Method and system for control of an internalcombustion engine based on engine crank angle
AssigneeSTMicroelectronics S.r.l.
InventorsFerdinando Taglialatela, Nicola Cesario, Domenico Porto, Bianca Maria Vaglieco, Simona Silvia Merola
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Abstract
A method for control of an internal combustion engine includes generating, with a microelectromechanical system (MEMS) accelerometer, an acceleration signal representing vibrations of the internal combustion engine. An engine crank angle signal is generated based on the acceleration signal. The engine crank angle signal is compared with a target value. The internal combustion engine is adjusted based upon the comparing.
Claims24
A method for control of an internal combustion engine comprising:
- generating, with a microelectromechanical system (MEMS) accelerometer, an acceleration signal representing vibrations of the internal combustion engine;
- generating an engine crank angle signal based on the acceleration signal;
- comparing the engine crank angle signal with a target value;
- and
- adjusting the internal combustion engine based upon the comparing.
A method for control of an internal combustion engine comprising:
- generating, with a microelectromechanical system (MEMS) accelerometer, an acceleration signal representing vibrations of the internal combustion engine;
- filtering the acceleration signal;
- determining a maximum value of the filtered acceleration signal;
- determining timing of the maximum value of the filtered acceleration signal;
- generating an engine crank angle signal corresponding to the timing of the maximum value of the filtered acceleration signal;
- comparing the engine crank angle signal with a target value;
- and
- adjusting the internal combustion engine based upon the comparing.
A system for control of an internal combustion engine comprising:
- a microelectromechanical system (MEMS) accelerometer to generate an acceleration signal representing vibrations of the internal combustion engine;
- and
- circuitry configured to
- generate an engine crank angle signal based on the acceleration signal,
- compare the engine crank angle signal with a target value, and
- adjust the internal combustion engine based upon the comparing.
A system for control of an internal combustion engine comprising:
- a microelectromechanical system (MEMS) accelerometer to generate an acceleration signal representing vibrations of the internal combustion engine;
- a filter for filtering the acceleration signal;
- and
- circuitry configured to
- determine a maximum value of the filtered acceleration signal,
- determine timing of the maximum value of the filtered acceleration signal,
- generate an engine crank angle signal corresponding to the timing of the maximum value of the filtered acceleration signal,
- compare the engine crank angle signal with a target value, and
- adjust the internal combustion engine based upon the comparing.
Dependencies are inferred from the claim text.