公开(公告)号：US08476852B2

公开(公告)日：2013-07-02

申请号：US13086070

申请日：2011-04-13

Applicant: David John Hawker ,  Hanping Dai

Inventor： David John Hawker ,  Hanping Dai

IPC: H02P23/12 ,  H02P6/06

CPC classification number: H02P6/14 ,  H02P2209/07

Abstract: A controller for a brushless motor that includes a processor, a first timer, a second timer, a compare register, a comparator, an input, and one or more outputs. The processor starts the first timer in response to a signal at the input. The first timer then generates an interrupt after a first period. In response to the interrupt, the processor generates a first control signal at the outputs. The processor also loads the compare register and starts the second timer in response to either the input signal or the interrupt. The comparator then generates a second control signal at the outputs when the second timer and the compare register correspond. Additionally, a motor system that includes the controller.

Abstract translation: 一种用于无刷电动机的控制器，其包括处理器，第一定时器，第二定时器，比较寄存器，比较器，输入和一个或多个输出。 处理器响应于输入端的信号启动第一个定时器。 第一个定时器在第一个周期之后产生一个中断。 响应于中断，处理器在输出端产生第一控制信号。 处理器还加载比较寄存器，并响应于输入信号或中断启动第二个定时器。 当第二定时器和比较寄存器对应时，比较器在输出端产生第二控制信号。 另外，包括控制器的电机系统。

公开(公告)号：US20120081050A1

公开(公告)日：2012-04-05

申请号：US13252781

申请日：2011-10-04

Applicant: Hanping Dai

Inventor： Hanping Dai

IPC: H02P6/16

CPC classification number: H02P6/002 ,  H02P6/15 ,  H02P6/157 ,  H02P6/16 ,  H02P6/26 ,  H02P6/28 ,  H02P25/03 ,  H02P25/04

Abstract: A method of controlling an electrical machine that includes commutating a phase winding of the electrical machine at a time T_COM(1) after a first edge and at a time T_COM(2) after a second edge of a rotor-position signal. T_COM(2) is defined by the equation: T_COM(2)=T_COM(1)+T_AVE−T_PD, where T_AVE is an average period between edges of the rotor-position signal, and T_PD is the period between the first and second edges. Additionally, a controller and control system that implement the method.

Abstract translation: 一种控制电机的方法，其包括在转子位置信号的第二边缘之后的时间T_COM（1）之后的第一边缘和时间T_COM（2）之后使电机的相绕组换向。 T_COM（2）由下式定义：T_COM（2）= T_COM（1）+ T_AVE-T_PD，其中T_AVE是转子位置信号的边缘之间的平均周期，T_PD是第一和第二边缘之间的周期 。 另外，实现该方法的控制器和控制系统。

公开(公告)号：US20110254482A1

公开(公告)日：2011-10-20

申请号：US13086174

申请日：2011-04-13

Applicant: Hanping Dai

Inventor： Hanping Dai

IPC: H02P6/08

CPC classification number: H02P6/002 ,  H02P6/181 ,  H02P6/28 ,  H02P29/028 ,  H02P29/032 ,  H02P2209/07

Abstract: A method of controlling a brushless motor that includes exciting a winding of the motor with a voltage, and freewheeling the winding when current in the winding exceeds a threshold or after the winding has been excited for a timeout period. The timeout period is adjusted in response to a change in one of the voltage and the motor speed. Additionally, a control system that implements the method, and a motor system that incorporates the control system.

Abstract translation: 一种控制无刷电动机的方法，其包括用电压激励所述电动机的绕组，并且当所述绕组中的电流超过阈值时或者在所述绕组被激励超时时间之后，绕过所述绕组。 响应于电压和电动机速度之一的变化来调整超时周期。 另外，实现该方法的控制系统以及并入控制系统的电机系统。

公开(公告)号：US08674634B2

公开(公告)日：2014-03-18

申请号：US13087092

申请日：2011-04-14

Applicant: Hanping Dai

Inventor： Hanping Dai

IPC: H03K5/00

CPC classification number: H02P6/08 ,  H02P6/26 ,  H02P6/34

Abstract: A controller for a brushless motor that includes an input for receiving an analog signal, an analog-to-digital converter (ADC) for sampling the analog signal, and a processor. The processor starts the ADC during a first electrical half-cycle and reads the ADC during a second electrical half-cycle of the motor. Additionally, a motor system that includes the controller.

Abstract translation: 一种用于无刷电动机的控制器，其包括用于接收模拟信号的输入端，用于对模拟信号进行采样的模数转换器（ADC）和处理器。 处理器在第一个电半周期期间启动ADC，并在电机的第二个电半周期期间读取ADC。 另外，包括控制器的电机系统。

公开(公告)号：US20120081046A1

公开(公告)日：2012-04-05

申请号：US13252773

申请日：2011-10-04

Applicant: Hanping Dai ,  Yu Chen ,  Tuncay Celik ,  Libo Zheng

Inventor： Hanping Dai ,  Yu Chen ,  Tuncay Celik ,  Libo Zheng

IPC: H02P6/16

CPC classification number: H02P6/002 ,  H02P6/15 ,  H02P6/157 ,  H02P6/16 ,  H02P6/26 ,  H02P6/28 ,  H02P25/03 ,  H02P25/04

Abstract: A method of controlling an electrical machine that includes selecting an edge of a rotor-position signal as a reference edge and commutating a phase winding of the electrical machine at times relative to the reference edge. The rotor-position signal has at least four edges per mechanical cycle, each of the edges being associated with a respective zero-crossing in back EMF or minimum in inductance of the phase winding. The angular position of at least one of the edges relative to its respective zero-crossing or minimum is different to that of the other edges. The reference edge is then selected from the edges such that the angular position of the reference edge relative to its respective zero-crossing or minimum is the same with each power on of the electrical machine. Additionally, a controller and control system that implement the method.

Abstract translation: 一种控制电机的方法，包括选择转子位置信号的边缘作为参考边缘，并且相对于参考边缘在时间上整流电机的相绕组。 转子位置信号每个机械循环具有至少四个边缘，每个边缘与反向电动势中的相应过零点或相绕组的电感中的最小值相关联。 边缘中的至少一个相对于其相应过零点或最小值的角位置不同于其它边缘的角位置。 然后从边缘中选择参考边缘，使得参考边缘相对于其相应的过零或最小值的角位置与电机的每个上电相同。 另外，实现该方法的控制器和控制系统。

公开(公告)号：US20110257791A1

公开(公告)日：2011-10-20

申请号：US13086070

申请日：2011-04-13

Applicant: David John Hawker ,  Hanping Dai

Inventor： David John Hawker ,  Hanping Dai

IPC: G05B15/00

CPC classification number: H02P6/14 ,  H02P2209/07

Abstract: A controller for a brushless motor that includes a processor, a first timer, a second timer, a compare register, a comparator, an input, and one or more outputs. The processor starts the first timer in response to a signal at the input. The first timer then generates an interrupt after a first period. In response to the interrupt, the processor generates a first control signal at the outputs. The processor also loads the compare register and starts the second timer in response to either the input signal or the interrupt. The comparator then generates a second control signal at the outputs when the second timer and the compare register correspond. Additionally, a motor system that includes the controller.

Abstract translation: 一种用于无刷电动机的控制器，其包括处理器，第一定时器，第二定时器，比较寄存器，比较器，输入和一个或多个输出。 处理器响应于输入端的信号启动第一个定时器。 第一个定时器在第一个周期之后产生一个中断。 响应于中断，处理器在输出端产生第一控制信号。 处理器还加载比较寄存器，并响应于输入信号或中断启动第二个定时器。 当第二定时器和比较寄存器对应时，比较器在输出端产生第二控制信号。 另外，包括控制器的电机系统。

公开(公告)号：US20110254484A1

公开(公告)日：2011-10-20

申请号：US13087092

申请日：2011-04-14

Applicant: Hanping DAI

Inventor： Hanping DAI

IPC: H02P6/08

CPC classification number: H02P6/08 ,  H02P6/26 ,  H02P6/34

Abstract: A controller for a brushless motor that includes an input for receiving an analog signal, an analog-to-digital converter (ADC) for sampling the analog signal, and a processor. The processor starts the ADC during a first electrical half-cycle and reads the ADC during a second electrical half-cycle of the motor. Additionally, a motor system that includes the controller.

Abstract translation: 一种用于无刷电动机的控制器，其包括用于接收模拟信号的输入端，用于对模拟信号进行采样的模数转换器（ADC）和处理器。 处理器在第一个电半周期期间启动ADC，并在电机的第二个电半周期期间读取ADC。 另外，包括控制器的电机系统。

公开(公告)号：US20070252551A1

公开(公告)日：2007-11-01

申请号：US10588289

申请日：2005-01-27

Applicant: Andrew Clothier ,  Stephen Greetham ,  Hanping Dai

Inventor： Andrew Clothier ,  Stephen Greetham ,  Hanping Dai

IPC: H02P6/14

CPC classification number: H02P25/0925 ,  H02P6/153

Abstract: An electrical machine, such as a switched reluctance motor, has a rotor and at least one electrically energizable phase winding. A control map is derived during production that includes a predetermined advance angle profile representing the energization of the phase winding with respect to the angular position of the rotor over a range of rotor speeds. This is stored in memory in a controller together with an angle correction factor to be applied to a predetermined portion of the advance angle profile. The angle correction factor compensates for the difference between a desired input power and the measured input power. The correction factor may be transmitted to the controller by means of radio frequency signals.

Abstract translation: 诸如开关磁阻电动机的电机具有转子和至少一个电可激励相绕组。 在生产期间导出控制图，其包括预定的提前角分布，其表示在转子速度的范围内相对于转子的角位置的相绕组的通电。 将其与控制器中的存储器一起存储在角度校正因子中，以将其应用于提前角分布的预定部分。 角度校正系数补偿所需输入功率与测量输入功率之差。 校正因子可以通过射频信号发送到控制器。