Exhaust gas recirculation system having a solenoid duty...

Details Exhaust gas recirculation system having a solenoid duty... Exhaust gas recirculation system having a solenoid duty...

F - Mech Eng,Light,Heat,Weapons

02

B

341/38.1

F02B 47/10 (2006.01) F02D 21/08 (2006.01) F02M 25/07 (2006.01)

Patent

CA 1120566

ABSTRACT OF THE DISCLOSURE The duty cycle of a driving pulse signal applied to an electromagnetic valve which controls the recircu- lation rate of the exhaust gas of an internal combustion engine, is compensated for by a compensation signal produced in accordance with the difference of the voltage of the power supply and a predetermined voltage so that the actual working period of the electromagnetic valve is adjusted optimally irrespectively of the deviation of the voltage of the power supply from the predetermined voltage, thereby providing the most suitable recirculation rate of the exhaust gas.

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