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1. 发明授权

EP2251750B1 Metering valve arrangement 有权
公开(公告)号：EP2251750B1
公开(公告)日：2018-08-15
申请号：EP10250824.9
申请日：2010-04-24
申请人： Goodrich Control Systems
发明人： Singh, Gurlat , Horne, Alexander James
IPC分类号： G05B9/02 , F16K3/06 , F16K37/00 , F02C9/26 , G05B7/02
CPC分类号： F16K3/06 , F02C9/263 , F16K37/00 , G05B7/02 , G05B9/02 , Y10T137/0318 , Y10T137/8242
摘要： A method is described for controlling the operation of a metering valve (10) driven by a stepper motor (24), a position sensor (30) normally providing position information to allow control over the metering valve (10) in a closed loop manner. The method comprises the steps of: performing a calibration operation to derive a relationship between stepper motor position and metering valve position; controlling the operation of the metering valve (10) in a closed loop manner; and controlling the operation of the metering valve (10) in an open loop manner in the event that the position sensor output is thought to be unreliable; wherein, when operating in the open loop manner, the metering valve (10) is moved to a desired angular position by using the relationship derived in the calibration operation to determine the stepper motor position associated with the desired metering valve position and moving the stepper motor (24) to the determined stepper motor position.

2. 发明公开

EP2251750A3 Metering valve arrangement 有权
标题翻译：阀结构
公开(公告)号：EP2251750A3
公开(公告)日：2011-02-23
申请号：EP10250824.9
申请日：2010-04-24
申请人： Goodrich Control Systems
发明人： Singh, Gurlat , Horne, Alexander James
IPC分类号： G05B9/02
CPC分类号： F16K3/06 , F02C9/263 , F16K37/00 , G05B7/02 , G05B9/02 , Y10T137/0318 , Y10T137/8242
摘要： A method is described for controlling the operation of a metering valve (10) driven by a stepper motor (24), a position sensor (30) normally providing position information to allow control over the metering valve (10) in a closed loop manner. The method comprises the steps of:
performing a calibration operation to derive a relationship between stepper motor position and metering valve position;
controlling the operation of the metering valve (10) in a closed loop manner; and
controlling the operation of the metering valve (10) in an open loop manner in the event that the position sensor output is thought to be unreliable; wherein, when operating in the open loop manner, the metering valve (10) is moved to a desired angular position by using the relationship derived in the calibration operation to determine the stepper motor position associated with the desired metering valve position and moving the stepper motor (24) to the determined stepper motor position.

3. 发明公开

EP2251750A2 Metering valve arrangement 有权
标题翻译： Messventilanordnung
公开(公告)号：EP2251750A2
公开(公告)日：2010-11-17
申请号：EP10250824.9
申请日：2010-04-24
申请人： Goodrich Control Systems
发明人： Singh, Gurlat , Horne, Alexander James
IPC分类号： G05B9/02
CPC分类号： F16K3/06 , F02C9/263 , F16K37/00 , G05B7/02 , G05B9/02 , Y10T137/0318 , Y10T137/8242
摘要： A method is described for controlling the operation of a metering valve (10) driven by a stepper motor (24), a position sensor (30) normally providing position information to allow control over the metering valve (10) in a closed loop manner. The method comprises the steps of:
performing a calibration operation to derive a relationship between stepper motor position and metering valve position;
controlling the operation of the metering valve (10) in a closed loop manner; and
controlling the operation of the metering valve (10) in an open loop manner in the event that the position sensor output is thought to be unreliable; wherein, when operating in the open loop manner, the metering valve (10) is moved to a desired angular position by using the relationship derived in the calibration operation to determine the stepper motor position associated with the desired metering valve position and moving the stepper motor (24) to the determined stepper motor position.
摘要翻译：描述了一种用于控制由步进电动机（24）驱动的计量阀（10）的操作的方法，位置传感器（30）通常提供位置信息以允许以闭环方式控制计量阀（10）。该方法包括以下步骤：执行校准操作以得出步进电机位置与计量阀位置之间的关系; 以闭环方式控制计量阀（10）的操作; 并且在位置传感器输出被认为是不可靠的情况下以开环方式控制计量阀（10）的操作; 其中当以开环方式操作时，通过使用在校准操作中导出的关系来将计量阀（10）移动到期望的角度位置，以确定与期望的计量阀位置相关联的步进电机位置并移动步进电机（24）到确定的步进电机位置。

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