Method and system for controlling engine using combustion pressure sensor
AssigneeHyundai Motor Company
InventorKyoungchan HAN
Life of this patent
Estimating the term…
Abstract
A method for controlling an engine which comprises a combustion pressure sensor includes receiving a combustion pressure signal from the combustion pressure sensor. An Indicated mean effective pressure (IMEP) deviation for each cylinder and an IMEP deviation for each driving cycle for the engine are calculated based on a combustion pressure according to the received combustion pressure signal. A main injection timing is set based on a difference between the calculated IMEP deviations for the each cylinder and a difference between the calculated IMEP deviations for the each driving cycle. The engine runs by injecting a fuel according to the set main injection timing.
Claims7
A method for controlling an engine which includes a combustion pressure sensor, the method comprising steps of:
- receiving a combustion pressure signal from the combustion pressure sensor;
- calculating an indicated mean effective pressure (IMEP) deviation for each cylinder and an IMEP deviation for each driving cycle for the engine based on a combustion pressure according to the received combustion pressure signal;
- setting a main injection timing based on a difference between the calculated IMEP deviations for the each cylinder and a difference between the calculated IMEP deviations for the each driving cycle;
- driving the engine by injecting a fuel according to the set main injection timing.
A system for controlling an engine which includes a combustion pressure sensor, the system comprising:
- a coolant sensor configured to detect a coolant temperature;
- an atmospheric pressure sensor configured to detect atmospheric pressure;
- an atmospheric temperature sensor configured to detect atmospheric temperature;
- and
- an engine controller configured to receive signals from the combustion pressure sensor, the coolant sensor, the atmospheric pressure sensor, and the atmospheric temperature sensor and to control the engine based on the received signals.
Dependencies are inferred from the claim text.