Electric drive fuel control system and method
US7560881B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2007 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Jan 21, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2270/094
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electric drive fuel control system and method for controlling a total drive torque supplied to a fuel metering pump includes a first main drive motor, a second main drive motor, and a backup drive motor, all coupled to the fuel metering pump. The operability of a main motor control to control electric current supply to the first main drive motor or the second main drive motor is determined. If the main motor control is operable, the total drive torque to the fuel pump is supplied from the backup motor and either the first main drive motor or the second main drive motor. If the main motor control is inoperable, the total drive torque to the fuel pump is supplied from only the backup drive motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.