Method to sense speed, direction and acceleration for a rotating shaft
using a rotor with unequal tooth spacing
    2.
    发明授权
    Method to sense speed, direction and acceleration for a rotating shaft using a rotor with unequal tooth spacing 失效
    使用不等齿距的转子感测旋转轴的速度,方向和加速度的方法

    公开(公告)号:US5977764A

    公开(公告)日:1999-11-02

    申请号:US985650

    申请日:1997-12-05

    摘要: A method is provided for determining the speed and direction of a rotating shaft. A rotor is connected to the shaft. The rotor includes three circumferentially spaced teeth, the first of said teeth having a first center spacing, the second of said teeth having a second center spacing different than the center spacing of the first tooth, and the third of said teeth having a third center spacing different than the center spacing of the second tooth. The centers of each of said teeth is sensed and a signal is produced in response thereto. A first time period to reach the center of the first tooth, a second time period to reach the center of the second tooth and a third time period to reach the center of the third tooth are determined, then the speed and direction of rotation of the shaft are established.

    摘要翻译: 提供了一种用于确定旋转轴的速度和方向的方法。 转子连接到轴上。 转子包括三个周向间隔开的齿,所述齿中的第一个具有第一中心间隔,所述齿中的第二个具有不同于第一齿的中心间隔的第二中心间隔,并且所述齿中的第三个具有第三中心间隔 不同于第二颗牙齿的中心间距。 检测每个所述齿的中心,并响应于此产生信号。 确定到达第一齿的中心的第一时间段,到达第二齿的中心的第二时间段和到达第三个齿的中心的第三时间段,然后确定旋转的速度和旋转方向 轴已建立。

    Method of controlling engine torque during launch from neutral idle operation
    5.
    发明授权
    Method of controlling engine torque during launch from neutral idle operation 有权
    从空载怠速运转中控制发动机扭矩的方法

    公开(公告)号:US06440041B1

    公开(公告)日:2002-08-27

    申请号:US09779816

    申请日:2001-02-08

    IPC分类号: B60K4104

    摘要: A method of controlling engine torque in a motor vehicle having an internal combustion engine and multi-ratio transmission when launched from a neutral idle rest condition. At neutral idle, the transmission is controlled such that the input and output members are decoupled. During vehicle launch, two different strategies may be employed to control engine torque. One preferred method is to determine an engine brake torque limit as a function of time. Another preferred method to determine the engine brake torque limit is to estimate the torque capacity of the forward clutch at any given time using a mathematical model and a calibrated offset of turbine torque. Irrespective of the particular method used, the determined engine brake torque limit is compared to the corresponding engine torque amount that is requested by the vehicle operator. As a result, the actual engine torque output is optimized at all times to provide approximately the maximum amount of requested torque without exceeding the capacity of the transmission's forward clutch.

    摘要翻译: 一种当从中立空转静止状态发射时,具有内燃机和多比率变速器的机动车辆中的发动机转矩的控制方法。 在中性空闲时,传输被控制使得输入和输出构件被解耦。 在车辆发射期间,可以采用两种不同的策略来控制发动机转矩。 一种优选的方法是确定作为时间的函数的发动机制动转矩极限。 确定发动机制动转矩极限的另一个优选方法是使用数学模型和涡轮扭矩的校准偏移来估计在任何给定时间的前进离合器的扭矩容量。 不考虑使用的特定方法,将确定的发动机制动转矩极限与车辆操作者要求的对应的发动机转矩量进行比较。 因此,实际的发动机扭矩输出始终被优化,以提供大约最大量的要求扭矩,而不超过变速器前进离合器的容量。

    Control strategy and method for independently controlling friction element actuators for an automatic transmission
    6.
    发明授权
    Control strategy and method for independently controlling friction element actuators for an automatic transmission 有权
    用于独立控制自动变速器摩擦元件执行器的控制策略和方法

    公开(公告)号:US06385520B1

    公开(公告)日:2002-05-07

    申请号:US09636729

    申请日:2000-08-10

    IPC分类号: G06F1700

    摘要: A control strategy and method for controlling application and release of friction elements in an automatic transmission to effect gear ratio changes as one friction element is release and another friction element is applied during ratio changes. The transmission has an electronic controller and multiple solenoid regulator valves hydraulically coupled directly to pressure-operated friction elements. Powertrain variables are obtained and processed to calculate gear ratio control parameters derived from desired line pressure for a pressure control valve circuit that communicates with the friction elements. The desired gear ratio is determined for each given set of powertrain variables. Upshifts and downshifts are obtained by releasing one friction element in synchronism with an application of the other friction element, whereby a direct friction element to friction element torque transition is achieved with minimal inertia torque disturbances.

    摘要翻译: 一种用于控制自动变速器中的摩擦元件的应用和释放的控制策略和方法,以在一个摩擦元件释放时施加齿轮比变化,并且在比率变化期间施加另一摩擦元件。 变速器具有电子控制器和多个电磁调节阀,其液压耦合到压力操作的摩擦元件。 获得并处理动力系变量,以计算从与摩擦元件连通的压力控制阀回路的期望管路压力导出的传动比控制参数。 为每组给定的动力系变量确定所需的传动比。 通过与施加另一个摩擦元件同步地释放一个摩擦元件来获得升档和降档,由此以最小的惯性转矩扰动实现摩擦元件扭矩转换的直接摩擦元件。

    Method of Aligning a Transmission Synchronizer
    8.
    发明申请
    Method of Aligning a Transmission Synchronizer 有权
    对准传输同步器的方法

    公开(公告)号:US20110238273A1

    公开(公告)日:2011-09-29

    申请号:US12748516

    申请日:2010-03-29

    IPC分类号: G06F19/00

    CPC分类号: F16H61/2807 F16H2061/047

    摘要: The present disclosure relates to methods of detecting misalignment in a transmission synchronizer and methods of alignment. Detection of misalignment is accomplished via monitoring a performance characteristic of a power source configured to provide an engagement force to the synchronizer. Where misalignment is detected a predetermined torque is applied to the input or output side of the synchronizer to rotationally align synchronizer components.

    摘要翻译: 本公开涉及检测传输同步器中的未对准的方法和对准方法。 通过监视被配置为向同步器提供接合力的电源的性能特性来实现未对准的检测。 在检测到未对准的情况下,将预定的扭矩施加到同步器的输入或输出侧以旋转地对准同步器部件。