Powertrain system
US11458830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2020 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Jun 2, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A powertrain system includes an internal combustion engine, a motor generator and a control device. The motor generator includes a rotating shaft connected to a crankshaft of the internal combustion engine via a torsional damper. The powertrain system is configured such that the crankshaft and the above-described rotating shaft are not connected to a drive shaft of a vehicle at least at the time of engine start. The control device is configured to execute a cranking torque amplification control that controls the motor generator such that the MG torque output from the motor generator for cranking the internal combustion engine fluctuates in a resonant period of the torsional damper while making a fluctuation center of the MG torque higher than zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.