| 发明名称 | Ultrasonic motor control system and method | ||
| 摘要 | A method of controlling an ultrasonic motor coupled to a motor driver circuit, comprises receiving a temperature signal representing the temperature of the ultrasonic motor, receiving a position signal output by a first encoder representing the position of the ultrasonic motor, calculating an error between the position of the ultrasonic motor represented by the position signal and a target position, calculating a control signal based on the temperature of the ultrasonic motor represented by the temperature signal and the calculated error, and sending the control signal to the motor driver circuit to control the ultrasonic motor. | ||
| 申请公布号 | US9513620(B2) | 申请公布日期 | 2016.12.06 |
| 申请号 | US201414225199 | 申请日期 | 2014.03.25 |
| 申请人 | Vital Biomedical Technologies Inc. | 发明人 | Tavallaei Mohammad Ali;Drangova Maria |
| 分类号 | G05D23/275;G05B19/404;H02N2/14 | 主分类号 | G05D23/275 |
| 代理机构 | Dicke, Billig & Czaja, PLLC | 代理人 | Dicke, Billig & Czaja, PLLC |
| 主权项 | 1. A method of controlling an ultrasonic motor coupled to a motor driver circuit, comprising: receiving a temperature signal representing the temperature of the ultrasonic motor; in the event that the temperature of the ultrasonic motor is within a temperature threshold: obtaining a position of a first encoder coupled to the ultrasonic motor;obtaining a dynamic target position;calculating an error between the position of the first encoder and the dynamic target position;calculating a control signal using a dynamic model of the ultrasonic motor and the motor driver circuit and the calculated error; andsending the calculated control signal to the motor driver circuit to adjust the position of the first encoder; and repeating the receiving, obtaining, calculating and sending until the calculated error is equal to zero or the temperature of the ultrasonic motor is not within the temperature threshold. | ||
| 地址 | Ontario CA | ||