US 10,947,914 B2 · Reference value engine control systems and methods

Abstract

Methods and apparatuses for calibration and control of various engine subsystems using a target value approach. Under the target value approach, the control of each engine subsystem is separated or decoupled to include a set of target values, or a reference value set. A subsystem has a corresponding target determiner, which provides a target value set, or reference value set, in response to a basis variable set and optionally an overall subsystem target. The basis variable set includes parameters selected to robustly characterize the variables that affect the operation of the particular subsystem. The target determiner is optionally calibrated to provide a reference value set within specifications of the subsystem. A physical subsystem controller operates in response to the reference value set.

Claims43

Dependent claims

A method, comprising:

interpreting a basis variable set, the basis variable set including a predicted engine speed trajectory, a predicted fueling trajectory, and an ambient value;
determining a reference value set in response to the basis variable set and an air handling controller specification set, wherein the reference value set includes a mass charge flow (MCF) value and the air handling controller specification set comprises specifications of one or more controllers in an air handling system including acceptable ranges of input values for the one or more controllers in the air handling system;
and
providing the reference value set to an air handling control commander.

1 more element

An engine system, comprising:

an internal combustion engine;
a controller configured to:
interpret a basis variable set, the basis variable set including a predicted engine speed trajectory, a predicted fueling trajectory, and an ambient value;
determine a reference value set in response to the basis variable set and an air handling controller specification set, wherein the reference value set includes at least one of a mass charge flow value and a pumping work target and the air handling controller specification set comprises specifications of one or more controllers in an air handling system including acceptable ranges of input values for the one or more controllers in the air handling system;
and
provide at least one air handling command value in response to the reference value set;
and
an air handling system in operative communication with the engine and the controller, the air handling system structured to provide air to the engine in response to the at least one air handling command value.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/762,465Filed 14 Oct 2015

Published

US 2018/0266343 A120 Sep 2018

Granted

16 Mar 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification23 codes

F02D 41/0047
Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures:…
F02D 35/02
Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for: on interior conditions
F02D 35/025
On interior conditions: by determining temperatures inside the cylinder, e.g. combustion temperatures
F02D 41/0002
Electrical control of supply of combustible mixture or its constituents: controlling intake air

Reference value engine control systems and methods

Life of this patent

Reference value engine control systems and methods

Life of this patent

Abstract

Claims43