Drive train for a motor vehicle and method for operating such a drive train
US7658261B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2006 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Apr 17, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2500/5108
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a method for operating a drive train for a motor vehicle, a torque is produced by means of an internal combustion engine as a function of an available torque set value signal and transmitted to drive wheels by means of a clutch. With the help of an electric motor, a closing force is applied, with which the clutch is held in a closed position against a restoring force. The electric motor is energized in such a way that a high current is used in the case of a high torque and a lower current is used in the case of a lower torque. The thermal load of the electric motor is determined and a load signal corresponding to the thermal load is produced. The load signal is compared with a load limit signal assigned to a permissible load range. If the load signal deviates from the load-limit signal, the torque of the internal combustion engine is limited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.