Method and device for predicting a future load signal in connect

Details Method and device for predicting a future load signal in connect Method and device for predicting a future load signal in connect

1994-12-14

1996-06-04

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

F02D 4104

Patent

active

055223672

ABSTRACT:
In a method and a device for predicting a future load signal (tLPr) in connection with the control of an internal-combustion engine, a crank-angle interval (wPr) is determined from the storage of fuel before use (wEE), from the fuel-injection period (wti), and from the calculation time (wB), expressed in units of time or crank-angle units. The future load signal (tLPr) is then determined from a current main-load signal (tL), a current auxiliary-load signal (tL'), which runs ahead of the current main-load signal (tL), and from the crank-angle interval (wPr). The determination is made using a first-order low-pass filter, whose filter constant (wF) is able to be specified in dependence upon load.

REFERENCES:
patent: 5094213 (1992-03-01), Dudek et al.
patent: 5367462 (1994-11-01), Klenk et al.

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