ACCELERATION/DECELERATION CONTROL SYSTEM

Title:

ACCELERATION/DECELERATION CONTROL SYSTEM

Document Type and Number:

WIPO Patent Application WO/1986/000730

Kind Code:

A1

Abstract:

An acceleration/deceleration control system works to smoothly control the acceleration and deceleration of an electric motor which drives moving portions of a machine tool or a robot, and has a linear acceleration/deceleration circuit (3) which executes a linear arithmetic operation for acceleration or deceleration upon receipt of interpolation data from a pulse distributor (5), and has, connected in series therewith, an exponential function acceleration/deceleration circuit (4) which executes exponential function arithmetic operation for acceleration or deceleration upon receipt of an output signal from the linear acceleration/deceleration circuit (3). A sudden change in the controlled speed, which is a defect inherent in the linear acceleration/deceleration circuit, is compensated by the exponential function acceleration/deceleration control system, to prevent shock at the moment when the shaft starts to move and during deceleration, and to smoothly and properly control acceleration and deceleration.

More Like This:

JP6301977	Machine tool control device and control method that controls synchronous operation of the spindle and feed shaft
JP2000117796	METHOD FOR CONTROLLING MOVING PROCESS OF MOVABLE MEMBER OF PLASTIC INJECTION MOLDING MACHINE
JPS61183707	POSITION CONTROL DEVICE

Inventors:

NAKASHIMA SEIICHIRO (JP)
TOYODA KENICHI (JP)
SAKAKIBARA SHINSUKE (JP)

Application Number:

PCT/JP1985/000377

Publication Date:

January 30, 1986

Filing Date:

July 04, 1985

Export Citation:

Click for automatic bibliography generation Help

Assignee:

FANUC LTD (JP)

International Classes:

G05B19/416; (IPC1-7): G05B19/407

Foreign References:

JPS4937342A	1974-04-06
JPS4846778A	1973-07-03

Other References: