Fuel economizer system
US6830121B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Oct 10, 2001 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system for increasing the fuel economy in a combustion engine by controlling the limit of turbo boost under a given set of conditions regarding vehicle speed. When a vehicle speed is above the manufactures drop-out speed, an intermediate set speed limit (between drop-out speed and cruise set speed) and a turbo boost limit is set. Turbo boost is limited to a specific pounds per square inch as long as the vehicle speed exceeds the intermediate set speed. By limiting the turbo boost, the fuel efficiency is increased while the vehicle is operating above the intermediate set speed. The vehicle FES can be designed to operate in an automatic mode, a semi-automatic mode or a manual mode, although an automatic mode of operation is most desirable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.