Adaptive speed control system and method for adapting motor control to changing load conditions
US12296688B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2023 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Oct 19, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2260/42
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An adaptive speed control system and method for adapting control of an electric motor under a changing load condition. A load torque observer determines a load torque value when the motor is operating at a constant speed, and the load torque value is used to adapt a torque. An inertia observer determines an inertia load value when the motor is operating at a changing speed, and the inertia load value is used to adapt a controller gain. An active disturbance input decoupler provides disturbance rejection when the motor is operating at a constant speed. An adaptive control switch switches the load torque observer between driving the inertia observer and driving the active disturbance input decoupler. The system may be configured for a multi-axis system in which multiple motors are each associated with a different axis of motion, and multiple adaptive speed control systems are each associated with a different motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.