Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1994-05-19
1996-02-27
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
123643, F02P 900, F02P 1100
Patent
active
054940176
ABSTRACT:
A reference angle signal which provides a reference for ignition control of each cylinder is output together with a cylinder discrimination signal for matching the reference angle signal with the respective cylinder, and ignition control carried out for separate cylinders on the basis of the cylinder discrimination results from the cylinder discrimination signal. When there is an abnormality in the cylinder discrimination signal and cylinder judgment becomes nonfunctional, the reference angle signal is matched with the respective cylinder in the ignition order under the normal conditions up until the occurrence of the abnormality, and ignition is carried out normally in the separate cylinders. As a result, even if cylinder discrimination by the cylinder discrimination signal becomes nonfunctional, ignition for separate cylinders can be continued, so that the engine can keep running.
REFERENCES:
patent: 4471739 (1984-09-01), Yamato et al.
patent: 4476830 (1984-10-01), Hasegawa et al.
patent: 4485784 (1984-12-01), Fujii et al.
patent: 4494518 (1985-01-01), Katayama et al.
patent: 4658786 (1987-04-01), Foss et al.
patent: 4664082 (1987-05-01), Suzuki
Hirose Tomoyuki
Miyata Mitsuru
Argenbright Tony M.
Unisia Jecs Corporation
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