| 摘要 |
A method for determining the exhaust pressure (Pr) of a turbocharged internal combustion engine, including a solenoid by-pass valve for the exhaust gas, characterized in that an exhaust pressure (Pi) is determined as a function of the inlet air flow to the engine, (Ar), the engine speed (Rr) and the degree of opening of the solenoid exhaust by-pass valve (Tr), by interpolation from a reference map having exhaust gas pressure values (Pc) for given inlet air flow values (Ac), the engine speed (Rc) and the degree of opening of the solenoid exhaust by-pass valve (Tc), and the exhaust pressure determined by the interpolation (Pi) is corrected as a function of ambient pressure values (Pa, Po).
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