公开(公告)号：US07544430B2

公开(公告)日：2009-06-09

申请号：US11640073

申请日：2006-12-15

申请人： Manish Sinha ,  Prasad Gade ,  Daniel Difiore

发明人： Manish Sinha ,  Prasad Gade ,  Daniel Difiore

IPC分类号： H01M8/04

CPC分类号： H01M8/04432 ,  H01M8/04089 ,  H01M8/04104 ,  H01M8/04231 ,  H01M8/04462 ,  H01M8/04761 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02T90/32

摘要： A system and method for determining when to provide an anode exhaust gas bleed from a fuel cell stack as the fuel cell stack ages. The method determines the amount of nitrogen flowing from a cathode side to an anode side of the fuel cell stack. The method also determines the amount of nitrogen flowing from the anode side to the cathode side by determining a standard deviation of voltage outputs of the fuel cells, and using the standard deviation as a model for determining the leak rate of nitrogen from the anode side to the cathode side. The method determines the concentration of nitrogen in the anode side based on the nitrogen flow between the cathode and anode side, and opens a bleed valve to bleed the anode exhaust gas if the concentration of nitrogen in the anode side goes above a predetermined value.

摘要翻译： 一种用于当燃料电池堆老化时确定何时提供来自燃料电池堆的阳极废气流出的系统和方法。 该方法确定从燃料电池堆的阴极侧向阳极侧流动的氮的量。 该方法还通过确定燃料电池的电压输出的标准偏差来确定从阳极侧到阴极侧的氮的量，并且使用标准偏差作为用于确定从阳极侧到氮的泄漏率的模型 阴极侧。 该方法基于阴极和阳极侧之间的氮气流量确定阳极侧的氮浓度，并且如果阳极侧的氮浓度超过预定值，则打开放气阀以排出阳极废气。

公开(公告)号：US20060173592A1

公开(公告)日：2006-08-03

申请号：US10696517

申请日：2003-10-29

申请人： Prasad Gade ,  Sanjiv Tewani ,  Thomas Baudendistel

发明人： Prasad Gade ,  Sanjiv Tewani ,  Thomas Baudendistel

IPC分类号： G06F7/00

CPC分类号： F16F13/305 ,  F16F2230/18

摘要： A system and method of controlling engine vibration mounted within a vehicle including at least one hydraulic mount, each mount including a fluid chamber. A pair of accelerometers sense relative acceleration across the mount between the engine and the frame and generate a relative acceleration signal. A control unit is electrically connected to the accelerometers. The control unit is adapted to generate an electronic control signal in response to the relative acceleration signal. The control device is responsive to the electric control signal for controlling the damping force of the hydraulic mount. A control algorithm calibrates the control unit such that maximum vibration damping occurs at and around the engine resonance bounce frequency.

摘要翻译： 一种用于控制安装在车辆内的发动机振动的系统和方法，包括至少一个液压支架，每个支架包括流体室。 一对加速度计感测发动机和车架之间的安装座上的相对加速度，并产生相对的加速度信号。 控制单元电连接到加速度计。 控制单元适于响应于相对加速度信号而产生电子控制信号。 控制装置响应于电控信号以控制液压支架的阻尼力。 控制算法校准控制单元，使发动机谐振反弹频率和周围发生最大振动阻尼。

公开(公告)号：US06721636B1

公开(公告)日：2004-04-13

申请号：US10453120

申请日：2003-06-03

申请人： Prasad Gade

发明人： Prasad Gade

IPC分类号： G06F700

CPC分类号： B60T8/17551 ,  B60T2270/86

摘要： A system and method for unified vehicle dynamics control is described. A method for determining vehicle dynamics data, determining a vehicle dynamics reference model having at least one reference model parameter, and providing the reference model parameter to a closed-loop sliding mode control system is provided. A sliding mode control system substantially maintains the state of reference model parameters based on the vehicle dynamics reference model and the vehicle dynamics data. A method and system is directed to a computer readable medium containing a computer program comprising computer readable code for determining vehicle dynamics data, determining a vehicle dynamics reference model having at least one reference model parameter, and providing the reference model parameter to a closed-loop sliding mode control system.

摘要翻译： 描述了用于统一车辆动力学控制的系统和方法。 提供了一种用于确定车辆动力学数据的方法，确定具有至少一个参考模型参数的车辆动力学参考模型，以及将参考模型参数提供给闭环滑动模式控制系统。 滑动模式控制系统基于车辆动力学参考模型和车辆动力学数据基本上维持参考模型参数的状态。 方法和系统涉及包含计算机程序的计算机可读介质，计算机程序包括用于确定车辆动态数据的计算机可读代码，确定具有至少一个参考模型参数的车辆动力学参考模型，以及将参考模型参数提供给闭环 滑模控制系统。

公开(公告)号：US20080091188A1

公开(公告)日：2008-04-17

申请号：US11623158

申请日：2007-01-15

申请人： Prasad Gade

发明人： Prasad Gade

IPC分类号： A61B18/08 ,  A61B17/00

CPC分类号： A61B18/082 ,  A61B17/0218 ,  A61B17/320016 ,  A61B17/320068 ,  A61B18/1402 ,  A61B2017/320056

摘要： A surgical instrument for creation of tissue dissection and creation of space is disclosed. The instrument may be used any place in the body where a physician could or would use finger or instrument dissection to create a tissue pocket or space. The pocket dissector can be used under direct vision, laparoscopically, endoscopically, under fluoroscopic guidance or blindly.

摘要翻译： 公开了一种用于创建组织解剖和创建空间的手术器械。 该仪器可以在身体中的任何地方使用，医生可以或将使用手指或仪器解剖来创建组织袋或空间。 口腔解剖器可以在直视下，腹腔镜下，内窥镜下，荧光镜引导下或盲目使用。

公开(公告)号：US20070118260A1

公开(公告)日：2007-05-24

申请号：US11284159

申请日：2005-11-21

申请人： Prasad Gade

发明人： Prasad Gade

IPC分类号： B60G17/018

CPC分类号： B60G17/018 ,  B60G17/0182

摘要： A procedure for synthesizing a state-feedback gain matrix for a vehicle suspension system including active suspension components such as continuously variable semi-active dampers is disclosed. Sensors and/or estimation schemes provide feedback to the controller concerning the vehicle states. A set of frequency-weighted metrics are first quantified and used as part of a full car 7 degree of freedom vehicle model to construct a constrained multi-objective optimization problem. Using commercially available software, a mixed H2/H∞ problem is iteratively solved to minimize a set of body control objectives subject to a set of physical control and wheel control related constraints to obtain data, preferably in the form of a plot of the trade-off curve between optimum wheel control and optimum body control. An initial design point is selected from the trade-off curve to calculate a state-feedback gain matrix that provides a reasonable balance between body and wheel control objectives. Additional points may be selected from the trade-off curve to iteratively provide an optimal solution.

摘要翻译： 公开了一种用于合成包括主动悬架部件的车辆悬架系统的状态反馈增益矩阵的过程，所述主动悬架部件例如是连续可变的半主动阻尼器。 传感器和/或估计方案向控制器提供关于车辆状态的反馈。 首先量化一组频率加权度量，并将其用作全车7自由度车辆模型的一部分，以构建受限多目标优化问题。 使用市售的软件，迭代地解决了混合的H 2 / H∞问题，以使经受一组物理控制和车轮控制相关约束的一组身体控制目标最小化 以获得数据，优选地以最佳车轮控制和最佳身体控制之间的折衷曲线的曲线图的形式。 从权衡曲线中选择初始设计点，以计算状态反馈增益矩阵，从而在车身和车轮控制目标之间提供合理的平衡。 可以从权衡曲线中选择附加点，以迭代地提供最优解。