公开(公告)号：US6046561A

公开(公告)日：2000-04-04

申请号：US197882

申请日：1998-11-23

申请人： Andrew Karl Zup ,  Robert John Disser ,  Michael Bernard Monahan

发明人： Andrew Karl Zup ,  Robert John Disser ,  Michael Bernard Monahan

IPC分类号： H02P25/08 ,  H02P6/12 ,  H02P7/05

CPC分类号： H02P25/0925

摘要： An improved commutation control method precisely controls commutation in a switched reluctance machine with a relatively low resolution position encoder and a low cost micro-processor based controller. The control method involves the formation of a motor position signal having logic level transitions, or edges, that define base commutation signals for commutating the motor phase windings in sequence with no phase advance. When no phase advance is desired, the controller turns the phase windings on and off in time with the respective base commutation signals. When phase advance is desired, the controller turns each of the windings on and off relative to the base commutation signal for the preceding phase winding. More specifically, the turn-on and turn-off points for phase advance control are timed to occur a delay time after the edges of the base commutation signal for the preceding phase. The delay time is determined by measuring the time between two successive edges of the motor position signal, and reducing such measure by a constant value corresponding to a selected linear profile of phase advance vs. motor speed. The control method may be utilized in the context of a motor control strategy in which the motor is operated with no phase advance at low speeds, at a fixed maximum phase advance at very high speeds, and at a speed dependent variable phase advance at intermediate motor speeds.

摘要翻译： 改进的换向控制方法精确地控制了具有相对低分辨率位置编码器和低成本基于微处理器的控制器的开关磁阻电机中的换向。 该控制方法包括形成具有逻辑电平转换或边缘的电动机位置信号，其限定用于没有相位超前的顺序换向电动机相绕组的基本换向信号。 当不需要相位提前时，控制器在相应的基极换向信号的时间内使相位绕组接通和关断。 当需要相位提前时，控制器相对于前一相绕组的基极换向信号使每个绕组接通和断开。 更具体地，用于相位超前控制的导通和关断点被定时以在前一相位的基极换向信号的边沿之后的延迟时间发生。 延迟时间通过测量电机位置信号的两个连续边缘之间的时间来确定，并且通过对应于相位提前与电动机速度的所选线性轮廓的常数值来减小该测量。 控制方法可以在马达控制策略的上下文中使用，其中马达在低速下以相位超前运行，以非常高的速度在固定的最大相位提前运行，并且在中间马达处以速度相关的可变相位前进运行 速度。

公开(公告)号：US5712547A

公开(公告)日：1998-01-27

申请号：US455301

申请日：1995-05-31

申请人： Eugene Bryan Porter ,  Robert John Disser ,  Michael Bernard Monahan

发明人： Eugene Bryan Porter ,  Robert John Disser ,  Michael Bernard Monahan

IPC分类号： B60S1/08 ,  G05F1/46 ,  G05F1/565 ,  B60S1/58

CPC分类号： G05F1/46 ,  Y10S318/02

摘要： A software-controlled latched voltage regulator includes three bipolar transistors responsive to a wiper switch multiplexed signal to place a latch formed by the transistors in an energized state, thereby supplying power to a microcontroller. One of the bipolar transistors is responsive to a deenergization signal supplied by the microcontroller, under software control, to place the latch in a deenergized state wherein regulated power is no longer supplied to the microcontroller. The voltage regulator further includes a zener diode that provides a reference voltage for use in connection with one of the transistors to implement a decoding function that is applied to the switch multiplexed signal to provide a pair of wiper switch position signals for use by the microcontroller during operation. While the latch remains in an energized state, the supplied regulated voltage enables the microcontroller to park a wiper arm of a wiper system, even though an ignition switch is an off position. Once the wiper arm is parked, as sensed by cam switches, the microcontroller deactivates the latch by generating the deenergization signal to power down the system in order to reduce current draw.

摘要翻译： 软件控制的锁存电压调节器包括三个双极晶体管，其响应于抽头开关多路复用信号，以将由晶体管形成的锁存器置于通电状态，从而向微控制器供电。 双极晶体管之一响应于由微控制器在软件控制下提供的去激励信号，以将锁存器置于断电状态，其中不再向微控制器供电。 电压调节器还包括齐纳二极管，其提供与晶体管中的一个结合使用的参考电压，以实现应用于开关多路复用信号的解码功能，以提供一对擦拭器开关位置信号供微控制器使用 操作。 当闩锁保持在通电状态时，即使点火开关处于关闭位置，所提供的调节电压也使得微控制器能够停放刮水器系统的雨刷臂。 一旦雨刮器臂停放，通过凸轮开关感测到，微控制器通过产生断电信号来使锁存器失效，以使系统断电以减少电流消耗。