EP0199457A1
Expired / Lapsed
EP
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Fuel supply control method for internal combustion engines at low temperature
Assignee: Honda Motor Co Ltd
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Filing: 1986-03-18
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Granted: —
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Expires: 2006-03-18
Abstract
Abstract A basic value of fuel supply quantity determined by electronic control unit 8 in dependence on engine speed and load on the engine is corrected to an increased value by the use of a correction variable set based upon engine temperature (TW) and engine load (PBA). Intake air temperature (TA) is detected, and the correction variable is corrected in dependence on the detected intake air temperature. Preferably, the correction variable is corrected to a larger value as the detected intake air temperature is lower.
Inventors
- 👤 Hidekazu Kano
- 👤 Takashi Shinchi
- 👤 Shuichi Hosoi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 21:22
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/06; F02D41/068; F02D41/24; F02D41/2406; F02D41/2425; F02D41/2429; F02D41/2432; F02D41/2451
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
A method of controlling the quantity of fuel being supplied to an internal combustion engine in a cold state, wherein a basic value of the quantity of fuel being supplied to said engine is corrected to an increased value by the use of a fuel increasing correction variable which is set based upon a temperature of said engine and a load on said engine, characterized by said method comprising the following steps: (1) detecting a temperature of intake air being supplied to said engine, and (2) correcting said fuel increasing correction variable in dependence on said intake air temperature detected.
Claim 2
Independent Claim
100 words
A method of controlling the quantity of fuel being supplied to an internal combustion engine in a cold state, wherein a basic value of the quantity of fuel being supplied to said engine is corrected to an increased value by the use of a fuel increasing correction variable which is set based upon a temperature of said engine and a load on said engine, characterized by said method comprising the following steps: (1) detecting a temperature of intake air being supplied to said engine, and (2) correcting said fuel increasing correction variable in dependence on said intake air temperature detected.
Claim 3
Dependent Claim
27 words
A method as claimed in claim 1, wherein said fuel increasing correction variable is corrected to a larger value as said intake air temperature detected is lower.
Claim 4
Dependent Claim
21 words
A method as claimed in claim 1 or 2, wherein said temperature of said engine is the temperature of engine coolant.
Claim 5
Dependent Claim
26 words
A method as claimed in claim 1,2 or 3 wherein said load on said engine is the absolute pressure in an intake pipe of said engine.
Claim 6
Dependent Claim
25 words
A method as claimed in claim 1,2,3 or 4 wherein said fuel increasing correction variable is a coefficient by which said basic value is multiplied.
References Cited (Backward Citations)
GB2120417A
Cited
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