DEVICE TO CONTROL INTERNAL COMBUSTION ENGINE (OPTIONS) Russian patent published in 2008 - IPC F02D41/22 

FIELD: engines and pumps.

SUBSTANCE: device to control the internal combustion engine incorporating the fuel injection first mechanism to inject fuel into cylinder, the second fuel injection mechanism to inject fuel into the inlet manifold, the first fuel feed mechanism to feed fuel into the first fuel injection mechanism and the second fuel feed mechanism to feed fuel into the first and the second fuel injection mechanism. The control device incorporates a control unit to effect control over the first and second fuel injection mechanisms so that the both said mechanisms participate together in injection, the said control including the termination of injection by either the first or the second injection mechanism. The first fault detection unit is designed to pinpoint the fault in the first fuel injection mechanism, while the second fault detection mechanism is designed to pinpoint the fault in the said first fuel injection mechanism. The aforesaid control unit is designed so that to effect the control over fuel injection in the following way, i.e. fuel is injected by, at least, the first injection mechanism using the second fuel feed mechanism when the first fault detection unit pinpoints the fault in the first fuel feed mechanism, and the second fault detection mechanism does not reveal any faults in the first fuel injection mechanism. The device second, third and fourth versions are revealed in cl. 10, 19, 28 of the invention.

EFFECT: higher fail safety.

36 cl, 10 dwg