专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US06738699B2 Vehicle steering system control based on a model-matching strategy 有权
标题翻译：基于模型匹配策略的车辆转向系统控制
公开(公告)号：US06738699B2
公开(公告)日：2004-05-18
申请号：US10228224
申请日：2002-08-26
申请人： Yixin Yao , Behrouz Ashrafi
发明人： Yixin Yao , Behrouz Ashrafi
IPC分类号： G06F1900
CPC分类号： B62D5/006 , B62D6/008
摘要： A steer-by-wire control system that includes a road wheel actuation control system controlling road wheel angles to track a road wheel reference angle and a steering wheel control system producing a steering wheel angle to the road wheel actuation control system, steering feel for the vehicle driver and active steering wheel return. The steering wheel control system further including a steering wheel model matching controller that receives an input signal from the steering wheel control system and an input signal from the road wheel control system and generates a control output signal based on a model-matching control law, wherein the control output signal controls a reaction torque of the steering wheel control system to produce the steering feel for the driver and control the return rate of a steering wheel or a joystick.
摘要翻译：一种线控转向控制系统，其包括控制车轮角度以跟踪车轮参考角的车轮致动控制系统和产生与车轮致动控制系统的方向盘角度的方向盘控制系统，车辆司机和主动方向盘返回。方向盘控制系统还包括方向盘模型匹配控制器，其接收来自方向盘控制系统的输入信号和来自车轮控制系统的输入信号，并且基于模型匹配控制律产生控制输出信号，其中控制输出信号控制方向盘控制系统的反作用转矩，以产生驾驶员的转向感觉并控制方向盘或操纵杆的返回速度。

12. 发明授权

US06185485B2 Relative vehicle platform having synchronized adaptive offset calibration for lateral accelerometer and steering angle sensor 有权
标题翻译：相对车辆平台具有用于横向加速度计和转向角传感器的同步自适应偏移校准
公开(公告)号：US06185485B2
公开(公告)日：2001-02-06
申请号：US09218281
申请日：1998-12-22
申请人： Behrouz Ashrafi , Dinu Petre Madau , Hongtei Eric Tseng
发明人： Behrouz Ashrafi , Dinu Petre Madau , Hongtei Eric Tseng
IPC分类号： B62D600
CPC分类号： B60T8/1755 , B60T2210/22
摘要： A system and method for vehicle dynamic control processes a compensated yaw rate signal measurement and a compensated lateral acceleration signal measurement (30, 32) to derive a signal measurement of road bank angle disturbance not compensated for in a compensated steering angle signal measurement and provides the derived signal to a controller (12). The compensated steering angle signal measurement is an input to the controller. Because a disturbance already compensated in the compensated steering angle signal measurement is transparent to the controller, the controller is able to adjust the control action of the vehicle dynamic control system based on the derived signal measurement of road bank angle disturbance not compensated for in a compensated steering angle signal measurement, thereby providing enhanced robustness of control.
摘要翻译：用于车辆动态控制的系统和方法处理补偿的横摆速率信号测量和补偿的横向加速度信号测量（30,32），以导出在补偿的转向角信号测量中未补偿的道路坡度角扰动的信号测量，并且提供导出信号到控制器（12）。补偿转向角信号测量是控制器的输入。由于在补偿转向角信号测量中已经补偿的扰动对于控制器是透明的，所以控制器能够基于经补偿的道路坡度角扰动的未得到补偿的导出信号测量值来调整车辆动态控制系统的控制动作转向角信号测量，从而提供更强的控制鲁棒性。

13. 发明授权

US6122568A Method and apparatus for determining the dynamic stability of an automotive vehicle 有权
标题翻译：用于确定机动车辆的动态稳定性的方法和装置
公开(公告)号：US6122568A
公开(公告)日：2000-09-19
申请号：US218284
申请日：1998-12-22
申请人： Dinu Petre Madau , Behrouz Ashrafi , Hongtei Eric Tseng
发明人： Dinu Petre Madau , Behrouz Ashrafi , Hongtei Eric Tseng
IPC分类号： B60G17/019 , B60G17/0195 , B60T8/1755 , B60T8/60 , G06F7/00
CPC分类号： B60T8/17551 , B60G17/019 , B60G17/0195 , B60W30/02 , B60G2400/0523 , B60G2400/104 , B60G2400/412 , B60G2800/24 , B60G2800/70 , B60G2800/91 , B60G2800/92 , B60G2800/94 , B60G2800/96 , B60W2510/20 , B60W2520/125 , B60W2520/14 , B60W2710/18 , B60W2710/20 , B60W2710/22 , B60W2720/14
摘要： A method and apparatus for determining the stability of an automotive vehicle includes a steering wheel sensor generating a steering wheel signal, a yaw rate sensor generating a yaw rate signal and a lateral acceleration sensor for generating a lateral acceleration signal. A controller is coupled to the steering wheel sensor, the yaw rate sensor, and the accelerometer. The controller determines a first steering wheel angle from the yaw rate signal, a second steering wheel angle from the lateral acceleration signal, and a third steering angle from a steering wheel signal. The controller generates a vehicle stability indicator in response to the first steering wheel angle, the second steering wheel angle and the third steering wheel angle.
摘要翻译：用于确定机动车辆的稳定性的方法和装置包括产生方向盘信号的方向盘传感器，产生横摆率信号的横摆率传感器和用于产生横向加速度信号的横向加速度传感器。控制器耦合到方向盘传感器，偏航率传感器和加速度计。控制器根据横摆率信号确定第一方向盘角度，从横向加速度信号确定第二方向盘角度，并从方向盘信号确定第三转向角度。控制器响应于第一方向盘角度，第二方向盘角度和第三方向盘角度而产生车辆稳定性指示器。

14. 发明授权

US5809434A Method and apparatus for dynamically determically determining an operating state of a motor vehicle 失效
标题翻译：用于动态地确定机动车辆的运行状态的方法和装置
公开(公告)号：US5809434A
公开(公告)日：1998-09-15
申请号：US638628
申请日：1996-04-26
申请人： Behrouz Ashrafi , Darrel Alan Recker
发明人： Behrouz Ashrafi , Darrel Alan Recker
IPC分类号： B60G17/018 , B60G17/019 , B60G17/0195 , B60T8/172 , B62D7/15 , B60T8/72
CPC分类号： B60T8/172 , B60G17/018 , B60G17/019 , B60G17/0195 , B60G2400/104 , B60G2400/208 , B60G2400/41 , B60G2400/822 , B60G2600/02 , B60G2600/04 , B60G2600/08 , B60G2600/14 , B60G2600/16 , B60G2600/44 , B60G2600/604 , B60G2600/70 , B60G2600/90 , B60G2800/00 , B60G2800/012 , B60G2800/212 , B60G2800/24 , B60G2800/92 , B60T2250/06
摘要： A system for dynamically determining an operating state of a motor vehicle for input to a controller employed to control dynamics of the motor vehicle includes sensors for measuring predetermined vehicle operating state. The system also includes a device for predicting a value for the predetermined operating state, which can then be used to determine a correction factor for the measured operating state signal. This correction factor is proportional to the erroneous component of the measured vehicle operating state. Together, measured operating state and the correction signal are used to obtain a compensated operating state signal. This is particularly useful for reducing the effects of sensor drift and DC offset.
摘要翻译：用于动态地确定用于输入到用于控制机动车辆的动力学的控制器的机动车辆的操作状态的系统包括用于测量预定车辆操作状态的传感器。该系统还包括用于预测预定操作状态的值的装置，其可以用于确定所测量的操作状态信号的校正因子。该校正因子与所测量的车辆运行状态的误差成分成比例。一起测量的运行状态和校正信号用于获得经补偿的运行状态信号。这对于减少传感器漂移和直流偏移的影响特别有用。

15. 发明公开

US20240166053A1 TECHNIQUES FOR SEGMENTED MONITORING OF POWERTRAIN PROPULSIVE TORQUE IN ELECTRIFIED VEHICLES 审中-公开
公开(公告)号：US20240166053A1
公开(公告)日：2024-05-23
申请号：US17991870
申请日：2022-11-22
申请人： Feisel Weslati , Behrouz Ashrafi , Jaihyun Lee
发明人： Feisel Weslati , Behrouz Ashrafi , Jaihyun Lee
IPC分类号： B60L3/00
CPC分类号： B60L3/0084 , B60L2240/545 , B60L2240/549 , B60L2250/28
摘要： Control systems and methods for an electrified powertrain of an electrified vehicle include performing, by a main control system, a sequence of first processes based on an initial input including a set of signals indicative of at least one of a driver torque request and expected vehicle behavior and other intermediary inputs to generate a sequence of first outputs and performing, by a secondary monitoring system distinct from the main control system, a sequence of second processes based on the initial input and other intermediary inputs to generate a sequence of second outputs. The secondary monitoring system then attempts to rationalize each first output relative to its respective second output. Based on the rationalization, one of these outputs is used as an intermediary output in the sequence until a rationalized final output is obtained and used to generate control commands for torque actuators of the electrified powertrain.

16. 发明授权

US06901320B2 Friction compensation in a vehicle steering system 有权
标题翻译：车辆转向系统的摩擦补偿
公开(公告)号：US06901320B2
公开(公告)日：2005-05-31
申请号：US10342957
申请日：2003-01-15
申请人： Yixin Yao , Behrouz Ashrafi , Ann Hayes Larsen
发明人： Yixin Yao , Behrouz Ashrafi , Ann Hayes Larsen
IPC分类号： B62D5/00 , B62D5/04 , B62D6/00
CPC分类号： B62D5/0463 , B62D5/001
摘要： The present invention provides systems and methods of friction compensation in a steer-by-wire system or in a general electric steering system using control, estimation and modeling methodologies. A friction compensator in the steer-by-wire control system produces a friction compensating torque value equal and opposite in sign to the instantaneous friction torque. This compensating friction torque is added to the steering system control signal to eliminate the effects of friction present in the system such that the system performances are improved. The friction compensator produces the compensating friction torque according to one of two schemes: model-based or non-model based. The model-based scheme encompasses a number of different methods including a standard model-based scheme, a disturbance torque observer-based scheme, an adaptive friction compensation scheme, or a model reference adaptive control scheme. The non-model based scheme includes a fuzzy logic scheme.
摘要翻译：本发明提供了使用控制，估计和建模方法的线控转向系统或通用电动转向系统中的摩擦补偿的系统和方法。转向控制系统中的摩擦补偿器产生与瞬时摩擦转矩相等和相反的摩擦补偿扭矩值。该补偿摩擦转矩被加到转向系统控制信号上以消除系统中存在的摩擦的影响，从而提高系统性能。摩擦补偿器根据两种方案之一产生补偿摩擦转矩：基于模型或非模型。基于模型的方案包括许多不同的方法，包括基于标准模型的方案，基于干扰扭矩观测器的方案，自适应摩擦补偿方案或模型参考自适应控制方案。基于非模型的方案包括模糊逻辑方案。

17. 发明授权

US06574539B1 Steering wheel torque-based detection of misalignment of a vehicle's steering system 有权
标题翻译：方向盘扭矩检测车辆转向系统的不对准
公开(公告)号：US06574539B1
公开(公告)日：2003-06-03
申请号：US09742194
申请日：2000-12-20
申请人： Behrouz Ashrafi
发明人： Behrouz Ashrafi
IPC分类号： B62D600
CPC分类号： G01M17/06
摘要： A misalignment detection system (12) for steering systems of an automotive vehicle (10) includes a logic device (14) coupled to a vehicle speed sensor (18) and a steering wheel angle sensor (20). The logic device is also coupled to a memory (16) that is used to store a steering wheel ratio map and a historic steering wheel angle or a wheel angle value derived from an automobile manufacturer's wheel alignment specification. The logic device (14) compares the signal from the steering wheel angle sensor (20) with the stored value of either the historic steering wheel angle or the value derived from the manufacturer's alignment specifications at a given vehicle speed to determine error. An indicator (28) may provide an indication to the vehicle operator to signal the presence of the misalignment condition of the steering system.
摘要翻译：用于机动车辆（10）的转向系统的未对准检测系统（12）包括联接到车速传感器（18）和方向盘角度传感器（20）的逻辑装置（14）。逻辑装置还耦合到存储器（16），该存储器用于存储从汽车制造商的车轮对准规范得出的方向盘比图和历史方向盘角度或车轮角度值。逻辑装置（14）将来自方向盘角度传感器（20）的信号与历史方向盘角度的存储值或从制造商的对准规格以给定车辆速度导出的值进行比较，以确定误差。指示器（28）可以向车辆操作者提供指示信号转向系统的不对准状况的指示。

18. 发明申请

US20130305863A1 METHOD OF OPERATING A PARK LOCK MECHANISM 审中-公开
标题翻译：操作停车机构的方法
公开(公告)号：US20130305863A1
公开(公告)日：2013-11-21
申请号：US13476221
申请日：2012-05-21
申请人： Feisel Weslati , Behrouz Ashrafi
发明人： Feisel Weslati , Behrouz Ashrafi
IPC分类号： F16H57/10
CPC分类号： F16H63/48 , F16H2059/663 , Y10T74/19637
摘要： A method of operating a park lock mechanism in a vehicle includes determining a force acting on a vehicle park lock mechanism when the vehicle is in park, and providing an offsetting force to counteract the force on the park lock mechanism before the vehicle is shifted out of park. In doing so, harshness and noise that may be associated with shifting a vehicle out of park, especially when the vehicle is parked on an incline, can be reduced or eliminated.
摘要翻译：在车辆中操作停车锁定机构的方法包括：确定当车辆停放时作用在车辆停放锁定机构上的力，并且在车辆移出之前提供抵消力以抵消驻车锁定机构上的力公园。在这样做时，可能减少或消除了将车辆驶离公园，特别是当车辆停放在倾斜处时可能伴随的粗糙度和噪音。

19. 发明申请

US20080300755A1 SIDE COLLISION AVOIDANCE SYSTEM 审中-公开
标题翻译：侧面碰撞避免系统
公开(公告)号：US20080300755A1
公开(公告)日：2008-12-04
申请号：US11755302
申请日：2007-05-30
申请人： Dinu Petre Madau , Behrouz Ashrafi
发明人： Dinu Petre Madau , Behrouz Ashrafi
IPC分类号： G08G1/16 , G05D3/00 , G06F17/00
CPC分类号： B60W30/09 , B60R1/00 , B60R2300/101 , B60R2300/301 , B60R2300/302 , B60R2300/8026 , B60R2300/804 , B60R2300/8093 , B60T7/22 , B60T8/4809 , B60W10/18 , B60W50/16 , B60W2420/52 , G08G1/167
摘要： A motor vehicle side collision avoidance system for avoiding collisions with objects. The system includes a direction sensor generating a direction signal corresponding a direction of motion of the vehicle, an external detector generating a detector signal corresponding to a location of objects outside of the vehicle, and a braking control system including at least two independently operable braking devices coupled to respective wheels. A processor is coupled to the direction sensor, the external detector, and the braking control system. The processor receives the direction and detector signals and is configured to send an avoidance signal to the braking control system based on the direction and detector signals. Upon receipt of the avoidance signal, the braking control system activates appropriate braking devices to avoid collision with the objects.
摘要翻译：一种用于避免与物体碰撞的汽车侧碰撞避免系统。该系统包括产生对应于车辆的运动方向的方向信号的方向传感器，产生对应于车辆外部物体的位置的检测器信号的外部检测器，以及包括至少两个独立可操作的制动装置耦合到相应的轮子。处理器耦合到方向传感器，外部检测器和制动控制系统。处理器接收方向和检测器信号，并且被配置为基于方向和检测器信号向制动控制系统发送回避信号。在接收到回避信号时，制动控制系统启动适当的制动装置，以避免与物体发生碰撞。

20. 发明授权

US06729432B1 Re-configurable control of steer-by-wire systems 有权
标题翻译：可重新配置的线控转向系统
公开(公告)号：US06729432B1
公开(公告)日：2004-05-04
申请号：US10428525
申请日：2003-05-02
申请人： Yixin Yao , Behrouz Ashrafi
发明人： Yixin Yao , Behrouz Ashrafi
IPC分类号： B62D504
CPC分类号： B62D5/001 , B62D5/003 , B62D5/0484
摘要： The present invention involves a system and method of re-configurable control for a vehicle steer-by-wire system. A steer-by-wire control system includes a steering wheel control system and a road wheel control system for a vehicle. Each control system is provided with a respective controlled plant and a re-configurable controller. The controllers receive output measurement signals from the respective controlled plants and produce control command signals for the controlled plants for re-configurable control of the steer-by-wire system. An adaptive re-configurable control is provided with fault detection and isolation, fault decision, parameter identification for the steer-by-wire controlled plant, and the re-configurable controllers with automatic adjustable structure and/or parameters. The re-configurable controllers automatically adjust their structure and parameters to maintain stability and certain performance requirements despite faults that occur in the steer-by-wire system.
摘要翻译：本发明涉及用于车辆线控系统的可重新配置控制的系统和方法。转向控制系统包括方向盘控制系统和用于车辆的车轮控制系统。每个控制系统都配备有相应的受控设备和可重新配置的控制器。控制器接收来自相应受控设备的输出测量信号，并产生用于被控制工厂的控制命令信号，用于线控转向系统的可重新配置控制。提供自适应可重新配置的控制，具有故障检测和隔离，故障判定，线控转向控制设备的参数识别以及具有自动可调结构和/或参数的可重新配置的控制器。可重新配置的控制器自动调整其结构和参数，以保持稳定性和某些性能要求，尽管在线控转向系统中发生故障。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式