Vehicle control system
US10196065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2016 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Jan 29, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2250/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vehicle control system is provided to promptly execute an ignition retard of the engine during shifting a gear stage in such a manner as to prevent an engine misfire, while switching air/fuel ratio from lean-burn ratio to stoichiometric ratio. An air/fuel ratio is switched between a stoichiometric ratio and a lean-burn ratio based on an operating point of an engine determined based on an engine speed and an engine torque. If a shifting operation of gear stage and a switching operation of the air/fuel ratio from the lean-burn ratio to the stoichiometric ratio are expected to be executed simultaneously, a controller delays the shifting operation of gear stage until completion of the switching operation of the air/fuel ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.