Method and apparatus for detecting motor error of motor driven power steering
US9421998B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Jul 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0092
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for detecting a motor error of a motor driven power steering (MDPS) may include: calculating, by a control unit, a Q-axis command current of a motor through a Q-axis command current calculation unit, according to requested torque; calculating a command current of each phase of the motor from the calculated Q-axis command current of the motor; controlling the motor according to the Q-axis command current of the motor, and sensing a measured current of each phase of the motor through each current sensor; determining whether each phase of the motor is disconnected, through the command current and the measured current of each phase of the motor; and outputting the determination result to an output unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.