公开(公告)号：US08235676B2

公开(公告)日：2012-08-07

申请号：US12067711

申请日：2006-09-21

Applicant: Brian S. R. Armstrong ,  Qinghui Yuan

Inventor： Brian S. R. Armstrong ,  Qinghui Yuan

IPC: F04D29/00

CPC classification number: F04C14/065 ,  F03C2/08 ,  F04C2/103 ,  F04C14/10 ,  F04C14/24 ,  Y10T137/0318

Abstract: Methods for controlling the net-displacement of a rotary fluid pressure device are disclosed. One of the net-displacement control methods (47) includes obtaining a desired input parameter (23) and a relative position (21) of a first member (43) and a second member (35) of a fluid displacement mechanism. A determination of a first and second output value is then made for each of a plurality of volume chambers (45) when the volume chambers (45) are supplied with fluid at fluid inlet and fluid outlet conditions, respectively. A total output value is then computed for each of a plurality of control valve configurations (63) and compared to the desired input parameter (23). The control valve configuration (63) with the total output value most similar to the desired input parameter (23) is then selected. A plurality of control valves (15) are then actuated in accordance with the selected control valve configuration (63).

Abstract translation: 公开了一种用于控制旋转流体压力装置的净位移的方法。 净位移控制方法（47）中的一个包括获得流体移动机构的第一构件（43）和第二构件（35）的期望输入参数（23）和相对位置（21）。 然后，当分别在流体入口和流体出口条件下向容积室（45）供应流体时，对多个容积室（45）中的每一个进行第一和第二输出值的确定。 然后针对多个控制阀配置（63）中的每一个计算总输出值，并与期望的输入参数（23）进行比较。 然后选择总输出值与期望输入参数（23）最相似的控制阀配置（63）。 然后根据所选择的控制阀构造（63）致动多个控制阀（15）。

公开(公告)号：US07518523B2

公开(公告)日：2009-04-14

申请号：US11650267

申请日：2007-01-05

Applicant: Qinghui Yuan ,  Christy W. Schottler ,  Jae Y. Lew

Inventor： Qinghui Yuan ,  Christy W. Schottler ,  Jae Y. Lew

IPC: G08B21/00

CPC classification number: F15B9/09 ,  F15B11/08 ,  F15B13/0402 ,  F15B21/087 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/6656

Abstract: A method for estimating actuator position includes the steps of receiving fluid pressure data signals from a plurality of fluid pressure sensors (31), receiving spool position signals from at least one spool position sensor (33), and receiving actuator position data signals from at least one actuator position sensor (35). Corrected flow rates to and from an actuator (21) are determined with each corrected flow rate being based on fluid pressure data signals, the spool position signals, and an error-correction factor, wherein the error-correction factor is a function of the fluid pressure data signals and the spool position signals. An estimated actuator position is determined wherein the estimated position includes a kinematic component and a dynamic component. Adaptive gain factors are applied to calibrate the estimated actuator position to the actuator position data signals from the actuator position sensor.

Abstract translation: 一种用于估计致动器位置的方法包括以下步骤：从多个流体压力传感器（31）接收流体压力数据信号，从至少一个阀芯位置传感器（33）接收阀芯位置信号，以及从至少接收致动器位置数据信号 一个致动器位置传感器（35）。 通过每个校正流量基于流体压力数据信号，阀芯位置信号和误差校正因子来确定进给和来自致动器（21）的校正流量，其中误差校正因子是流体的函数 压力数据信号和阀芯位置信号。 确定估计的致动器位置，其中估计位置包括运动分量和动态分量。 应用自适应增益因子来校准来自致动器位置传感器的致动器位置数据信号的估计致动器位置。

公开(公告)号：US07337053B2

公开(公告)日：2008-02-26

申请号：US11702882

申请日：2007-02-06

Applicant: Damrongrit Piyabongkarn ,  John A. Grogg ,  Qinghui Yuan ,  Jae Y. Lew

Inventor： Damrongrit Piyabongkarn ,  John A. Grogg ,  Qinghui Yuan ,  Jae Y. Lew

IPC: B60T8/52

CPC classification number: B60K28/165 ,  B60W10/119 ,  B60W10/16 ,  B60W30/045 ,  B60W2520/10 ,  B60W2520/14 ,  B60W2520/28

Abstract: A control system for a vehicle having first and second axles is provided that includes a coupling apparatus adapted to distribute torque between the first and second axles and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the coupling apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the coupling apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate.

Abstract translation: 提供一种具有第一和第二轴的车辆的控制系统，其包括适于在第一和第二轴之间分配扭矩的联接装置和用于控制差速装置从车辆启动到预定车辆速度的操作的牵引控制器。 牵引控制器被配置为根据指示低牵引操作条件的至少一个车辆操作参数在第一操作状态下接合联接装置，并且在低牵引操作期间进一步控制联接装置在第二车辆操作状态下的接合 根据实际车辆横摆角速度与预定目标车辆横摆角速度之间的差异来判断状态。

公开(公告)号：US20070192011A1

公开(公告)日：2007-08-16

申请号：US11702882

申请日：2007-02-06

Applicant: Damrongrit Piyabongkarn ,  John A. Grogg ,  Qinghui Yuan ,  Jae Y. Lew

Inventor： Damrongrit Piyabongkarn ,  John A. Grogg ,  Qinghui Yuan ,  Jae Y. Lew

IPC: G06G7/76 ,  G06F19/00

CPC classification number: B60K28/165 ,  B60W10/119 ,  B60W10/16 ,  B60W30/045 ,  B60W2520/10 ,  B60W2520/14 ,  B60W2520/28

Abstract: A control system for a vehicle having first and second axles is provided that includes a coupling apparatus adapted to distribute torque between the first and second axles and a traction controller for controlling operation of the differential apparatus from vehicle launch up to a predetermined vehicle speed. The traction controller is configured to engage the coupling apparatus in a first operating state according to at least one vehicle operating parameter indicative of a low traction operating condition and to further control engagement of the coupling apparatus in a second vehicle operating state during the low traction operating condition according to a difference between an actual vehicle yaw rate and a predetermined target vehicle yaw rate.

Abstract translation: 提供一种具有第一和第二轴的车辆的控制系统，其包括适于在第一和第二轴之间分配扭矩的联接装置和用于控制差速装置从车辆启动到预定车辆速度的操作的牵引控制器。 牵引控制器被配置为根据指示低牵引操作条件的至少一个车辆操作参数在第一操作状态下接合联接装置，并且在低牵引操作期间进一步控制联接装置在第二车辆操作状态下的接合 根据实际车辆横摆角速度与预定目标车辆横摆角速度之间的差异来判断状态。