Model-based transmission upshift control with engine torque management
    1.
    发明授权
    Model-based transmission upshift control with engine torque management 有权
    基于型号的变速箱升档控制与发动机转矩管理

    公开(公告)号:US06364811B1

    公开(公告)日:2002-04-02

    申请号:US09598283

    申请日:2000-06-22

    IPC分类号: F16H6104

    摘要: An improved control for an automatic transmission upshift, wherein the engine output torque and on-coming clutch pressure are coordinated during the shift based on an inverse dynamic model of the transmission to achieve a desired output torque trajectory. The desired output torque trajectory is influenced by operator demand, and an initial value of the desired output torque trajectory is used along with the engine output torque to develop an input acceleration trajectory. The inverse dynamic model of the transmission is used (1) to determine an engine torque command that will achieve both the input acceleration trajectory and the desired output torque trajectory, and (2) to determine a feed-forward pressure command for the on-coming clutch that will produce the input acceleration trajectory, given the engine torque command. The desired output torque trajectory and the engine output torque are used to determine the expected input speed, and a feed-back control term based on the deviation of the measured input speed from the expected input speed is used to adjust the on-coming clutch pressure command to account for model errors. Finally, the closed-loop feedback error is used to enable adaptive correction of the feed-forward control so that the feed-forward clutch pressure more nearly produces the commanded input shaft acceleration.

    摘要翻译: 用于自动变速器升档的改进的控制,其中基于变速器的逆动力学模型,在换档期间协调发动机输出扭矩和接通离合器压力,以实现期望的输出转矩轨迹。 期望的输出转矩轨迹受操作者需求的影响,并且使用期望的输出转矩轨迹的初始值以及发动机输出转矩来产生输入加速轨迹。 使用变速器的逆动力学模型(1)来确定将实现输入加速度轨迹和期望输出转矩轨迹的发动机扭矩指令,以及(2)确定用于接下来的前馈压力指令 给定发动机扭矩指令的离合器将产生输入加速度轨迹。 使用期望的输出转矩轨迹和发动机输出转矩来确定预期的输入速度,并且使用基于测量的输入速度与预期输入速度的偏差的反馈控制项来调整接通离合器压力 命令来解释模型错误。 最后,使用闭环反馈误差来实现前馈控制的自适应校正,使得前馈离合器压力更接近地产生指令的输入轴加速度。

    Engine limit control for closed-throttle transmission shifting
    2.
    发明授权
    Engine limit control for closed-throttle transmission shifting 有权
    发动机限位控制用于闭路节气门传动换档

    公开(公告)号:US06478713B1

    公开(公告)日:2002-11-12

    申请号:US09692809

    申请日:2000-10-23

    IPC分类号: B60K4104

    摘要: An improved engine and transmission control method for coordinated control of closed-throttle transmission shifting, wherein the transmission control provides engine speed and torque rate limits to the engine control based on the shift parameters. The speed and/or torque rate limits come into play if the driver suddenly increases the engine throttle setting. Additionally, in driver requested garage shifts, initiation of the shift is prevented until the engine speed is within the speed limit. Preferably, the engine speed limit is set a calibrated amount above the computed input synchronization speed (SYNC). Alternately, the engine speed limit may be set to a value that limits the energy dissipated in the on-coming clutch to a predetermined value. With either approach, the engine speed and torque limits modify the engine control only to the extent necessary to preserve high shift quality while limiting the on-coming clutch energy dissipation to a safe level.

    摘要翻译: 一种改进的发动机和变速器控制方法,用于协调控制闭路节气门变速器,其中变速器控制基于换档参数为发动机控制提供发动机转速和转矩限制。 如果驾驶员突然增加发动机节气门设定,速度和/或转矩限制就会发挥作用。 另外,在驾驶员要求的车库班次中,防止发生变速,直到发动机速度在速度限制内。 优选地,将发动机速度限制设置为高于所计算的输入同步速度(SYNC)的校准量。 或者,发动机速度限制可以被设定为将在前进离合器中消耗的能量限制到预定值的值。 采用任何一种方法,发动机转速和转矩限制只能在必要的范围内修改发动机控制,以保持高变速质量,同时将即将到来的离合器能量消耗限制在一个安全的水平。

    Model-based engine torque control for power-on downshifting in an automatic transmission
    4.
    发明授权
    Model-based engine torque control for power-on downshifting in an automatic transmission 有权
    基于型号的发动机转矩控制,用于自动变速箱中的上电降档

    公开(公告)号:US06319170B1

    公开(公告)日:2001-11-20

    申请号:US09574928

    申请日:2000-05-19

    IPC分类号: B60R4104

    摘要: An improved engine torque control for an automatic transmission power-on downshift, wherein a dynamic model of the transmission is used to schedule both shift progression and engine torque reduction based on a desired trajectory of the transmission input shaft during the shift and the driver torque demand. The shift is initiated with the off-going clutch by using the dynamic model to conform the input speed to the desired trajectory, and the torque reduction is initiated based on an estimate of the time to synchronization relative to an expected control delay so that the torque reduction occurs when the input speed reaches synchronization. An appropriate torque reduction amount is calibrated for a specified driver torque demand, and in operation, the amount of torque reduction for a given shift is determined based on the current driver torque demand and a detected deviation of the desired trajectory from a nominal trajectory corresponding to the specified driver torque demand. Aberrant conditions, including failure of the input speed to reach synchronization and input speed flaring are detected and used to modify the engine torque control so that the shift is completed in a timely manner. Using the dynamic model to scheduling the torque control achieves more consistent shift feel and improved adaptability to different powertrain and vehicle-type configurations, and reduces the number of calibrated parameters requiring adaptive correction.

    摘要翻译: 用于自动变速器开机降档的改进的发动机转矩控制,其中变速器的动态模型用于基于变速器期间变速器输入轴的期望轨迹和驾驶员扭矩需求来调度转速进程和发动机转矩降低 。 通过使用动态模型使离合器离合器开始偏移以使输入速度符合期望的轨迹,并且基于相对于期望的控制延迟的同步时间的估计来启动转矩降低,使得转矩 当输入速度达到同步时发生减少。 对于指定的驾驶员扭矩需求来校准适当的扭矩减小量,并且在操作中,基于当前驾驶员扭矩需求和所期望的轨迹与所对应的标称轨迹的检测偏差来确定给定换档的扭矩减小量 指定的司机扭矩需求。 检测到异常情况,包括输入速度达不到同步和输入速度扩张的失败,并用于修改发动机转矩控制,以便及时完成班次。 使用动态模型来调度转矩控制可实现更一致的换档感觉和改善对不同动力系和车型配置的适应性,并减少需要自适应校正的校准参数数量。

    Vehicle platform-portable controller
    6.
    发明授权
    Vehicle platform-portable controller 有权
    车载平台便携式控制器

    公开(公告)号:US06360145B1

    公开(公告)日:2002-03-19

    申请号:US09571900

    申请日:2000-05-16

    IPC分类号: G06F700

    CPC分类号: G01M17/007

    摘要: A method of transferring information between a vehicle controller and a diagnostic tool including the steps of providing communications hardware for the vehicle controller compatible with the communications hardware of the diagnostic tool, providing a virtual input/output system to interface with the communication hardware of the vehicle controller, providing application layer software that is hardware and communication protocol independent to communicate with the virtual input output system, storing the data in memory of the vehicle controller, building a data request table in the memory of the vehicle controller based on a communications protocol and data transfer rate of the diagnostic tool, the data request table including the data, data size, and transfer rates, requesting the data from the memory of the vehicle controller by the diagnostic tool, and transmitting the data from the controller to the diagnostic tool in response to the request by the device.

    摘要翻译: 一种在车辆控制器和诊断工具之间传递信息的方法,包括以下步骤:为与诊断工具的通信硬件兼容的车辆控制器提供通信硬件,提供虚拟输入/输出系统以与车辆的通信硬件接口 控制器,提供独立于硬件和通信协议的应用层软件,以与虚拟输入输出系统通信,将数据存储在车辆控制器的存储器中,基于通信协议在车辆控制器的存储器中建立数据请求表,以及 诊断工具的数据传输速率,包括数据,数据大小和传送速率的数据请求表,通过诊断工具请求来自车辆控制器的存储器的数据,并将数据从控制器传送到诊断工具 响应设备的请求。

    Fuzzy logic shift scheduling for automatic transmissions
    8.
    发明授权
    Fuzzy logic shift scheduling for automatic transmissions 失效
    自动变速器的模糊逻辑换档调度

    公开(公告)号:US5913916A

    公开(公告)日:1999-06-22

    申请号:US945786

    申请日:1992-09-16

    摘要: Transmission output speed and engine throttle position are inputs to a control which determines acceleration and input speed. Fuzzy logic has acceleration and throttle membership functions and a set of upshift and downshift values, and rules for weighting each of the values in accordance with the degree of membership of acceleration and throttle position in certain of the functions to determine a downshift point and an upshift point. The input speed is compared to the shift points to decide whether to order a shift. Two or more sets of shift values are stored and are selectable for different performance options. The shift values are stated in terms of a percentage of engine governed speed to allow different engines to be coupled to the transmission. Lockup clutch apply and release logic controls converter lockup to maintain converter mode when significant torque multiplication is occurring and generally to maintain lockup mode when the transmission range is at or above the lowest allowable lockup range.

    摘要翻译: 变速器输出速度和发动机节气门位置是确定加速度和输入速度的控制器的输入。 模糊逻辑具有加速度和节气门隶属函数以及一组升档和降档值,以及用于根据某些功能中的加速度和节气门位置的隶属度来对每个值进行加权的规则,以确定降档点和升档 点。 将输入速度与换档点进行比较,以决定是否对换档进行排序。 存储两组或更多组移位值,并针对不同的性能选项进行选择。 换档值以发动机控制速度的百分比表示,以允许不同的发动机耦合到变速器。 锁止离合器施加和释放逻辑控制转换器锁定,以在发生显着的扭矩倍增时维持转换器模式,并且当变速范围在最低允许锁定范围之上时通常保持锁定模式。

    Vehicle communication link auto detection
    10.
    发明授权
    Vehicle communication link auto detection 有权
    车辆通信链路自动检测

    公开(公告)号:US06334081B1

    公开(公告)日:2001-12-25

    申请号:US09578025

    申请日:2000-05-24

    IPC分类号: G06F1700

    摘要: A vehicle controller including communication hardware for receiving data transmissions from an automotive communication network, control software to control an automotive system, the control software requiring process data from at least one of a plurality of controllers linked to the automotive communication network to control the automotive system, the plurality of controllers broadcasting the process data over the automotive communication network, calibration software containing constants for the operation of the control software, communication software used in conjunction with the communication hardware for polling the automotive communication network for the required process data and identifying a source controller of the required process data, and memory in the vehicle controller for storing the source ID of the source controller, wherein upon identification of the source controller of the required process data, the communication software will read the required process data from the source controller.

    摘要翻译: 一种车辆控制器,包括用于从汽车通信网络接收数据传输的通信硬件,用于控制汽车系统的控制软件,所述控制软件需要来自与所述汽车通信网络相关联的多个控制器中的至少一个的过程数据以控制所述汽车系统 ,多个控制器通过汽车通信网络广播过程数据,包含用于控制软件的操作的常数的校准软件,与通信硬件结合使用的用于轮询汽车通信网络以获得所需过程数据的通信软件,以及识别 所需过程数据的源控制器和用于存储源控制器的源ID的车辆控制器中的存储器,其中在识别所需过程数据的源控制器时,通信软件将从t读取所需的过程数据 他来源控制器。