阐述了计算机控制技术对提高汽车用覆盖件产品质量的重要性 ,以近几年成为热门研究课题的覆盖件成形压边力调控问题为例 ,论述了压边力影响拉深成形的原理、实现变压边力对设备的要求、国内外变压边力拉深设备的现状、压边力控制曲线的实现等关键性的技术问题。最后指出了大型汽车板生产工艺变压边力控制思想、存在问题及相应对策 The importance of computer control technology to improve the product quality of automobile cover is expounded. Taking the control of forming blank holder force as a hot research topic in recent years as an example, the principle that blank holder force affects drawing forming is discussed. The requirement of blank holder force on equipment, the current situation of blank holder drawing machine at home and abroad, the realization of blank holder force control curve and other key technical problems. At last, it points out the control thought, existing problems and corresponding countermeasures of the variable pressure side force of large automobile plate production process