公开(公告)号：US08301275B2

公开(公告)日：2012-10-30

申请号：US12794109

申请日：2010-06-04

Applicant: Flavio Tondolo ,  Roberto Valoti

Inventor： Flavio Tondolo ,  Roberto Valoti

IPC: G05B13/02

CPC classification number: G05B11/42 ,  G05B13/024 ,  G05B2219/42125

Abstract: A method and device for controlling a process variable based upon a set point is disclosed. A process variable is measured, and a proportional term is assigned to a manipulated variable that is based upon a product of a proportional gain coefficient and an error magnitude between the process variable and the set point. An integral term is added to the manipulated variable under a first set of conditions, and a derivative term is added to the manipulated variable under a second set of conditions different from the first set of conditions. The sum of the proportional term, the integral term, and the derivative term is output, resulting in the process variable being responsively adjusted thereto.

Abstract translation: 公开了一种基于设定点来控制过程变量的方法和装置。 测量过程变量，并将比例项分配给基于比例增益系数与过程变量与设定点之间的误差大小的乘积的操作变量。 在第一组条件下将积分项添加到操纵变量中，并且在与第一组条件不同的第二组条件下将衍生项添加到操纵变量。 输出比例项，积分项和微分项的和，从而对过程变量进行响应性调整。

公开(公告)号：US20110284083A1

公开(公告)日：2011-11-24

申请号：US12784790

申请日：2010-05-21

Applicant: Flavio Tondolo ,  Roberto Valoti

Inventor： Flavio Tondolo ,  Roberto Valoti

IPC: F16K31/124

CPC classification number: F15B20/002 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/862 ,  F15B2211/8752 ,  Y10T137/0318

Abstract: A fail-freeze valve positioner system is disclosed. The system has a transducer with a first type output port connectible to a valve actuator, and a second type input port receptive to a valve position signal that is proportional to an output of the first type output port. In addition, the system has a monitoring circuit that generates a pilot activation signal while predefined conditions are met. A primary piloted valve in communication with the monitoring circuit is coupled to the first valve. The first type output port is disconnected from the valve actuator while the pilot activation signal and thus the first valve are deactivated, holding the valve actuator in place.

Abstract translation: 公开了一种故障停止阀定位器系统。 该系统具有可连接到阀致动器的第一类型输出端口的传感器，以及接受与第一类型输出端口的输出成比例的阀位置信号的第二类型输入端口。 此外，该系统具有监测电路，其产生导频激活信号，同时满足预定义的条件。 与监控电路连通的主导阀连接到第一阀。 第一种类型的输出端口与阀门致动器断开，同时先导启动信号和第一阀门被停用，将阀门执行器保持在适当位置。

公开(公告)号：US08517335B2

公开(公告)日：2013-08-27

申请号：US12784790

申请日：2010-05-21

Applicant: Flavio Tondolo ,  Roberto Valoti

Inventor： Flavio Tondolo ,  Roberto Valoti

IPC: F16K31/02

CPC classification number: F15B20/002 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/862 ,  F15B2211/8752 ,  Y10T137/0318

Abstract: A fail-freeze valve positioner system is disclosed. The system has a transducer with a first type output port connectible to a valve actuator, and a second type input port receptive to a valve position signal that is proportional to an output of the first type output port. In addition, the system has a monitoring circuit that generates a pilot activation signal while predefined conditions are met. A primary piloted valve in communication with the monitoring circuit is coupled to the first valve. The first type output port is disconnected from the valve actuator while the pilot activation signal and thus the first valve are deactivated, holding the valve actuator in place.

Abstract translation: 公开了一种故障停止阀定位器系统。 该系统具有可连接到阀致动器的第一类型输出端口的传感器，以及接受与第一类型输出端口的输出成比例的阀位置信号的第二类型输入端口。 此外，该系统具有监测电路，其产生导频激活信号，同时满足预定义的条件。 与监控电路连通的主导阀连接到第一阀。 第一种类型的输出端口与阀门致动器断开，同时先导启动信号和第一阀门被停用，将阀门执行器保持在适当位置。

公开(公告)号：US20110301724A1

公开(公告)日：2011-12-08

申请号：US12794109

申请日：2010-06-04

Applicant: Flavio Tondolo ,  Roberto Valoti

Inventor： Flavio Tondolo ,  Roberto Valoti

IPC: G05B13/02

CPC classification number: G05B11/42 ,  G05B13/024 ,  G05B2219/42125

Abstract: A method and device for controlling a process variable based upon a set point is disclosed. A process variable is measured, and a proportional term is assigned to a manipulated variable that is based upon a product of a proportional gain coefficient and an error magnitude between the process variable and the set point. An integral term is added to the manipulated variable under a first set of conditions, and a derivative term is added to the manipulated variable under a second set of conditions different from the first set of conditions. The sum of the proportional term, the integral term, and the derivative term is output, resulting in the process variable being responsively adjusted thereto.

Abstract translation: 公开了一种基于设定点来控制过程变量的方法和装置。 测量过程变量，并将比例项分配给基于比例增益系数与过程变量与设定点之间的误差大小的乘积的操作变量。 在第一组条件下将积分项添加到操纵变量中，并且在与第一组条件不同的第二组条件下将衍生项添加到操纵变量。 输出比例项，积分项和微分项的和，从而对过程变量进行响应性调整。