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21. 发明授权

US08903610B2 System for providing assist torque based on a vehicle state 有权
标题翻译：基于车辆状态提供辅助转矩的系统
公开(公告)号：US08903610B2
公开(公告)日：2014-12-02
申请号：US13795303
申请日：2013-03-12
申请人： Ashok Chandy
发明人： Ashok Chandy
IPC分类号： B62D6/00 , G06D1/00
CPC分类号： B62D6/00 , B62D5/0463 , B62D15/025
摘要： A control system for providing an assist torque is provided. The control system includes a control algorithm module and a comfort limit module. The control algorithm module calculates a corrective steering torque based on a target vehicle state and an estimated vehicle state. The comfort limit module receives a handwheel torque. The comfort limit module calculates a limited corrective steering torque based on the corrective steering torque and the handwheel torque. The limited steering torque represents an allowable amount of the assist torque provided by the control system.
摘要翻译：提供了一种用于提供辅助转矩的控制系统。控制系统包括控制算法模块和舒适限位模块。控制算法模块基于目标车辆状态和估计车辆状态来计算校正转向扭矩。舒适限位模块接收手轮扭矩。舒适极限模块基于矫正转向扭矩和手轮扭矩计算有限的矫正转向扭矩。有限的转向扭矩表示由控制系统提供的辅助转矩的允许量。

22. 发明授权

US08528686B2 Methods and systems involving electromagnetic torsion bars 失效
标题翻译：涉及电磁扭杆的方法和系统
公开(公告)号：US08528686B2
公开(公告)日：2013-09-10
申请号：US12333802
申请日：2008-12-12
申请人： Ashok Chandy , Mohammad S. Islam
发明人： Ashok Chandy , Mohammad S. Islam
IPC分类号： B62D5/04
CPC分类号： B62D6/10 , B62D5/0835 , G01L3/104 , H02K49/06 , H02K49/106
摘要： An actuator assembly including, a polar assembly including an inner tooth and an outer tooth, and a magnet disposed between the inner tooth and the outer tooth, the magnet operative to interact with the polar assembly to induce an electromagnetic torsion bar operative to impart a torque on a first shaft connected to the ring magnet.
摘要翻译：一种致动器组件，包括：包括内齿和外齿的极性组件和设置在所述内齿和所述外齿之间的磁体，所述磁体可操作以与所述极性组件相互作用，以引起电磁扭力杆，以使扭矩在连接到环形磁铁的第一轴上。

23. 发明授权

US08489282B2 Electric power steering control methods and systems 有权
标题翻译：电动助力转向控制方法和系统
公开(公告)号：US08489282B2
公开(公告)日：2013-07-16
申请号：US13349154
申请日：2012-01-12
申请人： Joel E. Birsching , Ashok Chandy
发明人： Joel E. Birsching , Ashok Chandy
IPC分类号： B62D6/00
CPC分类号： B62D5/0463
摘要： A control system for controlling a steering system is provided. The control system includes a first module that determines a hysteresis position based on handwheel velocity and handwheel torque. A second module selectively determines an assist curve based on the hysteresis position. A third module generates a final assist command based on the assist curve.
摘要翻译：提供一种用于控制转向系统的控制系统。控制系统包括基于手轮速度和手轮扭矩确定滞后位置的第一模块。第二模块基于滞后位置选择性地确定辅助曲线。第三个模块基于辅助曲线生成最终辅助命令。

24. 发明申请

US20120209473A1 ELECTRIC POWER STEERING CONTROL METHODS AND SYSTEMS 有权
标题翻译：电力转向控制方法与系统
公开(公告)号：US20120209473A1
公开(公告)日：2012-08-16
申请号：US13349154
申请日：2012-01-12
申请人： Joel E. Birsching , Ashok Chandy
发明人： Joel E. Birsching , Ashok Chandy
IPC分类号： B62D6/00 , B62D5/04
CPC分类号： B62D5/0463
摘要： A control system for controlling a steering system is provided. The control system includes a first module that determines a hysteresis position based on handwheel velocity and handwheel torque. A second module selectively determines an assist curve based on the hysteresis position. A third module generates a final assist command based on the assist curve.
摘要翻译：提供一种用于控制转向系统的控制系统。控制系统包括基于手轮速度和手轮扭矩确定滞后位置的第一模块。第二模块基于滞后位置选择性地确定辅助曲线。第三个模块基于辅助曲线生成最终辅助命令。

25. 发明申请

US20100147619A1 METHODS AND SYSTEMS INVOLVING ELECTROMAGNETIC TORSION BARS 失效
标题翻译：涉及电磁力杆的方法和系统
公开(公告)号：US20100147619A1
公开(公告)日：2010-06-17
申请号：US12333802
申请日：2008-12-12
申请人： Ashok Chandy , Mohammad S. Islam
发明人： Ashok Chandy , Mohammad S. Islam
IPC分类号： B62D5/04
CPC分类号： B62D6/10 , B62D5/0835 , G01L3/104 , H02K49/06 , H02K49/106
摘要： An actuator assembly including, a polar assembly including an inner tooth and an outer tooth, and a magnet disposed between the inner tooth and the outer tooth, the magnet operative to interact with the polar assembly to induce an electromagnetic torsion bar operative to impart a torque on a first shaft connected to the ring magnet.
摘要翻译：一种致动器组件，包括：包括内齿和外齿的极性组件和设置在所述内齿和所述外齿之间的磁体，所述磁体可操作以与所述极性组件相互作用，以引起电磁扭力杆，以使扭矩在连接到环形磁铁的第一轴上。

26. 发明授权

US07498930B2 Communications interface module for vehicle 有权
标题翻译：车辆通信接口模块
公开(公告)号：US07498930B2
公开(公告)日：2009-03-03
申请号：US11266975
申请日：2005-11-04
申请人： Timothy M. Phillips , Ronald H. Dybalski , Frederick J. Berg , Timothy J. Bennett , Ashok Chandy
发明人： Timothy M. Phillips , Ronald H. Dybalski , Frederick J. Berg , Timothy J. Bennett , Ashok Chandy
IPC分类号： G01M17/00 , G06F7/00 , B60Q1/00 , B60L1/00 , B60L3/00 , H02G3/00
CPC分类号： B60R11/02 , B60R2011/0005 , B60R2011/001 , B60R2011/0061
摘要： The invention provides a communications interface module mountable in a vehicle. The communications interface module includes a first electrical interface for electrically communicating with a control system of a vehicle. The communications interface module also includes a second electrical interface spaced from the first electrical interface for being positioned in a passenger compartment of a vehicle. The communications interface module includes a plurality of communication lines extending in parallel between the first electrical interface and the second electrical interface. The plurality of communication lines exchange a plurality of different communication formats between the first electrical interface and the second electrical interface.
摘要翻译：本发明提供一种可安装在车辆中的通信接口模块。通信接口模块包括用于与车辆的控制系统电连通的第一电接口。通信接口模块还包括与第一电接口间隔开的第二电接口，用于定位在车辆的乘客舱中。通信接口模块包括在第一电接口和第二电接口之间并联延伸的多条通信线路。多个通信线路在第一电接口和第二电接口之间交换多个不同的通信格式。

27. 发明申请

US20080147276A1 METHOD, SYSTEM, AND APPARATUS FOR PROVIDING ENHANCED STEERING PULL COMPENSATION 有权
标题翻译：用于提供增强转向牵引补偿的方法，系统和装置
公开(公告)号：US20080147276A1
公开(公告)日：2008-06-19
申请号：US11611406
申请日：2006-12-15
申请人： Kathryn L. Pattok , Terrence D. Smith , Ashok Chandy , Julie A. Kleinau , Jeff Zuraski , Mark P. Colosky , Troy P. Strieter
发明人： Kathryn L. Pattok , Terrence D. Smith , Ashok Chandy , Julie A. Kleinau , Jeff Zuraski , Mark P. Colosky , Troy P. Strieter
IPC分类号： B62D6/10
CPC分类号： B62D5/0472 , B62D6/04
摘要： A method, system, and apparatus for providing enhanced steering pull compensation are provided. The method compensates for steering pull in a vehicle steering system that includes a handwheel. The method includes monitoring the vehicle to determine whether the vehicle is heading forward along a substantially linear straight-ahead path and, if so, measuring handwheel torque, as a sensed torque signal, to determine an amount of steering pull existing at the handwheel. The method also includes generating a torque assist signal in response to the sensed torque signal and calculating an offset signal for reducing the amount of steering pull to substantially zero. The method further includes producing a modified torque assist signal by adding the offset signal to the torque assist signal, and applying the modified torque assist signal to the vehicle steering system.
摘要翻译：提供了一种用于提供增强的转向牵引补偿的方法，系统和装置。该方法补偿包括手轮的车辆转向系统中的转向拉动。该方法包括监视车辆以确定车辆是否沿着基本线性的直线前进路径前进，并且如果是，则将手轮扭矩作为感测到的扭矩信号来确定在手轮处存在的转向拉力的量。该方法还包括响应于感测到的扭矩信号产生转矩辅助信号并计算偏移信号，以将转向牵引量减小到基本为零。该方法还包括通过将偏移信号加到转矩辅助信号上来产生修改的转矩辅助信号，以及将改进的转矩辅助信号施加到车辆转向系统。

28. 发明授权

US06681167B2 Vehicle chassis control with coordinated brake and steering control on split coefficient surface 有权
标题翻译：车辆底盘控制，具有协调的制动和转向控制分裂系数表面
公开(公告)号：US06681167B2
公开(公告)日：2004-01-20
申请号：US10164321
申请日：2002-06-04
申请人： Edward John Bedner , Aleksander Boguslaw Hac , Hsien Heng Chen , Ashok Chandy , Michael John Check
发明人： Edward John Bedner , Aleksander Boguslaw Hac , Hsien Heng Chen , Ashok Chandy , Michael John Check
IPC分类号： G06F1700
CPC分类号： B60K28/16 , B60T8/1764 , B60T2260/022 , B60T2260/024 , B60W2520/14 , B60W2520/28 , B62D7/159
摘要： A vehicle chassis control stores first and second calibrated values of a predetermined braking parameter and a steering correction parameter. The control includes apparatus for detecting a split coefficient condition with respect to the road surface; and, when it does and a braking signal is present, the control actuates braking apparatus for a wheel on the side of the vehicle having the higher coefficient of friction with the first calibrated value of the predetermined braking parameter and simultaneously actuates the steering apparatus with a steering correction to compensate for yaw induced by braking on the split coefficient road surface. If the steering correction is not available, however, the braking apparatus is actuated for the wheel having the higher coefficient of friction with the second calibrated value of the predetermined braking parameter without simultaneously actuating the steering apparatus with the steering correction. The steering correction may have an open loop part derived from a difference between wheel slips of two wheels on opposite sides of the vehicle and/or a closed loop part derived from yaw rate, side slip and/or side slip rate error.
摘要翻译：车辆底盘控制器存储预定制动参数和转向校正参数的第一和第二校准值。该控制装置包括用于检测相对于路面的分裂系数条件的装置; 并且当其存在并且存在制动信号时，所述控制致动具有与所述预定制动参数的第一校准值相比具有较高摩擦系数的车辆侧的车轮的制动装置，并且同时致动所述转向装置转向补偿以补偿由分裂系数路面上的制动引起的偏航。然而，如果转向矫正不可用，则制动装置对于具有较高摩擦系数的车轮与具有预定制动参数的第二校准值而被致动，而不用转向校正同时致动转向装置。转向校正可以具有从车辆相对侧上的两个车轮的车轮滑移之间的差导出的开环部分和/或由偏航率，侧滑和/或侧滑率误差导出的闭环部分。

29. 发明授权

US6050360A Apparatus and method for producing a desired return torque in a vehicle power steering system having a rotational steering position sensor 失效
标题翻译：在具有旋转转向位置传感器的车辆动力转向系统中产生期望的返回转矩的装置和方法
公开(公告)号：US6050360A
公开(公告)日：2000-04-18
申请号：US103603
申请日：1998-06-24
申请人： Kathryn Lynn Pattok , Deepak Chhaya , Ashok Chandy
发明人： Kathryn Lynn Pattok , Deepak Chhaya , Ashok Chandy
IPC分类号： B62D6/00 , B62D5/04 , B62D15/02 , B62D6/10
CPC分类号： B62D5/0466 , B62D15/0245
摘要： A vehicle power steering system has a steering shaft with a rotational position sensor providing signal rollover so that each sensor output indicates a plurality of potential absolute steering positions separated from each other by multiples of a rollover angle. Upon each initiation of vehicle operation, the system selects, as an unadjusted steering position, one of the plurality of absolute steering positions corresponding to an initial sensor output; and the system repeatedly updates the unadjusted steering position in response to sensor output changes, including sensed rollover events. The system repeatedly tests a set of revolution offsets with the updated unadjusted steering position and excludes any which indicate an out-of-range absolute steering position. The final remaining revolution offset is latched as the correct value. Preferably, a temporary value of revolution offset used with the unadjusted position during the testing provides a return or centering torque of zero; and, once the final value is latched, the temporary value is walked incrementally toward the final value, when the return torque value is in the correct centering direction, to avoid a sudden increase in return torque or a return torque in the wrong direction. The walk ends when (1) the temporary value of revolution offset reaches the final value or (2) the true value of steering position, derived from the final value of revolution offset and the unadjusted position, reaches center, whichever occurs first. Thereafter, the final value of revolution offset is used with the updated unadjusted value to determine the absolute value, and thus return torque.
摘要翻译：车辆动力转向系统具有转向轴，该转向轴具有提供信号翻转的旋转位置传感器，使得每个传感器输出指示以相反角度彼此分离的多个潜在的绝对转向位置。在车辆操作开始时，系统选择与初始传感器输出对应的多个绝对转向位置中的一个作为未调节的转向位置; 并且系统响应于包括感测到的翻转事件的传感器输出变化重复地更新未调整的转向位置。该系统用更新的未经调整的转向位置重复测试一组旋转偏移，并且排除任何指示超出范围的绝对转向位置的转向偏移。最后的剩余旋转偏移被锁定为正确的值。优选地，在测试期间与未调整位置一起使用的旋转偏移的临时值提供返回或定心转矩为零; 并且一旦最终值被锁定，当返回扭矩值处于正确的定心方向时，临时值逐渐向最终值行走，以避免在错误方向上的返回转矩或返回转矩的突然增加。当（1）旋转偏移的临时值达到最终值时，行走结束，或（2）从旋转偏移的最终值和未调整位置得到的转向位置的真实值到达中心，以先到者为准。此后，使用旋转偏移的最终值与更新的未调整值来确定绝对值，从而返回扭矩。

30. 发明授权

US5704446A Electric power steering control 失效
标题翻译：电动助力转向控制
公开(公告)号：US5704446A
公开(公告)日：1998-01-06
申请号：US538155
申请日：1995-10-02
申请人： Ashok Chandy , Farhad Bolourchi , Christophe Etienne
发明人： Ashok Chandy , Farhad Bolourchi , Christophe Etienne
IPC分类号： B62D5/04
CPC分类号： B62D5/0466
摘要： An electric power steering control apparatus comprising a vehicle steering wheel, a torque sensor for sensing torque in the vehicle steering column, a motor for providing motive force power assist to the steering system, a controller receiving the torque sensor signal and providing a motor control command to the motor responsive thereto, wherein the motor provides the motive force power assist responsive to the motor control command, and a high pass/low pass filter in the controller, wherein the high pass/low pass filter isolates low frequency components of the sensed vehicle steering system torque representing operator input torque and wherein the controller, responsive to the low frequency components determines a first, driver responsive, component of the motor control command, wherein the high pass/low pass filter isolates high frequency components of the sensed vehicle steering system torque and wherein the controller, responsive to the high frequency components, determines a second component of the motor control command.
摘要翻译：一种电动助力转向控制装置，包括车辆方向盘，用于感测车辆转向柱中的转矩的转矩传感器，用于向转向系统提供动力辅助的电动机，接收转矩传感器信号的控制器，以及提供电动机控制指令对电动机进行响应，其中电动机响应于电动机控制命令提供动力功率辅助，以及控制器中的高通/低通滤波器，其中高通/低通滤波器隔离感测车辆的低频分量转向系统扭矩表示操作员输入扭矩，并且其中响应于低频分量的控制器确定电动机控制命令的第一个驱动器响应的分量，其中高通/低通滤波器将感测车辆转向系统的高频分量扭矩，并且其中所述控制器响应于所述高频分量确定第二次 d分量的电机控制命令。

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