Engine control system

Details Engine control system Engine control system

1997-04-29

1999-07-06

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123688, 123694, F02D 4114, F02D 4122

Patent

active

059185848

ABSTRACT:
Several embodiments of feedback control systems for either two or four-cycle engines that employ sensors such as oxygen sensors. The systems include an arrangement wherein the sensor condition is determined by comparing the response time with a normal response time. If the time of response is outside of the normal range, compensation may be made so as to permit continued feedback control. Embodiments are also describe that adjust the maximum permissible injection amount and also revert to an open control if the deterioration is more any predetermined amount.

REFERENCES:
patent: 4142482 (1979-03-01), Asano et al.
patent: 4624232 (1986-11-01), Saito et al.
patent: 5052361 (1991-10-01), Ono et al.
patent: 5065728 (1991-11-01), Nakaniwa
patent: 5235957 (1993-08-01), Furuya
patent: 5370101 (1994-12-01), Hamburg et al.
patent: 5526798 (1996-06-01), Seki
patent: 5568725 (1996-10-01), Uchikawa

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