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    • 3. 发明授权
    • Servo control booster system for minimizing following error
    • 伺服控制增压系统,用于尽量减少以下误差
    • US4553078A
    • 1985-11-12
    • US061114
    • 1979-07-26
    • William L. Wise
    • William L. Wise
    • G05D3/12G05B11/36G05B19/23G05B11/18
    • G05B19/232G05B2219/42071G05B2219/42075G05B2219/42091
    • A closed-loop feedback-controlled servo system is disclosed which reduces command-to-response error to the system's position feedback resolution least increment, .DELTA.S.sub.R, on a continuous real-time basis for all operating speeds. The servo system employs a second position feedback control loop on a by exception basis, when the command-to-response error .gtoreq..DELTA.S.sub.R, to produce precise position correction signals. When the command-to-response error is less than .DELTA.S.sub.R, control automatically reverts to conventional control means as the second position feedback control loop is disconnected, becoming transparent to conventional servo control means. By operating the second unique position feedback control loop used herein at the appropriate clocking rate, command-to-response error may be reduced to the position feedback resolution least increment. The present system may be utilized in combination with a tachometer loop for increased stability.
    • 公开了一种闭环反馈控制的伺服系统,其针对所有操作速度在连续实时的基础上减小系统的位置反馈分辨率最小增量DELTA SR的响应命令误差。 当命令响应误差> / = DELTA SR时,伺服系统在异常的基础上采用第二位置反馈控制回路,以产生精确的位置校正信号。 当命令响应误差小于DELTA SR时,随着第二位置反馈控制回路断开,控制自动恢复到常规控制装置,对于常规伺服控制装置变得透明。 通过以适当的时钟速率操作这里使用的第二唯一位置反馈控制回路,可以将命令响应误差减小到位置反馈分辨率最小增量。 本系统可以与转速计回路组合使用以提高稳定性。