Title :
Adaptive s-curve acceleration/deceleration control method
Author :
Zheng, Kuijing ; Cheng, Li
Author_Institution :
Robot. Res. Center, Yanshan Univ., Qinhuangdao
Abstract :
In high-speed machining process, in order to improve the machining accuracy, the velocity should be optimized flexibly in advance. The s-curve acceleration and deceleration control mode was more used in velocity control than others. Based on the essential principle of the s-curve acceleration and deceleration control mode, the pre-interpolation acceleration and deceleration control was adopted to work out the relevant motional parameters of different program blocks. Using the look-ahead method, the adaptive acceleration and deceleration was introduced to evaluate the data far in advance and adjust the feed rate. The adaptive velocity control method is simulated and the result shows that the velocity curve is smoother and the machining time is shorter than traditional method. The velocity control of NC machining is solved effectively and the machining accuracy and productivity will be improved greatly.
Keywords :
acceleration control; adaptive control; computerised numerical control; curve fitting; interpolation; machine tools; machining; velocity control; CNC system; adaptive s-curve acceleration control; adaptive s-curve deceleration control; high-speed machining process; look-ahead method; motional parameter; pre-interpolation; productivity; velocity control; Acceleration; Adaptive control; Computer numerical control; Intelligent control; Machining; Motion control; Programmable control; Robot kinematics; Robotics and automation; Velocity control; Computerized Numerical Control system; S-curve acceleration/deceleration; adaptive control;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4593360