METHOD AND APPARATUS FOR MEASURING ENGINE MASS AIR FLOW

Title:

METHOD AND APPARATUS FOR MEASURING ENGINE MASS AIR FLOW

Document Type and Number:

Japanese Patent JPH01240754

Kind Code:

A

Abstract:

PURPOSE: To measure an engine mass air flow with a high and correct response speed by arranging a signal generator that generates cylinder pulses as a func tion of cylinder position and an air flow sensor that measures the air flow rate at fixed sampling periods.

CONSTITUTION: An engine 10 arranges an air flow sensor 12 in an inlet. A cam position sensor 14 has an one tooth cam shaft driven wheel and a fixed pick-up 16. A cylinder position sensor 18 has a fixed pick-up 20, that generates cylinder pulse signals, installed on the crank shaft. The signals generated by the three sensors 12, 14, 18 are input into a controller 22, and the instantaneous fuel conditions are calculated there, and then a fuel control order is missioned to the output line 25.

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Inventors:

EDOWAADO HARORUDO SHIYUMITSUTO
MAABUIN AANESUTO KAAPENTAA
DEEBITSUDO UIRIAMUSU UORUTAAZU

Application Number:

JP1609189A

Publication Date:

September 26, 1989

Filing Date:

January 25, 1989

Export Citation:

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Assignee:

GEN MOTORS CORP

International Classes:

G01C19/00; F02D41/00; F02D41/18; F02D41/34; F02D45/00; G01F1/00; G01F1/68; G01F15/075; G01P1/00; (IPC1-7): F02D41/18; F02D45/00; G01P1/00; G01P9/00

Attorney, Agent or Firm:

Kyozo Yuasa (4 outside)

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