Method for controlling a powertrain having multiple torque sources
US6830532B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2003 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S477/905
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling a powertrain in a motor vehicle having a first torque source and a second torque source each providing a torque output to a transmission includes determining a vehicle speed and a current gear selection of the motor vehicle. A threshold value is calculated from the vehicle speed and the current gear selection. An accelerator position of the motor vehicle is then determined. An accelerator position rate of change is calculated from the accelerator position. The accelerator position rate of change is compared to the threshold value. The torque output from the first torque source is increased if the accelerator position rate of change is less than the threshold value. However, the transmission is downshifted if the accelerator position rate of change is greater than the threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.