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1. 发明授权

US08930081B2 System for indicating an impending vehicle maneuver 有权
标题翻译：用于指示即将发生的车辆操纵的系统
公开(公告)号：US08930081B2
公开(公告)日：2015-01-06
申请号：US13426383
申请日：2012-03-21
申请人： Farhad Bolourchi , Timothy W. Kaufmann , Ashok Chandy
发明人： Farhad Bolourchi , Timothy W. Kaufmann , Ashok Chandy
IPC分类号： B62D5/02
CPC分类号： B62D15/025 , G01S19/39
摘要： A system for indicating an impending vehicle maneuver within a predetermined distance is provided. The system includes a navigational system and a control module. The navigational system receives a vehicle destination and determines a current geographical vehicle position. The navigational system determines if the impending vehicle maneuver is required within the predetermined distance based on the vehicle destination and the current geographical vehicle position. The control module is in communication with the navigational system and a handwheel. The control module sends a signal that creates a steering assist torque in the handwheel if the impending vehicle maneuver is required.
摘要翻译：提供了一种用于在预定距离内指示即将发生的车辆操纵的系统。该系统包括导航系统和控制模块。导航系统接收车辆目的地并确定当前的地理位置。导航系统基于车辆目的地和当前的地理车辆位置确定在预定距离内是否需要即将发生的车辆机动。控制模块与导航系统和手轮通信。如果需要即将进行的车辆操纵，则控制模块发送在手轮中产生转向辅助转矩的信号。

2. 发明申请

US20130253765A1 SYSTEM FOR INDICATING AN IMPENDING VEHICLE MANEUVER 有权
标题翻译：用于指示车辆行驶的系统
公开(公告)号：US20130253765A1
公开(公告)日：2013-09-26
申请号：US13426383
申请日：2012-03-21
申请人： Farhad Bolourchi , Timothy W. Kaufmann , Ashok Chandy
发明人： Farhad Bolourchi , Timothy W. Kaufmann , Ashok Chandy
IPC分类号： B62D6/00
CPC分类号： B62D15/025 , G01S19/39
摘要： A system for indicating an impending vehicle maneuver within a predetermined distance is provided. The system includes a navigational system and a control module. The navigational system receives a vehicle destination and determines a current geographical vehicle position. The navigational system determines if the impending vehicle maneuver is required within the predetermined distance based on the vehicle destination and the current geographical vehicle position. The control module is in communication with the navigational system and a handwheel. The control module sends a signal that creates a steering assist torque in the handwheel if the impending vehicle maneuver is required.
摘要翻译：提供了一种用于在预定距离内指示即将发生的车辆操纵的系统。该系统包括导航系统和控制模块。导航系统接收车辆目的地并确定当前的地理位置。导航系统基于车辆目的地和当前的地理车辆位置来确定在预定距离内是否需要即将进行的车辆操纵。控制模块与导航系统和手轮通信。如果需要即将进行的车辆操纵，则控制模块发送在手轮中产生转向辅助转矩的信号。

3. 发明授权

US09051005B2 Torque-based on-center feel for electric power steering 有权
标题翻译：基于扭矩的电动助力转向中心感觉
公开(公告)号：US09051005B2
公开(公告)日：2015-06-09
申请号：US13606809
申请日：2012-09-07
申请人： Farhad Bolourchi , Ashok Chandy
发明人： Farhad Bolourchi , Ashok Chandy
IPC分类号： B62D5/04
CPC分类号： B62D5/0466 , B62D5/0463
摘要： A control system for controlling an electric power steering system is provided. The control system includes a first module configured to compute an on-center torque adjustment compensation based on a sensed handwheel torque. The on-center torque adjustment compensation is configured to compensate for inertia of a steering actuator motor using a frequency-based methodology. The control system also includes a second module configured to generate a command signal to control the steering actuator motor of the electric power steering system based on the on-center torque adjustment compensation.
摘要翻译：提供一种用于控制电动助力转向系统的控制系统。控制系统包括第一模块，其被配置为基于感测到的手轮扭矩来计算中心上的扭矩调节补偿。中心转矩调节补偿被配置为使用基于频率的方法来补偿转向致动器电动机的惯性。该控制系统还包括：第二模块，被配置为基于中心上的转矩调节补偿生成用于控制电动助力转向系统的转向执行器电动机的指令信号。

4. 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。

5. 发明申请

US20130238193A1 TORQUE-BASED ON-CENTER FEEL FOR ELECTRIC POWER STEERING 有权
标题翻译：用于电力转向的基于扭矩的中心感应器
公开(公告)号：US20130238193A1
公开(公告)日：2013-09-12
申请号：US13606809
申请日：2012-09-07
申请人： Farhad Bolourchi , Ashok Chandy
发明人： Farhad Bolourchi , Ashok Chandy
IPC分类号： B62D5/04
CPC分类号： B62D5/0466 , B62D5/0463
摘要： A control system for controlling an electric power steering system is provided. The control system includes a first module configured to compute an on-center torque adjustment compensation based on a sensed handwheel torque. The on-center torque adjustment compensation is configured to compensate for inertia of a steering actuator motor using a frequency-based methodology. The control system also includes a second module configured to generate a command signal to control the steering actuator motor of the electric power steering system based on the on-center torque adjustment compensation.
摘要翻译：提供一种用于控制电动助力转向系统的控制系统。控制系统包括第一模块，其被配置为基于感测到的手轮扭矩来计算中心上的扭矩调节补偿。中心转矩调节补偿被配置为使用基于频率的方法来补偿转向致动器电动机的惯性。该控制系统还包括：第二模块，被配置为基于中心上的转矩调节补偿生成用于控制电动助力转向系统的转向执行器电动机的指令信号。

6. 发明授权

US5919241A Vehicle having electric power steering with active damping 失效
标题翻译：具有主动阻尼的电动助力车辆
公开(公告)号：US5919241A
公开(公告)日：1999-07-06
申请号：US766270
申请日：1996-12-13
申请人： Farhad Bolourchi , Christophe Etienne , Ashok Chandy , Nabeel Bitar , Mark Philip Colosky
发明人： Farhad Bolourchi , Christophe Etienne , Ashok Chandy , Nabeel Bitar , Mark Philip Colosky
IPC分类号： B62D5/04
CPC分类号： B62D5/0466 , B62D5/0472
摘要： A vehicle with an electric power steering system has a steering shaft with a resonant frequency of free rotational oscillation and a control which derives a driver assist torque signal, a return to center torque signal and an active damping torque signal and sums these signals to provide a motor command signal to the electric motor. The active damping torque signal is derived by filtering a generated steering shaft position signal in a filter having amplitude and phase characteristics of a differentiator from zero Hertz only through the resonant frequency of free rotational oscillation of the steering shaft and multiplying the filtered steering shaft position signal by a vehicle velocity factor derived from sensed vehicle velocity. Preferably, the electric motor is provided with one or more rotor position sensors used in the control thereof and rotor position signals from the rotor position sensors are provided as the steering shaft position signal.
摘要翻译：具有电动助力转向系统的车辆具有转向轴，其具有自由旋转振荡的共振频率，以及导出驾驶员辅助转矩信号，返回中心转矩信号和主动阻尼扭矩信号的控制，并将这些信号相加，以提供电机指令信号给电动机。主动阻尼转矩信号是通过在仅具有转向轴的自由旋转振荡的共振频率的滤波器中将由微分器的振幅和相位特性与零赫兹产生的转向轴位置信号进行滤波而得到的，并将滤波的转向轴位置信号通过从感测的车辆速度导出的车速因子。优选地，电动机设置有用于其控制中使用的一个或多个转子位置传感器，并且设置来自转子位置传感器的转子位置信号作为转向轴位置信号。

7. 发明授权

US07036445B2 Watercraft steer-by-wire system 失效
标题翻译：船舶线控系统
公开(公告)号：US07036445B2
公开(公告)日：2006-05-02
申请号：US10643512
申请日：2003-08-19
申请人： Timothy W. Kaufmann , James M. Petrowski , Scott A. Millsap , Stephen V. Gillman , James M. Card , Ashok Chandy
发明人： Timothy W. Kaufmann , James M. Petrowski , Scott A. Millsap , Stephen V. Gillman , James M. Card , Ashok Chandy
IPC分类号： B63H25/00
CPC分类号： B63H25/42 , B63B39/061 , B63H25/02 , B63H25/04
摘要： A watercraft steer-by-wire control system for watercraft comprising: a direction control system including a rudder position sensor; a helm control system including at least one of; a helm position sensor to produce and transmit a helm position signal and an optional torque sensor to produce and transmit a helm torque sensor signal. The system optionally including a watercraft speed sensor and a master control unit in operable communication with the watercraft speed sensor, the helm control system, and the direction control system. The master control unit includes a position control process for generating the directional command signal in response to the watercraft speed signal, the helm torque sensor signal and the helm position signal. The master control unit includes a torque control process for generating the helm command signal, based on the helm torque sensor signal, the helm position signal and the watercraft speed signal.
摘要翻译：一种用于船舶的船舶转向控制系统，包括：方向控制系统，包括舵位置传感器; 一个舵控制系统，包括以下中的至少一个：用于产生和传送舵位置信号的舵位置传感器和可选的扭矩传感器以产生和传送舵扭矩传感器信号。该系统可选地包括船体速度传感器和与船只速度传感器，舵控系统和方向控制系统可操作地通信的主控制单元。主控制单元包括响应于船体速度信号，舵扭矩传感器信号和舵位置信号产生方向指令信号的位置控制处理。主控制单元包括基于舵扭矩传感器信号，舵位置信号和船体速度信号产生舵指令信号的转矩控制处理。

8. 发明授权

US06738700B2 Method for conforming a signal to a fault requirement using a command limiting scheme 有权
标题翻译：使用命令限制方案将信号与故障要求一致的方法
公开(公告)号：US06738700B2
公开(公告)日：2004-05-18
申请号：US10376843
申请日：2003-02-28
申请人： Ashok Chandy
发明人： Ashok Chandy
IPC分类号： A01B6900
CPC分类号： B62D5/0457 , B62D5/0463
摘要： A method for conforming an input signal to fault requirements comprising: receiving an input signal; dividing the input signal into a low frequency component and a high frequency component; limiting the low frequency component to a maximum value, to create a limited signal; and combining the limited signal and the high frequency component, to create a limited command signal. A system for conforming an input signal to fault requirements comprising: an input signal in operable communication with a low pass filter. The input signal is also in operable communication with one of: a high pass filter and a first summing device in operable communication with said low pass filter. The system also includes a maximum value limiting device in operable communication with the low pass filter. A second summing device is in operable communication with the maximum value limiting device and one of, the high pass filter and the first summing device.
摘要翻译：一种用于使输入信号符合故障要求的方法，包括：接收输入信号; 将输入信号分为低频分量和高频分量; 将低频分量限制到最大值，以产生有限的信号; 并组合有限信号和高频分量，以产生有限的命令信号。一种用于使输入信号符合故障要求的系统，包括：与低通滤波器可操作地通信的输入信号。输入信号也可以与下列之一可操作地通信：高通滤波器和与所述低通滤波器可操作地通信的第一求和装置。该系统还包括与低通滤波器可操作地通信的最大值限制装置。第二求和装置与最大值限制装置可操作地通信，高通滤波器和第一求和装置之一。

9. 发明申请

US20140277945A1 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扭矩的系统
公开(公告)号：US20140277945A1
公开(公告)日：2014-09-18
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
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。

10. 发明授权

US6166502A Thermal current limiting apparatus and method for vehicle system with electric motor actuator 有权
标题翻译：具有电动执行器的车辆系统热流限制装置和方法
公开(公告)号：US6166502A
公开(公告)日：2000-12-26
申请号：US329874
申请日：1999-06-11
申请人： Kathryn Lynn Pattok , Steven James Collier-Hallman , Ashok Chandy , Julie Ann Kleinau
发明人： Kathryn Lynn Pattok , Steven James Collier-Hallman , Ashok Chandy , Julie Ann Kleinau
IPC分类号： H02P29/02 , H02K17/32
CPC分类号： H02P29/02
摘要： An electric motor actuator used in an environment of varying loads for varying time periods is efficiently designed to a predetermined specification in terms of both motor load and time and operated up to but not exceeding this specification over the full expected operating range. A motor load signal is low pass filtered with a plurality of time constants spanning a range of expected motor operation to generate a plurality of filtered motor load signals each associated with one of the time constants. Each of these filtered motor load signals is compared with a predetermined reference value corresponding to the associated time constant. If one or more of the filtered motor load signals exceeds the predetermined reference value with which it is compared, the one that so exceeds by the greatest margin is selected. A command current limit factor is derived from the selected filtered motor load signal and used to limit the commanded motor current. The motor load signal preferably indicates motor operating current and may be derived from a motor current sensor or from the limited command current signal, motor speed and operating voltage to compensate for a decrease of current with motor speed due to inductance/slope compensation and voltage limit effects.
摘要翻译：在电动机负载和时间方面，在负载变化的环境中使用的电动机致动器在电动机负载和时间方面被有效地设计成预定的规格，并且在整个预期工作范围内被操作达到但不超过该规范。电动机负载信号通过多个时间常数进行低通滤波，该时间常数跨越预期的电动机运行的范围，以生成每个与时间常数之一相关联的多个过滤的电动机负载信号。将这些滤波的马达负载信号中的每一个与对应于相关联的时间常数的预定参考值进行比较。如果一个或多个滤波的电动机负载信号超过与其进行比较的预定参考值，则选择超过最大余量的参考值。指令电流限制因子来自所选滤波的电机负载信号，用于限制指令的电机电流。电动机负载信号优选地表示电动机工作电流，并且可以从电动机电流传感器或从限制的指令电流信号，电动机速度和工作电压得出，以补偿由于电感/斜率补偿和电压限制引起的电动机速度的降低效果。

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