基于自适应前瞻和预测校正的实时柔性加减速控制算法

为了提高离散小线段的加工效率和质量，提出一种实时柔性加减速控制算法。该算法由三部分组成：前瞻处理部分利用加减速可行性判断条件，保证加减速可达和实时前瞻；速度规划部分在保证速度和加速度连续变化的条件下，实时计算下一插补周期的进给速度；动态修调部分对当前速度规划结果进行调整，及时响应加工中机床参数的改变。实验结果表明，该算法能够实现数控系统的实时柔性加减速控制，支持动态修调，满足实际加工的要求。

Real-time Flexible Acceleration and Deceleration Control Algorithm Based onAdaptive Look-ahead and Predictor-corrector Method

To improve high-speed and high-quality machining of continuous line segments, a novel real-time flexible acceleration and deceleration control algorithm was proposed. This algorithm contained three parts: the acceleration-deceleration feasibility and real-time forward-looking function were guaranteed in look-ahead processes with acc-dec feasibility conditions; the velocity planning module calculated next feedrate with smooth velocity and acceleration curves; in order to respond to changes of machining parameters immediately, adjusting current velocity planning results was carried out in dynamic override module. The experimental results reveal that the proposed algorithm may realize real-time flexible acceleration/deceleration control, support dynamic override and implement high-quality processing.