US 10,309,297 B2 · Method and systems for a turbocharger

Abstract

Various methods and systems are provided for a detecting surge of a turbocharger in an engine system. In one example, system includes a turbocharger including a compressor coupled to a turbine and a controller and sensor system configured to detect a surge event of the turbocharger based on at least one of a rate of change of a pressure measured by sensors downstream of the compressor and a measured rate of change of turbine speed, store operational data associated with the surge event in memory of the controller, and determine a performance of the turbocharger based at least in part on one or more of a cumulative number of detected surge events, a magnitude of detected surge events, or associated operational data.

Claims17

Dependent claims

A system, comprising:

a turbocharger including a compressor coupled to a turbine;
and
a controller coupled to a plurality of sensors, the controller configured to:
detect a surge event of the turbocharger based on at least one of a rate of change of a pressure measured by one or more sensors of the plurality of sensors downstream of the compressor and a measured rate of change of turbine speed;
store operational data associated with the surge event in memory of the controller;
determine a performance of the turbocharger based at least in part on one or more of a cumulative number of detected surge events, a magnitude of detected surge events, or operational data to generate turbocharger performance data;
and
adjust operation of the turbocharger based on the turbocharger performance data.

5 more elements

A method, comprising:

during a transient event where intake pressure of an engine is decreasing, detecting, via one or more sensors and an electronic controller, a turbocharger surge event based on a rate of change of the decrease in intake pressure and a rate of change of turbocharger turbine speed;
storing, in a memory of the electronic controller, turbine speed associated with the surge event;
classifying, via the electronic controller, the surge event based on the associated turbine speed;
indicating, via the electronic controller, a change in performance of the turbocharger when a number of surge events in one or more classifications reaches a threshold number;
and
adjusting, via the electronic controller, one or more operating parameters based on the change in performance of the turbocharger.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/190,496Filed 23 Jun 2016

Published

US 2017/0370280 A128 Dec 2017

Granted

4 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

F02B 37/16
Control of the pumps: by bypassing charging air
F02B 37/004
Engines characterised by provision of pumps driven at least for part of the time by exhaust: with exhaust drives arranged in series
F02B 37/007
Engines characterised by provision of pumps driven at least for part of the time by exhaust: with exhaust-driven pumps arranged in parallel , e.g.…
F02B 37/18
Control of the pumps: by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere

Method and systems for a turbocharger

Life of this patent

Method and systems for a turbocharger

Life of this patent

Abstract

Claims17