Microcontroller for pollution control system for an internal combustion engine
OwnerSerge V. Monrosinventor
Life of this patent
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Abstract
A pollution control system for an internal combustion engine includes a microcontroller and a power supply, a plurality of sensors configured to measure operating parameters of the engine, and a PCV valve responsive to a control signal from the microcontroller and configured to regulate a flow rate of blow-by gasses in the engine. The microcontroller includes programmable flash memory connected to a control processor, a power supply input, a sensor input configured to receive data from an engine sensor, and a signal output configured to transmit a signal from the control processor so as to control operation of a PCV valve regulating a flow rate of blow-by gasses in the engine.
Claims14
A pollution control system for an internal combustion engine, comprising:
- a microcontroller electrically connected to a power supply;
- a plurality of sensors connected to the microcontroller, each of the plurality of sensors configured to measure operating parameters of the engine including engine temperature and engine RPMs;
- and
- a PCV valve electrically connected to the microcontroller and responsive to a control signal therefrom, for regulating a flow rate of blow-by gases in the engine;
- and
- wherein the microcontroller has three operating states, comprising:
- a first operating state corresponding to an engine condition between ignition and the engine temperature reaching a preferred idle/operation temperature, wherein the microcontroller closes the valve;
- a second operating state corresponding to an engine condition after the engine temperature reaches the preferred idle/operation temperature wherein the microcontroller opens the PCV valve when the engine RPMs are within a predefined low/hi window of RPMs;
- and
- a third operating stare corresponding to an engine condition after the engine temperature reaches the preferred idle/operation temperature and the RPMs have been in the predefined low/hi window of RPMs for a predetermined duration wherein the microcontroller periodically opens and closes the PCV valve as long as the RPMs are in the redefined low-hi window.
Dependencies are inferred from the claim text.