Method and device for controlling transient-state injection of a

Details Method and device for controlling transient-state injection of a Method and device for controlling transient-state injection of a

1997-06-13

1998-07-14

Nelli, Raymond A.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123436, 123675, F02B 300

Patent

active

057788502

ABSTRACT:
The method includes the steps of generating a reference injection pressure value as a function of the speed of a diesel engine and of the quantity of fuel supplied to the engine, the reference injection pressure value defining an optimum injection pressure value for steady-state operation of the engine; generating an incremental injection pressure value as a function of the speed of the engine and the supercharge pressure of the engine, the incremental injection pressure value defining the maximum permissible variation in injection pressure between one engine cycle and the next during a transient operating state of the engine; and generating a desired injection pressure value as a function of the reference injection pressure value and the incremental injection pressure value, and such that the variation in injection pressure during the transient operating state of the engine does not exceed the maximum permissible value.

REFERENCES:
patent: 4811899 (1989-03-01), Egler
patent: 5078107 (1992-01-01), Morikawa
patent: 5101785 (1992-04-01), Ito
patent: 5231962 (1993-08-01), Osuka et al.

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