CYLINDER JUDGING CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

Title:

CYLINDER JUDGING CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP3162297

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To judge a cylinder correctly by providing with a comparing means of the input times of added Low and High wave form signals, a comparing means of just before and newest input times of the High wave form signal, and a comparing means of the input times of just before and newest input times of the Low wave form signal, and judging the cylinder on the basis of each of compared result.
SOLUTION: A rotation angle sensor 12 is arranged to output a wave form signal which consists of a H(High) signal and a L(Low) signal on the basis of rotation of an internal combustion engine 1, and the input time of each wave form of the L and H signals is calculated by a calculating means 51. The input times of the calculated just before and the newest H and L signals is added by each adding means 52, 53, and also the input times of the just before and newest H and L signals are compared with each other by each comparing means 54, 55, and the added L and H signal times are compared with each other by a comparing means 57. Comparing value from each comparing means 54, 55, 57 and a judging constant setting value from a setting means 58 are compared with each other by a cylinder judging means 59, it is recognized which is a pattern in two couple of L and H signal wave forms, and cylinder judgment is carried out.

Inventors:

Midoriya Miyazaki
Mamoru Nemoto
Masahiro Adachi

Application Number:

JP19649396A

Publication Date:

April 25, 2001

Filing Date:

July 25, 1996

Export Citation:

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