Patent ID: 7258103
Filing Date: 2007-08-21
Classification: F02D,F02M

Abstract:
1. A control apparatus for an internal combustion engine including at least two fuel systems, and having fuel supplied by a fuel injection mechanism connected to each of said fuel systems, controlled such that pressure of fuel at a first fuel system supplying fuel to a first fuel injection mechanism attains a desired pressure level even when fuel is not injected by said first fuel injection mechanism and fuel is injected by a second fuel injection mechanism other than said first fuel injection mechanism, said control apparatus comprising: a sensor unit sensing pressure of fuel at said first fuel system, a determination unit determining whether pressure of fuel at said first fuel system has risen or not as a result of the fuel at said first fuel system receiving heat from said internal combustion engine operated with fuel injected by said second fuel injection mechanism, and an identification unit identifying that there is no error at said first fuel system when determination is made by said determination unit that the pressure of fuel at said first fuel system has risen.