Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
196 words
A method of controlling the operating amount of a control valve for regulating the quantity of intake air being supplied to an internal combustion engine, in a feedback manner responsive to the difference between a desired idling speed and an actual engine speed while said engine is in a predetermined idling region, said engine having a generator driven for supplying electric power to at least one electrical device in dependence upon the operative states of said electrical device, the method comprising the steps of: (1) detecting the value of a signal indicative of generating conditions of said generator; (2) determining a correction value for the operating amount of said control valve in dependence upon the value of said signal thus detected; (3) correcting the operating amount of said control valve by means of said correction value thus determined; and (4) setting an initial value of the operating amount of said control valve which is applied at the start of the feedback control to a sum of a value obtained by correcting said correction value by a predetermined increment, and a predetermined reference value, when said engine has entered said predetermined idling region immediately after deceleration thereof.
Claim 2
Independent Claim
196 words
A method of controlling the operating amount of a control valve for regulating the quantity of intake air being supplied to an internal combustion engine, in a feedback manner responsive to the difference between a desired idling speed and an actual engine speed while said engine is in a predetermined idling region, said engine having a generator driven for supplying electric power to at least one electrical device in dependence upon the operative states of said electrical device, the method comprising the steps of: (1) detecting the value of a signal indicative of generating conditions of said generator; (2) determining a correction value for the operating amount of said control valve in dependence upon the value of said signal thus detected; (3) correcting the operating amount of said control valve by means of said correction value thus determined; and (4) setting an initial value of the operating amount of said control valve which is applied at the start of the feedback control to a sum of a value obtained by correcting said correction value by a predetermined increment, and a predetermined reference value, when said engine has entered said predetermined idling region immediately after deceleration thereof.
Claim 3
Dependent Claim
20 words
A method as claimed in claim 1, wherein said correction value is corrected by multiplying same by said predetermined increment.
Claim 4
Dependent Claim
20 words
A method as claimed in claim 1, wherein said correction value is corrected by adding same to said predetermined increment.
Claim 5
Dependent Claim
36 words
A method as claimed in claim 1, wherein said predetermined reference value is set to a mean value of values of the operating amount of said control valve which have been obtained during past feedback control.
Claim 6
Dependent Claim
87 words
A method as claimed in claim 1, wherein when said engine is in a predetermined decelerating region wherein it is decelerating toward said predetermined idling region, the operating amount of said control valve is set to a value equal to the initial value thereof applicable at the start of the feedback control, and said engine is supplied with intake air through said control valve in a quantity corresponding to the operating amount of said control valve thus set while said engine is in said predetermined decelerating region.
Claim 7
Dependent Claim
38 words
A method as claimed in claim 5, wherein said predetermined decelerating region of said engine is a region wherein the engine speed decreases from a predetermined value higher than said desired idling speed toward said desired idling speed.
Claim 8
Dependent Claim
32 words
A method as claimed in claim 1, wherein the value of said signal indicative of generating conditions of said generator is proportionate to the magnitude of field current supplied to said generator.