Method for controlling a corona ignition device
AssigneeBorgWarner Ludwigsburg GmbH
InventorsSteffen Bohne, Alexander Schenk
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Abstract
Disclosed is an inventive method for controlling a corona ignition device of an internal combustion engine. A corona discharge, which ignites fuel in a combustion chamber of the engine, is generated by applying a voltage to the corona ignition device. An actual value that is characteristic of the nitrogen oxide concentration of the exhaust gas is compared with a setpoint value, and, if the actual value deviates from the setpoint value by more than a specified threshold value and the actual value is greater than the setpoint value, the voltage is reduced after the comparison.
Claims14
A method for controlling a corona ignition device of an internal combustion engine, the method comprising:
- applying a voltage to the corona ignition device and thereby generating a corona discharge, the corona discharge igniting fuel in a combustion chamber of the engine;
- determining nitrogen oxide concentration in exhaust gas of the internal combustion engine;
- comparing the determined nitrogen oxide concentration with a setpoint value for nitrogen oxide concentration in the exhaust gas;
- and
- reducing the voltage applied to the corona ignition device after the comparison when the determined nitrogen oxide concentration is greater than the setpoint value by more than a first predetermined threshold amount and thereby reducing the amount of nitrogen oxide in the exhaust gas.
A method for controlling a corona ignition device of an internal combustion engine, the method comprising:
- applying a voltage to the corona ignition device and thereby generating a corona discharge, the corona discharge igniting fuel in a combustion chamber of the engine;
- determining nitrogen oxide concentration in exhaust gas of the internal combustion engine;
- comparing the determined nitrogen oxide concentration with a setpoint value for nitrogen oxide concentration in the exhaust gas;
- and
- increasing the voltage applied to the corona ignition device after the comparison when the determined nitrogen oxide concentration is less than the setpoint value by more than a first predetermined threshold amount and thereby increasing the amount of nitrogen oxide in the exhaust gas.
Dependencies are inferred from the claim text.