Estimated torque calculation device of internal combustion...

Details Estimated torque calculation device of internal combustion... Estimated torque calculation device of internal combustion...

2007-01-12

2008-11-25

Wolfe, Jr., Willis R. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S110000

Reexamination Certificate

active

07457702

ABSTRACT:
An ECU executes the step S100of detecting an intake air amount QA and an ignition timing IT, the step S200of calculating an estimated engine torque TE from QA and IT, the step S300of detecting the engine rotation speed NE and the turbine rotation speed NT, the step S400of calculating the speed ratio E of the torque converter210,the step S500of calculating a torque capacity C from the speed ratio, the step S600of calculating a reference torque TP(0) from the torque capacity C, the step S700correcting the reference torque TP(0) into TP based on a map, the step S900setting TE as the estimated engine torque if TP is greater than TE, and the step S1000setting TP as the estimated engine torque if TP is not greater than TE.

REFERENCES:
patent: 5991683 (1999-11-01), Takaoka et al.
patent: 6526343 (2003-02-01), Saito et al.
patent: 6678605 (2004-01-01), Kisaka et al.
patent: 6701246 (2004-03-01), Riedle et al.
patent: 6991052 (2006-01-01), Nogi et al.
patent: 2004/0128049 (2004-07-01), Kabe et al.
patent: 2005-120886 (2005-05-01), None

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