公开(公告)号：US07210749B2

公开(公告)日：2007-05-01

申请号：US10768286

申请日：2004-01-30

申请人： Yuhong Zheng ,  Danny R. Milot

发明人： Yuhong Zheng ,  Danny R. Milot

IPC分类号： B60T8/34

CPC分类号： B60T8/326 ,  B60T8/36 ,  B60T8/3655 ,  B60T8/4072

摘要： An electrohydraulic brake system where brake pressure is controlled by the combined action of an apply valve and a dump valve by the implementation of a method of controlling the voltage applied to the apply and dump valve. The EHB pressure control system receives a desired wheel pressure command and, with a caliper pressure feedback signal, implements an algorithm to compute one voltage command for the apply valve and another for the dump valve, corresponding to a requested flow from the hydraulics. The voltage command drives current control electronics. The electronics in turn power the solenoids of the proportional apply and dump poppet valves to control flow in or out of the brakes and modulate wheel pressure as required. Use of the algorithm to control the electromagnetic poppet valves achieves the commanded pressure at a vehicle's brakes reliably and with good control in all states of flow through the valve. The algorithm is a function of the existing pressure within the system and whether there is bulk or leakage flow through the valves.

摘要翻译： 一种电动液压制动系统，其中通过实施一种控制施加到排放阀的电压的方法，通过施加阀和排放阀的组合作用来控制制动压力。 EHB压力控制系统接收期望的车轮压力命令，并且利用制动钳压力反馈信号，实现一种算法，以计算应用阀的一个电压指令，另一个用于排放阀，对应于来自液压的所请求的流量。 电压指令驱动电流控制电子设备。 电子设备又为比例应用和倾倒提升阀的螺线管供电，以控制进出制动器的流量，并根据需要调节车轮压力。 使用该算法来控制电磁提升阀，可以可靠地实现车辆制动时的指令压力，并且能够良好地控制通过阀门的所有流动状态。 该算法是系统内现有压力的函数，以及是否存在通过阀门的体积或泄漏流量。

公开(公告)号：US06634722B1

公开(公告)日：2003-10-21

申请号：US09919445

申请日：2001-07-31

申请人： Yuhong Zheng ,  Danny R. Milot

发明人： Yuhong Zheng ,  Danny R. Milot

IPC分类号： B60T834

CPC分类号： B60T8/326 ,  B60T8/36 ,  B60T8/3655 ,  B60T8/4072

摘要： An electrohydraulic brake system where brake pressure is controlled by the combined action of an apply valve and a dump valve by the implementation of a method of controlling the voltage applied to the apply and dump valve. The EHB pressure control system receives a desired wheel pressure command and, with a caliper pressure feedback signal, implements an algorithm to compute one voltage command for the apply valve and another for the dump valve. The solenoids of the proportional apply and dump poppet valves are operated to control flow in or out of the brakes and modulate wheel pressure as required. The algorithm is used to control the electromagnetic poppet valves in all states of flow through the valve. The algorithm is a function of the existing pressure within the system and whether there is bulk or leakage flow through the valves.

摘要翻译： 一种电动液压制动系统，其中通过实施一种控制施加到排放阀的电压的方法，通过施加阀和排放阀的组合作用来控制制动压力。 EHB压力控制系统接收期望的车轮压力命令，并且利用制动钳压力反馈信号，实施算法来计算施加阀的一个电压指令，另一个用于排放阀。 操作比例应用和倾倒提升阀的螺线管，以控制进出制动器的流量，并根据需要调节车轮压力。 该算法用于控制通过阀门的所有流动状态的电磁提升阀。 该算法是系统内现有压力的函数，以及是否存在通过阀门的体积或泄漏流量。

公开(公告)号：US06692088B1

公开(公告)日：2004-02-17

申请号：US09965103

申请日：2001-09-26

申请人： Yuhong Zheng

发明人： Yuhong Zheng

IPC分类号： B60T834

CPC分类号： B60T8/326 ,  B60T8/36 ,  B60T8/3655

摘要： A method of boundary self-adaptation for proportional poppet valve pressure control comprises implementing an estimator to estimate a boundary deviation of the valve. Then, a pressure command signal is detected. Next, a pressure command derivative over time is obtained. Then, determining which closing boundary should be updated is decided based on the sign of the pressure command derivative. Next, a pressure error is obtained by subtracting an actual wheel brake pressure from its pressure command. Then a modified pressure error is calculated. Next, a pressure command signal is evaluated to determine whether a braking maneuver is gentle. Next, the modified pressure error is implemented in the estimation. Finally, a boundary table is updated using the resultant boundary deviation estimate.

摘要翻译： 用于比例提升阀压力控制的边界自适应方法包括实现估计器以估计阀的边界偏差。 然后，检测压力指令信号。 接下来，获得随时间的压力指令导数。 然后，基于压力指令导数的符号来确定应当更新哪个关闭边界。 接下来，通过从其压力指令减去实际的车轮制动压力来获得压力误差。 然后计算修改的压力误差。 接下来，评估压力指令信号，以确定制动操作是否平缓。 接下来，在估计中实现修改的压力误差。 最后，使用所得到的边界偏差估计来更新边界表。

公开(公告)号：US08121770B2

公开(公告)日：2012-02-21

申请号：US11825211

申请日：2007-07-05

申请人： Yuhong Zheng

发明人： Yuhong Zheng

IPC分类号： G06F7/00 ,  G05D1/00

CPC分类号： B60T8/36 ,  B60T8/326 ,  B60T8/3655 ,  G05D16/2013 ,  Y10T477/6936

摘要： A method for adapting a closing boundary for a proportional spool valve includes generating or detecting a pressure command signal. Next a pressure error is obtained by subtracting an actual wheel brake pressure from its pressure command. Then a modified pressure error is calculated a modified pressure error is calculated in such a way that steady state pressure errors resulting from mismatched feedforward term, control deadzone and other factors are subtracted from measured pressure error to leave the only error to be that due to boundary deviation. An estimator is then used to estimate an apply boundary deviation or a release boundary deviation of the spool valve, as appropriate. A boundary table is updated using the resultant boundary deviation estimate.

摘要翻译： 用于调整比例滑阀的关闭边界的方法包括产生或检测压力指令信号。 接下来，通过从其压力指令中减去实际的车轮制动压力来获得压力误差。 然后计算改进的压力误差，以这样的方式计算修正的压力误差，即从测量的压力误差中减去由误差前馈项，控制死区和其他因素产生的稳态压力误差，使唯一的误差为由边界引起的误差 偏差。 然后，使用估计器来酌情估计滑阀的应用边界偏差或释放边界偏差。 使用所得到的边界偏差估计来更新边界表。

公开(公告)号：US20070276575A1

公开(公告)日：2007-11-29

申请号：US11825211

申请日：2007-07-05

申请人： Yuhong Zheng

发明人： Yuhong Zheng

IPC分类号： B60T8/38 ,  G05D7/00

CPC分类号： B60T8/36 ,  B60T8/326 ,  B60T8/3655 ,  G05D16/2013 ,  Y10T477/6936

摘要： A method for adapting a closing boundary for a proportional spool valve includes generating or detecting a pressure command signal. Next a pressure error is obtained by subtracting an actual wheel brake pressure from its pressure command. Then a modified pressure error is calculated a modified pressure error is calculated in such a way that steady state pressure errors resulting from mismatched feedforward term, control deadzone and other factors are subtracted from measured pressure error to leave the only error to be that due to boundary deviation. An estimator is then used to estimate an apply boundary deviation or a release boundary deviation of the spool valve, as appropriate. A boundary table is updated using the resultant boundary deviation estimate

摘要翻译： 用于调整比例滑阀的关闭边界的方法包括产生或检测压力指令信号。 接下来，通过从其压力指令中减去实际的车轮制动压力来获得压力误差。 然后计算改进的压力误差，以这样的方式计算修正的压力误差，即从测量的压力误差中减去由误差前馈项，控制死区和其他因素产生的稳态压力误差，使唯一的误差为由边界引起的误差 偏差。 然后，使用估计器来酌情估计滑阀的应用边界偏差或释放边界偏差。 使用所得到的边界偏差估计来更新边界表

公开(公告)号：US20100174437A1

公开(公告)日：2010-07-08

申请号：US12094408

申请日：2006-12-15

申请人： Robert Leon Benedict ,  Seiburn Ben Choi ,  Kenneth Alan Doll ,  Jon William Kindseth ,  Alan Ka Yan Lo ,  Danny Robert Milot ,  Arnold Herman Spieker ,  Sunder Shesha Venkat Vaduri ,  Yuhong Zheng

发明人： Robert Leon Benedict ,  Seiburn Ben Choi ,  Kenneth Alan Doll ,  Jon William Kindseth ,  Alan Ka Yan Lo ,  Danny Robert Milot ,  Arnold Herman Spieker ,  Sunder Shesha Venkat Vaduri ,  Yuhong Zheng

IPC分类号： G06F7/00

CPC分类号： B60T8/1725 ,  B60T8/17551 ,  B60T2230/02 ,  B60T2240/03

摘要： Vehicle properties are determined by providing both actual and real-time data of the tires to the vehicle control system. The data includes both static and dynamic tire data. The properties are determined by the following steps: a) putting a vehicle in motion, the vehicle being provided with a set of tires and a vehicle control system wherein at least one tire has means to communicate with the vehicle control system and the vehicle control system has a processor, a vehicle observer, and a preprogrammed vehicle model; b) sending either static or dynamic tire information from the tire to the vehicle control system via the tire communication means; and c) estimating a vehicle property using the received tire information.

摘要翻译： 车辆属性是通过向车辆控制系统提供轮胎的实时数据和实时数据来确定的。 数据包括静态和动态轮胎数据。 性能由以下步骤确定：a）将车辆放置在运动中，车辆设置有一组轮胎和车辆控制系统，其中至少一个轮胎具有与车辆控制系统和车辆控制系统通信的装置 具有处理器，车辆观察者和预编程车辆模型; b）通过轮胎通信装置将轮胎信息从轮胎发送到车辆控制系统; 以及c）使用所接收的轮胎信息来估计车辆属性。

公开(公告)号：US06980925B2

公开(公告)日：2005-12-27

申请号：US10678537

申请日：2003-10-03

申请人： Yuhong Zheng ,  Danny Milot

发明人： Yuhong Zheng ,  Danny Milot

IPC分类号： B60C23/06 ,  G01G19/03 ,  G01G19/04 ,  G06F15/00

CPC分类号： B60C23/064 ,  B60C23/0488

摘要： A system for real-time signal processing for vehicle monitoring, including a first device disposed in a tire of a vehicle and producing a signal that is a function of a tire contact time period, during which a point at the tire circumference stays in contact with the ground, and a second device operative to repetitively perform a first task of processing the signal to calculate the tire contact time period at a first predetermined rate, and to repetitively perform a second task of calculating a tire load based at least in part upon the calculated tire contact time period at a second predetermined rate, wherein said second predetermined rate is less than said first predetermined rate.

摘要翻译： 一种用于车辆监控的实时信号处理系统，包括设置在车辆的轮胎中的第一装置，并且产生作为轮胎接触时间段的函数的信号，在该期间轮胎周围的点保持与 以及第二装置，其可操作以重复地执行处理所述信号的第一任务，以第一预定速率计算轮胎接触时间周期，并且至少部分地基于所述第二任务来重复执行计算轮胎负载的第二任务 以第二预定速率计算轮胎接触时间段，其中所述第二预定速率小于所述第一预定速率。

公开(公告)号：US20050110337A1

公开(公告)日：2005-05-26

申请号：US10721308

申请日：2003-11-25

申请人： Yuhong Zheng ,  Danny Milot

发明人： Yuhong Zheng ,  Danny Milot

IPC分类号： B60T8/32 ,  B60T8/40 ,  B60T8/88 ,  B60T13/16

CPC分类号： B60T8/326 ,  B60T8/4072 ,  B60T8/88

摘要： A method of controlling pressure in a fluid system having a source of pressurized fluid for which a maximum desired fluid pressure value has been determined, a hydraulic load, an apply valve controlling pressurized fluid flow between the source and the load, and a release valve permitting fluid flow from the load to a low pressure reservoir. Pressure is controlled at the hydraulic load by at least one of closing the release valve and opening the apply valve to increase pressure at the hydraulic load, and by at least one of closing the apply valve and opening the release valve to reduce pressure at the hydraulic load. Simultaneously, pressure of the source of pressurized fluid is limited by opening both the apply valve and the release valve from the positions required to control pressure at the hydraulic load a sufficient amount to permit pressurized fluid from the source of pressurized fluid to flow through the apply valve and the release valve to the low pressure reservoir at a flow rate sufficient to limit pressure of the source of pressurized fluid to less than the maximum desired fluid pressure value.

摘要翻译： 一种控制流体系统中的压力的​​方法，所述流体系统具有已经确定了最大期望流体压力值的加压流体源，液压负载，控制源和负载之间的加压流体流的施加阀，以及释放阀允许 流体从负载流向低压储层。 通过关闭释放阀和打开施加阀以增加液压负载上的压力以及通过关闭施加阀和打开释放阀中的至少一个以降低液压压力中的至少一个来将压力控制在液压负载 加载。 同时，加压流体源的压力通过打开施加阀和释放阀从限制液压载荷下的压力所需的位置来限制，以允许来自加压流体源的加压流体流过应用 阀和释放阀以足以将加压流体源的压力限制在小于最大期望流体压力值的流量的低压储存器。

公开(公告)号：US20050075825A1

公开(公告)日：2005-04-07

申请号：US10678537

申请日：2003-10-03

申请人： Yuhong Zheng ,  Danny Milot

发明人： Yuhong Zheng ,  Danny Milot

IPC分类号： B60C23/06 ,  F03D9/00

CPC分类号： B60C23/064 ,  B60C23/0488

摘要： A system for real-time signal processing for vehicle monitoring, including a first device disposed in a tire of a vehicle and producing a signal that is a function of a tire contact time period, during which a point at the tire circumference stays in contact with the ground, and a second device operative to repetitively perform a first task of processing the signal to calculate the tire contact time period at a first predetermined rate, and to repetitively perform a second task of calculating a tire load based at least in part upon the calculated tire contact time period at a second predetermined rate, wherein said second predetermined rate is less than said first predetermined rate.