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1. 发明授权

US07589484B2 Closed loop acceleration control for a data storage device motor 有权
标题翻译：数据存储设备电机的闭环加速控制
公开(公告)号：US07589484B2
公开(公告)日：2009-09-15
申请号：US10455134
申请日：2003-06-05
申请人： Raye Abdoulie Sosseh , James Wilford DuLaney , Ryan Todd Lyle
发明人： Raye Abdoulie Sosseh , James Wilford DuLaney , Ryan Todd Lyle
IPC分类号： H02P1/00
CPC分类号： H02P6/182 , G11B19/28 , H02P6/20
摘要： Method and apparatus for accelerating a multi-phase motor having a rotatable rotor are disclosed. A first commutation state in which the rotor resides is identified, after which a Proportional, Integral and Derivative (PID) control routine is executed for closed loop control of an acceleration of the rotor from a stopped position to an intermediate velocity, after which back electromotive force (Bemf) commutation is used to control the motor. The PID control routine utilizes a loop gain value optimized through voltage feedback indicative of a response of windings of the rotor to an application of a drive current across the windings. Based on the voltage feedback a controller programmed with the PID control routine provides an updated commanded current for each successive commutation state of the motor for use by a motor driver circuitry, which drives the motor through each commutation state until attainment of the intermediate velocity.
摘要翻译：公开了一种用于加速具有可旋转转子的多相电动机的方法和装置。识别转子所在的第一换向状态，之后执行比例积分和微分（PID）控制程序，用于闭环控制转子从停止位置到中间速度的加速度，之后反电动势力（Bemf）换向用于控制电机。 PID控制程序利用通过电压反馈优化的环路增益值，该电压反馈指示转子绕组对跨绕组施加驱动电流的响应。基于电压反馈，用PID控制程序编程的控制器为马达的每个连续换向状态提供更新的指令电流，以供马达驱动器电路使用，马达驱动器电路通过每个换向状态驱动马达直到达到中间速度。

2. 发明授权

US07012391B2 Motor acceleration using continuous sequence of current limit values 失效
标题翻译：电机加速度采用连续电流限制值
公开(公告)号：US07012391B2
公开(公告)日：2006-03-14
申请号：US10409967
申请日：2003-04-09
申请人： James Wilford DuLaney
发明人： James Wilford DuLaney
IPC分类号： H02P6/08 , H02P6/20
CPC分类号： H02P6/185 , G11B19/20 , G11B19/2054 , H02P6/22 , H02P6/28
摘要： Method and apparatus for accelerating a motor to an operational velocity using a continuous sequence of current limit values derived from a plurality of discrete current limit values. Each discrete current limit value establishes a maximum current magnitude for the motor over a plurality of intermediate velocities less than the operational velocity. Each current limit value in the continuous sequence of current limit values has a different magnitude for each different one of the plurality of intermediate velocities. The continuous sequence of current limit values are preferably derived by generating coefficients of a multi-order polynomial curve in relation to the discrete current limit values, and obtaining the continuous sequence of current limit values in relation to said coefficients. Faster acceleration, reduced current spiking and less acoustic noise during motor acceleration are thereby obtained.
摘要翻译：用于使用从多个离散电流极限值导出的连续电流极限值序列将电动机加速到运行速度的方法和装置。每个离散电流极限值在小于操作速度的多个中间速度下建立电动机的最大电流大小。电流限制值的连续序列中的每个电流限制值对于多个中间速度中的每个不同的一个速度具有不同的幅度。电流限制值的连续序列优选通过相对于离散电流限制值生成多阶多项式曲线的系数，并获得与所述系数相关的电流限制值的连续序列来导出。从而获得更快的加速度，减少的电流尖峰和较少的马达加速时的声音噪声。

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