Methods and systems for reducing the formation of oxides of nitrogen during combustion of engines

A method of eliminating or at least reducing the production of oxides of nitrogen during combustion in a vehicle engine, the method comprising:

• introducing fuel into a combustion chamber of the engine;
• igniting the fuel in the combustion chamber to cause combustion;
• measuring acceleration of an engine component in response to the combustion;
• and
• adjusting a parameter of combustion to reduce peak combustion temperature based on the measured acceleration.

A method of manufacturing an engine control module for preventing the formation of oxides of nitrogen during combustion, the method comprising:

• introducing fuel into a combustion chamber of an engine;
• igniting the fuel in the combustion chamber to cause combustion;
• measuring a peak temperature in the combustion chamber resulting from the combustion;
• measuring acceleration of an engine component in response to the combustion;
• correlating the measured acceleration to the measured peak temperature;
• and
• programming an engine control module to control peak combustion chamber temperature based on measured acceleration.

A system for controlling an internal combustion engine, the system comprising:

• means for introducing fuel into a combustion chamber of the engine;
• means for igniting the fuel in the combustion chamber to cause combustion;
• means for measuring acceleration of an engine component in response to the combustion;
• means for determining if the measured acceleration corresponds to a peak combustion temperature wherein oxides of nitrogen are formed;
• means for detecting if oxides of nitrogen are present in exhaust gas of the engine if the measured acceleration corresponds to a temperature lower than the peak combustion temperature and wherein if oxides of nitrogen are detected, means for resetting the peak combustion temperature to the lower temperature;
• and
• means for adjusting a parameter of combustion to reduce peak combustion temperature based on the measured acceleration.