After a mathematical model of saddle shaped curve being built up, a constant speed control for forming saddle shaped curve is presented to meet the requirement of uniformity of resultant feedrate.

• 从建立马鞍型曲线的数学模型出发,以要求合成进给速度均匀为条件,提出了一种形成马鞍型曲线的恒速控制法,介绍了在实时控制中的控制算法和实现方法,并通过实例验证了该方法的可行性。