Title:
FUEL INJECTION QUANTITY CONTROL METHOD FOR ENGINE
Document Type and Number:
Japanese Patent JP3221503
Kind Code:
B2
Abstract:
PURPOSE: To dispense with the unnecessary increase/decrease correction on the fuel injection control, secure good starting property, and prevent the drop of the rotating speed by fixing the correction term set based on the change of the intake air ratio at a fixed value from the starting state of an engine to the unidle state.
CONSTITUTION: An ECU 31 is inputted with various detection signals from various sensors 9a, 9b, 14, 16, 20a, 22, 24, 26 such as a thermal air flow meter 8 detecting the operational state of an engine. A CPU 32 calculates various control signals according to the control program of a ROM 33 and various data of a RAM 34 based on the detection signals. Various control signals are outputted to an ISV 11, an injector 12, and an ignitor 26. The correction term is set based on the change ratio of the intake air quantity in the unidle state of the engine. The correction term is fixed at a fixed value from the starting state of the engine to the unidle state. The fuel injection quantity of the injector 12 is set after at least the correction term is corrected.
Inventors:
Hiroshi Oishi
Application Number:
JP2016992A
Publication Date:
October 22, 2001
Filing Date:
February 05, 1992
Export Citation:
Assignee:
Fuji Heavy Industries Ltd.
International Classes:
F02D41/06; F02D41/18; F02D45/00; (IPC1-7): F02D41/06; F02D41/18; F02D45/00
Domestic Patent References:
| JP2227528A | ||||
| JP3175124A | ||||
| JP59200033A |
Attorney, Agent or Firm:
Susumu Ito