Internal-combustion engines – High tension ignition system – Electronic cylinder sequencing
Patent
1987-01-02
1988-05-31
Cox, Ronald B.
Internal-combustion engines
High tension ignition system
Electronic cylinder sequencing
123613, F02P 504
Patent
active
047473894
ABSTRACT:
A crank angle detecting system for a multicylinder engine includes a disc formed with a large number of slits to detect one-degree crank angular positions and a small number of slits to detect a predetermined piston stroke for each cylinder. Since the widths of a small number of slits are different from each other, it is possible to separately discriminate each cylinder in crank angular position on the basis of the crank angle signals obtained by a large number of slits. In the case where the detecting system is incorporated with a group-ignition system, it is possible to detect a predetermined piston stroke for each cylinder immediately after the engine is started, thus preventing the engine from erroneous ignition.
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Ishigami Kazuhiro
Nakamura Katsuyuki
Nishiyama Masafumi
Yuzawa Haruo
Cox Ronald B.
Nissan Motor Company Limited
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