Torque-based powertrain control for vehicles

Details Torque-based powertrain control for vehicles Torque-based powertrain control for vehicles

2007-10-02

2007-10-02

Huynh, Hai (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406550

Reexamination Certificate

active

11380793

ABSTRACT:
A system and method for controlling a vehicle powertrain having an internal combustion engine include determining a difference between a desired engine torque and a current engine torque, adjusting the difference based on a stored torque offset corresponding to a current engine speed, and controlling the engine to produce a torque corresponding to the adjusted torque difference. The stored torque offset is adjusted when the engine is operating in a predetermined engine speed range based on a steady-state difference between the desired and current engine torque to reduce the steady-state difference to zero. The adjusted torque difference may be limited by a maximum-engine-torque-available parameter and a minimum-engine-torque-available parameter, which is based on an operating temperature, such as the engine coolant temperature. The system and method may also include controlling spark to rapidly reduce current engine torque to the adjusted torque difference value.

REFERENCES:
patent: 5109695 (1992-05-01), James et al.
patent: 5935042 (1999-08-01), Thomas et al.
patent: 6065446 (2000-05-01), Engl et al.
patent: 6119063 (2000-09-01), Hieb et al.
patent: 6176218 (2001-01-01), Beechie et al.
patent: 6176808 (2001-01-01), Brown et al.
patent: 6188951 (2001-02-01), Beechie et al.
patent: 6279531 (2001-08-01), Robichaux et al.
patent: 6314802 (2001-11-01), Wu et al.
patent: 6349700 (2002-02-01), Buckland et al.
patent: 6363316 (2002-03-01), Soliman et al.
patent: 6460409 (2002-10-01), Soliman et al.
patent: 6553958 (2003-04-01), Kolmanovsky et al.
patent: 6664651 (2003-12-01), Kotre et al.
patent: 6688282 (2004-02-01), Okubo
patent: 6691807 (2004-02-01), Bhavsar et al.
patent: 6777904 (2004-08-01), Degner et al.
patent: 6820589 (2004-11-01), Okubo et al.
patent: 6827167 (2004-12-01), Cikanek et al.
patent: 6845305 (2005-01-01), Raftari et al.
patent: 6877480 (2005-04-01), Persson et al.
patent: 7085631 (2006-08-01), McGee et al.
patent: 2003/0173123 (2003-09-01), Nakanowatari
patent: 2006/0025904 (2006-02-01), McGee et al.
patent: 19739567 (1999-11-01), None

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