Method for controlling the starting torque and starting power of an internal combustion engine
US6700212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | May 16, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2300/106
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for optimizing the starting torque and for reducing the electrical power usage of a starter-generator of an internal combustion engine. The starter-generator is configured as an electrical machine, which is operated using an inverter or an indirect a.c. converter the electrical power Pel being made available by a vehicle battery. Before the imaginary turning point (31) on the torque curve (4) of the starter-generator is reached, the phase current of the electrical machine is limited. The electrical machine is controlled from the point at which a limiting point (32) is reached along the electrical limiting power curve (30) (P=const), such that the electrical power Pel corresponds to that at the stationary operating point (25) of the electrical machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.