Idle speed reduction systems and methods
US8360030B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2010 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | May 21, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/1002
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An idle control system for a vehicle comprises an actuator control module, a torque determination module, a deviation analysis module, and an idle speed reduction module. The actuator control module regulates an engine speed based on a desired idle speed when an engine idle mode is enabled. The torque determination module determines actual torques for a cylinder of an engine while the engine idle mode is enabled. The deviation analysis module determines a standard deviation based on more than one of the actual torques while the engine idle mode is enabled. The idle speed reduction module determines an idle speed reduction based on the standard deviation and decreases the desired idle speed based on the idle speed reduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.