Hybrid transmission launch algorithm
US7243011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2004 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | May 21, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/945
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A launch system for a hybrid vehicle includes a pump, an electronic throttle, a sensor, and a hybrid control module. The pump is driven by an internal combustion engine and provides pressurized fluid to a transmission. The electronic throttle selectively adjusts airflow to the internal combustion engine and current to an electric motor. The sensor detects when a brake pedal has been released. The hybrid control module increases pressure of the pressurized fluid and limits torque transfer from at least one of the internal combustion engine and the electric motor when the sensor detects that the brake pedal has been released until a predetermined condition has been met. The hybrid control module increases pressure of the pressurized fluid with the pump by increasing the revolutions of the internal combustion engine and limits torque to the transmission by retarding the responsiveness of the electronic throttle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.