公开(公告)号：US06434466B1

公开(公告)日：2002-08-13

申请号：US09306307

申请日：1999-05-06

申请人： Jerry Dean Robichaux ,  Timothy Joseph Clark ,  Tobias John Pallett

发明人： Jerry Dean Robichaux ,  Timothy Joseph Clark ,  Tobias John Pallett

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。

公开(公告)号：US06425373B1

公开(公告)日：2002-07-30

申请号：US09366936

申请日：1999-08-04

申请人： Jerry Dean Robichaux ,  Gopichandra Sumilla ,  Tobias John Pallett

发明人： Jerry Dean Robichaux ,  Gopichandra Sumilla ,  Tobias John Pallett

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。

公开(公告)号：US06401026B2

公开(公告)日：2002-06-04

申请号：US09891488

申请日：2001-06-25

申请人： Jerry Dean Robichaux ,  Tobias John Pallett

发明人： Jerry Dean Robichaux ,  Tobias John Pallett

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。

公开(公告)号：US06363316B1

公开(公告)日：2002-03-26

申请号：US09642958

申请日：2000-08-21

申请人： Ihab S. Soliman ,  Jerry Dean Robichaux ,  Tobias John Pallett

发明人： Ihab S. Soliman ,  Jerry Dean Robichaux ,  Tobias John Pallett

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。

公开(公告)号：US06246951B1

公开(公告)日：2001-06-12

申请号：US09306332

申请日：1999-05-06

申请人： Jerry Dean Robichaux ,  Tobias John Pallett

发明人： Jerry Dean Robichaux ,  Tobias John Pallett

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。

公开(公告)号：US6119063A

公开(公告)日：2000-09-12

申请号：US307449

申请日：1999-05-10

申请人： Bradley John Hieb ,  Jerry Dean Robichaux ,  Tobias John Pallett

发明人： Bradley John Hieb ,  Jerry Dean Robichaux ,  Tobias John Pallett

IPC分类号： F02D11/10 ,  F02D31/00 ,  F02D41/08 ,  F02D41/14 ,  F02D41/16

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。

公开(公告)号：US06279531B1

公开(公告)日：2001-08-28

申请号：US09370234

申请日：1999-08-09

申请人： Jerry Dean Robichaux ,  Tobias John Pallett

发明人： Jerry Dean Robichaux ,  Tobias John Pallett

IPC分类号： F02B4100

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 system and method for controlling an engine include 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, where the third intermediate torque represents accessory load or a frictional torque loss which varies with temperature.

摘要翻译： 用于控制发动机的系统和方法包括确定期望的发动机制动转矩并且基于当前的发动机操作条件来修改期望的发动机制动转矩，以在确定控制参数之前确定所要求的发动机制动转矩，所述控制参数包括气流和 燃料量，以实现所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，以确定所要求的发动机制动转矩，其中第三中间转矩表示附件负载或随温度变化的摩擦转矩损失 。

公开(公告)号：US06220987B1

公开(公告)日：2001-04-24

申请号：US09320012

申请日：1999-05-26

申请人： Jerry Dean Robichaux ,  Tobias John Pallett ,  Gary Bruce Webster

发明人： Jerry Dean Robichaux ,  Tobias John Pallett ,  Gary Bruce Webster

IPC分类号： F16H5914

CPC分类号： F16H61/0213 ,  F16H59/18 ,  F16H59/44 ,  F16H59/48 ,  F16H59/62 ,  F16H59/64 ,  F16H59/72 ,  Y10T477/65 ,  Y10T477/679

摘要： A system and method for controlling a vehicular powertrain including an internal combustion engine, an automatic transmission having a plurality of selectable gear ratios, and a controller in communication with the internal combustion engine, the transmission, and an accelerator pedal, include determining a driver requested wheel torque based on position of the accelerator pedal, and determining a vehicle speed ratio changing threshold based on the driver requested wheel torque. In one embodiment, the system and method determine a value indicative of current barometric pressure, determine a current gear ratio, and modify the driver requested wheel torque based on the current barometric pressure and the current gear ratio to determine a compensated wheel torque. The compensated wheel torque is used to determining the ratio changing threshold. Offset values are included to adjust for barometric pressure variation, transmission oil temperature, and to prevent gear hunting or excessive ratio changing.

摘要翻译： 一种用于控制包括内燃机，具有多个可选齿轮比的自动变速器和与内燃机，变速器和加速踏板连通的控制器的车辆动力总成的系统和方法，包括确定所请求的驾驶员 基于加速器踏板的位置的车轮转矩，以及基于驾驶员请求的车轮转矩来确定车辆速比变化阈值。 在一个实施例中，系统和方法确定指示当前大气压力的值，确定当前齿轮比，并且基于当前大气压力和当前齿轮比来修改驾驶员请求的车轮转矩，以确定补偿的车轮扭矩。 补偿车轮转矩用于确定比率变化阈值。 包括偏移值以调整气压变化，变速箱油温度，并防止齿轮摆动或过大的比率变化。

公开(公告)号：US08682566B2

公开(公告)日：2014-03-25

申请号：US13741161

申请日：2013-01-14

申请人： Tobias John Pallett ,  Eric Matthew Storhok ,  Gopichandra Surnilla

发明人： Tobias John Pallett ,  Eric Matthew Storhok ,  Gopichandra Surnilla

IPC分类号： B60T7/12

CPC分类号： F02D41/04 ,  F02D41/0007 ,  F02D41/021 ,  F02D41/16 ,  F02D41/30 ,  F02D41/405 ,  F02D2250/22 ,  Y02T10/144 ,  Y02T10/44

摘要： Various methods are described for controlling engine operation for an engine having a turbocharger and direction injection. One example method includes performing at least a first and second injection during a cylinder cycle, the first injection generating a lean combustion and the second injection injected after combustion such that it exits the cylinder unburned into the exhaust upstream of a turbine of the turbocharger; and adjusting at least the first injection based on engine speed, where the at least first and second injection are performed responsive to turbocharger speed.

摘要翻译： 描述了用于控制具有涡轮增压器和方向注射的发动机的发动机操作的各种方法。 一个示例性方法包括在气缸循环期间执行至少第一和第二喷射，第一喷射产生稀燃燃烧，并且在燃烧之后喷射的第二喷射使得其离开未燃烧到涡轮增压器的涡轮上游的排气口的气缸; 以及基于发动机速度至少调节所述第一喷射，其中响应于涡轮增压器速度执行所述至少第一和第二喷射。

公开(公告)号：US20120322614A1

公开(公告)日：2012-12-20

申请号：US13595769

申请日：2012-08-27

申请人： Ralph Wayne Cunningham ,  Michael Howard Shelby ,  Tobias John Pallett

发明人： Ralph Wayne Cunningham ,  Michael Howard Shelby ,  Tobias John Pallett

IPC分类号： B60W10/06

CPC分类号： F02D41/0002 ,  F02D37/02 ,  F02D41/0007 ,  F02D41/023 ,  F02D41/1497 ,  F02D2400/12 ,  Y02T10/144 ,  Y02T10/42 ,  Y10T477/6333

摘要： Various systems and methods are described for controlling combustion stability in an engine driving a transmission. One example method comprises limiting airflow to the engine in response to a spark timing retarded beyond a spark retard threshold, the limiting airflow to the engine reducing engine torque output and compensating for the reduction in engine torque output by adjusting a transmission operating parameter.

摘要翻译： 描述了用于控制驱动变速器的发动机中的燃烧稳定性的各种系统和方法。 一个示例性方法包括响应于延迟超过火花延迟阈值的火花正时限制气流到发动机，限制到发动机的气流减少发动机扭矩输出，并通过调节变速器运行参数来补偿发动机扭矩输出的减小。