Method and arrangement for controlling the RPM of a drive unit
US6615785B2 · kind B2 · utility
14Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to a method and an arrangement for controlling the rpm of a drive unit. During run-up of the engine to idle after start, a desired rpm is pregiven and an actual rpm is detected for forming the course of rpm. An electric machine is driven in dependence upon the deviation between the desired rpm and the actual rpm. With respect to the engine, the electric machine outputs braking and driving torques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.