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Regulator device and method for operating a regulator device

A technology for regulating devices and regulators, which is applied in control/regulation systems, electric fluid pressure control, fluid pressure control, etc., and can solve problems such as the instability of the regulation loop and the amplification and change of the open loop.

Inactive Publication Date: 2008-05-28
HYDAC ELECTRONICS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main problem in currently known operating methods of pressure regulation is that due to load variations the amplification of the open loop changes significantly, which in current technology can lead to instability of the closed regulation loop
Often, high demands are placed on the regulation quality over the entire operating range of the pump, which these methods do not adequately meet

Method used

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  • Regulator device and method for operating a regulator device
  • Regulator device and method for operating a regulator device
  • Regulator device and method for operating a regulator device

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Embodiment Construction

[0013] If the solution according to the invention is used for so-called pressure regulation operation, the regulator shown in the figure is constructed in the form of a linear or non-linear regulator, and is preferably equipped with compensation for disturbance effects, and with non-linear and A linear monitor (load estimator) implementation. output, such as p actuator ,α,ω,p 1 used as the state variable (state x ), where p actuator It should correspond to the pressure in the adjustment cylinder, α is the rotation angle, ω is the rotation angular velocity, p 1 Corresponds to the pump or load pressure at the output of the consuming load. P with scale factor actuator Can correspond to fluid quantity q actuator , which, as shown in the figure, proceeds from the actuator to the axial piston pump via a spring-loaded slave cylinder (not shown). Preferably, an axial piston pump with an adjustable rotary disc is used, the load of which acts as a "fluid choke" for the fluid circ...

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Abstract

The invention relates to a regulator device, preferably as a component of a hydraulic circuit, in particular for regulating fluid-bearing units or units that are driven using a fluid, such as adjustable fluid pumps, which respectively co-operate with at least one actuator, which can be controlled by means of at least one governor in accordance with a predefinable guide variable (pd), said governor detecting output variables (alpha,pI) at least partially via a recirculation line. The fact that at least one recirculation line comprises at least one monitor (estimator), which estimates the output variables (condition x) that are at least in part unknown for the assignable governor, enables the provision of a regulator device, in which the governor comprises a linear or non-linear monitor for estimating the unknown load. Said regulator device continuously monitors the load, (load volumetric flow), independently of the regulation type, (volumetric and / or pressure regulation) and its implementation, (in analogous or discrete form), in order to regulate the operation in a dynamic, precise manner (devoid of spikes).

Description

technical field [0001] The invention relates to a regulating device, preferably as part of a hydraulic circuit, and also to a method of operating a regulator, in particular for regulating a fluid delivery device or a fluid-driven device, respectively cooperating with an actuator, such as an adjustable fluid A pump, wherein the actuator is controllable by at least one regulator according to a definable guide variable, the regulator collecting at least part of the output of the controlled system through at least one feedback. Background technique [0002] DE 41 35 277 C2 discloses a regulating device for an adjustable hydraulic pump, wherein the delivery volume of the hydraulic pump can be varied by an actuating device, the regulating device has at least two regulators actuated by the actuating device, and is provided with at least A hydraulic switching element that automatically connects the regulator to the actuating device, which provides the corresponding highest or lowest...

Claims

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Application Information

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IPC IPC(8): F04B49/06G05D16/20
CPCF04B49/065G05D16/2066
Inventor 约阿希姆·莫施弗兰茨·福克斯舒默安德烈亚斯·库吉
Owner HYDAC ELECTRONICS GMBH
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