US 2009/0030546 A1Published application

Apparatus and method for positioning control

AssigneeWah Hong Industrial Corp.

InventorsChih-Ru Lien, Li-Te Kuo

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Abstract

The present invention discloses a positioning control apparatus which receives a moving command and a feedback signal outputted from a controlled device, and controls the controlled device for moving and positioning. The positioning control apparatus includes a first control loop, a second control loop and an arbitration module with a dead point default value, wherein the first control loop is used to control the controlled device moving in response to the error of the moving command and the feedback signal, on the other hand, the second control loop is used to control the controlled device positioning. Furthermore, the arbitration module compares the default value of dead point with the moving command so as to enable either the first control loop or the second control loop.

Claims22

Dependent claims

An apparatus for positioning control, which receives a moving command and a moving feedback signal outputted by a controlled device, in order to control the moving and positioning of the controlled device, the said apparatus comprises:

an arbitration module, which has a dead point default value, and the arbitration module compares the moving command and a moving feedback signal with the dead point default value to output a control signal, and converts the moving command into a moving signal;
a first driving module, which is connected to the arbitration module and the controlled device, in which the first driving module receives the said moving signal and a moving feedback signal to output a first driving signal;
a second driving module, which outputs a second driving signal;
and
a switching module, which is connected to the arbitration module, the first driving module, the second driving module and the controlled device, in which the switching module is controlled by the control signal so as to send either the first driving signal or the second driving signal to the controlled device.

2 more elements

An apparatus for positioning control, which receives a moving command and a moving feedback signal, outputted by a controlled device, in order to control the moving and positioning of the controlled device, the said apparatus comprises:

a first control loop, which is used to control the moving of the controlled device according to the moving command and the moving feedback signal;
a second control loop, which is used to control the positioning of the controlled device;
and
an arbitration module, which has a dead point default value, wherein the arbitration module compares the moving command and the moving feedback signal with the dead point default value, and controls either the first control loop or the second control loop based on the comparison.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 12/214,196Filed 17 Jun 2008
Priority: TW 9612691224 Jul 2007
Published: 29 Jan 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G05B 19/238
For point-to-point control: the positional error is only used to control speed in steps according to distance left, or to give a stop signal when…
G05B 19/29
Using an absolute digital measuring device: for point-to-point control
G05B 19/35
Using an analogue measuring device: for point-to-point control
G05B 2219/42104
Servomotor, servo controller kind till VSS: loop switch, speed loop then position loop, mode switch