Engine pre-throttle pressure estimation

Details Engine pre-throttle pressure estimation Engine pre-throttle pressure estimation

2007-12-04

2007-12-04

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C073S118040, C123S361000

Reexamination Certificate

active

11464340

ABSTRACT:
An engine control system for regulating operation of an engine having a throttle includes a first module that determines an intermediate parameter based on engine operating parameters and a second module that determines a pressure upstream of the throttle based on the intermediate parameter. A third module regulates operation of the engine based on the pressure. The engine operation is regulated based on a pre-determined relationship between a throttle position and an effective throttle area.

REFERENCES:
patent: 6895946 (2005-05-01), Livshiz et al.
patent: 6968824 (2005-11-01), Matthews et al.
patent: 7021282 (2006-04-01), Livshiz et al.

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