Engine load management for traction vehicles
US8140206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric drive system includes a fuel-driven engine (202) driving an electrical power generator (204) that provides power to one or more electric drive motors (210). A method of load management in the electric drive system includes receiving an actual fuel signal, an engine speed (920) signal, a throttle position signal, a motor speed (712) signal, an intake air pressure, a barometric pressure signal, and an intake air temperature signal. These values are used to determine a torque limit. The torque limit is used to limit a torque command to the electric drive motors (210) such that the torque command is consistent with the operating capabilities of the engine (202).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.