Method and system for sliding mode control of a turbocharger

Details Method and system for sliding mode control of a turbocharger Method and system for sliding mode control of a turbocharger

2005-06-07

2005-06-07

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S115000, C701S100000, C060S602000

Reexamination Certificate

active

06904353

ABSTRACT:
A method for defining a sliding mode control system for a turbocharger system is provided. The method includes perturbing a turbocharger actuator and measuring turbocharger boost pressure output from the perturbation. The perturbation and measurements are repeated for a plurality of states of operation of the turbocharger. System parameters identified for each of the plurality of states from the plurality of perturbations and measurements. A sliding mode control law may be defined for each of the plurality of states from the system parameters. A sliding mode control system for controlling the boost pressure of a turbocharger is also provided. An actuator for controlling the boost pressure is electrically controlled by a sliding mode controller to stabilize the turbocharger system toward a setpoint on a sliding surface. The control law is determined from a plurality of linear models from a plurality of operating states of the turbocharger system.

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