초록 ▼

A system for controlling a vehicle having an internal combustion engine and a variable geometry turbocharger includes a turbocharger sensor having an output indicative of a current turbocharger geometry Turbocharger geometry is varied by a controllable actuator. Control logic determines a desired tu

A system for controlling a vehicle having an internal combustion engine and a variable geometry turbocharger includes a turbocharger sensor having an output indicative of a current turbocharger geometry Turbocharger geometry is varied by a controllable actuator. Control logic determines a desired turbocharger geometry based on the current engine conditions. Control logic determines an error signal by comparing the current turbocharger geometry to the desired turbocharger geometry. The actuator is controlled based on the error signal to change the current turbocharger geometry so as to track the desired turbocharger geometry.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method for controlling a vehicle having an internal combustion engine, a plurality of engine sensors indicative of current engine conditions, and a variable geometry turbocharger in which geometry is varied by a controllable actuator, the method comprising:determining

[ What is claimed is:] [1.]1. A method for controlling a vehicle having an internal combustion engine, a plurality of engine sensors indicative of current engine conditions, and a variable geometry turbocharger in which geometry is varied by a controllable actuator, the method comprising:determining a current turbocharger geometry based on an output of a turbocharger sensor;determining an engine speed:determining an engine torque demand:determining a desired turbocharger geometry based on the current engine conditions including the engine speed and the enginetorque demand;determining an error signal by comparing the current turbocharger geometry to the desired turbocharger geometry; andcontrolling the actuator based on the error signal to change the current turbocharger geometry so as to track the desired turbocharger geometry.