Patent · US Active

Control device for internal combustion engine

US8688356B2 · kind B2 · utility

2Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 13, 2006
Grant dateApr 1, 2014
Priority date
Expiry dateDec 23, 2030

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/7072
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

When the variation of the knock control system learning value is large, an idle speed learning control is performed in a learning acceleration mode. In this mode, the idle speed learning update increases and idle speed learning is performed at a high speed. By performing the idle speed learning in the learning acceleration mode, the idle speed learning can immediately follow large variations of the knock control system learning value. Accordingly, the idle speed learning control performed during idling of a hybrid car can be completed in a short time, and fuel consumption during idling can be reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.