Method and apparatus for diagnosing motor damping network integrity
US7245130B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 2005 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Oct 25, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0487
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus for diagnosing motor damping network integrity, the motor damping network configured for selective short-circuiting of the windings of a motor in a motor control system. The apparatus includes a motor controller with a motor drive portion thereof electrically isolated from the windings of the motor. A resonant network is based on the windings of the motor, the damping network, and a remaining non-isolated portion of the controller. An amplifier circuit applies an excitation signal to the resonant network. A detector circuit detects a response of the resonant network based on the excitation signal. A state of the damping network is determined based on the response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.