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Method and system for real-time compressor surge line adaptation

A technology of compressors and engines, applied in mechanical equipment, combustion engines, engine control, etc., can solve problems such as sacrificing drivability and reducing

Active Publication Date: 2019-03-15
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the available compressor map area can be reduced, and drivability can therefore be sacrificed

Method used

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  • Method and system for real-time compressor surge line adaptation
  • Method and system for real-time compressor surge line adaptation
  • Method and system for real-time compressor surge line adaptation

Examples

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Embodiment Construction

[0015] The following description pertains to learning about the figure 1 Systems and methods for surge behavior of a compressor in a system). The controller can be configured to execute control routines such as Image 6 procedure to perform an initial surge line adjustment. Furthermore, the controller can execute figure 2 routines and image 3 The mechanism to learn the surge line of the compressor in real time is adaptive. Furthermore, the controller can execute Figure 4 routines to detect faults in the CRV or compressor recirculation passage based on the adapted surge line. Figure 5 An example surge line adaptation is shown at .

[0016] figure 1 A schematic depiction of an example turbocharged engine system 100 including a multi-cylinder internal combustion engine 10 and twin turbocharged engines 120 and 130 is shown. As one non-limiting example, engine system 100 could be included as part of a propulsion system for a passenger vehicle. Engine system 100 is capa...

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Abstract

The invention relates to a method and system for real-time compressor surge line self-adaptation. Methods and systems for real-time adaptive compressor surge lines are provided. In one example, the method includes delaying the surge line in response to a number of surge events being greater than a threshold number of surge events, and in response to a number of active tip-out events that do not cause surge being greater than a tip-out event Threshold number of times to advance the surge line.

Description

technical field [0001] The present description generally relates to methods and systems for calibrating a surge line on a compressor map. Background technique [0002] Engine systems may be configured with a boosting device, such as a turbocharger or supercharger, to provide a boosted air charge and improved peak power output. The use of a compressor allows a smaller displacement engine to provide as much power as a larger displacement engine, but with additional fuel economy benefits. However, compressors are prone to surge when operating under low air flow and / or high pressure ratio conditions. For example, when the operator lifts off the accelerator pedal, the engine intake throttle closes, resulting in reduced forward flow through the compressor and the possibility of surge. Surge can lead to noise, vibration and harshness (NVH) problems, such as unwanted noise from the engine intake system. In extreme cases, surge can lead to compressor damage. [0003] The compress...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B51/00F02D41/22
CPCF02D41/22F04B51/00F02D41/12F02D41/0007F02D2200/602F04D27/001Y02T10/12F02B37/00F02C6/12F04D27/00F04D17/10F04D27/0253F02D35/00
Inventor 肖柏韬H-R·奥斯莎拉A·N·班克
Owner FORD GLOBAL TECH LLC