DEVICE AND METHOD FOR FAST POSITION CONTROL OF A HYDRAULIC ACTUATOR

A method, control system, and variable valve timing system are provided for controlling an actuator that can be switched into an on state and an off state with pulse width modulation. The systems andmethod include controls configured to determine an actual system parameter on a first time schedule and a desired system parameter on a second time schedule. On a third time schedule, a position errordifference between the actual system parameter and the desired system parameter is determined. The third time schedule is configured to begin and to determine the position error difference each timethat the actual system parameter is determined and each time that the desired system parameter is determined. A desired duty cycle is determined, and a duty cycle command is sent to a pulse width modulation output unit. 提供了种用于控制可利用脉冲宽度调制切换至接通状态和关断状态的致动器的方法、控制系统和可变阀正时系统。该系统和方法包括控制，其配置为在第时间表上确定实际系统参数并且在第二时间表上确定期望系统参数。在第三时间表上，确定实际系统参数与期望系统参数之间的位置误差差值。第三时间表被配置为每当确定实际系统参数时并且每当确定期望系统参数时开始并且确定位置误差差值。确定期望占空比，且将占空比命令发送至脉冲宽度调制输出单元。