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公开(公告)号：US07264080B2
公开(公告)日：2007-09-04
申请号：US11092641
申请日：2005-03-29
CPC分类号： B62D5/0835
摘要： The invention provides a method for controlling valve stiffness in a power steering system. The method includes the step of engaging a pinion and a spool shaft with respect to one another for turning at least two wheels of a vehicle in response to rotation of a steering wheel from an on-center orientation. The method also includes the step of variably assisting movement of the pinion with a hydraulic power steering device having a valve movable between a closed configuration and an open configuration. The method also includes the step of moving the valve from the open configuration to the closed configuration in response to rotation of the spool shaft relative to the pinion from an on-center orientation to assist the pinion in rotation for turning the at least two wheels. The method also includes the step of first disposing a torsion rod having a first stiffness between the pinion and spool shaft to resist rotation of the spool shaft relative to the pinion from the on-center orientation and resist movement of the valve from the open configuration to the closed configuration. The method also includes the step of second disposing a magnetic coupling having a variable second stiffness in parallel with the torsion rod to resist rotation of the spool shaft relative to the pinion from the on-center orientation and resist movement of the valve from the open configuration to the closed configuration. The first stiffness and the variable second stiffness cooperate to define an overall valve stiffness. The method also includes the step of varying the variable second stiffness generated by the magnetic coupling with an electric coil to vary the overall valve stiffness. The method also includes the step of maximizing the variable second stiffness generated by the magnetic coupling when the spool shaft and the pinion are on-center with respect to one another.
摘要翻译： 本发明提供了一种用于控制动力转向系统中的阀刚度的方法。 该方法包括相对于彼此接合小齿轮和卷轴的步骤，以响应于方向盘从中心方位的转动而转动车辆的至少两个车轮。 该方法还包括可变地辅助小齿轮与液压动力转向装置的运动的步骤，该液压动力转向装置具有可在关闭构型和打开构型之间移动的阀。 该方法还包括将阀从打开构型移动到闭合构型的步骤，以响应卷筒轴相对于小齿轮的转动而从中心方向移动，以帮助小齿轮旋转以转动至少两个轮。 该方法还包括以下步骤：首先在小齿轮和卷轴之间设置具有第一刚度的扭杆，以阻止卷筒轴相对于小齿轮从中心取向的旋转，并阻止阀从打开构型移动到 关闭配置。 该方法还包括以下步骤：第二次布置具有与扭杆平行的可变的第二刚度的磁耦合，以抵抗卷轴从相对于小齿轮的中心取向的转动，并阻止阀从打开构型移动 到关闭配置。 第一刚度和可变第二刚度协作以确定整体阀刚度。 该方法还包括通过电线圈改变由磁耦合产生的可变第二刚度以改变整体阀刚度的步骤。 该方法还包括当卷轴和小齿轮相对于彼此在中心时最大化由磁耦合产生的可变第二刚度的步骤。
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公开(公告)号：US07434654B2
公开(公告)日：2008-10-14
申请号：US11846713
申请日：2007-08-29
CPC分类号： B62D5/0835
摘要： A power steering system for a vehicle includes a hydraulic system for controlling resistance of a steering wheel. A valve of the hydraulic system is connected to a coil which varies positioning of the valve. A method for controlling the resistance of the steering wheel includes turning the steerable wheels of the vehicle in response to rotation of the steering wheel. The angle of the steering wheel and the speed of the vehicle are sensed and inputted into a controller. A lateral acceleration is determined based on the sensed signals by the controller. A recommended current rate of the coil is determined based on the lateral acceleration. An adjustment to the recommended current rate of the coil is determined based upon the speed of the vehicle. The recommended current rate is also modified based upon the adjustment. The modified current rate of the coil is then applied to the coil to vary the stiffness of the valve, which in turn varies the resistance to turning the steerable wheels of the vehicle.
摘要翻译： 用于车辆的动力转向系统包括用于控制方向盘的阻力的液压系统。 液压系统的阀连接到线圈上，该线圈改变阀的定位。 用于控制方向盘的阻力的方法包括响应于方向盘的旋转来转动车辆的可转向轮。 方向盘的角度和车辆的速度被感测并输入到控制器中。 基于由控制器感测到的信号确定横向加速度。 基于横向加速度确定线圈的推荐电流速率。 基于车辆的速度来确定线圈的推荐电流速率的调整。 推荐的当前速率也会根据调整进行修改。 然后将线圈的改进的电流速率施加到线圈以改变阀的刚度，这又改变了转向车辆的可转向车轮的阻力。
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公开(公告)号：US06965820B2
公开(公告)日：2005-11-15
申请号：US09954886
申请日：2001-09-18
申请人： Sanket S. Amberkar , Ashok Chandy , Kathryn L. Pattok , Mark P. Colosky , William Chin-Woei Lin , Weiwen Deng , Yuen-Kwok Chin
发明人： Sanket S. Amberkar , Ashok Chandy , Kathryn L. Pattok , Mark P. Colosky , William Chin-Woei Lin , Weiwen Deng , Yuen-Kwok Chin
CPC分类号： B62D5/0472 , B62D6/04 , Y10T477/10
摘要： A controller (32) for a vehicular system (10) that includes a hand-wheel (16) and an electric motor (34) includes a torque-assist function (56) responsive to a signal representing the torque applied to the hand-wheel (16) for providing a torque-assist command to the motor (34), and a steering-pull compensator (52) responsive to a signal representing a valid ignition cycle for modifying the torque-assist command to the motor (34) by an offset corresponding to a detected steering-pull condition; where the method of control includes receiving the signal indicative of the torque applied to the hand-wheel (16), providing a torque-assist command to the motor (34) in response to the received torque signal, detecting an enabling signal related to the signal representing a valid ignition cycle, quantifying a steering-pull condition in response to the received and detected signals, and modifying the torque-assist command to the motor (34) by an offset corresponding to the quantified steering-pull condition.
摘要翻译： 一种用于包括手轮（16）和电动机（34）的车辆系统（10）的控制器（32）包括扭矩辅助功能（56），其响应于表示施加到手轮 （16），用于向所述电动机（34）提供转矩辅助指令;以及转向拉动补偿器（52），其响应于表示有效点火循环的信号，用于通过一个所述电动机（34）修正所述电动机（34）的转矩辅助指令 对应于检测到的转向拉条件的偏移; 其中所述控制方法包括接收指示施加到所述手轮（16）的转矩的信号，响应于所接收的转矩信号向所述电动机（34）提供转矩辅助指令，检测与所述手轮 信号，其表示有效的点火周期，响应于所接收和检测到的信号量化转向拉动状况，并且将对所述电动机（34）的转矩辅助指令修正与量化的转向拉动条件相对应的偏移。
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公开(公告)号：US06766230B1
公开(公告)日：2004-07-20
申请号：US10039634
申请日：2001-11-09
IPC分类号： G06F1900
CPC分类号： G05B23/0251 , B60G17/0185 , B60G2600/042 , B60G2600/08 , B60G2600/1873 , B60G2800/80 , B60G2800/85 , B60W50/00 , B60W50/0205 , B60W2050/0028 , B60W2050/0295 , G05B23/0278
摘要： A model-based Fault Detection and Isolation (FDI) system and method based on a hierarchical structure for monitoring overall vehicle system performance and diagnosing faults is disclosed. The FDI scheme uses the available sensors in a vehicle system and divides them into subsystems of smaller dimensions containing one or more modules that are related or interconnected. The same module may appear in a different subsystem, but the set of all subsystems does not have to contain all of the modules. For this structure, an FDI scheme comprising several detector units is created. Each detector unit receives information from the sensors and outputs a residual that is sent to a residual evaluation unit which processes the data and performs the residual evaluation for the selected subsystem. Finally, each subsystem outputs a decision that is sent to a supervisor unit performing the final diagnosis.
摘要翻译： 公开了一种基于模型的故障检测和隔离（FDI）系统和基于层次结构的方法，用于监控整个车辆系统性能和诊断故障。 FDI方案使用车辆系统中的可用传感器，并将其划分为较小尺寸的子系统，其中包含一个或多个相关或互连的模块。 相同的模块可能出现在不同的子系统中，但是所有子系统的集合不必包含所有模块。 对于该结构，创建包括若干检测器单元的FDI方案。 每个检测器单元从传感器接收信息并输出发送到剩余评估单元的残差，该剩余评估单元处理该数据并执行所选子系统的剩余评估。 最后，每个子系统输出发送给执行最终诊断的主管单元的决定。
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公开(公告)号：US07530422B2
公开(公告)日：2009-05-12
申请号：US11204706
申请日：2005-08-16
申请人： Farhad Bolourchi , Michael J. Augustine , Brian J. Magnus , Jon D. Demerly , Sanket S. Amberkar , Suat A. Ozsoylu , James Card , Karen Boswell
发明人： Farhad Bolourchi , Michael J. Augustine , Brian J. Magnus , Jon D. Demerly , Sanket S. Amberkar , Suat A. Ozsoylu , James Card , Karen Boswell
IPC分类号： B62D5/04
CPC分类号： B62D5/09 , B62D5/008 , B62D5/0463 , B62D5/0472 , B62D5/06
摘要： A steering system with reduced coupling between a position overlay unit and a torque overlay unit may include a remote valve assembly for controlling a hydraulic assist force or an electric motor for providing torque overlay and electric assist to a rack of a rack and pinion steering system. In one embodiment, the position overlay unit may provide the assist force and the torque overlay unit may provide a motor command signal to the motor of a differential positioned on a steering shaft. In another embodiment, the position overlay unit may provide the motor command signal and the torque overlay unit may provide the assist force. In either embodiment, the position overlay unit may include variable ratio gain that uses a position signal to output a variable ratio command.
摘要翻译： 具有位置覆盖单元和扭矩覆盖单元之间的减小的联接的转向系统可以包括用于控制液压辅助力的远程阀组件或用于向齿条和小齿轮转向系统的齿条提供扭矩覆盖和电辅助的电动机。 在一个实施例中，位置覆盖单元可以提供辅助力，并且扭矩覆盖单元可以向定位在转向轴上的差速器的马达提供马达命令信号。 在另一个实施例中，位置覆盖单元可以提供电动机命令信号，并且扭矩覆盖单元可以提供辅助力。 在任一实施例中，位置覆盖单元可以包括使用位置信号输出可变比率命令的可变比增益。
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6.发明申请Systems and methods for determining an absolute position of a motor in an active front steering system of a vehicle 失效用于确定车辆的主动前转向系统中的电动机的绝对位置的系统和方法公开(公告)号：US20070295895A1
公开(公告)日：2007-12-27
申请号：US11474756
申请日：2006-06-26
IPC分类号： G01D5/34
摘要： Systems and methods for determining an absolute position of a motor of an active front steering system of the vehicle are provided. In particular, the systems and methods accurately determine an absolute position of the motor upon startup of the active front steering system.
摘要翻译： 提供了用于确定车辆的主动前转向系统的电动机的绝对位置的系统和方法。 特别地，系统和方法在启动主动前转向系统时精确地确定电动机的绝对位置。
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7.发明授权Systems and methods for determining an absolute position of a motor in an active front steering system of a vehicle 失效用于确定车辆的主动前转向系统中的电动机的绝对位置的系统和方法公开(公告)号：US08100223B2
公开(公告)日：2012-01-24
申请号：US11474756
申请日：2006-06-26
IPC分类号： B62D5/04
摘要： Systems and methods for determining an absolute position of a motor of an active front steering system of the vehicle are provided. In particular, the systems and methods accurately determine an absolute position of the motor upon startup of the active front steering system.
摘要翻译： 提供了用于确定车辆的主动前转向系统的电动机的绝对位置的系统和方法。 特别地，系统和方法在启动主动前转向系统时精确地确定电动机的绝对位置。
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公开(公告)号：US06687585B1
公开(公告)日：2004-02-03
申请号：US10039636
申请日：2001-11-09
IPC分类号： G06F700
CPC分类号： G01M17/00 , B60G17/0185 , B60G17/0195 , B60G2600/042 , B60G2600/08 , B60G2600/084 , B60G2600/1873 , B60G2600/188 , B60G2600/189 , B60G2600/702 , B60G2800/802 , B60T8/885 , B60T17/22 , B60T2270/402 , B60W2050/021 , B62D5/0481 , B62D15/00
摘要： A model-based Fault Detection and Isolation (FDI) method and system for monitoring the overall performance in a vehicle system based on a hierarchical structure is disclosed. The FDI scheme uses the available sensors in a vehicle system and divides them into subsystems of smaller dimensions containing one or more modules that are related or interconnected. The same module may appear in a different subsystem, but the set of all subsystems does not have to contain all of the modules. For this structure, an FDI scheme comprising several detector units is created. Each detector unit receives information from the sensors and outputs a residual that is sent to a high-level detector unit which processes the data and performs the residual evaluation for the selected subsystem. Finally, each subsystem outputs a decision that is sent to a supervisor hazard detector performing the final diagnosis.
摘要翻译： 公开了一种基于模型的故障检测和隔离（FDI）方法和系统，用于基于层次结构监测车辆系统的整体性能。 FDI方案使用车辆系统中的可用传感器，并将其划分为较小尺寸的子系统，其中包含一个或多个相关或互连的模块。 相同的模块可能出现在不同的子系统中，但是所有子系统的集合不必包含所有模块。 对于该结构，创建包括若干检测器单元的FDI方案。 每个检测器单元从传感器接收信息并输出发送到高级检测器单元的残差，该单元处理该数据并执行所选子系统的残差评估。 最后，每个子系统输出发送给执行最终诊断的主管危险检测器的决定。
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公开(公告)号：US20080191854A1
公开(公告)日：2008-08-14
申请号：US11706018
申请日：2007-02-14
IPC分类号： B60Q1/00
CPC分类号： B60R21/0134 , B60N2/0276
摘要： A method for actuating a controlled device in response to a pre-crash condition of a vehicle, wherein the vehicle includes at least two sensors each of which is capable of generating a signal, wherein the method includes the steps of monitoring the signals, determining a panic index based upon the signals and, when the determined panic index exceeds a predetermined threshold value, actuating the controlled device.
摘要翻译： 一种用于响应于车辆的预碰撞状态来致动受控设备的方法，其中所述车辆包括至少两个传感器，每个传感器能够产生信号，其中所述方法包括以下步骤：监测所述信号，确定 基于信号的紧急指数，并且当确定的紧急指数超过预定阈值时，启动受控设备。
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10.发明授权Method for synchronizing data utilized in redundant, closed loop control systems 有权在冗余闭环控制系统中同步数据的方法公开(公告)号：US07181644B2
公开(公告)日：2007-02-20
申请号：US10043930
申请日：2002-01-11
CPC分类号： G05B9/03
摘要： A method for synchronizing data utilized in a redundant, closed-loop feedback control system is disclosed. In an exemplary embodiment, the method includes configuring a plurality of control nodes within the control system, with each of the plurality of control nodes transmitting and receiving data through a common communication bus. At each of the plurality of control nodes during a given control loop time T=N, the receipt of externally generated data with respect to each control node is verified, the externally generated data having been generated during a preceding control loop time T=N−1. At each of the plurality of control nodes during the given control loop time T=N, output control data is calculated using the externally generated data. During the given control loop time T=N, the calculated output control data from each individual control node is further transmitted over the communication bus to be later utilized by other control nodes during a subsequent control loop time T=N+1.
摘要翻译： 公开了一种在冗余的闭环反馈控制系统中同步数据的方法。 在示例性实施例中，该方法包括在控制系统内配置多个控制节点，多个控制节点中的每一个通过公共通信总线发送和接收数据。 在给定的控制环路时间T = N期间，在多个控制节点的每个控制节点处，验证相对于每个控制节点接收外部产生的数据，外部产生的数据已经在先前控制环路时间T = N- 1。 在给定控制环路时间T = N期间，在多个控制节点的每个控制节点，使用外部产生的数据来计算输出控制数据。 在给定的控制环路时间T = N期间，通过通信总线进一步发送来自每个单独控制节点的计算输出控制数据，以便随后的控制环路时间T = N + 1期间被其它控制节点稍后利用。
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