Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2008-05-27
2008-05-27
Kwon, John T. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S345000, C123S090150, C073S118040
Reexamination Certificate
active
10593443
ABSTRACT:
A control system which is capable of enhancing both the stability and the accuracy of control when the output of a controlled object is feedback-controlled by a plurality of control inputs. An ECU2of a control system1controls engine speed NE during idling by an ignition control input Usl_ig and an intake control input Usl_ar. The ECU2calculates a target engine speed NE_cmd according to an engine coolant temperature TW and the like (step3), and determines the ignition control input Usl_ig and the intake control input Usl_ar with a plurality of predetermined target value filter-type two-degree-of-freedom sliding mode control algorithms [equations (1) to (12)] sharing one switching function σne therebetween, such that the engine speed NE converges to the target engine speed NE_cmd (steps4to7and9).
REFERENCES:
patent: 6327850 (2001-12-01), Yasui et al.
patent: 6370473 (2002-04-01), Yasui et al.
patent: 7188020 (2007-03-01), Yasui et al.
patent: 2007/0131186 (2007-06-01), Yasui et al.
Higashitani Kosuke
Saito Mitsunobu
Sato Masahiro
Tagami Hiroshi
Yasui Yuji
Arent Fox LLP.
Kwon John T.
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