Inverse torque model solution and bounding

Details Inverse torque model solution and bounding Inverse torque model solution and bounding

2011-07-19

2011-07-19

Kwon, John T (Department: 3747)

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

C123S406230, C701S103000, C701S114000

Reexamination Certificate

active

07980221

ABSTRACT:
An engine control system includes a spark bound module that determines a bounded spark value based on a desired spark value, a torque bound module that determines a bounded torque value based on the bounded spark value and a desired torque value, and an inverse torque calculation module that determines a desired engine air value based on the bounded torque value and the square of the bounded spark value. The engine air value may be one of a desired air-per-cylinder value and a desired manifold air pressure value. The bounded spark value and the bounded torque value are determined based on one or more of a plurality of engine actuator positions. Related methods for determining the bounded spark value, the bounded torque value, and the engine air value are also provided.

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patent: 2007/0156325 (2007-07-01), Livshiz et al.
U.S. Appl. No. 11/685,735, filed Mar. 13, 2007, Livshiz.

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