Control system with function of protecting catalytic converter for internal combustion engines for automotive vehicles
US5622049A · kind A · utility
8Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A control system for an internal combustion engine for an automotive vehicle determines whether a catalytic converter arranged in the exhaust system of the engine is in a predetermined high temperature condition. When it is determined that the catalytic converter is in the predetermined high temperature condition, priority is given either to a decrease in the amount of intake air supplied to the engine or to an increase in the amount of fuel to be supplied to the engine, depending on operating conditions of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.