Air-fuel ratio control system for automotive vehicle equipped with an air conditioner
US5752387A · kind A · utility
20Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1995 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Jul 19, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/3273
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air-fuel ratio control system for an internal combustion engine of an automotive vehicle is provided which is designed to enrich an air-fuel mixture when an engine load is varied by use of an air conditioner installed in the vehicle for ensuring optimum emission control. The air-fuel ratio control system includes an air conditioner condition determining unit which determines drive torque of an air conditioner compressor as a parameter indicative of a variation in engine load and modifies an air-fuel ratio to the rich side according to an increase in drive torque of the air conditioner compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.