Torque controller for internal combustion engine

Details Torque controller for internal combustion engine Torque controller for internal combustion engine

2006-12-05

2006-12-05

Huynh, Hai (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S399000, C123S350000

Reexamination Certificate

active

07143741

ABSTRACT:
A throttle position corresponding to a R—R torque representing a torque in which a reserve torque is added to a required torque at MBT is computed. The throttle position is offset by an amount of a reserve torque in a torque increasing direction. An ignition retard amount for obtaining the required torque is computed based on a ration between the required torque and the R—R torque to cancel an increment in torque due to the offset of the throttle position. Because the offset amount of the ignition timing in the retard direction can be computed without an estimated torque which is determined based on the intake air flow rate including the leak air, it is restricted that the ignition retard amount becomes too large even if the large amount of leak air is generated at the throttle valve.

REFERENCES:
patent: 5765527 (1998-06-01), Lehner et al.
patent: 6786197 (2004-09-01), Wild et al.
patent: 6980901 (2005-12-01), Hartmann et al.
patent: 6994653 (2006-02-01), Hartmann et al.
patent: 2004/0055561 (2004-03-01), Wagner et al.

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