US 10,557,424 B2 · Method and system of air charging for an internal combustion engine

Abstract

Methods and systems are provided for controlling the operation of an air charging system of an internal combustion engine. A plurality of actuators include an electric motor of an air compressor. Output parameters of the air charging system are monitored by a plurality of sensors. An error between each one of the output parameters and a target value thereof is calculated by a processor. The calculated errors are applied to linear controllers that yield virtual inputs. Input parameters for the air charging system are calculated using the virtual inputs. The input parameters affect all of the output parameters. The input parameters are calculated with a non-linear mathematical model of the air charging system, configured such that each one of the virtual inputs is in a linear relation with only one of the output parameters. The actuators are operated using the input parameters.

Claims16

Dependent claims

A method of controlling the operation of an air charging system of an internal combustion engine, wherein the air charging system comprises, and wherein the method comprises:

monitoring, by a plurality of sensors, a plurality of output parameters of the air charging system;
calculating, by a processor, an error between each one of the output parameters and a target value thereof;
applying, by the processor, each one of the calculated errors to a linear controller that yields a virtual input;
calculating, by the processor, a plurality of input parameters for the air charging system using the virtual input with a non-linear mathematical model of the air charging system configured such that each one of the virtual inputs is in a linear relation with only one of the output parameters, wherein each one of the input parameters affects all of the output parameters;
and
operating a plurality of actuators of the air charging system including an electric motor of an air compressor, wherein each of the actuators using a corresponding one of the input parameters.

3 more elements

An air charging system of an internal combustion engine comprising:

a plurality of actuators including an electric motor of an air compressor;
and
an electronic control unit including a processor configured to:
monitor a plurality of output parameters of the air charging system,
calculate an error between each one of the monitored output parameters and a target value thereof,
apply each one of the calculated errors to a linear controller that yields a plurality of virtual inputs,
use the virtual inputs to calculate a plurality of input parameters for the air charging system, wherein the input parameters are calculated using a non-linear mathematical model of the air charging system configured such that each virtual input is in a linear relation with only one of the plurality of output parameters, and
use each of the input parameters to operate a corresponding one of the plurality of actuators of the air charging system.

5 more elements

Dependencies are inferred from the claim text.

Method and system of air charging for an internal combustion engine

Life of this patent

Method and system of air charging for an internal combustion engine

Life of this patent

Abstract

Claims16