Method and system of controlling a powertrain system to reduce turbo lag in a hybrid vehicle
US8731762B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Apr 24, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of controlling a powertrain system includes determining a torque request; selecting feasible input torque and input speed operating points; calculating aggregate system power losses; determining turbo efficiency as a function of a difference between a feasible input torque rate of change and a desired input torque rate of change required to reach the desired output torque; summing the turbo efficiency to the aggregate system power losses to determine total system losses corresponding to feasible input torques and input speed capable of producing the desired output torque; determining a feasible input torque and input speed corresponding to a substantially minimum total system power loss; and selecting as a desired input speed and input torque that corresponds to the substantially minimum total system power loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.