Engine controlling method and system

Details Engine controlling method and system Engine controlling method and system

F - Mech Eng,Light,Heat,Weapons

02

D

341/38.121

F02D 28/00 (2006.01) F02D 41/26 (2006.01) F02P 5/15 (2006.01)

Patent

CA 1150803

ABSTRACT OF THE DISCLOSURE A method and a system for engine control are disclosed. Electrical signals representing the engine operating conditions are detected, which electrical signals, together with the control data stored in a memory, are used to calculate a correction factor for correcting the control data for controlling the engine, which the correction factor is stored in a volatile memory, thus controlling the engine on the basis of the control data corrected by the correction factor. The correction factor stored in RAM is transferred to a non-volatile memory under predetermined conditions. Even if the voltage applied to RAM is reduced to a level lower than the storage ability of RAM, resulting in the loss of the stored data, the correction factor stored in EAROM is transferred back to RAM upon resto- ration of a normal voltage at RAM.

349720

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