（26）。
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3.发明授权System and method for determining engine control parameters based on engine torque 有权基于发动机扭矩确定发动机控制参数的系统和方法公开(公告)号：US06425373B1
公开(公告)日：2002-07-30
申请号：US09366936
申请日：1999-08-04
IPC分类号： F02D4100
CPC分类号： F02D37/02 , B60W2710/0622 , B60W2710/0666 , F02D43/00 , F02D2041/1433 , F02D2200/1006 , F02D2250/18
摘要： A system and method for determining control parameters for an engine include modifying a first engine torque based on estimated losses associated with a previously determined desired engine load to determine a second engine torque, modifying the second engine torque based on a desired ignition angle and air/fuel ratio to determine a third engine torque, determining a desired engine load based on the third engine torque, and converting the desired engine load to at least one engine control parameter. The invention recognizes that the transformation between torque and airflow is an affine transformation rather than a linear transformation. The present invention also recognizes the significant interrelations between various engine control parameters such as air/fuel ratio and ignition timing by determining control parameters after the desired torque has been fully compensated for losses and using a single function to account for air/fuel ratio and ignition angle excursions. In addition, the present invention accounts for the reduction in secondary pumping effects which may reduce pumping losses in some applications.
摘要翻译： 用于确定发动机的控制参数的系统和方法包括基于与先前确定的期望发动机负载相关联的估计损失来修改第一发动机扭矩以确定第二发动机扭矩，基于期望的点火角修改第二发动机转矩和空气/ 以确定第三发动机扭矩，基于第三发动机扭矩确定期望的发动机负载，以及将期望的发动机负载转换为至少一个发动机控制参数。 本发明认识到扭矩和气流之间的转换是仿射变换而不是线性变换。 本发明还通过在期望的扭矩已经完全补偿损耗并且使用单个功能来考虑空气/燃料比和点燃之后确定控制参数来识别各种发动机控制参数（例如空燃比和点火正时）之间的显着相互关系 角度偏移 此外，本发明考虑到二次泵送效应的降低，其可能在一些应用中减少泵送损失。
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公开(公告)号：US5714673A
公开(公告)日：1998-02-03
申请号：US748038
申请日：1996-11-13
CPC分类号： G01M15/09 , F02D41/222 , G01L27/007 , F02D2200/0406 , F02D2200/0408 , Y02T10/40
摘要： An inferred manifold absolute pressure based in part on measured manifold mass air flow is compared with a measured manifold absolute pressure from a MAP sensor and if the rolling average of the difference between the two exceeds either a rich or lean limit, an indicator is energized and a code is stored to identify possible MAP sensor deterioration.
摘要翻译： 将部分基于测量的歧管质量空气流量的推断歧管绝对压力与来自MAP传感器的测量歧管绝对压力进行比较，并且如果两者之间的差异的滚动平均值超过浓或极限，则指示器被激励， 存储代码以识别可能的MAP传感器劣化。
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5.发明授权System and method for determining engine torque for controlling a powertrain 失效用于确定用于控制动力系的发动机扭矩的系统和方法公开(公告)号：US06434466B1
公开(公告)日：2002-08-13
申请号：US09306307
申请日：1999-05-06
IPC分类号： G06F1700
CPC分类号： F02D41/0225 , B60W10/04 , B60W10/06 , B60W10/11 , B60W30/18 , B60W30/1819 , B60W2510/0638 , B60W2510/1005 , B60W2710/0666 , B60W2710/105 , F02D2200/1006 , F02D2200/501 , F02D2250/18 , F02D2400/12 , F16H2059/385 , Y10T477/675 , Y10T477/679 , Y10T477/68
摘要： A system and method for controlling a powertrain including an automatic transmission include determining a desired wheel torque, determining engine speed, determining turbine speed, determining a selected gear and associated selected gear ratio, determining a transmission spin loss based on a first function of the turbine speed and the selected gear, determining a transmission torque proportional loss based on a second function of the turbine speed and the selected gear, determining a desired engine torque based on the transmission spin loss, the transmission torque proportional loss, and the selected gear ratio, and controlling the powertrain using the desired engine torque such that actual wheel torque approaches the desired wheel torque. A transmission pump loss may also be determined based on line pressure and engine speed. An alternative strategy determines engine torque using a power-based calculation if the vehicle speed is above a predetermined threshold, and a gear ratio based calculation if the vehicle speed does not exceed the predetermined threshold. Strategies for determination of the desired or requested engine torque during a gear shift or ratio change include a first strategy which determines an engine torque corresponding to the current gear ratio and the target gear ratio with the desired engine torque being interpolated between the two values. Turbine speed may be determined by an appropriate sensor or estimated. Alternatively, torque converter slip may be utilized with the slip value held constant for a predetermined time during the ratio change.
摘要翻译： 用于控制包括自动变速器的动力系统的系统和方法包括确定期望的车轮转矩，确定发动机转速，确定涡轮速度，确定所选择的齿轮和相关联的选定齿轮比，基于涡轮机的第一功能确定传动自旋损耗 速度和所选齿轮，基于涡轮转速和所选齿轮的第二函数确定传动扭矩比例损失，基于传动自旋损失，传动扭矩比例损失和所选择的传动比来确定期望的发动机转矩， 以及使用期望的发动机扭矩来控制动力系，使得实际的车轮转矩接近期望的车轮转矩。 传动泵损失也可以基于管路压力和发动机转速来确定。 如果车辆速度高于预定阈值，则替代策略使用基于功率的计算来确定发动机扭矩，以及如果车辆速度不超过预定阈值，则确定基于齿轮比的计算。 在变速或换档期间确定期望的或要求的发动机扭矩的策略包括第一策略，其确定与当前齿轮比和目标齿轮比相对应的发动机扭矩，其中在两个值之间插入期望的发动机转矩。 涡轮机速度可由适当的传感器确定或估计。 或者，可以利用变矩器滑移，在比率改变期间，滑差值保持恒定一段预定时间。
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公开(公告)号：US06401026B2
公开(公告)日：2002-06-04
申请号：US09891488
申请日：2001-06-25
IPC分类号： G06F1900
CPC分类号： F02P5/1504 , F02D41/0087 , F02D41/083 , F02D41/1497 , F02D2041/0017 , F02D2041/1409 , F02D2041/1422 , F02D2200/1004 , F02D2200/1006 , F02D2250/18 , Y02T10/46
摘要： A computer readable storage medium having instructions for controlling an engine includes instructions for determining a desired engine brake torque and modifying the desired engine brake torque based on current engine operating conditions to determine a requested engine brake torque prior to determination of control parameters, including at least one of an airflow and a fuel quantity, to effect the requested engine brake torque. Preferably, the desired engine brake torque is modified by combining the desired engine brake torque with an idle speed torque to generate a first intermediate torque, comparing the first intermediate torque to an actual engine brake torque to generate a second intermediate torque, generating a feedback correction torque based on the second intermediate torque, and combining the first intermediate torque, the feedback correction torque, and a third intermediate torque to determine the requested engine brake torque.
摘要翻译： 具有用于控制发动机的指令的计算机可读存储介质包括用于确定期望的发动机制动转矩并基于当前发动机操作条件来修改期望的发动机制动转矩的指令，以在确定控制参数之前确定所请求的发动机制动转矩， 一个气流和一个燃料量，以实现要求的发动机制动转矩。 优选地，期望的发动机制动转矩通过将期望的发动机制动转矩与怠速转矩组合以产生第一中间转矩来修改，以将第一中间转矩与实际的发动机制动转矩进行比较以产生第二中间转矩，产生反馈校正 基于第二中间转矩的转矩，以及组合第一中间转矩，反馈校正转矩和第三中间转矩，以确定所请求的发动机制动转矩。
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7.发明授权公开(公告)号：US06363316B1
公开(公告)日：2002-03-26
申请号：US09642958
申请日：2000-08-21
IPC分类号： G06F1548
CPC分类号： F02D41/1402 , F02D11/105 , F02D41/18 , F02D2041/1416 , F02D2041/1433 , F02D2200/0402
摘要： A system and method for controlling an internal combustion engine to improve air/fuel ratio control particularly during transient operating modes include estimating cylinder air charge during a future fuel injection event. The system and method use a dynamic airflow actuator position model to determine future actuator position which is then used by an airflow model and manifold filling model to provide the estimated future cylinder air charge. The system and method use observer-based and adaptive control to compensate for modeling errors and sensor dynamics while assuring stability and accurate prediction of airflow actuator position and airflow.
摘要翻译： 用于控制内燃机以改善空燃比控制的系统和方法，特别是在瞬态运行模式期间，包括在将来的燃料喷射事件期间估计气缸空气充量。 该系统和方法使用动态气流致动器位置模型来确定将来的致动器位置，然后由气流模型和歧管填充模型使用来提供估计的未来气缸充气。 该系统和方法使用基于观察者和自适应控制来补偿建模误差和传感器动力学，同时确保气流致动器位置和气流的稳定性和准确预测。
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8.发明授权Torque based driver demand interpretation with barometric pressure compensation 有权基于扭矩的驾驶员需求解释与大气压力补偿公开(公告)号：US06246951B1
公开(公告)日：2001-06-12
申请号：US09306332
申请日：1999-05-06
IPC分类号： G06F1578
CPC分类号： F02D11/105 , F02B2275/32 , F02D2200/703 , Y02T10/142
摘要： A system and method for controlling a powertrain including an internal combustion engine include generating a signal indicative of driver requested engine output, generating a signal indicative of current vehicle speed, determining a reference engine output parameter based on the driver requested engine output signal and the signal indicative of current vehicle speed, determining a value indicative of current barometric pressure, modifying the reference engine output parameter based on the value indicative of current barometric pressure, and controlling the engine based on the modified reference parameter. In one embodiment, the invention adjusts a base driver demanded torque based on barometric pressure to preserve full pedal travel and prevent “dead pedal” feel when operating the vehicle at high altitudes and maximum engine torque output. As such, the accelerator pedal position is interpreted as a request for a portion or percentage of the currently available engine torque or power which varies as a function of the barometric pressure.
摘要翻译： 用于控制包括内燃机的动力系统的系统和方法包括产生指示驾驶员所要求的发动机输出的信号，产生指示当前车辆速度的信号，基于驾驶员所要求的发动机输出信号和信号来确定参考发动机输出参数 指示当前车速，确定表示当前大气压力的值，基于表示当前气压的值修改参考发动机输出参数，以及基于修改的参考参数来控制发动机。 在一个实施例中，本发明基于气压来调整基座驾驶员所需扭矩以保持全踏板行程，并且在高海拔地区操作车辆和最大发动机转矩输出时防止“死板踏板”感觉。 因此，加速器踏板位置被解释为对当前可用的发动机扭矩或功率的一部分或百分比的要求，其作为大气压力的函数而变化。
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9.发明授权
公开(公告)号：US6119063A
公开(公告)日：2000-09-12
申请号：US307449
申请日：1999-05-10
CPC分类号： F02D31/003 , F02D11/105 , F02D41/08 , F02D41/14 , F02D2041/1409 , F02D2041/1418 , F02D2250/18
摘要： A system and method for controlling an internal combustion engine using a controller to implement at least two control modes having corresponding first and second mode controllers with disparate control parameters include comparing output of the first and second mode controllers to generate an error, generating a correction value based on the error, and providing the correction value to one of the mode controllers to provide a smooth transition of control between the mode controllers. In one embodiment, the first controller is a torque controller which determines a desired air flow to achieve a desired torque and the second mode controller is an idle speed controller which determines a desired air flow to maintain a desired engine speed. The invention is advantageous in that it provides for smooth transitions between control modes, such as between idle mode and a normal driving mode, by harmonizing the outputs of the controllers. Drivability is improved by eliminating an aggressive and/or sluggish response to accelerator pedal position when transitioning between idle speed control and normal driving modes.
摘要翻译： 一种用于使用控制器控制内燃机以实现具有不同控制参数的具有对应的第一和第二模式控制器的至少两个控制模式的系统和方法，包括比较第一和第二模式控制器的输出以产生误差，产生校正值 并且向模式控制器之一提供校正值，以提供模式控制器之间的平滑过渡控制。 在一个实施例中，第一控制器是转矩控制器，其确定期望的空气流以实现期望的转矩，并且第二模式控制器是怠速控制器，其确定期望的气流以保持期望的发动机转速。 本发明的优点在于，其通过协调控制器的输出来提供诸如空转模式和正常驱动模式之间的控制模式之间的平滑过渡。 通过消除在怠速控制和正常驾驶模式之间转换时对加速器踏板位置的积极和/或缓慢的响应来提高可驱动性。
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10.发明授权Automatic transmission dynamic electronic pressure control based on desired powertrain output 有权基于所需动力系输出的自动变速器动态电子压力控制公开(公告)号：US06364812B1
公开(公告)日：2002-04-02
申请号：US09309817
申请日：1999-05-11
IPC分类号： F16H6126
CPC分类号： F16H61/061 , F16H59/18 , F16H59/44 , F16H61/24 , Y10T477/693962
摘要： A system and method for controlling a powertrain including an automatic transmission include determining a value representing requested powertrain output, determining a rotational speed representing current operating conditions, generating a command to initiate a ratio change in the automatic transmission, and determining a dynamic pressure for the automatic transmission during the ratio change based on the requested powertrain output and the rotational speed. The requested powertrain output may be a wheel torque determined in part by accelerator pedal position. A performance adder based on requested wheel torque may be provided to further enhance operation.
摘要翻译： 用于控制包括自动变速器的动力系统的系统和方法包括确定表示所请求的动力系输出的值，确定表示当前操作条件的转速，产生启动自动变速器中的比率变化的命令，以及确定用于 根据所要求的动力传动系统输出和转速，在变速比期间自动变速器。 所要求的动力系输出可以是部分由加速器踏板位置确定的车轮扭矩。 可以提供基于请求的车轮转矩的性能加法器以进一步增强操作。
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