Shift control device for hybrid vehicle
US6819985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | May 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/951
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shift control device includes a controller and a differential mechanism including four rotating elements. Each of the elements is connected to an engine, two motor/generators and an output. The controller is programmed to calculate a target driving power; make a judgment as to whether the target driving power is less than or equal to a driving power wherein the engine is driven under optimum fuel efficiency; when the judgment shows that the target driving power is larger than the driving power, calculate an engine's speed and torque wherein the target driving power is realized such that the engine is driven for maximum load; and control the engine under the engine's speed and torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.