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1. 发明授权

US08538631B2 Method and system for vehicle parking assistance 有权
标题翻译：车辆停车辅助方法和系统
公开(公告)号：US08538631B2
公开(公告)日：2013-09-17
申请号：US11625909
申请日：2007-01-23
申请人： Yong H. Lee , Weiwen Deng , Alexander Kade , Yuen-Kwok Chin
发明人： Yong H. Lee , Weiwen Deng , Alexander Kade , Yuen-Kwok Chin
IPC分类号： G05D1/00 , G06F7/00
CPC分类号： B62D15/0285
摘要： A method to assist steering of a vehicle equipped with an active steering system when operating in a reverse direction is provided. The method comprises monitoring vehicle operating characteristics and an operator steering input. Boundaries of a target region and a reference point are determined. A target steering angle range is calculated based upon the reference point and the target location. A controlled steering angle of the active steering system is corrected when the operator steering input is outside the target steering angle range. An aspect of the invention included determining the reference point comprising a point of intersection of a first vector and a second vector, the first vector parallel to and passing through a centerline of a rear axle of the vehicle and the second vector perpendicular to and passing through a centerline of an inside front steerable wheel of the vehicle.
摘要翻译：提供了一种在反向工作时辅助配备有主动转向系统的车辆的转向的方法。该方法包括监视车辆操作特性和操作者转向输入。确定目标区域和参考点的边界。基于参考点和目标位置计算目标转向角范围。当操作者转向输入超出目标转向角范围时，主动转向系统的受控转向角被校正。本发明的一个方面包括确定参考点，其包括第一矢量和第二矢量的交点，平行于并经过车辆后轴的中心线的第一矢量和垂直于并经过的第二矢量车辆内侧可转向车轮的中心线。

2. 发明申请

US20110098890A1 SYSTEMS AND METHODS FOR DRIVER INTERVENTION IN AN AUTOMATIC STEERING SYSTEM 有权
标题翻译：自动转向系统中驱动干预的系统与方法
公开(公告)号：US20110098890A1
公开(公告)日：2011-04-28
申请号：US12604034
申请日：2009-10-22
申请人： Yong H. Lee , Jihan Ryu , Weiwen Deng
发明人： Yong H. Lee , Jihan Ryu , Weiwen Deng
IPC分类号： B62D6/00
CPC分类号： B62D1/286
摘要： A vehicle steering system includes an automatic steering control unit configured to control the vehicle steering system when in an automatic operational state and a driver intervention unit is configured to determine driver intervention during the automatic operational state. The driver intervention unit comprising a decision software module configured to determine driver intervention.
摘要翻译：车辆转向系统包括自动转向控制单元，其构造成在处于自动操作状态时控制车辆转向系统，并且驾驶员介入单元被配置为在自动操作状态期间确定驾驶员干预。驾驶员介入单元包括被配置为确定驾驶员干预的决策软件模块。

3. 发明申请

US20100152952A1 DETECTION OF DRIVER INTERVENTION DURING A TORQUE OVERLAY OPERATION IN AN ELECTRIC POWER STEERING SYSTEM 有权
标题翻译：在电力转向系统中检测扭矩过载操作时的驾驶员干预
公开(公告)号：US20100152952A1
公开(公告)日：2010-06-17
申请号：US12336819
申请日：2008-12-17
申请人： Yong H. Lee , Jihan Ryu , Weiwen Deng
发明人： Yong H. Lee , Jihan Ryu , Weiwen Deng
IPC分类号： B62D6/00
CPC分类号： B62D15/025 , B62D1/286
摘要： A method for controlling an assisted steering maneuver in an electric power steering (EPS) system includes modeling steering dynamics during a torque overlay operation to generate a dynamic steering model (DSM), measuring vehicle operating values, and detecting a driver intervention in the torque overlay operation based on the DSM and the vehicle operating values. The torque overlay operation is overridden when driver intervention is detected, allowing the driver to regain control of the steering maneuver. A vehicle includes a steering wheel, a steering assist mechanism, and an EPS system having an electronic control unit (ECU) adapted to determine a present intent of a driver of the vehicle to interrupt application of the TOC based on a vehicle operating value transmitted by the driver to the steering wheel. The ECU is operable for interrupting the torque overlay operation when the present intent of the driver is determined.
摘要翻译：用于控制电动助力转向（EPS）系统中的辅助转向操纵的方法包括在转矩叠加操作期间建模转向动力学以产生动态转向模型（DSM），测量车辆操作值，以及检测驾驶员在转矩叠加中的干预基于DSM和车辆运行值进行操作。当检测到驾驶员干预时，扭矩覆盖操作被覆盖，允许驾驶员重新获得对转向操纵的控制。一种车辆包括方向盘，转向辅助机构和EPS系统，其具有电子控制单元（ECU），该电子控制单元（ECU）基于车辆运行值确定车辆的驾驶员的当前意图以基于由司机到方向盘。当确定驾驶员的当前意图时，ECU可操作用于中断转矩叠加操作。

4. 发明申请

US20100131233A1 METHOD AND APPARATUS FOR DRIVER HANDS OFF DETECTION FOR VEHICLES WITH ACTIVE FRONT STEERING SYSTEM 有权
标题翻译：用于主动前转向系统的车辆驾驶员检测的方法和装置
公开(公告)号：US20100131233A1
公开(公告)日：2010-05-27
申请号：US12275831
申请日：2008-11-21
申请人： Wiewen Deng , Yong H. Lee , Haicen Zhang
发明人： Wiewen Deng , Yong H. Lee , Haicen Zhang
IPC分类号： G06F15/00
CPC分类号： B60T7/14 , B60K28/06 , B60T7/22 , B60W40/08 , B60W50/14 , B60W2520/10
摘要： A system and method for detecting the absence of contact between the hands of a driver of a vehicle and a steering wheel of the vehicle that have particular application in ensuring the proper functioning of various components of the driver assist steering systems and maintaining driver attentiveness. The method for detecting a no-contact condition between the hands of the driver of the vehicle and the steering wheel includes generating a model of the no-contact condition using a second-order transfer function. The method further includes obtaining a set of model-generated steering dynamics by estimating a plurality of parameters of the second-order transfer function and a set of measured steering dynamics using a plurality of sensors. The set of model-generated steering dynamics and the set of measured steering dynamics are then compared and the no-contact condition is detected based on this comparison.
摘要翻译：一种用于检测车辆驾驶员的手与车辆方向盘之间没有接触的系统和方法，其特别适用于确保驾驶员的各个部件的正常功能，辅助转向系统和维持驾驶员的注意力。用于检测车辆驾驶员的手与方向盘之间的无接触状态的方法包括使用二阶传递函数生成无接触状态的模型。该方法还包括通过使用多个传感器估计二阶传递函数的多个参数和一组测量的转向动力学来获得一组模型生成的转向动力学。然后比较一组模型生成的转向动力学和一组测量的转向动力学，并且基于该比较来检测无接触状态。

5. 发明授权

US07706945B2 Vehicle lateral control system 有权
标题翻译：车辆侧向控制系统
公开(公告)号：US07706945B2
公开(公告)日：2010-04-27
申请号：US11838032
申请日：2007-08-13
申请人： Weiwen Deng , Yong H. Lee
发明人： Weiwen Deng , Yong H. Lee
IPC分类号： A01B69/00 , B62D6/00 , B62D12/00 , B63G8/20 , B63H25/04 , G05D1/00
CPC分类号： B60T8/1755 , B60T2220/02 , B60T2230/02 , B60T2260/08 , B60T2270/86
摘要： A vehicle lateral control system that integrates both vehicle dynamics and kinematics control. The system includes a driver interpreter that provides desired vehicle dynamics and predicted vehicle path based on driver input. Error signals between the desired vehicle dynamics and measured vehicle dynamics, and between the predicted vehicle path and the measured vehicle target path are sent to dynamics and kinematics control processors for generating a separate dynamics and kinematics command signals, respectively, to minimize the errors. The command signals are integrated by a control integration processor to combine the commands to optimize the performance of stabilizing the vehicle and tracking the path. The integrated command signal can be used to control one or more of front wheel assist steering, rear-wheel assist steering or differential braking.
摘要翻译：一种整合车辆动力学和运动学控制的车辆横向控制系统。该系统包括一个基于驾驶员输入提供所需车辆动力学和预测车辆路径的驾驶员解释器。将所需的车辆动力学和测量的车辆动力学之间以及预测的车辆路径和测量的车辆目标路径之间的误差信号发送到动力学和运动学控制处理器，以分别产生单独的动力学和运动学命令信号以最小化误差。命令信号由控制集成处理器集成，以组合命令来优化稳定车辆和跟踪路径的性能。集成指令信号可用于控制前轮辅助转向，后轮辅助转向或差速制动中的一个或多个。

6. 发明申请

US20080195280A1 Vehicle Lateral Control System 有权
标题翻译：车辆侧向控制系统
公开(公告)号：US20080195280A1
公开(公告)日：2008-08-14
申请号：US11838032
申请日：2007-08-13
申请人： Weiwen Deng , Yong H. Lee
发明人： Weiwen Deng , Yong H. Lee
IPC分类号： B60W30/02
CPC分类号： B60T8/1755 , B60T2220/02 , B60T2230/02 , B60T2260/08 , B60T2270/86
摘要： A vehicle lateral control system that integrates both vehicle dynamics and kinematics control. The system includes a driver interpreter that provides desired vehicle dynamics and predicted vehicle path based on driver input. Error signals between the desired vehicle dynamics and measured vehicle dynamics, and between the predicted vehicle path and the measured vehicle target path are sent to dynamics and kinematics control processors for generating a separate dynamics and kinematics command signals, respectively, to minimize the errors. The command signals are integrated by a control integration processor to combine the commands to optimize the performance of stabilizing the vehicle and tracking the path. The integrated command signal can be used to control one or more of front wheel assist steering, rear-wheel assist steering or differential braking.
摘要翻译：一种整合车辆动力学和运动学控制的车辆横向控制系统。该系统包括一个基于驾驶员输入提供所需车辆动力学和预测车辆路径的驾驶员解释器。将所需的车辆动力学和测量的车辆动力学之间以及预测的车辆路径和测量的车辆目标路径之间的误差信号发送到动力学和运动学控制处理器，以分别产生单独的动力学和运动学命令信号以使误差最小化。命令信号由控制集成处理器集成，以组合命令来优化稳定车辆和跟踪路径的性能。集成指令信号可用于控制前轮辅助转向，后轮辅助转向或差速制动中的一个或多个。

7. 发明授权

US07269489B2 Adaptive rear-wheel steer open-loop control for vehicle-trailer system 有权
标题翻译：适用于车拖系统的后轮转向开环控制
公开(公告)号：US07269489B2
公开(公告)日：2007-09-11
申请号：US11106102
申请日：2005-04-14
申请人： Weiwen Deng , Yong H. Lee , Ming Tian
发明人： Weiwen Deng , Yong H. Lee , Ming Tian
IPC分类号： B62D13/00
CPC分类号： B62D7/159 , B62D13/00
摘要： A rear-wheel steering control system for a vehicle/trailer combination that adaptively changes an open-loop feed-forward command signal for different trailers or the same trailer with different configurations based only on vehicle parameters. The system includes a hand-wheel sensor for providing a hand-wheel angle signal of a hand-wheel position of the vehicle, a vehicle speed sensor for providing a vehicle speed signal of the vehicle, and a vehicle yaw rate sensor for providing a measured vehicle yaw rate signal of the vehicle. The system also determines if a vehicle yaw rate has reached a steady state and uses the steady-state yaw rate signal to calculate the rear-wheel steering command. In one embodiment, the system updates feed-forward rear/front values for a plurality of predetermined vehicle speeds when determining the proper rear-wheel steering command.
摘要翻译：一种用于车辆/拖车组合的后轮转向控制系统，其仅基于车辆参数自适应地改变用于不同拖车或相同拖车的开环前馈命令信号，具有不同配置。该系统包括用于提供车辆手轮位置的手轮角度信号的手轮传感器，用于提供车辆的车辆速度信号的车辆速度传感器以及用于提供测量到的车辆角度信号的车辆横摆角速度传感器车辆偏航率信号。该系统还确定车辆横摆角速度是否已经达到稳定状态并且使用稳态偏航率信号来计算后轮转向命令。在一个实施例中，当确定正确的后轮转向命令时，系统更新多个预定车速的前馈后/前值。

8. 发明授权

US06838979B2 Vehicle-trailer backing up jackknife detection and warning system 失效
标题翻译：车载拖车检查和报警系统
公开(公告)号：US06838979B2
公开(公告)日：2005-01-04
申请号：US10435209
申请日：2003-05-09
申请人： Weiwen Deng , Yong H. Lee , Yuen-Kwok Chin
发明人： Weiwen Deng , Yong H. Lee , Yuen-Kwok Chin
IPC分类号： B62D13/06 , B62D15/02 , G08B21/00
CPC分类号： B62D13/06 , B62D15/028
摘要： This invention provides a system to detect in real time the condition of jackknifing tendency during vehicle-trailer backing up, and to provide steering direction assistance. The system utilizes rates of change of a vehicle-trailer articulation angle to determine a critical articulation angle.

9. 发明授权

US5602594A Buffer control apparatus for compression of video intraframes 失效
标题翻译：用于压缩视频帧内的缓冲器控制装置
公开(公告)号：US5602594A
公开(公告)日：1997-02-11
申请号：US289566
申请日：1994-08-12
申请人： Sung K. Cho , Yong H. Lee , Joon P. Chang , Choon Lee
发明人： Sung K. Cho , Yong H. Lee , Joon P. Chang , Choon Lee
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/36
CPC分类号： H04N19/87 , H04N19/124 , H04N19/142 , H04N19/176 , H04N19/179 , H04N19/503 , H04N19/60 , H04N19/146 , H04N19/152
摘要： An apparatus for controlling a buffer adapted to transmit motion-involving video compressed by use of an intraframe compression coding technique employing discrete cosine transform and variable length coding to a constant rate channel, wherein a statistical feed-forward-based buffer control apparatus having a simple construction is combined with an existing statistical feed-back-based buffer control apparatus, thereby being capable of stably controlling a buffer even when a scene change occurs, and reducing the capacity of the buffer and the length of a tape needed. The apparatus includes an encoder for encoding input video data to be compressed, and a feed-forward-based division factor selector for receiving an output signal from the encoder, calculating the complexity of each frame based on the received signal, estimating the quantity of data to be generated by units of a predetermined number of discrete cosine transform blocks, and sending a division factor corresponding to the estimated quantity of data to the encoder.
摘要翻译：一种用于控制缓冲器的装置，其适用于通过使用对于恒定速率信道采用离散余弦变换和可变长度编码的帧内压缩编码技术来发送包含视频的视频压缩，其中基于统计前馈的缓冲器控制装置具有简单结构与现有的基于统计反馈的缓冲器控制装置组合，从而即使当场景变化发生时也能够稳定地控制缓冲器，并且减少缓冲器的容量和所需的磁带的长度。该装置包括用于编码要压缩的输入视频数据的编码器和用于从编码器接收输出信号的前馈分频因子选择器，基于接收到的信号计算每帧的复杂度，估计数据量由预定数量的离散余弦变换块的单位产生，并将与估计的数据量相对应的分频因子发送到编码器。

10. 发明授权

US5571343A Austenitic stainless steel having superior press-formability, hot workability and high temperature oxidation resistance, and manufacturing process therefor 失效
标题翻译：具有优异的压制成型性，热加工性和耐高温氧化性的奥氏体不锈钢及其制造方法
公开(公告)号：US5571343A
公开(公告)日：1996-11-05
申请号：US416875
申请日：1995-04-19
申请人： Do Y. Ryoo , Yong H. Lee , Jae S. Park , Hyun C. Kim , Eung J. Kim
发明人： Do Y. Ryoo , Yong H. Lee , Jae S. Park , Hyun C. Kim , Eung J. Kim
IPC分类号： C21D8/00 , C22C38/00 , C22C38/40 , C22C38/42 , C22C38/58
CPC分类号： C22C38/42
摘要： An austenitic stainless steel and a manufacturing process therefor are disclosed, in which, instead of the expensive Ni, there are added Cu as an austenite (.tau.) stabilizing element, and tiny amounts of Ti as a ferrite forming element and B for improvement of high temperature hot workability, so that the optimum Md.sub.30 temperature and the optimum delta-ferrite content can be controlled, thereby improving the formability, the season cracking resistance, the hot workability and the high temperature oxidation resistance, and reducing the surface defects during the hot rolling and saving the manufacturing cost by reducing the content of Ni. The austenitic stainless steel according to the present invention includes in weight %: less than 0.07% of C, less than 1.0% of Si, less than 2.0% of Mn, 16-18% of Cr, 6.0-8.0% of Ni, less than 0.005% of Al, less than 0.05% of P, less than 0.005% of S, less than 0.03% of Ti, less than 0.003% of B, less than 3.0% of Cu, less than 0.3% of Mo, less than 0.1% of Nb, less than 0.045% of N, the balance of Fe, and other indispensable impurities. Thus the present invention improves the press formability, the season cracking resistance, the hot workability, and the high temperature oxidation resistance.
摘要翻译：公开了一种奥氏体不锈钢及其制造方法，其中代替昂贵的Ni，添加了作为奥氏体（tau）稳定化元素的Cu和少量的作为铁素体形成元素的Ti和用于提高高分子量的B 可以控制最佳Md30温度和最佳δ铁素体含量，从而提高成型性，耐季节性，耐热加工性和高温抗氧化性，并降低热轧过程中的表面缺陷，通过减少Ni的含量来节省制造成本。根据本发明的奥氏体不锈钢的重量％：C：小于0.07％，小于1.0％的Si，小于2.0的Mn，16-18％的Cr，6.0-8.0％的Ni，更少的超过0.005％的Al，小于0.05％的P，小于0.005％的S，小于0.03％的Ti，小于0.003％的B，小于3.0的Cu，小于0.3％的Mo，小于 0.1％的Nb，小于0.045％的N，余量的Fe和其它不可缺少的杂质。因此，本发明提高了冲压成型性，耐季节性，耐热加工性和耐高温氧化性。

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