Method and system for fail-safe motor operation

US6965206B2 · kind B2 · utility

Assignee

• DEKA Products Limited Parternship · US

Inventors

• Dean Kamen · Bedford, US
• John B. Morrell · Bedford, US
• David W. Robinson · Bay Ridge, US
• Ronald K. Reich · Florham Park, US
• John David Heinzmann · Manchester, US
• Philip LeMay · Bedford, US
• Steven R. Meyer · North Reading, US
• Jason M. Sachs · Chandler, US
• J. Douglas Field · Bedford, US

Key dates

• Filing date: Dec 2, 2002
• Grant date: Nov 15, 2005
• Expiry date: Dec 2, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S388/903
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An electric device includes a motor and a motor drive for commanding a torque generated by the motor. A fault control circuit detects a fault condition associated with the motor drive. Upon detection of the fault condition, the fault control circuit adjusts the torque commanded by the motor drive.